/* LỤA VIỆT — phong cách Studio Qiling: sang trọng, nhẹ nhàng, thủ công */
@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:ital,wght@0,400;0,500;0,600;0,700;1,400;1,500&family=Be+Vietnam+Pro:wght@300;400;500;600;700&display=swap');

:root{
  --cream:#faf7f1; --beige:#f2ebe0; --sand:#e9dccb;
  --ink:#2c2620; --muted:#8a7f72; --line:#e5d9c7;
  --gold:#a5762f; --gold-dark:#8a5f22; --rose:#c08552; --sage:#6f7f5e;
  --green:#2e6b4f; --red:#b3402e;
  --radius:14px; --shadow:0 18px 50px rgba(60,45,25,.12);
  --font-serif:'Playfair Display',serif; --font-sans:'Be Vietnam Pro',system-ui,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font-sans);background:var(--cream);color:var(--ink);line-height:1.6;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer}
.container{max-width:1240px;margin:0 auto;padding:0 24px}
.serif{font-family:var(--font-serif)}

/* Announcement */
.announce{background:#221c14;color:#f5eedd;font-size:12.5px;letter-spacing:.04em;text-align:center;padding:9px 16px}
.announce b{color:#e8c87e}

/* Header */
header.site{position:sticky;top:0;z-index:60;background:rgba(250,247,241,.94);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.header-inner{display:flex;align-items:center;gap:28px;padding:14px 0}
.logo{display:flex;align-items:center;gap:10px;font-family:var(--font-serif);font-size:26px;letter-spacing:.12em;font-weight:700}
.logo-mark{width:38px;height:38px;border-radius:50%;background:radial-gradient(circle at 30% 30%,#e8c87e,#a5762f 70%);display:grid;place-items:center;color:#fff;font-size:20px}
.logo small{display:block;font-family:var(--font-sans);font-size:10px;letter-spacing:.34em;color:var(--muted);font-weight:500}
nav.main{display:flex;gap:26px;margin-left:8px;flex:1}
.nav-item{position:relative;padding:10px 0;font-size:14px;font-weight:500;letter-spacing:.02em}
.nav-item::after{content:"";position:absolute;left:0;bottom:4px;height:1.5px;width:0;background:var(--gold);transition:.25s}
.nav-item:hover::after{width:100%}
.dropdown{position:absolute;top:100%;left:-16px;min-width:260px;background:#fff;border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow);padding:10px;display:none}
.nav-item:hover .dropdown{display:block}
.dropdown a{display:block;padding:9px 12px;border-radius:8px;font-size:13.5px}
.dropdown a:hover{background:var(--beige)}
.dropdown a span{color:var(--muted);font-size:12px;display:block}
.header-icons{display:flex;align-items:center;gap:6px}
.icon-btn{width:40px;height:40px;border-radius:50%;border:1px solid transparent;background:transparent;display:grid;place-items:center;font-size:19px;position:relative;transition:.2s}
.icon-btn:hover{background:var(--beige);border-color:var(--line)}
.cart-count{position:absolute;top:2px;right:2px;min-width:19px;height:19px;border-radius:10px;background:var(--gold);color:#fff;font-size:11px;font-weight:700;display:grid;place-items:center;padding:0 5px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:999px;padding:13px 30px;font-size:14px;font-weight:600;letter-spacing:.02em;border:1px solid var(--ink);background:var(--ink);color:#fff;transition:.22s}
.btn:hover{transform:translateY(-1px);box-shadow:var(--shadow)}
.btn.light{background:transparent;color:var(--ink)}
.btn.gold{background:var(--gold);border-color:var(--gold)}
.btn.gold:hover{background:var(--gold-dark)}
.btn.block{width:100%}
.search-bar{display:none;border-top:1px solid var(--line);padding:12px 0}
.search-bar.open{display:block}
.search-bar input{width:100%;padding:13px 18px;border-radius:999px;border:1px solid var(--line);background:#fff;font-size:14px;outline:none}
.search-bar input:focus{border-color:var(--gold)}

/* Hero */
.hero{position:relative;border-radius:22px;overflow:hidden;margin:22px 0 8px;min-height:560px;display:flex;align-items:flex-end;background:#1d1710;color:#fff}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;filter:saturate(1.05)}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(20,14,8,0) 30%,rgba(20,14,8,.62) 100%)}
.hero-content{position:relative;z-index:2;padding:56px;max-width:640px}
.eyebrow{font-size:12px;letter-spacing:.28em;text-transform:uppercase;color:#e8c87e;margin-bottom:12px;font-weight:600}
.hero h1{font-family:var(--font-serif);font-size:clamp(38px,5vw,62px);line-height:1.05;font-weight:600;margin-bottom:14px}
.hero p{color:#f0e6d4;font-size:16px;margin-bottom:24px;max-width:480px}
.hero .btn{background:#fff;color:var(--ink);border-color:#fff}

/* Section */
.section{padding:64px 0 8px}
.section-head{text-align:center;max-width:720px;margin:0 auto 34px}
.section-head h2{font-family:var(--font-serif);font-size:clamp(28px,3.4vw,42px);font-style:italic;font-weight:500;margin-bottom:10px}
.section-head p{color:var(--muted);font-size:15px}
.section-head .btn{margin-top:18px}

/* Product grid */
.grid-products{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:.25s;position:relative}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.card-media{position:relative;aspect-ratio:4/5;overflow:hidden;background:var(--beige)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:.6s}
.card-media img.img2{position:absolute;inset:0;opacity:0}
.card:hover .img2{opacity:1}
.card:hover .img1{opacity:0}
.badge{position:absolute;top:12px;left:12px;z-index:3;font-size:11px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;background:#221c14;color:#f5eedd;padding:6px 11px;border-radius:999px}
.badge.sale{background:var(--red);color:#fff}
.badge.new{background:var(--green);color:#fff}
.quick-add{position:absolute;left:12px;right:12px;bottom:12px;z-index:3;background:rgba(255,255,255,.96);border:none;border-radius:999px;padding:11px;font-size:13px;font-weight:600;opacity:0;transform:translateY(8px);transition:.25s}
.card:hover .quick-add{opacity:1;transform:none}
.quick-add:hover{background:var(--ink);color:#fff}
.card-body{padding:14px 15px 16px;text-align:center}
.card-body h3{font-size:13.5px;font-weight:500;line-height:1.45;min-height:40px}
.card-body h3:hover{color:var(--gold)}
.price{margin-top:6px;font-size:14px;font-weight:700}
.price s{color:var(--muted);font-weight:400;margin-right:8px}
.price .sale{color:var(--red)}
.stars{color:#d9a441;font-size:12px;letter-spacing:2px;margin-top:4px}

/* Story / banners */
.split{display:grid;grid-template-columns:1fr 1fr;gap:0;border-radius:22px;overflow:hidden;background:#fff;border:1px solid var(--line);margin-top:26px}
.split-media{min-height:420px;background-size:cover;background-position:center}
.split-body{padding:64px 56px;display:flex;flex-direction:column;justify-content:center}
.split-body h2{font-family:var(--font-serif);font-size:36px;line-height:1.15;margin:10px 0 14px}
.split-body p{color:#5d5347;margin-bottom:22px}
.banner-full{border-radius:22px;overflow:hidden;position:relative;min-height:380px;display:flex;align-items:center;background-size:cover;background-position:center;color:#fff;margin-top:26px}
.banner-full::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(20,14,8,.62),rgba(20,14,8,.15))}
.banner-full>div{position:relative;z-index:2;padding:56px;max-width:560px}
.banner-full h2{font-family:var(--font-serif);font-size:38px;margin:10px 0 12px}
.trio{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:26px}
.trio-item{border-radius:18px;overflow:hidden;position:relative;min-height:340px;background-size:cover;background-position:center;display:flex;align-items:flex-end;color:#fff}
.trio-item::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 40%,rgba(0,0,0,.6))}
.trio-item div{position:relative;z-index:2;padding:24px}
.trio-item h3{font-family:var(--font-serif);font-size:22px}

/* Newsletter */
.newsletter{background:#221c14;color:#f2e9d6;border-radius:22px;padding:56px;text-align:center;margin:56px 0 30px}
.newsletter h2{font-family:var(--font-serif);font-style:italic;font-size:34px;margin-bottom:10px}
.newsletter p{color:#cbbfa7;font-size:14px;margin-bottom:22px}
.news-form{display:flex;gap:10px;max-width:460px;margin:0 auto}
.news-form input{flex:1;border-radius:999px;border:1px solid #4a4136;background:#2e261c;color:#fff;padding:13px 18px;outline:none}
.news-form button{border-radius:999px;border:none;background:var(--gold);color:#fff;padding:13px 26px;font-weight:600}
.press{display:flex;justify-content:center;gap:34px;flex-wrap:wrap;color:var(--muted);font-family:var(--font-serif);letter-spacing:.14em;font-size:15px;padding:18px 0 8px;opacity:.8}

/* Footer */
footer.site{background:#fff;border-top:1px solid var(--line);margin-top:30px}
.footer-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr 1fr;gap:30px;padding:48px 0 28px}
.footer-grid h4{font-size:13px;letter-spacing:.14em;text-transform:uppercase;margin-bottom:14px}
.footer-grid a{display:block;font-size:14px;color:#5d5347;padding:4px 0}
.footer-grid a:hover{color:var(--gold)}
.socials{display:flex;gap:10px;margin-top:14px}
.socials a{width:36px;height:36px;border-radius:50%;border:1px solid var(--line);display:grid;place-items:center;font-size:16px}
.footer-bottom{border-top:1px solid var(--line);padding:16px 0;display:flex;justify-content:space-between;gap:12px;font-size:12.5px;color:var(--muted);flex-wrap:wrap}

/* Cart drawer */
.overlay{position:fixed;inset:0;background:rgba(30,22,14,.45);opacity:0;pointer-events:none;transition:.25s;z-index:90}
.overlay.show{opacity:1;pointer-events:auto}
.drawer{position:fixed;top:0;right:0;bottom:0;width:min(420px,94vw);background:#fff;z-index:95;transform:translateX(105%);transition:.3s;display:flex;flex-direction:column;border-left:1px solid var(--line)}
.drawer.open{transform:none}
.drawer-head{padding:18px 20px;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;align-items:center}
.drawer-head h3{font-family:var(--font-serif);font-size:20px}
.drawer-items{flex:1;overflow:auto;padding:16px 20px;display:flex;flex-direction:column;gap:14px}
.cart-item{display:grid;grid-template-columns:76px 1fr auto;gap:12px;border:1px solid var(--line);border-radius:12px;padding:10px;background:var(--cream)}
.cart-item img{width:76px;height:92px;object-fit:cover;border-radius:8px}
.cart-item h4{font-size:13px;font-weight:600;line-height:1.4}
.cart-item .meta{font-size:12px;color:var(--muted)}
.qty{display:inline-flex;align-items:center;border:1px solid var(--line);border-radius:999px;overflow:hidden;margin-top:8px;background:#fff}
.qty button{width:28px;height:28px;border:none;background:transparent;font-size:15px}
.qty span{min-width:30px;text-align:center;font-size:13px;font-weight:600}
.drawer-foot{border-top:1px solid var(--line);padding:18px 20px}
.total-row{display:flex;justify-content:space-between;font-weight:700;margin-bottom:12px}

/* Shop */
.shop-layout{display:grid;grid-template-columns:250px 1fr;gap:28px;padding:26px 0 60px}
.filters{background:#fff;border:1px solid var(--line);border-radius:14px;padding:20px;height:fit-content;position:sticky;top:120px}
.filters h4{font-size:12px;letter-spacing:.14em;text-transform:uppercase;margin:16px 0 10px;color:var(--muted)}
.filters h4:first-child{margin-top:0}
.filters label{display:flex;align-items:center;gap:9px;font-size:14px;padding:5px 0;cursor:pointer}
.toolbar{display:flex;gap:12px;align-items:center;justify-content:space-between;margin-bottom:18px;flex-wrap:wrap}
.toolbar select,.toolbar input{border:1px solid var(--line);border-radius:999px;padding:10px 16px;font-size:13.5px;background:#fff;outline:none}
.page-hero{background:var(--beige);border-bottom:1px solid var(--line);padding:44px 0;text-align:center}
.page-hero h1{font-family:var(--font-serif);font-size:42px;margin-bottom:8px}
.page-hero p{color:var(--muted)}

/* Product detail */
.pd{display:grid;grid-template-columns:1.05fr 1fr;gap:44px;padding:30px 0 60px}
.pd-gallery{display:grid;grid-template-columns:86px 1fr;gap:14px}
.thumbs{display:flex;flex-direction:column;gap:10px}
.thumbs img{width:86px;height:104px;object-fit:cover;border-radius:10px;border:2px solid transparent;cursor:pointer}
.thumbs img.active{border-color:var(--gold)}
.main-img{border-radius:18px;overflow:hidden;border:1px solid var(--line);background:#fff}
.main-img img{width:100%;height:100%;max-height:640px;object-fit:cover}
.pd-info h1{font-family:var(--font-serif);font-size:34px;line-height:1.2;margin:8px 0 10px}
.pd-price{font-size:22px;font-weight:700;margin:10px 0}
.pd-price s{color:var(--muted);font-weight:400;font-size:17px;margin-right:10px}
.pd-desc{color:#5d5347;font-size:14.5px;margin:14px 0}
.opt-label{font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin:18px 0 8px;font-weight:600}
.swatches{display:flex;gap:10px;flex-wrap:wrap}
.swatch{border:1.5px solid var(--line);background:#fff;border-radius:999px;padding:9px 18px;font-size:13px;font-weight:500}
.swatch.active{border-color:var(--ink);background:var(--ink);color:#fff}
.buy-row{display:flex;gap:12px;margin-top:22px}
.buy-row .qty{margin:0;padding:4px}
.buy-row .qty button{width:38px;height:42px}
.acc{border-top:1px solid var(--line);margin-top:24px}
.acc details{border-bottom:1px solid var(--line);padding:14px 0;font-size:14px}
.acc summary{cursor:pointer;font-weight:600}
.trust{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:20px}
.trust div{background:#fff;border:1px solid var(--line);border-radius:12px;padding:12px;text-align:center;font-size:12.5px}

/* Forms / checkout */
.form-grid{display:grid;grid-template-columns:1.4fr 1fr;gap:28px;padding:28px 0 60px}
.panel{background:#fff;border:1px solid var(--line);border-radius:16px;padding:26px}
.panel h3{font-family:var(--font-serif);font-size:22px;margin-bottom:14px}
.field{margin-bottom:14px}
.field label{display:block;font-size:13px;font-weight:600;margin-bottom:6px}
.field input,.field select,.field textarea{width:100%;border:1px solid var(--line);border-radius:10px;padding:12px 14px;font-size:14px;font-family:inherit;outline:none;background:var(--cream)}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--gold);background:#fff}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.pay-methods{display:flex;flex-direction:column;gap:10px}
.pay-option{border:1.5px solid var(--line);border-radius:12px;padding:13px 15px;display:flex;gap:12px;align-items:flex-start;cursor:pointer}
.pay-option.active{border-color:var(--gold);background:#fffaf0}
.order-line{display:flex;gap:12px;margin-bottom:14px;align-items:center}
.order-line img{width:58px;height:70px;object-fit:cover;border-radius:8px}
.success{text-align:center;padding:70px 20px}
.success-check{width:84px;height:84px;border-radius:50%;background:#e6f3ec;color:var(--green);font-size:40px;display:grid;place-items:center;margin:0 auto 18px}

/* Admin */
.admin-wrap{display:grid;grid-template-columns:230px 1fr;gap:0;min-height:80vh;background:#fff;border:1px solid var(--line);border-radius:18px;overflow:hidden;margin:24px 0 60px}
.admin-side{background:#221c14;color:#e9ddc4;padding:24px 16px}
.admin-side a{display:block;padding:11px 14px;border-radius:10px;font-size:14px;margin-bottom:4px}
.admin-side a.active,.admin-side a:hover{background:#3a3023;color:#fff}
.admin-main{padding:28px;background:var(--cream)}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin:18px 0 24px}
.stat{background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px}
.stat b{font-size:24px;display:block}
.stat span{font-size:12.5px;color:var(--muted)}
table.tbl{width:100%;border-collapse:collapse;background:#fff;border-radius:14px;overflow:hidden;font-size:13.5px}
.tbl th,.tbl td{padding:11px 12px;border-bottom:1px solid var(--line);text-align:left;vertical-align:middle}
.tbl th{background:#f5eee1;font-size:12px;letter-spacing:.06em;text-transform:uppercase}
.tbl img{width:46px;height:56px;object-fit:cover;border-radius:8px}
.pill{font-size:11.5px;font-weight:700;padding:4px 11px;border-radius:999px;background:#eee}
.pill.pending{background:#fdf0d5;color:#8a5f22}.pill.confirmed{background:#dbeafe;color:#1d4ed8}.pill.shipping{background:#e0e7ff;color:#4338ca}.pill.done{background:#dcfce7;color:#15803d}.pill.cancel{background:#fee2e2;color:#b91c1c}
.modal{position:fixed;inset:0;z-index:120;display:none;place-items:center;background:rgba(0,0,0,.45);padding:18px}
.modal.open{display:grid}
.modal-box{background:#fff;border-radius:18px;max-width:640px;width:100%;padding:28px;max-height:92vh;overflow:auto}
.icon-actions{display:flex;gap:6px}
.icon-actions button{border:1px solid var(--line);background:#fff;border-radius:8px;padding:7px 10px;font-size:14px}
.login-box{max-width:400px;margin:60px auto;background:#fff;border:1px solid var(--line);border-radius:18px;padding:34px}

/* Toast */
#toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%) translateY(20px);background:#221c14;color:#fff;padding:13px 22px;border-radius:999px;font-size:14px;opacity:0;transition:.3s;z-index:200;box-shadow:var(--shadow)}
#toast.show{opacity:1;transform:translateX(-50%)}

/* Reveal */
.reveal{opacity:0;transform:translateY(24px);transition:.7s}
.reveal.in{opacity:1;transform:none}

/* Video hướng dẫn thắt khăn */
.video-card{border-radius:18px;overflow:hidden;position:relative;min-height:380px;display:flex;align-items:flex-end;color:#fff;cursor:pointer;border:none;width:100%;text-align:left;font-family:inherit;padding:0;background:#111;transition:.25s}
.video-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.video-thumb{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.video-card::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(0,0,0,.05) 40%,rgba(0,0,0,.68))}
.video-cap{position:relative;z-index:2;padding:22px}
.video-cap h3{font-family:var(--font-serif);font-size:21px;margin-bottom:2px}
.video-cap p{font-size:13px;color:#f0e6d4}
.play-btn{position:absolute;z-index:2;top:50%;left:50%;transform:translate(-50%,-60%);width:68px;height:68px;border-radius:50%;background:rgba(255,255,255,.95);color:var(--red);font-size:22px;display:grid;place-items:center;padding-left:4px;transition:.25s;box-shadow:0 10px 30px rgba(0,0,0,.35)}
.video-card:hover .play-btn{background:var(--red);color:#fff;transform:translate(-50%,-60%) scale(1.08)}
.video-tag{position:absolute;z-index:2;top:12px;right:12px;font-size:11px;font-weight:700;background:rgba(20,14,8,.72);padding:5px 11px;border-radius:999px;letter-spacing:.04em}
.video-box{max-width:860px}
.video-frame{position:relative;padding-top:56.25%;border-radius:12px;overflow:hidden;background:#000}
.video-frame iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
@media(max-width:1020px){
  .grid-products{grid-template-columns:repeat(3,1fr)}
  nav.main{display:none}
  .shop-layout,.form-grid,.pd{grid-template-columns:1fr}
  .pd-gallery{grid-template-columns:1fr}.thumbs{flex-direction:row}.thumbs img{width:70px;height:84px}
  .split{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr}
  .admin-wrap{grid-template-columns:1fr}.admin-side{display:flex;overflow:auto}
  .stat-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:640px){
  .grid-products{grid-template-columns:repeat(2,1fr)}
  .hero-content,.banner-full>div,.split-body{padding:30px 24px}
  .trio{grid-template-columns:1fr}
  .news-form{flex-direction:column}
  .field-row{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .buy-row{flex-direction:column}
}