/*
 * Design tokens portés de mobile/src/theme/design.ts (« Clair & aéré premium »)
 * pour garder le site vitrine visuellement cohérent avec l'application.
 */
:root {
  --canvas: #FBFBFD;
  --surface: #FFFFFF;
  --surface-alt: #F4F5F7;

  --ink: #14161B;
  --ink-soft: #5A6472;
  --ink-muted: #9098A5;

  --border: #ECEDF1;
  --border-strong: #DFE1E7;

  --primary: #20314F;
  --primary-pressed: #142137;
  --primary-soft: #F0F3F7;
  --primary-tint: #D0D8E7;
  --on-primary: #FFFFFF;

  --success: #12B76A;
  --success-soft: #E7F7EF;
  --warning: #F79009;
  --danger: #F04438;

  --gold: #B8862B;
  --gold-soft: #FBF2DD;

  --radius-sm: 10px;
  --radius-md: 14px;
  --radius-lg: 18px;
  --radius-xl: 24px;
  --radius-pill: 999px;

  --shadow-card: 0 4px 14px rgba(10, 26, 58, 0.05);
  --shadow-raised: 0 8px 20px rgba(10, 26, 58, 0.08);
  --shadow-floating: 0 14px 32px rgba(10, 26, 58, 0.14);

  --max-width: 1180px;
  --font-display: 'Sora', 'DM Sans', system-ui, sans-serif;
  --font-body: 'DM Sans', system-ui, sans-serif;
  --font-hand: 'Caveat', cursive;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--canvas);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { margin: 0; padding: 0; list-style: none; }
button { font-family: inherit; cursor: pointer; }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--ink);
  margin: 0;
  letter-spacing: -0.3px;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.overline {
  display: inline-block;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 12px;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 12px;
}

.section {
  padding: 96px 0;
}
.section-header {
  max-width: 640px;
  margin: 0 auto 56px;
  text-align: center;
}
.section-header h2 {
  font-size: 36px;
  line-height: 1.2;
  margin-bottom: 14px;
}
.section-header p {
  color: var(--ink-soft);
  font-size: 17px;
  margin: 0;
}
.section-alt { background: var(--surface-alt); }

/* Boutons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 26px;
  border-radius: var(--radius-pill);
  font-weight: 700;
  font-size: 15px;
  border: none;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
  white-space: nowrap;
}
.btn-primary {
  background: var(--primary);
  color: var(--on-primary);
  box-shadow: var(--shadow-raised);
}
.btn-primary:hover { background: var(--primary-pressed); transform: translateY(-1px); }
.btn-ghost {
  background: transparent;
  color: var(--primary);
  border: 1.5px solid var(--border-strong);
}
.btn-ghost:hover { background: var(--primary-soft); border-color: var(--primary-tint); }
.btn-gold {
  background: var(--gold);
  color: #fff;
  box-shadow: var(--shadow-raised);
}
.btn-gold:hover { transform: translateY(-1px); }
.btn-lg { padding: 16px 32px; font-size: 16px; }

/* Cartes */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
}

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(251, 251, 253, 0.85);
  backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--border);
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
  gap: 12px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 18px;
  color: var(--primary);
  white-space: nowrap;
  flex-shrink: 0;
}
.brand img { width: 40px; height: 40px; border-radius: 10px; flex-shrink: 0; }
.main-nav { display: flex; align-items: center; gap: 32px; }
.main-nav a {
  font-size: 14px;
  font-weight: 600;
  color: var(--ink-soft);
  transition: color 0.15s ease;
}
.main-nav a:hover { color: var(--primary); }
.header-actions { display: flex; align-items: center; gap: 12px; }
.nav-toggle {
  display: none;
  flex-direction: column;
  background: none;
  border: none;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.nav-toggle span, .nav-toggle::before, .nav-toggle::after {
  content: '';
  display: block;
  width: 22px;
  height: 2px;
  background: var(--ink);
  border-radius: 2px;
  transition: transform 0.2s ease, opacity 0.2s ease;
}
.nav-toggle span { margin: 5px 0; }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  overflow: hidden;
  padding: 88px 0 100px;
}
.hero-bg-text {
  position: absolute;
  inset: 0;
  z-index: 0;
  opacity: 0.5;
  overflow: hidden;
  pointer-events: none;
}
.hero .container { position: relative; z-index: 1; }
.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 56px;
  align-items: center;
}
.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--primary-soft);
  color: var(--primary);
  font-size: 13px;
  font-weight: 700;
  padding: 8px 16px;
  border-radius: var(--radius-pill);
  margin-bottom: 22px;
}
.hero h1 {
  font-size: 52px;
  line-height: 1.08;
  margin-bottom: 22px;
}
.hero h1 .accent { color: var(--primary); }
.hero h1 .script {
  font-family: var(--font-hand);
  font-weight: 700;
  color: var(--gold);
  font-size: 1.15em;
}
.hero p.lead {
  font-size: 18px;
  color: var(--ink-soft);
  max-width: 480px;
  margin-bottom: 34px;
}
.hero-ctas { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 40px; }
.hero-trust {
  display: flex;
  gap: 28px;
  flex-wrap: wrap;
}
.hero-trust .stat strong {
  display: block;
  font-family: var(--font-display);
  font-size: 24px;
  color: var(--primary);
}
.hero-trust .stat span {
  font-size: 13px;
  color: var(--ink-muted);
}
.hero-visual { position: relative; }

/* ---------- Phone mockup ---------- */
.phone {
  position: relative;
  width: 300px;
  margin: 0 auto;
  background: var(--primary);
  border-radius: 42px;
  padding: 14px;
  box-shadow: var(--shadow-floating);
}
.phone-notch {
  position: absolute;
  top: 14px;
  left: 50%;
  transform: translateX(-50%);
  width: 90px;
  height: 22px;
  background: var(--primary-pressed);
  border-radius: var(--radius-pill);
  z-index: 2;
}
.phone-screen {
  background: var(--canvas);
  border-radius: 30px;
  overflow: hidden;
  padding: 30px 18px 18px;
  min-height: 520px;
}
.phone-screen .ps-label {
  font-size: 11px;
  color: var(--ink-muted);
  text-transform: uppercase;
  letter-spacing: 0.8px;
  font-weight: 700;
  margin-bottom: 6px;
}
.phone-screen .ps-title {
  font-family: var(--font-display);
  font-size: 20px;
  margin-bottom: 18px;
}
.dictation-line {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 12px 14px;
  margin-bottom: 10px;
  font-size: 13px;
  color: var(--ink-soft);
}
.dictation-line .dot { width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; }
.dictation-line.ok .dot { background: var(--success); }
.dictation-line.err .dot { background: var(--danger); }
.dictation-line.pending .dot { background: var(--border-strong); }
.phone-score {
  margin-top: 18px;
  background: var(--primary);
  color: #fff;
  border-radius: var(--radius-md);
  padding: 16px;
  text-align: center;
}
.phone-score strong { font-family: var(--font-display); font-size: 30px; display: block; }
.phone-score span { font-size: 12px; opacity: 0.8; }
.floating-badge {
  position: absolute;
  background: var(--surface);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-raised);
  padding: 12px 16px;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  font-weight: 700;
  border: 1px solid var(--border);
}
.floating-badge.xp { top: 8%; right: -6%; color: var(--gold); }
.floating-badge.notion { bottom: 10%; left: -10%; color: var(--primary); max-width: 200px; }
.floating-badge .icon { font-size: 18px; }

/* ---------- Logos strip ---------- */
.audience-strip {
  padding: 40px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.audience-strip .container {
  display: flex;
  justify-content: space-around;
  flex-wrap: wrap;
  gap: 24px;
  text-align: center;
}
.audience-strip .aud-item { color: var(--ink-muted); font-size: 14px; font-weight: 600; }
.audience-strip .aud-item strong { color: var(--ink); }

/* ---------- Feature grid ---------- */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.feature-card {
  padding: 32px 26px;
}
.feature-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background: var(--primary-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}
.feature-icon svg { width: 26px; height: 26px; }
.feature-card h3 { font-size: 18px; margin-bottom: 10px; }
.feature-card p { color: var(--ink-soft); font-size: 14.5px; margin: 0; }

/* ---------- Steps (comment ça marche) ---------- */
.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  counter-reset: step;
}
.step { position: relative; padding: 30px 22px; }
.step-num {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  font-family: var(--font-display);
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  font-size: 15px;
}
.step h3 { font-size: 16px; margin-bottom: 8px; }
.step p { color: var(--ink-soft); font-size: 14px; margin: 0; }
.step-connector {
  display: none;
}

/* ---------- Sources de dictées ---------- */
.source-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.source-card {
  padding: 30px;
  position: relative;
  overflow: hidden;
}
.source-card .tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  padding: 5px 12px;
  border-radius: var(--radius-pill);
  margin-bottom: 16px;
}
.source-card.editorial .tag { background: var(--primary-soft); color: var(--primary); }
.source-card.ocr .tag { background: var(--success-soft); color: var(--success); }
.source-card.ia .tag { background: var(--gold-soft); color: var(--gold); }
.source-card h3 { font-size: 18px; margin-bottom: 10px; }
.source-card p { color: var(--ink-soft); font-size: 14.5px; }
.source-illustration { margin-bottom: 18px; height: 90px; }

/* ---------- Niveaux ---------- */
.niveaux-scroll {
  display: flex;
  gap: 14px;
  overflow-x: auto;
  padding: 8px 4px 20px;
  scrollbar-width: thin;
}
.niveau-chip {
  flex: 0 0 auto;
  min-width: 108px;
  text-align: center;
  padding: 18px 14px;
  border-radius: var(--radius-lg);
  background: var(--surface);
  border: 1px solid var(--border);
}
.niveau-chip .emoji { font-size: 26px; display: block; margin-bottom: 8px; }
.niveau-chip .label { font-weight: 700; font-size: 14px; }
.niveau-chip .cycle { font-size: 11px; color: var(--ink-muted); margin-top: 2px; display: block; }

/* ---------- Notions / personnalisation ---------- */
.notion-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}
.notion-list li {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 16px 0;
  border-bottom: 1px solid var(--border);
}
.notion-list li:last-child { border-bottom: none; }
.notion-check {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--success-soft);
  color: var(--success);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 700;
}
.notion-list strong { display: block; font-size: 15px; margin-bottom: 3px; }
.notion-list span { font-size: 13.5px; color: var(--ink-soft); }

/* ---------- Public cible ---------- */
.audience-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.audience-card {
  padding: 34px 28px;
  text-align: left;
}
.audience-card .emoji-badge {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  background: var(--primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
  margin-bottom: 20px;
}
.audience-card h3 { font-size: 18px; margin-bottom: 10px; }
.audience-card ul { margin-top: 14px; }
.audience-card ul li {
  font-size: 14px;
  color: var(--ink-soft);
  padding: 6px 0 6px 22px;
  position: relative;
}
.audience-card ul li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--success);
  font-weight: 700;
}

/* ---------- Pricing ---------- */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  align-items: stretch;
}
.price-card {
  padding: 36px 30px;
  display: flex;
  flex-direction: column;
  position: relative;
}
.price-card.featured {
  border: 2px solid var(--primary);
  box-shadow: var(--shadow-floating);
  transform: translateY(-8px);
}
.price-card .featured-tag {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--primary);
  color: #fff;
  font-size: 11.5px;
  font-weight: 700;
  padding: 6px 16px;
  border-radius: var(--radius-pill);
  white-space: nowrap;
}
.price-card h3 { font-size: 18px; margin-bottom: 6px; }
.price-card .price { margin: 18px 0 6px; }
.price-card .price strong { font-family: var(--font-display); font-size: 40px; }
.price-card .price span { font-size: 14px; color: var(--ink-muted); }
.price-card .desc { font-size: 13.5px; color: var(--ink-soft); margin-bottom: 22px; min-height: 40px; }
.price-card ul { margin-bottom: 26px; flex-grow: 1; }
.price-card ul li {
  font-size: 14px;
  color: var(--ink-soft);
  padding: 7px 0 7px 24px;
  position: relative;
}
.price-card ul li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--success);
  font-weight: 700;
}
.pricing-note {
  text-align: center;
  color: var(--ink-muted);
  font-size: 13.5px;
  margin-top: 32px;
}
.pricing-note a { color: var(--primary); font-weight: 700; }

/* ---------- FAQ ---------- */
.faq-list { max-width: 760px; margin: 0 auto; }
.faq-item {
  border-bottom: 1px solid var(--border);
}
.faq-question {
  width: 100%;
  background: none;
  border: none;
  padding: 22px 4px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  text-align: left;
  font-size: 16px;
  font-weight: 700;
  color: var(--ink);
}
.faq-question .chevron {
  flex-shrink: 0;
  margin-left: 16px;
  transition: transform 0.2s ease;
  color: var(--ink-muted);
}
.faq-item.open .faq-question .chevron { transform: rotate(180deg); color: var(--primary); }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.25s ease;
}
.faq-answer p {
  padding: 0 4px 22px;
  color: var(--ink-soft);
  font-size: 14.5px;
  margin: 0;
  max-width: 640px;
}

/* ---------- CTA final ---------- */
.cta-final {
  background: var(--primary);
  border-radius: var(--radius-xl);
  padding: 64px 48px;
  text-align: center;
  position: relative;
  overflow: hidden;
  margin: 0 24px;
}
.cta-final h2 { color: #fff; font-size: 32px; margin-bottom: 14px; }
.cta-final p { color: var(--primary-tint); font-size: 16px; margin-bottom: 32px; }
.cta-final .btn-primary { background: #fff; color: var(--primary); }
.cta-final .btn-primary:hover { background: var(--primary-soft); }

/* ---------- Footer ---------- */
.site-footer {
  padding: 64px 0 32px;
  border-top: 1px solid var(--border);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 48px;
}
.footer-brand .brand { margin-bottom: 14px; }
.footer-brand p { color: var(--ink-soft); font-size: 14px; max-width: 280px; }
.footer-col h4 {
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  color: var(--ink-muted);
  margin-bottom: 18px;
}
.footer-col li { margin-bottom: 12px; }
.footer-col a { font-size: 14px; color: var(--ink-soft); }
.footer-col a:hover { color: var(--primary); }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 28px;
  border-top: 1px solid var(--border);
  color: var(--ink-muted);
  font-size: 13px;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- Scroll reveal ---------- */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ---------- Responsive ---------- */
@media (max-width: 980px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-visual { order: -1; max-width: 340px; margin: 0 auto 24px; }
  .feature-grid, .source-grid, .audience-grid, .pricing-grid { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .notion-split { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .price-card.featured { transform: none; }
}
@media (max-width: 720px) {
  .main-nav, .header-actions .btn-ghost { display: none; }
  .nav-toggle { display: flex; }
  .brand { font-size: 15px; }
  .brand img { width: 34px; height: 34px; }
  .header-actions .btn { padding: 10px 16px; font-size: 14px; }
  .hero h1 { font-size: 36px; }
  .hero p.lead { font-size: 16px; }
  .section { padding: 64px 0; }
  .section-header h2 { font-size: 28px; }
  .feature-grid, .source-grid, .audience-grid, .pricing-grid, .steps { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .cta-final { padding: 48px 24px; margin: 0 16px; }
  .cta-final h2 { font-size: 26px; }
  .phone { width: 240px; }
  .phone-screen { min-height: 420px; padding: 26px 14px 14px; }
  .floating-badge { padding: 8px 12px; font-size: 11px; gap: 6px; }
  .floating-badge .icon { font-size: 15px; }
  .floating-badge.xp { top: 2%; right: -2%; }
  .floating-badge.notion { bottom: 2%; left: -4%; max-width: 150px; }
}

/* Menu mobile ouvert */
body.nav-open .main-nav {
  display: flex;
  position: fixed;
  /* `.site-header` a un backdrop-filter, ce qui en fait le containing block de
     ce descendant fixed (au lieu du viewport) : un `bottom:0` s'y résoudrait
     contre la hauteur du header (76px) et non celle de l'écran, écrasant le
     panneau à quelques px de haut. `height` en vh ignore ce containing block
     et se cale toujours sur le viewport réel, quel que soit l'ancêtre. */
  top: 76px;
  left: 0;
  right: 0;
  height: calc(100vh - 76px);
  background: var(--canvas);
  flex-direction: column;
  padding: 32px 24px;
  gap: 8px;
  z-index: 99;
  overflow-y: auto;
}
body.nav-open .main-nav a {
  padding: 14px 4px;
  font-size: 17px;
  border-bottom: 1px solid var(--border);
}
body.nav-open .header-actions .btn-ghost { display: none; }
body.nav-open .header-actions .btn-primary { display: none; }
body.nav-open .nav-toggle span { opacity: 0; }
body.nav-open .nav-toggle::before { transform: translateY(7px) rotate(45deg); }
body.nav-open .nav-toggle::after { transform: translateY(-7px) rotate(-45deg); }