/* Charte graphique Les Trois Tilleuls (Arpeggio) :
   vert #518370 + blanc ; titres Averta (remplacée ici par Figtree, libre et proche) ; texte Montserrat. */
@font-face { font-family: "Montserrat"; font-weight: 400; font-display: swap; src: url(fonts/montserrat-400.woff2) format("woff2"); }
@font-face { font-family: "Montserrat"; font-weight: 500; font-display: swap; src: url(fonts/montserrat-500.woff2) format("woff2"); }
@font-face { font-family: "Montserrat"; font-weight: 600; font-display: swap; src: url(fonts/montserrat-600.woff2) format("woff2"); }
@font-face { font-family: "Titres"; font-weight: 700; font-display: swap; src: local("Averta Bold"), local("Averta-Bold"), url(fonts/figtree-700.woff2) format("woff2"); }
@font-face { font-family: "Titres"; font-weight: 800; font-display: swap; src: local("Averta ExtraBold"), local("Averta-ExtraBold"), url(fonts/figtree-800.woff2) format("woff2"); }
@font-face { font-family: "Titres"; font-weight: 900; font-display: swap; src: local("Averta Black"), local("Averta-Black"), url(fonts/figtree-900.woff2) format("woff2"); }

:root {
  --green: #518370;
  --green-dark: #3d6656;
  --green-deep: #2c4b3f;
  --green-soft: #eef4f1;
  --green-line: #d5e3dc;
  --ink: #23302b;
  --muted: #5d6b65;
  --white: #fff;
  --radius: 14px;
  --font: "Montserrat", "Segoe UI", system-ui, -apple-system, sans-serif;
  --font-title: "Titres", "Montserrat", system-ui, sans-serif;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; scroll-padding-top: 84px; }
body { margin: 0; font-family: var(--font); color: var(--ink); background: var(--white); font-size: 17px; line-height: 1.7; }
img { max-width: 100%; display: block; }
a { color: var(--green-dark); }
h1, h2, h3 { font-family: var(--font-title); color: var(--green-deep); line-height: 1.15; margin: 0 0 .6em; letter-spacing: -.01em; }
h1 { font-weight: 900; }
h2 { font-size: clamp(1.8rem, 3.2vw, 2.5rem); font-weight: 900; }
h3 { font-size: 1.15rem; font-weight: 800; }

.wrap { width: min(1140px, 100% - 32px); margin-inline: auto; }
.narrow { max-width: 780px; }

/* En-tête */
.topbar { position: sticky; top: 0; z-index: 20; background: rgba(255,255,255,.96); backdrop-filter: blur(6px); box-shadow: 0 1px 0 rgba(0,0,0,.06); }
.topbar-inner { display: flex; align-items: center; justify-content: space-between; min-height: 76px; gap: 16px; }
.brand img { height: 52px; width: auto; }
.nav { display: flex; align-items: center; gap: 22px; }
.nav a { color: var(--ink); text-decoration: none; font-weight: 600; font-size: .92rem; }
.nav a:hover { color: var(--green); }
.menu-toggle { display: none; background: none; border: 2px solid var(--green); color: var(--green); border-radius: 999px; padding: 6px 16px; font: inherit; font-weight: 600; cursor: pointer; }

/* Boutons */
.btn { display: inline-block; background: var(--green); color: var(--white) !important; text-decoration: none; font: inherit; font-weight: 600; padding: 12px 26px; border-radius: 999px; border: 2px solid var(--green); cursor: pointer; transition: background .2s, border-color .2s; }
.btn:hover { background: var(--green-dark); border-color: var(--green-dark); }
.btn-ghost { background: transparent; border-color: currentColor; color: var(--white) !important; }
.btn-ghost:hover { background: rgba(255,255,255,.15); border-color: var(--white); }
.btn-outline { background: transparent; color: var(--green-dark) !important; }
.btn-outline:hover { background: var(--green-soft); border-color: var(--green-dark); }
.btn-small { padding: 7px 18px; }

/* Bandeau d'accueil */
.hero { position: relative; min-height: min(86vh, 720px); display: flex; align-items: flex-end; color: var(--white); overflow: hidden; }
.hero-bg { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.hero-overlay { position: absolute; inset: 0; background: linear-gradient(to top, rgba(32,58,48,.9) 0%, rgba(32,58,48,.45) 50%, rgba(32,58,48,.05) 100%); }
.hero-content { position: relative; padding-block: 64px; }
.hero-mark { width: 64px; height: auto; margin-bottom: 18px; }
.hero h1 { color: var(--white); font-size: clamp(2.6rem, 6.5vw, 4.6rem); margin-bottom: .2em; }
.eyebrow { text-transform: uppercase; letter-spacing: .14em; font-size: .78rem; font-weight: 500; color: #d6ebe2; margin: 0 0 .5em; }
.lead { font-size: clamp(1.05rem, 2vw, 1.3rem); max-width: 40ch; margin: 0 0 1.4em; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 1.2em; }
.hero-phone { color: var(--white); font-weight: 600; text-decoration: none; border-bottom: 1px solid rgba(255,255,255,.5); }

/* Sections */
.section { padding-block: clamp(56px, 8vw, 96px); }
.section-tint { background: var(--green-soft); }
.section-dark { background: var(--green); color: #f1f7f4; }
.section-dark h2 { color: var(--white); }
.section-dark a:not(.btn) { color: var(--white); }
.section-dark .form a { color: var(--green-dark); }
.intro { max-width: 70ch; color: var(--muted); margin-bottom: 2em; }
.lead-sm { font-family: var(--font-title); font-size: 1.25rem; color: var(--green); font-weight: 800; margin-top: -.3em; }
.split { display: grid; grid-template-columns: 1.1fr 1fr; gap: clamp(32px, 5vw, 64px); align-items: center; }
.split-top { align-items: start; }
.rounded { border-radius: var(--radius); box-shadow: 0 14px 40px rgba(44,75,63,.18); }

/* Galerie */
.tabs { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 24px; }
.tabs button { font: inherit; font-weight: 600; font-size: .92rem; border: 2px solid var(--green); background: var(--white); color: var(--green-dark); padding: 8px 18px; border-radius: 999px; cursor: pointer; }
.tabs button[aria-selected="true"] { background: var(--green); color: var(--white); }
.gallery { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 12px; }
.gallery[hidden] { display: none; }
.gallery img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; border-radius: 10px; cursor: zoom-in; transition: transform .2s, box-shadow .2s; }
.gallery img:hover { transform: translateY(-2px); box-shadow: 0 10px 24px rgba(0,0,0,.15); }

/* Appartements */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.card { background: var(--white); border-radius: var(--radius); padding: 28px; box-shadow: 0 6px 24px rgba(44,75,63,.08); border-top: 5px solid var(--green); }
.card-size { font-family: var(--font-title); font-size: 2.4rem; font-weight: 900; color: var(--green-deep); margin: 0 0 .3em; }
.card ul { margin: 0; padding-left: 1.1em; color: var(--muted); }
.card-tag { display: inline-block; margin: 1em 0 0; background: var(--green-soft); color: var(--green-dark); font-weight: 600; font-size: .82rem; padding: 4px 12px; border-radius: 999px; }

/* Services */
.services { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px 36px; }
.services div { border-left: 3px solid var(--green); padding-left: 18px; }
.services p { margin: 0; color: var(--muted); }
.services h3 { margin-bottom: .3em; }

/* FAQ */
details { background: var(--white); border-radius: 10px; margin-bottom: 10px; box-shadow: 0 2px 10px rgba(0,0,0,.04); }
summary { cursor: pointer; padding: 16px 48px 16px 20px; font-weight: 600; color: var(--green-deep); list-style: none; position: relative; }
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; position: absolute; right: 20px; top: 50%; transform: translateY(-50%); font-size: 1.4rem; color: var(--green); }
details[open] summary::after { content: "–"; }
details p { margin: 0; padding: 0 20px 18px; color: var(--muted); }

/* Documents */
.downloads { list-style: none; padding: 0; margin: 0; }
.downloads a { display: flex; justify-content: space-between; gap: 16px; padding: 18px 20px; border: 2px solid var(--green-line); border-radius: 10px; margin-bottom: 10px; text-decoration: none; color: var(--green-deep); font-weight: 600; }
.downloads a:hover { border-color: var(--green); }
.downloads span { color: var(--muted); font-weight: 400; font-size: .88rem; white-space: nowrap; }

/* Contact */
address { font-style: normal; margin-bottom: 1em; }
.contact-lines { margin-bottom: 1.6em; }
.map { position: relative; aspect-ratio: 16 / 11; border-radius: var(--radius); overflow: hidden; margin-top: 8px; background: var(--green-dark); }
.map iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }
.map-placeholder { position: absolute; inset: 0; display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; gap: 4px; padding: 24px;
  background: radial-gradient(circle at 30% 20%, rgba(255,255,255,.08) 0 2px, transparent 3px) 0 0 / 28px 28px, linear-gradient(135deg, var(--green-dark), var(--green-deep)); }
.map-placeholder img { width: 52px; height: auto; margin-bottom: 8px; }
.map-placeholder p { margin: 0 0 14px; font-size: .9rem; color: #d6ebe2; }
.map-placeholder strong { color: var(--white); font-size: 1rem; }
.map-placeholder .btn { background: var(--white); border-color: var(--white); color: var(--green-deep) !important; }
.map-placeholder .btn:hover { background: var(--green-soft); }
.map-links { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }

.form { background: var(--white); color: var(--ink); border-radius: var(--radius); padding: clamp(20px, 3vw, 32px); box-shadow: 0 20px 50px rgba(0,0,0,.15); }
.form h3 { margin-bottom: .8em; }
.form .row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.form label { display: block; font-size: .85rem; font-weight: 600; color: var(--green-deep); margin-bottom: 14px; }
.form input, .form select, .form textarea { display: block; width: 100%; margin-top: 6px; font: inherit; font-size: 1rem; color: var(--ink); padding: 11px 14px; border: 1.5px solid var(--green-line); border-radius: 8px; background: var(--white); }
.form input:focus, .form select:focus, .form textarea:focus { outline: none; border-color: var(--green); box-shadow: 0 0 0 3px rgba(81,131,112,.2); }
.form textarea { min-height: 120px; resize: vertical; }
.form .consent { display: flex; gap: 10px; align-items: flex-start; font-weight: 400; color: var(--muted); }
.form .consent input { width: auto; margin-top: 5px; }
.form .hp { position: absolute; left: -9999px; }
.captcha { min-height: 65px; margin-bottom: 14px; }
.form-status { margin: 12px 0 0; font-weight: 600; }
.form-status.ok { color: var(--green-dark); }
.form-status.err { color: #b3261e; }

/* Pied de page */
.footer { background: var(--green-deep); color: #c8dbd2; padding-block: 40px; font-size: .88rem; }
.footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 28px; flex-wrap: wrap; }
.footer img { width: 190px; height: auto; }
.footer p { margin: 0; }
.footer a, .footer button.linklike { color: var(--white); }
button.linklike { background: none; border: 0; padding: 0; font: inherit; text-decoration: underline; cursor: pointer; }

/* Visionneuse */
.lightbox { position: fixed; inset: 0; z-index: 50; background: rgba(20,32,27,.95); display: flex; align-items: center; justify-content: center; }
.lightbox[hidden] { display: none; }
.lightbox img { max-width: 92vw; max-height: 86vh; border-radius: 6px; }
.lightbox button { position: absolute; background: none; border: 0; color: var(--white); font-size: 3rem; cursor: pointer; padding: 12px 18px; line-height: 1; }
.lb-close { top: 8px; right: 8px; }
.lb-prev { left: 4px; }
.lb-next { right: 4px; }

/* Bandeau cookies */
.cookie { position: fixed; z-index: 60; left: 16px; right: 16px; bottom: 16px; max-width: 560px; background: var(--white); color: var(--ink); border-radius: var(--radius); box-shadow: 0 20px 60px rgba(0,0,0,.25); padding: 22px 24px; font-size: .9rem; border-top: 5px solid var(--green); }
.cookie[hidden] { display: none; }
.cookie h2 { font-size: 1.2rem; margin-bottom: .4em; }
.cookie p { margin: 0 0 1em; color: var(--muted); }
.cookie-actions { display: flex; flex-wrap: wrap; gap: 8px; }
.cookie-actions .btn { padding: 9px 18px; font-size: .9rem; }
.cookie-prefs { border-top: 1px solid var(--green-line); margin: 0 0 1em; padding-top: 12px; }
.cookie-prefs[hidden] { display: none; }
.cookie-prefs label { display: flex; gap: 10px; align-items: flex-start; margin-bottom: 10px; }
.cookie-prefs input { margin-top: 4px; accent-color: var(--green); }
.cookie-prefs small { display: block; color: var(--muted); }

/* Page simple (vie privée) */
.page { padding-block: 56px 80px; }
.page h2 { font-size: 1.4rem; margin-top: 1.6em; }

/* Responsive */
@media (max-width: 900px) {
  .menu-toggle { display: block; }
  .nav { display: none; position: absolute; top: 76px; left: 0; right: 0; flex-direction: column; align-items: stretch; gap: 0; background: var(--white); box-shadow: 0 10px 20px rgba(0,0,0,.08); padding: 8px 16px 16px; }
  .nav.open { display: flex; }
  .nav a { padding: 12px 4px; border-bottom: 1px solid var(--green-soft); }
  .nav .btn { margin-top: 10px; text-align: center; border-bottom: 0; }
  .split, .cards, .services { grid-template-columns: 1fr; }
  .footer-inner { flex-direction: column; text-align: center; }
}
@media (max-width: 520px) {
  body { font-size: 16px; }
  .brand img { height: 42px; }
  .gallery { grid-template-columns: repeat(2, 1fr); gap: 8px; }
  .form .row { grid-template-columns: 1fr; gap: 0; }
}