/*
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  Cabinet Rivière — style « minimaliste clair » (démo fictive)
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  Un site réalisé par Webastide — Création de sites web · webastide.fr
  Antoine Lachaize · © 2026 Webastide
  ───────────────────────────────────────────────────────────────────────────
  Parti pris : blanc dominant, filets fins, typographie sobre, beaucoup
  d'air, une seule couleur d'accent (vert sauge). Façon « Suisse ».
  Feuille de style autonome (ne dépend pas du socle).
  ═══════════════════════════════════════════════════════════════════════════
*/

:root {
  --encre:   #191F1C;
  --encre-2: #636B66;   /* gris-vert : contraste AA sur blanc et fond clair */
  --blanc:   #FFFFFF;
  --gris:    #ECEFEC;   /* filets, fonds très légers */
  --gris-2:  #F8FAF8;   /* fond de section alternée */
  --accent:  #3F7A64;   /* Vert sauge apaisant */
  --accent-fonce: #305e4d;
  --sans:    'Inter', -apple-system, 'Segoe UI', Arial, sans-serif;
  --largeur: 1080px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 90px; }
body {
  font-family: var(--sans); font-size: 16px; line-height: 1.75;
  color: var(--encre); background: var(--blanc);
  -webkit-font-smoothing: antialiased; overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 2px; }
.wrap { width: 100%; max-width: var(--largeur); margin: 0 auto; padding: 0 40px; }

.skip {
  position: absolute; left: 16px; top: -60px; z-index: 200;
  background: var(--encre); color: #fff; padding: 10px 18px;
  font-size: .85rem; font-weight: 600; border-radius: 6px; transition: top .25s;
}
.skip:focus { top: 16px; }

.label { display: inline-block; font-size: .72rem; font-weight: 600; letter-spacing: .16em; text-transform: uppercase; color: var(--accent); }
.btn {
  display: inline-block; font-size: .9rem; font-weight: 600;
  padding: 14px 28px; border-radius: 100px; transition: background .25s, border-color .25s, transform .25s;
}
.btn--plein { background: var(--accent); color: #fff; }
.btn--plein:hover { background: var(--accent-fonce); transform: translateY(-2px); }
.btn--ligne { border: 1px solid var(--gris); color: var(--encre); }
.btn--ligne:hover { border-color: var(--encre); }

/* ── Navigation ───────────────────────────────────────────────────── */
.nav { position: fixed; top: 0; left: 0; right: 0; z-index: 100; background: rgba(255,255,255,.9); backdrop-filter: blur(10px); transition: border-color .3s; border-bottom: 1px solid transparent; }
.nav.est-defile { border-bottom-color: var(--gris); }
.nav__inner { max-width: var(--largeur); margin: 0 auto; padding: 20px 40px; display: flex; align-items: center; justify-content: space-between; }
.nav__logo { font-weight: 700; font-size: 1.1rem; letter-spacing: -.01em; display: flex; align-items: center; gap: 9px; }
.nav__logo .pt { width: 8px; height: 8px; border-radius: 50%; background: var(--accent); }
.nav__menu { display: flex; align-items: center; gap: 32px; }
.nav__menu a:not(.nav__cta) { font-size: .9rem; color: var(--encre-2); transition: color .2s; position: relative; }
.nav__menu a:not(.nav__cta)::after { content: ""; position: absolute; left: 0; bottom: -5px; width: 100%; height: 1.5px; background: var(--accent); transform: scaleX(0); transform-origin: right; transition: transform .3s; }
.nav__menu a:not(.nav__cta):hover { color: var(--encre); }
.nav__menu a:not(.nav__cta):hover::after { transform: scaleX(1); transform-origin: left; }
.nav__cta { color: var(--accent); font-weight: 600; }
.nav__burger { display: none; background: none; border: none; cursor: pointer; width: 26px; height: 18px; position: relative; z-index: 120; }
.nav__burger span { position: absolute; left: 0; height: 2px; width: 100%; background: var(--encre); transition: .3s; }
.nav__burger span:nth-child(1) { top: 0; } .nav__burger span:nth-child(2) { top: 8px; } .nav__burger span:nth-child(3) { top: 16px; }
.nav__burger[aria-expanded="true"] span:nth-child(1) { top: 8px; transform: rotate(45deg); }
.nav__burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav__burger[aria-expanded="true"] span:nth-child(3) { top: 8px; transform: rotate(-45deg); }

/* ── Accueil sobre ────────────────────────────────────────────────── */
.hero { padding: 180px 0 110px; }
.hero__grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 70px; align-items: center; }
.hero h1 { font-size: clamp(2.6rem, 5.5vw, 4.2rem); line-height: 1.08; letter-spacing: -.03em; font-weight: 700; margin: 20px 0 26px; }
.hero p { font-size: 1.15rem; color: var(--encre-2); max-width: 46ch; margin-bottom: 34px; }
.hero__actions { display: flex; gap: 14px; flex-wrap: wrap; }
.hero__visuel img { width: 100%; aspect-ratio: 4/5; object-fit: cover; border-radius: 6px; }

/* Bande de repères (chiffres, fins filets) */
.reperes { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--gris); border-bottom: 1px solid var(--gris); }
.reperes div { padding: 34px 20px; text-align: center; border-left: 1px solid var(--gris); }
.reperes div:first-child { border-left: none; }
.reperes .k { font-size: 2.2rem; font-weight: 700; letter-spacing: -.02em; }
.reperes .l { font-size: .85rem; color: var(--encre-2); }

/* Sections */
.sec { padding: 110px 0; }
.sec--gris { background: var(--gris-2); }
.sec__tete { max-width: 560px; margin-bottom: 60px; }
.sec__tete h2 { font-size: clamp(1.9rem, 4vw, 2.8rem); line-height: 1.12; letter-spacing: -.02em; font-weight: 700; margin: 14px 0 16px; }
.sec__tete p { color: var(--encre-2); }

/* Approche : 3 colonnes numérotées, filets fins */
.cols { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--gris); border: 1px solid var(--gris); border-radius: 8px; overflow: hidden; }
.col { background: var(--blanc); padding: 40px 34px; transition: background .25s; }
.col .n { font-size: .85rem; font-weight: 700; color: var(--accent); letter-spacing: .1em; }
.col h3 { font-size: 1.25rem; font-weight: 700; margin: 16px 0 10px; letter-spacing: -.01em; }
.col p { color: var(--encre-2); font-size: .96rem; }
.avis__note { color: var(--accent); letter-spacing: 2px; }
.avis__txt { margin-top: 12px; }
.avis__nom { margin-top: 12px; font-weight: 700; color: var(--encre); }

/* Motifs de consultation */
.motifs { list-style: none; display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.motifs__item { border: 1px solid var(--gris); border-radius: 10px; padding: 26px 24px; background: var(--blanc); transition: border-color .25s, transform .25s; }
.motifs__item:hover { border-color: var(--accent); transform: translateY(-3px); }
.motifs__item h3 { font-size: 1.1rem; font-weight: 700; letter-spacing: -.01em; margin-bottom: 8px; }
.motifs__item p { color: var(--encre-2); font-size: .93rem; }

/* Deux colonnes texte (à propos) */
.duo { display: grid; grid-template-columns: 1fr 1fr; gap: 70px; align-items: center; }
.duo img { width: 100%; aspect-ratio: 1/1; object-fit: cover; border-radius: 6px; }
.duo h2 { font-size: clamp(1.8rem, 4vw, 2.6rem); line-height: 1.12; letter-spacing: -.02em; font-weight: 700; margin: 14px 0 18px; }
.duo p { color: var(--encre-2); margin-bottom: 14px; }

/* Infos pratiques / tarifs : liste à filets */
.liste { max-width: 640px; }
.liste__ligne { display: flex; justify-content: space-between; align-items: baseline; gap: 20px; padding: 20px 0; border-bottom: 1px solid var(--gris); }
.liste__ligne span:first-child { font-weight: 600; }
.liste__ligne span:last-child { color: var(--encre-2); text-align: right; }

/* Contact */
.contact { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.contact h3 { font-size: .95rem; font-weight: 700; margin-bottom: 6px; }
.contact p, .contact address { font-style: normal; color: var(--encre-2); margin-bottom: 22px; line-height: 1.9; }
.contact a { color: var(--accent); }
.contact__map iframe { width: 100%; height: 320px; border: 0; border-radius: 6px; filter: grayscale(.4); transition: filter .5s; }
.contact__map:hover iframe { filter: grayscale(0); }

/* Pied */
.pied { border-top: 1px solid var(--gris); padding: 44px 0; }
.pied__inner { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 16px; }
.pied__logo { font-weight: 700; display: flex; align-items: center; gap: 9px; }
.pied__logo .pt { width: 8px; height: 8px; border-radius: 50%; background: var(--accent); }
.pied small { color: var(--encre-2); font-size: .85rem; }
.pied__credit { text-align: center; margin-top: 18px; font-size: .82rem; color: var(--encre-2); }
.pied__credit strong { color: var(--accent); font-weight: 700; }

/* Apparition */
.reveal { opacity: 1; }
.js-anim .reveal { opacity: 0; transform: translateY(18px); transition: opacity .7s ease, transform .7s ease; }
.js-anim .reveal.est-visible { opacity: 1; transform: none; }

/* ── Mobile ───────────────────────────────────────────────────────── */
@media (max-width: 820px) {
  .nav__burger { display: block; }
  .nav__menu { position: fixed; inset: 0; background: #fff; flex-direction: column; justify-content: center; gap: 26px; transform: translateX(100%); transition: transform .35s; }
  .nav__menu.est-ouvert { transform: none; }
  .nav__menu a:not(.nav__cta) { font-size: 1.3rem; }
  .hero__grid, .cols, .duo, .contact, .motifs { grid-template-columns: 1fr; gap: 40px; }
  .motifs { gap: 16px; }
  .hero { padding-top: 130px; }
  .hero__visuel { order: -1; }
  .reperes { grid-template-columns: 1fr; }
  .reperes div { border-left: none; border-top: 1px solid var(--gris); }
  .reperes div:first-child { border-top: none; }
  .wrap, .nav__inner { padding-left: 24px; padding-right: 24px; }
}
@media (max-width: 560px) {
  .motifs { grid-template-columns: 1fr; }
}

/* Respect du réglage « réduire les animations » */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .001ms !important; animation-duration: .001ms !important; }
  .js-anim .reveal { opacity: 1; transform: none; }
}