/* ================================================
   IKRAA Design System v3
   — Light  = Maquette B "Light Purple"
   — Dark   = Maquette C "Neon Glass"
   ================================================ */

:root {
  --font: "Inter","Rubik",system-ui,-apple-system,sans-serif;

  /* Dark / Neon Glass (default) */
  --bg:          #0a0714;
  --surface:     rgba(255,255,255,.045);
  --card:        rgba(255,255,255,.045);
  --ink:         #f5f3ff;
  --muted:       #a89fc9;
  --accent:      #a855f7;
  --accent-2:    #f472b6;
  --accent-dark: #7c3aed;
  --accent-soft: rgba(168,85,247,.18);
  --border:      rgba(168,85,247,.28);
  --glass:       rgba(255,255,255,.05);
  --glass-blur:  18px;
  --progress-bg: rgba(255,255,255,.08);
  --shadow:      0 4px 24px rgba(124,58,237,.22);
  --shadow-sm:   0 12px 32px rgba(124,58,237,.18);
  --shadow-lg:   0 28px 64px rgba(124,58,237,.35);
  --glow:        0 0 0 1px rgba(168,85,247,.4), 0 0 28px rgba(168,85,247,.35);
  --radius-md:   16px;
  --radius-lg:   22px;
  --success:     #22c55e;
  --error:       #ef4444;
  --warning:     #f59e0b;
  --pill:        rgba(168,85,247,.22);
}

[data-theme="light"] {
  --bg:          #f5f3ff;
  --surface:     #ffffff;
  --card:        #ffffff;
  --ink:         #1e1b4b;
  --muted:       #6b7280;
  --accent:      #7c3aed;
  --accent-2:    #ec4899;
  --accent-soft: rgba(124,58,237,.10);
  --border:      rgba(124,58,237,.12);
  --glass:       rgba(255,255,255,.7);
  --glass-blur:  0px;
  --progress-bg: rgba(124,58,237,.12);
  --shadow:      0 4px 20px rgba(124,58,237,.10);
  --shadow-sm:   0 12px 24px rgba(15,23,42,.08);
  --shadow-lg:   0 25px 60px rgba(15,23,42,.14);
  --glow:        0 0 0 1px rgba(124,58,237,.3), 0 0 0 rgba(0,0,0,0);
  --pill:        #ddd6fe;
}

/* ── Ambiance Neon Glass (fond sombre) ───────── */
[data-theme="dark"] body {
  background:
    radial-gradient(ellipse 55% 45% at 15% -8%,  rgba(168,85,247,.20), transparent 60%),
    radial-gradient(ellipse 45% 38% at 100% 12%, rgba(244,114,182,.14), transparent 60%),
    radial-gradient(ellipse 40% 38% at 50% 105%, rgba(56,189,248,.10), transparent 60%),
    var(--bg);
  background-attachment: fixed;
}

/* ── Verre dépoli (glassmorphism) sur les surfaces sombres ── */
[data-theme="dark"] .card,
[data-theme="dark"] .question-card,
[data-theme="dark"] .teacher-card,
[data-theme="dark"] .metric-card,
[data-theme="dark"] .spotlight-card,
[data-theme="dark"] .resource-card,
[data-theme="dark"] .timeline-step,
[data-theme="dark"] .course-section,
[data-theme="dark"] .messages-thread,
[data-theme="dark"] .quiz-header,
[data-theme="dark"] .result-summary,
[data-theme="dark"] .auth-card {
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  box-shadow: var(--shadow), inset 0 1px 0 rgba(255,255,255,.05);
}

/* ── Reset ────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }
html { font-size: 16px; scroll-behavior: smooth; }

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font);
  background: var(--bg);
  color: var(--ink);
  line-height: 1.6;
}

img { max-width: 100%; display: block; }
p { margin: 0 0 1rem; }
a { color: var(--accent); text-decoration: none; transition: color .2s; }
a:hover { color: var(--accent-dark); }
button, input, select, textarea { font: inherit; color: inherit; }
button { cursor: pointer; border: none; background: none; }
main { display: block; width: 100%; }

/* ── Layout ───────────────────────────────── */
.page-container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 32px 18px 80px;
  display: flex;
  flex-direction: column;
  gap: 28px;
}

/* ── Forms ────────────────────────────────── */
input[type="text"],
input[type="email"],
input[type="password"],
input[type="tel"],
input[type="date"],
select,
textarea {
  width: 100%;
  padding: .85rem 1rem;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: rgba(255,255,255,.05);
  color: var(--ink);
  transition: border-color .2s, box-shadow .2s;
}

[data-theme="light"] input[type="text"],
[data-theme="light"] input[type="email"],
[data-theme="light"] input[type="password"],
[data-theme="light"] input[type="tel"],
[data-theme="light"] input[type="date"],
[data-theme="light"] select,
[data-theme="light"] textarea { background: #ffffff; }

input:focus, select:focus, textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(124,58,237,.18);
  outline: none;
}

/* Neutralise le fond imposé par l'autocomplétion du navigateur
   (sinon les champs remplis automatiquement restent clairs même en dark) */
input:-webkit-autofill,
input:-webkit-autofill:hover,
input:-webkit-autofill:focus {
  -webkit-text-fill-color: var(--ink);
  -webkit-box-shadow: 0 0 0 1000px rgba(255,255,255,.05) inset;
  box-shadow: 0 0 0 1000px rgba(255,255,255,.05) inset;
  caret-color: var(--ink);
  transition: background-color 9999s ease-in-out 0s;
}
[data-theme="light"] input:-webkit-autofill,
[data-theme="light"] input:-webkit-autofill:hover,
[data-theme="light"] input:-webkit-autofill:focus {
  -webkit-box-shadow: 0 0 0 1000px #ffffff inset;
  box-shadow: 0 0 0 1000px #ffffff inset;
}

select option { background: var(--surface); color: var(--ink); }
label { font-weight: 600; font-size: .95rem; color: var(--ink); }
form { display: flex; flex-direction: column; gap: 1rem; }
.field { display: flex; flex-direction: column; gap: 6px; }
.field small { font-size: .82rem; color: var(--muted); }
.field-hint { font-size: .78rem; color: var(--muted); }

.birthdate-group { display: grid; grid-template-columns: 1fr 1.4fr 1.1fr; gap: 8px; }
.birthdate-group select { width: 100%; }

.feature-emoji {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  margin-bottom: 12px;
  border-radius: 12px;
  background: var(--accent-soft);
  font-size: 1.35rem;
}

/* ── Card ─────────────────────────────────── */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 24px;
  box-shadow: var(--shadow);
  position: relative;
  overflow: hidden;
}
.card p { margin: 0; }

/* ── Page Hero ────────────────────────────── */
.page-hero {
  position: relative;
  overflow: hidden;
  padding: 48px 40px 40px;
  border-radius: 24px;
  background: linear-gradient(135deg, #0a1628 0%, #0e2044 50%, #0a1628 100%);
}

.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 80% at 85% 50%, rgba(124,58,237,.25) 0%, transparent 70%),
    radial-gradient(ellipse 40% 60% at 15% 80%, rgba(236,72,153,.18) 0%, transparent 70%);
  pointer-events: none;
}

.page-hero .eyebrow {
  font-size: .72rem;
  font-weight: 800;
  letter-spacing: .15em;
  text-transform: uppercase;
  color: #a78bfa;
  margin: 0 0 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.page-hero .eyebrow::before {
  content: '';
  display: inline-block;
  width: 24px; height: 2px;
  background: linear-gradient(90deg, #7c3aed, #ec4899);
  border-radius: 2px;
}

.page-hero h1 {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -.02em;
  margin: 0 0 12px;
  background: linear-gradient(90deg, #e879f9, #818cf8, #38bdf8);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.page-hero p {
  font-size: 1rem;
  color: rgba(255,255,255,.55);
  margin: 0 0 24px;
  max-width: 520px;
}

.page-hero .actions { margin: 0; }

.page-hero .button.ghost {
  color: #f1f5f9;
  border-color: rgba(255,255,255,.25);
}
.page-hero .button.ghost:hover {
  color: #f1f5f9;
  border-color: rgba(255,255,255,.45);
  background: rgba(255,255,255,.08);
}

/* ── Section heading ──────────────────────── */
.home-section { display: flex; flex-direction: column; gap: 16px; }
.section-heading { display: flex; flex-direction: column; gap: 6px; }

.section-heading .eyebrow,
.page-hero .eyebrow { color: #a78bfa; }

/* ── Admin pédagogie (matières / chapitres / cours) ──────────────────── */
.peda-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
@media (max-width: 900px) { .peda-grid { grid-template-columns: 1fr; } }
.peda-table-wrap { overflow-x: auto; margin-top: 16px; }
.peda-empty { color: var(--muted); font-style: italic; padding: 12px 0; }
.peda-actions { display: flex; gap: 8px; flex-wrap: wrap; }
.btn-icon { background: none; border: 1px solid var(--border); color: var(--muted); border-radius: 8px; padding: 6px 10px; font-size: .8rem; cursor: pointer; transition: all .15s; }
.btn-icon:hover { border-color: var(--accent); color: var(--accent); }
.btn-icon.danger:hover { border-color: #ef4444; color: #ef4444; }
.peda-edit-row { display: none; background: rgba(124,58,237,.05); }
.peda-edit-row.open { display: table-row; }
.peda-edit-row td { padding: 16px 14px 20px; }

.eyebrow {
  font-size: .72rem;
  font-weight: 800;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: #a78bfa;
  margin: 0;
}

.section-heading h2 {
  font-size: 1.4rem;
  font-weight: 800;
  margin: 0;
  color: var(--ink);
}

/* ── Buttons ──────────────────────────────── */
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: 999px;
  font-weight: 700;
  font-size: .95rem;
  transition: all .2s ease;
  text-decoration: none;
  white-space: nowrap;
  cursor: pointer;
  border: none;
}

.button.primary {
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  color: #fff;
  box-shadow: 0 8px 24px rgba(124,58,237,.35);
}
.button.primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(124,58,237,.5);
  color: #fff;
}
[data-theme="dark"] .button.primary {
  box-shadow: 0 8px 24px rgba(168,85,247,.45), 0 0 24px rgba(244,114,182,.25);
}
[data-theme="dark"] .button.primary:hover {
  box-shadow: 0 12px 32px rgba(168,85,247,.6), 0 0 36px rgba(244,114,182,.4);
}

.button.secondary { background: var(--accent-soft); color: var(--accent); }
.button.secondary:hover { background: rgba(124,58,237,.22); }

.button.ghost {
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--border);
}
.button.ghost:hover {
  border-color: rgba(124,58,237,.4);
  background: rgba(124,58,237,.08);
  color: var(--ink);
}

.button:disabled { opacity: .5; cursor: not-allowed; }

/* ── Progress bar ─────────────────────────── */
.progress-bar-wrap {
  width: 100%;
  height: 8px;
  border-radius: 8px;
  background: var(--progress-bg);
  overflow: hidden;
}
.progress-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  transition: width .3s ease;
  border-radius: 8px;
}

/* ── Lesson list ──────────────────────────── */
.link-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 8px; }
.link-list li { padding: 0; }

.lesson-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  border-radius: 14px;
  border: 1px solid transparent;
  background: rgba(124,58,237,.04);
  transition: all .2s ease;
}
.lesson-item:hover { border-color: var(--border); background: rgba(124,58,237,.09); }
.lesson-item--done { opacity: .85; }
.lesson-item--done .lesson-icon { color: var(--success); }
.lesson-item--pending .lesson-icon { color: var(--muted); }
.lesson-icon { font-size: 1.1rem; font-weight: 700; }
.lesson-item a { color: var(--ink); font-weight: 600; }
.lesson-item a:hover { color: var(--accent); }

/* ── Alerts ───────────────────────────────── */
.alert {
  padding: 14px 20px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: var(--surface);
  font-weight: 600;
  font-size: .95rem;
}
.alert.success { border-color: rgba(34,197,94,.3); background: rgba(34,197,94,.08); color: var(--success); }
.alert.error   { border-color: rgba(239,68,68,.3);  background: rgba(239,68,68,.08);  color: var(--error); }
.alert.warning { border-color: rgba(245,158,11,.3); background: rgba(245,158,11,.08); color: var(--warning); }

.empty-state { text-align: center; padding: 48px 24px; color: var(--muted); font-style: italic; }
.muted { color: var(--muted); }

/* ── Auth ─────────────────────────────────── */
/* ── Auth layout ──────────────────────────── */
/* ── Auth layout ─────────────────────────────────────────────────────────── */
@keyframes orb-float {
  0%, 100% { transform: translateY(0) scale(1); }
  50%       { transform: translateY(-24px) scale(1.06); }
}

.page-auth {
  display: flex;
  align-items: stretch;
  min-height: 100vh;
  background: #f5f3ff;
}
[data-theme="dark"] .page-auth {
  background:
    radial-gradient(ellipse 60% 50% at 50% 30%, rgba(168,85,247,.16), transparent 60%),
    #0a0714;
}

.auth-wrapper {
  width: 100%;
  display: flex;
  /* "safe" évite qu'un contenu plus haut que l'écran (ex. le long
     formulaire d'inscription) ne soit centré dans le négatif et masqué
     sous la navbar fixe : on retombe alors sur un alignement en haut. */
  align-items: safe center;
  justify-content: center;
  min-height: 100vh;
}

/* ── Form panel — carte de connexion centrée (Maquette C) ────────────────── */
.auth-form-side {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  padding: 48px 24px;
}

.auth-card {
  width: 100%;
  max-width: 420px;
  background: #fff;
  border: 1px solid rgba(124,58,237,.1);
  border-radius: 24px;
  padding: 48px 44px;
  box-shadow:
    0 2px 4px rgba(0,0,0,.04),
    0 8px 24px rgba(124,58,237,.08),
    0 32px 64px rgba(124,58,237,.06);
  position: relative;
  z-index: 0;
  overflow: visible;
}
[data-theme="dark"] .auth-card {
  background: rgba(20,18,35,.95);
  border-color: rgba(255,255,255,.08);
  box-shadow:
    0 0 30px rgba(168,85,247,.18),
    0 0 70px rgba(236,72,153,.10),
    0 20px 60px rgba(0,0,0,.55);
}

@media (max-width: 480px) {
  .auth-form-side { padding: 24px 16px; }
  .auth-card { padding: 32px 24px; border-radius: 20px; }
}

/* Eyebrow avec trait */
.auth-card .eyebrow {
  font-size: .7rem;
  font-weight: 800;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: #7c3aed;
  margin: 0 0 14px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.auth-card .eyebrow::before {
  content: '';
  display: inline-block;
  width: 22px; height: 2px;
  background: linear-gradient(90deg, #7c3aed, #ec4899);
  border-radius: 2px;
  flex-shrink: 0;
}

.auth-card h1 {
  font-size: 3rem;
  font-weight: 900;
  margin: 0 0 8px;
  color: #0f172a;
  letter-spacing: -.03em;
  line-height: 1.15;
}
[data-theme="dark"] .auth-card h1 { color: #ffffff; }

.auth-card > .muted {
  font-size: .95rem;
  margin: 0 0 36px;
  display: block;
  color: #64748b;
  line-height: 1.6;
}
[data-theme="dark"] .auth-card > .muted { color: #9ca3af; }

/* Champs */
.auth-card .field { gap: 8px; margin-bottom: 24px; }
.auth-card .field label {
  font-size: .86rem;
  font-weight: 600;
  color: #374151;
}
[data-theme="dark"] .auth-card .field label { color: rgba(255,255,255,.85); }

.auth-card .field input {
  height: 54px;
  border-radius: 14px;
  border: 1.5px solid #e2d9f3;
  padding: 0 14px;
  font-size: .96rem;
  background: #faf9ff;
  color: #0f172a;
  transition: all .25s ease;
  width: 100%;
  box-sizing: border-box;
}
[data-theme="dark"] .auth-card .field input {
  background: #171429;
  border: 1px solid rgba(255,255,255,.08);
  color: #f1f5f9;
}
.auth-card .field input::placeholder { color: #b0a8c8; }
[data-theme="dark"] .auth-card .field input::placeholder { color: #6b7280; }
.auth-card .field input:hover { border-color: #a78bfa; }
.auth-card .field input:focus {
  outline: none;
  border-color: #7c3aed;
  background: #fff;
  box-shadow: 0 0 0 4px rgba(124,58,237,.13);
}
[data-theme="dark"] .auth-card .field input:focus {
  background: #1c1830;
  border-color: #8b5cf6;
  box-shadow: 0 0 0 3px rgba(139,92,246,.15);
}

.auth-card .field input:-webkit-autofill,
.auth-card .field input:-webkit-autofill:hover,
.auth-card .field input:-webkit-autofill:focus {
  -webkit-text-fill-color: #0f172a;
  -webkit-box-shadow: 0 0 0 1000px #faf9ff inset;
  box-shadow: 0 0 0 1000px #faf9ff inset;
  caret-color: #0f172a;
  transition: background-color 9999s ease-in-out 0s;
}
[data-theme="dark"] .auth-card .field input:-webkit-autofill,
[data-theme="dark"] .auth-card .field input:-webkit-autofill:hover,
[data-theme="dark"] .auth-card .field input:-webkit-autofill:focus {
  -webkit-text-fill-color: #f1f5f9;
  -webkit-box-shadow: 0 0 0 1000px #171429 inset;
  box-shadow: 0 0 0 1000px #171429 inset;
  caret-color: #f1f5f9;
}

/* Bouton show/hide password */
.field-password-wrapper { position: relative; }
.field-password-wrapper input { padding-right: 48px !important; }
.field-password-toggle {
  position: absolute;
  right: 14px; top: 50%;
  transform: translateY(-50%);
  background: none; border: none;
  cursor: pointer;
  color: #9ca3af;
  padding: 4px;
  display: flex;
  align-items: center;
  transition: color .25s ease;
}
.field-password-toggle:hover { color: #7c3aed; }
[data-theme="dark"] .field-password-toggle { color: #9ca3af; }
[data-theme="dark"] .field-password-toggle:hover { color: #a855f7; }

/* Lien "mot de passe oublié" */
.auth-card .field a.muted {
  transition: color .25s ease;
}
[data-theme="dark"] .auth-card .field a.muted:hover { color: #c084fc; }

/* Bouton connexion */
.auth-card .button.primary {
  width: 100%;
  height: 50px;
  margin-top: 8px;
  background: linear-gradient(135deg, #7c3aed 0%, #a855f7 100%);
  border: none;
  border-radius: 14px;
  font-size: 1rem;
  font-weight: 700;
  color: #fff;
  cursor: pointer;
  transition: all .25s ease;
  box-shadow: 0 4px 16px rgba(124,58,237,.32);
  letter-spacing: .01em;
}
.auth-card .button.primary:hover {
  background: linear-gradient(135deg, #6d28d9 0%, #9333ea 100%);
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(124,58,237,.48);
}
.auth-card .button.primary:active {
  transform: translateY(0);
  box-shadow: 0 4px 12px rgba(124,58,237,.24);
}
[data-theme="dark"] .auth-card .button.primary {
  height: 58px;
  border-radius: 16px;
  background: linear-gradient(90deg, #7c3aed, #a855f7, #ec4899);
  box-shadow: 0 10px 30px rgba(168,85,247,.35);
}
[data-theme="dark"] .auth-card .button.primary:hover {
  background: linear-gradient(90deg, #7c3aed, #a855f7, #ec4899);
  transform: translateY(-2px);
  box-shadow: 0 14px 40px rgba(168,85,247,.5);
}

.form-footer {
  text-align: center;
  font-size: .87rem;
  color: #64748b;
  margin: 18px 0 0;
}
.form-footer a {
  color: #7c3aed;
  font-weight: 600;
  text-decoration: none;
  transition: color .25s ease;
}
.form-footer a:hover { text-decoration: underline; }
[data-theme="dark"] .form-footer { color: #9ca3af; }
[data-theme="dark"] .form-footer a { color: #a855f7; }
[data-theme="dark"] .form-footer a:hover { color: #c084fc; }

.success-message, .error-message {
  padding: 12px 16px;
  border-radius: 12px;
  font-weight: 600;
  font-size: .9rem;
  margin-bottom: 16px;
}
.success-message { background: rgba(34,197,94,.1); border: 1px solid rgba(34,197,94,.3); color: var(--success); }
.error-message   { background: rgba(239,68,68,.1);  border: 1px solid rgba(239,68,68,.3);  color: var(--error); }

/* ── Quiz ─────────────────────────────────── */
.quiz-page { padding-top: 24px; }
.quiz-back { margin-bottom: 8px; }

.quiz-header {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 24px;
  padding: 32px;
  background: linear-gradient(135deg, rgba(124,58,237,.15), rgba(236,72,153,.08));
  border: 1px solid rgba(124,58,237,.25);
  border-radius: 20px;
}
.quiz-header-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}
.quiz-meta-badges {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}
.quiz-difficulty-badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .04em;
  text-transform: uppercase;
}
.badge-easy   { background: rgba(34,197,94,.15);  color: #22c55e; border: 1px solid rgba(34,197,94,.3); }
.badge-medium { background: rgba(234,179,8,.15);   color: #eab308; border: 1px solid rgba(234,179,8,.3); }
.badge-hard   { background: rgba(239,68,68,.15);   color: #ef4444; border: 1px solid rgba(239,68,68,.3); }
.quiz-timer-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: .75rem;
  font-weight: 600;
  background: rgba(124,58,237,.15);
  color: var(--accent);
  border: 1px solid rgba(124,58,237,.3);
}
.quiz-countdown {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 54px;
  padding: 4px 10px;
  border-radius: 20px;
  font-size: .85rem;
  font-weight: 700;
  background: rgba(124,58,237,.15);
  color: var(--accent);
  border: 1px solid rgba(124,58,237,.3);
  transition: background .3s, color .3s, border-color .3s;
}
.quiz-countdown.countdown-urgent {
  background: rgba(239,68,68,.2);
  color: #ef4444;
  border-color: rgba(239,68,68,.4);
  animation: pulse-urgent .5s ease-in-out infinite alternate;
}
@keyframes pulse-urgent {
  from { opacity: 1; }
  to   { opacity: .6; }
}

.quiz-title {
  font-size: 1.8rem;
  font-weight: 900;
  margin: 0;
  background: linear-gradient(90deg, #e879f9, #818cf8);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.quiz-description { margin: 0; color: var(--muted); }
.quiz-form { display: flex; flex-direction: column; gap: 20px; margin-bottom: 24px; }

.question-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 28px;
  box-shadow: var(--shadow);
  position: relative;
  overflow: hidden;
}
.question-header { display: flex; align-items: center; justify-content: space-between; gap: 8px; margin-bottom: 12px; }
.question-number { font-size: .72rem; font-weight: 800; color: #a78bfa; text-transform: uppercase; letter-spacing: .1em; }
.answer-hint { font-size: .7rem; font-weight: 600; color: var(--muted); background: rgba(124,58,237,.1); border: 1px solid rgba(124,58,237,.2); padding: 2px 8px; border-radius: 20px; white-space: nowrap; }
.question-title  { font-size: 1.1rem; font-weight: 700; margin: 0 0 20px; }
.choices { display: flex; flex-direction: column; gap: 10px; margin-bottom: 16px; }

.choice {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: rgba(124,58,237,.03);
  cursor: pointer;
  transition: all .2s ease;
}
.choice:hover { border-color: rgba(124,58,237,.4); background: rgba(124,58,237,.08); }
.choice input[type="checkbox"],
.choice input[type="radio"] { width: 18px; height: 18px; cursor: pointer; accent-color: var(--accent); }
.choice label { margin: 0; font-weight: 500; cursor: pointer; }
.choice.correct { border-color: rgba(34,197,94,.5); background: rgba(34,197,94,.08); }
.choice.wrong   { border-color: rgba(239,68,68,.5);  background: rgba(239,68,68,.08); }

/* Sélection — anneau néon en mode sombre (Neon Glass)
   :not(.correct):not(.wrong) : une fois la correction affichée, le vert/rouge
   doit rester visible sur le choix coché, pas être recouvert par le halo de
   sélection neutre (même spécificité, cette règle passait après dans la cascade). */
.choice:has(input:checked):not(.correct):not(.wrong) {
  border-color: var(--accent);
  background: linear-gradient(90deg, var(--accent-soft), rgba(244,114,182,.08));
}
[data-theme="dark"] .choice:has(input:checked):not(.correct):not(.wrong) {
  box-shadow: var(--glow);
}
.choice-explanation { display: block; font-size: .85rem; font-style: italic; color: var(--muted); margin-top: 4px; }

.question-explanation {
  padding: 14px 16px;
  border-radius: 12px;
  background: rgba(124,58,237,.08);
  border: 1px solid rgba(124,58,237,.2);
  margin-top: 14px;
}
.question-explanation p  { margin: 0 0 8px; font-size: .9rem; }
.question-explanation ul { margin: 6px 0; padding-left: 18px; }
.question-explanation li { margin: 3px 0; font-size: .9rem; }

.text-input { padding: 10px 12px !important; border-radius: 10px !important; }

.result-summary {
  background: rgba(34,197,94,.08);
  border: 1px solid rgba(34,197,94,.3);
  border-radius: 16px;
  padding: 20px;
  margin-bottom: 24px;
}
.result-summary strong { display: block; font-size: 1rem; font-weight: 700; color: var(--success); margin-bottom: 10px; }
.result-details { display: flex; flex-direction: column; gap: 6px; font-size: .95rem; margin-bottom: 10px; }
.encouragement-message { margin: 10px 0 0; font-style: italic; font-size: .95rem; }

.quiz-review { display: flex; flex-direction: column; gap: 16px; }
.quiz-review h2 { font-size: 1.5rem; font-weight: 800; margin: 0; }

.question-badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 8px;
  font-size: .72rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .05em;
}
.question-badge.success { background: rgba(34,197,94,.15); color: var(--success); }
.question-badge.error   { background: rgba(239,68,68,.15);  color: var(--error); }

.quiz-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 16px; }
.actions { display: flex; gap: 12px; flex-wrap: wrap; }

/* ── Theme toggle ─────────────────────────── */
.theme-toggle {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 1200;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--ink);
  font-size: 1.2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: var(--shadow-sm);
  transition: all .2s ease;
}
.theme-toggle:hover {
  transform: scale(1.1);
  box-shadow: 0 8px 24px rgba(124,58,237,.35);
  border-color: rgba(124,58,237,.4);
}

/* Sur mobile, le bouton flottant recouvre le contenu qui défile en dessous.
   On le fait défiler avec la page (ancré en haut) plutôt que de le laisser
   fixe par-dessus les cartes. */
@media (max-width: 640px) {
  body > .theme-toggle {
    position: absolute;
    top: 20px;
    right: 20px;
    bottom: auto;
  }
}

/* ── Contact ──────────────────────────────── */
.contact-page .card { max-width: 560px; margin: 0 auto; }
.contact-form-card h1 {
  font-size: 1.8rem;
  font-weight: 900;
  margin: 0 0 8px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.contact-form-card .muted { margin-bottom: 24px; display: block; }

/* ── Responsive ───────────────────────────── */
@media (max-width: 768px) {
  .page-container { padding: 20px 12px 56px; }
  .page-hero { padding: 32px 20px 28px; }
  .page-hero h1 { font-size: 1.8rem; }
  .quiz-form { gap: 14px; }
  .question-card { padding: 20px; }
  .auth-card { padding: 28px 20px; }
  .quiz-header { padding: 20px; }
}

@media (max-width: 480px) {
  .page-container { padding: 14px 12px 40px; }
  .auth-card { border-radius: 16px; }
  .card { padding: 16px; }
  .actions { flex-direction: column; }
  .button { width: 100%; }
  .quiz-title { font-size: 1.4rem; }
}

/* ── Course Detail ────────────────────────── */
.course-detail-layout {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 28px;
  align-items: start;
}
.course-detail-main { display: flex; flex-direction: column; gap: 20px; }
.course-detail-aside { position: sticky; top: 20px; }

/* Badges */
.course-top { display: flex; flex-direction: column; gap: 20px; }
.course-badges { display: flex; flex-wrap: wrap; gap: 8px; }

.badge {
  display: inline-block;
  padding: 5px 14px;
  border-radius: 999px;
  font-size: .72rem;
  font-weight: 700;
  background: var(--accent-soft);
  color: #a78bfa;
  border: 1px solid rgba(124,58,237,.25);
  letter-spacing: .06em;
  text-transform: uppercase;
}
.badge.muted {
  background: var(--glass);
  color: var(--muted);
  border-color: var(--border);
}

/* Quickfacts */
.course-quickfacts {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}
.course-fact {
  padding: 18px 14px;
  background: var(--accent-soft);
  border: 1px solid rgba(124,58,237,.2);
  border-radius: 16px;
  text-align: center;
}
.course-fact-label {
  font-size: .65rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--muted);
  margin: 0 0 6px;
}
.course-fact-value {
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--ink);
  margin: 0;
}

/* Content sections */
.course-section {
  padding: 22px 24px;
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: 18px;
}
.course-section h2 {
  font-size: .7rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .12em;
  color: #a78bfa;
  margin: 0 0 12px;
}
.course-section h3 {
  font-size: .7rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .12em;
  color: #a78bfa;
  margin: 0 0 10px;
}
.course-section p { margin: 0; line-height: 1.75; }

/* Teacher sidebar card */
.teacher-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 22px;
  padding: 24px;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: 18px;
  position: relative;
  overflow: hidden;
}
.teacher-card-header {
  display: flex;
  align-items: center;
  gap: 14px;
}
.teacher-avatar {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.35rem;
  font-weight: 900;
  color: #fff;
  flex-shrink: 0;
  box-shadow: 0 4px 16px rgba(124,58,237,.45);
}
.teacher-card-meta { display: flex; flex-direction: column; gap: 3px; min-width: 0; }
.teacher-name { font-size: 1.05rem; font-weight: 800; margin: 0; color: var(--ink); }
.teacher-rating { font-size: .82rem; margin: 0; color: var(--muted); }
.teacher-verified {
  font-size: .72rem;
  font-weight: 700;
  color: var(--success);
  margin: 0;
  letter-spacing: .03em;
}

.course-card__image-wrapper { border-radius: 14px; overflow: hidden; }
.course-card__image { width: 100%; object-fit: cover; aspect-ratio: 16/7; display: block; }

.course-summary {
  padding: 16px;
  background: var(--accent-soft);
  border: 1px solid rgba(124,58,237,.2);
  border-radius: 14px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.course-price {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
}
.course-price-label { font-size: .75rem; font-weight: 600; color: var(--muted); }
.course-price-value {
  font-size: 1.5rem;
  font-weight: 900;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.course-meta {
  list-style: none;
  margin: 0;
  padding: 12px 0 0;
  border-top: 1px solid rgba(124,58,237,.2);
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.course-meta li {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: .85rem;
  color: var(--muted);
  font-weight: 500;
}
.course-meta-icon { font-size: .95rem; }

.course-card__details {
  margin: 0;
  display: flex;
  flex-direction: column;
}
.course-card__details > div {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
}
.course-card__details > div:last-child { border-bottom: none; }
.course-card__details dt {
  font-size: .72rem;
  font-weight: 700;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: .06em;
  flex-shrink: 0;
  padding-top: 2px;
}
.course-card__details dd {
  margin: 0;
  font-size: .85rem;
  font-weight: 600;
  text-align: right;
  color: var(--ink);
}

.teacher-contact-form { margin: 0; }
.teacher-contact-form button,
.teacher-contact-form .button { width: 100%; }

.masked-phone { font-size: .88rem; font-weight: 600; }
.masked-phone-hint {
  display: block;
  font-size: .74rem;
  color: var(--muted);
  margin-top: 3px;
  font-style: italic;
}

.teacher-contact-note {
  font-size: .75rem;
  text-align: center;
  line-height: 1.55;
  margin: 0;
  padding: 0 4px;
}

/* Stripe error in hero */
.stripe-error {
  margin-top: 12px;
  padding: 10px 16px;
  background: rgba(239,68,68,.08);
  border: 1px solid rgba(239,68,68,.25);
  border-radius: 12px;
  color: var(--error);
  font-size: .88rem;
  font-weight: 500;
}

@media (max-width: 920px) {
  .course-detail-layout { grid-template-columns: 1fr; }
  .course-detail-aside { position: static; }
}
@media (max-width: 600px) {
  .course-quickfacts { grid-template-columns: 1fr 1fr; }
  .course-detail-layout { gap: 16px; }
}

/* ── Admin — tables & métriques ──────────────── */
.metrics {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 16px;
  margin-bottom: 16px;
}
.metric-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  text-align: center;
}
.metric-card strong {
  font-size: 2rem;
  font-weight: 900;
  background: linear-gradient(90deg, #818cf8, #e879f9);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.1;
}
.metric-card span { font-size: .82rem; color: var(--muted); }
[data-theme="dark"] .metric-card:hover,
[data-theme="dark"] .card:hover { border-color: rgba(168,85,247,.5); }

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: .88rem;
}
.data-table th {
  text-align: left;
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
  color: var(--muted);
  font-weight: 600;
  font-size: .75rem;
  text-transform: uppercase;
  letter-spacing: .05em;
  white-space: nowrap;
}
.data-table td {
  padding: 12px 14px;
  border-bottom: 1px solid rgba(255,255,255,.05);
  vertical-align: middle;
}
.data-table tbody tr:last-child td { border-bottom: none; }
.data-table tbody tr:hover { background: rgba(255,255,255,.03); }

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  align-items: end;
}
.form-inline {
  display: flex;
  align-items: flex-end;
  gap: 16px;
  flex-wrap: wrap;
}

/* ── Chart legend ────────────────────────────── */
.student-chart-legend {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: .85rem;
  color: var(--muted);
  flex-wrap: wrap;
  justify-content: center;
}
.legend-dot {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}

/* ── Messagerie ──────────────────────────────── */
.messages-layout {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 0;
  padding: 0;
  overflow: hidden;
  min-height: 520px;
}
.messages-layout > aside {
  border-right: 1px solid var(--border);
  padding: 20px 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  overflow-y: auto;
}
.messages-layout > section {
  padding: 20px 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  overflow: hidden;
}
.messages-thread-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin: 0;
  padding: 0;
}
.messages-thread-item a.chip {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 10px 12px;
  border-radius: 10px;
  background: var(--glass);
  border: 1px solid var(--border);
  text-decoration: none;
  transition: background .15s;
}
.messages-thread-item a.chip:hover,
.messages-thread-item a.chip.chip--active {
  background: var(--accent-soft);
  border-color: var(--accent);
}
.messages-thread-title {
  font-size: .88rem;
  font-weight: 600;
  color: var(--ink);
}
.messages-thread-status {
  font-size: .72rem;
  color: var(--muted);
}

/* Zone de conversation */
.messages-thread {
  flex: 1;
  display: flex;
  flex-direction: column;
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
}
.messages-list {
  flex: 1;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  overflow-y: auto;
  max-height: 380px;
  scroll-behavior: smooth;
}

/* Séparateur de jour */
.messages-day-separator {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 12px 0 8px;
  color: var(--muted);
  font-size: .72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .06em;
}
.messages-day-separator::before,
.messages-day-separator::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}

/* Rangée de message */
.message-row {
  display: flex;
  margin-bottom: 2px;
}
.message-row--mine {
  justify-content: flex-end;
}
.message-row--other {
  justify-content: flex-start;
}

/* Bulle */
.message-bubble {
  max-width: 68%;
  display: flex;
  flex-direction: column;
  gap: 3px;
}
.message-row--mine .message-bubble {
  align-items: flex-end;
}
.message-row--other .message-bubble {
  align-items: flex-start;
}

/* Nom de l'expéditeur */
.message-author {
  font-size: .72rem;
  font-weight: 700;
  color: var(--muted);
  margin: 0 0 2px;
  padding: 0 4px;
}
.message-row--mine .message-author {
  color: rgba(167,139,250,.8);
}

/* Contenu du message */
.message-content {
  margin: 0;
  padding: 10px 14px;
  border-radius: 18px;
  font-size: .9rem;
  line-height: 1.5;
  word-break: break-word;
  white-space: pre-wrap;
}
.message-row--mine .message-content {
  background: linear-gradient(135deg, #7c3aed, #a855f7);
  color: #fff;
  border-bottom-right-radius: 4px;
}
.message-row--other .message-content {
  background: rgba(255,255,255,.07);
  color: var(--ink);
  border: 1px solid var(--border);
  border-bottom-left-radius: 4px;
}

/* Heure */
.message-meta {
  font-size: .68rem;
  color: var(--muted);
  margin: 0;
  padding: 0 4px;
}

/* Message privacy */
.messages-privacy {
  font-size: .78rem;
  padding: 6px 12px;
  background: rgba(245,158,11,.07);
  border: 1px solid rgba(245,158,11,.2);
  border-radius: 8px;
  color: #fbbf24;
  margin: 0;
}

@media (max-width: 700px) {
  .messages-layout {
    grid-template-columns: 1fr;
  }
  .messages-layout > aside {
    border-right: none;
    border-bottom: 1px solid var(--border);
  }
  .message-bubble { max-width: 88%; }
}

/* ── Page "En savoir plus" ─────────────────── */
.page-detail { gap: 48px; }

.detail-section { display: flex; flex-direction: column; gap: 20px; }

.spotlight-grid,
.resource-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
}

.timeline {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
}

.spotlight-card,
.resource-card,
.timeline-step {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow);
}

.spotlight-card h3,
.resource-card h3,
.timeline-step strong {
  display: block;
  font-size: 1.05rem;
  font-weight: 800;
  margin: 0 0 8px;
  color: var(--ink);
}

.spotlight-card p,
.resource-card p,
.timeline-step p {
  font-size: .9rem;
  color: var(--muted);
  margin: 0;
  line-height: 1.5;
}

.cta.detail-cta {
  text-align: center;
  padding: 48px 40px;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, rgba(124,58,237,.16), rgba(236,72,153,.10));
  border: 1px solid rgba(124,58,237,.25);
}
.cta.detail-cta .eyebrow { justify-content: center; }
.cta.detail-cta h2 { margin: 0 0 8px; }
.cta.detail-cta p { color: var(--muted); max-width: 480px; margin: 0 auto 24px; }
.cta.detail-cta .actions { justify-content: center; }

@media (max-width: 640px) {
  .cta.detail-cta { padding: 36px 24px; }
}