/* ==========================================================================
   Résidence Château de Belmont – modern global stylesheet
   Fonts: local system stacks only (no external requests) so the site works
   fully offline. Serif headings for an elegant, timeless feel.
   ========================================================================== */

:root {
  --green-900: #07382b;
  --green-800: #0b4c3b;
  --green-700: #0f5f49;
  --green-600: #147a5e;
  --green-100: #e2efe9;
  --teal-600: #2e8b78;
  --sand-400: #d9b983;
  --sand-300: #e8cf9f;
  --sand-200: #f2e0bd;
  --cream-100: #faf4e9;
  --cream-50: #fdfaf3;
  --ink-900: #22332d;
  --ink-600: #465c54;
  --line: #e3d8c3;
  --white: #ffffff;
  --shadow: 0 10px 30px rgba(7, 56, 43, .10);
  --shadow-sm: 0 4px 14px rgba(7, 56, 43, .08);
  --radius: 14px;
  --radius-sm: 9px;
  --serif: "Palatino Linotype", Palatino, "Book Antiqua", Georgia, "Times New Roman", serif;
  --sans: "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  font-family: var(--sans);
  font-size: 1.02rem;
  line-height: 1.7;
  color: var(--ink-900);
  background: var(--cream-50);
  background-image:
    radial-gradient(circle at 15% -5%, rgba(20,122,94,.06), transparent 40%),
    radial-gradient(circle at 90% 10%, rgba(217,185,131,.14), transparent 45%);
  background-attachment: fixed;
}

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

a { color: var(--green-700); text-decoration: none; }
a:hover { color: var(--green-900); text-decoration: underline; }

h1, h2, h3, h4 { font-family: var(--serif); line-height: 1.2; color: var(--green-800); font-weight: 600; }

/* Skip link for accessibility */
.skip-link {
  position: absolute; left: -999px; top: 0; z-index: 100;
  background: var(--green-700); color: #fff; padding: .6rem 1rem; border-radius: 0 0 6px 0;
}
.skip-link:focus { left: 0; }

/* Centered shell */
.wrap {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 clamp(1rem, 4vw, 2.4rem);
}

/* ----------------------------- Header ---------------------------- */
.site-header { background: linear-gradient(135deg, var(--green-900), var(--green-700)); color: #fff; }
.site-header .wrap { padding-top: .6rem; padding-bottom: .6rem; }

.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 1rem; flex-wrap: wrap; }

.brand { display: flex; align-items: center; gap: .8rem; color: #fff; }
.brand img { width: clamp(150px, 30vw, 230px); }
.brand:hover { text-decoration: none; }

.lang-switch { margin-left: auto; order: 3; }
.lang-switch a, .lang-switch span {
  display: inline-block; padding: .35rem .8rem; border-radius: 999px;
  font-size: .82rem; font-weight: 600; color: #fff; text-decoration: none;
}
.lang-switch a { background: rgba(255,255,255,.12); }
.lang-switch a:hover { background: var(--sand-300); color: var(--green-900); }
.lang-switch .active { background: var(--sand-300); color: var(--green-900); }

/* Primary navigation */
.main-nav { width: 100%; order: 4; margin-top: .55rem; }
.main-nav ul { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: .25rem; }
.main-nav a {
  display: block; padding: .5rem .95rem; border-radius: 8px;
  color: #eaf5f0; font-weight: 600; font-size: .95rem; text-decoration: none;
}
.main-nav a:hover { background: rgba(255,255,255,.16); text-decoration: none; }
.main-nav a[aria-current="page"] { background: var(--sand-300); color: var(--green-900); }

/* ----------------------------- Hero ----------------------------- */
.hero {
  background: linear-gradient(120deg, var(--cream-100), #fff);
  border-bottom: 3px solid var(--sand-300);
  padding: clamp(2rem, 5vw, 3.6rem) 0;
}
.hero .wrap { display: grid; grid-template-columns: 1.05fr .95fr; gap: clamp(1.5rem, 4vw, 3rem); align-items: center; }
.hero-eyebrow {
  display: inline-block; text-transform: uppercase; letter-spacing: .12em;
  font-size: .78rem; font-weight: 700; color: var(--teal-600); margin-bottom: .6rem;
}
.hero h1 { font-size: clamp(1.9rem, 4.4vw, 2.9rem); margin: 0 0 .7rem; }
.hero p.lede { font-size: clamp(1.05rem, 2vw, 1.2rem); color: var(--ink-600); max-width: 44ch; }
.hero img { border-radius: var(--radius); box-shadow: var(--shadow); }

.btn, .btn-secondary {
  display: inline-block; margin-top: 1.4rem; padding: .75rem 1.5rem; border-radius: 999px;
  font-weight: 700; font-size: .95rem; text-decoration: none;
}
.btn { background: var(--green-700); color: #fff; }
.btn:hover { background: var(--green-900); color: #fff; text-decoration: none; }
.btn-secondary { background: transparent; color: var(--green-700); border: 2px solid var(--sand-300); }
.btn-secondary:hover { border-color: var(--green-700); text-decoration: none; }

/* ----------------------------- Sections / layout ----------------------------- */
main { padding: clamp(2rem, 5vw, 3.4rem) 0; }

.page-title { padding-bottom: 1.4rem; }
.page-title h1 { font-size: clamp(1.8rem, 3.6vw, 2.5rem); margin: 0 0 .35rem; }
.breadcrumbs { font-size: .85rem; color: var(--ink-600); margin-bottom: .9rem; }
.breadcrumbs a { color: var(--teal-600); }

.split { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(1.4rem, 3vw, 2.4rem); align-items: start; }
.split.reverse .media { order: 2; }
.split .media { position: sticky; top: 1.5rem; }
.split .media img { border-radius: var(--radius); box-shadow: var(--shadow-sm); width: 100%; }
.split .media figcaption { font-size: .82rem; color: var(--ink-600); margin-top: .55rem; }

.content-block { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: clamp(1.4rem, 3vw, 2.2rem); box-shadow: var(--shadow-sm); }
.content-block h2 { margin-top: 0; font-size: 1.5rem; }
.content-block .lede { font-size: 1.1rem; color: var(--ink-600); }

.feature-list { margin: 1.1rem 0 0; padding: 0; list-style: none; display: grid; gap: .7rem; }
.feature-list li { padding: .85rem 1rem; background: var(--cream-100); border: 1px solid var(--line); border-radius: var(--radius-sm); }
.feature-list li strong { color: var(--green-800); }

/* Cards grid */
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 1.2rem; margin-top: .4rem; }
.card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 1.4rem; box-shadow: var(--shadow-sm); transition: transform .15s ease, box-shadow .15s ease; }
.card:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
.card h3 { margin: 0 0 .45rem; font-size: 1.15rem; }
.card p { margin: 0; color: var(--ink-600); font-size: .95rem; }
.card .icon { font-size: 1.6rem; }

/* Homepage extra modules */
.home-block { padding: 3rem 0; }
.home-block.alt { background: var(--cream-100); border-block: 1px solid var(--line); }
.home-block h2 { font-size: clamp(1.6rem, 3vw, 2.1rem); margin: 0 0 .4rem; text-align: center; }
.home-block .sub { text-align: center; color: var(--ink-600); max-width: 60ch; margin: 0 auto 1.8rem; }

#advantages .card { text-align: center; }
#advantages .card .icon { font-size: 2rem; }

#faq-preview details { background: #fff; border: 1px solid var(--line); border-radius: var(--radius-sm); padding: .9rem 1.1rem; margin-bottom: .7rem; }
#faq-preview summary { cursor: pointer; font-weight: 700; color: var(--green-800); }
#faq-preview details p { margin: .6rem 0 0; color: var(--ink-600); }

/* Contact grid */
.contact-cols { display: grid; grid-template-columns: 1fr 1fr; gap: 1.4rem; }
.contact-cols .addr { background: var(--cream-100); border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 1rem 1.2rem; }
.contact-cols h3 { margin: 0 0 .5rem; font-size: 1.05rem; }
.contact-cols p { margin: .2rem 0; }

/* FAQ page */
.faq-list details { background: #fff; border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 1rem 1.2rem; margin-bottom: .8rem; }
.faq-list summary { cursor: pointer; font-weight: 700; color: var(--green-800); font-size: 1.05rem; }
.faq-list details p { margin: .7rem 0 0; color: var(--ink-600); }

/* Gallery */
.gallery { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 1rem; }
.gallery figure { margin: 0; background: #fff; border: 1px solid var(--line); border-radius: var(--radius-sm); padding: .5rem; box-shadow: var(--shadow-sm); }
.gallery img { border-radius: 6px; }
.gallery figcaption { font-size: .85rem; color: var(--ink-600); padding: .5rem .2rem 0; text-align: center; }

/* Definition table (overnight, etc.) */
table.details { width: 100%; border-collapse: collapse; margin: 1rem 0; }
table.details th, table.details td { text-align: left; padding: .7rem .9rem; border-bottom: 1px solid var(--line); vertical-align: top; }
table.details th { width: 32%; color: var(--green-800); white-space: nowrap; }

/* Secondary in-page sub-navigation */
.subnav { list-style: none; display: flex; flex-wrap: wrap; gap: .5rem; margin: 0 0 1.6rem; padding: 0; }
.subnav a {
  display: inline-block; padding: .45rem .95rem; border: 2px solid var(--sand-300);
  border-radius: 999px; color: var(--green-700); font-weight: 600; font-size: .88rem; text-decoration: none;
}
.subnav a:hover { border-color: var(--green-700); text-decoration: none; }
.subnav a.current { background: var(--green-700); border-color: var(--green-700); color: #fff; }

/* ----------------------------- Footer ----------------------------- */
.site-footer { background: var(--green-900); color: #cfe3db; margin-top: 2rem; }
.site-footer .wrap { padding-top: 2.2rem; padding-bottom: 2.2rem; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 2rem; }
.footer-grid h3 { color: var(--sand-300); font-size: 1.02rem; margin: 0 0 .7rem; }
.footer-grid ul { list-style: none; margin: 0; padding: 0; }
.footer-grid li { margin-bottom: .35rem; }
.footer-grid a { color: #d9eaf3; }
.footer-grid a:hover { color: #fff; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.14); margin-top: 1.8rem; padding-top: 1.2rem; font-size: .82rem; display: flex; flex-wrap: wrap; gap: .5rem 1.5rem; justify-content: space-between; }

/* ----------------------------- Responsive ----------------------------- */
@media (max-width: 860px) {
  .hero .wrap, .split { grid-template-columns: 1fr; }
  .split .media { position: static; order: 2; }
  .split.reverse .media { order: 1; }
  .contact-cols, .footer-grid { grid-template-columns: 1fr; }
  .main-nav ul { flex-direction: column; }
  .main-nav a { padding: .6rem .8rem; }
  .lang-switch { margin-left: 0; order: 2; }
}

@media (prefers-reduced-motion: reduce) {
  * { scroll-behavior: auto !important; }
  .card { transition: none; }
}