/* ═══════════════════════════════════════════════
   Provat Design System — v2 (Linear/Apple-inspired)
   ═══════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Inter:ital,opsz,wght@0,14..32,300..900;1,14..32,300..900&display=swap');

/* ══════════════════════════════════════════════
   LIGHT THEME (default)
   ══════════════════════════════════════════════ */
:root {
  color-scheme: light;

  /* ── Palette ── */
  --bg:              #f5f6f8;
  --bg-elevated:     #ffffff;
  --panel:           #ffffff;
  --panel-raised:    #f0f1f5;
  --panel-glass:     rgba(245, 246, 248, 0.88);
  --ink:             #0f1117;
  --ink-secondary:   #4b5263;
  --muted:           #8a919f;
  --line:            rgba(0, 0, 0, 0.08);
  --line-light:      rgba(0, 0, 0, 0.04);

  /* ── Brand / Accent ── */
  --primary:         #00a87e;
  --primary-dim:     rgba(0, 168, 126, 0.10);
  --primary-hover:   #008f6b;
  --primary-text:    #00a87e;
  --accent:          #00a87e;
  --accent-light:    rgba(0, 168, 126, 0.08);

  /* ── Semantic ── */
  --danger:          #dc2626;
  --danger-light:    rgba(220, 38, 38, 0.09);
  --warning:         #d97706;
  --warning-light:   rgba(217, 119, 6, 0.10);
  --success-bg:      rgba(0, 168, 126, 0.07);
  --success-border:  rgba(0, 168, 126, 0.25);
  --error-bg:        rgba(220, 38, 38, 0.07);
  --error-border:    rgba(220, 38, 38, 0.25);
  --warning-bg:      rgba(217, 119, 6, 0.07);
  --warning-border:  rgba(217, 119, 6, 0.25);

  /* ── Table row tints ── */
  --correct-row:     rgba(0, 168, 126, 0.05);
  --incorrect-row:   rgba(220, 38, 38, 0.05);
  --ambiguous-row:   rgba(217, 119, 6, 0.05);

  /* ── Radius ── */
  --radius-sm:  8px;
  --radius-md:  12px;
  --radius-lg:  16px;
  --radius-xl:  20px;

  /* ── Shadows ── */
  --shadow-sm:  0 1px 3px rgba(0,0,0,0.07), 0 1px 2px rgba(0,0,0,0.05);
  --shadow-md:  0 4px 16px rgba(0,0,0,0.09), 0 1px 4px rgba(0,0,0,0.06);
  --shadow-lg:  0 12px 40px rgba(0,0,0,0.11), 0 2px 8px rgba(0,0,0,0.07);
  --shadow-xl:  0 24px 64px rgba(0,0,0,0.14), 0 4px 16px rgba(0,0,0,0.08);
  --glow-sm:    0 0 20px rgba(0, 168, 126, 0.12);
  --glow-md:    0 0 40px rgba(0, 168, 126, 0.16);

  /* ── Motion ── */
  --transition:  0.18s cubic-bezier(0.4, 0, 0.2, 1);
  --spring:      0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* ══════════════════════════════════════════════
   DARK THEME  (toggled via [data-theme="dark"])
   ══════════════════════════════════════════════ */
[data-theme="dark"] {
  color-scheme: dark;

  --bg:              #0d0e11;
  --bg-elevated:     #111316;
  --panel:           #16181d;
  --panel-raised:    #1c1f26;
  --panel-glass:     rgba(22, 24, 29, 0.82);
  --ink:             #f0f1f4;
  --ink-secondary:   #9ca3b0;
  --muted:           #5c6472;
  --line:            rgba(255, 255, 255, 0.07);
  --line-light:      rgba(255, 255, 255, 0.04);

  --primary:         #00d4a0;
  --primary-dim:     rgba(0, 212, 160, 0.12);
  --primary-hover:   #00b88a;
  --primary-text:    #00d4a0;
  --accent:          #00d4a0;
  --accent-light:    rgba(0, 212, 160, 0.08);

  --danger:          #f04c4c;
  --danger-light:    rgba(240, 76, 76, 0.12);
  --warning:         #f5a623;
  --warning-light:   rgba(245, 166, 35, 0.12);
  --success-bg:      rgba(0, 212, 160, 0.08);
  --success-border:  rgba(0, 212, 160, 0.3);
  --error-bg:        rgba(240, 76, 76, 0.08);
  --error-border:    rgba(240, 76, 76, 0.3);
  --warning-bg:      rgba(245, 166, 35, 0.08);
  --warning-border:  rgba(245, 166, 35, 0.3);

  --correct-row:     rgba(0, 212, 160, 0.06);
  --incorrect-row:   rgba(240, 76, 76, 0.06);
  --ambiguous-row:   rgba(245, 166, 35, 0.06);

  --shadow-sm:  0 1px 3px rgba(0,0,0,0.4), 0 1px 2px rgba(0,0,0,0.3);
  --shadow-md:  0 4px 16px rgba(0,0,0,0.5), 0 1px 4px rgba(0,0,0,0.3);
  --shadow-lg:  0 12px 40px rgba(0,0,0,0.6), 0 2px 8px rgba(0,0,0,0.4);
  --shadow-xl:  0 24px 64px rgba(0,0,0,0.7), 0 4px 16px rgba(0,0,0,0.5);
  --glow-sm:    0 0 20px rgba(0, 212, 160, 0.15);
  --glow-md:    0 0 40px rgba(0, 212, 160, 0.2);
}

/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--ink);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  line-height: 1.55;
  font-size: 15px;
  font-feature-settings: "cv02", "cv03", "cv04", "cv11";
}

/* ─── Topbar ─── */
.topbar {
  position: sticky;
  top: 0;
  z-index: 200;
  background: var(--panel-glass);
  backdrop-filter: blur(24px) saturate(200%);
  -webkit-backdrop-filter: blur(24px) saturate(200%);
  border-bottom: 1px solid var(--line);
  /* Accent stripe at very bottom of topbar */
  box-shadow: 0 1px 0 0 var(--line), 0 4px 24px rgba(0,0,0,0.06);
}

/* Subtle top accent bar */
.topbar::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--primary) 0%, transparent 60%);
  opacity: 0.7;
  pointer-events: none;
}

.topbar-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 32px;
  height: 62px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.topbar-controls {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

/* Divider between nav groups */
.topbar-controls nav + .theme-toggle,
.topbar-controls .account-chip + .theme-toggle {
  margin-left: 4px;
}

.topbar-controls nav {
  display: flex;
  align-items: center;
  gap: 2px;
  background: var(--line-light);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 3px;
}

.topbar-controls nav a {
  color: var(--ink-secondary);
  text-decoration: none;
  padding: 5px 14px;
  border-radius: 7px;
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: -0.01em;
  transition: all var(--transition);
  white-space: nowrap;
}

.topbar-controls nav a:hover {
  color: var(--ink);
  background: var(--panel);
}

.topbar-controls nav a.nav-active {
  color: var(--primary);
  background: var(--panel);
  font-weight: 600;
  box-shadow: var(--shadow-sm);
}

/* ─── Brand ─── */
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--ink);
  flex-shrink: 0;
}

.brand:hover .brand-name {
  color: var(--primary);
}

/* The logo SVG already includes the wordmark — no separate brand-name needed */
.brand-logo {
  height: 48px;
  width: auto;
  display: block;
  flex-shrink: 0;
  transition: opacity var(--transition), transform var(--transition);
}

.brand:hover .brand-logo {
  opacity: 0.85;
  transform: translateY(-1px);
}

/* Light mode: show light logo, hide dark variant */
.brand-logo-light { display: block; }
.brand-logo-dark  { display: none;  }

/* Dark mode: hide light logo, show dark variant */
[data-theme="dark"] .brand-logo-light { display: none; }
[data-theme="dark"] .brand-logo-dark  { display: block; }

/* ─── Language switcher ─── */
.language-switcher {
  display: flex;
  align-items: center;
  gap: 2px;
  background: var(--line-light);
  border: 1px solid var(--line);
  border-radius: 9px;
  padding: 3px;
}

/* ─── Account chip ─── */
.account-chip {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 5px 8px 5px 12px;
  border-radius: 10px;
  background: var(--panel-raised);
  border: 1px solid var(--line);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.account-chip:hover {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-dim);
}

.account-info strong {
  display: block;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--ink);
  letter-spacing: -0.01em;
}

.account-info span {
  display: block;
  font-size: 0.68rem;
  color: var(--muted);
}

/* ─── Language pills ─── */
.language-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 38px;
  padding: 4px 8px;
  border-radius: 6px;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: var(--muted);
  text-decoration: none;
  transition: all var(--transition);
}

.language-pill:hover {
  color: var(--ink);
  background: var(--line);
}

.language-pill.is-active {
  background: var(--panel);
  color: var(--primary);
  box-shadow: var(--shadow-sm);
}

@media (max-width: 720px) {
  .topbar-inner {
    flex-direction: column;
    align-items: flex-start;
    height: auto;
    padding: 12px 16px;
    gap: 10px;
  }
  .topbar-controls { align-items: flex-start; }
}

/* ─── Container ─── */
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 32px 28px 120px;
}

/* ─── Breadcrumbs ─── */
.breadcrumbs {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 0 18px;
  font-size: 0.82rem;
  color: var(--muted);
  flex-wrap: wrap;
}

.breadcrumbs a {
  color: var(--ink-secondary);
  text-decoration: none;
  font-weight: 500;
  transition: color var(--transition);
}

.breadcrumbs a:hover { color: var(--ink); }

.breadcrumbs .sep {
  color: var(--muted);
  user-select: none;
  font-size: 0.7rem;
}

.breadcrumbs .current {
  color: var(--ink);
  font-weight: 600;
}

/* ─── Flash Messages ─── */
.flash {
  padding: 12px 16px;
  border-radius: var(--radius-md);
  margin-bottom: 14px;
  font-size: 0.84rem;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 10px;
  animation: flash-in 0.3s ease;
  border: 1px solid;
}

.flash-success {
  background: var(--success-bg);
  border-color: var(--success-border);
  color: #4ade80;
}

.flash-error {
  background: var(--error-bg);
  border-color: var(--error-border);
  color: #f87171;
}

.flash-warning {
  background: var(--warning-bg);
  border-color: var(--warning-border);
  color: #fbbf24;
}

.flash .flash-close {
  margin-left: auto;
  background: none;
  border: none;
  color: inherit;
  cursor: pointer;
  font-size: 1.1rem;
  padding: 0 4px;
  opacity: 0.5;
  transition: opacity var(--transition);
}

.flash .flash-close:hover { opacity: 1; }

@keyframes flash-in {
  from { opacity: 0; transform: translateY(-6px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ─── Panel ─── */
.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 24px;
  margin-bottom: 16px;
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  position: relative;
}

.panel-hero {
  background:
    radial-gradient(ellipse 60% 120% at 90% -10%, rgba(0, 212, 160, 0.06) 0%, transparent 60%),
    radial-gradient(ellipse 40% 80% at -10% 110%, rgba(0, 212, 160, 0.04) 0%, transparent 60%),
    var(--panel);
  border-color: rgba(0, 212, 160, 0.12);
}

.panel-accent {
  border-color: rgba(0, 212, 160, 0.14);
  background:
    radial-gradient(ellipse at top right, rgba(0, 212, 160, 0.07), transparent 50%),
    var(--panel);
}

.panel-sidebar {
  background: var(--bg-elevated);
  border-color: var(--line);
}

/* ─── Question Lanes ─── */
.question-lane {
  background: var(--bg-elevated);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 16px;
  min-height: 280px;
  margin-top: 18px;
}

.exam-question-lane { margin-top: 18px; }

.question-bank-lane {
  background: rgba(0, 212, 160, 0.04);
  margin-top: 0;
}

.question-lane-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 12px;
}

.question-lane-header h2 {
  margin: 0;
  font-size: 1.0rem;
}

.question-lane-header p {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 0.84rem;
}

.question-list:empty::before {
  content: "No questions yet.";
  display: block;
  padding: 24px 16px;
  border: 1px dashed var(--line);
  border-radius: var(--radius-md);
  color: var(--muted);
  font-size: 0.84rem;
  text-align: center;
  background: var(--line-light);
}

.question-card-actions { margin: 8px 0 10px; }
.question-card-actions .move-question-btn { min-width: 140px; }
.question-bank-panel { margin-top: 16px; }

.question-bank-panel summary {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  cursor: pointer;
  padding: 14px 16px;
  background: rgba(0, 212, 160, 0.05);
  border: 1px solid rgba(0, 212, 160, 0.12);
  border-radius: var(--radius-lg);
  font-weight: 600;
}

.question-bank-panel[open] summary {
  border-bottom-left-radius: 0;
  border-bottom-right-radius: 0;
}

.question-bank-panel .details-content {
  border: 1px solid var(--line);
  border-top: none;
  border-bottom-left-radius: var(--radius-lg);
  border-bottom-right-radius: var(--radius-lg);
  padding: 16px;
  background: var(--bg-elevated);
}

.question-bank-copy {
  margin: 0 0 12px;
  color: var(--muted);
  font-size: 0.875rem;
}

/* ─── Analytics ─── */
.analytics-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.analytics-panel { overflow: visible; }

.analytics-chart-tooltip {
  position: fixed;
  top: 0; left: 0;
  max-width: min(320px, calc(100vw - 24px));
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  background: var(--panel-raised);
  border: 1px solid var(--line);
  color: var(--ink);
  font-size: 0.78rem;
  line-height: 1.4;
  box-shadow: var(--shadow-lg);
  pointer-events: none;
  opacity: 0;
  transform: translateY(4px);
  transition: opacity 0.12s ease, transform 0.12s ease;
  z-index: 400;
  white-space: normal;
}

.analytics-chart-tooltip.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.analytics-chart-tooltip-title {
  margin: 0 0 4px;
  font-weight: 700;
}

.analytics-chart-tooltip-line { margin: 0; }

.analytics-toolbar {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}

.analytics-toolbar h1 { margin: 0; }
.analytics-meta { margin: 6px 0 0; color: var(--muted); font-size: 0.9rem; }
.analytics-empty-state h2 { margin: 0 0 8px; color: var(--ink); }

.analytics-item-card {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 16px;
  background: var(--panel);
  min-width: 0;
  overflow: visible;
  transition: box-shadow var(--transition), border-color var(--transition), transform var(--transition);
}

.analytics-item-card:hover {
  box-shadow: var(--shadow-md);
  border-color: rgba(0, 212, 160, 0.14);
  transform: translateY(-1px);
}

.analytics-item-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 10px;
}

.analytics-item-title-row {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.analytics-question-chip {
  position: relative;
  border: 1px solid rgba(0, 212, 160, 0.2);
  background: var(--primary-dim);
  color: var(--primary);
  border-radius: 999px;
  padding: 4px 10px;
  font-size: 0.72rem;
  font-weight: 600;
  cursor: help;
  white-space: nowrap;
}

.analytics-question-chip[data-tooltip-side="left"] .analytics-question-tooltip { left: 0; transform: translateY(-4px); }
.analytics-question-chip[data-tooltip-side="right"] .analytics-question-tooltip { left: auto; right: 0; transform: translateY(-4px); }

.analytics-question-chip:focus-visible { outline: 2px solid rgba(0, 212, 160, 0.4); outline-offset: 2px; }

.analytics-question-tooltip {
  position: absolute;
  top: calc(100% + 8px);
  left: 50%;
  width: min(320px, 72vw);
  padding: 12px 14px;
  border-radius: var(--radius-md);
  background: var(--panel-raised);
  border: 1px solid var(--line);
  color: var(--ink);
  font-size: 0.78rem;
  line-height: 1.45;
  box-shadow: var(--shadow-xl);
  opacity: 0;
  pointer-events: none;
  transform: translateX(-50%) translateY(-4px);
  transition: opacity 0.16s ease, transform 0.16s ease;
  z-index: 20;
  white-space: normal;
}

.analytics-question-chip:hover .analytics-question-tooltip,
.analytics-question-chip:focus-visible .analytics-question-tooltip { opacity: 1; transform: translateX(-50%) translateY(0); }

.analytics-question-chip[data-tooltip-side="left"]:hover .analytics-question-tooltip,
.analytics-question-chip[data-tooltip-side="left"]:focus-visible .analytics-question-tooltip,
.analytics-question-chip[data-tooltip-side="right"]:hover .analytics-question-tooltip,
.analytics-question-chip[data-tooltip-side="right"]:focus-visible .analytics-question-tooltip { transform: translateY(0); }

.analytics-metrics-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
  flex-wrap: wrap;
}

.analytics-metric { font-size: 0.8rem; }
.analytics-chart-wrap { height: 180px; overflow: visible; }

.analytics-legend {
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 0.74rem;
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.analytics-legend-swatch {
  width: 10px;
  height: 10px;
  border-radius: 3px;
  display: inline-block;
  margin-right: 4px;
}

.analytics-legend-swatch-correct     { background: var(--primary); }
.analytics-legend-swatch-distractor  { background: #e76f51; }
.analytics-legend-swatch-no-response { background: #e9c46a; }

/* ─── Layout helpers ─── */
.row  { display: flex; align-items: center; }
.wrap { flex-wrap: wrap; }
.gap  { gap: 10px; }
.gap-lg { gap: 16px; }

/* ─── Stat Cards ─── */
.stat-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 12px;
  margin-bottom: 20px;
}

.stat-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 20px 18px;
  text-align: center;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.stat-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at top center, rgba(0, 212, 160, 0.04) 0%, transparent 60%);
  pointer-events: none;
}

.stat-card:hover {
  box-shadow: var(--shadow-md);
  border-color: rgba(0, 212, 160, 0.14);
  transform: translateY(-2px);
}

.stat-card .stat-value {
  font-size: 1.9rem;
  font-weight: 700;
  color: var(--primary);
  line-height: 1.1;
  letter-spacing: -0.03em;
}

.stat-card .stat-label {
  font-size: 0.72rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.07em;
  font-weight: 600;
  margin-top: 5px;
}

.stat-card.accent .stat-value { color: var(--accent); }
.stat-card.danger .stat-value { color: var(--danger); }
.stat-card.warning .stat-value { color: var(--warning); }

/* ─── Forms ─── */
label {
  display: block;
  font-weight: 600;
  font-size: 0.82rem;
  margin: 10px 0 5px;
  color: var(--ink-secondary);
  letter-spacing: 0.01em;
}

input[type="text"],
input[type="number"],
input[type="file"],
input[type="search"],
input[type="email"],
input[type="password"],
textarea,
select {
  width: 100%;
  padding: 10px 13px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--bg-elevated);
  font-size: 0.875rem;
  font-family: inherit;
  color: var(--ink);
  transition: all var(--transition);
}

input[type="text"]::placeholder,
input[type="number"]::placeholder,
input[type="search"]::placeholder,
input[type="email"]::placeholder,
input[type="password"]::placeholder,
textarea::placeholder { color: var(--muted); }

input[type="text"]:focus,
input[type="number"]:focus,
input[type="search"]:focus,
input[type="email"]:focus,
input[type="password"]:focus,
textarea:focus,
select:focus {
  outline: none;
  border-color: rgba(0, 212, 160, 0.4);
  box-shadow: 0 0 0 3px rgba(0, 212, 160, 0.1);
  background: var(--panel);
}

select option { background: var(--panel-raised); color: var(--ink); }

/* ─── Buttons ─── */
button,
.button-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  background: var(--primary);
  color: #0a0f0d;
  border: none;
  border-radius: var(--radius-sm);
  padding: 9px 16px;
  text-decoration: none;
  cursor: pointer;
  font-weight: 700;
  font-size: 0.83rem;
  font-family: inherit;
  letter-spacing: -0.01em;
  transition: all var(--transition);
  white-space: nowrap;
  position: relative;
}

button:hover,
.button-link:hover {
  background: var(--primary-hover);
  box-shadow: 0 0 20px rgba(0, 212, 160, 0.25);
  transform: translateY(-1px);
}

button:active,
.button-link:active {
  transform: translateY(0);
  box-shadow: none;
}

.btn-accent { background: var(--primary); color: #0a0f0d; }
.btn-accent:hover { background: var(--primary-hover); box-shadow: var(--glow-sm); }

.btn-secondary {
  background: var(--panel-raised);
  color: var(--ink-secondary);
  border: 1px solid var(--line);
  font-weight: 500;
}

.btn-secondary:hover {
  background: var(--line);
  color: var(--ink);
  border-color: var(--line);
  transform: translateY(-1px);
}

.btn-outline {
  background: transparent;
  color: var(--primary);
  border: 1.5px solid rgba(0, 212, 160, 0.35);
  font-weight: 500;
}

.btn-outline:hover {
  background: var(--primary-dim);
  border-color: var(--primary);
  box-shadow: none;
}

.btn-danger {
  background: var(--danger-light);
  color: var(--danger);
  border: 1px solid rgba(240, 76, 76, 0.25);
  font-weight: 600;
}

.btn-danger:hover {
  background: var(--danger);
  color: #fff;
  border-color: transparent;
}

.btn-ghost {
  background: transparent;
  color: var(--muted);
  border: 1px solid var(--line);
  font-weight: 500;
}

.btn-ghost:hover {
  background: var(--line-light);
  color: var(--ink-secondary);
  box-shadow: none;
}

.btn-sm   { padding: 5px 11px; font-size: 0.77rem; }
.btn-lg   { padding: 12px 24px; font-size: 0.93rem; border-radius: var(--radius-md); }

.visibility-toggle { display: inline-flex; align-items: center; gap: 6px; }
.visibility-toggle-icon { font-size: 0.95rem; line-height: 1; }

button[disabled] {
  cursor: not-allowed;
  opacity: 0.4;
  transform: none !important;
  box-shadow: none !important;
}

/* ─── Badges ─── */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 9px;
  border-radius: 999px;
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.badge-success  { background: rgba(74, 222, 128, 0.12); color: #4ade80; border: 1px solid rgba(74, 222, 128, 0.2); }
.badge-warning  { background: var(--warning-light); color: #fbbf24; border: 1px solid rgba(251, 191, 36, 0.2); }
.badge-danger   { background: var(--danger-light); color: #f87171; border: 1px solid rgba(248, 113, 113, 0.2); }
.badge-info     { background: rgba(96, 165, 250, 0.1); color: #60a5fa; border: 1px solid rgba(96, 165, 250, 0.2); }
.badge-muted    { background: var(--line-light); color: var(--muted); border: 1px solid var(--line); }

/* ─── Tables ─── */
table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  margin-top: 8px;
}

th, td {
  border-bottom: 1px solid var(--line);
  padding: 10px 12px;
  text-align: left;
  font-size: 0.84rem;
}

th {
  background: var(--bg-elevated);
  font-weight: 600;
  font-size: 0.71rem;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--muted);
}

th:first-child { border-top-left-radius: var(--radius-sm); }
th:last-child  { border-top-right-radius: var(--radius-sm); }

tbody tr { transition: background var(--transition); }
tbody tr:hover { background: var(--line-light); }

.table-row-correct   { background: var(--correct-row); }
.table-row-incorrect { background: var(--incorrect-row); }
.table-row-ambiguous { background: var(--ambiguous-row); }

/* ─── Status icons ─── */
.icon-check::before { content: "\2713"; color: var(--primary); font-weight: 700; }
.icon-x::before     { content: "\2717"; color: var(--danger); font-weight: 700; }
.icon-warn::before  { content: "\26A0"; color: var(--warning); }

/* ─── Score bar ─── */
.score-bar {
  display: inline-block;
  width: 60px;
  height: 5px;
  background: var(--line);
  border-radius: 999px;
  overflow: hidden;
  vertical-align: middle;
  margin-left: 6px;
}

.score-bar-fill {
  height: 100%;
  border-radius: 999px;
  transition: width 0.3s;
}

.sensitive-cell { position: relative; white-space: nowrap; }
.grade-percentage-content { display: inline-flex; align-items: center; }
.grade-mask { display: none; font-weight: 700; letter-spacing: 0.08em; color: var(--muted); }
.grades-hidden .grade-sensitive { display: none !important; }
.grades-hidden .grade-mask { display: inline-flex; align-items: center; }

/* ─── Confidence / Difficulty colors ─── */
.confidence-high  { color: var(--primary); font-weight: 600; }
.confidence-mid   { color: var(--warning); font-weight: 600; }
.confidence-low   { color: var(--danger);  font-weight: 600; }

.diff-good       { color: var(--primary); }
.diff-moderate   { color: var(--warning); }
.diff-extreme    { color: var(--danger); }
.disc-good       { color: var(--primary); }
.disc-fair       { color: var(--warning); }
.disc-poor       { color: var(--danger); }

.interp-label { font-size: 0.72rem; font-weight: 600; margin-left: 4px; }

/* ─── Question cards ─── */
.question-card,
.question-view,
.item-card {
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 14px;
  margin-top: 10px;
  background: var(--panel-raised);
  transition: border-color var(--transition);
}

.question-card.review-focus {
  border-color: rgba(0, 212, 160, 0.4);
  box-shadow: 0 0 0 3px rgba(0, 212, 160, 0.1);
}

/* ─── Review assistant ─── */
.review-assistant { margin-top: 22px; }

.review-assistant-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(280px, 420px);
  gap: 24px;
  align-items: start;
}

.review-assistant-copy h2 { margin: 6px 0 10px; font-size: 1.35rem; line-height: 1.2; letter-spacing: -0.02em; }
.review-assistant-copy p  { margin: 0; max-width: 60ch; color: var(--muted); }

.review-kicker,
.review-summary-kicker,
.review-status-eyebrow,
.review-card-kicker {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--primary);
}

.review-control-card {
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  padding: 18px;
  background: var(--panel);
  box-shadow: var(--shadow-md);
  display: grid;
  gap: 14px;
}

.review-control-group { display: grid; gap: 8px; }
.review-control-label { font-size: 0.82rem; font-weight: 700; color: var(--ink); }

.segmented-control { display: inline-flex; flex-wrap: wrap; gap: 8px; }

.segmented-option {
  background: var(--bg-elevated);
  color: var(--ink-secondary);
  border: 1px solid var(--line);
  border-radius: 999px;
  min-width: 110px;
  text-align: center;
  transition: all var(--transition);
}

.segmented-option.is-active {
  background: var(--primary);
  border-color: transparent;
  color: #0a0f0d;
  box-shadow: var(--glow-sm);
}

.review-run-btn { width: 100%; }

.review-status-strip {
  margin-top: 18px;
  border-radius: var(--radius-lg);
  padding: 14px 18px;
  border: 1px solid var(--line);
  background: var(--panel);
}

.review-status-strip p { margin: 6px 0 0; }

.review-status-neutral  { background: var(--panel); }
.review-status-loading  { border-color: rgba(0, 212, 160, 0.2); background: rgba(0, 212, 160, 0.05); }
.review-status-success  { border-color: var(--success-border); background: var(--success-bg); }
.review-status-error    { border-color: var(--error-border); background: var(--error-bg); }

.review-summary        { margin-top: 16px; }
.review-summary-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 10px;
  margin-bottom: 12px;
}

.review-summary-header h3 { margin: 6px 0 0; }

.review-summary-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.review-summary-card {
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 16px;
  background: var(--panel-raised);
  display: grid;
  gap: 4px;
}

.review-summary-card strong { font-size: 1.4rem; line-height: 1; letter-spacing: -0.03em; }
.review-summary-card span   { color: var(--muted); font-size: 0.82rem; }

.review-results   { margin-top: 18px; display: grid; gap: 16px; }

.review-empty-state {
  border: 1px dashed var(--line);
  border-radius: var(--radius-lg);
  padding: 24px;
  background: var(--bg-elevated);
  text-align: center;
}

.review-empty-state h3 { margin: 0 0 8px; }
.review-empty-state p  { margin: 0; color: var(--muted); }

.review-loading-state  { position: relative; overflow: hidden; }

.review-loading-state::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent, var(--line-light), transparent);
  transform: translateX(-100%);
  animation: review-shimmer 1.6s infinite;
}

.review-card {
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  padding: 20px;
  background: var(--panel);
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition);
}

.review-card:hover { box-shadow: var(--shadow-md); }

.review-card-error { border-color: rgba(240, 76, 76, 0.2); }

.review-card-header { display: flex; justify-content: space-between; align-items: start; gap: 12px; }
.review-card-header h3 { margin: 6px 0 0; font-size: 1.0rem; line-height: 1.35; }

.review-card-badges {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px;
}

.review-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.review-badge-outline   { border: 1px solid var(--line); color: var(--ink-secondary); background: transparent; }
.review-badge-success   { background: rgba(74, 222, 128, 0.12); color: #4ade80; }
.review-badge-warning   { background: var(--warning-light); color: #fbbf24; }
.review-badge-danger    { background: var(--danger-light); color: var(--danger); }
.review-badge-muted     { background: var(--line-light); color: var(--muted); }

.review-meta-grid {
  margin-top: 14px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.review-meta-card,
.review-section {
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 14px;
  background: var(--bg-elevated);
}

.review-meta-card span,
.review-section h4 { display: block; margin: 0; color: var(--muted); }

.review-meta-card strong { display: block; margin-top: 6px; font-size: 1.08rem; }
.review-meta-card p,
.review-section p { margin: 10px 0 0; line-height: 1.55; }

.review-sections  { margin-top: 14px; display: grid; gap: 12px; }
.review-section h4 { font-size: 0.84rem; font-weight: 700; color: var(--ink); }
.review-list      { margin: 10px 0 0; padding-left: 18px; display: grid; gap: 8px; }
.review-list li   { line-height: 1.5; }
.review-muted     { color: var(--muted); }

.review-rewrite-block  { display: grid; gap: 12px; }
.review-rewrite-stem   { font-weight: 600; }
.review-option-grid    { display: grid; gap: 8px; }

.review-option-pill {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: 10px;
  align-items: start;
  padding: 10px 14px;
  border-radius: var(--radius-md);
  background: var(--bg-elevated);
  border: 1px solid var(--line);
}

.review-option-label {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--primary-dim);
  color: var(--primary);
  font-weight: 700;
}

.review-rewrite-note,
.review-error-copy { color: var(--muted); }

.review-card-footer { margin-top: 14px; display: flex; justify-content: flex-end; }

.options-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 6px;
  margin-top: 6px;
}

.inline-form { display: flex; gap: 8px; align-items: flex-end; }

/* ─── Images row ─── */
.images-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.review-image {
  width: 100%;
  max-height: 650px;
  object-fit: contain;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  cursor: zoom-in;
  transition: box-shadow var(--transition);
}

.review-image:hover { box-shadow: var(--shadow-md); }

.question-action-cell { width: 110px; }
.question-review-title { font-weight: 600; line-height: 1.4; }
.question-review-panel { display: grid; gap: 10px; }

.question-review-image {
  display: block;
  max-width: 240px;
  max-height: 160px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  margin-top: 10px;
}

.question-review-meta { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 10px; }
.question-review-label { display: block; margin-top: 12px; font-size: 0.875rem; font-weight: 600; }

.question-review-form-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 8px;
}

.question-review-form-row select { min-width: 260px; flex: 1 1 320px; }
.question-review-save-status { min-height: 1.25rem; margin-top: 6px; font-size: 0.82rem; color: var(--muted); }
.question-review-options { display: grid; gap: 6px; margin-top: 10px; }

.question-review-option {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  gap: 8px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  background: var(--bg-elevated);
}

.question-review-option.is-selected {
  border-color: rgba(96, 165, 250, 0.35);
  background: rgba(96, 165, 250, 0.06);
}

.question-review-option.is-correct {
  box-shadow: inset 0 0 0 1px rgba(0, 212, 160, 0.35);
}

.question-review-option-label {
  width: 24px;
  height: 24px;
  border-radius: 999px;
  background: var(--primary-dim);
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.78rem;
}

.question-review-option-flags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 6px; }

@media (max-width: 900px) {
  .images-row { grid-template-columns: 1fr; }
  .question-action-cell { width: auto; }
}

/* ─── Image zoom modal ─── */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.92);
  backdrop-filter: blur(8px);
  z-index: 1000;
  cursor: zoom-out;
  justify-content: center;
  align-items: center;
}

.modal-overlay.active { display: flex; }

.modal-overlay img {
  max-width: 95%;
  max-height: 95%;
  object-fit: contain;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-xl);
}

/* ─── Dropzone ─── */
.dropzone {
  border: 1px dashed var(--line);
  border-radius: var(--radius-lg);
  padding: 40px 20px;
  text-align: center;
  color: var(--muted);
  transition: all var(--transition);
  cursor: pointer;
  background: var(--bg-elevated);
}

.dropzone:hover,
.dropzone.drag-over {
  border-color: rgba(0, 212, 160, 0.4);
  background: rgba(0, 212, 160, 0.04);
  color: var(--primary);
}

.dropzone .dropzone-icon { font-size: 2.25rem; margin-bottom: 10px; display: block; }
.dropzone .dropzone-text { font-size: 0.93rem; font-weight: 500; }
.dropzone .dropzone-hint { font-size: 0.78rem; margin-top: 6px; opacity: 0.7; }
.dropzone input[type="file"] { display: none; }

.file-list {
  margin-top: 10px;
  font-size: 0.82rem;
  color: var(--ink);
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.file-list-item {
  padding: 3px 10px;
  background: var(--primary-dim);
  color: var(--primary);
  border-radius: 999px;
  font-weight: 500;
  font-size: 0.76rem;
  border: 1px solid rgba(0, 212, 160, 0.2);
}

.manual-assignment-banner {
  margin-top: 16px;
  border: 1px solid var(--warning-border);
  background: var(--warning-bg);
  border-radius: var(--radius-md);
  padding: 14px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.manual-scan-grid { display: grid; gap: 16px; }

.manual-scan-card {
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 16px;
  background: var(--panel-raised);
}

.manual-scan-body { min-width: 0; display: flex; flex-direction: column; flex-grow: 1; }
.manual-scan-badges { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 6px; }

.manual-scan-error {
  margin: 12px 0;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  background: var(--error-bg);
  border: 1px solid var(--error-border);
  color: #f87171;
  font-size: 0.875rem;
}

.manual-assign-form { display: grid; gap: 8px; }

/* ─── Sticky bar ─── */
.sticky-bar {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  background: var(--panel-glass);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-top: 1px solid var(--line);
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  z-index: 50;
  box-shadow: 0 -8px 32px rgba(0, 0, 0, 0.3);
}

/* ─── Details / Collapsible ─── */
details {
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  margin-top: 10px;
  overflow: hidden;
  min-width: 0;
}

details > summary {
  padding: 12px 14px;
  cursor: pointer;
  font-weight: 600;
  user-select: none;
  list-style: none;
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.84rem;
  background: var(--bg-elevated);
  color: var(--ink-secondary);
  transition: color var(--transition);
}

details > summary:hover { color: var(--ink); }

details > summary::before {
  content: "\25B6";
  font-size: 0.6rem;
  transition: transform 0.2s;
  color: var(--muted);
}

details[open] > summary::before { transform: rotate(90deg); }
details > summary::-webkit-details-marker { display: none; }
details .details-content { padding: 0 14px 14px; overflow: hidden; min-width: 0; }
.panel details { border-color: var(--line); }

/* ─── Toast ─── */
.toast {
  position: fixed;
  bottom: 80px;
  right: 20px;
  background: var(--panel-raised);
  border: 1px solid var(--line);
  color: var(--ink);
  padding: 12px 18px;
  border-radius: var(--radius-md);
  font-size: 0.83rem;
  font-weight: 500;
  z-index: 200;
  animation: toast-in 0.25s ease;
  max-width: 360px;
  box-shadow: var(--shadow-lg);
}

.toast.toast-error   { background: var(--danger-light); border-color: rgba(240,76,76,0.3); color: #f87171; }
.toast.toast-success { background: var(--success-bg); border-color: var(--success-border); color: var(--primary); }

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

@keyframes review-shimmer {
  from { transform: translateX(-100%); }
  to   { transform: translateX(200%); }
}

/* ─── Void / Empty states ─── */
.void-dimmed { opacity: 0.3; pointer-events: none; }

.empty-state {
  text-align: center;
  padding: 40px 20px;
  color: var(--muted);
}

.empty-state .empty-icon {
  font-size: 2.25rem;
  margin-bottom: 12px;
  display: block;
  opacity: 0.5;
}

.empty-state p { margin: 4px 0; }

/* ─── Back link ─── */
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: var(--muted);
  text-decoration: none;
  font-size: 0.82rem;
  margin-bottom: 8px;
  font-weight: 500;
  transition: color var(--transition);
}

.back-link:hover   { color: var(--ink); }
.back-link::before { content: "\2190"; }

/* ─── Search ─── */
.search-input { max-width: 320px; margin-bottom: 12px; }

.table-helper { margin: 12px 0 0; color: var(--muted); font-size: 0.84rem; }

.table-pagination {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
  margin-top: 14px;
}

.table-pagination-status { color: var(--muted); font-size: 0.82rem; min-width: 90px; text-align: center; }
.table-pagination button:disabled { cursor: not-allowed; opacity: 0.35; transform: none; }

/* ─── Quick actions ─── */
.quick-actions { display: flex; gap: 6px; flex-wrap: wrap; align-items: center; }
.quick-actions form { margin: 0; }
.quick-actions a,
.quick-actions button { font-size: 0.77rem; padding: 4px 10px; }

.warn { color: var(--danger); }

/* ─── Navigation arrows ─── */
.nav-arrows {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 16px;
  padding: 14px 0;
}

.nav-arrows a {
  color: var(--primary);
  text-decoration: none;
  font-size: 0.84rem;
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  transition: all var(--transition);
}

.nav-arrows a:hover {
  background: var(--primary-dim);
}

/* ─── Pass/fail donut ─── */
.donut-container { display: flex; align-items: center; gap: 16px; margin-top: 12px; }
.donut-container canvas { max-width: 120px; max-height: 120px; }

/* ─── Course / Dashboard UX ─── */
.empty-state-large { padding: 56px 20px; }

.eyebrow {
  display: inline-block;
  margin-bottom: 10px;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--primary);
}

.section-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
}

.section-heading h1,
.section-heading h2,
.section-heading h3 { margin: 0; }

h1, h2, h3 {
  letter-spacing: -0.025em;
  line-height: 1.2;
}

h1 { font-weight: 700; }
h2 { font-weight: 600; }
h3 { font-weight: 600; }

.dashboard-hero h1,
.course-hero h1,
.auth-intro h1 {
  margin: 0 0 10px;
  font-size: clamp(1.7rem, 3vw, 2.3rem);
  line-height: 1.1;
  font-weight: 700;
  letter-spacing: -0.035em;
}

.dashboard-hero p,
.course-hero p,
.auth-intro p {
  margin: 0;
  max-width: 680px;
  color: var(--muted);
  font-size: 0.93rem;
  line-height: 1.65;
}

.dashboard-intro,
.page-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
}

.page-header-copy   { min-width: 0; }
.page-header-actions {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 10px;
  flex-shrink: 0;
}

.page-header-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 18px;
}

.anchor-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 6px 13px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--panel-raised);
  color: var(--ink-secondary);
  text-decoration: none;
  font-size: 0.82rem;
  font-weight: 500;
  transition: all var(--transition);
}

.anchor-pill:hover {
  background: var(--primary-dim);
  color: var(--primary);
  border-color: rgba(0, 212, 160, 0.25);
}

#create-course,
#course-exams,
#course-bank,
#course-roster,
#course-collaboration { scroll-margin-top: 90px; }

/* ─── Bento / Dashboard Grid ─── */
.dashboard-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.8fr) minmax(300px, 0.9fr);
  gap: 16px;
  align-items: start;
}

.dashboard-main,
.dashboard-side { min-width: 0; }

.panel-note { margin: 0 0 14px; }

.course-list { display: grid; gap: 10px; }

.course-list-item {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 18px 20px;
  background: var(--panel-raised);
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.course-list-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--primary);
  transform: scaleY(0);
  transform-origin: center;
  transition: transform var(--transition);
  border-radius: 0 2px 2px 0;
}

.course-list-item:hover {
  border-color: rgba(0, 212, 160, 0.18);
  box-shadow: var(--shadow-md);
  transform: translateX(2px);
}

.course-list-item:hover::before { transform: scaleY(1); }

.course-list-title {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 5px;
}

.course-list-item h3,
.invite-card h3 { margin: 0; }

.course-list-item h3 a,
.table-link {
  color: var(--ink);
  text-decoration: none;
  font-weight: 600;
  letter-spacing: -0.02em;
  transition: color var(--transition);
}

.course-list-item h3 a:hover,
.table-link:hover { color: var(--primary); text-decoration: none; }

.course-list-copy p,
.invite-card p,
.muted-copy,
.auth-footnote { margin: 0; color: var(--muted); font-size: 0.84rem; }

.course-list-actions { display: flex; align-items: center; }

.stack-form { display: grid; gap: 10px; }
.compact-stack { gap: 14px; }

.feature-list { margin: 0; padding-left: 18px; color: var(--muted); }
.feature-list li + li { margin-top: 8px; }

.invite-list,
.member-list,
.compact-roster,
.pending-chip-list { display: grid; gap: 10px; }

.invite-card,
.bank-preview-card {
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--bg-elevated);
  transition: border-color var(--transition);
}

.invite-card:hover,
.bank-preview-card:hover { border-color: rgba(0,212,160,0.15); }

.compact-roster-row,
.member-row {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
}

.compact-roster-row:last-child,
.member-row:last-child { border-bottom: none; }

.compact-roster-row span,
.member-row span { color: var(--muted); font-size: 0.82rem; }

.bank-preview-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 12px;
}

.bank-preview-card strong {
  display: block;
  margin-bottom: 8px;
  color: var(--primary);
  font-size: 0.84rem;
}

.bank-preview-card p { margin: 0; color: var(--ink-secondary); font-size: 0.84rem; }

/* ─── Auth layout ─── */
.auth-shell { max-width: 1280px; }

.auth-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(340px, 0.9fr);
  gap: 20px;
  align-items: stretch;
  min-height: calc(100vh - 180px);
}

.auth-intro {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 56px 44px;
}

.auth-intro h1 { color: var(--ink); }

.auth-points {
  margin: 24px 0 0;
  padding-left: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.auth-points li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.9rem;
  color: var(--ink-secondary);
  line-height: 1.5;
}

.auth-points li::before {
  content: "";
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--primary-dim);
  border: 1px solid rgba(0,212,160,0.3);
  flex-shrink: 0;
  margin-top: 1px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 12'%3E%3Cpath d='M2 6l3 3 5-5' stroke='%2300d4a0' stroke-width='1.5' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: center;
  background-size: 10px;
}

.auth-card {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.auth-tabs {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 4px;
  margin-bottom: 20px;
  background: var(--bg-elevated);
  padding: 4px;
  border-radius: var(--radius-md);
  border: 1px solid var(--line);
}

.auth-tab {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  color: var(--muted);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.84rem;
  letter-spacing: -0.01em;
  transition: all var(--transition);
}

.auth-tab:hover { color: var(--ink-secondary); }

.auth-tab.is-active {
  background: var(--panel-raised);
  color: var(--ink);
  box-shadow: 0 1px 3px rgba(0,0,0,0.4);
}

.google-auth-button {
  width: 100%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 46px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--panel-raised);
  color: var(--ink);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.9rem;
  transition: all var(--transition);
}

.google-auth-button:hover {
  border-color: rgba(255,255,255,0.14);
  box-shadow: var(--shadow-sm);
}

.google-mark {
  width: 22px;
  height: 22px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  color: #4285f4;
  font-weight: 800;
  font-family: Arial, sans-serif;
  background: #fff;
  font-size: 0.85rem;
}

.auth-divider {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 16px 0;
  color: var(--muted);
  font-size: 0.8rem;
}

.auth-divider::before,
.auth-divider::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--line);
}

.auth-form { margin-top: 4px; }

/* ─── Pending invites chip ─── */
.pending-chip-list { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }

/* ─── Auth responsive ─── */
@media (max-width: 820px) {
  .auth-layout {
    grid-template-columns: 1fr;
    min-height: auto;
  }
  .auth-intro { padding: 32px 24px; }
}

/* ─── Dashboard responsive ─── */
@media (max-width: 900px) {
  .dashboard-grid {
    grid-template-columns: 1fr;
  }
  .review-assistant-hero {
    grid-template-columns: 1fr;
  }
  .review-summary-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .analytics-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 600px) {
  .container { padding: 20px 16px 100px; }
  .review-summary-grid { grid-template-columns: 1fr 1fr; }
  .analytics-grid { grid-template-columns: 1fr; }
}

/* ─── Theme Toggle Button ─── */
.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: var(--panel-raised);
  color: var(--ink-secondary);
  cursor: pointer;
  padding: 0;
  font-size: 0;
  line-height: 1;
  flex-shrink: 0;
  transition: all var(--transition);
}

.theme-toggle:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: var(--primary-dim);
  box-shadow: none;
  transform: none;
}

.theme-toggle svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

/* Moon shown in light mode (click to go dark); Sun shown in dark mode */
.theme-toggle .icon-sun  { display: none; }
.theme-toggle .icon-moon { display: block; }

[data-theme="dark"] .theme-toggle .icon-sun  { display: block; }
[data-theme="dark"] .theme-toggle .icon-moon { display: none; }

/* ─── Selection ─── */
::selection {
  background: rgba(0, 212, 160, 0.2);
  color: var(--ink);
}

/* ─── Scrollbar (Webkit) ─── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--line); border-radius: 999px; }
::-webkit-scrollbar-thumb:hover { background: var(--muted); }