:root{--bg:#fff;--bg-soft:#f6f7f9;--card:#fff;--text:#16181d;--muted:#6b7280;--border:#e7e9ee;--accent:#4f46e5;--accent-hover:#4338ca;--accent-soft:#eef2ff;--success:#16a34a;--success-soft:#dcfce7;--danger:#dc2626;--danger-soft:#fee2e2;--warn:#b45309;--warn-soft:#fef3c7;--radius:14px;--shadow:0 1px 2px rgba(16,24,40,.04),0 8px 24px rgba(16,24,40,.06);--maxw:1120px}*{box-sizing:border-box}body,html{margin:0;padding:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif,Apple Color Emoji,Segoe UI Emoji;-webkit-font-smoothing:antialiased;line-height:1.5}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}.container{max-width:var(--maxw);margin:0 auto;padding:0 20px}.site-header{position:-webkit-sticky;position:sticky;top:0;z-index:40;background:hsla(0,0%,100%,.85);-webkit-backdrop-filter:saturate(180%) blur(10px);backdrop-filter:saturate(180%) blur(10px);border-bottom:1px solid var(--border)}.site-header .bar{justify-content:space-between;height:64px}.brand,.site-header .bar{display:flex;align-items:center}.brand{font-weight:700;font-size:19px;letter-spacing:-.02em;gap:9px}.brand .dot{width:26px;height:26px;border-radius:8px;background:linear-gradient(135deg,var(--accent),#8b5cf6);display:inline-block}.nav-links{display:flex;align-items:center;gap:22px}.nav-links a{color:var(--muted);font-size:15px;font-weight:500}.nav-links a:hover{color:var(--text)}.cart-btn{position:relative;gap:8px;background:var(--text);padding:9px 16px;font-size:14px;font-weight:600}.cart-btn,.cart-btn .badge{display:inline-flex;align-items:center;color:#fff;border-radius:999px}.cart-btn .badge{background:var(--accent);min-width:20px;height:20px;padding:0 6px;font-size:12px;justify-content:center}.hero{background:radial-gradient(1200px 400px at 50% -10%,var(--accent-soft),transparent),var(--bg-soft);border-bottom:1px solid var(--border)}.hero .inner{padding:64px 0 56px;text-align:center}.hero h1{font-size:44px;line-height:1.08;letter-spacing:-.03em;margin:0 0 14px}.hero p{color:var(--muted);font-size:18px;margin:0 auto;max-width:560px}.section{padding:44px 0 72px}.section-head{display:flex;align-items:baseline;justify-content:space-between;margin-bottom:22px}.section-head h2{font-size:22px;letter-spacing:-.02em;margin:0}.section-head .count{color:var(--muted);font-size:14px}.grid{display:grid;grid-template-columns:repeat(4,1fr);grid-gap:22px;gap:22px}@media (max-width:980px){.grid{grid-template-columns:repeat(3,1fr)}}@media (max-width:720px){.grid{grid-template-columns:repeat(2,1fr)}}@media (max-width:460px){.grid{grid-template-columns:1fr}}.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;transition:transform .15s ease,box-shadow .15s ease;display:flex;flex-direction:column}.card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}.card .thumb{aspect-ratio:1/1;background:var(--bg-soft);overflow:hidden;position:relative}.card .thumb img{width:100%;height:100%;object-fit:cover}.card .thumb .placeholder{width:100%;height:100%;display:flex;align-items:center;justify-content:center;color:#c2c7d0;font-size:13px}.card .body{padding:14px 15px 16px;display:flex;flex-direction:column;gap:6px;flex:1 1}.card .name{font-weight:600;font-size:15px;letter-spacing:-.01em}.card .price{font-weight:700;font-size:16px}.card .row{display:flex;align-items:center;justify-content:space-between;margin-top:auto;padding-top:6px}.badge-stock{font-size:12px;font-weight:600;padding:3px 9px;border-radius:999px}.in-stock{background:var(--success-soft);color:var(--success)}.low-stock{background:var(--warn-soft);color:var(--warn)}.out-stock{background:var(--danger-soft);color:var(--danger)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid transparent;border-radius:10px;padding:11px 18px;font-size:15px;font-weight:600;cursor:pointer;transition:background .15s ease,opacity .15s ease,border-color .15s;background:var(--accent);color:#fff}.btn:hover{background:var(--accent-hover)}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-block{width:100%}.btn-outline{background:#fff;color:var(--text);border-color:var(--border)}.btn-outline:hover{background:var(--bg-soft)}.btn-dark{background:var(--text);color:#fff}.btn-dark:hover{background:#000}.btn-danger{background:#fff;color:var(--danger);border-color:var(--danger-soft)}.btn-danger:hover{background:var(--danger-soft)}.btn-sm{padding:8px 12px;font-size:13px;border-radius:8px}.pd{display:grid;grid-template-columns:1.1fr 1fr;grid-gap:44px;gap:44px;padding:40px 0 72px}@media (max-width:820px){.pd{grid-template-columns:1fr;gap:26px}}.pd .image{aspect-ratio:1/1;background:var(--bg-soft);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden}.pd .image img{width:100%;height:100%;object-fit:cover}.pd h1{font-size:32px;letter-spacing:-.02em;margin:6px 0 10px}.pd .price{font-size:26px;font-weight:700;margin:4px 0 14px}.pd .desc{color:var(--muted);font-size:16px;white-space:pre-wrap;margin:14px 0 22px}.qty{display:inline-flex;align-items:center;border:1px solid var(--border);border-radius:10px;overflow:hidden;margin-bottom:16px}.qty button{width:40px;height:42px;border:none;background:#fff;font-size:18px;cursor:pointer}.qty button:hover{background:var(--bg-soft)}.qty span{width:46px;text-align:center;font-weight:600}.back-link{color:var(--muted);font-size:14px;display:inline-block;margin:26px 0 0}.back-link:hover{color:var(--text)}.cart-wrap{padding:36px 0 72px;max-width:760px;margin:0 auto}.cart-wrap h1{font-size:28px;letter-spacing:-.02em}.cart-item{display:flex;gap:14px;align-items:center;padding:16px 0;border-bottom:1px solid var(--border)}.cart-item .ci-thumb{width:76px;height:76px;border-radius:10px;background:var(--bg-soft);overflow:hidden;flex-shrink:0}.cart-item .ci-thumb img{width:100%;height:100%;object-fit:cover}.cart-item .ci-main{flex:1 1}.cart-item .ci-name{font-weight:600}.cart-item .ci-price{color:var(--muted);font-size:14px}.cart-summary{margin-top:24px;padding:20px;background:var(--bg-soft);border-radius:var(--radius);border:1px solid var(--border)}.cart-summary .line{display:flex;justify-content:space-between;margin-bottom:8px}.cart-summary .total{font-size:20px;font-weight:700;border-top:1px solid var(--border);padding-top:12px;margin-top:6px}.empty{text-align:center;padding:70px 20px;color:var(--muted)}.empty .big{font-size:18px;color:var(--text);font-weight:600;margin-bottom:6px}.notice{text-align:center;max-width:480px;margin:80px auto;padding:36px;background:var(--card);border:1px solid var(--border);border-radius:var(--radius)}.notice h1{font-size:24px;margin:16px 0 8px}.notice p{color:var(--muted)}.notice .icon{width:56px;height:56px;border-radius:50%;margin:0 auto;display:flex;align-items:center;justify-content:center;font-size:28px}.notice .icon.ok{background:var(--success-soft);color:var(--success)}.notice .icon.warn{background:var(--warn-soft);color:var(--warn)}.site-footer{border-top:1px solid var(--border);background:var(--bg-soft);margin-top:40px}.site-footer .inner{padding:34px 0;display:flex;justify-content:space-between;flex-wrap:wrap;gap:16px;color:var(--muted);font-size:14px}.field{margin-bottom:16px}.field label{display:block;font-size:13px;font-weight:600;margin-bottom:6px;color:#374151}.input,.textarea,select.input{width:100%;padding:11px 13px;border:1px solid var(--border);border-radius:10px;font-size:15px;font-family:inherit;background:#fff}.input:focus,.textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}.textarea{min-height:96px;resize:vertical}.help{color:var(--muted);font-size:13px;margin-top:5px}.auth-card{max-width:400px;margin:70px auto;padding:32px;background:var(--card);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow)}.auth-card h1{font-size:22px;margin:0 0 4px}.auth-card .sub{color:var(--muted);font-size:14px;margin-bottom:22px}.alert{padding:11px 14px;border-radius:10px;font-size:14px;margin-bottom:16px}.alert-error{background:var(--danger-soft);color:var(--danger)}.alert-ok{background:var(--success-soft);color:var(--success)}.admin-top{border-bottom:1px solid var(--border);background:#fff}.admin-top .bar{display:flex;align-items:center;justify-content:space-between;height:60px}.admin-top .brand{font-size:16px}.admin-tag{font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.06em;background:var(--accent-soft);color:var(--accent);padding:3px 8px;border-radius:6px;margin-left:8px}.tabs{display:flex;gap:6px;margin:26px 0 20px}.tab{padding:8px 16px;border-radius:999px;font-size:14px;font-weight:600;cursor:pointer;color:var(--muted);background:transparent;border:1px solid transparent}.tab.active{background:var(--text);color:#fff}.tab:not(.active):hover{background:var(--bg-soft);color:var(--text)}.panel{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:22px}.panel h3{margin:0 0 16px;font-size:17px}.admin-grid{display:grid;grid-template-columns:360px 1fr;grid-gap:24px;gap:24px;align-items:start}@media (max-width:860px){.admin-grid{grid-template-columns:1fr}}table.list{width:100%;border-collapse:collapse}table.list td,table.list th{text-align:left;padding:12px 10px;border-bottom:1px solid var(--border);font-size:14px}table.list th{color:var(--muted);font-weight:600;font-size:12px;text-transform:uppercase;letter-spacing:.04em}table.list .tprod{display:flex;align-items:center;gap:10px}table.list .tprod img{width:40px;height:40px;border-radius:8px;object-fit:cover;background:var(--bg-soft)}.actions{display:flex;gap:8px}.uploader{border:2px dashed var(--border);border-radius:12px;padding:18px;text-align:center;cursor:pointer;color:var(--muted);font-size:14px;background:var(--bg-soft)}.uploader:hover{border-color:var(--accent);color:var(--accent)}.preview-img{width:100%;aspect-ratio:1/1;object-fit:cover;border-radius:10px;border:1px solid var(--border);margin-bottom:12px}.spinner{width:18px;height:18px;border:2px solid hsla(0,0%,100%,.4);border-top-color:#fff;border-radius:50%;animation:spin .7s linear infinite}@keyframes spin{to{transform:rotate(1turn)}}