:root{
  --navy:#082a4a;
  --navy2:#051c33;
  --teal:#0f706e;
  --aqua:#3aa59b;
  --soft:#f3f7f7;
  --text:#243238;
  --muted:#6f7b80;
  --line:#dbe5e5;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:90px}
body{margin:0;font-family:"Noto Sans KR","Apple SD Gothic Neo",sans-serif;color:var(--text);background:#fff;line-height:1.65}
img{display:block;max-width:100%}
a{text-decoration:none;color:inherit}
.wrap{width:min(1180px,calc(100% - 36px));margin:auto}

.header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.97);backdrop-filter:blur(12px);border-bottom:1px solid rgba(8,42,74,.08)}
.head-in{min-height:90px;display:flex;align-items:center;gap:22px}
.logo{margin-right:auto}
.logo img{width:250px;height:60px;object-fit:contain;object-position:left center}
.head-in nav{display:flex;gap:17px;font-size:15px;font-weight:700;color:#465a65}
.head-in nav a:hover{color:var(--teal)}
.phone{display:flex;flex-direction:column;align-items:flex-end;line-height:1.1;background:linear-gradient(135deg,var(--navy),var(--teal));color:#fff;padding:10px 17px;border-radius:14px;white-space:nowrap}
.phone span{font-size:12px;opacity:.76;margin-bottom:4px}
.phone b{font-size:25px}

.hero{min-height:800px;position:relative;display:flex;align-items:center;overflow:hidden}
.hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.hero-shade{position:absolute;inset:0;background:linear-gradient(90deg,rgba(5,28,51,.88),rgba(8,42,74,.58) 45%,rgba(15,112,110,.08) 82%)}
.hero-in{position:relative;z-index:1;display:grid;grid-template-columns:minmax(0,1fr) 370px;gap:48px;align-items:center;padding:95px 0}
.hero-copy{max-width:720px;color:#fff}
.eyebrow,.section-title small{display:inline-block;color:#6fc4b7;font-weight:900;font-size:13px;letter-spacing:.13em;margin-bottom:14px}
.hero-copy h1{font-size:clamp(44px,5vw,70px);line-height:1.08;font-weight:300;margin:0 0 22px}
.hero-copy h1 strong{font-weight:850}
.hero-copy>p{max-width:670px;font-size:18px;color:rgba(255,255,255,.9);margin:0 0 24px}
.chips{display:flex;flex-wrap:wrap;gap:9px;margin-bottom:28px}
.chips span{padding:9px 13px;border-radius:999px;border:1px solid rgba(255,255,255,.23);background:rgba(255,255,255,.10);font-size:13px}
.hero-actions{display:flex;gap:10px;flex-wrap:wrap}
.btn{padding:14px 20px;border-radius:999px;font-weight:800}
.btn.white{background:#fff;color:var(--navy)}
.btn.line{border:1px solid rgba(255,255,255,.45);color:#fff}

.form-box{background:rgba(255,255,255,.97);border-radius:28px;padding:28px;box-shadow:0 20px 50px rgba(0,0,0,.18)}
.form-box small{color:var(--teal);font-weight:900}
.form-box h3{font-size:27px;margin:5px 0;color:var(--navy)}
.form-box p{font-size:14px;color:var(--muted);margin:0 0 16px}
.form-box form{display:grid;gap:11px}
.form-box input:not([type=checkbox]){height:52px;border:1px solid var(--line);border-radius:13px;padding:0 14px;font-size:15px}
.form-box label{font-size:13px;color:#5f6a70;display:flex;gap:7px;align-items:flex-start}
.form-box button{height:54px;border:0;border-radius:14px;background:linear-gradient(135deg,var(--navy),var(--teal));color:#fff;font-size:16px;font-weight:800;cursor:pointer}

.section{padding:106px 0}
.soft{background:var(--soft)}
.section-title{max-width:830px;margin-bottom:30px}
.section-title h2{font-size:clamp(34px,4vw,50px);line-height:1.18;margin:0 0 13px;color:var(--navy)}
.section-title p{margin:0;color:var(--muted);font-size:16px}

.project-layout{display:grid;grid-template-columns:.78fr 1.22fr;gap:46px;align-items:center}
.project-img img{width:100%;min-height:470px;object-fit:cover;border-radius:26px;box-shadow:0 20px 50px rgba(8,42,74,.14)}
.specs{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--line);border:1px solid var(--line);border-radius:18px;overflow:hidden;margin-top:30px}
.specs>div{background:#fff;padding:18px}
.specs dt{font-size:12px;color:#88989c;margin-bottom:4px}
.specs dd{margin:0;font-weight:800;color:var(--navy)}

.viewer{background:#fff;border:1px solid var(--line);border-radius:24px;padding:16px;box-shadow:0 12px 35px rgba(8,42,74,.07)}
.viewer img{width:100%;border-radius:14px}
.premium-view img{max-width:1100px;margin:auto}

.dark{background:linear-gradient(155deg,#061f39,#0a3c57 65%,#0c5c64)}
.section-title.light h2{color:#fff}
.section-title.light p{color:rgba(255,255,255,.75)}
.dark-view{background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.14);box-shadow:none}

.tabs{display:flex;flex-wrap:wrap;gap:9px;margin-bottom:18px}
.tabs button{border:1px solid #d6e3e3;background:#edf4f4;color:var(--navy);padding:11px 17px;border-radius:13px;font-weight:800;cursor:pointer}
.tabs button.on{background:var(--navy);color:#fff;border-color:var(--navy)}
.dark .dark-tabs button{background:#fff;color:var(--navy);border-color:#fff}
.dark .dark-tabs button.on{background:#6fc4b7;color:#083438;border-color:#6fc4b7}

.group-tabs{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:18px}
.group-tabs button{border:1px solid #cfdddd;background:#fff;color:var(--navy);padding:12px 22px;border-radius:999px;font-weight:900;cursor:pointer}
.group-tabs button.on{background:linear-gradient(135deg,var(--teal),#5ab3a7);border-color:var(--teal);color:#fff}
.dark .group-tabs button{background:rgba(255,255,255,.10);color:#fff;border-color:rgba(255,255,255,.22)}
.dark .group-tabs button.on{background:#6fc4b7;color:#083438;border-color:#6fc4b7}
.group-panel{display:none}
.group-panel.on{display:block}
.single-panel{min-height:1px}

.unit-view img{max-width:860px;margin:auto}
.interior-view{display:flex;justify-content:center}
.zoomable{display:block;width:100%;border:0;background:transparent;padding:0;cursor:zoom-in}
.zoomable img{width:100%;height:auto;object-fit:contain}
.lightbox{position:fixed;inset:0;background:rgba(3,15,25,.90);display:flex;align-items:center;justify-content:center;padding:30px;opacity:0;pointer-events:none;transition:.25s ease;z-index:300}
.lightbox.open{opacity:1;pointer-events:auto}
.lightbox img{max-width:min(1400px,94vw);max-height:90vh;object-fit:contain;border-radius:16px;background:#fff;box-shadow:0 24px 70px rgba(0,0,0,.38)}
.lightbox-close{position:absolute;top:18px;right:22px;width:46px;height:46px;border:0;border-radius:50%;background:#fff;color:#111;font-size:30px;cursor:pointer}

footer{background:#051c33;color:#fff;padding:48px 0 110px}
.footer-in{text-align:center}
.footer-name{font-size:24px;font-weight:850;margin-bottom:8px}
.footer-phone{font-size:34px;font-weight:900;display:inline-block;margin-bottom:16px}
.footer-in p{margin:2px 0;color:rgba(255,255,255,.76);font-size:13px}
.footer-in small{display:block;max-width:840px;margin:17px auto 0;color:rgba(255,255,255,.46);font-size:11px}
.mobile-call{display:none;position:fixed;left:12px;right:12px;bottom:12px;z-index:150;background:linear-gradient(135deg,var(--navy),var(--teal));color:#fff;border-radius:15px;padding:15px;text-align:center;box-shadow:0 10px 30px rgba(0,0,0,.22)}

.reveal{opacity:0;transform:translateY(18px);transition:.65s ease}
.reveal.show{opacity:1;transform:none}

@media(max-width:1120px){
  .head-in nav{font-size:13px;gap:10px}
  .hero-in{grid-template-columns:1fr}
  .form-box{max-width:420px}
  .project-layout{grid-template-columns:1fr}
  .project-img img{min-height:auto}
}
@media(max-width:860px){
  .head-in nav{display:none}
  .phone b{font-size:20px}
  .phone span{display:none}
}
@media(max-width:680px){
  html{scroll-padding-top:74px}
  .wrap{width:min(100% - 24px,1180px)}
  .head-in{min-height:72px}
  .logo img{width:190px;height:46px}
  .phone{padding:9px 12px}
  .hero{min-height:auto}
  .hero-in{padding:80px 0 48px}
  .hero-copy h1{font-size:38px}
  .hero-shade{background:linear-gradient(180deg,rgba(8,42,74,.42),rgba(5,28,51,.92))}
  .section{padding:74px 0}
  .specs{grid-template-columns:1fr}
  .viewer{padding:9px;border-radius:17px}
  .lightbox{padding:16px}
  .lightbox-close{top:12px;right:12px}
  .mobile-call{display:block}
  footer{padding-bottom:95px}
}
@media(max-width:430px){
  .hero-copy h1{font-size:33px}
  .section-title h2{font-size:31px}
}