@media (max-width: 768px) {
  .grid-hero, .stat-grid, .footer-grid, .collection-grid {
    display: flex;
    flex-direction: column;
    gap: 20px;
  }
  
  .hero-title {
    font-size: 28px; /* Giảm size chữ tiêu đề để không bị vỡ dòng quá xấu */
    line-height: 1.2;
  }
}

:root{
  --bg:#f4efe3;
  --paper:#fbf7f0;
  --card:#fffaf2;
  --text:#3d302b;
  --muted:#6f5d53;
  --gold:#b89363;
  --gold-soft:#d6bc93;
  --burgundy:#7b0f12;
  --dark:#352925;
  --line:rgba(184,147,99,.24);
  --shadow:0 20px 60px rgba(46,27,18,.08);
  --radius:28px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:
    radial-gradient(circle at 20% 20%, rgba(160,130,80,0.08), transparent 30%),
    radial-gradient(circle at 80% 10%, rgba(120,60,40,0.05), transparent 22%),
    linear-gradient(rgba(255,255,255,0.24), rgba(255,255,255,0.24)),
    repeating-radial-gradient(circle at 0% 40%, rgba(123,101,72,0.07) 0 2px, transparent 2px 28px);
  background-color:var(--bg);
  color:var(--text);
  font-family:"Be Vietnam Pro",Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Arial,sans-serif;
}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit}
.serif,.brand-big,.hero-title,.section-title,.stat-title,.overlay-title,.collection-content h3,.small-card h4,.cta h2,.gallery-title{font-family:"Noto Serif",Georgia,"Times New Roman",serif}
.container{width:min(1280px,calc(100% - 32px));margin:0 auto}

.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(244,239,227,.88);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:15px 0; position:relative;
}
.brand{display:flex;align-items:center;gap:14px}
.brand-logo{
  width:52px;height:52px;border-radius:12px;overflow:hidden;background:#fff;
  border:1px solid rgba(184,147,99,.25); box-shadow:0 8px 22px rgba(0,0,0,.04);
  display:flex;align-items:center;justify-content:center; flex:0 0 52px;
}
.brand-logo img{width:100%;height:100%;object-fit:cover}
.brand-text{display:flex;flex-direction:column}
.brand-small{font-size:11px;letter-spacing:.45em;text-transform:uppercase;color:#8b6e4a}
.brand-big{font-size:19px;letter-spacing:.16em;color:#362923;line-height:1.2}
.main-nav{display:flex;align-items:center;gap:22px;flex-wrap:wrap}
.main-nav a{font-size:14px;color:#463934;transition:.25s ease}
.main-nav a:hover,.main-nav a.active{color:var(--burgundy)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:12px 24px;border-radius:999px;text-decoration:none;
  font-size:14px;line-height:1;transition:.25s ease;
}
.btn-primary{background:var(--burgundy);color:#fff;box-shadow:0 14px 32px rgba(123,15,18,.22)}
.btn-primary:hover{transform:translateY(-1px); color:#fff}
.btn-outline{border:1px solid rgba(139,110,74,.36);color:var(--text);background:transparent}
.btn-outline:hover{background:rgba(255,255,255,.58)}
.btn-white{background:#fff;color:#7b0f12}
.desktop-cta{display:inline-flex}

.menu-toggle{
  display:none; width:46px; height:46px; border-radius:14px; border:1px solid rgba(184,147,99,.28);
  background:rgba(255,255,255,.65); align-items:center; justify-content:center; flex-direction:column; gap:5px; cursor:pointer;
}
.menu-toggle span{display:block; width:18px; height:2px; background:#3d302b; border-radius:2px}
.mobile-menu{display:none}
.mobile-menu.open{display:block}
.mobile-menu-backdrop{position:fixed; inset:0; background:rgba(0,0,0,.38); z-index:90}
.mobile-menu-panel{
  position:fixed; top:0; right:0; width:min(320px,86vw); height:100vh; background:#f7f1e7;
  z-index:91; box-shadow:-10px 0 40px rgba(0,0,0,.12); padding:18px 18px 28px;
}
.mobile-menu-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}
.mobile-menu-title{font-weight:700;color:#3d302b}
.mobile-menu-close{border:none;background:transparent;font-size:34px;line-height:1;cursor:pointer;color:#3d302b}
.mobile-menu-nav{display:grid;gap:8px}
.mobile-menu-nav a{padding:13px 14px;border-radius:16px;background:rgba(255,255,255,.74);border:1px solid rgba(184,147,99,.16);font-size:15px}
.mobile-menu-nav a.mobile-cta{background:var(--burgundy);color:#fff;margin-top:8px;text-align:center}

.section{padding:63px 0}
.hero-section{padding-top:78px}
.grid-hero{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.chip,.eyebrow{
  display:inline-flex;width:max-content;padding:8px 14px;border-radius:999px;border:1px solid rgba(183,157,122,.4);
  background:rgba(255,255,255,.42);text-transform:uppercase;letter-spacing:.32em;font-size:11px;color:#8b6e4a;
}
.eyebrow{padding:0;border:none;background:transparent;border-radius:0}
.eyebrow-gold{color:#d9bb8f}
.eyebrow-light{color:rgba(255,255,255,.76)}
.hero-title{margin:18px 0 0;font-size:60px;line-height:1.03;color:#3a2a24}
.large-title{font-size:58px}
.lead{margin:24px 0 0;font-size:18px;line-height:1.9;color:#5e4d44;max-width:760px}
.narrow{max-width:900px}
.actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.stat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:42px;padding-top:28px;border-top:1px solid var(--line);max-width:760px}
.stat-title{font-size:30px;color:var(--burgundy)}
.stat-text{margin-top:8px;font-size:14px;line-height:1.7;color:#6b5a50}

.hero-visual-wrap{position:relative}
.hero-block-shadow{position:absolute;left:-24px;top:62px;width:110px;height:300px;border-radius:30px;background:#4b3a36;box-shadow:var(--shadow)}
.hero-frame{
  position:relative;padding:16px;border-radius:34px;border:1px solid rgba(255,255,255,.6);
  background:linear-gradient(135deg,#dbc9ad 0%,#c69d6a 35%,#6e948a 100%);
  box-shadow:0 28px 80px rgba(0,0,0,.10)
}
.hero-art{min-height:660px;border-radius:28px;overflow:hidden;border:1px solid rgba(255,255,255,.55);position:relative;background:#d9c6a2}
.hero-art img{width:100%;height:100%;display:block;object-fit:cover}
.hero-overlay{
  position:absolute;inset:0;display:flex;flex-direction:column;justify-content:space-between;padding:26px;
  background:linear-gradient(180deg,rgba(0,0,0,.15),rgba(0,0,0,.08) 34%,rgba(0,0,0,.34))
}
.overlay-eyebrow{color:rgba(255,255,255,.84)}
.overlay-title{margin-top:10px;color:#fff;font-size:34px}
.overlay-note{
  width:min(370px,100%);padding:16px 18px;border-radius:24px;background:rgba(255,255,255,.12);
  border:1px solid rgba(255,255,255,.22);color:rgba(255,255,255,.92);font-size:14px;line-height:1.8
}

.split{display:grid;grid-template-columns:.96fr 1.04fr;gap:24px}
.card{
  background:rgba(255,255,255,.58);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)
}
.pad-lg{padding:34px}
.card.dark{background:#3d302b;color:#f6efe2}
.card.dark p,.card.dark li{color:rgba(255,255,255,.84)}
.section-head{margin-bottom:28px}
.section-title{margin:12px 0 0;font-size:43px;line-height:1.12;color:#3a2a24}
.light-title{color:#fff}
.light-copy{color:rgba(255,255,255,.85)}
.section-text{margin:18px 0 0;max-width:900px;font-size:16px;line-height:1.95;color:#5e4d44}
.list-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin-top:22px}
.list-item{
  padding:16px 18px;border-radius:18px;background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.10);font-size:14px;line-height:1.7
}

.artist-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:40px;align-items:center}
.artist-page-top{padding-top:90px}
.artist-image{
  padding:16px;border-radius:32px;background:linear-gradient(135deg,#d2a95e 0%,#7b0f12 50%,#2f4f4d 100%);
  border:1px solid var(--line);box-shadow:var(--shadow)
}
.artist-image .inner{min-height:560px;border-radius:24px;overflow:hidden;border:1px solid rgba(255,255,255,.28)}
.artist-image img{width:100%;height:100%;object-fit:cover;display:block}
.triple{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:22px}
.small-card{padding:18px;border-radius:22px;border:1px solid var(--line);background:rgba(255,255,255,.58);box-shadow:var(--shadow)}
.small-card h4{margin:0;font-size:28px;color:var(--burgundy)}
.small-card p{margin:10px 0 0;font-size:14px;line-height:1.8;color:#655349}

.collection-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.collection-card{
  overflow:hidden;border-radius:30px;border:1px solid var(--line);background:rgba(255,255,255,.62);
  box-shadow:0 10px 24px rgba(0,0,0,.04);transition:.25s ease
}
.collection-card:hover{transform:translateY(-4px)}
.click-card{cursor:pointer}
.collection-media{height:290px;overflow:hidden}
.collection-media img{width:100%;height:100%;object-fit:cover;display:block}
.collection-content{padding:24px}
.collection-kicker{font-size:11px;letter-spacing:.28em;text-transform:uppercase;color:#8b6e4a}
.collection-content h3{margin:10px 0 0;font-size:38px;color:#3a2a24}
.collection-content p{margin:14px 0 0;font-size:14px;line-height:1.9;color:#5e4d44}
.link-more{display:inline-block;margin-top:14px;color:var(--burgundy);font-weight:600}

.card-grid{display:grid;gap:20px}
.card-grid.two{grid-template-columns:repeat(2,1fr)}
.project-card{
  overflow:hidden;border-radius:30px;border:1px solid var(--line);background:rgba(255,255,255,.62);box-shadow:var(--shadow)
}
.project-card img{width:100%;height:260px;object-fit:cover;display:block}
.project-content{padding:28px}
.project-card h3{margin:10px 0 0;font-size:34px}
.project-card p{margin:14px 0 0;font-size:15px;line-height:1.9;color:#5e4d44}

.cta{background:var(--burgundy);color:#fff;border-radius:38px;padding:42px;box-shadow:0 20px 60px rgba(123,15,18,.22)}
.cta-grid{display:grid;grid-template-columns:1fr auto;gap:26px;align-items:end}
.cta h2{margin:12px 0 0;font-size:50px;line-height:1.12;color:#fff}
.cta p{margin:16px 0 0;max-width:860px;font-size:16px;line-height:1.9;color:rgba(255,255,255,.86)}

.contact-list{padding-left:18px;line-height:2;color:rgba(255,255,255,.88)}
.contact-form{display:grid;gap:14px;margin-top:24px}
.contact-form input,.contact-form textarea{
  width:100%;border:1px solid #d2c0a1;background:#fff;border-radius:20px;padding:15px 18px;font-size:14px;color:#3d302b
}
.contact-form textarea{min-height:170px;resize:vertical}

.site-footer{margin-top:40px;border-top:1px solid var(--line);background:#efe5d4}
.footer-grid{display:grid;grid-template-columns:1fr auto auto;gap:30px;padding:44px 0}
.footer-brand{display:flex;align-items:center;gap:14px}
.footer-brand img{
  width:56px;height:56px;border-radius:12px;background:#fff;border:1px solid var(--line);object-fit:cover
}
.footer-title{font-size:13px;letter-spacing:.24em;text-transform:uppercase;color:#8b6e4a}
.footer-list{padding:0;margin:14px 0 0;list-style:none}
.footer-list li,.footer-list a,.footer-text{color:#5e4d44;font-size:14px;line-height:1.9}

.floating-buttons{
  position:fixed; right:18px; bottom:24px; display:flex; flex-direction:column; gap:14px; z-index:999;
}
.floating-actions{position:fixed;right:20px;bottom:20px;z-index:90;display:flex;flex-direction:column;gap:12px}
.float-btn{width:56px;height:56px;border-radius:999px;display:flex;align-items:center;justify-content:center;color:#fff;text-decoration:none;box-shadow:0 10px 25px rgba(0,0,0,.18);position:relative}
.float-btn svg{width:26px;height:26px}
.float-phone{background:#7b0f12;animation:shakePhone 1.5s infinite}
.float-zalo{background:#0068ff;font-weight:700;font-size:14px;letter-spacing:.03em}
.float-top{background:#3d302b;opacity:0;visibility:hidden;transform:translateY(12px);transition:.25s ease}
.float-top.show{opacity:1;visibility:visible;transform:translateY(0)}
.float-label{position:absolute;right:68px;white-space:nowrap;background:#fff;color:#332821;padding:8px 12px;border-radius:999px;font-size:12px;box-shadow:0 8px 18px rgba(0,0,0,.10);opacity:0;pointer-events:none;transform:translateX(6px);transition:.25s ease}
.float-btn:hover .float-label{opacity:1;transform:translateX(0)}
@keyframes shakePhone{0%,100%{transform:rotate(0)}10%{transform:rotate(0)}20%{transform:rotate(-12deg)}30%{transform:rotate(12deg)}40%{transform:rotate(-10deg)}50%{transform:rotate(10deg)}60%{transform:rotate(-6deg)}70%{transform:rotate(6deg)}80%{transform:rotate(0)}}

.gallery-popup{display:none;position:fixed;inset:0;z-index:100}
.gallery-popup.active{display:block}
.gallery-overlay{position:absolute;inset:0;background:rgba(0,0,0,.72)}
.gallery-panel{
  position:relative;z-index:2;width:min(1120px,calc(100% - 24px));margin:38px auto;background:#fff;
  border-radius:30px;padding:24px;max-height:calc(100vh - 76px);overflow:auto
}
.gallery-close{position:absolute;right:14px;top:8px;border:none;background:transparent;font-size:34px;cursor:pointer}
.gallery-title{font-size:28px;margin-bottom:18px}
.gallery-content{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.gallery-content img{width:100%;height:340px;object-fit:cover;border-radius:20px;border:1px solid var(--line)}

.reveal{opacity:0;transform:translateY(18px);transition:opacity .7s ease, transform .7s ease}
.reveal.visible{opacity:1;transform:translateY(0)}

@media (max-width:1080px){
  .grid-hero,.split,.artist-grid,.footer-grid,.cta-grid{grid-template-columns:1fr}
  .collection-grid,.stat-grid,.triple,.card-grid.two{grid-template-columns:1fr 1fr}
  .main-nav,.desktop-cta{display:none}
  .menu-toggle{display:flex}
  .header-inner{min-height:76px}
  .hero-title{font-size:58px}
  .section-title{font-size:40px}
  .large-title{font-size:46px}
}
@media (max-width:768px){
  .container{width:min(1280px,calc(100% - 24px))}
  .section{padding:52px 0}
  .hero-title{font-size:38px}
  .section-title{font-size:32px}
  .large-title{font-size:36px}
  .collection-grid,.stat-grid,.triple,.list-grid,.card-grid.two,.gallery-content{grid-template-columns:1fr}
  .hero-art{min-height:420px}
  .artist-image .inner{min-height:400px}
  .collection-media,.project-card img{height:220px}
  .brand{gap:5px}
  .brand-logo{width:48px;height:48px;flex-basis:48px}
  .float-circle{width:54px;height:54px}
  .chip, .eyebrow {padding: 4px 4px;}
  .lead {font-size: 15px;}
  .cta h2 {font-size: 24px;}
  .floating-actions {right: 5px;}
  .float-btn {width: 40px;height: 40px;}
}