/* ===== Agence immobilière — charte bleu marine / or, confiance ===== */
:root {
  --navy: #13294b;
  --navy-2: #0c1d38;
  --navy-soft: #1d3a66;
  --gold: #c8a24a;
  --gold-d: #b08f3b;
  --ink: #1a2233;
  --muted: #5b677d;
  --line: #e2e7f0;
  --bg: #ffffff;
  --bg-alt: #f5f7fb;
  --radius: 14px;
  --shadow: 0 12px 30px rgba(19, 41, 75, .10);
  --shadow-sm: 0 4px 14px rgba(19, 41, 75, .07);
  --maxw: 1140px;
  --font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3 { line-height: 1.2; color: var(--navy); margin: 0 0 .5em; letter-spacing: -.01em; }
h1 { font-size: clamp(2.1rem, 5vw, 3.4rem); }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.4rem); }
h3 { font-size: 1.2rem; }
p { margin: 0 0 1rem; }
a { color: inherit; text-decoration: none; }
img, svg { max-width: 100%; display: block; }

.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 20px; }
.skip-link {
  position: absolute; left: -999px; top: 0; z-index: 200;
  background: var(--navy); color: #fff; padding: 10px 16px; border-radius: 0 0 8px 0;
}
.skip-link:focus { left: 0; }

/* ===== Buttons ===== */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
  padding: .72rem 1.3rem; border-radius: 999px; font-weight: 600; font-size: .96rem;
  border: 2px solid transparent; cursor: pointer; transition: transform .15s, box-shadow .2s, background .2s, color .2s;
  white-space: nowrap;
}
.btn:focus-visible { outline: 3px solid var(--gold); outline-offset: 2px; }
.btn:hover { transform: translateY(-2px); }
.btn-primary { background: var(--navy); color: #fff; }
.btn-primary:hover { background: var(--navy-soft); }
.btn-gold { background: var(--gold); color: var(--navy-2); }
.btn-gold:hover { background: var(--gold-d); }
.btn-outline { border-color: var(--navy); color: var(--navy); background: transparent; }
.btn-outline:hover { background: var(--navy); color: #fff; }
.btn-ghost { color: var(--navy); padding: .5rem .9rem; }
.btn-ghost:hover { color: var(--gold-d); transform: none; }
.btn-lg { padding: .95rem 1.7rem; font-size: 1.02rem; }
.btn-block { width: 100%; }

/* ===== Header ===== */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255, 255, 255, .92); backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; min-height: 70px; gap: 1rem; }
.brand { display: flex; align-items: center; gap: .55rem; font-weight: 800; font-size: 1.18rem; color: var(--navy); }
.brand-mark { color: var(--gold); display: flex; }
.nav { display: flex; align-items: center; gap: 1.4rem; }
.nav > a:not(.btn) { font-weight: 500; color: var(--ink); font-size: .96rem; position: relative; }
.nav > a:not(.btn):hover { color: var(--navy); }
.nav > a:not(.btn)::after {
  content: ""; position: absolute; left: 0; bottom: -6px; width: 0; height: 2px;
  background: var(--gold); transition: width .2s;
}
.nav > a:not(.btn):hover::after { width: 100%; }

.burger { display: none; flex-direction: column; gap: 5px; background: none; border: 0; padding: 8px; cursor: pointer; }
.burger span { width: 26px; height: 3px; background: var(--navy); border-radius: 2px; transition: transform .25s, opacity .2s; }
.burger[aria-expanded="true"] span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
.burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.burger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

/* ===== Hero ===== */
.hero { position: relative; color: #fff; overflow: hidden; background: var(--navy-2); }
.hero-bg { position: absolute; inset: 0; z-index: 0; }
.hero-skyline { width: 100%; height: 100%; object-fit: cover; }
.hero-bg::after {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(120% 90% at 20% 10%, rgba(19, 41, 75, .35), rgba(12, 29, 56, .92));
}
.hero-inner { position: relative; z-index: 1; padding: clamp(4rem, 9vw, 7rem) 20px clamp(3.5rem, 7vw, 6rem); max-width: 760px; }
.hero-eyebrow { color: var(--gold); font-weight: 600; letter-spacing: .08em; text-transform: uppercase; font-size: .8rem; margin-bottom: .8rem; }
.hero-title { color: #fff; margin-bottom: .6rem; }
.hero-sub { color: #cdd6e6; font-size: 1.15rem; max-width: 600px; }
.hero-cta { display: flex; flex-wrap: wrap; gap: .9rem; margin: 1.8rem 0 2rem; }
.hero .btn-outline { border-color: rgba(255, 255, 255, .55); color: #fff; }
.hero .btn-outline:hover { background: #fff; color: var(--navy); border-color: #fff; }
.trust-badges { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 1.4rem; }
.trust-badges li { display: flex; align-items: center; gap: .5rem; color: #dde4f0; font-size: .92rem; }
.trust-badges svg { color: var(--gold); }

/* ===== Strip ===== */
.strip { background: var(--navy); color: #fff; }
.strip-inner { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem; padding: 2rem 20px; text-align: center; }
.stat { display: flex; flex-direction: column; gap: .2rem; }
.stat-num { font-size: 1.6rem; font-weight: 800; color: var(--gold); }
.stat-label { font-size: .85rem; color: #c7d0e0; }

/* ===== Sections ===== */
.section { padding: clamp(3.5rem, 7vw, 5.5rem) 0; }
.section-alt { background: var(--bg-alt); }
.section-head { max-width: 720px; margin: 0 auto 2.5rem; text-align: center; }
.kicker { color: var(--gold-d); font-weight: 700; text-transform: uppercase; letter-spacing: .08em; font-size: .8rem; margin-bottom: .5rem; }
.section-lead, .lead { color: var(--muted); font-size: 1.05rem; }

.grid { display: grid; gap: 1.5rem; }
.grid-services { grid-template-columns: repeat(3, 1fr); }
.grid-biens { grid-template-columns: repeat(3, 1fr); }

.card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow-sm); transition: transform .2s, box-shadow .2s; }
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }

/* Services */
.service { padding: 1.8rem 1.6rem; }
.service .icon {
  display: inline-flex; align-items: center; justify-content: center;
  width: 54px; height: 54px; border-radius: 14px; margin-bottom: 1rem;
  background: linear-gradient(135deg, var(--navy), var(--navy-soft)); color: var(--gold);
}
.service h3 { margin-bottom: .35rem; }
.service p { color: var(--muted); margin: 0; font-size: .96rem; }

/* Biens */
.bien { overflow: hidden; }
.bien-media { position: relative; }
.bien-media svg { width: 100%; height: auto; display: block; }
.bien-tag {
  position: absolute; top: 12px; left: 12px;
  background: var(--navy); color: #fff; font-size: .76rem; font-weight: 600;
  padding: .3rem .7rem; border-radius: 999px;
}
.bien-tag--gold { background: var(--gold); color: var(--navy-2); }
.bien-body { padding: 1.2rem 1.3rem 1.5rem; }
.bien-body h3 { margin-bottom: .15rem; }
.bien-loc { color: var(--muted); font-size: .9rem; margin-bottom: .8rem; }
.bien-meta { list-style: none; display: flex; flex-wrap: wrap; gap: .4rem; padding: 0; margin: 0 0 1rem; }
.bien-meta li { background: var(--bg-alt); border: 1px solid var(--line); color: var(--ink); font-size: .8rem; padding: .25rem .6rem; border-radius: 8px; }
.bien-price { color: var(--navy); font-weight: 800; font-size: 1.3rem; margin: 0; }
.biens-cta { text-align: center; margin-top: 2.5rem; }

/* Two-col */
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; align-items: center; }
.checklist { list-style: none; padding: 0; margin: 1.2rem 0 1.8rem; display: grid; gap: .7rem; }
.checklist li { position: relative; padding-left: 2rem; color: var(--ink); }
.checklist li::before {
  content: ""; position: absolute; left: 0; top: 3px; width: 20px; height: 20px; border-radius: 50%;
  background: var(--gold)
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='none' stroke='%230c1d38' stroke-width='3' d='M5 12l4 4 10-10'/%3E%3C/svg%3E")
    center / 14px no-repeat;
}
.why-card { background: var(--navy); color: #fff; border-radius: var(--radius); padding: 2.4rem 2rem; box-shadow: var(--shadow); }
.why-card h3 { color: var(--gold); }
.why-card p { color: #cdd6e6; margin: 0; }
.why-ic { color: var(--gold); margin-bottom: 1rem; }

/* CTA band */
.cta-band { background: linear-gradient(135deg, var(--navy), var(--navy-soft)); color: #fff; }
.cta-inner { text-align: center; padding: clamp(3rem, 6vw, 4.5rem) 20px; max-width: 700px; margin: 0 auto; }
.cta-band h2 { color: #fff; }
.cta-inner p { color: #cdd6e6; font-size: 1.1rem; margin-bottom: 1.6rem; }

/* Contact */
.contact-grid { align-items: start; }
.contact-list { list-style: none; padding: 0; margin: 1.4rem 0 0; display: grid; gap: 1rem; }
.contact-list li { display: flex; align-items: center; gap: .7rem; color: var(--ink); }
.contact-list svg { color: var(--gold-d); flex: 0 0 auto; }
.contact-list a:hover { color: var(--gold-d); }

.form { padding: 1.8rem; }
.field { margin-bottom: 1.1rem; display: flex; flex-direction: column; gap: .35rem; }
.field label { font-weight: 600; font-size: .9rem; color: var(--navy); }
.field input, .field select, .field textarea {
  width: 100%; padding: .75rem .85rem; border: 1px solid var(--line); border-radius: 10px;
  font: inherit; color: var(--ink); background: #fff; transition: border .15s, box-shadow .15s;
}
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none; border-color: var(--navy); box-shadow: 0 0 0 3px rgba(19, 41, 75, .12);
}
.field textarea { resize: vertical; }
.form-success {
  margin: 1rem 0 0; padding: .85rem 1rem; border-radius: 10px;
  background: #eaf6ec; border: 1px solid #b9e3c0; color: #1d6b34; font-weight: 600; font-size: .95rem;
}

/* Footer */
.site-footer { background: var(--navy-2); color: #c7d0e0; padding: 3rem 0 1.6rem; }
.footer-inner { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 1.5rem; padding-bottom: 1.8rem; border-bottom: 1px solid rgba(255, 255, 255, .12); }
.footer-brand { color: #fff; font-weight: 800; font-size: 1.15rem; margin: 0 0 .3rem; }
.footer-meta { margin: 0; font-size: .9rem; }
.footer-nav { display: flex; flex-wrap: wrap; gap: 1.2rem; align-items: center; }
.footer-nav a:hover { color: var(--gold); }
.footer-bottom { display: flex; flex-wrap: wrap; justify-content: space-between; gap: .6rem; padding-top: 1.4rem; font-size: .85rem; }
.footer-bottom p { margin: 0; }
.credit { color: #9aa6bd; }
.credit strong { color: var(--gold); }

/* ===== Reveal ===== */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .6s ease, transform .6s ease; }
.reveal.is-visible { opacity: 1; transform: none; }

/* ===== Responsive ===== */
@media (max-width: 880px) {
  .grid-services, .grid-biens { grid-template-columns: repeat(2, 1fr); }
  .two-col { grid-template-columns: 1fr; gap: 2rem; }
  .strip-inner { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 720px) {
  .burger { display: flex; }
  .nav {
    position: fixed; inset: 70px 0 auto 0; flex-direction: column; align-items: stretch;
    background: #fff; padding: 1rem 20px 1.5rem; gap: .4rem; border-bottom: 1px solid var(--line);
    box-shadow: var(--shadow); transform: translateY(-130%); transition: transform .3s ease; max-height: calc(100vh - 70px); overflow-y: auto;
  }
  .nav.open { transform: translateY(0); }
  .nav > a:not(.btn) { padding: .7rem 0; border-bottom: 1px solid var(--line); }
  .nav .btn { margin-top: .4rem; }
}
@media (max-width: 520px) {
  .grid-services, .grid-biens { grid-template-columns: 1fr; }
  .hero-cta .btn { width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  * { scroll-behavior: auto !important; }
  .reveal { opacity: 1 !important; transform: none !important; transition: none !important; }
  .btn:hover, .card:hover { transform: none; }
}