/* =====================================================
   Le Fil Rouge — site v3 (multi-pages)
   Palette et typo héritées de la V2, contrastes corrigés
   (audit accessibilité 2026-07 : ratios AA respectés)
   ===================================================== */

/* ---- Polices auto-hébergées (RGPD + performance) ---- */
@font-face {
  font-family: 'Cormorant Garamond';
  src: url('/assets/fonts/cormorant-garamond-var.woff2') format('woff2');
  font-weight: 300 700;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Cormorant Garamond';
  src: url('/assets/fonts/cormorant-garamond-italic-var.woff2') format('woff2');
  font-weight: 300 700;
  font-style: italic;
  font-display: swap;
}
@font-face {
  font-family: 'DM Sans';
  src: url('/assets/fonts/dm-sans-var.woff2') format('woff2');
  font-weight: 100 1000;
  font-style: normal;
  font-display: swap;
}
/* Fallback calibré pour limiter le CLS au swap du titre */
@font-face {
  font-family: 'Georgia Adjusted';
  src: local('Georgia');
  size-adjust: 88%;
  ascent-override: 92%;
}

:root {
  --ivoire: #F5F0EB;
  --blanc: #FFFFFF;
  --charbon: #1A1A1A;
  --charbon-2: #222222;
  --rouge: #A02828;
  --rouge-vif: #C03040;
  --rouge-fonce: #8A2222;
  /* Textes secondaires — ratios AA vérifiés */
  --enc-2: rgba(26, 26, 26, 0.74);        /* sur ivoire : 4,9:1 */
  --enc-3: rgba(26, 26, 26, 0.60);        /* labels ≥ 0.75rem uniquement */
  --ivo-2: rgba(245, 240, 235, 0.72);     /* sur charbon : 7,4:1 */
  --ivo-3: rgba(245, 240, 235, 0.58);     /* sur charbon : 5,1:1 */
  --sur-rouge: rgba(255, 255, 255, 0.88); /* sur rouge : > 4,5:1 */
  --ligne: rgba(26, 26, 26, 0.12);
  --ligne-sombre: rgba(245, 240, 235, 0.14);
  --serif: 'Cormorant Garamond', 'Georgia Adjusted', Georgia, serif;
  --sans: 'DM Sans', 'Avenir Next', 'Segoe UI', system-ui, sans-serif;
  --maxw: 1140px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--sans);
  font-size: 1rem;
  line-height: 1.65;
  color: var(--charbon);
  background: var(--ivoire);
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--rouge); }
:focus-visible { outline: 2px solid var(--rouge); outline-offset: 3px; border-radius: 2px; }

h1, h2, h3 { font-family: var(--serif); font-weight: 600; line-height: 1.12; text-wrap: balance; margin: 0 0 0.5em; }
h1 { font-size: clamp(2.4rem, 5.5vw, 4.2rem); font-weight: 300; }
h1 em, h2 em { font-style: italic; color: var(--rouge-vif); }
h2 { font-size: clamp(1.7rem, 3.4vw, 2.5rem); }
h3 { font-size: 1.35rem; }
p { margin: 0 0 1em; }

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
.narrow { max-width: 760px; }

/* ---- Utilitaires ---- */
.sr-only {
  position: absolute; width: 1px; height: 1px; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; padding: 0;
}
.skip-link {
  position: absolute; left: 12px; top: -60px; z-index: 200;
  background: var(--charbon); color: var(--ivoire);
  padding: 10px 18px; border-radius: 4px; font-size: 0.85rem; transition: top 0.15s;
}
.skip-link:focus { top: 12px; }

.t-label {
  font-size: 0.75rem; letter-spacing: 0.18em; text-transform: uppercase;
  font-weight: 600; color: var(--rouge); margin: 0 0 14px;
}
.section-dark .t-label { color: #E08585; }

/* ---- Boutons ---- */
.btn {
  display: inline-block; padding: 14px 28px; border-radius: 3px;
  font-family: var(--sans); font-size: 0.8rem; font-weight: 600;
  letter-spacing: 0.1em; text-transform: uppercase; text-decoration: none;
  border: 1px solid transparent; cursor: pointer; transition: background 0.2s, color 0.2s, border-color 0.2s;
}
.btn-primary { background: var(--rouge); color: #fff; }
.btn-primary:hover { background: var(--rouge-fonce); }
.btn-ghost { background: transparent; color: var(--charbon); border-color: rgba(26,26,26,0.35); }
.btn-ghost:hover { border-color: var(--charbon); }
.section-dark .btn-ghost, .hero .btn-ghost { color: var(--ivoire); border-color: rgba(245,240,235,0.4); }
.section-dark .btn-ghost:hover, .hero .btn-ghost:hover { border-color: var(--ivoire); }

/* ---- Navigation ---- */
.nav {
  position: sticky; top: 0; z-index: 100;
  background: rgba(245, 240, 235, 0.92); backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--ligne);
}
.nav-inner { display: flex; align-items: center; gap: 28px; height: 76px; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
.nav-logo { display: flex; align-items: center; gap: 16px; text-decoration: none; color: var(--charbon); margin-right: auto; }
.nav-logo img { height: 44px; width: auto; }
/* Bloc texte calé sur la hauteur exacte du carré du logo :
   haut des capitales du nom = bord haut, base du descripteur = bord bas */
.brand-block { display: flex; flex-direction: column; justify-content: space-between; height: 44px; padding-top: 1px; }
.brand-name {
  font-family: var(--serif); font-size: 1.3rem; font-weight: 600; line-height: 0.72;
  letter-spacing: 0.15em; text-transform: uppercase; color: var(--charbon); white-space: nowrap;
}
.brand-name em { font-style: normal; color: var(--rouge-vif); }
.brand-desc {
  font-family: var(--sans); font-size: 0.625rem; font-weight: 500; line-height: 0.75;
  letter-spacing: 0.18em; text-transform: uppercase; color: #6B6560; white-space: nowrap;
  margin-bottom: -1px;
}
@media (max-width: 600px) {
  .brand-name { font-size: 1.05rem; line-height: 1; }
  .brand-desc { display: none; }
  .brand-block { height: auto; justify-content: center; padding-top: 0; }
  .nav-logo { gap: 12px; }
  .nav-logo img { height: 38px; width: auto; }
}
.nav-links { display: flex; gap: 26px; align-items: center; margin: 0; padding: 0; list-style: none; }
.nav-links a {
  font-size: 0.78rem; letter-spacing: 0.1em; text-transform: uppercase;
  text-decoration: none; color: var(--enc-2); font-weight: 500;
}
.nav-links a:hover, .nav-links a[aria-current="page"] { color: var(--rouge); }
.nav-cta { font-size: 0.72rem; padding: 10px 18px; }
.nav-burger {
  display: none; background: none; border: 0; cursor: pointer; padding: 10px;
  flex-direction: column; gap: 5px;
}
.nav-burger span { display: block; width: 22px; height: 2px; background: var(--charbon); transition: transform 0.2s, opacity 0.2s; }

@media (max-width: 920px) {
  .nav-links {
    display: none; position: absolute; top: 68px; left: 0; right: 0;
    background: var(--ivoire); border-bottom: 1px solid var(--ligne);
    flex-direction: column; align-items: flex-start; gap: 0; padding: 8px 0 16px;
  }
  .nav-links.open { display: flex; }
  .nav-links li { width: 100%; }
  .nav-links a { display: block; padding: 12px 24px; font-size: 0.85rem; }
  .nav-burger { display: flex; }
  .nav-burger[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .nav-burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
  .nav-burger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
  /* Le CTA reste visible sur mobile (audit UX #13) */
  .nav-cta { display: inline-block; }
}

/* ---- Hero ---- */
.hero {
  background:
    radial-gradient(ellipse 90% 60% at 20% 0%, rgba(192, 48, 64, 0.10), transparent 60%),
    linear-gradient(170deg, #201d1d 0%, var(--charbon) 55%, #171414 100%);
  color: var(--ivoire);
  padding: 96px 0 72px;
}
.hero-eyebrow { color: #E08585; }
.hero p.lede { font-size: 1.1rem; color: var(--ivo-2); max-width: 62ch; margin: 22px 0 34px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-definition { font-size: 0.95rem; color: var(--ivo-3); max-width: 72ch; margin-top: 40px; border-left: 2px solid var(--rouge-vif); padding-left: 16px; }

.hero-metrics { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 20px; margin-top: 56px; padding-top: 36px; border-top: 1px solid var(--ligne-sombre); }
.metric-value { font-family: var(--serif); font-size: 2.4rem; font-weight: 300; line-height: 1; color: var(--ivoire); font-variant-numeric: tabular-nums; }
.metric-value em { font-style: normal; color: var(--rouge-vif); }
.metric-label { font-size: 0.78rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--ivo-3); margin-top: 8px; }

/* ---- Sections ---- */
section { padding: 76px 0; }
.section-dark { background: var(--charbon); color: var(--ivoire); }
.section-dark p { color: var(--ivo-2); }
.section-blanc { background: var(--blanc); }
.section-head { max-width: 720px; margin-bottom: 44px; }
.section-head p { color: var(--enc-2); }
.section-dark .section-head p { color: var(--ivo-2); }

/* ---- Bandeau de preuves ---- */
.proof-bar { background: var(--charbon-2); color: var(--ivoire); padding: 20px 0; border-top: 1px solid var(--ligne-sombre); }
.proof-bar ul { display: flex; flex-wrap: wrap; gap: 10px 36px; margin: 0; padding: 0; list-style: none; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
.proof-bar li { font-size: 0.82rem; letter-spacing: 0.05em; color: var(--ivo-2); display: flex; align-items: center; gap: 10px; }
.proof-bar li::before { content: ""; width: 14px; height: 2px; background: var(--rouge-vif); flex: none; }

/* ---- Illustrations ---- */
.illus-band { max-width: var(--maxw); margin: 0 auto; padding: 44px 24px 0; }
.illus { width: 100%; height: auto; border: 1px solid var(--ligne); border-radius: 4px; }
.case-illus {
  width: calc(100% + 56px); margin: -30px -28px 18px; max-width: none;
  border-bottom: 1px solid var(--ligne); border-radius: 4px 4px 0 0;
  aspect-ratio: 3 / 2; object-fit: cover;
}

/* ---- Cartes ---- */
.grid { display: grid; gap: 20px; }
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.card {
  background: var(--blanc); border: 1px solid var(--ligne); border-radius: 4px;
  padding: 30px 28px; display: flex; flex-direction: column;
}
.section-blanc .card { background: var(--ivoire); }
.card h3 { margin-top: 0; }
.card p { color: var(--enc-2); font-size: 0.95rem; }
.card .card-foot { margin-top: auto; padding-top: 16px; }
.card-link { font-size: 0.8rem; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; text-decoration: none; }
.card-link::after { content: " →"; }

.offer-card--featured { border-top: 3px solid var(--rouge); }
.offer-badge {
  display: inline-block; font-size: 0.72rem; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--rouge); font-weight: 700; margin-bottom: 12px;
}

/* ---- Cas / réalisations ---- */
.case-card { position: relative; }
.case-status {
  display: inline-block; font-size: 0.72rem; font-weight: 600; letter-spacing: 0.06em;
  padding: 2px 10px; border-radius: 999px; margin-bottom: 14px;
}
.case-status--prod { background: rgba(46, 110, 74, 0.12); color: #2A5E42; }
.case-status--cours { background: rgba(160, 110, 20, 0.13); color: #7A5510; }
.case-status--livre { background: rgba(40, 80, 140, 0.10); color: #2C5282; }
.case-status--type { background: rgba(90, 84, 76, 0.10); color: #5C564E; }
.case-tags { display: flex; flex-wrap: wrap; gap: 6px; margin: 14px 0 0; padding: 0; list-style: none; }
.case-tags li {
  font-size: 0.72rem; letter-spacing: 0.05em; color: var(--enc-2);
  border: 1px solid var(--ligne); border-radius: 999px; padding: 2px 10px;
}
.case-result { font-family: var(--serif); font-size: 1.15rem; font-style: italic; color: var(--charbon); margin-top: 14px; }

.case-block { margin: 26px 0; }
.case-block h2 { font-size: 1.4rem; }
.case-meta { display: flex; flex-wrap: wrap; gap: 8px 28px; font-size: 0.85rem; color: var(--enc-2); margin: 18px 0 30px; padding: 14px 0; border-top: 1px solid var(--ligne); border-bottom: 1px solid var(--ligne); }
.case-meta strong { color: var(--charbon); }

/* ---- Étapes / méthode ---- */
.steps { counter-reset: step; display: grid; gap: 20px; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); }
.step { counter-increment: step; background: var(--blanc); border: 1px solid var(--ligne); border-radius: 4px; padding: 28px 26px; color: var(--charbon); }
.step h3 { color: var(--charbon); }
.step::before {
  content: "0" counter(step);
  font-family: var(--serif); font-style: italic; font-size: 1.6rem; color: var(--rouge-vif);
  display: block; margin-bottom: 12px;
}
.step h3 { font-size: 1.2rem; }
.step p { font-size: 0.92rem; color: var(--enc-2); margin-bottom: 0; }

/* ---- Listes à coche ---- */
.checks { list-style: none; margin: 0; padding: 0; display: grid; gap: 12px; }
.checks li { padding-left: 30px; position: relative; color: var(--enc-2); }
.checks li::before {
  content: "—"; position: absolute; left: 0; color: var(--rouge); font-weight: 700;
}
.checks li strong { color: var(--charbon); }
.section-dark .checks li { color: var(--ivo-2); }
.section-dark .checks li strong { color: var(--ivoire); }

/* ---- FAQ ---- */
.faq-item { border-bottom: 1px solid var(--ligne); }
.faq-q {
  width: 100%; background: none; border: 0; cursor: pointer;
  display: flex; justify-content: space-between; align-items: center; gap: 20px;
  padding: 22px 4px; text-align: left;
  font-family: var(--serif); font-size: 1.25rem; font-weight: 600; color: var(--charbon);
}
.faq-q .faq-icon { flex: none; font-family: var(--sans); color: var(--rouge); font-size: 1.3rem; transition: transform 0.2s; }
.faq-item.open .faq-icon { transform: rotate(45deg); }
.faq-a { display: grid; grid-template-rows: 0fr; transition: grid-template-rows 0.25s ease; }
.faq-item.open .faq-a { grid-template-rows: 1fr; }
.faq-a > div { overflow: hidden; }
.faq-a p { color: var(--enc-2); padding: 0 4px 22px; margin: 0; max-width: 70ch; }

/* ---- CTA final ---- */
.cta-final { background: var(--rouge); color: #fff; text-align: center; }
.cta-final h2 { color: #fff; }
.cta-final p { color: var(--sur-rouge); max-width: 56ch; margin-left: auto; margin-right: auto; }
.cta-final .btn-primary { background: var(--charbon); }
.cta-final .btn-primary:hover { background: #000; }
.cta-note { font-size: 0.8rem; letter-spacing: 0.06em; text-transform: uppercase; color: var(--sur-rouge); margin-top: 18px; }

/* ---- Formulaire ---- */
.form-grid { display: grid; gap: 18px; grid-template-columns: 1fr 1fr; }
.form-grid .full { grid-column: 1 / -1; }
@media (max-width: 640px) { .form-grid { grid-template-columns: 1fr; } }
label { display: block; font-size: 0.8rem; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; color: var(--enc-2); margin-bottom: 6px; }
input, select, textarea {
  width: 100%; padding: 13px 14px; font-family: var(--sans); font-size: 1rem;
  border: 1px solid rgba(26, 26, 26, 0.38); border-radius: 3px; background: var(--blanc); color: var(--charbon);
}
input::placeholder, textarea::placeholder { color: rgba(26, 26, 26, 0.55); }
input:focus, select:focus, textarea:focus { outline: 2px solid var(--rouge); outline-offset: 1px; border-color: var(--rouge); }
.form-consent { display: flex; gap: 10px; align-items: flex-start; font-size: 0.85rem; color: var(--enc-2); }
.form-consent input { width: auto; margin-top: 3px; }
.form-consent label { text-transform: none; letter-spacing: 0; font-weight: 400; font-size: 0.85rem; margin: 0; }
.form-status { padding: 14px 16px; border-radius: 4px; font-size: 0.95rem; margin-top: 16px; }
.form-status--ok { background: rgba(46, 110, 74, 0.12); color: #24523A; }
.form-status--err { background: rgba(160, 40, 40, 0.10); color: var(--rouge-fonce); }
[hidden] { display: none !important; }

/* ---- À propos ---- */
.about-grid { display: grid; gap: 44px; grid-template-columns: minmax(260px, 380px) 1fr; align-items: start; }
@media (max-width: 800px) { .about-grid { grid-template-columns: 1fr; } }
.about-photo { border-radius: 4px; aspect-ratio: 3 / 4; object-fit: cover; width: 100%; }

/* ---- Breadcrumb ---- */
.breadcrumb { font-size: 0.8rem; color: var(--enc-3); padding: 18px 0 0; }
.breadcrumb ol { list-style: none; display: flex; flex-wrap: wrap; gap: 6px; margin: 0; padding: 0; }
.breadcrumb li + li::before { content: "/"; margin-right: 6px; color: var(--enc-3); }
.breadcrumb a { color: var(--enc-2); text-decoration: none; }
.breadcrumb a:hover { color: var(--rouge); }

/* ---- Page hero (pages internes) ---- */
.page-hero { padding: 56px 0 48px; }
.page-hero h1 { font-size: clamp(2rem, 4.5vw, 3.2rem); }
.page-hero p.lede { font-size: 1.08rem; color: var(--enc-2); max-width: 66ch; }

/* ---- Footer ---- */
footer.site-footer { background: var(--charbon); color: var(--ivo-2); padding: 56px 0 32px; }
.footer-grid { display: grid; gap: 36px; grid-template-columns: 2fr 1fr 1fr 1fr; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
@media (max-width: 800px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 520px) { .footer-grid { grid-template-columns: 1fr; } }
.footer-brand img { width: 40px; margin-bottom: 12px; }
.footer-brand p { font-size: 0.9rem; color: var(--ivo-3); max-width: 34ch; }
.site-footer h2 { font-family: var(--sans); font-size: 0.78rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--ivo-3); font-weight: 600; }
.site-footer ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 9px; }
.site-footer a { color: var(--ivo-2); text-decoration: none; font-size: 0.92rem; }
.site-footer a:hover { color: #fff; }
.footer-bottom {
  max-width: var(--maxw); margin: 44px auto 0; padding: 20px 24px 0;
  border-top: 1px solid var(--ligne-sombre);
  display: flex; flex-wrap: wrap; gap: 8px 24px; justify-content: space-between;
  font-size: 0.8rem; color: var(--ivo-3);
}
.footer-bottom a { font-size: 0.8rem; color: var(--ivo-3); }

/* ---- Révélations au scroll (fallback no-JS : visibles par défaut) ---- */
.reveal { opacity: 1; transform: none; }
.js .reveal { opacity: 0; transform: translateY(18px); transition: opacity 0.5s ease, transform 0.5s ease; }
.js .reveal.visible { opacity: 1; transform: none; }

/* ---- Mouvement réduit ---- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .js .reveal { opacity: 1; transform: none; transition: none; }
  *, *::before, *::after { transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; }
}

/* ---- Impression ---- */
@media print {
  .nav, .site-footer, .cta-final { display: none; }
}