:root{--navy:#061426;--navy2:#0a203b;--panel:#0d2949;--gold:#f4c75d;--gold2:#d6a83f;--white:#f8fbff;--muted:#b9c8d8;--line:rgba(255,255,255,.12);--red:#ef3038;--green:#44c27c;--blue:#33a5e8}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--navy);color:var(--white);font-family:Inter,Arial,Helvetica,sans-serif;line-height:1.55}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit}.shell{width:min(1120px,92%);margin:auto}.site-header{position:sticky;top:0;z-index:20;background:rgba(6,20,38,.94);backdrop-filter:blur(16px);border-bottom:1px solid var(--line)}.nav{min-height:76px;display:flex;justify-content:space-between;align-items:center;gap:24px}.brand{display:flex;align-items:center;gap:12px}.site-logo{display:block;width:145px;height:auto;object-fit:contain;flex:0 0 auto}.brand strong{display:block;font-size:.92rem;letter-spacing:.08em}.brand small{display:block;color:var(--muted);font-size:.68rem;letter-spacing:.1em}.wordmark{font-size:1.8rem;font-weight:900;letter-spacing:-.08em;white-space:nowrap}.wordmark i{font-style:normal}.wordmark i:nth-child(1){color:var(--red)}.wordmark i:nth-child(2){color:#33b7dc}.wordmark i:nth-child(3){color:#ffd23f}.wordmark i:nth-child(4){color:#338be3}.nav nav{display:flex;gap:24px;font-size:.94rem}.nav nav a:hover{color:var(--gold)}.hero{padding:72px 0;background:radial-gradient(circle at 78% 20%,rgba(244,199,93,.13),transparent 28%),linear-gradient(145deg,#061426,#0a2748)}.hero-grid{display:grid;grid-template-columns:1fr .92fr;gap:58px;align-items:center}.kicker{color:var(--gold);letter-spacing:.14em;font-size:.78rem;font-weight:800;margin:0 0 12px}.hero h1{font-size:clamp(2.8rem,6vw,5.3rem);line-height:.98;margin:0 0 24px;letter-spacing:-.05em}.hero h1 span{color:var(--gold)}.lead{color:var(--muted);font-size:1.16rem;max-width:620px}.lookup-card,.admin-card,.member-card,.not-found{background:linear-gradient(160deg,#103253,#091d34);border:1px solid rgba(244,199,93,.35);border-radius:24px;padding:30px;box-shadow:0 28px 70px rgba(0,0,0,.28)}.lookup-card h2{font-size:2rem;margin:0 0 22px}.lookup-card label,.admin-card label{display:grid;gap:7px;font-weight:700;margin-bottom:18px}.lookup-row{display:grid;grid-template-columns:1fr auto;gap:10px}.lookup-row input,.admin-card input,.admin-card select,.admin-card textarea,.admin-search input{width:100%;background:#fff;color:#10243a;border:0;border-radius:10px;padding:14px 15px}.lookup-row button,.admin-search button{border:0;background:var(--gold);color:#17202a;font-weight:900;padding:0 22px;border-radius:10px;cursor:pointer}.lookup-card small{display:block;color:var(--muted);margin-top:15px}.section{padding:76px 0}.gold-wash{background:linear-gradient(180deg,rgba(244,199,93,.08),rgba(244,199,93,.025));border-block:1px solid rgba(244,199,93,.18)}.section-title{font-size:clamp(2rem,4vw,3.25rem);line-height:1.08;margin:0 0 30px;letter-spacing:-.035em}.benefit-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.benefit-grid article{background:var(--navy2);border:1px solid var(--line);border-radius:18px;padding:24px}.benefit-grid article>span{color:var(--gold);font-size:.8rem;font-weight:900}.benefit-grid h3{font-size:1.12rem;margin:24px 0 8px}.benefit-grid p,.muted,.policy-note{color:var(--muted)}.policy-note{font-size:.88rem;margin-top:18px}.split{display:grid;grid-template-columns:.8fr 1.2fr;gap:70px}.service-list{display:grid;gap:1px;background:var(--line);border:1px solid var(--line);border-radius:18px;overflow:hidden}.service-list div{display:grid;grid-template-columns:.8fr 1.2fr;gap:20px;background:var(--navy2);padding:22px}.service-list span{color:var(--muted)}.contact-section{padding-top:10px}.contact-card{display:flex;align-items:center;justify-content:space-between;gap:30px;background:linear-gradient(120deg,#0d2c4e,#0b223e);border:1px solid rgba(244,199,93,.28);border-radius:24px;padding:38px}.contact-card h2{font-size:2rem;margin:0}.button{display:inline-flex;align-items:center;justify-content:center;border:0;border-radius:10px;padding:12px 18px;font-weight:850;cursor:pointer}.button.gold{background:linear-gradient(135deg,var(--gold),var(--gold2));color:#171d25}.button.outline{border:1px solid var(--line);background:transparent}.button.ghost{background:rgba(255,255,255,.07);color:#fff}.button.full{width:100%}footer{border-top:1px solid var(--line);padding:32px 0;color:var(--muted);font-size:.9rem}.footer-grid{display:flex;justify-content:space-between;gap:30px}.flash-stack{position:relative;z-index:30}.flash{margin-top:14px;padding:12px 16px;border-radius:10px;background:#164366}.flash.error{background:#6a2430}.flash.success{background:#16543b}.result-page,.admin-page{min-height:70vh;padding:60px 0}.narrow{max-width:820px}.member-card{padding:36px}.member-card.valid{border-color:rgba(68,194,124,.5)}.member-card.invalid{border-color:rgba(239,48,56,.5)}.member-top{display:flex;justify-content:space-between;gap:24px;align-items:flex-start}.member-top h1,.not-found h1,.admin-head h1,.admin-card h1{font-size:2.25rem;margin:0}.status,.mini-status{display:inline-block;border-radius:999px;padding:7px 11px;font-size:.75rem;font-weight:900;white-space:nowrap}.valid .status,.mini-status.on{background:rgba(68,194,124,.16);color:#77e4a6}.invalid .status,.mini-status.off{background:rgba(239,48,56,.16);color:#ff8c92}.member-facts{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:30px 0}.member-facts div{background:rgba(255,255,255,.05);border-radius:12px;padding:14px}.member-facts dt{color:var(--muted);font-size:.8rem}.member-facts dd{font-weight:800;margin:4px 0 0}.benefits-box{border-top:1px solid var(--line);padding-top:22px}.benefits-box h2{font-size:1.35rem}.benefits-box li{margin:9px 0}.result-actions,.toolbar,.row-actions{display:flex;gap:9px;flex-wrap:wrap;align-items:center}.result-actions{margin-top:28px}.admin-narrow{max-width:500px}.admin-card{background:var(--navy2)}.admin-head{display:flex;justify-content:space-between;align-items:flex-end;gap:25px;margin-bottom:24px}.toolbar form,.row-actions form{margin:0}.admin-search{display:grid;grid-template-columns:1fr auto;max-width:600px;margin-bottom:18px}.table-wrap{overflow:auto;border:1px solid var(--line);border-radius:14px}table{width:100%;border-collapse:collapse;background:var(--navy2);min-width:860px}th,td{text-align:left;padding:15px;border-bottom:1px solid var(--line)}th{color:var(--muted);font-size:.78rem;text-transform:uppercase;letter-spacing:.08em}.row-actions a,.row-actions button{color:var(--gold);background:none;border:0;padding:0;cursor:pointer;font-size:.88rem}.empty{text-align:center;color:var(--muted);padding:40px}.admin-form-shell{max-width:900px}.admin-form{padding:32px}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 18px}.admin-card textarea{resize:vertical}.admin-card select{height:51px}
@media(max-width:900px){.nav nav{display:none}.hero-grid,.split{grid-template-columns:1fr}.benefit-grid{grid-template-columns:1fr 1fr}.hero{padding:48px 0}.contact-card,.admin-head{align-items:flex-start;flex-direction:column}.service-list div{grid-template-columns:1fr}.member-facts{grid-template-columns:1fr}}
@media(max-width:600px){.site-logo{width:120px}.brand strong{font-size:.8rem}.brand small{font-size:.6rem}.wordmark{font-size:1.55rem}.lookup-card,.member-card,.not-found,.admin-card{padding:22px}.lookup-row{grid-template-columns:1fr}.lookup-row button{padding:13px}.benefit-grid,.form-grid{grid-template-columns:1fr}.member-top,.footer-grid{flex-direction:column}.status{margin-top:5px}.contact-card{padding:26px}.toolbar{width:100%}.toolbar .button,.toolbar form,.toolbar form button{width:100%}}
.catalog-page,.product-page{min-height:70vh;padding-bottom:70px}.catalog-hero{padding:48px 0;background:linear-gradient(135deg,#0b3158,#071a33);border-bottom:1px solid var(--line)}.catalog-hero h1{font-size:2.8rem;margin:0}.catalog-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;padding-top:30px}.product-card{overflow:hidden;background:var(--navy2);border:1px solid var(--line);border-radius:18px}.product-card img,.product-placeholder{width:100%;height:220px;object-fit:cover;background:linear-gradient(135deg,#173e65,#0a213b);display:grid;place-items:center;color:var(--gold);font-weight:900}.product-card-body{padding:20px}.product-card h2{margin:0 0 8px}.product-card p{color:var(--muted);min-height:48px}.product-card del,.product-card strong{display:block}.product-card .button{margin-top:15px}.catalog-empty{grid-column:1/-1}.product-page{padding-top:42px}.product-detail-grid{display:grid;grid-template-columns:1fr 1fr;gap:30px;align-items:start}.product-main-image,.product-placeholder.large{width:100%;height:440px;object-fit:cover;border-radius:20px}.gold-price{color:var(--gold)}.product-actions{display:flex;gap:10px;flex-wrap:wrap}.button.zalo{background:#0674e7;color:#fff}.product-info-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:25px}.preline{white-space:pre-line}.youtube-section{margin-top:30px}.video-frame{position:relative;padding-top:56.25%;border-radius:18px;overflow:hidden;background:#000}.video-frame iframe{position:absolute;inset:0;width:100%;height:100%;border:0}.admin-product-thumb{display:block;width:180px;max-height:140px;object-fit:cover;border-radius:10px;margin:8px 0}.product-editor{margin:12px 0}.product-editor summary{cursor:pointer;padding:4px}.product-editor form{margin-top:24px}.category-tabs{display:flex;gap:8px;flex-wrap:wrap;margin:22px 0}.category-tabs a{padding:9px 13px;border:1px solid var(--line);border-radius:999px}.category-tabs a.active{background:var(--gold);color:#17202a}.shop-product{display:grid;grid-template-columns:120px 1fr;gap:16px;margin:12px 0}.shop-product>a img{width:120px;height:110px;object-fit:cover;border-radius:10px}.shop-product.no-image{grid-template-columns:1fr}.shop-product label{display:flex;justify-content:space-between;gap:15px;align-items:center;margin:0}.shop-product label>span:first-child{display:grid;gap:4px}.shop-product small{color:var(--muted)}.shop-product input[type=number]{width:85px}.detail-link{color:var(--gold);font-size:.9rem}
@media(max-width:900px){.product-detail-grid{grid-template-columns:1fr}.catalog-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:600px){.catalog-grid,.product-info-grid{grid-template-columns:1fr}.shop-product{grid-template-columns:1fr}.shop-product>a img{width:100%;height:190px}.shop-product label{align-items:flex-start;flex-direction:column}.product-main-image,.product-placeholder.large{height:300px}}

/* Bổ sung đa ngôn ngữ sản phẩm 25-09-2026 */
.language-switch{display:inline-flex;gap:6px;align-items:center;margin-left:8px;font-weight:700}.language-switch a{opacity:.65}.language-switch a.active{opacity:1;text-decoration:underline}.lang-admin-section{border:1px solid rgba(128,128,128,.28);border-radius:12px;padding:16px;margin:14px 0}.lang-admin-section h3{margin-top:0}

/* Sửa bố cục trang đăng nhập quản trị 26-09-2026 */
.admin-page .admin-narrow .admin-card h1{margin-bottom:24px}
.admin-page .admin-narrow .admin-card .button.full{margin-top:4px}