*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --primary: #F59E0B;
  --primary-dark: #D97706;
  --primary-light: #FEF3C7;
  --sidebar-bg: #0F172A;
  --body-bg: #F8FAFC;
  --success: #059669;
  --success-light: #ecfdf5;
  --warning: #d97706;
  --warning-light: #fffbeb;
  --danger: #dc2626;
  --danger-light: #fef2f2;
  --gray-50: #f9fafb;
  --gray-100: #f3f4f6;
  --gray-200: #e5e7eb;
  --gray-300: #d1d5db;
  --gray-400: #9ca3af;
  --gray-500: #6b7280;
  --gray-600: #4b5563;
  --gray-700: #374151;
  --gray-800: #1f2937;
  --gray-900: #111827;
  --sidebar-width: 240px;
  --radius: 10px;
  --primary-glow: rgba(245, 158, 11, 0.16);
  --shadow: 0 1px 3px rgba(0,0,0,.1), 0 1px 2px rgba(0,0,0,.06);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,.1), 0 2px 4px -1px rgba(0,0,0,.06);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,.1), 0 4px 6px -2px rgba(0,0,0,.05);
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--body-bg);
  color: var(--gray-800);
  min-height: 100vh;
  font-size: 15px;
  line-height: 1.5;
}

.screen { min-height: 100vh; }
.hidden { display: none !important; }

/* ─── AUTH ──────────────────────────────────────────────────────────────── */
#auth-screen {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  background: linear-gradient(135deg, #F59E0B 0%, #D97706 100%);
  padding: 20px;
}

.auth-box {
  background: #fff;
  border-radius: 16px;
  box-shadow: var(--shadow-lg);
  width: 100%;
  max-width: 420px;
  padding: 40px;
}

.logo { text-align: center; margin-bottom: 28px; }
.logo-icon { font-size: 48px; margin-bottom: 12px; }
.logo h1 { font-size: 24px; font-weight: 700; color: var(--gray-900); }
.logo p { color: var(--gray-500); font-size: 14px; margin-top: 4px; }

.tab-bar {
  display: flex;
  border-bottom: 2px solid var(--gray-200);
  margin-bottom: 24px;
}

.tab-btn {
  flex: 1;
  padding: 10px;
  background: none;
  border: none;
  font-size: 15px;
  font-weight: 500;
  color: var(--gray-500);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  transition: all .2s;
}
.tab-btn.active { color: var(--primary); border-bottom-color: var(--primary); }

.auth-form { display: flex; flex-direction: column; gap: 16px; }

/* ─── APP LAYOUT ────────────────────────────────────────────────────────── */
:root { --topnav-height: 56px; }
#app-screen { display: block; min-height: 100vh; }

/* ─── TOPNAV SHELL ───────────────────────────────────────────────────────── */
.topnav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  height: var(--topnav-height);
  display: flex; align-items: center; gap: 4px;
  padding: 0 16px;
  background: #0F172A;
  border-bottom: 1px solid rgba(255,255,255,.08);
  box-shadow: 0 1px 4px rgba(0,0,0,.2);
}

/* ─── TOPNAV: LEFT / BRAND ───────────────────────────────────────────────── */
.topnav-left { display: flex; align-items: center; gap: 8px; margin-right: 8px; flex-shrink: 0; }
.topnav-brand { font-weight: 800; font-size: 17px; white-space: nowrap; color: var(--primary); letter-spacing: 0.2px; }
.topnav-hamburger {
  display: none; background: none; border: none; font-size: 20px;
  cursor: pointer; padding: 4px 8px; color: var(--gray-400);
}

/* ─── TOPNAV: LINKS ROW ──────────────────────────────────────────────────── */
.topnav-links { display: flex; align-items: center; flex: 1; gap: 2px; }

/* ─── TNAV GROUP + TRIGGER ───────────────────────────────────────────────── */
.tnav-group { position: relative; }
.tnav-group-trigger {
  display: flex; align-items: center; gap: 5px;
  padding: 6px 12px; border-radius: 6px;
  background: none; border: none; cursor: pointer;
  font-size: 13px; font-weight: 500;
  color: var(--gray-300);
  white-space: nowrap;
  transition: background 150ms, color 150ms;
}
.tnav-group-trigger:hover { background: rgba(255,255,255,.08); color: #fff; }
.tnav-group.open .tnav-group-trigger { background: rgba(255,255,255,.08); color: #fff; }

/* ─── SMOOTH DROPDOWN ────────────────────────────────────────────────────── */
.tnav-dropdown {
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  min-width: 200px;
  background: #0F172A;
  border: 1px solid rgba(255,255,255,.1);
  border-radius: 10px;
  box-shadow: 0 8px 24px rgba(0,0,0,.35);
  overflow: hidden;
  max-height: 0;
  opacity: 0;
  transform: translateY(-8px);
  visibility: hidden;
  pointer-events: none;
  transition:
    max-height 220ms cubic-bezier(0.4, 0, 0.2, 1),
    opacity    180ms cubic-bezier(0.4, 0, 0.2, 1),
    transform  180ms cubic-bezier(0.4, 0, 0.2, 1),
    visibility 0ms   linear 220ms;
}
.tnav-group.open .tnav-dropdown {
  max-height: 480px;
  opacity: 1;
  transform: translateY(0);
  visibility: visible;
  pointer-events: auto;
  transition:
    max-height 220ms cubic-bezier(0.4, 0, 0.2, 1),
    opacity    180ms cubic-bezier(0.4, 0, 0.2, 1),
    transform  180ms cubic-bezier(0.4, 0, 0.2, 1),
    visibility 0ms   linear 0ms;
}
.tnav-dropdown-right { left: auto; right: 0; }

/* ─── DROPDOWN ITEMS ─────────────────────────────────────────────────────── */
.tnav-dropdown .tnav-nav-link {
  display: block; padding: 9px 16px;
  font-size: 13px; color: var(--gray-400);
  text-decoration: none; background: none; border: none;
  width: 100%; text-align: left; cursor: pointer;
  transition: background 120ms, color 120ms;
}
.tnav-dropdown .tnav-nav-link:hover { background: rgba(255,255,255,.08); color: #fff; }
.tnav-dropdown .tnav-nav-link.active { color: var(--primary); font-weight: 600; background: rgba(245,158,11,.12); }

/* ─── USER INFO IN AVATAR DROPDOWN ──────────────────────────────────────── */
.tnav-user-info { padding: 10px 16px 6px; }
.tnav-user-info span { display: block; font-size: 12px; color: var(--gray-400); }
.tnav-user-display-name { font-weight: 600; font-size: 13px !important; color: #fff !important; }
.tnav-role-badge { margin-top: 2px; font-size: 10px !important; text-transform: uppercase; letter-spacing: .05em; }
.tnav-divider { border: none; border-top: 1px solid rgba(255,255,255,.08); margin: 4px 0; }
.tnav-logout-btn { color: #f87171 !important; }

/* ─── TOPNAV: RIGHT SECTION ──────────────────────────────────────────────── */
.topnav-right { display: flex; align-items: center; gap: 4px; margin-left: auto; flex-shrink: 0; }
.topnav-darkmode-btn {
  background: none; border: none; cursor: pointer;
  font-size: 16px; padding: 6px 8px; border-radius: 6px; color: var(--gray-400);
  transition: background 150ms, color 150ms;
}
.topnav-darkmode-btn:hover { background: rgba(255,255,255,.08); color: #fff; }
.topnav-avatar-btn {
  width: 32px; height: 32px; border-radius: 50%;
  background: var(--primary); color: #0F172A;
  font-size: 13px; font-weight: 700;
  display: flex; align-items: center; justify-content: center;
  border: none; cursor: pointer; flex-shrink: 0;
}

/* ─── MOBILE DRAWER ──────────────────────────────────────────────────────── */
.topnav-drawer-overlay {
  display: none; position: fixed; inset: 0;
  background: rgba(0,0,0,.5); z-index: 1100;
}
.topnav-drawer-overlay.open { display: block; }
.topnav-drawer {
  position: fixed; top: 0; left: 0; bottom: 0; width: 260px; z-index: 1200;
  background: #0F172A; border-right: 1px solid rgba(255,255,255,.08);
  transform: translateX(-100%);
  transition: transform 240ms cubic-bezier(0.4, 0, 0.2, 1);
  overflow-y: auto;
}
.topnav-drawer.open { transform: translateX(0); }
.topnav-drawer-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px; border-bottom: 1px solid rgba(255,255,255,.08);
}
.topnav-drawer-close {
  background: none; border: none; font-size: 18px; cursor: pointer; color: var(--gray-400);
}
.topnav-drawer .tnav-nav-link {
  display: block; padding: 10px 20px; font-size: 14px;
  color: var(--gray-400); text-decoration: none;
  border: none; background: none; width: 100%; text-align: left; cursor: pointer;
  transition: background 120ms, color 120ms;
}
.topnav-drawer .tnav-nav-link:hover { background: rgba(255,255,255,.08); color: #fff; }
.topnav-drawer .tnav-nav-link.active { color: var(--primary); font-weight: 600; }
.drawer-group-label {
  padding: 12px 20px 4px; font-size: 10px; font-weight: 700;
  color: var(--gray-500); text-transform: uppercase; letter-spacing: .08em;
}

/* ─── RESPONSIVE BREAKPOINT ──────────────────────────────────────────────── */
@media (max-width: 768px) {
  .topnav-links { display: none; }
  .topnav-hamburger { display: flex; }
}
@media (min-width: 769px) {
  .topnav-hamburger { display: none !important; }
}

/* ─── NOTIF BADGE (topnav) ───────────────────────────────────────────────── */
.tnav-notif-wrap { position: relative; }
.tnav-notif-btn {
  background: none; border: none; cursor: pointer;
  font-size: 18px; padding: 6px 8px; border-radius: 6px; color: var(--gray-400);
  transition: background 150ms, color 150ms;
}
.tnav-notif-btn:hover { background: rgba(255,255,255,.08); color: #fff; }
.tnav-notif-badge {
  position: absolute; top: 2px; right: 2px;
  background: #ef4444; color: #fff;
  font-size: 10px; font-weight: 700;
  border-radius: 999px; min-width: 16px; height: 16px;
  display: flex; align-items: center; justify-content: center;
  padding: 0 3px;
}

/* ─── MAIN CONTENT LAYOUT ────────────────────────────────────────────────── */
.main-content {
  margin-left: 0;
  padding: 32px;
  padding-top: calc(var(--topnav-height) + 32px);
  max-width: none;
  min-width: 0;
}

.view { animation: fadeIn .2s ease; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }

/* Dashboard / History / Feedback stay comfortably readable */
#view-dashboard, #view-history, #view-feedback { max-width: 860px; }

/* ─── PAGE HEADER ───────────────────────────────────────────────────────── */
.page-header { margin-bottom: 28px; }
.page-header h2 { font-size: 24px; font-weight: 700; color: var(--gray-900); }
.page-header p { color: var(--gray-500); margin-top: 4px; }

/* ─── BUTTONS ───────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 9px 18px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: all .15s;
  text-decoration: none;
}
.btn:disabled { opacity: .55; cursor: not-allowed; }
.btn-primary { background: var(--primary); color: #0F172A; }
.btn-primary:hover:not(:disabled) { background: var(--primary-dark); transform: translateY(-1px); box-shadow: 0 4px 12px rgba(245,158,11,.35); }
.btn-primary:active:not(:disabled) { transform: translateY(0); box-shadow: none; }
.btn-secondary { background: var(--gray-100); color: var(--gray-700); border: 1px solid var(--gray-200); }
.btn-secondary:hover { background: var(--gray-200); }
.btn-ghost { background: transparent; color: var(--gray-500); border: none; }
.btn-ghost:hover { color: var(--gray-700); background: var(--gray-100); }
.btn-full { width: 100%; }
.btn-lg { padding: 12px 24px; font-size: 15px; }
.btn-sm { padding: 6px 12px; font-size: 13px; }
.btn-xs { padding: 3px 8px; font-size: 12px; border-radius: 6px; }
.btn-danger { background: var(--danger); color: #fff; border: none; }
.btn-danger:hover:not(:disabled) { background: #b91c1c; }
.btn-teacher { background: #d1fae5; color: #065f46; border: 1px solid #6ee7b7; }
.btn-teacher:hover:not(:disabled) { background: #a7f3d0; }
.text-muted { color: var(--gray-400); font-size: 13px; }
.btn-back {
  background: none;
  border: none;
  color: var(--primary);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  padding: 0;
  margin-bottom: 8px;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.btn-back-test {
  background: rgba(255,255,255,.1);
  border: 1px solid rgba(255,255,255,.2);
  color: #fff;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  padding: 6px 12px;
  border-radius: 7px;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  transition: all .15s;
  white-space: nowrap;
}
.btn-back-test:hover { background: rgba(255,255,255,.2); }

/* ─── DISCARD MODAL ─────────────────────────────────────────────────────── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.55);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}
.modal-box {
  background: #fff;
  border-radius: 14px;
  padding: 32px;
  max-width: 420px;
  width: 90%;
  box-shadow: var(--shadow-lg);
  text-align: center;
}
.modal-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: 10px;
}
.modal-desc {
  font-size: 14px;
  color: var(--gray-500);
  margin-bottom: 24px;
  line-height: 1.6;
}
.modal-actions {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.btn-modal-submit {
  background: var(--primary);
  color: #0F172A;
  font-weight: 700;
}
.btn-modal-discard {
  background: var(--danger);
  color: #fff;
  font-weight: 700;
}
.btn-modal-cancel {
  background: var(--gray-100);
  color: var(--gray-700);
  font-weight: 600;
}

/* ─── FORMS ─────────────────────────────────────────────────────────────── */
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group label {
  font-size: 14px;
  font-weight: 600;
  color: var(--gray-700);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

input[type="text"], input[type="email"], input[type="password"], textarea, select {
  padding: 10px 14px;
  border: 1.5px solid var(--gray-200);
  border-radius: 8px;
  font-size: 15px;
  font-family: inherit;
  color: var(--gray-800);
  background: #fff;
  transition: border-color .15s;
  width: 100%;
  resize: vertical;
}
input:focus, textarea:focus, select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-glow);
}

.submit-form { display: flex; flex-direction: column; gap: 24px; }
.form-actions { display: flex; justify-content: flex-end; }

/* ─── CHART CONTAINER ────────────────────────────────────────────────────── */
.chart-container {
  background: #fff;
  border: 1.5px solid #e5e7eb;
  border-radius: 14px;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}
.chart-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 18px 10px;
  background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
  border-bottom: 1px solid #e5e7eb;
  font-weight: 700;
  font-size: 13px;
  color: var(--gray-700);
}
.chart-status {
  font-size: 12px;
  font-weight: 400;
  color: var(--gray-500);
}
.chart-status.loading { color: var(--primary); }
#chart-area {
  padding: 16px 20px 12px;
  max-height: 340px;
}
#chart-area canvas { max-height: 300px; }
#table-area { padding: 0 4px 4px; }
.chart-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
.chart-table th {
  background: #f3f4f6;
  padding: 9px 14px;
  text-align: left;
  font-weight: 700;
  color: var(--gray-700);
  border-bottom: 2px solid #d1d5db;
  border-right: 1px solid #e5e7eb;
}
.chart-table th:last-child { border-right: none; }
.chart-table td {
  padding: 8px 14px;
  border-bottom: 1px solid #f0f0f0;
  border-right: 1px solid #f0f0f0;
  color: var(--gray-700);
}
.chart-table td:last-child { border-right: none; }
.chart-table tbody tr:last-child td { border-bottom: none; }
.chart-table tbody tr:hover td { background: #fafafa; }

/* ─── PASTE HINT NUDGE ───────────────────────────────────────────────────── */
.paste-hint-nudge {
  background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
  border: 1px solid #fbbf24;
  border-radius: 10px;
  padding: 10px 16px;
  font-size: 13px;
  color: #92400e;
  line-height: 1.5;
  animation: fadeIn .3s ease;
}

/* ─── TASK SELECTOR ─────────────────────────────────────────────────────── */
.task-selector { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.task-option input[type="radio"] { display: none; }
.task-option-card {
  padding: 16px;
  border: 3px solid var(--gray-200);
  border-radius: 10px;
  cursor: pointer;
  transition: all .15s;
  user-select: none;
}
.task-option-card:hover { border-color: var(--primary); background: var(--primary-light); }
.task-option input:checked + .task-option-card {
  border-color: var(--primary);
  border-width: 3px;
  background: var(--primary-light);
}
.task-option-title { font-weight: 700; font-size: 15px; color: var(--gray-900); margin-bottom: 4px; }
.task-option-desc { font-size: 13px; color: var(--gray-600); margin-bottom: 6px; }
.task-option-meta { font-size: 12px; color: var(--primary); font-weight: 600; }

.word-count-badge {
  background: var(--gray-100);
  color: var(--gray-600);
  padding: 2px 8px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
}
.word-count-badge.ok { background: var(--success-light); color: var(--success); }
.word-count-badge.warn { background: var(--warning-light); color: var(--warning); }
.word-count-info { font-size: 13px; color: var(--gray-500); margin-top: 4px; }

/* ─── WORD COUNT BAR ─────────────────────────────────────────────────────── */
.word-count-bar-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 6px;
  margin-bottom: 2px;
}
.word-count-bar-track {
  flex: 1;
  height: 6px;
  background: var(--gray-200);
  border-radius: 99px;
  overflow: hidden;
}
.word-count-bar-fill {
  height: 100%;
  width: 0%;
  border-radius: 99px;
  transition: width .25s ease, background-color .25s ease;
  background: var(--gray-400);
}
.word-count-bar-fill.bar-low  { background: #ef4444; }
.word-count-bar-fill.bar-warn { background: #f59e0b; }
.word-count-bar-fill.bar-ok   { background: #10b981; }
.word-count-bar-text {
  font-size: 12px;
  font-weight: 600;
  color: var(--gray-500);
  white-space: nowrap;
  min-width: 80px;
  text-align: right;
}

/* ─── STATS GRID ────────────────────────────────────────────────────────── */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 16px;
  margin-bottom: 32px;
}

.stat-card {
  background: #fff;
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow);
  border: 1px solid var(--gray-200);
  text-align: center;
}
.stat-value { font-size: 32px; font-weight: 800; color: var(--primary); letter-spacing: -0.5px; line-height: 1; }
.stat-label { font-size: 13px; color: var(--gray-500); margin-top: 4px; }

/* ─── RECENT / HISTORY ──────────────────────────────────────────────────── */
.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}
.section-header h3 { font-size: 18px; font-weight: 700; color: var(--gray-900); }

.submission-card {
  background: var(--gray-50);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  padding: 18px 20px;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 16px;
  cursor: pointer;
  transition: all .15s;
  box-shadow: var(--shadow);
}
.submission-card:hover { border-color: var(--primary); box-shadow: var(--shadow-md); transform: translateY(-1px); }

.submission-badge {
  flex-shrink: 0;
  width: 52px; height: 52px;
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-size: 13px; font-weight: 800;
}
.badge-t1 { background: #dbeafe; color: #1d4ed8; }
.badge-t2 { background: #ede9fe; color: #6d28d9; }

.submission-info { flex: 1; min-width: 0; }
.submission-prompt {
  font-weight: 600;
  font-size: 14px;
  color: var(--gray-800);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.submission-meta { font-size: 12px; color: var(--gray-400); margin-top: 3px; }

.submission-score {
  flex-shrink: 0;
  text-align: right;
}
.band-score {
  font-size: 22px;
  font-weight: 800;
  color: var(--primary);
}
.band-label { font-size: 11px; color: var(--gray-400); }

.status-chip {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
}
.status-graded { background: var(--success-light); color: var(--success); }
.status-grading { background: var(--warning-light); color: var(--warning); }
.status-pending { background: var(--gray-100); color: var(--gray-500); }
.status-error { background: var(--danger-light); color: var(--danger); }
.status-pending-review { background: #dbeafe; color: #1e40af; }
[data-theme="dark"] .status-pending-review { background: #1e3a5f; color: #93c5fd; }

/* ─── FEEDBACK ───────────────────────────────────────────────────────────── */
.feedback-header {
  background: #fff;
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
  border: 1px solid var(--gray-200);
  margin-bottom: 20px;
}
.feedback-task-info {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
}

.band-breakdown {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 12px;
  margin-top: 16px;
}

.band-item {
  text-align: center;
  padding: 14px 10px;
  border-radius: 10px;
  background: var(--gray-50);
  border: 1.5px solid var(--gray-200);
}
.band-item-score { font-size: 26px; font-weight: 800; }
.band-item-label { font-size: 11px; color: var(--gray-500); margin-top: 2px; line-height: 1.3; }

.overall-band-display {
  text-align: center;
  padding: 20px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  border-radius: 12px;
  color: #fff;
  margin-bottom: 20px;
}
.overall-number { font-size: 56px; font-weight: 900; line-height: 1; }
.overall-label { font-size: 14px; opacity: .85; margin-top: 4px; }

.feedback-section {
  background: var(--gray-50);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
  border: 1px solid var(--gray-200);
  margin-bottom: 16px;
}
.feedback-section h3 { font-size: 16px; font-weight: 700; margin-bottom: 14px; color: var(--gray-900); }

.feedback-text { font-size: 14px; line-height: 1.8; color: var(--gray-700); white-space: pre-wrap; }

.list-items { list-style: none; display: flex; flex-direction: column; gap: 8px; }
.list-items li {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 14px;
  color: var(--gray-700);
  line-height: 1.5;
}
.list-items li::before { flex-shrink: 0; margin-top: 2px; }
.strengths-list li::before { content: '✓'; color: var(--success); font-weight: 700; }
.improvements-list li::before { content: '→'; color: var(--primary); font-weight: 700; }

.essay-box {
  background: var(--gray-50);
  border: 1px solid var(--gray-200);
  border-radius: 8px;
  padding: 16px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--gray-700);
  white-space: pre-wrap;
  max-height: 400px;
  overflow-y: auto;
}

/* ─── MISC ───────────────────────────────────────────────────────────────── */
.error-msg {
  background: var(--danger-light);
  color: var(--danger);
  padding: 10px 14px;
  border-radius: 8px;
  font-size: 14px;
  border: 1px solid #fecaca;
}
.success-msg {
  background: var(--success-light);
  color: var(--success);
  padding: 10px 14px;
  border-radius: 8px;
  font-size: 14px;
  border: 1px solid #a7f3d0;
}

.empty-state {
  text-align: center;
  padding: 48px 20px;
  color: var(--gray-400);
  font-size: 15px;
}
.empty-state a { color: var(--primary); text-decoration: none; font-weight: 600; }

.loading {
  text-align: center;
  padding: 40px;
  color: var(--gray-400);
  font-size: 15px;
}

.grading-notice {
  background: var(--warning-light);
  border: 1px solid #fde68a;
  border-radius: 10px;
  padding: 20px;
  text-align: center;
  color: var(--warning);
  font-size: 15px;
}
.grading-notice strong { display: block; font-size: 18px; margin-bottom: 6px; }

/* Band score color coding */
.band-9 { color: #047857; }
.band-8 { color: #059669; }
.band-7 { color: #0ea5e9; }
.band-6 { color: #4f46e5; }
.band-5 { color: #d97706; }
.band-4 { color: #dc2626; }
.band-low { color: #9ca3af; }

/* ─── GENERATE TASK BUTTON ───────────────────────────────────────────────── */
.generate-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 4px 12px;
  background: linear-gradient(135deg, #F59E0B, #D97706);
  color: #0F172A;
  border: none;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: all .2s;
  white-space: nowrap;
  box-shadow: 0 1px 4px rgba(245,158,11,.35);
}
.generate-btn:hover:not(:disabled) {
  background: linear-gradient(135deg, #D97706, #B45309);
  box-shadow: 0 2px 8px rgba(245,158,11,.45);
  transform: translateY(-1px);
}
.generate-btn:disabled {
  opacity: .7;
  cursor: not-allowed;
  transform: none;
}

/* ─── HINT TOOLBAR (legacy, kept for compatibility) ──────────────────────── */
.hint-toolbar {
  display: flex;
  gap: 8px;
  margin-top: 10px;
}

.hint-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 7px 16px;
  background: var(--gray-50);
  border: 1.5px solid var(--gray-200);
  border-radius: 20px;
  font-size: 13px;
  font-weight: 600;
  color: var(--gray-700);
  cursor: pointer;
  transition: all .15s;
}
.hint-btn:hover {
  background: var(--primary-light);
  border-color: var(--primary);
  color: var(--primary);
}

/* ─── HINT PANEL (legacy) ────────────────────────────────────────────────── */
.hint-panel {
  margin-top: 12px;
  background: var(--gray-50);
  border: 1.5px solid var(--primary);
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  animation: slideDown .2s ease;
}

@keyframes slideDown {
  from { opacity: 0; transform: translateY(-8px); }
  to   { opacity: 1; transform: translateY(0); }
}

.hint-panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  background: var(--primary-light);
  border-bottom: 1px solid rgba(79,70,229,.15);
  font-weight: 700;
  font-size: 14px;
  color: var(--primary-dark);
}

.hint-close-btn {
  background: none;
  border: none;
  font-size: 16px;
  color: var(--gray-500);
  cursor: pointer;
  padding: 0 4px;
  line-height: 1;
  transition: color .15s;
}
.hint-close-btn:hover { color: var(--gray-900); }

.hint-panel-body {
  padding: 16px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--gray-700);
  max-height: 320px;
  overflow-y: auto;
  white-space: pre-wrap;
}

.hint-thinking {
  color: var(--gray-400);
  font-style: italic;
}

/* ─── SUBMIT TWO-COLUMN LAYOUT ───────────────────────────────────────────── */
.submit-layout {
  display: grid;
  grid-template-columns: 3fr 2fr;
  gap: 28px;
  align-items: start;
}
.submit-left { min-width: 0; }
.submit-right {
  position: sticky;
  top: 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
@media (max-width: 900px) {
  .submit-layout { grid-template-columns: 1fr; }
  .submit-right { position: static; }
}

/* ─── TOPIC CHIPS ────────────────────────────────────────────────────────── */
.topic-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 2px;
}
.topic-chip {
  padding: 5px 14px;
  border-radius: 20px;
  border: 1.5px solid var(--gray-200);
  background: var(--gray-50);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all .15s;
  color: var(--gray-700);
  line-height: 1.5;
}
.topic-chip:hover { border-color: var(--primary); color: var(--primary); }
.topic-chip.active {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
}

/* ─── BUDGET BAR ─────────────────────────────────────────────────────────── */
.budget-bar {
  display: flex;
  flex-direction: column;
  gap: 4px;
  background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
  border: 1px solid #bae6fd;
  border-radius: 10px;
  padding: 12px 16px;
  font-size: 13px;
  font-weight: 600;
  color: #0369a1;
}
#budget-essays { font-weight: 400; font-size: 12px; color: #0284c7; }
/* budget-bar dark override lives in [data-theme="dark"] block below */

/* ─── HINTS PANEL (right column) ─────────────────────────────────────────── */
.hints-section { margin: 0; }
.hints-section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}
.hints-section-title { font-weight: 700; color: var(--gray-700); font-size: 14px; }
.btn-refresh-hints {
  background: linear-gradient(135deg, #7c3aed 0%, #6d28d9 100%);
  color: white;
  border: none;
  border-radius: 20px;
  padding: 7px 14px;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: opacity 0.2s;
}
.btn-refresh-hints:hover { opacity: 0.85; }
.btn-refresh-hints:disabled { opacity: 0.5; cursor: not-allowed; }
/* Vertical stack for right panel */
.hints-grid-vertical {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}
/* Legacy horizontal grid kept for backward compatibility */
.hints-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
@media (max-width: 768px) { .hints-grid { grid-template-columns: 1fr; } }
.hint-card {
  background: var(--gray-50);
  border: 1px solid var(--gray-200);
  border-radius: 12px;
  overflow: hidden;
}
.hint-card-header {
  background: var(--gray-100);
  padding: 9px 14px;
  font-weight: 700;
  font-size: 12px;
  color: var(--gray-700);
  border-bottom: 1px solid var(--gray-200);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.hint-generate-btn {
  font-size: .72rem;
  padding: 2px 10px;
  border: 1px solid var(--primary);
  border-radius: 12px;
  background: transparent;
  color: var(--primary);
  cursor: pointer;
  transition: all .15s;
  white-space: nowrap;
  font-weight: 600;
}
.hint-generate-btn:hover { background: var(--primary); color: white; }
.hint-generate-btn:disabled { opacity: .5; cursor: not-allowed; }
.hint-card-body {
  padding: 12px 14px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--gray-700);
  max-height: 260px;
  overflow-y: auto;
}
.hint-empty { color: #9ca3af; font-style: italic; }

/* ─── CRITERION CARDS ────────────────────────────────────────────────────── */
.criterion-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin: 20px 0;
}
@media (max-width: 900px) { .criterion-grid { grid-template-columns: 1fr; } }
.criterion-card {
  background: white;
  border: 1px solid #e5e7eb;
  border-radius: 14px;
  padding: 18px;
  box-shadow: 0 1px 4px rgba(0,0,0,0.05);
}
.criterion-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}
.criterion-name { font-weight: 700; font-size: 14px; color: var(--gray-700); }
.criterion-band {
  font-size: 22px;
  font-weight: 800;
  padding: 4px 12px;
  border-radius: 8px;
}
.criterion-descriptor {
  font-size: 13px;
  color: var(--gray-600);
  line-height: 1.6;
  margin-bottom: 12px;
  padding: 10px;
  background: #f9fafb;
  border-radius: 8px;
  border-left: 3px solid #6366f1;
}
.criterion-strengths, .criterion-improvements { margin-top: 10px; }
.criterion-strengths h5, .criterion-improvements h5 {
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 6px;
}
.criterion-strengths h5 { color: #059669; }
.criterion-improvements h5 { color: #dc2626; }
.criterion-strengths ul, .criterion-improvements ul {
  margin: 0; padding: 0 0 0 16px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--gray-700);
}

/* ─── CRITERION ACCORDION ────────────────────────────────────────────────── */
.criterion-card-header {
  cursor: pointer;
  user-select: none;
}
.criterion-card-header:hover { opacity: .85; }
.criterion-chevron {
  font-size: 14px;
  color: var(--gray-400);
  transition: transform .2s ease;
  display: inline-block;
}
.criterion-card.collapsed .criterion-chevron { transform: rotate(-90deg); }
.criterion-card.collapsed .criterion-body   { display: none; }
.criterion-card .criterion-card-header { margin-bottom: 0; }
.criterion-card:not(.collapsed) .criterion-card-header { margin-bottom: 12px; }

/* ─── FIX SUMMARY CARD ───────────────────────────────────────────────────── */
.fix-summary-card {
  background: #fefce8;
  border: 1.5px solid #fbbf24;
  border-radius: 14px;
  padding: 20px 22px;
}
[data-theme="dark"] .fix-summary-card {
  background: #2d2507;
  border-color: #b45309;
}
.fix-summary-card h4 {
  font-size: 15px;
  font-weight: 700;
  color: #92400e;
  margin: 0 0 14px;
}
[data-theme="dark"] .fix-summary-card h4 { color: #fcd34d; }
.fix-items { display: flex; flex-direction: column; gap: 10px; }
.fix-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
}
.fix-number {
  flex-shrink: 0;
  width: 24px; height: 24px;
  border-radius: 50%;
  background: #f59e0b;
  color: white;
  font-size: 12px;
  font-weight: 800;
  display: flex; align-items: center; justify-content: center;
}
.fix-content { flex: 1; }
.fix-criterion {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .05em;
  color: #92400e;
  margin-bottom: 2px;
}
[data-theme="dark"] .fix-criterion { color: #fcd34d; }
.fix-text {
  font-size: 13px;
  color: var(--gray-700);
  line-height: 1.55;
}
[data-theme="dark"] .fix-text { color: var(--gray-300); }

/* ─── SENTENCE ANALYSIS ──────────────────────────────────────────────────── */
.sentence-analysis-section { margin: 20px 0; }
.sentence-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 14px;
}
.legend-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 600;
  color: var(--gray-700);
}
.legend-dot {
  width: 12px; height: 12px; border-radius: 3px;
}
.sentence-counts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 16px;
}
.count-badge {
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 700;
}
.highlighted-essay {
  background: white;
  border: 1px solid #e5e7eb;
  border-radius: 10px;
  padding: 18px;
  font-size: 14px;
  line-height: 2.0;
  color: var(--gray-800);
}
/* Sentence type highlights */
.sent-simple { background: rgba(59,130,246,0.22); border-bottom: 2px solid rgba(59,130,246,0.6); border-radius: 3px; padding: 1px 0; }
.sent-compound { background: rgba(16,185,129,0.22); border-bottom: 2px solid rgba(16,185,129,0.6); border-radius: 3px; padding: 1px 0; }
.sent-complex { background: rgba(245,158,11,0.22); border-bottom: 2px solid rgba(245,158,11,0.6); border-radius: 3px; padding: 1px 0; }
.sent-compound-complex { background: rgba(139,92,246,0.22); border-bottom: 2px solid rgba(139,92,246,0.6); border-radius: 3px; padding: 1px 0; }
.sent-uncertain { background: rgba(156,163,175,0.25); border-bottom: 2px solid rgba(156,163,175,0.5); border-radius: 3px; padding: 1px 0; }

/* ─── OVERALL IMPROVEMENTS GRID ──────────────────────────────────────────── */
.overall-improvements-section { margin: 20px 0; }
.improvements-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}
@media (max-width: 900px) { .improvements-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) { .improvements-grid { grid-template-columns: 1fr; } }
.improvement-card {
  background: white;
  border: 1px solid #e5e7eb;
  border-radius: 12px;
  padding: 14px;
}
.improvement-card-title {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: #6366f1;
  margin-bottom: 8px;
}
.improvement-card-text {
  font-size: 13px;
  color: var(--gray-700);
  line-height: 1.6;
}

/* ─── MOBILE LAYOUT (≤768px) ────────────────────────────────────────────── */
@media (max-width: 768px) {
  /* Main fills full width, top pad clears topnav */
  .main-content {
    padding: calc(var(--topnav-height) + 16px) 12px 20px;
  }

  /* Stats: 2 columns on tablet */
  .stats-grid { grid-template-columns: repeat(2, 1fr); }

  /* Task selector: single column */
  .task-selector { grid-template-columns: 1fr; }

  /* Page header font size */
  .page-header h2 { font-size: 18px; }

  /* Test header: wrap */
  .test-header { flex-wrap: wrap; gap: 8px; padding: 10px 12px; }
  .test-header .test-timer { font-size: 18px; }

  /* Test body: stack panels */
  .test-body { flex-direction: column; height: auto; overflow: visible; }
  .test-left {
    min-width: unset !important;
    width: 100% !important;
    max-height: 40vh;
    overflow-y: auto;
    border-right: none;
    border-bottom: 1px solid var(--border, #e5e7eb);
  }
  .test-right { width: 100% !important; overflow-y: auto; }
  .test-resizer { display: none; }

  /* Tables: horizontal scroll */
  .admin-table-wrap, .table-container { overflow-x: auto; -webkit-overflow-scrolling: touch; }
  .admin-table { min-width: 560px; }

  /* Class cards: full width */
  .classes-grid { grid-template-columns: 1fr; }
  .class-card { flex-direction: column; align-items: flex-start; }
  .class-card-actions { align-self: flex-end; }

  /* Attendance modal: full screen */
  .attendance-modal-overlay { padding: 0; align-items: flex-start; }
  .attendance-modal-box {
    width: 100% !important;
    max-width: 100% !important;
    max-height: 100vh !important;
    border-radius: 0;
  }

  /* Class detail header: stack */
  .class-detail-actions { flex-wrap: wrap; }
}

/* ─── SMALL PHONES (≤480px) ─────────────────────────────────────────────── */
@media (max-width: 480px) {
  .stats-grid { grid-template-columns: 1fr; }
  .page-header h2 { font-size: 16px; }
  .card { padding: 12px; }
  .test-left { max-height: 35vh; }

  /* Question navigator: tighter */
  .q-nav-grid { grid-template-columns: repeat(8, 1fr); gap: 4px; }
  .q-nav-grid button { font-size: 11px; padding: 4px 2px; }

  /* Test submit button area */
  .test-header-right { flex-wrap: wrap; justify-content: flex-end; gap: 6px; }

  /* Attendance summary: stack */
  .attendance-summary-row { flex-direction: column; align-items: flex-start; }

  /* Grading modes: already stacks at 480px — verify OK */
}

/* ─── DELETE BUTTON (submission cards) ───────────────────────────────────── */
.btn-delete-submission {
  flex-shrink: 0;
  background: none;
  border: 1.5px solid transparent;
  border-radius: 8px;
  padding: 6px 8px;
  font-size: 16px;
  color: var(--gray-400);
  cursor: pointer;
  transition: all .15s;
  line-height: 1;
  opacity: 0;
}
.submission-card:hover .btn-delete-submission { opacity: 1; }
.btn-delete-submission:hover {
  background: var(--danger-light);
  border-color: #fca5a5;
  color: var(--danger);
}

/* ─── REWRITE CTA (bottom of feedback) ───────────────────────────────────── */
.rewrite-cta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  background: linear-gradient(135deg, #f5f3ff 0%, #ede9fe 100%);
  border: 1.5px solid #c4b5fd;
  border-radius: 14px;
  padding: 20px 24px;
  margin-top: 8px;
}
.rewrite-cta-text {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.rewrite-cta-text strong { font-size: 15px; color: #4c1d95; }
.rewrite-cta-text span { font-size: 13px; color: #6d28d9; line-height: 1.5; }
.btn-rewrite {
  flex-shrink: 0;
  background: linear-gradient(135deg, #7c3aed 0%, #6d28d9 100%);
  color: white;
  border: none;
  border-radius: 24px;
  padding: 10px 20px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all .2s;
  white-space: nowrap;
  box-shadow: 0 2px 8px rgba(109,40,217,.35);
}
.btn-rewrite:hover {
  background: linear-gradient(135deg, #6d28d9 0%, #5b21b6 100%);
  box-shadow: 0 4px 12px rgba(109,40,217,.45);
  transform: translateY(-1px);
}
@media (max-width: 700px) {
  .rewrite-cta { flex-direction: column; align-items: stretch; }
  .btn-rewrite { text-align: center; }
}

/* ─── REWRITE VIEW ────────────────────────────────────────────────────────── */
.rewrite-page-header {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.rewrite-header-left {
  display: flex;
  align-items: center;
  gap: 16px;
}
.rewrite-header-left h2 { margin: 0; }

.rewrite-essay-box {
  background: #f0fdf4;
  border: 1px solid #bbf7d0;
  border-radius: 8px;
  padding: 16px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--gray-700);
  white-space: pre-wrap;
}

.what-changed-section { margin-top: 0; }
.what-changed-list {
  margin: 0;
  padding: 0 0 0 20px;
  font-size: 14px;
  line-height: 1.9;
  color: var(--gray-700);
}
.what-changed-list li { margin-bottom: 6px; }

.band-chip {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  padding: 2px 10px;
  border-radius: 20px;
  background: #d1fae5;
  color: #065f46;
  vertical-align: middle;
  margin-left: 8px;
}

/* ─── Remember Me ─────────────────────────────────────────────────────────── */
.remember-me-row {
  margin-bottom: 4px;
}
.checkbox-label {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  font-size: 14px;
  color: #374151;
  user-select: none;
}
.checkbox-label input[type="checkbox"] {
  width: 16px;
  height: 16px;
  accent-color: #4f46e5;
  cursor: pointer;
}

/* ─── Email Verification Form ────────────────────────────────────────────── */
.verify-info {
  text-align: center;
  margin-bottom: 24px;
}
.verify-icon {
  font-size: 3rem;
  margin-bottom: 12px;
}
.verify-info p {
  color: #6b7280;
  margin: 0 0 4px;
  font-size: 14px;
}
.verify-info strong {
  color: #4f46e5;
  font-size: 15px;
  word-break: break-all;
}
#verify-code {
  text-align: center;
  font-size: 1.8rem;
  font-weight: 700;
  letter-spacing: 0.3em;
  font-family: monospace;
}

/* ─── Admin Panel ─────────────────────────────────────────────────────────── */
.admin-table-wrap {
  overflow-x: auto;
  border-radius: 12px;
  border: 1px solid var(--gray-200);
  background: var(--gray-50);
}
.admin-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}
.admin-table th {
  background: var(--gray-100);
  color: var(--gray-700);
  font-weight: 600;
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--gray-200);
  white-space: nowrap;
}
.admin-table td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--gray-100);
  color: var(--gray-700);
  vertical-align: middle;
}
.admin-table tbody tr:last-child td {
  border-bottom: none;
}
.admin-table tbody tr:hover {
  background: var(--gray-100);
}

/* ─── Assign Batch Toolbar ───────────────────────────────────────────────── */
.assign-batch-toolbar {
  display: flex;
  align-items: center;
  gap: 10px;
  background: #eff6ff;
  border: 1.5px solid #93c5fd;
  border-radius: 10px;
  padding: 10px 16px;
  margin-bottom: 10px;
  font-size: 14px;
  font-weight: 600;
  color: #1e40af;
}
.assign-batch-toolbar.hidden { display: none; }
[data-theme="dark"] .assign-batch-toolbar { background: #1e3a5f; border-color: #1e40af; color: #93c5fd; }
.admin-table .assign-row-cb { cursor: pointer; accent-color: var(--primary); width: 15px; height: 15px; }
.admin-table tr:has(.assign-row-cb:checked) { background: #eff6ff !important; }
[data-theme="dark"] .admin-table tr:has(.assign-row-cb:checked) { background: #1e3a5f !important; }

/* ─── Badges ──────────────────────────────────────────────────────────────── */
.badge {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  padding: 2px 10px;
  border-radius: 20px;
  white-space: nowrap;
}
.badge-green   { background: #d1fae5; color: #065f46; }
.badge-red     { background: #fee2e2; color: #991b1b; }
.badge-purple  { background: #ede9fe; color: #5b21b6; }
.badge-gray    { background: #f3f4f6; color: #374151; }
.badge-teacher { background: #d1fae5; color: #065f46; }

/* ─── Forgot Password link ────────────────────────────────────────────────── */
.forgot-link-row {
  text-align: right;
  margin-bottom: 4px;
  margin-top: -4px;
}
.forgot-link {
  font-size: 13px;
  color: var(--primary);
  text-decoration: none;
}
.forgot-link:hover { text-decoration: underline; }

/* ─── Streak stat card ────────────────────────────────────────────────────── */
.stat-streak-card.streak-active {
  background: linear-gradient(135deg, #fff7ed 0%, #ffedd5 100%);
  border-color: #fb923c;
}
.stat-streak-card.streak-active .stat-streak-value {
  color: #ea580c;
}

/* ─── Target Band Tracker ─────────────────────────────────────────────────── */
.target-band-section {
  background: #fff;
  border: 1px solid var(--gray-200);
  border-radius: 14px;
  padding: 20px 24px;
  margin-bottom: 24px;
}
.target-band-controls {
  display: flex;
  align-items: center;
  gap: 8px;
}
.target-band-controls select {
  padding: 6px 12px;
  border: 1px solid var(--gray-300);
  border-radius: 8px;
  font-size: 14px;
  background: #fff;
  cursor: pointer;
}
.target-band-hint {
  color: var(--gray-500);
  font-size: 14px;
  padding: 8px 0;
}
.target-bar-row {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 10px 0;
}
.target-bar-label {
  width: 70px;
  font-size: 14px;
  font-weight: 600;
  color: var(--gray-700);
  flex-shrink: 0;
}
.target-bar-track {
  flex: 1;
  height: 10px;
  background: var(--gray-100);
  border-radius: 999px;
  overflow: hidden;
}
.target-bar-fill {
  height: 100%;
  background: var(--primary);
  border-radius: 999px;
  transition: width 0.4s ease;
}
.target-bar-meta {
  width: 80px;
  font-size: 13px;
  color: var(--gray-500);
  text-align: right;
  flex-shrink: 0;
}

/* ─── Progress Chart ──────────────────────────────────────────────────────── */
.chart-section {
  background: #fff;
  border: 1px solid var(--gray-200);
  border-radius: 14px;
  padding: 20px 24px;
  margin-top: 24px;
}
.chart-container-dash {
  position: relative;
  height: 200px;
  margin-top: 12px;
}

/* ─── PDF Export ──────────────────────────────────────────────────────────── */
.pdf-export-bar {
  display: flex;
  justify-content: flex-end;
  margin-bottom: 12px;
}

@media print {
  body { background: white !important; }
  .topnav, .topnav-drawer-overlay, .topnav-drawer,
  .btn-back,
  #pdf-btn,
  .pdf-export-bar,
  .rewrite-cta,
  .page-header .btn-back { display: none !important; }
  .main-content { padding: 16px !important; }
  .view { display: block !important; }
  #view-feedback { display: block !important; }
  #view-dashboard,
  #view-submit,
  #view-history,
  #view-admin,
  #view-change-password,
  #view-rewrite { display: none !important; }
  .feedback-section { break-inside: avoid; }
  .criterion-card { break-inside: avoid; }
  .overall-band-display { break-inside: avoid; }
}

/* ─── Task 1 Image Upload ─────────────────────────────────────────────────── */
.image-upload-area {
  border: 2px dashed var(--gray-300);
  border-radius: 12px;
  padding: 28px 20px;
  text-align: center;
  cursor: pointer;
  background: var(--gray-50);
  transition: border-color 0.2s, background 0.2s;
  position: relative;
}
.image-upload-area:hover {
  border-color: var(--primary);
  background: #eef2ff;
}
.image-upload-icon { font-size: 36px; margin-bottom: 8px; }
.image-upload-text { font-size: 14px; font-weight: 600; color: var(--gray-700); margin-bottom: 4px; }
.image-upload-hint { font-size: 12px; color: var(--gray-500); }
.image-upload-area img { display: block; margin: 0 auto; }
.btn-remove-image {
  margin-top: 8px;
  background: none;
  border: none;
  font-size: 13px;
  color: var(--gray-500);
  cursor: pointer;
  padding: 4px 0;
}
.btn-remove-image:hover { color: #dc2626; }

/* ─── Change Password view ────────────────────────────────────────────────── */
.change-password-card {
  background: #fff;
  border: 1px solid var(--gray-200);
  border-radius: 14px;
  padding: 28px 32px;
  max-width: 440px;
}

/* ─── Test Type Tabs (shared by test-list + materials) ───────────────────── */
.test-type-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 20px;
}
.test-tab-btn {
  padding: 8px 20px;
  border-radius: 8px;
  border: 1px solid var(--gray-200);
  background: var(--gray-50);
  color: var(--gray-600);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all .15s;
}
.test-tab-btn.active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}
.test-tab-btn:hover:not(.active) { background: var(--gray-100); }

/* ─── Test Card (list view) ──────────────────────────────────────────────── */
.test-card {
  background: var(--gray-50);
  border: 1px solid var(--gray-200);
  border-radius: 12px;
  padding: 16px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 12px;
}
.test-card-title { font-weight: 600; font-size: 15px; margin-bottom: 4px; }
.test-card-meta { font-size: 13px; color: var(--gray-500); display: flex; align-items: center; gap: 8px; }
.test-card-actions { display: flex; gap: 8px; flex-shrink: 0; }
.band-badge { padding: 2px 8px; border-radius: 6px; font-size: 12px; font-weight: 700; }
.btn-warning { background: var(--warning); color: #fff; border: none; }
.btn-warning:hover:not(:disabled) { background: #b45309; }
.badge-blue { background: #dbeafe; color: #1d4ed8; }
.badge-orange { background: #ffedd5; color: #c2410c; }

/* ─── Test Taking Mode ───────────────────────────────────────────────────── */
#app-screen.test-mode .topnav,
#app-screen.test-mode .topnav-drawer-overlay,
#app-screen.test-mode .topnav-drawer { display: none !important; }
#app-screen.test-mode .main-content { padding: 0 !important; }
#app-screen.test-mode #view-test-taking { display: flex !important; flex-direction: column; height: 100vh; overflow: hidden; }

.test-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 20px;
  background: #fff;
  border-bottom: 1px solid var(--gray-200);
  flex-shrink: 0;
  gap: 16px;
  flex-wrap: wrap;
}
.test-header-left { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.test-header-right { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.test-title-text { font-weight: 700; font-size: 15px; color: var(--gray-800); }
.section-tabs { display: flex; gap: 6px; }
.section-tab-btn {
  padding: 5px 12px;
  border-radius: 6px;
  border: 1px solid var(--gray-200);
  background: #fff;
  font-size: 13px;
  cursor: pointer;
  white-space: nowrap;
}
.section-tab-btn.active { background: var(--primary); color: #fff; border-color: var(--primary); }
.test-timer {
  font-weight: 700;
  font-size: 20px;
  font-variant-numeric: tabular-nums;
  color: var(--gray-700);
  min-width: 60px;
  text-align: right;
}
.timer-warning { color: var(--danger) !important; }

.test-body {
  display: flex;
  flex: 1;
  overflow: hidden;
}
.test-left {
  flex: 1;
  min-width: 280px;
  padding: 24px 32px 80px;
  overflow-y: auto;
  background: #fff;
}
.test-resizer {
  width: 5px;
  flex-shrink: 0;
  background: var(--gray-200);
  cursor: col-resize;
  transition: background .15s;
  position: relative;
}
.test-resizer::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 2px;
  height: 40px;
  border-radius: 2px;
  background: var(--gray-400);
  transition: background .15s;
}
.test-resizer:hover,
.test-resizer.dragging {
  background: var(--gray-300);
}
.test-resizer:hover::after,
.test-resizer.dragging::after {
  background: #16a34a;
}
.test-right {
  width: 440px;
  min-width: 300px;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background: #fff;
  border-left: 1px solid var(--gray-200);
}

/* Passage */
.passage-title { font-weight: 700; font-size: 17px; margin-bottom: 16px; color: var(--gray-900); }
.passage-text { font-size: 15px; line-height: 1.9; color: var(--gray-800); font-family: Georgia, serif; }
.passage-text p { margin-bottom: 14px; }
.audio-player-container { background: var(--gray-50); border: 1px solid var(--gray-200); border-radius: 10px; padding: 16px; margin-bottom: 16px; }
.audio-label { font-weight: 600; margin-bottom: 8px; font-size: 14px; }
.audio-player { width: 100%; margin-top: 8px; }
.audio-missing { color: var(--gray-400); font-style: italic; margin: 20px 0; }
.transcript-details { margin-top: 12px; }
.transcript-details summary { cursor: pointer; font-size: 14px; color: var(--primary); font-weight: 500; margin-bottom: 8px; }
.transcript-text { font-size: 14px; line-height: 1.7; color: var(--gray-600); background: var(--gray-50); border-radius: 8px; padding: 12px; }

/* Bottom question-number nav bar */
.test-q-nav-bar {
  display: none;
  position: fixed;
  bottom: 0; left: 0; right: 0;
  background: #fff;
  border-top: 2px solid var(--gray-200);
  padding: 10px 24px;
  justify-content: center;
  align-items: center;
  z-index: 200;
  box-shadow: 0 -2px 8px rgba(0,0,0,.06);
}
#app-screen.test-mode .test-q-nav-bar { display: flex; }
.q-nav-grid { display: flex; flex-wrap: wrap; gap: 5px; justify-content: center; }
.q-nav-btn {
  width: 34px; height: 34px;
  border-radius: 4px;
  border: 1.5px solid #16a34a;
  background: #fff;
  font-size: 12px;
  font-weight: 600;
  color: #166534;
  cursor: pointer;
  transition: background .15s, color .15s;
}
.q-nav-btn.answered { background: #16a34a; color: #fff; border-color: #16a34a; }
.q-nav-btn:hover:not(.answered) { background: #f0fdf4; }

/* Questions container */
#test-questions-container {
  flex: 1;
  overflow-y: auto;
  padding: 0 0 80px;
}

/* Question group header */
.q-group { margin-bottom: 4px; }
.q-group-header {
  padding: 18px 20px 12px;
  border-bottom: 1px solid var(--gray-100);
}
.q-group-title { font-weight: 700; font-size: 15px; color: var(--gray-900); margin-bottom: 6px; }
.q-group-desc { font-size: 13px; color: var(--gray-600); line-height: 1.55; }
.q-group-body { padding: 4px 0; }

/* Individual question blocks */
.question-block {
  padding: 12px 20px;
  border-bottom: 1px solid var(--gray-100);
}
.question-block:last-child { border-bottom: none; }

/* Q number circle (green badge) */
.q-num-circle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px; height: 26px;
  border-radius: 50%;
  background: #16a34a;
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  flex-shrink: 0;
  vertical-align: middle;
  margin-right: 6px;
}

/* TFNG row: [circle] [select] [statement] */
.tfng-row {
  display: flex;
  align-items: flex-start;
  gap: 10px;
}
.tfng-row .q-num-circle { margin-top: 3px; margin-right: 0; }
.tfng-select {
  flex-shrink: 0;
  border: 1px solid var(--gray-300);
  border-radius: 6px;
  padding: 5px 10px;
  font-size: 13px;
  font-weight: 500;
  background: #fff;
  cursor: pointer;
  min-width: 128px;
  color: var(--gray-700);
  margin-top: 1px;
}
.tfng-select:focus { outline: none; border-color: #16a34a; box-shadow: 0 0 0 2px rgba(22,163,74,.15); }
.tfng-statement { font-size: 14px; color: var(--gray-700); line-height: 1.55; padding-top: 3px; }

/* MCQ / fill / matching */
.q-stem { font-size: 14px; color: var(--gray-700); margin-bottom: 10px; line-height: 1.55; }
.q-inputs { display: flex; flex-direction: column; gap: 6px; padding-left: 32px; }
.q-option { display: flex; align-items: flex-start; gap: 8px; font-size: 14px; cursor: pointer; padding: 4px 0; }
.q-option input { margin-top: 3px; flex-shrink: 0; accent-color: #16a34a; }
.q-fill-input {
  border: 1.5px solid var(--gray-300);
  border-radius: 6px;
  padding: 5px 10px;
  font-size: 14px;
  width: 160px;
  background: #fff;
  vertical-align: middle;
  margin: 0 4px;
  transition: border-color .15s;
}
.q-fill-input:focus { outline: none; border-color: #16a34a; box-shadow: 0 0 0 2px rgba(22,163,74,.15); }
.matching-row { display: flex; align-items: center; gap: 10px; margin-bottom: 8px; padding-left: 32px; }
.matching-label { font-size: 14px; font-weight: 500; min-width: 90px; color: var(--gray-700); }
.matching-row select { border: 1px solid var(--gray-300); border-radius: 6px; padding: 5px 8px; font-size: 13px; }

/* ─── Test Result View ───────────────────────────────────────────────────── */
.result-score-card {
  background: var(--gray-50);
  border: 1px solid var(--gray-200);
  border-radius: 16px;
  padding: 28px;
  text-align: center;
  display: inline-block;
  margin-bottom: 24px;
}
.result-band { font-size: 56px; font-weight: 800; line-height: 1; }
.result-band-label { font-size: 14px; color: var(--gray-500); margin: 4px 0 8px; }
.result-raw { font-size: 18px; font-weight: 600; color: var(--gray-700); }
.result-sections { background: var(--gray-50); border: 1px solid var(--gray-200); border-radius: 12px; padding: 20px; margin-bottom: 20px; }
.result-sections h3 { font-size: 15px; font-weight: 700; margin-bottom: 12px; }
.result-section-row { display: flex; justify-content: space-between; padding: 8px 0; border-bottom: 1px solid var(--gray-100); font-size: 14px; }
.result-section-row:last-child { border-bottom: none; }
.result-review { margin-top: 20px; }
.result-review h3 { font-size: 15px; font-weight: 700; margin-bottom: 12px; }
.expl-loading-note { background: #fffbeb; border: 1px solid #fde68a; border-radius: 8px; padding: 10px 14px; font-size: 13px; color: #92400e; margin-bottom: 12px; }
.question-result { padding: 14px 16px; border-radius: 10px; margin-bottom: 10px; border-left: 4px solid transparent; }
.question-result.correct { background: #f0fdf4; border-color: #4ade80; }
.question-result.wrong { background: #fef2f2; border-color: #f87171; }
.q-result-header { font-size: 14px; font-weight: 600; margin-bottom: 6px; }
.q-result-answer { font-size: 13px; color: var(--gray-600); }
.correct-answer { margin-left: 10px; color: var(--success); font-weight: 600; }
.ai-explanation-box { margin-top: 8px; background: #f0f9ff; border-radius: 6px; padding: 8px 12px; font-size: 13px; color: #0369a1; }

/* ─── Admin Materials ────────────────────────────────────────────────────── */
.materials-list { margin-bottom: 20px; }
.materials-item {
  background: var(--gray-50);
  border: 1px solid var(--gray-200);
  border-radius: 10px;
  padding: 14px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 8px;
}
.materials-item-info { display: flex; flex-direction: column; gap: 4px; }
.materials-meta { font-size: 12px; color: var(--gray-400); }
.materials-create-section { margin-top: 24px; }
.materials-create-section > .btn { margin-bottom: 16px; }
.materials-form-card {
  background: #fff;
  border: 1px solid var(--gray-200);
  border-radius: 14px;
  padding: 24px;
  margin-top: 12px;
}
.section-form-block {
  border: 1px solid var(--gray-200);
  border-radius: 10px;
  padding: 16px;
  margin-bottom: 16px;
  background: var(--gray-50);
}
.section-form-header { margin-bottom: 12px; }
.section-form-header h4 { font-size: 14px; font-weight: 700; color: var(--gray-700); }
.question-builder-row {
  background: var(--gray-50);
  border: 1px solid var(--gray-200);
  border-radius: 8px;
  padding: 12px;
  margin-bottom: 10px;
}
.qb-header { display: flex; align-items: center; gap: 8px; margin-bottom: 10px; flex-wrap: wrap; }
.qb-num { font-weight: 700; font-size: 13px; color: var(--gray-500); }
.qb-num-input { width: 60px; border: 1px solid var(--gray-200); border-radius: 6px; padding: 5px 8px; font-size: 13px; }
.qb-header select { border: 1px solid var(--gray-200); border-radius: 6px; padding: 5px 8px; font-size: 13px; }
.qb-options { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-bottom: 10px; }
.qb-opt-row { display: flex; align-items: center; gap: 6px; font-size: 13px; }
.qb-opt-row input { flex: 1; border: 1px solid var(--gray-200); border-radius: 6px; padding: 5px 8px; font-size: 13px; }
.questions-list { margin-bottom: 10px; }
.form-row-end { display: flex; justify-content: flex-end; gap: 10px; margin-top: 16px; }

/* ─── Materials: Action Tabs (Create / Import) ───────────────────────────── */
.materials-action-tabs {
  display: flex;
  gap: 6px;
  margin-bottom: 16px;
  border-bottom: 2px solid var(--gray-200);
  padding-bottom: 0;
}
.materials-action-tab {
  padding: 9px 18px;
  border: none;
  border-bottom: 3px solid transparent;
  margin-bottom: -2px;
  background: transparent;
  color: var(--gray-500);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: color .15s, border-color .15s;
  border-radius: 0;
}
.materials-action-tab:hover { color: var(--gray-800); }
.materials-action-tab.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
  font-weight: 600;
}
.materials-action-panel { }

/* ─── Task 1 Topics Admin Panel ─────────────────────────────────────────── */
#task1-topics-panel { margin-top: 0; }
.t1-image-upload-area {
  border: 2px dashed var(--gray-300);
  border-radius: 10px;
  padding: 24px;
  text-align: center;
  background: var(--gray-50);
  cursor: pointer;
  transition: border-color .2s;
  margin-bottom: 10px;
}
.t1-image-upload-area:hover { border-color: var(--primary); }
.t1-image-upload-area input[type="file"] { display: none; }
.t1-image-upload-label {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  color: var(--gray-500);
  font-size: 14px;
}
.t1-image-upload-label span.upload-icon { font-size: 32px; }
#t1-image-preview {
  max-width: 100%;
  max-height: 200px;
  object-fit: contain;
  border-radius: 8px;
  margin-top: 8px;
}
.t1-group { margin-top: 24px; }
.t1-group-header {
  font-size: 14px;
  font-weight: 700;
  color: var(--gray-700);
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.t1-topics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 12px;
}
.t1-topic-card {
  background: #fff;
  border: 1px solid var(--gray-200);
  border-radius: 10px;
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.t1-topic-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
}
.t1-topic-label { font-weight: 600; font-size: 13px; color: var(--gray-800); }
.t1-topic-date { font-size: 11px; color: var(--gray-400); white-space: nowrap; }
.t1-topic-preview {
  font-size: 12px;
  color: var(--gray-500);
  margin: 0;
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
[data-theme="dark"] .t1-topic-card { background: #1e293b; border-color: #334155; }
[data-theme="dark"] .t1-image-upload-area { background: #1e293b; border-color: #475569; }
.t1-topic-actions { display: flex; gap: 6px; margin-top: 4px; }
.t1-edit-panel { margin-top: 10px; border-top: 1px solid var(--gray-200); padding-top: 12px; }
.t1-edit-form { display: flex; flex-direction: column; gap: 10px; }
[data-theme="dark"] .t1-edit-panel { border-color: #334155; }

/* ─── Import JSON Panel ──────────────────────────────────────────────────── */
.import-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 16px;
}
.import-title { font-size: 15px; font-weight: 700; margin-bottom: 4px; }
.import-subtitle { font-size: 13px; color: var(--gray-500); }
.import-template-link { color: var(--primary); text-decoration: none; font-weight: 500; }
.import-template-link:hover { text-decoration: underline; }
.import-textarea {
  width: 100%;
  font-family: 'Courier New', Consolas, monospace;
  font-size: 13px;
  line-height: 1.6;
  border: 1px solid var(--gray-200);
  border-radius: 8px;
  padding: 12px 14px;
  background: var(--gray-50);
  color: var(--gray-800);
  resize: vertical;
  min-height: 280px;
}
.import-textarea:focus { outline: none; border-color: var(--primary); background: #fff; box-shadow: 0 0 0 2px rgba(79,70,229,.12); }
.import-validation-ok {
  background: #f0fdf4;
  border: 1px solid #86efac;
  border-radius: 8px;
  padding: 10px 14px;
  font-size: 13px;
  color: #166534;
  margin-bottom: 12px;
}
.import-validation-error {
  background: var(--danger-light);
  border: 1px solid #fca5a5;
  border-radius: 8px;
  padding: 10px 14px;
  font-size: 13px;
  color: var(--danger);
  margin-bottom: 12px;
}
.import-validation-error ul { margin: 6px 0 0 16px; line-height: 1.8; }
#import-validation-result { margin-bottom: 4px; }

/* ─── Homework / Assignment Cards ─────────────────────────────────────────── */
.hw-section-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--gray-600);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin: 24px 0 12px;
}
.hw-section-title:first-child { margin-top: 0; }
.hw-overdue-title { color: var(--danger); }

.hw-card {
  background: #fff;
  border: 1px solid var(--gray-200);
  border-radius: 12px;
  padding: 18px 20px;
  margin-bottom: 12px;
  transition: box-shadow .15s;
}
.hw-card:hover { box-shadow: 0 2px 8px rgba(0,0,0,.06); }
.hw-card-overdue {
  border-left: 4px solid var(--danger);
  background: #fff5f5;
}
.hw-card-done {
  opacity: 0.7;
  background: #f8fffe;
  border-color: #a7f3d0;
}

.hw-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 8px;
  flex-wrap: wrap;
}
.hw-card-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--gray-900);
  margin: 0 0 6px;
}
.hw-card-desc {
  font-size: 0.875rem;
  color: var(--gray-500);
  margin: 0 0 6px;
  line-height: 1.5;
}
.hw-card-test {
  font-size: 0.8rem;
  color: var(--gray-500);
  margin: 0 0 10px;
}
.hw-card-actions { display: flex; gap: 8px; margin-top: 12px; }

.hw-type-badge {
  display: inline-block;
  background: var(--primary-light);
  color: var(--primary);
  border-radius: 6px;
  padding: 2px 8px;
  font-size: 0.78rem;
  font-weight: 600;
  margin-right: 6px;
}
.hw-badge {
  display: inline-block;
  border-radius: 6px;
  padding: 2px 8px;
  font-size: 0.78rem;
  font-weight: 600;
}
.hw-badge-pending { background: #fef3c7; color: #92400e; }
.hw-badge-overdue { background: #fee2e2; color: #991b1b; }
.hw-badge-done    { background: #d1fae5; color: #065f46; }

.hw-deadline {
  font-size: 0.8rem;
  color: var(--gray-500);
  white-space: nowrap;
  padding-top: 2px;
}

/* Admin assignment table */
.text-danger { color: var(--danger); }

/* ─── Topic Quality Rater ─────────────────────────────────────────────────── */
.rater-card {
  background: var(--gray-50);
  border: 1px solid var(--gray-200);
  border-radius: 12px;
  padding: 28px;
  max-width: 800px;
}
.rater-result-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 20px;
}
@media (max-width: 600px) { .rater-result-grid { grid-template-columns: 1fr; } }

.rater-result-card {
  background: var(--gray-50);
  border: 1px solid var(--gray-200);
  border-radius: 10px;
  padding: 16px;
}
.rater-result-label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--gray-500);
  margin-bottom: 4px;
}
.rater-score {
  font-size: 1.6rem;
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: 8px;
}
.rater-bar-track {
  height: 6px;
  background: var(--gray-200);
  border-radius: 3px;
  margin-bottom: 8px;
  overflow: hidden;
}
.rater-bar-fill {
  height: 100%;
  border-radius: 3px;
  transition: width .4s ease;
}
.rater-comment {
  font-size: 0.83rem;
  color: var(--gray-600);
  line-height: 1.5;
}
.rater-overall {
  background: var(--primary-light);
  border-radius: 8px;
  padding: 12px 16px;
  font-size: 0.9rem;
  color: var(--gray-700);
  margin-bottom: 16px;
}
.rater-improvements {
  font-size: 0.875rem;
  color: var(--gray-700);
  margin-bottom: 12px;
}
.rater-improvements ul { margin: 8px 0 0 18px; line-height: 1.8; }
.rater-cost {
  font-size: 0.75rem;
  color: var(--gray-400);
  text-align: right;
  margin-top: 8px;
}

/* ─── Utility ─────────────────────────────────────────────────────────────── */
.mb-4 { margin-bottom: 24px; }
.form-row { display: flex; gap: 16px; flex-wrap: wrap; }
.form-row .form-group { flex: 1; min-width: 160px; }
.card {
  background: #fff;
  border: 1px solid var(--gray-200);
  border-radius: 12px;
  padding: 24px;
  box-shadow: 0 1px 3px rgba(0,0,0,.06), 0 4px 12px rgba(0,0,0,.06);
}

/* ─── Admin Cost Breakdown ────────────────────────────────────────────────── */
.admin-cost-section {
  background: var(--gray-50);
  border: 1px solid var(--gray-200);
  border-radius: 12px;
  padding: 20px 24px;
  margin-bottom: 28px;
}
.admin-cost-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
  font-weight: 600;
  font-size: 15px;
  color: var(--gray-800);
}
.cost-summary-row {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
  align-items: center;
  margin-bottom: 20px;
}
.cost-summary-item {
  display: flex;
  flex-direction: column;
  min-width: 120px;
}
.cost-val {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--gray-800);
  line-height: 1.2;
}
.cost-lbl {
  font-size: 12px;
  color: var(--gray-500);
  margin-top: 2px;
}
.cost-balance-bar {
  height: 8px;
  background: var(--gray-200);
  border-radius: 99px;
  overflow: hidden;
  margin-bottom: 4px;
}
.cost-balance-fill {
  height: 100%;
  background: linear-gradient(90deg, #16a34a, #22c55e);
  border-radius: 99px;
  transition: width 0.5s;
}
.cost-tables-row {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}
.cost-table-wrap {
  flex: 1;
  min-width: 260px;
}
.cost-table-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--gray-700);
  margin-bottom: 8px;
}
.cost-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
.cost-table th {
  text-align: left;
  padding: 6px 10px;
  background: var(--gray-50);
  border-bottom: 1px solid var(--gray-200);
  color: var(--gray-600);
  font-weight: 600;
}
.cost-table td {
  padding: 7px 10px;
  border-bottom: 1px solid var(--gray-100);
  color: var(--gray-700);
}
.cost-table tr:last-child td { border-bottom: none; }

/* ─── Student History View ───────────────────────────────────────────────── */
.student-history-card {
  background: #fff;
  border: 1px solid var(--gray-200);
  border-radius: 10px;
  padding: 16px 20px;
  margin-bottom: 16px;
}
.student-history-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 10px;
}
.student-history-prompt {
  font-size: 13px;
  color: var(--gray-600);
  margin-bottom: 10px;
  line-height: 1.5;
}
.essay-text-box {
  background: var(--gray-50);
  border: 1px solid var(--gray-200);
  border-radius: 8px;
  padding: 14px 16px;
  font-size: 13.5px;
  line-height: 1.8;
  white-space: pre-wrap;
  word-break: break-word;
  max-height: 400px;
  overflow-y: auto;
  margin: 10px 0;
  color: var(--gray-800);
}
.student-history-feedback {
  font-size: 13px;
  color: var(--gray-500);
  border-top: 1px solid var(--gray-100);
  padding-top: 10px;
  margin-top: 8px;
}

/* ─── Per-Student Assignment Selector ────────────────────────────────────── */
.assign-students-wrap {
  border: 1px solid var(--gray-200);
  border-radius: 8px;
  padding: 10px 14px;
  background: var(--gray-50);
}
.assign-all-label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 500;
  color: var(--gray-700);
  cursor: pointer;
  user-select: none;
}
.assign-students-list {
  margin-top: 10px;
  max-height: 200px;
  overflow-y: auto;
  border-top: 1px solid var(--gray-200);
  padding-top: 8px;
}
.assign-student-row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 5px 0;
  font-size: 13.5px;
  color: var(--gray-700);
  cursor: pointer;
}
.assign-student-row:hover { color: var(--gray-900); }
.assign-student-row input[type="checkbox"] { margin: 0; }
.form-hint {
  font-size: 12px;
  color: var(--gray-400);
}
.badge-blue {
  background: #dbeafe;
  color: #1d4ed8;
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 99px;
  font-weight: 500;
}
.badge-ontime {
  display: inline-block;
  background: #dcfce7;
  color: #15803d;
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 99px;
  font-weight: 500;
  margin: 1px 0;
}
.badge-late {
  display: inline-block;
  background: #fef2f2;
  color: #dc2626;
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 99px;
  font-weight: 500;
  margin: 1px 0;
}

/* ─── BALANCE SYNC ───────────────────────────────────────────────────────── */
.balance-sync-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 10px;
  padding: 10px 14px;
  background: var(--gray-50);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  flex-wrap: wrap;
}
.balance-sync-label {
  font-size: 13px;
  color: var(--gray-600);
  white-space: nowrap;
}
.balance-input {
  width: 110px;
  padding: 5px 10px;
  font-size: 13px;
  border: 1px solid var(--gray-300);
  border-radius: 6px;
  outline: none;
  transition: border-color .15s;
}
.balance-input:focus { border-color: var(--primary); }
.btn-xs {
  padding: 5px 12px;
  font-size: 12px;
}
.balance-link {
  font-size: 12px;
  color: var(--primary-dark);
  text-decoration: none;
  white-space: nowrap;
  opacity: .85;
}
.balance-link:hover { opacity: 1; text-decoration: underline; }

/* ═══════════════════════════════════════════════════════════════════════════
   DARK MODE
   ═══════════════════════════════════════════════════════════════════════════ */
[data-theme="dark"] {
  --body-bg: #0f172a;
  --gray-50: #1e293b;
  --gray-100: #1e293b;
  --gray-200: #334155;
  --gray-300: #475569;
  --gray-400: #94a3b8;
  --gray-500: #94a3b8;
  --gray-600: #cbd5e1;
  --gray-700: #e2e8f0;
  --gray-800: #f1f5f9;
  --gray-900: #f8fafc;
  --shadow: 0 1px 3px rgba(0,0,0,.4);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,.4);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,.5);
}

[data-theme="dark"] body { background: var(--body-bg); color: var(--gray-800); }

/* Cards & panels */
[data-theme="dark"] .card,
[data-theme="dark"] .feedback-section,
[data-theme="dark"] .stat-card,
[data-theme="dark"] .hw-card,
[data-theme="dark"] .criterion-card,
[data-theme="dark"] .target-band-section,
[data-theme="dark"] .materials-form-card,
[data-theme="dark"] .submit-right,
[data-theme="dark"] .submit-form,
[data-theme="dark"] .submission-card,
[data-theme="dark"] .hint-panel,
[data-theme="dark"] .rater-card,
[data-theme="dark"] .result-score-card,
[data-theme="dark"] .result-sections,
[data-theme="dark"] .materials-item,
[data-theme="dark"] .question-builder-row,
[data-theme="dark"] .band-item { background: #1e293b; border-color: #334155; }

/* Inputs */
[data-theme="dark"] input,
[data-theme="dark"] textarea,
[data-theme="dark"] select { background: #0f172a; border-color: #475569; color: var(--gray-800); }

/* Layout */
[data-theme="dark"] .topnav { background: #020617; border-bottom-color: rgba(255,255,255,.06); }
[data-theme="dark"] .tnav-dropdown { background: #020617; border-color: rgba(255,255,255,.08); }
[data-theme="dark"] .topnav-drawer { background: #020617; }
[data-theme="dark"] .main-content { background: var(--body-bg); }

/* Text — headings & labels */
[data-theme="dark"] .page-header h2,
[data-theme="dark"] .page-header p,
[data-theme="dark"] .section-header h3,
[data-theme="dark"] .form-group label,
[data-theme="dark"] .task-option-title,
[data-theme="dark"] .import-title,
[data-theme="dark"] .result-sections h3,
[data-theme="dark"] .result-review h3,
[data-theme="dark"] .feedback-section h3,
[data-theme="dark"] .criterion-card h4,
[data-theme="dark"] .section-form-header h4,
[data-theme="dark"] .t1-group-header { color: var(--gray-900); }

[data-theme="dark"] .task-option-desc,
[data-theme="dark"] .feedback-text,
[data-theme="dark"] .hint-panel-body,
[data-theme="dark"] .result-raw,
[data-theme="dark"] .result-section-row,
[data-theme="dark"] .q-result-header,
[data-theme="dark"] .q-result-answer,
[data-theme="dark"] .matching-label,
[data-theme="dark"] .import-subtitle,
[data-theme="dark"] .band-item-label,
[data-theme="dark"] .stat-label,
[data-theme="dark"] .materials-meta,
[data-theme="dark"] .t1-topic-label,
[data-theme="dark"] .t1-topic-preview,
[data-theme="dark"] .t1-topic-date { color: var(--gray-700); }

/* Task type selector cards */
[data-theme="dark"] .task-option-card { background: #1e293b; border-color: #334155; }
[data-theme="dark"] .task-option-card:hover { background: #1e3a5f; border-color: var(--primary); }
[data-theme="dark"] .task-option input:checked + .task-option-card { background: #1e3a5f; border-color: var(--primary); }

/* Topic chips */
[data-theme="dark"] .topic-chip { background: #1e293b; border-color: #475569; color: var(--gray-700); }
[data-theme="dark"] .topic-chip:hover { border-color: var(--primary); color: var(--primary); }
[data-theme="dark"] .topic-chip.active { background: var(--primary); color: #fff; border-color: var(--primary); }

/* Tab buttons */
[data-theme="dark"] .test-tab-btn { background: #1e293b; border-color: #334155; color: var(--gray-700); }
[data-theme="dark"] .test-tab-btn:hover:not(.active) { background: #334155; }
[data-theme="dark"] .test-tab-btn.active { background: var(--primary); color: #fff; border-color: var(--primary); }
[data-theme="dark"] .materials-action-tab { color: var(--gray-600); }
[data-theme="dark"] .materials-action-tab.active { color: var(--primary); }

/* Chart container */
[data-theme="dark"] .chart-container { background: #1e293b; border-color: #334155; }

/* Word count badge */
[data-theme="dark"] .word-count-badge { background: #334155; color: var(--gray-700); }

/* Section form block (materials create) */
[data-theme="dark"] .section-form-block { background: #0f172a; border-color: #334155; }

/* Test result question blocks */
[data-theme="dark"] .question-result.correct { background: #052e16; border-color: #4ade80; }
[data-theme="dark"] .question-result.wrong { background: #2d0a0a; border-color: #f87171; }
[data-theme="dark"] .ai-explanation-box { background: #0c2340; color: #7dd3fc; }
[data-theme="dark"] .expl-loading-note { background: #1c1400; border-color: #854d0e; color: #fde68a; }

/* Overall band display */
[data-theme="dark"] .overall-band-display { background: #1e293b; }
[data-theme="dark"] .rewrite-essay-box { background: #1e293b; border-color: #334155; color: var(--gray-800); }
[data-theme="dark"] .grading-notice { background: #1e293b; }
[data-theme="dark"] .recent-sub-card { background: #1e293b; border-color: #334155; }
[data-theme="dark"] .test-card { background: #1e293b; border-color: #334155; }
[data-theme="dark"] .test-left,
[data-theme="dark"] .test-right { background: #1e293b; border-color: #334155; }
[data-theme="dark"] .q-nav-btn { background: #334155; color: var(--gray-800); }
[data-theme="dark"] .q-nav-btn.answered { background: #064e3b; }
[data-theme="dark"] .table-container table th { background: #1e293b; }
[data-theme="dark"] .table-container table td { color: var(--gray-700); }
[data-theme="dark"] .auth-box { background: #1e293b; color: var(--gray-800); }
[data-theme="dark"] .modal-box,
[data-theme="dark"] .flashcard-modal-box { background: #1e293b; border-color: #334155; }
[data-theme="dark"] .writing-timer-bar { background: #1e293b; border-color: #334155; }
[data-theme="dark"] .draft-restore-banner { background: #1e293b; border-color: #334155; }
[data-theme="dark"] .btn-dark-mode { color: #fbbf24; }

/* Admin panel & misc */
[data-theme="dark"] .badge-teacher { background: #064e3b; color: #6ee7b7; }
[data-theme="dark"] .btn-teacher { background: #064e3b; color: #6ee7b7; border-color: #065f46; }
[data-theme="dark"] .btn-teacher:hover { background: #065f46; }
[data-theme="dark"] .admin-table-wrap { background: #1e293b; border-color: #334155; }
[data-theme="dark"] .admin-table thead th { background: #0f172a; color: var(--gray-400); border-color: #334155; }
[data-theme="dark"] .admin-table tbody td { color: var(--gray-300); border-color: #334155; }
[data-theme="dark"] .admin-table tbody tr:hover { background: #0f172a; }
[data-theme="dark"] .admin-table tbody tr:hover td { background: transparent; }
[data-theme="dark"] .admin-cost-section { background: #1e293b; border-color: #334155; }
[data-theme="dark"] .budget-bar { background: linear-gradient(135deg, #0c1a2e 0%, #0d2340 100%); border-color: #1e4a7a; color: #7dd3fc; }
[data-theme="dark"] #budget-essays { color: #38bdf8; }
[data-theme="dark"] .target-bar-track { background: #334155; }
[data-theme="dark"] .rater-result-card { background: #0f172a; border-color: #334155; }
[data-theme="dark"] .passage-text { color: var(--gray-800); }
[data-theme="dark"] .hw-section-title { color: var(--gray-900); }
[data-theme="dark"] .hint-card { background: #1e293b; border-color: #334155; }
[data-theme="dark"] .hint-card-header { background: #0f172a; border-color: #334155; color: var(--gray-700); }
[data-theme="dark"] .hint-card-body { color: var(--gray-800); }
[data-theme="dark"] .hints-section-title { color: var(--gray-700); }

/* ═══════════════════════════════════════════════════════════════════════════
   WRITING TIMER
   ═══════════════════════════════════════════════════════════════════════════ */
.writing-timer-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  padding: 10px 16px;
  background: var(--gray-50);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  margin-bottom: 16px;
}
.writing-timer-presets { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.timer-label { font-size: 13px; font-weight: 600; color: var(--gray-600); white-space: nowrap; }
.writing-timer-controls { display: flex; align-items: center; gap: 10px; margin-left: auto; }
.writing-timer-display {
  font-size: 22px;
  font-weight: 700;
  color: var(--primary-dark);
  letter-spacing: 2px;
  min-width: 70px;
  text-align: center;
  font-variant-numeric: tabular-nums;
}
.writing-timer-display.timer-warning { color: var(--danger); animation: pulse 1s infinite; }
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: .6; } }

/* ═══════════════════════════════════════════════════════════════════════════
   DRAFT RESTORE BANNER
   ═══════════════════════════════════════════════════════════════════════════ */
.draft-restore-banner {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  padding: 10px 16px;
  background: var(--primary-light);
  border: 1px solid var(--primary);
  border-radius: var(--radius);
  margin-bottom: 12px;
  font-size: 13px;
  color: var(--gray-700);
}
.draft-restore-banner button { margin: 0; }

/* Save Draft button */
.btn-save-draft {
  font-size: .78rem;
  padding: 4px 12px;
  border: 1px solid var(--gray-400);
  border-radius: 12px;
  background: transparent;
  color: var(--gray-600);
  cursor: pointer;
  transition: all .15s;
  white-space: nowrap;
}
.btn-save-draft:hover { border-color: var(--primary); color: var(--primary); background: var(--primary-light); }

/* Toast notification */
#draft-toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: #1e293b;
  color: #f8fafc;
  padding: 10px 22px;
  border-radius: 24px;
  font-size: .85rem;
  font-weight: 600;
  opacity: 0;
  pointer-events: none;
  transition: opacity .2s, transform .2s;
  z-index: 9999;
}
#draft-toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ═══════════════════════════════════════════════════════════════════════════
   RADAR CHART (feedback view)
   ═══════════════════════════════════════════════════════════════════════════ */
.radar-chart-section {
  margin-bottom: 24px;
}
.radar-chart-container {
  max-width: 320px;
  margin: 0 auto;
  padding: 16px;
  background: var(--gray-50);
  border-radius: var(--radius);
  border: 1px solid var(--gray-200);
}

/* ═══════════════════════════════════════════════════════════════════════════
   RETRY GRADING BUTTON
   ═══════════════════════════════════════════════════════════════════════════ */
.retry-grade-bar {
  margin: 16px 0;
}
.retry-grade-bar .btn { gap: 6px; }

/* ═══════════════════════════════════════════════════════════════════════════
   HOMEWORK COUNTDOWN BADGES
   ═══════════════════════════════════════════════════════════════════════════ */
.hw-countdown {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
}
.hw-countdown-safe { background: #dcfce7; color: #15803d; }
.hw-countdown-warn { background: #fef3c7; color: #92400e; }
.hw-countdown-urgent { background: #fee2e2; color: #b91c1c; }
.hw-countdown-overdue { background: var(--gray-200); color: var(--gray-600); }
.hw-countdown-done { background: #dcfce7; color: #15803d; }

/* ═══════════════════════════════════════════════════════════════════════════
   INLINE ESSAY DIFF (rewrite view)
   ═══════════════════════════════════════════════════════════════════════════ */
.diff-toggle-bar {
  display: flex;
  gap: 8px;
  align-items: center;
  margin-bottom: 12px;
}
.diff-toggle-bar .diff-label { font-size: 13px; color: var(--gray-500); }
.essay-diff-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 16px;
}
.essay-diff-panel { }
.essay-diff-panel h4 {
  font-size: 13px;
  font-weight: 600;
  color: var(--gray-500);
  text-transform: uppercase;
  letter-spacing: .5px;
  margin-bottom: 8px;
}
.diff-original, .diff-rewritten {
  background: var(--gray-50);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  padding: 14px;
  font-size: 14px;
  line-height: 1.8;
  white-space: pre-wrap;
  word-break: break-word;
}
.diff-added { background: #bbf7d0; border-radius: 2px; }
.diff-removed { background: #fecaca; border-radius: 2px; text-decoration: line-through; }
/* LCS diff: ins = rewritten additions, del = original deletions */
.rewrite-diff-view ins { background: #d1fae5; color: #065f46; text-decoration: none; border-radius: 2px; padding: 0 2px; }
.rewrite-diff-view del { background: #fee2e2; color: #991b1b; text-decoration: line-through; border-radius: 2px; padding: 0 2px; }
[data-theme="dark"] .rewrite-diff-view ins { background: #064e3b; color: #6ee7b7; }
[data-theme="dark"] .rewrite-diff-view del { background: #450a0a; color: #fca5a5; }
@media (max-width: 700px) {
  .essay-diff-container { grid-template-columns: 1fr; }
}

/* ═══════════════════════════════════════════════════════════════════════════
   VOCABULARY FLASHCARD MODAL
   ═══════════════════════════════════════════════════════════════════════════ */
.flashcard-modal-box {
  background: #fff;
  border-radius: 16px;
  box-shadow: var(--shadow-lg);
  width: 100%;
  max-width: 460px;
  padding: 28px;
  position: relative;
}
.flashcard-modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}
.flashcard-modal-header h3 { font-size: 18px; font-weight: 700; }
.flashcard-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
  font-size: 14px;
  color: var(--gray-500);
}
/* 3D flip card */
.flashcard-scene {
  perspective: 800px;
  cursor: pointer;
  height: 200px;
  margin-bottom: 16px;
}
.flashcard-card {
  width: 100%;
  height: 100%;
  position: relative;
  transform-style: preserve-3d;
  transition: transform .55s cubic-bezier(0.4, 0, 0.2, 1);
}
.flashcard-card.flipped { transform: rotateY(180deg); }
.flashcard-face {
  position: absolute;
  width: 100%;
  height: 100%;
  backface-visibility: hidden;
  border-radius: 12px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 24px;
  text-align: center;
}
.flashcard-front {
  background: var(--primary-light);
  border: 2px solid var(--primary);
}
.flashcard-back {
  background: var(--gray-50);
  border: 2px solid var(--gray-300);
  transform: rotateY(180deg);
}
.flashcard-word { font-size: 28px; font-weight: 700; color: var(--gray-900); margin-bottom: 8px; }
.flashcard-hint { font-size: 12px; color: var(--gray-400); }
.flashcard-definition { font-size: 16px; font-weight: 600; color: var(--gray-800); margin-bottom: 12px; }
.flashcard-example { font-size: 13px; color: var(--gray-500); font-style: italic; line-height: 1.5; }
.flashcard-actions {
  display: flex;
  justify-content: center;
  gap: 16px;
}

/* ═══════════════════════════════════════════════════════════════════════════
   GRADING MODE SELECTOR
   ═══════════════════════════════════════════════════════════════════════════ */
.grading-mode-selector { margin-bottom: 20px; }
.grading-mode-selector > label { display: block; font-weight: 600; margin-bottom: 10px; color: var(--gray-700); }
[data-theme="dark"] .grading-mode-selector > label { color: var(--gray-300); }
.grading-mode-options { display: flex; gap: 12px; }
@media (max-width: 480px) { .grading-mode-options { flex-direction: column; } }
.grading-mode-option {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  border: 2px solid var(--gray-200);
  border-radius: 12px;
  padding: 14px 16px;
  cursor: pointer;
  transition: border-color .15s, background .15s;
  position: relative;
}
[data-theme="dark"] .grading-mode-option { border-color: var(--gray-700); }
.grading-mode-option input[type="radio"] { position: absolute; opacity: 0; width: 0; height: 0; }
.grading-mode-option:has(input:checked) {
  border-color: var(--primary);
  background: var(--primary-50, #eff6ff);
}
[data-theme="dark"] .grading-mode-option:has(input:checked) {
  border-color: var(--primary-light, #60a5fa);
  background: rgba(59,130,246,.12);
}
.mode-icon { font-size: 1.5rem; margin-bottom: 6px; }
.mode-title { font-weight: 700; font-size: .95rem; margin-bottom: 3px; }
.mode-desc { font-size: .78rem; color: var(--gray-500); line-height: 1.4; }

/* ═══════════════════════════════════════════════════════════════════════════
   QUEUE BADGE (sidebar nav)
   ═══════════════════════════════════════════════════════════════════════════ */
.queue-badge {
  display: inline-block;
  background: var(--danger, #ef4444);
  color: #fff;
  border-radius: 10px;
  font-size: .68rem;
  font-weight: 700;
  padding: 1px 6px;
  margin-left: 6px;
  vertical-align: middle;
  line-height: 1.6;
}
.queue-badge.hidden { display: none; }

/* ═══════════════════════════════════════════════════════════════════════════
   GRADE QUEUE VIEW
   ═══════════════════════════════════════════════════════════════════════════ */
.queue-item {
  background: var(--card-bg, #fff);
  border: 1px solid var(--gray-200);
  border-radius: 14px;
  padding: 20px 24px;
  margin-bottom: 16px;
  transition: box-shadow .15s;
}
[data-theme="dark"] .queue-item { background: var(--gray-800, #1f2937); border-color: var(--gray-700); }
.queue-item:hover { box-shadow: 0 4px 16px rgba(0,0,0,.08); }

.queue-item-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
  flex-wrap: wrap;
}
.queue-student { font-weight: 700; font-size: .95rem; }
.queue-meta { color: var(--gray-500); font-size: .82rem; }
.queue-meta span + span::before { content: ' · '; }

.queue-prompt {
  color: var(--gray-600);
  font-style: italic;
  font-size: .88rem;
  margin-bottom: 10px;
  border-left: 3px solid var(--gray-300);
  padding-left: 10px;
}
[data-theme="dark"] .queue-prompt { color: var(--gray-400); border-color: var(--gray-600); }

.queue-essay-preview {
  background: var(--gray-50);
  border-radius: 8px;
  padding: 12px 14px;
  font-size: .84rem;
  line-height: 1.6;
  margin-bottom: 14px;
  color: var(--gray-700);
}
[data-theme="dark"] .queue-essay-preview { background: var(--gray-900, #111827); color: var(--gray-300); }

.queue-actions { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 4px; }

/* Full essay text block */
.essay-text-block {
  background: var(--gray-50);
  border-radius: 8px;
  padding: 16px 18px;
  font-size: .88rem;
  line-height: 1.8;
  white-space: pre-wrap;
  word-break: break-word;
  margin-top: 12px;
  border: 1px solid var(--gray-200);
  max-height: 400px;
  overflow-y: auto;
}
[data-theme="dark"] .essay-text-block { background: var(--gray-900, #111827); border-color: var(--gray-700); color: var(--gray-200); }

/* ─── Submissions Archive ─────────────────────────────────────────────────── */
.archive-item {
  background: var(--card-bg, #fff);
  border: 1px solid var(--gray-200);
  border-radius: 14px;
  padding: 20px 24px;
  margin-bottom: 16px;
  transition: box-shadow .15s;
}
.archive-item:hover { box-shadow: 0 4px 16px rgba(0,0,0,.08); }
[data-theme="dark"] .archive-item { background: var(--gray-800, #1f2937); border-color: var(--gray-700); }

.archive-item-header {
  display: flex; align-items: center; gap: 10px; margin-bottom: 10px; flex-wrap: wrap;
}
.archive-student { font-weight: 700; font-size: .95rem; color: var(--text-primary); }
.archive-student-email { font-weight: 400; font-size: .82rem; color: var(--text-secondary); }
.archive-meta { color: var(--gray-500); font-size: .82rem; margin-left: auto; }

.archive-band-badge {
  background: var(--primary); color: #fff; border-radius: 6px;
  padding: 2px 10px; font-size: .82rem; font-weight: 700;
}

.archive-prompt {
  color: var(--gray-600); font-style: italic; font-size: .88rem;
  margin-bottom: 10px; border-left: 3px solid var(--gray-300); padding-left: 10px;
}
[data-theme="dark"] .archive-prompt { color: var(--gray-400); border-color: var(--gray-600); }

.archive-essay-preview {
  background: var(--gray-50); border-radius: 8px; padding: 12px 14px;
  font-size: .84rem; line-height: 1.6; margin-bottom: 14px; color: var(--gray-700);
}
[data-theme="dark"] .archive-essay-preview { background: var(--gray-900, #111827); color: var(--gray-300); }

.archive-actions { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 4px; }

/* Modal overlay for archive feedback */
.modal-overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,.5);
  display: flex; align-items: center; justify-content: center; z-index: 9000;
}
.modal-box {
  background: var(--card-bg, #fff); border-radius: 16px;
  padding: 28px 32px; width: 90%; box-shadow: 0 20px 60px rgba(0,0,0,.25);
}
[data-theme="dark"] .modal-box { background: var(--gray-800, #1f2937); }
.modal-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 8px; }
/* ──────────────────────────────────────────────────────────────────────────── */

/* ═══════════════════════════════════════════════════════════════════════════
   MANUAL GRADING PANEL
   ═══════════════════════════════════════════════════════════════════════════ */
.grading-panel {
  border-top: 1px solid var(--gray-200);
  padding-top: 18px;
  margin-top: 14px;
}
[data-theme="dark"] .grading-panel { border-color: var(--gray-700); }
.grading-form { display: flex; flex-direction: column; gap: 16px; }
.grading-panel h4 { font-size: 1rem; font-weight: 700; margin-bottom: 4px; }

.band-input-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}
@media (max-width: 540px) { .band-input-grid { grid-template-columns: 1fr; } }

.band-input-row label {
  display: block;
  font-size: .78rem;
  font-weight: 600;
  color: var(--gray-600);
  margin-bottom: 5px;
  text-transform: uppercase;
  letter-spacing: .03em;
}
[data-theme="dark"] .band-input-row label { color: var(--gray-400); }
.band-input-row select { width: 100%; }

.overall-band-preview {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark, #1d4ed8) 100%);
  border-radius: 10px;
  padding: 14px 18px;
  display: flex;
  align-items: center;
  gap: 14px;
  color: #fff;
}
.overall-band-number { font-size: 2rem; font-weight: 900; line-height: 1; }
.overall-band-label { font-size: .85rem; opacity: .85; }

.grading-panel-footer { display: flex; gap: 8px; justify-content: flex-end; }

/* ═══════════════════════════════════════════════════════════════════════════
   GRADED-BY BADGES (feedback view)
   ═══════════════════════════════════════════════════════════════════════════ */
.badge-teacher-graded {
  display: inline-block;
  background: #d1fae5;
  color: #065f46;
  border-radius: 20px;
  padding: 3px 12px;
  font-size: .82rem;
  font-weight: 600;
}
[data-theme="dark"] .badge-teacher-graded { background: #064e3b; color: #6ee7b7; }

.badge-ai-graded {
  display: inline-block;
  background: #ede9fe;
  color: #4c1d95;
  border-radius: 20px;
  padding: 3px 12px;
  font-size: .82rem;
  font-weight: 600;
}
[data-theme="dark"] .badge-ai-graded { background: #2e1065; color: #c4b5fd; }

/* Pending-review notice inside feedback view */
.grading-notice-review {
  background: #dbeafe;
  border: 1px solid #bfdbfe;
  border-radius: 10px;
  padding: 14px 18px;
  color: #1e40af;
  font-size: .9rem;
}
[data-theme="dark"] .grading-notice-review { background: #1e3a5f; border-color: #1e40af; color: #93c5fd; }

/* ═══════════════════════════════════════════════════════════════════════════
   @MEDIA PRINT (PDF export)
   ═══════════════════════════════════════════════════════════════════════════ */
@media print {
  body { background: white !important; }
  .topnav, .topnav-drawer-overlay, .topnav-drawer,
  .page-header .btn-back, #pdf-btn, .btn-back,
  .writing-timer-bar, .draft-restore-banner { display: none !important; }
  .main-content { padding: 0 !important; }
  .view.hidden { display: none !important; }
  #view-feedback { display: block !important; max-width: 100%; }
  .feedback-section { break-inside: avoid; }
  .radar-chart-container { max-width: 260px; }
}

/* ═══════════════════════════════════════════════════════════════════════════
   PASTE DETECTION BADGES
   ═══════════════════════════════════════════════════════════════════════════ */
.paste-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  border-radius: 20px;
  padding: 3px 10px;
  font-size: .75rem;
  font-weight: 600;
  margin-left: 8px;
  vertical-align: middle;
}
.paste-clean    { background: #d1fae5; color: #065f46; }
.paste-mixed    { background: #fef3c7; color: #92400e; }
.paste-suspicious { background: #fee2e2; color: #991b1b; }
[data-theme="dark"] .paste-clean       { background: #064e3b; color: #6ee7b7; }
[data-theme="dark"] .paste-mixed       { background: #451a03; color: #fcd34d; }
[data-theme="dark"] .paste-suspicious  { background: #450a0a; color: #fca5a5; }

/* ═══════════════════════════════════════════════════════════════════════════
   TEACHER COMMENTS
   ═══════════════════════════════════════════════════════════════════════════ */
.teacher-comments-section h3 { margin-bottom: 12px; }

.teacher-comments-list { display: flex; flex-direction: column; gap: 10px; }

.teacher-comment {
  background: var(--gray-50);
  border: 1px solid var(--gray-200);
  border-left: 4px solid var(--primary);
  border-radius: 8px;
  padding: 12px 14px;
}
[data-theme="dark"] .teacher-comment {
  background: var(--gray-800);
  border-color: var(--gray-700);
  border-left-color: var(--primary);
}

.tc-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 6px;
}
.tc-author { font-weight: 600; font-size: .85rem; color: var(--gray-700); }
.tc-date   { font-size: .78rem; color: var(--gray-500); }
.tc-text   { font-size: .9rem; color: var(--gray-800); line-height: 1.55; }
[data-theme="dark"] .tc-author { color: var(--gray-300); }
[data-theme="dark"] .tc-text   { color: var(--gray-200); }

.tc-delete {
  margin-left: auto;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--gray-400);
  font-size: .8rem;
  padding: 2px 6px;
  border-radius: 4px;
  transition: color .15s, background .15s;
}
.tc-delete:hover { color: var(--danger); background: var(--danger-light); }

.add-comment-row {
  display: flex;
  gap: 8px;
  margin-top: 10px;
  align-items: flex-start;
}
.add-comment-input {
  flex: 1;
  border: 1px solid var(--gray-300);
  border-radius: 8px;
  padding: 8px 10px;
  font-size: .9rem;
  resize: vertical;
  min-height: 60px;
  font-family: inherit;
  background: var(--card-bg, #fff);
  color: var(--gray-900);
}
[data-theme="dark"] .add-comment-input {
  border-color: var(--gray-600);
  background: var(--gray-800);
  color: var(--gray-100);
}
.add-comment-input:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(245,158,11,.15); }

/* ═══════════════════════════════════════════════════════════════════════════
   FLASHCARD SLIDE ANIMATIONS + TYPE BADGES
   ═══════════════════════════════════════════════════════════════════════════ */
@keyframes cardSlideIn     { from { opacity:0; transform:translateX(30px); }  to { opacity:1; transform:none; } }
@keyframes cardSlideInLeft { from { opacity:0; transform:translateX(-30px); } to { opacity:1; transform:none; } }
.flashcard-scene.slide-right { animation: cardSlideIn     .22s ease both; }
.flashcard-scene.slide-left  { animation: cardSlideInLeft .22s ease both; }

.flashcard-type-badge {
  font-size: .68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .06em;
  border-radius: 10px;
  padding: 2px 9px;
  display: inline-block;
}
.ftb-vocabulary  { background: #fef3c7; color: #92400e; }
.ftb-phrase      { background: #dbeafe; color: #1e40af; }
.ftb-collocation { background: #d1fae5; color: #065f46; }
[data-theme="dark"] .ftb-vocabulary  { background: #451a03; color: #fcd34d; }
[data-theme="dark"] .ftb-phrase      { background: #1e3a5f; color: #93c5fd; }
[data-theme="dark"] .ftb-collocation { background: #064e3b; color: #6ee7b7; }

/* ═══════════════════════════════════════════════════════════════════════════
   CHART IMAGE FRAME (Task 1)
   ═══════════════════════════════════════════════════════════════════════════ */
.chart-image-frame {
  border: 2px solid var(--gray-300);
  border-radius: 12px;
  padding: 16px;
  background: var(--gray-50);
  margin-bottom: 12px;
  text-align: center;
}
.chart-image-frame img {
  max-width: 100%;
  width: auto;
  height: auto;
  display: block;
  margin: 0 auto;
  border-radius: 8px;
}
[data-theme="dark"] .chart-image-frame {
  border-color: var(--gray-600);
  background: var(--gray-800);
}

/* Assignment image upload tabs */
.assign-img-tabs {
  display: flex;
  gap: 6px;
  margin-bottom: 8px;
}
.assign-img-tab {
  padding: 5px 14px;
  border: 1px solid var(--border);
  border-radius: 20px;
  background: transparent;
  color: var(--gray-600);
  font-size: .82rem;
  cursor: pointer;
  transition: all .15s;
}
.assign-img-tab.active {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
}
.assign-img-upload-area {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  border: 2px dashed var(--gray-300);
  border-radius: 10px;
  padding: 22px 16px;
  cursor: pointer;
  background: var(--gray-50);
  transition: border-color .2s, background .2s;
  text-align: center;
}
.assign-img-upload-area:hover {
  border-color: var(--primary);
  background: #eef2ff;
}
.assign-img-upload-icon { font-size: 1.8rem; }
[data-theme="dark"] .assign-img-upload-area {
  background: var(--gray-800);
  border-color: var(--gray-600);
}
[data-theme="dark"] .assign-img-upload-area:hover { border-color: var(--primary); }

/* Upload area improved border */
.image-upload-area {
  border: 2px dashed var(--gray-300) !important;
  min-height: 130px;
  border-radius: 10px;
}
.image-upload-area:hover { border-color: var(--primary) !important; }

/* Attach / change image toggle link */
.img-toggle-btn {
  background: none;
  border: none;
  color: var(--primary);
  font-size: .85rem;
  cursor: pointer;
  padding: 0;
  margin-bottom: 8px;
  text-decoration: underline;
  display: block;
}
.img-toggle-btn:hover { color: var(--primary-dark, var(--primary)); }

/* ═══════════════════════════════════════════════════════════════════════════
   GRADING AI RATIONALE (teacher grading panel)
   ═══════════════════════════════════════════════════════════════════════════ */
.grading-ai-rationale {
  background: #eff6ff;
  border: 1px solid #bfdbfe;
  border-radius: 8px;
  padding: 8px 12px;
  font-size: .82rem;
  color: #1e40af;
  margin-top: 6px;
  line-height: 1.5;
}
[data-theme="dark"] .grading-ai-rationale {
  background: #1e3a5f;
  border-color: #1e40af;
  color: #93c5fd;
}

/* ═══════════════════════════════════════════════════════════════════════════
   HOMEWORK CARD PROMPT PREVIEW
   ═══════════════════════════════════════════════════════════════════════════ */
.hw-card-prompt {
  font-style: italic;
  color: var(--gray-600);
  font-size: .85rem;
  border-left: 3px solid var(--primary);
  padding-left: 8px;
  margin: 4px 0 8px;
}
[data-theme="dark"] .hw-card-prompt { color: var(--gray-400); }

/* ─── Teacher Inline Essay Annotations ─────────────────────────────────── */
.annotation-section { margin-bottom: 16px; }
.annotation-section-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 6px; }
.annotation-legend { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 8px; align-items: center; }
.ann-type { font-size: .72rem; font-weight: 700; padding: 2px 8px; border-radius: 10px; white-space: nowrap; }
.ann-type.grammar    { background: #fee2e2; color: #991b1b; }
.ann-type.vocabulary { background: #fef3c7; color: #92400e; }
.ann-type.argument   { background: #dbeafe; color: #1e40af; }
.ann-type.structure  { background: #ede9fe; color: #5b21b6; }
.ann-type.strength   { background: #d1fae5; color: #065f46; }
[data-theme="dark"] .ann-type.grammar    { background: #450a0a; color: #fca5a5; }
[data-theme="dark"] .ann-type.vocabulary { background: #451a03; color: #fcd34d; }
[data-theme="dark"] .ann-type.argument   { background: #1e3a5f; color: #93c5fd; }
[data-theme="dark"] .ann-type.structure  { background: #2e1065; color: #c4b5fd; }
[data-theme="dark"] .ann-type.strength   { background: #064e3b; color: #6ee7b7; }

.annotatable-essay {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 14px;
  font-size: .9rem;
  line-height: 1.9;
  white-space: pre-wrap;
  max-height: 380px;
  overflow-y: auto;
  cursor: text;
  user-select: text;
}
.annotated-essay-view { cursor: default; user-select: text; }

.ann-mark { cursor: pointer; border-radius: 2px; padding: 0 1px; }
.ann-mark.ann-grammar    { background: #fee2e2; border-bottom: 2px solid #ef4444; }
.ann-mark.ann-vocabulary { background: #fef3c7; border-bottom: 2px solid #f59e0b; }
.ann-mark.ann-argument   { background: #dbeafe; border-bottom: 2px solid #3b82f6; }
.ann-mark.ann-structure  { background: #ede9fe; border-bottom: 2px solid #8b5cf6; }
.ann-mark.ann-strength   { background: #d1fae5; border-bottom: 2px solid #10b981; }
[data-theme="dark"] .ann-mark.ann-grammar    { background: rgba(239,68,68,0.25); border-color: #f87171; }
[data-theme="dark"] .ann-mark.ann-vocabulary { background: rgba(245,158,11,0.25); border-color: #fbbf24; }
[data-theme="dark"] .ann-mark.ann-argument   { background: rgba(59,130,246,0.25); border-color: #60a5fa; }
[data-theme="dark"] .ann-mark.ann-structure  { background: rgba(139,92,246,0.25); border-color: #a78bfa; }
[data-theme="dark"] .ann-mark.ann-strength   { background: rgba(16,185,129,0.25); border-color: #34d399; }

.ann-popup {
  position: fixed;
  z-index: 9999;
  background: #ffffff;
  border: 1.5px solid #d1d5db;
  border-radius: 12px;
  padding: 14px 16px;
  box-shadow: 0 12px 36px rgba(0,0,0,.22), 0 2px 8px rgba(0,0,0,.10);
  min-width: 280px;
  max-width: 360px;
}
[data-theme="dark"] .ann-popup {
  background: #1e293b;
  border-color: #334155;
  box-shadow: 0 12px 36px rgba(0,0,0,.5);
}
.ann-type-row { display: flex; gap: 5px; flex-wrap: wrap; margin-bottom: 8px; }
.ann-type-btn {
  padding: 3px 10px;
  border-radius: 12px;
  border: 1px solid var(--border);
  font-size: .72rem;
  cursor: pointer;
  font-weight: 600;
  background: var(--bg-secondary);
  color: var(--gray-600);
  transition: all .15s;
}
.ann-type-btn.selected,
.ann-type-btn:hover { background: var(--primary); color: white; border-color: var(--primary); }

.ann-tooltip {
  position: fixed;
  z-index: 10000;
  background: #1f2937;
  color: white;
  padding: 6px 10px;
  border-radius: 6px;
  font-size: .8rem;
  max-width: 220px;
  pointer-events: none;
  box-shadow: 0 4px 12px rgba(0,0,0,.25);
}

/* ─── Attendance / Classes ───────────────────────────────────────────────── */
.class-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px 20px;
  margin-bottom: 12px;
  gap: 16px;
}
.class-card-name {
  font-weight: 600;
  font-size: .95rem;
  color: var(--text-primary);
}
.class-card-desc {
  font-size: .82rem;
  color: var(--text-muted);
  margin-top: 2px;
}
.class-card-meta {
  font-size: .78rem;
  color: var(--gray-400);
  margin-top: 4px;
}
.class-card-actions {
  flex-shrink: 0;
}
.class-detail-actions {
  display: flex;
  gap: 8px;
  flex-shrink: 0;
}

/* Attendance modal */
.attendance-modal-box {
  max-width: 680px;
  width: 100%;
  max-height: 80vh;
  overflow-y: auto;
}
.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
  gap: 12px;
}
.modal-header h3 {
  font-size: 1rem;
  font-weight: 600;
}
.attendance-sheet {
  overflow-x: auto;
}

/* Status badges for attendance */
.status-badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 12px;
  font-size: .78rem;
  font-weight: 600;
}
.att-present { background: #dcfce7; color: #166534; }
.att-late    { background: #fef9c3; color: #854d0e; }
.att-absent  { background: #fee2e2; color: #991b1b; }
.att-excused { background: #ede9fe; color: #4c1d95; }
[data-theme="dark"] .att-present { background: #14532d; color: #86efac; }
[data-theme="dark"] .att-late    { background: #422006; color: #fde68a; }
[data-theme="dark"] .att-absent  { background: #450a0a; color: #fca5a5; }
[data-theme="dark"] .att-excused { background: #2e1065; color: #c4b5fd; }

.attendance-summary-row {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  padding: 12px 0;
}

/* FullCalendar dark mode tweaks */
[data-theme="dark"] .fc {
  --fc-border-color: var(--border);
  --fc-page-bg-color: var(--bg-card);
  --fc-neutral-bg-color: var(--bg-secondary);
  --fc-today-bg-color: rgba(99,102,241,.15);
  color: var(--text-primary);
}
[data-theme="dark"] .fc .fc-col-header-cell-cushion,
[data-theme="dark"] .fc .fc-daygrid-day-number { color: var(--text-primary); }

/* ─── BATCH ACTION TOOLBAR ──────────────────────────────────────────────── */
.batch-toolbar {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  padding: 10px 14px;
  background: var(--gray-900);
  color: #fff;
  border-radius: 10px;
  margin-bottom: 12px;
  opacity: 0.35;
  pointer-events: none;
  transition: opacity .2s;
}
.batch-toolbar.batch-toolbar-active {
  opacity: 1;
  pointer-events: auto;
}
.batch-count {
  font-size: .85rem;
  font-weight: 600;
  color: var(--primary);
  min-width: 80px;
}
.batch-actions { display: flex; gap: 6px; flex-wrap: wrap; }
[data-theme="dark"] .batch-toolbar { background: var(--gray-800); }

/* mb-4 utility */
.mb-4 { margin-bottom: 1rem; }
.btn-danger {
  background: #ef4444;
  color: white;
  border: none;
}
.btn-danger:hover { background: #dc2626; }


/* ─── Notification Bell ─────────────────────────────────────────────────── */
.notif-bell-nav-item { position: relative; }
.notif-badge {
  position: absolute;
  top: 6px; right: 6px;
  background: #ef4444; color: #fff;
  border-radius: 999px;
  font-size: 10px; font-weight: 700;
  min-width: 16px; height: 16px;
  display: inline-flex; align-items: center; justify-content: center;
  padding: 0 3px;
  pointer-events: none;
}

/* ─── Weakest Criterion Card ────────────────────────────────────────────── */
.weakest-criterion-card { border-left: 4px solid #f59e0b; }
.weakest-criterion-inner { display: flex; align-items: flex-start; gap: 12px; }
.weakest-criterion-icon { font-size: 28px; line-height: 1; flex-shrink: 0; }
.weakest-criterion-text { display: flex; flex-direction: column; gap: 2px; }
.weakest-criterion-band { font-size: 13px; color: var(--text-secondary); }
.weakest-criterion-hint { font-size: 12px; color: var(--text-secondary); margin-top: 4px; }

/* ─── Deadline Labels ───────────────────────────────────────────────────── */
.deadline-label { font-size: 12px; font-weight: 600; border-radius: 4px; padding: 2px 7px; display: inline-block; margin-top: 4px; }
.deadline-label.overdue   { background: #fee2e2; color: #b91c1c; }
.deadline-label.due-today { background: #fef3c7; color: #92400e; }
.deadline-label.due-soon  { background: #ffedd5; color: #c2410c; }
.deadline-label.due-week  { background: #ede9fe; color: #6d28d9; }

/* ─── Vocab Notebook ────────────────────────────────────────────────────── */
.vocab-list { display: flex; flex-direction: column; gap: 8px; }
.vocab-card-item {
  display: flex; justify-content: space-between; align-items: flex-start;
  padding: 12px 14px; border: 1px solid var(--border); border-radius: 8px;
  background: var(--card-bg);
}
.vocab-card-main { flex: 1; min-width: 0; }
.vocab-word { font-weight: 700; font-size: 16px; }
.vocab-def  { color: var(--text-secondary); font-size: 13px; margin-top: 3px; }
.vocab-example { color: var(--text-secondary); font-size: 13px; font-style: italic; margin-top: 2px; }
.vocab-delete-btn { flex-shrink: 0; margin-left: 10px; }

/* ─── Flashcard Save Row ────────────────────────────────────────────────── */
.flashcard-save-row { display: flex; align-items: center; gap: 10px; margin-top: 10px; }
.flashcard-saved-msg { font-size: 13px; color: #16a34a; font-weight: 600; }

/* ─── Task 2 Idea Scaffold (inside ideas-card) ──────────────────────────── */
.scaffold-fields {
  display: flex; flex-direction: column; gap: 8px;
  padding: 10px 12px;
  background: #fefce8;
  border-bottom: 1px solid #fde68a;
}
[data-theme="dark"] .scaffold-fields { background: #2a2000; border-bottom-color: #5a4500; }
.scaffold-hint { font-size: 11px; color: #92400e; margin: 0 0 2px; line-height: 1.4; }
[data-theme="dark"] .scaffold-hint { color: #fbbf24; }
.scaffold-row { display: flex; flex-direction: column; gap: 3px; }
.scaffold-label { font-size: 11px; font-weight: 600; color: #b45309; }
[data-theme="dark"] .scaffold-label { color: #fcd34d; }
.scaffold-optional { font-weight: 400; opacity: .8; }
.scaffold-input { font-size: 12px; padding: 5px 8px; }
.scaffold-clear-btn {
  align-self: flex-end; font-size: 11px; padding: 2px 8px;
  background: transparent; border: 1px solid #d97706; color: #b45309;
  border-radius: 4px; cursor: pointer; line-height: 1.6;
}
.scaffold-clear-btn:hover { background: #fef3c7; }
.scaffold-toggle-row { margin-bottom: 4px; }
.scaffold-toggle-btn {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 12px; font-weight: 600; color: #b45309;
  background: #fef3c7; border: 1px solid #fcd34d; border-radius: 6px;
  padding: 4px 10px; cursor: pointer; transition: background .15s;
  width: 100%;
}
.scaffold-toggle-btn:hover { background: #fde68a; }
[data-theme="dark"] .scaffold-toggle-btn { color: #fcd34d; background: #1c1a0e; border-color: #854d0e; }
[data-theme="dark"] .scaffold-toggle-btn:hover { background: #292107; }

/* ═══════════════════════════════════════════════════════════════════════════
   PRACTICE MODULE
   ═══════════════════════════════════════════════════════════════════════════ */

.practice-controls { margin-bottom: 20px; }
.practice-mode-tabs { display: flex; gap: 4px; margin-top: 12px; border-bottom: 2px solid var(--border); padding-bottom: 0; }
.practice-mode-tab {
  padding: 7px 14px; border: none; background: none; cursor: pointer;
  font-size: 13px; font-weight: 600; color: var(--text-secondary);
  border-bottom: 2px solid transparent; margin-bottom: -2px; transition: all .15s;
}
.practice-mode-tab.active { color: var(--primary); border-bottom-color: var(--primary); }

/* Exercise card */
.practice-card {
  background: var(--card-bg); border: 1px solid var(--border); border-radius: 12px;
  padding: 24px; max-width: 640px; margin: 0 auto;
}
.practice-progress { font-size: 12px; color: var(--text-secondary); margin-bottom: 12px; }
.practice-word-def { font-size: 14px; color: var(--text-secondary); margin-bottom: 8px; }
.practice-vn { margin-left: 8px; color: var(--primary); font-style: italic; }
.practice-word-big { font-size: 28px; font-weight: 700; color: var(--primary); margin-bottom: 6px; }
.practice-collocs { font-size: 13px; color: var(--text-secondary); margin-bottom: 12px; }
.colloc-chip { display: inline-block; background: var(--bg-secondary); border-radius: 4px; padding: 2px 7px; margin: 2px; font-size: 12px; }
.practice-sentence { font-size: 17px; margin: 16px 0; line-height: 1.6; }
.practice-hint { font-size: 13px; color: var(--text-secondary); margin-bottom: 8px; }
.practice-input {
  width: 100%; padding: 9px 12px; border: 2px solid var(--border); border-radius: 8px;
  font-size: 15px; background: var(--bg-primary); color: var(--text-primary); margin-bottom: 12px;
}
.practice-input:focus { outline: none; border-color: var(--primary); }
.practice-textarea {
  width: 100%; padding: 10px 12px; border: 2px solid var(--border); border-radius: 8px;
  font-size: 14px; background: var(--bg-primary); color: var(--text-primary);
  resize: vertical; min-height: 90px; font-family: inherit; margin-bottom: 6px;
}
.practice-textarea:focus { outline: none; border-color: var(--primary); }
.practice-actions { display: flex; gap: 8px; align-items: center; margin: 12px 0 8px; }
.practice-feedback {
  font-size: 14px; padding: 10px 14px; border-radius: 8px; margin-top: 10px; display: none;
}
.practice-feedback.correct  { display: block; background: #dcfce7; color: #166534; }
.practice-feedback.incorrect { display: block; background: #fee2e2; color: #991b1b; }
.practice-feedback.neutral  { display: block; background: #eff6ff; color: #1e40af; }
[data-theme="dark"] .practice-feedback.correct   { background: #14532d; color: #bbf7d0; }
[data-theme="dark"] .practice-feedback.incorrect { background: #7f1d1d; color: #fecaca; }
[data-theme="dark"] .practice-feedback.neutral   { background: #1e3a5f; color: #bfdbfe; }
.practice-score { font-size: 12px; color: var(--text-secondary); margin-top: 10px; text-align: right; }
.practice-complete { text-align: center; padding: 40px; }
.practice-complete-icon { font-size: 48px; margin-bottom: 12px; }
.practice-empty { color: var(--text-secondary); font-style: italic; padding: 20px 0; }

/* Unscramble */
.unscramble-bank { display: flex; flex-wrap: wrap; gap: 8px; margin: 12px 0; }
.unscramble-word {
  padding: 5px 10px; border: 2px solid var(--border); border-radius: 6px;
  background: var(--bg-secondary); cursor: pointer; font-size: 14px; transition: all .1s;
}
.unscramble-word:hover:not(:disabled) { border-color: var(--primary); }
.unscramble-word.used { opacity: .3; cursor: default; }
.unscramble-selected {
  min-height: 44px; border: 2px dashed var(--border); border-radius: 8px;
  padding: 8px; display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 8px;
}
.unscramble-selected-word {
  padding: 5px 10px; background: var(--primary); color: #fff;
  border-radius: 6px; font-size: 14px; cursor: pointer;
}

/* Paragraph writing */
.pp-prompt-box {
  background: var(--bg-secondary); border: 1px solid var(--border); border-radius: 10px;
  padding: 16px 20px; margin-bottom: 16px;
}
.pp-starter-label { font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: .05em; color: var(--text-secondary); margin-bottom: 6px; }
.pp-starter-text { font-size: 16px; font-style: italic; color: var(--primary); font-weight: 600; margin-bottom: 10px; }
.pp-word-count { font-size: 12px; color: var(--text-secondary); margin-bottom: 10px; }
.pp-feedback-card {
  background: var(--card-bg); border: 1px solid var(--border); border-radius: 12px;
  padding: 20px; margin-top: 16px;
}
.pp-feedback-card h4 { margin: 0 0 14px; font-size: 16px; }
.pp-feedback-row { margin-bottom: 12px; }
.pp-fb-label { font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: .05em; color: var(--text-secondary); display: block; margin-bottom: 3px; }
.pp-feedback-row p { margin: 0; font-size: 14px; line-height: 1.5; }
.pp-tip { background: #eff6ff; border-radius: 8px; padding: 10px 14px; }
[data-theme="dark"] .pp-tip { background: #1e3a5f; }
.pp-your-para { margin-top: 16px; border-top: 1px solid var(--border); padding-top: 14px; font-size: 13px; color: var(--text-secondary); }
.pp-your-para p { margin: 6px 0 0; line-height: 1.6; color: var(--text-primary); }

/* Grammar guide */
.grammar-card {
  border: 1px solid var(--border); border-radius: 12px; margin-bottom: 12px;
  overflow: hidden;
}
.grammar-card-header {
  display: flex; align-items: center; gap: 10px; padding: 16px 20px;
  cursor: pointer; user-select: none; background: var(--bg-secondary);
  transition: background .15s;
}
.grammar-card-header:hover { background: var(--border); }
.grammar-icon { font-size: 20px; }
.grammar-title { flex: 1; font-size: 16px; font-weight: 700; margin: 0; }
.grammar-chevron { font-size: 18px; color: var(--text-secondary); transition: transform .2s; }
.grammar-card-body { padding: 20px; }
.grammar-band-tip {
  background: #fef9c3; border-left: 3px solid #eab308; border-radius: 0 8px 8px 0;
  padding: 10px 14px; margin-bottom: 18px; font-size: 13px;
}
[data-theme="dark"] .grammar-band-tip { background: #2d2b0e; border-color: #ca8a04; }
.grammar-section { margin-bottom: 18px; }
.grammar-section:last-child { margin-bottom: 0; }
.grammar-section-label { font-size: 13px; font-weight: 700; color: var(--primary); margin-bottom: 4px; }
.grammar-rule { font-size: 13px; color: var(--text-secondary); margin-bottom: 8px; }
.grammar-examples { display: flex; flex-direction: column; gap: 8px; }
.grammar-example {
  background: var(--bg-secondary); border-radius: 8px; padding: 10px 14px;
  font-size: 14px; line-height: 1.6; border-left: 3px solid var(--border);
}

/* ═══════════════════════════════════════════════════════════════════════════
   SPEAKING TOPIC GENERATOR
   ═══════════════════════════════════════════════════════════════════════════ */

/* Filters row */
.speaking-filters {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}
.speaking-mode-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
}
.speaking-mode-btn {
  flex: 1;
  padding: 9px 0;
  border: 2px solid var(--border);
  border-radius: 10px;
  background: none;
  cursor: pointer;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-secondary);
  transition: border-color .2s, background .2s, color .2s;
}
.speaking-mode-btn.active {
  border-color: var(--primary);
  background: var(--primary);
  color: #fff;
}
.speaking-mode-btn:not(.active):hover {
  border-color: var(--primary);
  color: var(--primary);
}
.speaking-part-tabs {
  display: flex;
  gap: 4px;
  background: var(--gray-100);
  border-radius: 8px;
  padding: 3px;
}
.speaking-part-btn {
  padding: 6px 16px;
  border: none;
  border-radius: 6px;
  background: transparent;
  cursor: pointer;
  font-size: 14px;
  font-weight: 500;
  color: var(--gray-600);
  transition: background .15s, color .15s;
}
.speaking-part-btn.active {
  background: var(--primary);
  color: #fff;
}
.speaking-select {
  min-width: 160px;
  padding: 7px 10px;
  font-size: 14px;
  flex: 1;
  max-width: 220px;
}

/* Main topic card */
.speaking-topic-card {
  background: #fff;
  border: 1px solid var(--gray-200);
  border-radius: 16px;
  padding: 28px 32px;
  margin-bottom: 20px;
  min-height: 180px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  box-shadow: var(--shadow-md);
  transition: transform .35s ease, opacity .35s ease;
}
.speaking-topic-card.spinning {
  transform: scale(.97);
  opacity: .6;
}
.speaking-topic-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}
.speaking-topic-part-badge {
  background: var(--primary);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 999px;
  text-transform: uppercase;
  letter-spacing: .04em;
}
.speaking-topic-category-tag {
  background: var(--gray-100);
  color: var(--gray-600);
  font-size: 12px;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 999px;
}
.speaking-topic-diff-tag {
  font-size: 11px;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 999px;
}
.speaking-topic-diff-tag.diff-easy   { background: #dcfce7; color: #15803d; }
.speaking-topic-diff-tag.diff-medium { background: #fef9c3; color: #a16207; }
.speaking-topic-diff-tag.diff-hard   { background: #fee2e2; color: #b91c1c; }
.speaking-topic-question {
  font-size: 22px;
  font-weight: 600;
  line-height: 1.4;
  color: var(--gray-800);
}
.speaking-cue-bullets {
  list-style: disc;
  padding-left: 20px;
  color: var(--gray-600);
  font-size: 15px;
  line-height: 1.9;
  margin: 0;
}

/* Spin button row */
.speaking-main-controls {
  display: flex;
  justify-content: center;
  margin-bottom: 24px;
}
.speaking-spin-btn {
  font-size: 18px;
  padding: 14px 40px;
  border-radius: 12px;
  letter-spacing: .02em;
}

/* Timer section */
.speaking-timer-section {
  background: var(--gray-50);
  border: 1px solid var(--gray-200);
  border-radius: 14px;
  padding: 20px 24px;
  margin-bottom: 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}
.speaking-timer-phases {
  display: flex;
  gap: 6px;
}
.speaking-phase-btn {
  padding: 6px 18px;
  border: 1px solid var(--gray-300);
  border-radius: 8px;
  background: #fff;
  cursor: pointer;
  font-size: 13px;
  font-weight: 500;
  color: var(--gray-600);
  transition: all .15s;
}
.speaking-phase-btn.active {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
}
.speaking-timer-display {
  font-size: 52px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  color: var(--gray-800);
  letter-spacing: -.02em;
  line-height: 1;
  transition: color .2s;
}
.speaking-timer-display.speaking-timer-warning { color: #d97706; }
.speaking-timer-display.speaking-timer-expired  { color: #dc2626; }
.speaking-timer-label {
  font-size: 13px;
  color: var(--gray-500);
  font-weight: 500;
  margin-top: -4px;
}
.speaking-timer-btns {
  display: flex;
  gap: 8px;
  margin-top: 4px;
  align-items: center;
  flex-wrap: wrap;
  justify-content: center;
}
.speaking-adjust-btn {
  font-size: 13px;
  font-weight: 700;
  padding: 6px 12px;
  min-width: 54px;
}
.btn-impromptu-speak {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 28px;
  font-size: 16px;
  font-weight: 700;
  background: #16a34a;
  color: #fff;
  border: none;
  border-radius: 10px;
  cursor: pointer;
  margin: 12px 0 4px;
  transition: background .15s, transform .1s;
}
.btn-impromptu-speak:hover { background: #15803d; transform: scale(1.03); }

/* Frameworks section */
.speaking-frameworks {
  margin-top: 4px;
}
.frameworks-title {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 14px;
  color: var(--gray-700);
}
.frameworks-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 14px;
}
.framework-card {
  background: #fff;
  border: 1px solid var(--gray-200);
  border-radius: 12px;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.framework-name {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--primary-dark);
}
.framework-body {
  font-size: 13px;
  line-height: 1.8;
  color: var(--gray-700);
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.framework-body.tip-phrases { gap: 4px; font-size: 12px; }
.framework-body em { color: var(--gray-600); }
.fw-letter {
  font-weight: 700;
  color: var(--primary);
  font-size: 14px;
}
.framework-use {
  font-size: 11px;
  color: var(--gray-400);
  border-top: 1px solid var(--gray-100);
  padding-top: 8px;
  font-style: italic;
}

/* Dark mode */
[data-theme="dark"] .speaking-mode-btn { border-color: #334155; color: #94a3b8; }
[data-theme="dark"] .speaking-mode-btn.active { border-color: var(--primary); background: var(--primary); color: #fff; }
[data-theme="dark"] .speaking-mode-btn:not(.active):hover { border-color: var(--primary); color: var(--primary); }
[data-theme="dark"] .speaking-topic-card { background: #1e293b; border-color: #334155; }
[data-theme="dark"] .speaking-topic-question { color: var(--gray-800); }
[data-theme="dark"] .speaking-topic-category-tag { background: #334155; color: var(--gray-600); }
[data-theme="dark"] .speaking-part-tabs { background: #0f172a; }
[data-theme="dark"] .speaking-timer-section { background: #0f172a; border-color: #334155; }
[data-theme="dark"] .speaking-timer-display { color: var(--gray-800); }
[data-theme="dark"] .framework-card { background: #1e293b; border-color: #334155; }
[data-theme="dark"] .framework-body { color: var(--gray-700); }
[data-theme="dark"] .speaking-phase-btn { background: #1e293b; border-color: #334155; color: var(--gray-600); }
[data-theme="dark"] .speaking-cue-bullets { color: var(--gray-600); }

/* Impromptu reminder banner */
.impromptu-reminder-banner {
  display: flex; align-items: flex-start; gap: 10px;
  background: #eff6ff; border: 1px solid #bfdbfe; border-radius: 8px;
  padding: 10px 14px; margin-top: 8px; font-size: 13px; color: #1e40af;
}
.impromptu-reminder-banner span { flex: 1; line-height: 1.5; }
.btn-close-banner {
  background: none; border: none; cursor: pointer; font-size: 16px;
  color: #93c5fd; padding: 0 2px; flex-shrink: 0;
}
.btn-close-banner:hover { color: #1e40af; }
[data-theme="dark"] .impromptu-reminder-banner { background: #1e3a5f; border-color: #2563eb; color: #93c5fd; }
[data-theme="dark"] .btn-close-banner { color: #60a5fa; }

@media (max-width: 600px) {
  .speaking-topic-question { font-size: 18px; }
  .speaking-timer-display { font-size: 40px; }
  .frameworks-grid { grid-template-columns: 1fr 1fr; }
  .speaking-select { max-width: 100%; }
}

/* ─── Vocabulary Learning Module ─────────────────────────────────────────── */
.vl-picker-row { margin-bottom: 18px; }
.vl-picker-row label { font-weight: 600; display: block; margin-bottom: 8px; font-size: 14px; }
.vl-topic-chips, .vl-level-chips { display: flex; gap: 8px; flex-wrap: wrap; }
.vl-chip {
  padding: 6px 16px; border: 2px solid var(--border); border-radius: 20px;
  background: none; cursor: pointer; font-size: 13px; font-weight: 600;
  color: var(--text-secondary); transition: all .15s;
}
.vl-chip:hover { border-color: var(--primary); color: var(--primary); }
.vl-chip.active { border-color: var(--primary); background: var(--primary); color: #fff; }
.vl-game-buttons { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 20px; }
.vl-word-preview { display: flex; gap: 6px; flex-wrap: wrap; margin: 10px 0; min-height: 32px; }
.vl-preview-chip { padding: 4px 12px; background: var(--bg-secondary); border-radius: 12px; font-size: 13px; }

/* Game header */
.vl-game-header { display: flex; align-items: center; gap: 12px; margin-bottom: 20px; padding-bottom: 12px; border-bottom: 1px solid var(--border); }
#vl-game-title { font-weight: 700; font-size: 17px; flex: 1; }
#vl-game-progress { color: var(--text-secondary); font-size: 13px; font-weight: 600; }

/* Flip card extras */
.flashcard-vn { color: var(--primary); font-size: 15px; font-weight: 600; margin-top: 8px; }
.flashcard-colloc { font-size: 12px; color: var(--text-secondary); margin-top: 4px; }

/* Quiz */
.vl-quiz-question { font-size: 26px; font-weight: 800; text-align: center; margin: 8px 0 6px; color: var(--text); }
.vl-quiz-options { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 12px; }
.vl-quiz-opt {
  padding: 14px 12px; border: 2px solid var(--border); border-radius: 10px;
  background: var(--card-bg); cursor: pointer; font-size: 14px;
  text-align: left; transition: border-color .15s, background .15s; line-height: 1.4;
}
.vl-quiz-opt:hover:not(:disabled) { border-color: var(--primary); }
.vl-quiz-opt.correct { border-color: #16a34a !important; background: #dcfce7 !important; color: #14532d !important; }
.vl-quiz-opt.wrong   { border-color: #dc2626 !important; background: #fee2e2 !important; color: #7f1d1d !important; }
[data-theme="dark"] .vl-quiz-opt.correct { background: #14532d !important; color: #bbf7d0 !important; }
[data-theme="dark"] .vl-quiz-opt.wrong   { background: #7f1d1d !important; color: #fecaca !important; }

/* Typing test */
.vl-typing-def { font-size: 17px; line-height: 1.7; margin-bottom: 6px; font-weight: 500; }
.vl-typing-vn  { color: var(--primary); font-size: 14px; font-weight: 600; margin-bottom: 18px; }
.vl-typing-input {
  width: 100%; padding: 12px 16px; font-size: 20px; border: 2px solid var(--border);
  border-radius: 10px; text-align: center; letter-spacing: 3px; background: var(--input-bg);
  color: var(--text); box-sizing: border-box; transition: border-color .2s, background .2s;
}
.vl-typing-input:focus { outline: none; border-color: var(--primary); }
.vl-typing-input.correct { border-color: #16a34a !important; background: #dcfce7 !important; }
.vl-typing-input.wrong   { border-color: #dc2626 !important; background: #fee2e2 !important; }
[data-theme="dark"] .vl-typing-input.correct { background: #14532d !important; }
[data-theme="dark"] .vl-typing-input.wrong   { background: #7f1d1d !important; }

/* Matching game */
.vl-match-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
#vl-words-col, #vl-defs-col { display: flex; flex-direction: column; gap: 8px; }
.vl-match-item {
  padding: 10px 14px; border: 2px solid var(--border); border-radius: 8px;
  cursor: pointer; font-size: 13px; transition: all .15s; background: var(--card-bg); line-height: 1.4;
}
.vl-match-item:hover { border-color: var(--primary); }
.vl-match-item.selected { border-color: var(--primary); background: #eff6ff; }
.vl-match-item.matched  { border-color: #16a34a !important; background: #dcfce7 !important; color: #14532d !important; pointer-events: none; }
.vl-match-item.wrong    { border-color: #dc2626 !important; background: #fee2e2 !important; animation: vlShake .35s; }
[data-theme="dark"] .vl-match-item.selected { background: #1e3a5f; }
[data-theme="dark"] .vl-match-item.matched  { background: #14532d !important; color: #bbf7d0 !important; }
[data-theme="dark"] .vl-match-item.wrong    { background: #7f1d1d !important; }
@keyframes vlShake {
  0%,100%{transform:translateX(0)} 20%{transform:translateX(-6px)} 60%{transform:translateX(6px)}
}

/* Result */
.vl-result { text-align: center; padding: 28px 16px; }
.vl-result-score { font-size: 52px; font-weight: 800; color: var(--primary); line-height: 1; margin-bottom: 6px; }
.vl-result-label { font-size: 16px; color: var(--text-secondary); margin-bottom: 24px; }

@media (max-width: 600px) {
  .vl-quiz-options { grid-template-columns: 1fr; }
  .vl-match-grid   { grid-template-columns: 1fr; }
  .vl-result-score { font-size: 40px; }
}

/* ── My Drafts Modal ──────────────────────────────────────────────────────── */
.drafts-modal-box {
  width: min(620px, 95vw);
  max-height: 80vh;
  overflow-y: auto;
  padding: 24px;
}
.draft-item {
  border: 1.5px solid var(--border);
  border-radius: 10px;
  padding: 14px 16px;
  margin-bottom: 10px;
  background: var(--card-bg);
  transition: border-color .15s;
}
.draft-item:hover { border-color: var(--primary); }
.draft-item-header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 6px;
  flex-wrap: wrap;
}
.draft-item-title {
  font-weight: 600;
  font-size: 14px;
  flex: 1;
  min-width: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.draft-item-preview {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: 10px;
}
.draft-item-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 6px;
}
.btn-danger {
  background: #dc2626;
  color: #fff;
  border: none;
}
.btn-danger:hover { background: #b91c1c; }

/* ── Vocab Word List Table ────────────────────────────────────────────────── */
.vl-word-table-header { font-size:12px; color:var(--text-secondary); margin-bottom:6px; }
.vl-word-table { border:1.5px solid var(--border); border-radius:10px; overflow:hidden; margin-bottom:16px; }
.vl-word-row { border-bottom:1px solid var(--border); cursor:pointer; transition:background .12s; }
.vl-word-row:last-child { border-bottom:none; }
.vl-word-row:hover { background:var(--bg-secondary); }
.vl-word-row-main { display:grid; grid-template-columns:110px 90px 1fr 20px; align-items:center; gap:8px; padding:10px 14px; }
.vl-wt-word  { font-weight:700; font-size:14px; }
.vl-wt-vn   { color:var(--primary); font-size:13px; font-weight:600; }
.vl-wt-def  { font-size:13px; color:var(--text-secondary); }
.vl-wt-chevron { color:var(--text-secondary); font-size:16px; transition:transform .15s; justify-self:end; }
.vl-row-open .vl-wt-chevron { transform:rotate(90deg); }
.vl-word-row-detail { padding:6px 14px 12px; background:var(--bg-secondary); }
.vl-wt-colloc { font-size:12px; color:var(--text-secondary); margin-bottom:4px; }
.vl-wt-example { font-size:13px; font-style:italic; }
@media (max-width:600px) {
  .vl-word-row-main { grid-template-columns:80px 65px 1fr 16px; }
}

/* ── Vocab Section Tabs ───────────────────────────────────────────────────── */
.vl-section-tabs { display:flex; gap:4px; margin-bottom:20px; border-bottom:2px solid var(--border); padding-bottom:0; }
.vl-section-tab {
  padding:8px 16px; border:none; background:none; cursor:pointer;
  font-size:14px; font-weight:600; color:var(--text-secondary);
  border-bottom:2px solid transparent; margin-bottom:-2px; transition:all .15s;
}
.vl-section-tab.active { color:var(--primary); border-bottom-color:var(--primary); }

/* ── Collocation Cards ────────────────────────────────────────────────────── */
.vl-colloc-card { padding:12px 16px; border:1px solid var(--border); border-radius:8px; margin-bottom:8px; }
.vl-colloc-phrase { font-weight:700; font-size:15px; margin-bottom:4px; }
.vl-colloc-example { font-size:13px; font-style:italic; color:var(--text-secondary); }

/* ── Baby Words Table ─────────────────────────────────────────────────────── */
.vl-baby-table { width:100%; border-collapse:collapse; font-size:14px; }
.vl-baby-table th { text-align:left; padding:8px 12px; background:var(--bg-secondary); font-weight:700; font-size:12px; border-bottom:2px solid var(--border); }
.vl-baby-table td { padding:10px 12px; border-bottom:1px solid var(--border); vertical-align:top; }
.vl-baby-table tr:last-child td { border-bottom:none; }
.vl-baby-weak { color:#dc2626; font-weight:600; }
.vl-baby-upgrade { color:#16a34a; font-weight:600; }
.vl-baby-example { color:var(--text-secondary); font-size:13px; }

/* Save-to-vocab button on word rows */
.vl-save-btn {
  margin-left:auto; padding:2px 8px; border:none; background:none;
  cursor:pointer; font-size:15px; border-radius:4px; flex-shrink:0;
  opacity:0.4; transition:opacity .15s;
}
.vl-word-row:hover .vl-save-btn { opacity:1; }
.vl-save-btn:disabled { opacity:1; cursor:default; }

/* ─── Speaking: Model Answer + Linked Part 3 ──────────────────────────────── */
.btn-model-answer-toggle {
  display: block; margin-top: 14px; background: none;
  border: 1px solid var(--primary); color: var(--primary);
  border-radius: 6px; padding: 6px 14px; font-size: 13px;
  font-weight: 600; cursor: pointer; transition: background .15s;
}
.btn-model-answer-toggle:hover { background: rgba(99,102,241,.08); }

.speaking-model-answer {
  margin-top: 10px; padding: 14px 16px;
  background: var(--bg-secondary); border-left: 3px solid var(--primary);
  border-radius: 0 8px 8px 0; font-size: 14px; line-height: 1.75;
  color: var(--text-primary);
}

.linked-part3-heading {
  margin-top: 16px; font-size: 11px; font-weight: 700;
  color: var(--text-secondary); text-transform: uppercase; letter-spacing: .06em;
}
.linked-part3-item {
  margin-top: 8px; padding: 10px 14px; border: 1px solid var(--border);
  border-radius: 8px; background: var(--bg-primary);
}
.linked-part3-cat {
  display: inline-block; font-size: 11px; font-weight: 700; color: var(--primary);
  background: rgba(99,102,241,.08); border-radius: 4px;
  padding: 1px 7px; margin-bottom: 5px;
}
.linked-part3-item p { margin: 0; font-size: 13px; line-height: 1.55; color: var(--text-primary); }

/* Speaking: Key Vocabulary chips */
.speaking-vocab-heading {
  margin-top: 16px; font-size: 11px; font-weight: 700;
  color: var(--text-secondary); text-transform: uppercase; letter-spacing: .06em;
}
#speaking-vocab-chips {
  display: flex; flex-wrap: wrap; gap: 6px; margin-top: 8px;
}
.speaking-vocab-chip {
  display: inline-block; padding: 4px 10px;
  background: var(--bg-secondary); border: 1px solid var(--border);
  border-radius: 20px; font-size: 12px; color: var(--text-primary);
  font-style: italic; cursor: default;
}