/* Pages de contenu : applications, guides, alternatives, FAQ (direction A2, thème clair et sombre) */

.seo-page { padding-bottom: clamp(40px, 6vw, 80px); }
.seo-crumbs { margin: clamp(16px, 3vw, 28px) 0 clamp(18px, 3vw, 30px); }
.seo-crumbs svg { width: 14px; height: 14px; color: var(--ink-3); }
.seo-crumbs [aria-current] { color: var(--ink); font-weight: 600; max-width: 40ch; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* En-tête : titre et réponse directe, démonstration à droite */
.seo-hero { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(24px, 5vw, 72px); align-items: center; margin-bottom: clamp(36px, 6vw, 72px); }
.seo-hero-simple { grid-template-columns: minmax(0, 52rem); margin-bottom: clamp(28px, 4vw, 48px); }
.seo-hero h1 { font: 800 clamp(2rem, 4.4vw, 3.1rem)/1.04 var(--font-display); letter-spacing: -0.03em; text-wrap: balance; }
.seo-hero-text { display: grid; gap: 14px; }
.seo-hero-text .h1-kicker { margin-bottom: 0; }
.seo-hero .legal-meta { margin: 0; }

/* Réponse directe : un fait, lu en premier par les moteurs et les IA */
.seo-answer { position: relative; padding: 16px 18px 16px 20px; border: 1px solid var(--accent-line); border-left-width: 4px; border-radius: var(--radius-sm); background: var(--accent-soft); color: var(--ink); font-size: 1.08rem; line-height: 1.55; max-width: 62ch; }

.seo-demo { max-width: 520px; justify-self: center; width: 100%; }

/* Corps : article et colonne de liens */
.seo-body { display: grid; grid-template-columns: minmax(0, 1fr) minmax(240px, 300px); gap: clamp(28px, 5vw, 72px); align-items: start; }
.seo-prose { max-width: 72ch; display: grid; gap: clamp(28px, 4vw, 40px); }
.seo-prose-wide { max-width: none; }
.seo-prose h2 { font: 800 clamp(1.35rem, 2.4vw, 1.75rem)/1.15 var(--font-display); letter-spacing: -0.02em; text-wrap: balance; }
.seo-prose p { color: var(--ink-2); line-height: 1.7; }
.seo-prose .toc { margin-bottom: 0; }
.seo-prose .note { font-size: 0.95rem; color: var(--ink-3); }

.seo-aside { position: sticky; top: 96px; display: grid; gap: 14px; }
.seo-aside h2 { font: 700 0.8rem/1.3 var(--font-ui); text-transform: uppercase; letter-spacing: 0.06em; color: var(--ink-3); margin-top: 6px; }
.seo-aside .toc { margin: 0; }
.seo-aside .toc ol { grid-template-columns: 1fr; }
.seo-all a { display: inline-flex; align-items: center; gap: 6px; font-weight: 600; color: var(--accent-text); text-decoration: none; }
.seo-all a:hover { text-decoration: underline; }
.seo-all svg { width: 16px; height: 16px; transition: transform var(--fast) var(--ease-out); }
.seo-all a:hover svg { transform: translateX(3px); }

/* Étapes : elles s'allument l'une après l'autre quand elles apparaissent */
.seo-steps { list-style: none; padding: 0; display: grid; gap: 10px; counter-reset: none; }
.seo-steps li { display: grid; grid-template-columns: 40px minmax(0, 1fr); gap: 14px; align-items: start; padding: 14px 16px; border: 1px solid var(--line); border-radius: var(--radius-sm); background: var(--surface); color: var(--ink); }
.seo-step-n { display: grid; place-items: center; width: 40px; height: 40px; border-radius: 50%; border: 1.5px solid var(--line-strong); font: 800 1rem/1 var(--font-display); color: var(--ink-2); transition: background var(--mid) var(--ease-out), color var(--mid) var(--ease-out), border-color var(--mid) var(--ease-out); }
.seo-steps li > span:last-child { padding-top: 8px; }
.js .seo-steps[data-reveal] li { opacity: 0; transform: translateY(10px); }
.js .seo-steps[data-reveal].is-on li { animation: seoStep 520ms var(--ease-expo) both; animation-delay: calc(var(--i) * 260ms); }
.js .seo-steps[data-reveal].is-on .seo-step-n { animation: seoStepN 420ms var(--ease-out) both; animation-delay: calc(var(--i) * 260ms + 260ms); }
@keyframes seoStep { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }
@keyframes seoStepN { from { background: transparent; color: var(--ink-2); border-color: var(--line-strong); } to { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); } }
.js .seo-steps[data-reveal].is-static li { opacity: 1; transform: none; animation: none; }
.js .seo-steps[data-reveal].is-static .seo-step-n,
.seo-steps:not([data-reveal]) .seo-step-n { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
html:not(.js) .seo-step-n { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }

/* Listes cochées */
.seo-checks { list-style: none; padding: 0; display: grid; gap: 10px; }
.seo-checks li { display: grid; grid-template-columns: 22px minmax(0, 1fr); gap: 10px; align-items: start; color: var(--ink-2); line-height: 1.6; }
.seo-checks svg { width: 20px; height: 20px; margin-top: 3px; color: var(--ok); }
.seo-checks-neutral svg { color: var(--ink-3); }

/* Tableaux */
.seo-formats code { font: 500 0.88rem/1.4 var(--font-code); color: var(--ink); word-break: break-all; }
.seo-compare th[scope="row"] { text-align: left; font-weight: 700; color: var(--ink); white-space: normal; }
.seo-compare td { color: var(--ink-2); vertical-align: top; }
.seo-compare thead th:nth-child(2) { color: var(--accent-text); }
.js .seo-compare[data-reveal] tbody tr { opacity: 0; }
.js .seo-compare[data-reveal].is-on tbody tr { animation: seoFade 420ms var(--ease-out) both; animation-delay: calc(var(--i) * 70ms); }
.js .seo-compare[data-reveal].is-static tbody tr { opacity: 1; animation: none; }
@keyframes seoFade { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }

.seo-two { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: clamp(20px, 4vw, 40px); }
.seo-choice { padding: 20px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); display: grid; gap: 14px; align-content: start; }

/* Questions, même style que l'accueil */
.seo-faq { display: grid; gap: 4px; }
.seo-faq h2 { margin-bottom: 8px; }
.seo-faq details { border-bottom: 1px solid var(--line-strong); }
.seo-faq summary { display: flex; justify-content: space-between; align-items: center; gap: 16px; min-height: 60px; cursor: pointer; font-weight: 700; font-size: 1.05rem; list-style: none; color: var(--ink); }
.seo-faq summary::-webkit-details-marker { display: none; }
.seo-faq summary svg { flex: none; transition: transform var(--mid) var(--ease-out); color: var(--ink-3); }
.seo-faq details[open] summary svg { transform: rotate(45deg); color: var(--accent-text); }
.seo-faq details p { padding: 0 0 20px; color: var(--ink-2); max-width: 64ch; }
.seo-faq details p a { color: var(--accent-text); font-weight: 600; }
.seo-faq details[open] p { animation: seoFade 260ms var(--ease-out); }
.seo-faq-groups { display: grid; gap: clamp(32px, 5vw, 56px); }
.seo-faq-groups h2 { scroll-margin-top: 96px; }

/* Cartes de liens internes */
.seo-cards { list-style: none; padding: 0; display: grid; gap: 10px; }
.seo-cards-grid { grid-template-columns: repeat(auto-fill, minmax(min(100%, 220px), 1fr)); }
.seo-cards-list { grid-template-columns: repeat(auto-fill, minmax(min(100%, 360px), 1fr)); gap: 14px; }
.seo-card { display: grid; grid-template-columns: auto minmax(0, 1fr) auto; gap: 12px; align-items: center; min-height: 56px; padding: 12px 14px; border: 1px solid var(--line); border-radius: var(--radius-sm); background: var(--surface); color: var(--ink); text-decoration: none; transition: border-color var(--fast) var(--ease-out), background var(--fast) var(--ease-out), transform var(--fast) var(--ease-out); }
.seo-card:hover { border-color: var(--accent-line); background: var(--surface-hover); }
.seo-card:active { transform: scale(0.99); }
.seo-card-ico { display: grid; place-items: center; width: 36px; height: 36px; border-radius: 10px; background: var(--accent-soft); color: var(--accent-text); }
.seo-card-ico svg { width: 18px; height: 18px; }
.seo-card-body { display: grid; gap: 2px; min-width: 0; }
.seo-card-body b { font-weight: 700; line-height: 1.3; }
.seo-card-body small { color: var(--ink-2); font-size: 0.9rem; line-height: 1.45; }
.seo-card-go { width: 18px; height: 18px; color: var(--ink-3); transition: transform var(--fast) var(--ease-out), color var(--fast) var(--ease-out); }
.seo-card:hover .seo-card-go { transform: translateX(3px); color: var(--accent-text); }
.seo-cards-list .seo-card { align-items: start; padding: 16px; }
.seo-cards-s .seo-card-body b { font-size: 0.95rem; }
.seo-cards-s .seo-card-body small { font-size: 0.85rem; }

/* Familles d'applications : apparition en cascade */
.seo-family { margin-bottom: clamp(28px, 4vw, 44px); display: grid; gap: 14px; }
.seo-family h2, .seo-more h2 { font: 800 clamp(1.3rem, 2.2vw, 1.6rem)/1.15 var(--font-display); letter-spacing: -0.02em; }
.js [data-reveal] .seo-cards > li { opacity: 0; transform: translateY(8px); }
.js [data-reveal].is-on .seo-cards > li { animation: seoFade 420ms var(--ease-out) both; animation-delay: calc(min(var(--n, 0), 12) * 40ms); }
.js [data-reveal].is-static .seo-cards > li { opacity: 1; transform: none; animation: none; }
.seo-more { margin-top: clamp(36px, 5vw, 56px); display: grid; gap: 14px; }

/* Sources */
.seo-sources ul { list-style: none; padding: 0; display: grid; gap: 6px; }
.seo-sources a { display: inline-flex; align-items: center; gap: 6px; color: var(--accent-text); }
.seo-sources svg { width: 14px; height: 14px; }

/* Appel à l'action final */
.seo-cta { margin-top: clamp(48px, 7vw, 88px); display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 20px 32px; padding: clamp(24px, 4vw, 40px); border-radius: var(--radius); background: var(--accent); color: var(--accent-ink); }
.seo-cta h2 { font: 800 clamp(1.5rem, 3vw, 2.2rem)/1.08 var(--font-display); letter-spacing: -0.03em; max-width: 22ch; }
.seo-cta p { margin-top: 8px; max-width: 52ch; opacity: 0.92; }
.seo-cta-actions { display: flex; flex-wrap: wrap; gap: 10px; }
.seo-cta .btn-primary { background: var(--surface); color: var(--ink); }
.seo-cta .btn-primary:hover { background: var(--surface-2); }
.seo-cta .btn-ghost { color: var(--accent-ink); border-color: currentColor; }
.seo-cta .btn-ghost:hover { background: transparent; text-decoration: underline; }

@media (max-width: 960px) {
  .seo-hero { grid-template-columns: 1fr; }
  .seo-body { grid-template-columns: 1fr; }
  .seo-aside { position: static; }
}
@media (max-width: 640px) {
  .seo-two { grid-template-columns: 1fr; }
  .seo-crumbs [aria-current] { max-width: 24ch; }
  .seo-cta-actions .btn { width: 100%; justify-content: center; }
}
@media (prefers-reduced-motion: reduce) {
  .js [data-reveal] .seo-cards > li, .js .seo-steps[data-reveal] li, .js .seo-compare[data-reveal] tbody tr { opacity: 1; transform: none; animation: none; }
}

/* Explication courte avant une liste (page deep link) */
.seo-explain { margin-bottom: clamp(32px, 5vw, 56px); }
.tool-guide { margin-top: clamp(32px, 5vw, 56px); margin-bottom: clamp(32px, 5vw, 56px); }
.tool-guide .seo-step-n { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }

/* Liste anglaise des applications : celles dont la page n'existe qu'en français */
.seo-also { max-width: 75ch; color: var(--ink-2); }
.seo-also a { color: var(--accent-text); }

/* Adresses longues dans le texte (guides) : coupées au lieu de faire déborder la page à 375 px */
.seo-prose p, .seo-prose li { overflow-wrap: anywhere; }