:root{
  --ink:#171717; --paper:#fbfaf7; --cream:#f1ece4; --line:#e4ddd2;
  --muted:#77736d; --accent:#9b7953; --white:#fff;
  --ease:cubic-bezier(.22,1,.36,1);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:84px}
body{font-family:Arial,Helvetica,sans-serif;background:var(--paper);color:var(--ink);line-height:1.6;overflow-x:hidden}
a{text-decoration:none;color:inherit}
img{display:block;width:100%}
.container{width:min(1180px,92%);margin:auto}
.section{padding:100px 0}
h1,h2,h3{font-family:Georgia,"Times New Roman",serif;font-weight:600}

.header{position:fixed;inset:0 0 auto 0;z-index:1000;background:rgba(251,250,247,.86);backdrop-filter:blur(16px);border-bottom:1px solid rgba(0,0,0,.06)}
.nav{min-height:78px;display:flex;align-items:center;justify-content:space-between;gap:28px}
.logo{font-size:26px;font-weight:700;letter-spacing:-1px}
.logo small{display:block;font-size:9px;letter-spacing:3px;font-weight:700;color:var(--accent);margin-top:-3px}
.desktop-nav{display:flex;gap:28px}
.desktop-nav a{font-size:14px;color:#5d5954;position:relative}
.desktop-nav a:after{content:"";position:absolute;left:0;bottom:-6px;width:0;height:1px;background:var(--ink);transition:.3s var(--ease)}
.desktop-nav a:hover:after{width:100%}
.btn-dark,.btn-light,.btn-outline{display:inline-flex;align-items:center;justify-content:center;border-radius:999px;padding:13px 21px;font-weight:700;font-size:14px;transition:.35s var(--ease)}
.btn-dark{background:var(--ink);color:var(--white)}
.btn-dark:hover{transform:translateY(-3px);box-shadow:0 12px 26px rgba(0,0,0,.16)}
.btn-light{background:var(--white);color:var(--ink)}
.btn-light:hover{transform:translateY(-3px);box-shadow:0 12px 28px rgba(0,0,0,.18)}
.btn-outline{color:var(--white);border:1px solid rgba(255,255,255,.45);background:rgba(255,255,255,.06);backdrop-filter:blur(8px)}
.btn-outline:hover{background:var(--white);color:var(--ink);transform:translateY(-3px)}

.hero{min-height:94vh;display:flex;align-items:flex-end;position:relative;overflow:hidden;background-image:linear-gradient(180deg,rgba(0,0,0,.05) 20%,rgba(0,0,0,.74) 100%),url("images/hero.jpg");background-size:cover;background-position:center}
.hero:before{content:"";position:absolute;inset:-3%;background:inherit;z-index:0;animation:heroZoom 10s ease-out both}
.hero-content{position:relative;z-index:2;color:var(--white);padding:150px 0 90px;max-width:820px}
.pill{display:inline-block;border:1px solid rgba(255,255,255,.35);background:rgba(255,255,255,.08);backdrop-filter:blur(8px);padding:8px 13px;border-radius:999px;font-size:10px;letter-spacing:3px;font-weight:700;margin-bottom:22px;animation:up .8s .05s both}
.hero h1{font-size:clamp(64px,10vw,126px);line-height:.86;letter-spacing:-5px;margin-bottom:24px;animation:up .8s .15s both}
.hero p{max-width:600px;font-size:19px;color:rgba(255,255,255,.88);animation:up .8s .28s both}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:32px;animation:up .8s .4s both}

.brand{background:var(--cream);position:relative;overflow:hidden}
.brand:after{content:"CHILL";position:absolute;right:-20px;top:15px;font-size:clamp(110px,17vw,240px);font-weight:800;color:rgba(0,0,0,.025);pointer-events:none}
.brand-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.1fr .9fr;gap:90px;align-items:center}
.kicker{font-size:11px;font-weight:800;letter-spacing:3px;color:var(--accent);margin-bottom:15px}
.brand h2,.heading h2,.location h2{font-size:clamp(42px,5.2vw,68px);line-height:1.02;letter-spacing:-2px}
.brand-copy{color:var(--muted);font-size:17px}

.heading{display:flex;align-items:end;justify-content:space-between;gap:40px;margin-bottom:48px}
.heading-copy{max-width:670px}
.heading-note{max-width:360px;color:var(--muted);font-size:15px}

.rooms{background:var(--paper)}
.rooms-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:20px}
.room-card{grid-column:span 2;background:var(--white);border:1px solid var(--line);border-radius:22px;overflow:hidden;transition:transform .55s var(--ease),box-shadow .55s ease}
.room-card:nth-child(4){grid-column:2/span 2}
.room-card:nth-child(5){grid-column:4/span 2}
.room-card:hover{transform:translateY(-8px);box-shadow:0 28px 60px rgba(0,0,0,.10)}
.room-photo{height:330px;position:relative;background:#ded7cc;overflow:hidden}
.room-photo:after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 45%,rgba(0,0,0,.46))}
.room-photo img{height:100%;object-fit:cover;transition:transform .9s var(--ease)}
.room-card:hover .room-photo img{transform:scale(1.07)}
.room-tag{position:absolute;left:20px;bottom:18px;z-index:2;color:var(--white);font-size:10px;letter-spacing:2.5px;font-weight:800}
.room-info{padding:23px}
.room-info h3{font-size:28px;line-height:1.05;margin-bottom:8px}
.room-info p{color:var(--muted);font-size:14px;min-height:48px}
.room-price{font-size:13px;font-weight:700;margin-top:12px;color:var(--accent)}
.room-link{display:inline-block;margin-top:16px;font-size:13px;font-weight:700}
.room-link:hover{transform:translateX(5px);color:var(--accent)}

.prices{background:var(--ink);color:var(--white);position:relative;overflow:hidden}
.prices:before{content:"";position:absolute;width:600px;height:600px;border-radius:50%;right:-280px;top:-300px;background:radial-gradient(circle,rgba(155,121,83,.23),transparent 68%)}
.price-grid{position:relative;z-index:1;display:grid;grid-template-columns:1fr 1fr;gap:20px;max-width:950px;margin:48px auto 0}
.price-card{padding:32px;border:1px solid rgba(255,255,255,.12);border-radius:24px;background:rgba(255,255,255,.04);transition:.4s var(--ease)}
.price-card:hover{transform:translateY(-6px);background:rgba(255,255,255,.07)}
.price-card.featured{background:var(--cream);color:var(--ink);border-color:var(--cream)}
.price-card h3{font-size:29px;margin-bottom:20px}
.price-row{display:flex;justify-content:space-between;padding:16px 0;border-top:1px solid rgba(255,255,255,.11)}
.featured .price-row{border-color:var(--line)}
.price-row span{color:rgba(255,255,255,.65)}
.featured .price-row span{color:var(--muted)}

.amenity-strip{background:var(--cream);padding:36px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.amenities-inline{display:grid;grid-template-columns:repeat(5,1fr);gap:12px}
.amenity{padding:16px;border:1px solid var(--line);background:rgba(255,255,255,.55);border-radius:16px;text-align:center;font-size:13px;transition:.35s var(--ease)}
.amenity:hover{transform:translateY(-4px);background:white}

.location{background:var(--paper)}
.location-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:65px;align-items:center}
.location-copy p{margin-top:18px;color:var(--muted)}
.map{min-height:430px;border-radius:26px;overflow:hidden;box-shadow:0 25px 60px rgba(0,0,0,.08);border:1px solid var(--line)}
.map iframe{width:100%;height:430px;border:0;display:block}
.location-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:26px}

.contact{color:white;background:linear-gradient(90deg,rgba(18,18,18,.93),rgba(18,18,18,.83)),url("images/hero.jpg") center/cover;position:relative;overflow:hidden}
.contact-inner{text-align:center;max-width:820px;margin:auto;position:relative;z-index:1}
.contact h2{font-size:clamp(52px,7vw,92px);line-height:.92;letter-spacing:-4px}
.contact p{max-width:580px;margin:22px auto 30px;color:rgba(255,255,255,.72);font-size:18px}

.footer{background:#101010;color:white;padding:34px 0}
.footer-row{display:flex;justify-content:space-between;gap:25px}
.footer p{color:#8f8c87;font-size:13px;margin-top:4px}
.footer-right{text-align:right}

.floating-zalo{position:fixed;z-index:1200;right:18px;bottom:18px;width:62px;height:62px;border-radius:50%;display:flex;align-items:center;justify-content:center;background:var(--ink);color:white;font-size:12px;font-weight:800;box-shadow:0 12px 30px rgba(0,0,0,.2);animation:pulse 3s ease-in-out infinite}

/* detail pages */
.detail-page{padding-top:110px}
.detail-header{padding:60px 0 35px}
.back{display:inline-block;color:var(--muted);font-size:14px;margin-bottom:25px}
.detail-header h1{font-size:clamp(58px,8vw,96px);line-height:.9;letter-spacing:-4px}
.detail-header p{color:var(--muted);font-size:18px;margin-top:14px}
.gallery{display:grid;grid-template-columns:1.7fr 1fr;gap:14px;height:620px;margin-bottom:80px}
.gallery-main{overflow:hidden;border-radius:26px;background:#ddd6cc}
.gallery-main img,.gallery-side img{height:100%;object-fit:cover;transition:transform .8s var(--ease)}
.gallery-main:hover img,.gallery-side img:hover{transform:scale(1.045)}
.gallery-side{display:grid;grid-template-rows:1fr 1fr;gap:14px}
.gallery-side img{border-radius:22px}
.detail-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:75px;align-items:start}
.detail-copy h2{font-size:clamp(40px,5vw,64px);line-height:1.04;margin-bottom:22px}
.detail-copy>p{color:var(--muted);font-size:17px}
.detail-copy h3{font-size:27px;margin-top:40px}
.feature-list{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:18px}
.feature-list div{background:var(--cream);border:1px solid var(--line);border-radius:14px;padding:15px}
.detail-price{position:sticky;top:100px;background:var(--ink);color:white;border-radius:24px;padding:30px;box-shadow:0 22px 55px rgba(0,0,0,.12)}
.detail-price h3{font-size:29px;margin-bottom:20px}
.detail-price .kicker{color:#c4a47e}
.detail-price .row{display:flex;justify-content:space-between;padding:12px 0;border-bottom:1px solid rgba(255,255,255,.11)}
.detail-price .row span{color:rgba(255,255,255,.64)}
.detail-price hr{border:0;border-top:1px solid rgba(255,255,255,.11);margin:22px 0}
.detail-zalo{display:block;margin-top:22px;padding:14px;border-radius:999px;text-align:center;background:white;color:var(--ink);font-weight:700}

@keyframes up{from{opacity:0;transform:translateY(26px)}to{opacity:1;transform:translateY(0)}}
@keyframes heroZoom{from{transform:scale(1.06)}to{transform:scale(1)}}
@keyframes pulse{0%,100%{box-shadow:0 12px 30px rgba(0,0,0,.2),0 0 0 0 rgba(23,23,23,.18)}50%{box-shadow:0 12px 30px rgba(0,0,0,.2),0 0 0 11px rgba(23,23,23,0)}}

@media(max-width:900px){
  .desktop-nav{display:none}
  .rooms-grid{grid-template-columns:1fr 1fr}
  .room-card,.room-card:nth-child(4),.room-card:nth-child(5){grid-column:span 1}
  .brand-grid,.location-grid,.detail-grid{grid-template-columns:1fr}
  .price-grid{grid-template-columns:1fr}
  .amenities-inline{grid-template-columns:repeat(3,1fr)}
  .detail-price{position:static}
}
@media(max-width:650px){
  .section{padding:78px 0}
  .nav{min-height:68px}
  .hero{min-height:86vh;background-position:58% center}
  .hero-content{padding:125px 0 65px}
  .hero h1{font-size:64px;letter-spacing:-3px}
  .hero p{font-size:17px}
  .heading{display:block}
  .heading-note{margin-top:14px}
  .rooms-grid,.price-grid,.feature-list{grid-template-columns:1fr}
  .room-photo{height:320px}
  .amenities-inline{grid-template-columns:1fr 1fr}
  .map,.map iframe{min-height:330px;height:330px}
  .gallery{grid-template-columns:1fr;height:auto}
  .gallery-main{height:390px}
  .gallery-side{grid-template-columns:1fr 1fr;grid-template-rows:170px}
  .detail-header h1{font-size:62px;letter-spacing:-3px}
  .footer-row{flex-direction:column}
  .footer-right{text-align:left}
  .floating-zalo{width:58px;height:58px}
}