/* Atrium Immobilier — maquette Express (courtier immobilier) — CroisierWeb 2026 */
:root { --navy: #15304a; --navy-2: #1f4566; --copper: #b8693d; --copper-d: #9c5530; --sand: #f3ece1; --ink: #1b2733; --bg: #fbf9f5; --tint: #eef2f5; --line: #e2e4e2; --muted: #5d6a75;
  --mk-accent: var(--navy); --mk-accent-fg: #fff; --mk-surface: #fff; --mk-fg: var(--ink); --mk-radius: 12px; --mk-font: "Instrument", system-ui, sans-serif; }
* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; }
body { margin: 0; font: 400 17px/1.6 "Instrument", system-ui, -apple-system, "Segoe UI", sans-serif; color: var(--ink); background: var(--bg); overflow-x: hidden; }
img, svg { display: block; max-width: 100%; }
a { color: inherit; }
h1, h2, h3, .h3 { font-family: "Cormorant", Georgia, serif; font-weight: 600; line-height: 1.08; letter-spacing: -.01em; margin: 0 0 .5em; }
h1 { font-size: clamp(2.5rem, 5.4vw, 4.2rem); }
h1 em { font-style: italic; color: var(--copper); }
h2 { font-size: clamp(2rem, 3.6vw, 2.9rem); }
h3, .h3 { font-size: 1.45rem; }
.wrap { width: min(1180px, 100% - 40px); margin-inline: auto; }
.sec { padding: clamp(60px, 8vw, 100px) 0; }
.sec.top0 { padding-top: 0; }
.sec-tint { background: var(--sand); }
.muted { color: var(--muted); }
.small { font-size: .86rem; }
.ico { width: 1.15em; height: 1.15em; flex: none; }
.visually-hidden, .seg-f legend.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.kick { font: 700 .78rem "Instrument", sans-serif; letter-spacing: .16em; text-transform: uppercase; color: var(--copper-d); margin: 0 0 14px; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 10px; min-height: 52px; padding: 0 24px; border-radius: 6px; background: var(--copper); color: #fff; border: 2px solid var(--copper); font: 700 .95rem "Instrument", sans-serif; text-decoration: none; cursor: pointer; transition: background .2s, color .2s, border-color .2s; }
.btn:hover { background: var(--copper-d); border-color: var(--copper-d); }
.btn .ico { width: 18px; height: 18px; }
.btn-light { background: #fff; color: var(--navy); border-color: #fff; }
.btn-light:hover { background: var(--copper); border-color: var(--copper); color: #fff; }
.btn-ghost { background: transparent; color: #fff; border-color: rgba(255, 255, 255, .45); }
.btn-ghost:hover { background: #fff; color: var(--navy); border-color: #fff; }
.btn-sm { min-height: 42px; padding: 0 16px; font-size: .86rem; }
.btn-wide { width: 100%; }
:focus-visible { outline: 3px solid var(--copper); outline-offset: 3px; }
.more { display: inline-flex; align-items: center; gap: 8px; font-weight: 700; color: var(--navy); text-decoration: none; }
.more .ico { width: 16px; }
.more:hover { color: var(--copper-d); }

.hd { position: sticky; top: 0; z-index: 50; background: rgba(251, 249, 245, .94); backdrop-filter: blur(10px); border-bottom: 1px solid var(--line); }
.hd-in { display: flex; align-items: center; justify-content: space-between; gap: 20px; min-height: 76px; }
.logo { display: inline-flex; align-items: center; gap: 12px; text-decoration: none; }
.logo-mark { width: 40px; height: 40px; }
.logo > span { display: grid; font: 600 1.7rem/1 "Cormorant", serif; color: var(--navy); }
.logo small { font: 500 .74rem "Instrument", sans-serif; color: var(--muted); margin-top: 3px; letter-spacing: .03em; }
.nav { display: flex; align-items: center; gap: 26px; }
.nav a:not(.btn) { text-decoration: none; font-weight: 600; }
.nav a[aria-current="page"]:not(.btn) { color: var(--copper-d); }
.nav-tel { display: inline-flex; align-items: center; gap: 8px; color: var(--navy); }
.nav-tel .ico { color: var(--copper); }
.burger { display: none; }

.hero { padding: clamp(40px, 6vw, 80px) 0 clamp(50px, 7vw, 90px); }
.hero-in { display: grid; grid-template-columns: 1.05fr .95fr; gap: clamp(30px, 5vw, 70px); align-items: center; }
.lead { font-size: 1.15rem; color: var(--muted); max-width: 560px; }
.hero-search { display: grid; grid-template-columns: 1fr 1fr auto; gap: 10px; align-items: end; margin-top: 28px; padding: 14px; background: #fff; border: 1px solid var(--line); border-radius: 12px; box-shadow: 0 20px 40px -30px rgba(21, 48, 74, .5); }
.hero-search label { display: grid; gap: 4px; font-size: .78rem; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; color: var(--muted); }
.hero-search select { min-height: 48px; padding: 0 10px; border: 2px solid var(--line); border-radius: 8px; background: #fff; font: 600 .95rem "Instrument", sans-serif; color: var(--ink); text-transform: none; letter-spacing: 0; }
.hero-art { position: relative; border-radius: 160px 16px 16px 16px; overflow: hidden; box-shadow: 0 30px 60px -34px rgba(21, 48, 74, .55); aspect-ratio: 5 / 4; }
.hero-art .bien-svg { width: 100%; height: 100%; }
.hero-badge { position: absolute; right: 18px; bottom: 18px; background: var(--navy); color: #fff; border-radius: 10px; padding: 12px 16px; box-shadow: 0 10px 24px rgba(0, 0, 0, .18); }
.hero-badge span { display: block; font-size: .76rem; color: #c8d6e2; }
.hero-badge strong { font: 600 1.2rem "Cormorant", serif; }

.head { margin-bottom: 34px; max-width: 720px; }
.head.split { max-width: none; display: flex; justify-content: space-between; align-items: flex-end; gap: 20px; }
.svc { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.svc-i { padding: 28px; background: #fff; border: 1px solid var(--line); border-radius: 14px; }
.svc-i p { margin: 0; }
.svc-ico { display: grid; place-items: center; width: 50px; height: 50px; border-radius: 50%; background: var(--sand); color: var(--copper-d); margin-bottom: 16px; }
.svc-ico .ico { width: 24px; height: 24px; }

.biens { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.bien { background: #fff; border: 1px solid var(--line); border-radius: 14px; overflow: hidden; height: 100%; display: flex; flex-direction: column; transition: transform .2s, box-shadow .2s; scroll-margin-top: 100px; }
.bien:hover { transform: translateY(-4px); box-shadow: 0 20px 40px -26px rgba(21, 48, 74, .45); }
.bien[hidden] { display: none; }
.bien-img { position: relative; aspect-ratio: 16 / 10; }
.bien-svg { width: 100%; height: 100%; }
.bien-tag { position: absolute; top: 12px; left: 12px; padding: 4px 10px; border-radius: 4px; background: var(--copper); color: #fff; font-size: .74rem; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; }
.bien-tag.is-reserved { background: var(--navy); }
.bien-b { padding: 18px 20px 20px; display: flex; flex-direction: column; flex: 1; }
.bien-loc { display: flex; align-items: center; gap: 6px; margin: 0 0 4px; font-size: .84rem; font-weight: 600; color: var(--copper-d); }
.bien-loc .ico { width: 15px; }
.bien h3 { font-size: 1.5rem; margin-bottom: 10px; }
.bien-specs { list-style: none; padding: 0; margin: 0 0 16px; display: flex; flex-wrap: wrap; gap: 6px; }
.bien-specs li { display: inline-flex; align-items: center; gap: 5px; padding: 4px 10px; border-radius: 999px; background: var(--tint); font-size: .84rem; }
.bien-specs .ico { width: 14px; color: var(--navy-2); }
.bien-foot { margin-top: auto; display: flex; align-items: center; justify-content: space-between; gap: 10px; padding-top: 14px; border-top: 1px solid var(--line); }
.bien-price { margin: 0; font: 600 1.45rem "Cormorant", serif; color: var(--navy); }

.split2 { display: grid; grid-template-columns: 1.1fr .9fr; gap: clamp(30px, 5vw, 70px); align-items: center; }
.steps { list-style: none; padding: 0; margin: 22px 0 0; display: grid; gap: 16px; }
.steps li { display: flex; gap: 16px; align-items: flex-start; }
.steps li > span { flex: none; display: grid; place-items: center; width: 42px; height: 42px; border-radius: 50%; border: 2px solid var(--copper); color: var(--copper-d); font: 600 1.3rem "Cormorant", serif; }
.steps h3 { font-size: 1.3rem; margin: 0 0 2px; }
.steps p { margin: 0; }
.promise { padding: clamp(26px, 4vw, 38px); border-radius: 16px; background: var(--navy); color: #d7e1ea; }
.promise-big { font: 600 1.7rem/1.2 "Cormorant", serif; color: #fff; margin: 0 0 16px; }
.tick { list-style: none; padding: 0; margin: 0 0 22px; display: grid; gap: 10px; }
.tick li { display: flex; gap: 10px; align-items: center; }
.tick .ico { color: #e3a57c; }
.ft-h { font: 700 .76rem "Instrument", sans-serif; letter-spacing: .14em; text-transform: uppercase; color: #e3a57c; margin: 0 0 10px; }

.band { background: var(--navy-2); color: #fff; padding: clamp(50px, 7vw, 80px) 0; }
.band-in { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 24px; }
.band h2 { margin-bottom: 6px; }
.band p { margin: 0; color: #cfdbe5; }
.cta { display: flex; flex-wrap: wrap; gap: 12px; }

.page-hero { padding: clamp(50px, 7vw, 80px) 0 clamp(30px, 4vw, 44px); }
.filters { display: flex; flex-wrap: wrap; align-items: flex-end; gap: 16px 24px; padding: 18px 22px; margin-bottom: 26px; background: #fff; border: 1px solid var(--line); border-radius: 14px; }
.seg-f { display: flex; flex-wrap: wrap; gap: 6px; border: 0; padding: 0; margin: 0 0 16px; min-width: 0; }
.filters .seg-f { margin: 0; }
.seg-f legend { width: 100%; font-weight: 600; font-size: .9rem; margin-bottom: 6px; padding: 0; }
.seg-f label { position: relative; }
.seg-f input { position: absolute; opacity: 0; }
.seg-f span { display: inline-flex; align-items: center; min-height: 42px; padding: 0 16px; border: 2px solid var(--line); border-radius: 999px; font-weight: 600; font-size: .9rem; cursor: pointer; background: #fff; }
.seg-f input:checked + span { background: var(--navy); border-color: var(--navy); color: #fff; }
.seg-f input:focus-visible + span { outline: 3px solid var(--copper); outline-offset: 2px; }
.fl { display: block; margin-bottom: 16px; }
.filters .fl { margin: 0; }
.fl > span { display: flex; justify-content: space-between; gap: 10px; font-weight: 600; font-size: .9rem; margin-bottom: 6px; }
.fl input:not([type=radio]):not([type=checkbox]):not([type=range]), .fl select, .fl textarea { width: 100%; min-height: 50px; padding: 12px 14px; border: 2px solid var(--line); border-radius: 8px; background: #fff; font: inherit; color: var(--ink); }
.fl input:focus, .fl select:focus, .fl textarea:focus { border-color: var(--navy-2); outline: 0; }
.fl input[type=range] { width: 100%; accent-color: var(--copper); }
.fl output { color: var(--navy); font-weight: 700; }
.filters .range { flex: 1; min-width: 220px; }
.count { margin: 0 0 8px auto; }
.empty { padding: 26px; text-align: center; background: #fff; border: 1px dashed var(--line); border-radius: 14px; margin-top: 10px; }

.est { display: grid; grid-template-columns: .9fr 1.1fr; gap: 28px; align-items: start; }
.est-box, .form { background: #fff; border: 1px solid var(--line); border-radius: 16px; padding: clamp(22px, 4vw, 32px); }
.est-box { position: sticky; top: 100px; background: var(--sand); border-color: #e8dccb; }
.est-res { display: grid; gap: 2px; padding: 18px 20px; border-radius: 12px; background: var(--navy); color: #fff; margin-bottom: 16px; }
.est-res span { font-size: .76rem; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; color: #e3a57c; }
.est-res strong { font: 600 1.9rem "Cormorant", serif; }
.est-res small { color: #b9c8d5; font-size: .78rem; line-height: 1.4; }
.two { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.pre-bien { display: flex; gap: 12px; align-items: center; padding: 14px 16px; border-radius: 10px; background: var(--tint); margin-bottom: 18px; }
.pre-bien .ico { color: var(--copper-d); width: 22px; height: 22px; }
.pre-bien strong { display: block; font: 600 1.2rem "Cormorant", serif; }
.pre-bien span { font-size: .86rem; color: var(--muted); }
.est-recap { margin: -6px 0 16px; padding: 10px 14px; border-left: 3px solid var(--copper); background: var(--sand); font-size: .9rem; }
.mk-consent a { color: var(--navy-2); }

.ft { background: #0f2336; color: #a9bccb; padding: 56px 0 24px; font-size: .94rem; }
.ft-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 30px; }
.ft-logo { font: 600 1.9rem "Cormorant", serif; color: #fff; margin: 0 0 10px; }
.ft a { color: #fff; text-decoration: none; }
.ft-bottom { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 10px; margin-top: 36px; padding-top: 20px; border-top: 1px solid rgba(255, 255, 255, .12); font-size: .85rem; }
.ft-bottom p { margin: 0; }
.mk-credit { margin-left: 14px; }
.mk-legal a { color: var(--navy-2); }

@media (max-width: 1000px) {
  .hero-in, .split2, .est { grid-template-columns: 1fr; }
  .svc, .biens { grid-template-columns: 1fr 1fr; }
  .est-box { position: static; }
  .ft-grid { grid-template-columns: 1fr 1fr; }
  .ft-grid > div:first-child { grid-column: 1 / -1; }
  .burger { display: grid; place-content: center; gap: 6px; width: 46px; height: 46px; border: 0; border-radius: 8px; background: var(--navy); cursor: pointer; }
  .burger span { width: 20px; height: 2px; background: #fff; transition: transform .25s; }
  .mk-nav-open .burger span:first-child { transform: translateY(4px) rotate(45deg); }
  .mk-nav-open .burger span:last-child { transform: translateY(-4px) rotate(-45deg); }
  .nav { position: absolute; top: 100%; left: 0; right: 0; flex-direction: column; align-items: stretch; gap: 0; padding: 8px 20px 22px; background: var(--bg); border-bottom: 1px solid var(--line); opacity: 0; visibility: hidden; transform: translateY(-10px); transition: .25s; }
  .mk-nav-open .nav { opacity: 1; visibility: visible; transform: none; }
  .nav a:not(.btn) { padding: 14px 0; border-bottom: 1px solid var(--line); }
  .nav .btn { margin-top: 14px; }
}
@media (max-width: 620px) {
  body { font-size: 16px; }
  .wrap { width: calc(100% - 32px); }
  .svc, .biens, .two, .ft-grid { grid-template-columns: 1fr; }
  .hero-search { grid-template-columns: 1fr; }
  .cta .btn { flex: 1 1 100%; }
  .head.split { flex-direction: column; align-items: flex-start; }
  .filters .fl { flex: 1 1 140px; }
  .count { margin: 0; }
  .logo small { display: none; }
  .hero-art { border-radius: 90px 14px 14px 14px; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }