/* ═══════════════════════════════════════════════════════════════════════════
   Vitrine Opti Academy — myoptibot.com/optiacademy
   Palette calée sur la section Academy de la PWA (tokens.css, contexte
   "academy") : encre #0E133E, accent #3E2D69, flamme #A43C24.
   Page statique, zéro framework — mêmes fondamentaux que l'app (Segoe UI).
   ═══════════════════════════════════════════════════════════════════════════ */

:root {
  --acv-ink:        #0E133E;
  --acv-accent:     #3E2D69;
  --acv-flame:      #A43C24;
  --acv-gradient:   linear-gradient(135deg, #0E133E, #3E2D69 60%, #A43C24);

  --acv-bg:         #f7f6f9;
  --acv-surface:    #ffffff;
  --acv-text:       #1a0e25;
  --acv-text-2:     #5a4878;
  --acv-muted:      #8a7ca0;
  --acv-border:     rgba(154, 136, 180, 0.35);
  --acv-border-sub: rgba(208, 200, 224, 0.5);
  --acv-accent-50:  #f1eef8;

  --acv-radius:     14px;
  --acv-radius-sm:  9px;
  --acv-shadow:     0 4px 12px rgba(19, 3, 34, 0.08);
  --acv-shadow-lg:  0 12px 32px rgba(19, 3, 34, 0.14);
  --acv-font: 'Segoe UI', -apple-system, BlinkMacSystemFont, sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--acv-font);
  background: var(--acv-bg);
  color: var(--acv-text);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; }
a { color: var(--acv-accent); }

/* ═══════════════════════ NAV ═══════════════════════ */

.acv-nav {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  gap: 22px;
  padding: 10px clamp(16px, 4vw, 40px);
  background: rgba(247, 246, 249, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--acv-border-sub);
}

.acv-nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--acv-ink);
  font-size: 17px;
  white-space: nowrap;
}
.acv-nav-brand img { border-radius: 8px; }
.acv-nav-brand strong { font-weight: 700; }

.acv-nav-links {
  display: flex;
  gap: 18px;
  margin-left: auto;
}
.acv-nav-links a {
  text-decoration: none;
  color: var(--acv-text-2);
  font-size: 14px;
  padding: 6px 2px;
}
.acv-nav-links a:hover { color: var(--acv-ink); }

.acv-nav-cta {
  text-decoration: none;
  background: var(--acv-ink);
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  padding: 8px 16px;
  border-radius: 999px;
  white-space: nowrap;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.acv-nav-cta:hover { transform: translateY(-1px); box-shadow: var(--acv-shadow); }

@media (max-width: 720px) {
  .acv-nav-links { display: none; }
  .acv-nav-cta { margin-left: auto; }
}

/* ═══════════════════════ HERO ═══════════════════════ */

.acv-hero {
  background: var(--acv-gradient);
  color: #fff;
  padding: clamp(48px, 8vw, 96px) clamp(16px, 4vw, 40px) clamp(56px, 8vw, 104px);
}

.acv-hero-inner {
  max-width: 880px;
  margin: 0 auto;
  text-align: center;
}

.acv-hero-kicker {
  display: inline-block;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.4px;
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 999px;
  padding: 6px 16px;
  margin-bottom: 22px;
}

.acv-hero h1 {
  font-size: clamp(34px, 6vw, 58px);
  font-weight: 800;
  line-height: 1.12;
  letter-spacing: -0.5px;
}
.acv-hero h1 em {
  font-style: normal;
  background: linear-gradient(90deg, #ffd9a8, #ff9d6e);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.acv-hero-sub {
  font-size: clamp(15px, 2.2vw, 18px);
  color: rgba(255, 255, 255, 0.88);
  max-width: 640px;
  margin: 18px auto 34px;
}
.acv-hero-sub strong { color: #fff; }

.acv-hero-trust {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px 24px;
  margin-top: 26px;
  font-size: 13.5px;
  color: rgba(255, 255, 255, 0.82);
}

/* ── Studio (barre + résultats) ── */

.acv-studio { max-width: 720px; margin: 0 auto; }

.acv-studio-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  background: #fff;
  border-radius: 999px;
  padding: 8px 10px 8px 18px;
  box-shadow: var(--acv-shadow-lg);
  text-align: left;
}

.acv-studio-icon { font-size: 18px; flex: none; }

/* Champ contenteditable (pas d'<input> : coupe l'autofill navigateur —
   même parade que le studio de l'app). Placeholder via :empty::before. */
.acv-studio-input {
  flex: 1;
  min-width: 0;
  color: var(--acv-text);
  font-size: 16px;
  padding: 8px 4px;
  outline: none;
  white-space: nowrap;
  overflow: hidden;
}
.acv-studio-input:empty::before {
  content: attr(data-placeholder);
  color: var(--acv-muted);
  pointer-events: none;
}

.acv-studio-clear {
  flex: none;
  border: none;
  background: var(--acv-accent-50);
  color: var(--acv-text-2);
  width: 32px;
  height: 32px;
  border-radius: 50%;
  cursor: pointer;
  font-size: 13px;
}
.acv-studio-clear:hover { background: var(--acv-border-sub); }

.acv-studio-results { margin-top: 18px; text-align: left; }

/* Chips d'idées (état vide) */
.acv-idea-chips {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
}
.acv-idea-chip {
  border: 1px solid rgba(255, 255, 255, 0.35);
  background: rgba(255, 255, 255, 0.10);
  color: #fff;
  font-size: 13.5px;
  font-family: inherit;
  padding: 7px 14px;
  border-radius: 999px;
  cursor: pointer;
  transition: background 0.15s ease;
}
.acv-idea-chip:hover { background: rgba(255, 255, 255, 0.22); }

/* États info (chargement / indisponible / rate-limit) */
.acv-studio-note {
  text-align: center;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.85);
  padding: 10px;
}

/* Grille de suggestions */
.acv-sugg-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 12px;
}

.acv-sugg-card {
  background: #fff;
  color: var(--acv-text);
  border-radius: var(--acv-radius);
  padding: 14px 16px;
  box-shadow: var(--acv-shadow);
  display: flex;
  flex-direction: column;
  gap: 8px;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.acv-sugg-card:hover { transform: translateY(-2px); box-shadow: var(--acv-shadow-lg); }

.acv-sugg-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.acv-angle-badge {
  font-size: 11.5px;
  font-weight: 600;
  border-radius: 999px;
  padding: 3px 10px;
  white-space: nowrap;
}
.acv-angle-classique { background: #e8ecfb; color: #2b3a8f; }
.acv-angle-cible     { background: #f3e8fb; color: #6a2f8f; }
.acv-angle-panorama  { background: #e6f4ee; color: #1e6b47; }
.acv-angle-original  { background: #fdefe4; color: #a4501f; }
.acv-angle-profil    { background: #fdeaea; color: #9c2f3f; }

.acv-sugg-meta { font-size: 12px; color: var(--acv-muted); white-space: nowrap; }

.acv-sugg-title {
  font-size: 15.5px;
  font-weight: 700;
  color: var(--acv-ink);
  display: flex;
  gap: 8px;
  align-items: baseline;
}
.acv-sugg-tagline { font-size: 13.5px; color: var(--acv-text-2); flex: 1; }

.acv-sugg-actions {
  display: flex;
  gap: 8px;
  margin-top: 4px;
}
.acv-sugg-go {
  flex: 1;
  border: none;
  background: var(--acv-gradient);
  color: #fff;
  font-family: inherit;
  font-size: 13.5px;
  font-weight: 600;
  padding: 9px 12px;
  border-radius: 999px;
  cursor: pointer;
}
.acv-sugg-go:hover { filter: brightness(1.12); }
.acv-sugg-drill {
  border: 1px solid var(--acv-border);
  background: #fff;
  color: var(--acv-text-2);
  font-family: inherit;
  font-size: 13px;
  padding: 9px 12px;
  border-radius: 999px;
  cursor: pointer;
}
.acv-sugg-drill:hover { background: var(--acv-accent-50); }
.acv-sugg-drill:disabled { opacity: 0.6; cursor: default; }

/* Fil d'Ariane drilldown + « créer mon propre sujet » */
.acv-drill-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
  color: rgba(255, 255, 255, 0.9);
  font-size: 13.5px;
}
.acv-drill-back {
  border: 1px solid rgba(255, 255, 255, 0.4);
  background: transparent;
  color: #fff;
  font-family: inherit;
  font-size: 12.5px;
  padding: 5px 12px;
  border-radius: 999px;
  cursor: pointer;
}
.acv-drill-back:hover { background: rgba(255, 255, 255, 0.15); }

.acv-own-topic {
  text-align: center;
  margin-top: 14px;
}
.acv-own-topic button {
  border: none;
  background: transparent;
  color: rgba(255, 255, 255, 0.85);
  font-family: inherit;
  font-size: 13.5px;
  text-decoration: underline;
  cursor: pointer;
}
.acv-own-topic button:hover { color: #fff; }

/* Squelettes de chargement */
.acv-skeleton {
  height: 118px;
  border-radius: var(--acv-radius);
  background: linear-gradient(100deg,
    rgba(255,255,255,0.16) 40%, rgba(255,255,255,0.32) 50%, rgba(255,255,255,0.16) 60%);
  background-size: 200% 100%;
  animation: acvShimmer 1.2s infinite linear;
}
@keyframes acvShimmer { to { background-position: -200% 0; } }

/* ═══════════════════════ SECTIONS ═══════════════════════ */

.acv-section {
  padding: clamp(48px, 7vw, 84px) clamp(16px, 4vw, 40px);
  max-width: 1060px;
  margin: 0 auto;
}
.acv-section-alt {
  max-width: none;
  background: #fff;
  border-top: 1px solid var(--acv-border-sub);
  border-bottom: 1px solid var(--acv-border-sub);
}
.acv-section-alt > * { max-width: 1060px; margin-left: auto; margin-right: auto; }

.acv-section h2 {
  font-size: clamp(24px, 3.6vw, 34px);
  font-weight: 800;
  color: var(--acv-ink);
  text-align: center;
  letter-spacing: -0.3px;
}
.acv-section-sub {
  text-align: center;
  color: var(--acv-text-2);
  font-size: 15.5px;
  max-width: 620px;
  margin: 12px auto 40px;
}

/* Étapes */
.acv-steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 18px;
}
.acv-step {
  background: var(--acv-surface);
  border: 1px solid var(--acv-border-sub);
  border-radius: var(--acv-radius);
  padding: 26px 22px;
  box-shadow: var(--acv-shadow);
}
.acv-step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--acv-gradient);
  color: #fff;
  font-weight: 700;
  margin-bottom: 14px;
}
.acv-step h3 { font-size: 17px; color: var(--acv-ink); margin-bottom: 8px; }
.acv-step p { font-size: 14px; color: var(--acv-text-2); }

/* Fonctionnalités */
.acv-features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 18px;
}
.acv-feature {
  background: var(--acv-bg);
  border: 1px solid var(--acv-border-sub);
  border-radius: var(--acv-radius);
  padding: 22px;
}
.acv-feature-ico { font-size: 26px; display: block; margin-bottom: 10px; }
.acv-feature h3 { font-size: 16px; color: var(--acv-ink); margin-bottom: 6px; }
.acv-feature p { font-size: 13.5px; color: var(--acv-text-2); }

/* Domaines */
.acv-domains {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  max-width: 860px;
  margin: 0 auto;
}
.acv-domains button {
  border: 1px solid var(--acv-border);
  background: #fff;
  color: var(--acv-accent);
  font-family: inherit;
  font-size: 14px;
  font-weight: 600;
  padding: 9px 18px;
  border-radius: 999px;
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease, transform 0.15s ease;
}
.acv-domains button:hover {
  background: var(--acv-accent);
  color: #fff;
  transform: translateY(-1px);
}

/* Pricing / CTA */
.acv-pricing { text-align: center; max-width: 620px; }
.acv-pricing p { color: var(--acv-text-2); font-size: 15.5px; margin: 14px 0 26px; }
.acv-pricing-note { font-size: 13px !important; color: var(--acv-muted) !important; margin-top: 18px !important; }

.acv-btn-primary {
  border: none;
  background: var(--acv-gradient);
  color: #fff;
  font-family: inherit;
  font-size: 16px;
  font-weight: 700;
  padding: 14px 32px;
  border-radius: 999px;
  cursor: pointer;
  box-shadow: 0 6px 18px rgba(62, 45, 105, 0.35);
  transition: transform 0.15s ease, filter 0.15s ease;
}
.acv-btn-primary:hover { transform: translateY(-2px); filter: brightness(1.1); }
.acv-btn-primary:disabled { opacity: 0.6; cursor: default; transform: none; }

/* FAQ */
.acv-faq { max-width: 760px; margin: 0 auto; }
.acv-faq details {
  background: #fff;
  border: 1px solid var(--acv-border-sub);
  border-radius: var(--acv-radius-sm);
  margin-bottom: 10px;
  padding: 0 18px;
}
.acv-faq summary {
  cursor: pointer;
  font-weight: 600;
  font-size: 15px;
  color: var(--acv-ink);
  padding: 15px 0;
  list-style: none;
  position: relative;
  padding-right: 28px;
}
.acv-faq summary::-webkit-details-marker { display: none; }
.acv-faq summary::after {
  content: "+";
  position: absolute;
  right: 2px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 20px;
  color: var(--acv-accent);
}
.acv-faq details[open] summary::after { content: "–"; }
.acv-faq details p { padding: 0 0 16px; font-size: 14px; color: var(--acv-text-2); }

/* CTA final */
.acv-final {
  background: var(--acv-gradient);
  color: #fff;
  text-align: center;
  padding: clamp(48px, 7vw, 80px) 20px;
}
.acv-final h2 { font-size: clamp(24px, 3.6vw, 34px); font-weight: 800; }
.acv-final p { margin: 10px 0 26px; color: rgba(255, 255, 255, 0.85); }
.acv-btn-light {
  background: #fff;
  color: var(--acv-ink);
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.25);
}

/* ═══════════════════════ FOOTER ═══════════════════════ */

.acv-footer {
  background: var(--acv-ink);
  color: rgba(255, 255, 255, 0.75);
  font-size: 13.5px;
  padding: 26px clamp(16px, 4vw, 40px);
}
.acv-footer-inner {
  max-width: 1060px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  gap: 12px 24px;
  align-items: center;
  justify-content: space-between;
}
.acv-footer a { color: #fff; }
.acv-footer nav { display: flex; gap: 18px; }

/* ═══════════════════════ MODALE ═══════════════════════ */

.acv-modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 100;
  background: rgba(14, 19, 62, 0.55);
  backdrop-filter: blur(3px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
/* display:flex ci-dessus écrase le display:none que le navigateur applique à
   [hidden] (les règles auteur priment sur les règles UA) — sans cette règle,
   la modale s'affiche dès le chargement de la page. */
.acv-modal-backdrop[hidden] { display: none; }

.acv-modal {
  position: relative;
  background: #fff;
  border-radius: var(--acv-radius);
  box-shadow: var(--acv-shadow-lg);
  max-width: 440px;
  width: 100%;
  padding: 30px 28px 26px;
  text-align: center;
}

.acv-modal-close {
  position: absolute;
  top: 12px;
  right: 12px;
  border: none;
  background: var(--acv-accent-50);
  color: var(--acv-text-2);
  width: 30px;
  height: 30px;
  border-radius: 50%;
  cursor: pointer;
}

.acv-modal-topic {
  display: inline-block;
  background: var(--acv-accent-50);
  color: var(--acv-accent);
  font-size: 13px;
  font-weight: 600;
  border-radius: 999px;
  padding: 6px 14px;
  margin-bottom: 14px;
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.acv-modal h3 { font-size: 20px; color: var(--acv-ink); margin-bottom: 8px; }
.acv-modal-sub { font-size: 14px; color: var(--acv-text-2); margin-bottom: 18px; }

.acv-modal input[type="email"] {
  width: 100%;
  font-family: inherit;
  font-size: 15px;
  padding: 12px 14px;
  border: 1px solid var(--acv-border);
  border-radius: var(--acv-radius-sm);
  margin-bottom: 12px;
  outline: none;
}
.acv-modal input[type="email"]:focus { border-color: var(--acv-accent); }

.acv-modal-tos {
  display: flex;
  gap: 8px;
  align-items: flex-start;
  text-align: left;
  font-size: 12.5px;
  color: var(--acv-text-2);
  margin-bottom: 16px;
}
.acv-modal-tos input { margin-top: 3px; }

.acv-modal form .acv-btn-primary { width: 100%; font-size: 15px; }

.acv-modal-error {
  color: #b3261e;
  font-size: 13px;
  margin-top: 12px;
}

.acv-modal-sent-ico { font-size: 42px; margin-bottom: 8px; }
.acv-modal-hint { font-size: 12.5px; color: var(--acv-muted); }

/* Réduction des animations si demandé par l'OS */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation: none !important; transition: none !important; }
}