/* =========================================================
   Arc de Vie — La Régence
   Système de design partagé
   Palette « nature du Bassin » : vert apaisant + crème chaud + or doux
   Pensé accessible (contraste, grande typo, focus visibles) :
   un atout pour notre public senior et malvoyant.
   ========================================================= */

:root {
  /* Couleurs */
  --vert: #3f8467;          /* vert principal (texte/liens, contraste AA sur blanc) */
  --vert-clair: #59A985;    /* vert de marque (accents) */
  --vert-pale: #eaf3ee;     /* fonds doux */
  --vert-fonce: #2c5f49;    /* titres, survols */
  --or: #b8863b;            /* accent chaleureux, sobre */
  --creme: #fbf9f4;         /* fond de page */
  --blanc: #ffffff;
  --encre: #23302a;         /* texte principal */
  --gris: #55635c;          /* texte secondaire */
  --bordure: #e3e7e2;

  /* Typographie */
  --serif: Georgia, "Times New Roman", "Noto Serif", serif;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;

  /* Rythme */
  --max: 1160px;
  --gap: clamp(1rem, 3vw, 2rem);
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 10px 30px rgba(44, 95, 73, 0.10);
  --shadow-sm: 0 4px 14px rgba(44, 95, 73, 0.08);
  --transition: 0.25s ease;
}

/* ------------------ Base ------------------ */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  font-family: var(--sans);
  font-size: 1.125rem;      /* 18px : confort de lecture */
  line-height: 1.75;
  color: var(--encre);
  background: var(--creme);
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }

a { color: var(--vert); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: var(--vert-fonce); }

h1, h2, h3, h4 { font-family: var(--serif); color: var(--vert-fonce); line-height: 1.2; font-weight: 700; }
h1 { font-size: clamp(2rem, 5vw, 3.1rem); }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.3rem); }
h3 { font-size: clamp(1.25rem, 2.5vw, 1.6rem); }
p { margin: 0 0 1.1rem; }
p:last-child { margin-bottom: 0; }

strong { color: var(--vert-fonce); }

/* Accessibilité : focus & lecteurs d'écran */
:focus-visible { outline: 3px solid var(--or); outline-offset: 2px; border-radius: 4px; }
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}
.skip-link {
  position: absolute; left: 1rem; top: -60px; z-index: 200;
  background: var(--vert-fonce); color: #fff; padding: 0.7rem 1.1rem;
  border-radius: 0 0 var(--radius-sm) var(--radius-sm); text-decoration: none;
  transition: top var(--transition);
}
.skip-link:focus { top: 0; color: #fff; }

/* ------------------ Layout ------------------ */
.container { width: min(100% - 2.4rem, var(--max)); margin-inline: auto; }
.section { padding: clamp(2.8rem, 7vw, 5rem) 0; }
.section-alt { background: var(--vert-pale); }
.section-tight { padding: clamp(2rem, 5vw, 3rem) 0; }
.narrow { max-width: 760px; margin-inline: auto; }
.center { text-align: center; }
.lead { font-size: 1.2rem; color: var(--gris); }
.eyebrow {
  display: inline-block; font-family: var(--sans); font-weight: 700;
  letter-spacing: 0.08em; text-transform: uppercase; font-size: 0.8rem;
  color: var(--or); margin-bottom: 0.6rem;
}

/* ------------------ En-tête ------------------ */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(251, 249, 244, 0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--bordure);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding: 0.6rem 0; }
.brand { display: inline-flex; align-items: center; gap: 0.6rem; text-decoration: none; }
.brand-logo { width: 46px; height: 46px; object-fit: contain; }
.brand-name { font-family: var(--serif); font-weight: 700; font-size: 1.5rem; color: var(--vert-fonce); }

.site-nav .nav-list { list-style: none; display: flex; align-items: center; gap: 0.3rem; padding: 0; }
.site-nav a {
  display: inline-block; padding: 0.55rem 0.85rem; border-radius: 999px;
  text-decoration: none; color: var(--encre); font-weight: 600; font-size: 1rem;
  transition: background var(--transition), color var(--transition);
}
.site-nav a:hover { background: var(--vert-pale); color: var(--vert-fonce); }
/* Page courante : soulignement discret (plus de pastille verte pleine) */
.site-nav a[aria-current="page"]:not(.nav-cta) {
  background: transparent; color: var(--vert-fonce);
  text-decoration: underline; text-decoration-color: var(--vert-clair);
  text-decoration-thickness: 3px; text-underline-offset: 7px;
}
.site-nav a.nav-cta { background: var(--or); color: #fff; }
.site-nav a.nav-cta:hover { background: #9c7130; }

/* Sous-menu déroulant (onglet « Public accueilli ») */
.has-submenu { position: relative; }
.has-submenu > a::after {
  content: "▾"; font-size: 0.7em; margin-left: 0.35em; color: var(--gris);
  vertical-align: middle;
}
.submenu {
  list-style: none; margin: 0; padding: 0.4rem;
  position: absolute; top: calc(100% + 6px); left: 0; z-index: 120;
  min-width: 260px; background: var(--blanc);
  border: 1px solid var(--bordure); border-radius: var(--radius-sm);
  box-shadow: var(--shadow); display: grid; gap: 0.1rem;
  opacity: 0; visibility: hidden; transform: translateY(6px);
  transition: opacity var(--transition), transform var(--transition), visibility var(--transition);
}
.has-submenu:hover > .submenu,
.has-submenu:focus-within > .submenu { opacity: 1; visibility: visible; transform: none; }
.submenu a { display: block; white-space: nowrap; border-radius: var(--radius-sm); font-weight: 600; }

.nav-toggle {
  display: none; width: 46px; height: 46px; border: 1px solid var(--bordure);
  background: #fff; border-radius: var(--radius-sm); cursor: pointer; position: relative;
}
.nav-toggle-bar, .nav-toggle-bar::before, .nav-toggle-bar::after {
  content: ""; position: absolute; left: 50%; top: 50%; width: 22px; height: 2px;
  background: var(--vert-fonce); transform: translate(-50%, -50%); transition: var(--transition);
}
.nav-toggle-bar::before { transform: translate(-50%, -8px); }
.nav-toggle-bar::after { transform: translate(-50%, 6px); }

@media (max-width: 900px) {
  .nav-toggle { display: block; }
  .site-nav {
    position: absolute; left: 0; right: 0; top: 100%;
    background: var(--creme); border-bottom: 1px solid var(--bordure);
    max-height: 0; overflow: hidden; transition: max-height 0.3s ease;
  }
  .site-nav.open { max-height: 85vh; overflow-y: auto; box-shadow: var(--shadow); }
  .site-nav .nav-list { flex-direction: column; align-items: stretch; gap: 0.15rem; padding: 0.8rem 1.2rem 1.2rem; }
  .site-nav a { padding: 0.8rem 1rem; border-radius: var(--radius-sm); font-size: 1.1rem; }
  /* Sur mobile, le sous-menu s'affiche déplié et indenté (pas de survol) */
  .has-submenu > a::after { display: none; }
  .submenu {
    position: static; opacity: 1; visibility: visible; transform: none;
    box-shadow: none; border: 0; border-left: 3px solid var(--vert-pale);
    background: transparent; min-width: 0; margin: 0 0 0.2rem 0.9rem; padding: 0;
  }
  .submenu a { font-size: 1rem; color: var(--gris); }
}

/* ------------------ Boutons ------------------ */
.btn {
  display: inline-block; padding: 0.85rem 1.6rem; border-radius: 999px;
  font-weight: 700; font-size: 1.05rem; text-decoration: none; cursor: pointer;
  border: 2px solid transparent; transition: var(--transition);
}
.btn-primary { background: var(--vert); color: #fff; box-shadow: var(--shadow-sm); }
.btn-primary:hover { background: var(--vert-fonce); color: #fff; transform: translateY(-2px); }
.btn-outline { background: transparent; color: var(--vert-fonce); border-color: var(--vert); }
.btn-outline:hover { background: var(--vert); color: #fff; }
.btn-lg { padding: 1rem 2rem; font-size: 1.15rem; }
.btn-row { display: flex; flex-wrap: wrap; gap: 0.9rem; }
.btn-row.center { justify-content: center; }

/* ------------------ Hero ------------------ */
.hero {
  background:
    radial-gradient(1200px 400px at 80% -10%, rgba(89,169,133,0.25), transparent),
    linear-gradient(160deg, var(--vert-pale), var(--creme));
  padding: clamp(2.6rem, 7vw, 5rem) 0;
}
.hero-grid { display: grid; grid-template-columns: 1.15fr 0.85fr; gap: clamp(1.5rem, 4vw, 3rem); align-items: center; }
.hero h1 { margin-bottom: 1rem; }
.hero .lead { margin-bottom: 1.6rem; }
.hero-media { border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); aspect-ratio: 4 / 3; }
.hero-media img { width: 100%; height: 100%; object-fit: cover; }
.hero-logo { width: min(280px, 70%); margin: 0 auto 1.5rem; }
.hero.hero-center { text-align: center; }
.hero.hero-center .lead { margin-inline: auto; max-width: 680px; }
@media (max-width: 820px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-media { order: -1; max-width: 480px; margin-inline: auto; }
}

/* Fil d'Ariane */
.breadcrumb { background: var(--vert-pale); border-bottom: 1px solid var(--bordure); }
.breadcrumb ol { list-style: none; display: flex; flex-wrap: wrap; gap: 0.35rem; padding: 0.7rem 0; margin: 0; font-size: 0.95rem; }
.breadcrumb li::after { content: "›"; margin-left: 0.35rem; color: var(--gris); }
.breadcrumb li:last-child::after { content: ""; }
.breadcrumb a { text-decoration: none; color: var(--vert); }
.breadcrumb [aria-current="page"] { color: var(--gris); }

/* En-tête de page (pages internes)
   Le titre et le chapô occupent la MÊME colonne centrée que la prose (820px),
   pour que tous les bords gauches s'alignent d'une section à l'autre. */
.page-head { padding: clamp(2.2rem, 6vw, 3.6rem) 0 clamp(1.4rem, 4vw, 2rem); }
.page-head .container { max-width: 760px; }
.page-head h1 { margin-bottom: 0.8rem; }
.page-head .lead { max-width: 100%; }

/* ------------------ Cartes ------------------ */
.grid { display: grid; gap: var(--gap); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 900px) { .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 620px) { .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; } }

.card {
  background: var(--blanc); border: 1px solid var(--bordure); border-radius: var(--radius);
  padding: 1.6rem; box-shadow: var(--shadow-sm); transition: var(--transition);
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.card h3 { margin-bottom: 0.5rem; }
.card p { color: var(--gris); font-size: 1.02rem; }
.card .icon { font-size: 2rem; line-height: 1; margin-bottom: 0.7rem; display: block; }
.card-link { display: block; text-decoration: none; color: inherit; }
.card-link .more { color: var(--vert); font-weight: 700; }

/* ------------------ Split (2 colonnes) ------------------ */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(1.6rem, 4vw, 3rem); align-items: center; }
.split.media-right .split-media { order: 2; }
.split-media { border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); }
.split-media img { width: 100%; }
@media (max-width: 820px) { .split { grid-template-columns: 1fr; } .split.media-right .split-media { order: -1; } }

/* ------------------ Listes à cocher ------------------ */
.checks { list-style: none; padding: 0; display: grid; gap: 0.6rem; }
.checks.cols-2 { grid-template-columns: 1fr 1fr; }
@media (max-width: 620px) { .checks.cols-2 { grid-template-columns: 1fr; } }
.checks li { position: relative; padding-left: 2rem; }
.checks li::before {
  content: "✓"; position: absolute; left: 0; top: 0;
  width: 1.4rem; height: 1.4rem; background: var(--vert-clair); color: #fff;
  border-radius: 50%; display: grid; place-items: center; font-size: 0.85rem; font-weight: 700;
}

/* ------------------ Silo : liens vers sous-pages ------------------ */
.silo { display: grid; gap: 1rem; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.silo a {
  display: flex; flex-direction: column; gap: 0.3rem; text-decoration: none;
  background: var(--blanc); border: 1px solid var(--bordure); border-left: 5px solid var(--vert-clair);
  border-radius: var(--radius-sm); padding: 1.1rem 1.3rem; transition: var(--transition); color: inherit;
}
.silo a:hover { border-left-color: var(--or); box-shadow: var(--shadow-sm); transform: translateX(3px); }
.silo a strong { color: var(--vert-fonce); font-size: 1.1rem; }
.silo a span { color: var(--gris); font-size: 0.98rem; }

/* ------------------ Bandeau CTA ------------------ */
.cta-band {
  background: linear-gradient(160deg, var(--vert-fonce), var(--vert));
  color: #fff; border-radius: var(--radius); padding: clamp(1.8rem, 5vw, 3rem);
  text-align: center;
}
.cta-band h2 { color: #fff; margin-bottom: 0.6rem; }
.cta-band p { color: rgba(255,255,255,0.9); max-width: 620px; margin-inline: auto; margin-bottom: 1.4rem; }
.cta-band .btn-primary { background: #fff; color: var(--vert-fonce); }
.cta-band .btn-primary:hover { background: var(--or); color: #fff; }
.cta-band .btn-outline { color: #fff; border-color: rgba(255,255,255,0.7); }
.cta-band .btn-outline:hover { background: #fff; color: var(--vert-fonce); }

/* ------------------ Chiffres ------------------ */
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 1rem; text-align: center; }
.stat { background: var(--blanc); border: 1px solid var(--bordure); border-radius: var(--radius); padding: 1.4rem; }
.stat .num { font-family: var(--serif); font-size: 2.4rem; color: var(--vert); font-weight: 700; }
.stat .label { color: var(--gris); font-size: 0.98rem; }

/* ------------------ Tableau comparatif ------------------ */
.table-wrap { overflow-x: auto; border-radius: var(--radius); border: 1px solid var(--bordure); }
table.compare { width: 100%; border-collapse: collapse; background: #fff; min-width: 560px; }
table.compare th, table.compare td { padding: 0.9rem 1.1rem; text-align: left; border-bottom: 1px solid var(--bordure); vertical-align: top; }
table.compare thead th { background: var(--vert-fonce); color: #fff; }
table.compare thead th:first-child { background: var(--vert-fonce); }
table.compare tbody th { background: var(--vert-pale); font-family: var(--sans); color: var(--vert-fonce); }
table.compare .yes { color: var(--vert); font-weight: 700; }
table.compare tr:last-child td, table.compare tr:last-child th { border-bottom: 0; }

/* ------------------ FAQ ------------------ */
.faq details {
  background: #fff; border: 1px solid var(--bordure); border-radius: var(--radius-sm);
  padding: 0.4rem 1.2rem; margin-bottom: 0.8rem;
}
.faq summary { cursor: pointer; font-weight: 700; color: var(--vert-fonce); padding: 0.7rem 0; font-size: 1.1rem; list-style: none; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::before { content: "＋"; color: var(--or); margin-right: 0.6rem; font-weight: 700; }
.faq details[open] summary::before { content: "－"; }
.faq details > p { padding-bottom: 0.9rem; color: var(--gris); }

/* ------------------ Contact ------------------ */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(1.5rem, 4vw, 3rem); align-items: start; }
@media (max-width: 820px) { .contact-grid { grid-template-columns: 1fr; } }
.contact-cards { display: grid; gap: 1rem; align-content: start; }
.contact-form-wrap { background: #fff; border: 1px solid var(--bordure); border-radius: var(--radius); padding: clamp(1.3rem, 3vw, 1.8rem); box-shadow: var(--shadow-sm); }
.contact-form-wrap h2 { margin-bottom: 0.6rem; }
.contact-card { background: #fff; border: 1px solid var(--bordure); border-radius: var(--radius); padding: 1.4rem 1.6rem; box-shadow: var(--shadow-sm); }
.contact-card .icon { font-size: 1.6rem; }
.contact-card a { font-weight: 700; }
.field { margin-bottom: 1.1rem; }
.field label { display: block; font-weight: 700; color: var(--vert-fonce); margin-bottom: 0.35rem; }
.field input, .field textarea, .field select {
  width: 100%; padding: 0.8rem 1rem; font: inherit; color: var(--encre);
  border: 1px solid var(--bordure); border-radius: var(--radius-sm); background: #fff;
}
.field input:focus, .field textarea:focus, .field select:focus { border-color: var(--vert); outline: 3px solid rgba(63,132,103,0.25); outline-offset: 0; }

/* ------------------ Pied de page ------------------ */
.site-footer { background: var(--vert-fonce); color: #d9e6df; margin-top: 2rem; }
.footer-grid { display: grid; grid-template-columns: 1.4fr repeat(4, 1fr); gap: 1.8rem; padding: clamp(2.4rem, 5vw, 3.4rem) 0 2rem; }
@media (max-width: 900px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .footer-grid { grid-template-columns: 1fr; } }
.footer-brand img { width: 60px; margin-bottom: 0.8rem; }
.footer-brand p { color: #b9cdc2; font-size: 0.98rem; }
.footer-col h2 { color: #fff; font-size: 1.05rem; font-family: var(--sans); margin-bottom: 0.7rem; }
.footer-col ul { list-style: none; padding: 0; display: grid; gap: 0.4rem; }
.footer-col a { color: #cfe0d7; text-decoration: none; font-size: 0.98rem; }
.footer-col a:hover { color: #fff; text-decoration: underline; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.14); padding: 1.1rem 0; font-size: 0.92rem; }
.footer-bottom p { color: #b9cdc2; text-align: center; }
.footer-bottom a { color: #eaf3ee; }

/* ------------------ Divers ------------------ */
.notice {
  background: #fff7e6; border: 1px solid #f0d89a; border-left: 5px solid var(--or);
  border-radius: var(--radius-sm); padding: 1rem 1.2rem; color: #6b5321;
}
.tag { display: inline-block; background: var(--vert-pale); color: var(--vert-fonce); border-radius: 999px; padding: 0.25rem 0.8rem; font-size: 0.85rem; font-weight: 700; }

/* Apparition douce au chargement (jamais bloquante) : le contenu est TOUJOURS
   visible, même sans JavaScript. L'animation ne fait que légèrement retarder
   l'opacité, sans jamais masquer durablement une information. */
.js .reveal { animation: fadeUp 0.7s ease both; }
@keyframes fadeUp { from { opacity: 0; transform: translateY(18px); } to { opacity: 1; transform: none; } }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
  .js .reveal { animation: none; }
}

/* ------------------ Finitions typographiques (homogénéité) ------------------ */
/* Titres équilibrés (pas de mot seul sur la dernière ligne) et paragraphes soignés */
h1, h2, h3, h4 { text-wrap: balance; }
p, .lead, li { text-wrap: pretty; }

/* Mesure de lecture homogène : la prose garde une largeur confortable,
   les leads centrés (sections d'introduction) restent centrés. */
.lead { max-width: 68ch; }
.center .lead { margin-inline: auto; }

/* Accent discret et cohérent sous chaque titre de section centré :
   donne un rythme visuel régulier d'une page à l'autre. */
.section .center > h2::after,
.section-tight .center > h2::after {
  content: ""; display: block; width: 60px; height: 4px; border-radius: 999px;
  background: var(--vert-clair); margin: 0.9rem auto 0;
}