/* ============================================================
   NEXUS MARKET - Premium Digital Storefront
   Dark-mode modern design system
   ============================================================ */

:root {
    /* Color ramps */
    --bg-900: #0a0b14;
    --bg-800: #0f1120;
    --bg-700: #161930;
    --bg-600: #1d2138;
    --bg-500: #262b48;
    --surface: #14162a;
    --surface-2: #1a1d36;
    --surface-3: #222645;

    --primary-50: #eef2ff;
    --primary-100: #e0e7ff;
    --primary-300: #a5b4fc;
    --primary-400: #818cf8;
    --primary-500: #6366f1;
    --primary-600: #4f46e5;
    --primary-700: #4338ca;

    --accent-400: #22d3ee;
    --accent-500: #06b6d4;
    --accent-600: #0891b2;

    --success-500: #10b981;
    --success-600: #059669;
    --warning-500: #f59e0b;
    --warning-600: #d97706;
    --error-500: #ef4444;
    --error-600: #dc2626;

    --text-100: #f8fafc;
    --text-200: #e2e8f0;
    --text-300: #cbd5e1;
    --text-400: #94a3b8;
    --text-500: #64748b;
    --text-600: #475569;

    --border: rgba(255,255,255,0.08);
    --border-strong: rgba(255,255,255,0.16);

    --radius-sm: 8px;
    --radius: 14px;
    --radius-lg: 20px;
    --radius-xl: 28px;

    --shadow-sm: 0 2px 8px rgba(0,0,0,0.25);
    --shadow: 0 8px 24px rgba(0,0,0,0.35);
    --shadow-lg: 0 20px 50px rgba(0,0,0,0.5);
    --glow: 0 0 40px rgba(99,102,241,0.25);

    --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
    --font-display: 'Sora', 'Inter', system-ui, sans-serif;

    --header-h: 72px;
    --container: 1240px;
}

* { margin:0; padding:0; box-sizing:border-box; }
html { scroll-behavior:smooth; }
html.dark { color-scheme: dark; }

body {
    font-family: var(--font-sans);
    background: var(--bg-900);
    color: var(--text-200);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

a { color: inherit; text-decoration:none; }
img { max-width:100%; display:block; }
button { font-family:inherit; cursor:pointer; border:none; background:none; color:inherit; }
input, textarea, select { font-family:inherit; }
ul { list-style:none; }

.container { max-width: var(--container); margin:0 auto; padding:0 24px; }

/* ---------- Typography ---------- */
h1,h2,h3,h4,h5 { font-family: var(--font-display); font-weight:700; line-height:1.2; color: var(--text-100); }
h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.5rem, 3.5vw, 2.5rem); }
h3 { font-size: 1.25rem; }
.section-title { font-size: 1.75rem; margin-bottom: 8px; }
.section-sub { color: var(--text-400); margin-bottom: 32px; }

/* ---------- Buttons ---------- */
.btn {
    display:inline-flex; align-items:center; justify-content:center; gap:8px;
    padding: 12px 22px; border-radius: var(--radius-sm);
    font-weight:600; font-size: 0.95rem;
    transition: all .2s ease;
    border: 1px solid transparent;
    white-space: nowrap;
}
.btn-sm { padding: 8px 16px; font-size: 0.85rem; }
.btn-lg { padding: 16px 32px; font-size: 1.05rem; }
.btn-block { width:100%; }
.btn-primary {
    background: linear-gradient(135deg, var(--primary-600), var(--primary-500));
    color: #fff;
    box-shadow: 0 4px 14px rgba(99,102,241,0.4);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(99,102,241,0.55); }
.btn-secondary {
    background: var(--surface-2); color: var(--text-100);
    border-color: var(--border-strong);
}
.btn-secondary:hover { background: var(--surface-3); border-color: var(--primary-500); }
.btn-ghost { background: transparent; color: var(--text-300); border-color: var(--border); }
.btn-ghost:hover { background: var(--surface-2); color: var(--text-100); }
.btn-danger { background: var(--error-600); color:#fff; }
.btn-danger:hover { background: var(--error-500); }
.btn-success { background: var(--success-600); color:#fff; }
.btn-success:hover { background: var(--success-500); }
.btn:disabled { opacity:.5; cursor:not-allowed; transform:none !important; }

/* ---------- Header ---------- */
.site-header {
    position: sticky; top:0; z-index:100;
    background: rgba(10,11,20,0.75);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    transition: all .3s ease;
}
.site-header.scrolled { background: rgba(10,11,20,0.95); box-shadow: var(--shadow-sm); }
.header-inner {
    display:flex; align-items:center; gap:24px;
    height: var(--header-h);
}
.logo { display:flex; align-items:center; gap:10px; font-weight:800; font-family: var(--font-display); font-size:1.25rem; color: var(--text-100); flex-shrink:0; }
.logo-mark {
    width:38px; height:38px; border-radius:10px;
    background: linear-gradient(135deg, var(--primary-500), var(--accent-500));
    display:flex; align-items:center; justify-content:center;
    font-size:1.2rem; font-weight:800; color:#fff;
    box-shadow: 0 4px 12px rgba(99,102,241,0.4);
}
.search-bar {
    flex:1; max-width: 520px;
    display:flex; align-items:center; gap:8px;
    background: var(--surface); border:1px solid var(--border);
    border-radius: 999px; padding: 8px 8px 8px 18px;
    transition: all .2s ease;
}
.search-bar:focus-within { border-color: var(--primary-500); box-shadow: 0 0 0 3px rgba(99,102,241,0.15); }
.search-bar svg { width:18px; height:18px; color: var(--text-500); flex-shrink:0; }
.search-bar input { flex:1; background:none; border:none; outline:none; color: var(--text-100); font-size:0.9rem; }
.search-bar input::placeholder { color: var(--text-500); }

.header-nav { display:flex; align-items:center; gap:8px; margin-left:auto; }
.nav-link {
    display:inline-flex; align-items:center; gap:6px;
    padding: 8px 14px; border-radius: var(--radius-sm);
    color: var(--text-300); font-weight:500; font-size:0.9rem;
    position:relative; transition: all .2s ease;
}
.nav-link:hover { color: var(--text-100); background: var(--surface-2); }
.nav-link.active { color: var(--primary-400); }
.nav-link svg { width:20px; height:20px; }
.nav-account-label { font-size:0.9rem; }
.badge {
    position:absolute; top:-2px; right:-2px;
    background: var(--error-500); color:#fff;
    font-size: 0.65rem; font-weight:700;
    min-width: 18px; height:18px; padding:0 4px;
    border-radius: 999px;
    display:flex; align-items:center; justify-content:center;
    border: 2px solid var(--bg-900);
}
.menu-toggle { display:none; flex-direction:column; gap:5px; padding:8px; }
.menu-toggle span { width:24px; height:2px; background: var(--text-200); border-radius:2px; transition: all .3s; }
.menu-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px,5px); }
.menu-toggle.active span:nth-child(2) { opacity:0; }
.menu-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(7px,-7px); }

/* ---------- Flash messages ---------- */
.flash-container { max-width: var(--container); margin: 16px auto; padding: 0 24px; }
.flash { padding: 14px 20px; border-radius: var(--radius-sm); margin-bottom: 10px; font-weight:500; font-size:0.9rem; }
.flash-success { background: rgba(16,185,129,0.12); border:1px solid var(--success-500); color: var(--success-500); }
.flash-error { background: rgba(239,68,68,0.12); border:1px solid var(--error-500); color: var(--error-500); }
.flash-info { background: rgba(99,102,241,0.12); border:1px solid var(--primary-500); color: var(--primary-300); }

/* ---------- Hero ---------- */
.hero {
    position: relative;
    padding: 80px 0 60px;
    overflow: hidden;
}
.hero::before {
    content:''; position:absolute; inset:0;
    background:
        radial-gradient(ellipse 60% 50% at 20% 20%, rgba(99,102,241,0.18), transparent 60%),
        radial-gradient(ellipse 50% 40% at 80% 30%, rgba(6,182,212,0.12), transparent 60%);
    pointer-events:none;
}
.hero-grid {
    position:relative; z-index:1;
    display:grid; grid-template-columns: 1.1fr 0.9fr; gap: 48px; align-items:center;
}
.hero-content { animation: fadeUp .8s ease; }
.hero-badge {
    display:inline-flex; align-items:center; gap:8px;
    padding: 6px 14px; border-radius: 999px;
    background: rgba(99,102,241,0.1); border:1px solid rgba(99,102,241,0.3);
    color: var(--primary-300); font-size:0.85rem; font-weight:600;
    margin-bottom: 24px;
}
.hero-badge::before { content:''; width:8px; height:8px; border-radius:50%; background: var(--success-500); box-shadow:0 0 8px var(--success-500); }
.hero h1 { margin-bottom: 20px; }
.hero h1 .gradient-text {
    background: linear-gradient(135deg, var(--primary-400), var(--accent-400));
    -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}
.hero p { color: var(--text-300); font-size: 1.1rem; margin-bottom: 32px; max-width: 540px; }
.hero-actions { display:flex; gap:16px; flex-wrap:wrap; }
.hero-stats { display:flex; gap: 32px; margin-top: 40px; }
.hero-stat .num { font-family: var(--font-display); font-size: 1.75rem; font-weight:800; color: var(--text-100); }
.hero-stat .label { color: var(--text-400); font-size: 0.85rem; }

.hero-visual {
    position:relative; animation: fadeUp 1s ease .2s both;
}
.hero-card-stack { position:relative; }
.hero-card {
    background: linear-gradient(145deg, var(--surface-2), var(--surface));
    border:1px solid var(--border-strong);
    border-radius: var(--radius-lg);
    padding: 24px; box-shadow: var(--shadow-lg);
    position:relative; overflow:hidden;
}
.hero-card::before {
    content:''; position:absolute; top:0; left:0; right:0; height:2px;
    background: linear-gradient(90deg, var(--primary-500), var(--accent-500));
}
.hero-card-img {
    height: 200px; border-radius: var(--radius);
    background: linear-gradient(135deg, var(--primary-700), var(--accent-600));
    display:flex; align-items:center; justify-content:center;
    margin-bottom: 16px; position:relative; overflow:hidden;
}
.hero-card-img::after {
    content:''; position:absolute; inset:0;
    background: radial-gradient(circle at 30% 30%, rgba(255,255,255,0.15), transparent 50%);
}
.hero-card-img svg { width:64px; height:64px; color: rgba(255,255,255,0.8); }
.hero-card h3 { margin-bottom: 6px; }
.hero-card .price { display:flex; align-items:center; gap:10px; margin-top:10px; }
.hero-card .price-now { font-size:1.5rem; font-weight:800; color: var(--primary-400); font-family: var(--font-display); }
.hero-card .price-old { text-decoration:line-through; color: var(--text-500); }
.floating-tag {
    position:absolute; padding: 8px 14px; border-radius: 999px;
    background: var(--surface-3); border:1px solid var(--border-strong);
    box-shadow: var(--shadow); font-size: 0.8rem; font-weight:600;
    display:flex; align-items:center; gap:6px;
}
.floating-tag.t1 { top:-16px; right:20px; color: var(--success-500); animation: float 4s ease-in-out infinite; }
.floating-tag.t2 { bottom:-16px; left:-12px; color: var(--accent-400); animation: float 4s ease-in-out infinite 1s; }

/* ---------- Sections ---------- */
.section { padding: 56px 0; }
.section-head { display:flex; align-items:flex-end; justify-content:space-between; margin-bottom: 32px; gap:16px; flex-wrap:wrap; }
.section-head a { color: var(--primary-400); font-weight:600; font-size:0.9rem; display:inline-flex; align-items:center; gap:4px; }
.section-head a:hover { gap:8px; transition: gap .2s; }

/* ---------- Category Grid ---------- */
.cat-grid {
    display:grid;
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 16px;
}
.cat-card {
    background: var(--surface); border:1px solid var(--border);
    border-radius: var(--radius); padding: 24px 16px;
    text-align:center; transition: all .3s ease;
    position:relative; overflow:hidden;
}
.cat-card::before {
    content:''; position:absolute; inset:0;
    background: linear-gradient(135deg, rgba(99,102,241,0.08), transparent);
    opacity:0; transition: opacity .3s;
}
.cat-card:hover { transform: translateY(-4px); border-color: var(--primary-500); box-shadow: var(--shadow); }
.cat-card:hover::before { opacity:1; }
.cat-card .cat-icon {
    width:56px; height:56px; margin: 0 auto 14px;
    border-radius: 16px;
    background: linear-gradient(135deg, var(--surface-3), var(--surface-2));
    border:1px solid var(--border);
    display:flex; align-items:center; justify-content:center;
    color: var(--primary-400);
    transition: all .3s ease;
}
.cat-card:hover .cat-icon { background: linear-gradient(135deg, var(--primary-600), var(--primary-500)); color:#fff; transform: scale(1.1); }
.cat-card .cat-icon svg { width:28px; height:28px; }
.cat-card h3 { font-size: 1rem; margin-bottom: 4px; }
.cat-card .cat-count { font-size: 0.8rem; color: var(--text-500); }

/* ---------- Product Grid ---------- */
.product-grid {
    display:grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 20px;
}
.product-card {
    background: var(--surface); border:1px solid var(--border);
    border-radius: var(--radius); overflow:hidden;
    transition: all .3s ease;
    display:flex; flex-direction:column;
    position:relative;
}
.product-card:hover { transform: translateY(-6px); border-color: var(--border-strong); box-shadow: var(--shadow-lg); }
.product-card-img {
    aspect-ratio: 4/3; position:relative; overflow:hidden;
    background: linear-gradient(135deg, var(--surface-3), var(--bg-600));
    display:flex; align-items:center; justify-content:center;
}
.product-card-img img { width:100%; height:100%; object-fit:cover; transition: transform .4s ease; }
.product-card:hover .product-card-img img { transform: scale(1.08); }
.product-card-img .no-img {
    color: var(--text-600); width:48px; height:48px;
}
.product-card-img .no-img svg { width:100%; height:100%; }
.product-badges { position:absolute; top:12px; left:12px; display:flex; flex-direction:column; gap:6px; z-index:2; }
.product-badge {
    padding: 4px 10px; border-radius: 999px; font-size: 0.7rem; font-weight:700;
    backdrop-filter: blur(8px);
}
.badge-discount { background: var(--error-500); color:#fff; }
.badge-new { background: var(--accent-500); color:#fff; }
.badge-feat { background: var(--primary-500); color:#fff; }
.badge-stock-out { background: rgba(0,0,0,0.7); color: var(--text-300); }
.product-card-body { padding: 16px; display:flex; flex-direction:column; flex:1; }
.product-card-cat { font-size: 0.75rem; color: var(--text-500); margin-bottom: 4px; text-transform: uppercase; letter-spacing: 0.05em; }
.product-card-title { font-family: var(--font-sans); font-weight:600; font-size: 1rem; color: var(--text-100); margin-bottom: 8px; line-height:1.4; }
.product-card-title a:hover { color: var(--primary-400); }
.product-card-desc { font-size: 0.85rem; color: var(--text-400); margin-bottom: 14px; display:-webkit-box; -webkit-line-clamp:2; -webkit-box-orient:vertical; overflow:hidden; }
.product-card-foot { margin-top:auto; display:flex; align-items:center; justify-content:space-between; gap:8px; }
.product-price { display:flex; flex-direction:column; }
.product-price .now { font-size: 1.2rem; font-weight:800; color: var(--primary-400); font-family: var(--font-display); }
.product-price .old { font-size: 0.85rem; text-decoration:line-through; color: var(--text-500); }
.product-add {
    width:40px; height:40px; border-radius: 12px;
    background: var(--primary-600); color:#fff;
    display:flex; align-items:center; justify-content:center;
    transition: all .2s ease; flex-shrink:0;
}
.product-add:hover { background: var(--primary-500); transform: scale(1.1); }
.product-add svg { width:20px; height:20px; }
.product-add.disabled { background: var(--surface-3); color: var(--text-500); cursor:not-allowed; }

/* ---------- Trust / Features ---------- */
.features { background: var(--bg-800); }
.feature-grid {
    display:grid; grid-template-columns: repeat(auto-fill, minmax(220px,1fr)); gap: 24px;
}
.feature-card {
    text-align:center; padding: 28px 20px;
    border-radius: var(--radius); background: var(--surface);
    border:1px solid var(--border); transition: all .3s ease;
}
.feature-card:hover { border-color: var(--primary-500); transform: translateY(-4px); }
.feature-icon {
    width:64px; height:64px; margin: 0 auto 16px;
    border-radius: 18px;
    background: linear-gradient(135deg, rgba(99,102,241,0.15), rgba(6,182,212,0.1));
    border:1px solid rgba(99,102,241,0.2);
    display:flex; align-items:center; justify-content:center;
    color: var(--primary-400);
}
.feature-icon svg { width:30px; height:30px; }
.feature-card h3 { font-size:1.05rem; margin-bottom: 6px; }
.feature-card p { font-size:0.88rem; color: var(--text-400); }

/* ---------- CTA ---------- */
.cta-band {
    margin: 40px 0;
    background: linear-gradient(135deg, var(--primary-700), var(--accent-600));
    border-radius: var(--radius-xl);
    padding: 48px; text-align:center; position:relative; overflow:hidden;
}
.cta-band::before {
    content:''; position:absolute; inset:0;
    background: radial-gradient(circle at 20% 50%, rgba(255,255,255,0.12), transparent 50%);
}
.cta-band h2 { color:#fff; margin-bottom: 12px; position:relative; }
.cta-band p { color: rgba(255,255,255,0.85); margin-bottom: 24px; position:relative; }
.cta-band .btn { position:relative; }

/* ---------- Footer ---------- */
.site-footer {
    background: var(--bg-800); border-top: 1px solid var(--border);
    padding-top: 56px; margin-top: 40px;
}
.footer-grid {
    display:grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px;
    padding-bottom: 40px;
}
.footer-brand .logo { margin-bottom: 16px; }
.footer-desc { color: var(--text-400); font-size: 0.9rem; margin-bottom: 16px; max-width: 300px; }
.social-links { display:flex; gap: 12px; }
.social-links a {
    width:40px; height:40px; border-radius: 12px;
    background: var(--surface); border:1px solid var(--border);
    display:flex; align-items:center; justify-content:center;
    color: var(--text-400); transition: all .2s ease;
}
.social-links a:hover { color: var(--primary-400); border-color: var(--primary-500); transform: translateY(-2px); }
.social-links svg { width:18px; height:18px; }
.footer-col h4 { font-size: 1rem; margin-bottom: 16px; color: var(--text-100); }
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul li a { color: var(--text-400); font-size: 0.9rem; transition: color .2s; }
.footer-col ul li a:hover { color: var(--primary-400); }
.footer-bottom { border-top: 1px solid var(--border); padding: 20px 0; }
.footer-bottom-inner { display:flex; justify-content:space-between; align-items:center; flex-wrap:wrap; gap:12px; }
.footer-bottom p { color: var(--text-500); font-size: 0.85rem; }
.footer-payments { display:flex; align-items:center; gap:8px; color: var(--text-400); font-size:0.85rem; }

/* ---------- Back to top ---------- */
.back-to-top {
    position:fixed; bottom: 24px; right: 24px;
    width:48px; height:48px; border-radius: 14px;
    background: var(--primary-600); color:#fff;
    display:flex; align-items:center; justify-content:center;
    box-shadow: var(--shadow); opacity:0; pointer-events:none;
    transition: all .3s ease; z-index: 90;
}
.back-to-top.show { opacity:1; pointer-events:auto; }
.back-to-top:hover { background: var(--primary-500); transform: translateY(-4px); }
.back-to-top svg { width:22px; height:22px; }

/* ---------- Auth pages ---------- */
.auth-wrap {
    min-height: calc(100vh - var(--header-h));
    display:flex; align-items:center; justify-content:center;
    padding: 48px 24px;
    position:relative; overflow:hidden;
}
.auth-wrap::before {
    content:''; position:absolute; inset:0;
    background:
        radial-gradient(ellipse 50% 40% at 20% 30%, rgba(99,102,241,0.15), transparent 60%),
        radial-gradient(ellipse 40% 30% at 80% 70%, rgba(6,182,212,0.1), transparent 60%);
}
.auth-card {
    position:relative; z-index:1;
    width:100%; max-width: 440px;
    background: var(--surface); border:1px solid var(--border-strong);
    border-radius: var(--radius-lg); padding: 40px;
    box-shadow: var(--shadow-lg);
}
.auth-card.center { text-align:center; }
.auth-card .logo { justify-content:center; margin-bottom: 24px; }
.auth-card h2 { text-align:center; margin-bottom: 8px; }
.auth-card .auth-sub { text-align:center; color: var(--text-400); margin-bottom: 28px; font-size:0.9rem; }
.form-group { margin-bottom: 18px; }
.form-group label { display:block; font-size: 0.88rem; font-weight:500; color: var(--text-300); margin-bottom: 8px; }
.form-group input, .form-group select, .form-group textarea {
    width:100%; padding: 12px 16px;
    background: var(--bg-700); border:1px solid var(--border);
    border-radius: var(--radius-sm); color: var(--text-100);
    font-size: 0.95rem; transition: all .2s ease;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
    outline:none; border-color: var(--primary-500);
    box-shadow: 0 0 0 3px rgba(99,102,241,0.15);
}
.form-group textarea { resize:vertical; min-height: 100px; }
.form-group .hint { font-size: 0.8rem; color: var(--text-500); margin-top: 6px; }
.form-row { display:flex; gap: 16px; }
.form-row .form-group { flex:1; }
.form-error { color: var(--error-500); font-size: 0.85rem; margin-bottom: 16px; }
.auth-foot { text-align:center; margin-top: 20px; font-size: 0.88rem; color: var(--text-400); }
.auth-foot a { color: var(--primary-400); font-weight:600; }

/* ---------- Page header / banner ---------- */
.page-head {
    padding: 40px 0 24px;
    border-bottom: 1px solid var(--border);
    margin-bottom: 32px;
}
.breadcrumb { display:flex; gap:8px; font-size:0.85rem; color: var(--text-500); margin-bottom: 12px; }
.breadcrumb a:hover { color: var(--primary-400); }
.breadcrumb span { color: var(--text-400); }
.page-head h1 { font-size: 2rem; }
.page-head p { color: var(--text-400); margin-top: 8px; }

/* ---------- Filters / Sidebar ---------- */
.shop-layout { display:grid; grid-template-columns: 260px 1fr; gap: 32px; }
.filter-sidebar {
    background: var(--surface); border:1px solid var(--border);
    border-radius: var(--radius); padding: 24px; height:fit-content; position:sticky; top: calc(var(--header-h) + 16px);
}
.filter-group { margin-bottom: 24px; padding-bottom: 24px; border-bottom: 1px solid var(--border); }
.filter-group:last-child { border-bottom:none; margin-bottom:0; padding-bottom:0; }
.filter-group h4 { font-size: 0.95rem; margin-bottom: 14px; }
.filter-list li { margin-bottom: 10px; }
.filter-list label { display:flex; align-items:center; gap:8px; font-size:0.9rem; color: var(--text-300); cursor:pointer; }
.filter-list input[type=checkbox], .filter-list input[type=radio] { accent-color: var(--primary-500); }
.filter-list .count { color: var(--text-500); font-size:0.8rem; margin-left:auto; }
.price-range { display:flex; gap:8px; align-items:center; }
.price-range input { width: 80px; padding: 8px; background: var(--bg-700); border:1px solid var(--border); border-radius: var(--radius-sm); color: var(--text-100); font-size:0.85rem; }
.shop-toolbar {
    display:flex; justify-content:space-between; align-items:center; margin-bottom: 20px; gap:16px; flex-wrap:wrap;
}
.shop-toolbar .result-count { color: var(--text-400); font-size: 0.9rem; }
.shop-toolbar select { padding: 8px 14px; background: var(--surface); border:1px solid var(--border); border-radius: var(--radius-sm); color: var(--text-100); font-size:0.9rem; }
.filter-toggle { display:none; }

/* ---------- Product Detail ---------- */
.product-detail { display:grid; grid-template-columns: 1fr 1fr; gap: 48px; }
.product-gallery .main-img {
    aspect-ratio: 1; border-radius: var(--radius-lg); overflow:hidden;
    background: linear-gradient(135deg, var(--surface-3), var(--bg-600));
    display:flex; align-items:center; justify-content:center;
    border:1px solid var(--border);
}
.product-gallery .main-img img { width:100%; height:100%; object-fit:cover; }
.product-gallery .main-img .placeholder { width:80px; height:80px; color: var(--text-600); }
.product-gallery .thumbs { display:flex; gap: 12px; margin-top: 16px; }
.product-gallery .thumbs .thumb {
    width:80px; aspect-ratio:1; border-radius: var(--radius-sm); overflow:hidden;
    border:2px solid var(--border); cursor:pointer; transition: border-color .2s;
}
.product-gallery .thumbs .thumb.active { border-color: var(--primary-500); }
.product-info h1 { font-size: 2rem; margin-bottom: 8px; }
.product-info .meta-row { display:flex; gap: 16px; align-items:center; margin-bottom: 20px; flex-wrap:wrap; }
.product-info .meta-cat { color: var(--primary-400); font-size:0.9rem; font-weight:600; }
.product-info .meta-sep { color: var(--text-600); }
.product-info .meta-status { font-size:0.9rem; font-weight:600; }
.status-in { color: var(--success-500); }
.status-out { color: var(--error-500); }
.product-info .desc { color: var(--text-300); margin-bottom: 24px; line-height:1.7; }
.product-info .price-box {
    background: var(--surface); border:1px solid var(--border);
    border-radius: var(--radius); padding: 24px; margin-bottom: 24px;
}
.product-info .price-row { display:flex; align-items:baseline; gap:14px; margin-bottom: 16px; }
.product-info .price-now { font-size: 2.5rem; font-weight:800; color: var(--primary-400); font-family: var(--font-display); }
.product-info .price-old { font-size: 1.2rem; text-decoration:line-through; color: var(--text-500); }
.product-info .save-tag { background: rgba(16,185,129,0.15); color: var(--success-500); padding: 4px 12px; border-radius: 999px; font-size:0.85rem; font-weight:700; }
.qty-row { display:flex; align-items:center; gap:16px; margin-bottom: 20px; }
.qty-control { display:flex; align-items:center; background: var(--bg-700); border:1px solid var(--border); border-radius: var(--radius-sm); }
.qty-control button { width:40px; height:44px; font-size:1.2rem; color: var(--text-200); }
.qty-control button:hover { color: var(--primary-400); }
.qty-control input { width:50px; text-align:center; background:none; border:none; color: var(--text-100); font-weight:600; font-size:1rem; }
.product-actions { display:flex; gap:12px; flex-wrap:wrap; }
.product-features { margin-top: 28px; padding-top: 24px; border-top: 1px solid var(--border); }
.product-features li { display:flex; gap:10px; align-items:center; margin-bottom: 10px; color: var(--text-300); font-size:0.9rem; }
.product-features svg { width:20px; height:20px; color: var(--success-500); flex-shrink:0; }

/* Tabs */
.detail-tabs { margin-top: 48px; }
.tab-nav { display:flex; gap: 4px; border-bottom: 1px solid var(--border); margin-bottom: 24px; }
.tab-nav button { padding: 12px 20px; font-weight:600; font-size:0.95rem; color: var(--text-400); border-bottom: 2px solid transparent; transition: all .2s; }
.tab-nav button.active { color: var(--primary-400); border-color: var(--primary-500); }
.tab-panel { display:none; }
.tab-panel.active { display:block; animation: fadeUp .4s ease; }
.tab-panel p { color: var(--text-300); line-height:1.7; margin-bottom: 16px; }

/* Reviews */
.review-item { padding: 20px 0; border-bottom: 1px solid var(--border); }
.review-head { display:flex; justify-content:space-between; margin-bottom: 8px; }
.review-author { font-weight:600; color: var(--text-100); }
.review-stars { color: var(--warning-500); }
.review-text { color: var(--text-300); font-size:0.9rem; }
.rating-row { display:flex; align-items:center; gap: 8px; }
.stars { display:inline-flex; gap:2px; }
.stars svg { width:16px; height:16px; color: var(--warning-500); }

/* ---------- Cart ---------- */
.cart-layout { display:grid; grid-template-columns: 1fr 360px; gap: 32px; align-items:start; }
.cart-items { display:flex; flex-direction:column; gap: 16px; }
.cart-item {
    display:grid; grid-template-columns: 80px 1fr auto auto auto; gap:16px; align-items:center;
    background: var(--surface); border:1px solid var(--border);
    border-radius: var(--radius); padding: 16px;
    transition: border-color .2s;
}
.cart-item:hover { border-color: var(--border-strong); }
.cart-item-img { width:80px; height:80px; border-radius: var(--radius-sm); overflow:hidden; background: var(--surface-3); display:flex; align-items:center; justify-content:center; }
.cart-item-img img { width:100%; height:100%; object-fit:cover; }
.cart-item-img .placeholder { width:32px; height:32px; color: var(--text-600); }
.cart-item-info h4 { font-size:1rem; margin-bottom:4px; }
.cart-item-info .cat { font-size:0.8rem; color: var(--text-500); }
.cart-item-price { font-weight:700; color: var(--primary-400); font-family: var(--font-display); }
.cart-item .qty-control { transform: scale(0.85); transform-origin:left center; }
.cart-item-remove { color: var(--text-500); padding:8px; border-radius:8px; transition: all .2s; }
.cart-item-remove:hover { color: var(--error-500); background: rgba(239,68,68,0.1); }
.cart-item-remove svg { width:20px; height:20px; }
.cart-summary {
    background: var(--surface); border:1px solid var(--border);
    border-radius: var(--radius); padding: 24px; position:sticky; top: calc(var(--header-h) + 16px);
}
.cart-summary h3 { margin-bottom: 20px; }
.summary-row { display:flex; justify-content:space-between; margin-bottom: 12px; color: var(--text-300); font-size:0.95rem; }
.summary-row.total { font-size:1.3rem; font-weight:800; color: var(--text-100); padding-top:16px; border-top: 1px solid var(--border); margin-top:16px; }
.summary-row.total .amount { color: var(--primary-400); font-family: var(--font-display); }
.empty-state { text-align:center; padding: 64px 24px; color: var(--text-400); }
.empty-state svg { width:64px; height:64px; color: var(--text-600); margin: 0 auto 16px; }
.empty-state h3 { margin-bottom: 8px; }
.empty-state p { margin-bottom: 24px; }

/* ---------- User dashboard ---------- */
.user-layout { display:grid; grid-template-columns: 260px 1fr; gap: 32px; }
.user-sidebar {
    background: var(--surface); border:1px solid var(--border);
    border-radius: var(--radius); padding: 24px; height:fit-content; position:sticky; top: calc(var(--header-h) + 16px);
}
.user-profile-mini { text-align:center; margin-bottom: 24px; padding-bottom: 24px; border-bottom: 1px solid var(--border); }
.user-avatar {
    width:64px; height:64px; border-radius: 50%; margin: 0 auto 12px;
    background: linear-gradient(135deg, var(--primary-600), var(--accent-500));
    display:flex; align-items:center; justify-content:center;
    font-size:1.5rem; font-weight:800; color:#fff; font-family: var(--font-display);
}
.user-profile-mini h4 { font-size:1rem; }
.user-profile-mini p { font-size:0.85rem; color: var(--text-500); }
.user-menu li { margin-bottom: 4px; }
.user-menu a {
    display:flex; align-items:center; gap:10px; padding: 10px 14px;
    border-radius: var(--radius-sm); color: var(--text-300);
    font-size:0.9rem; font-weight:500; transition: all .2s;
}
.user-menu a:hover { background: var(--surface-2); color: var(--text-100); }
.user-menu a.active { background: rgba(99,102,241,0.12); color: var(--primary-400); }
.user-menu a svg { width:18px; height:18px; }
.user-content { min-height: 400px; }
.user-content h2 { margin-bottom: 24px; }

.stat-cards { display:grid; grid-template-columns: repeat(auto-fill, minmax(200px,1fr)); gap: 16px; margin-bottom: 32px; }
.stat-card {
    background: var(--surface); border:1px solid var(--border);
    border-radius: var(--radius); padding: 20px;
}
.stat-card .label { font-size:0.85rem; color: var(--text-400); margin-bottom: 8px; }
.stat-card .value { font-size:1.75rem; font-weight:800; color: var(--text-100); font-family: var(--font-display); }
.stat-card .icon { width:40px; height:40px; border-radius:10px; background: rgba(99,102,241,0.12); color: var(--primary-400); display:flex; align-items:center; justify-content:center; margin-bottom:12px; }
.stat-card .icon svg { width:22px; height:22px; }

/* Table */
.data-table { width:100%; border-collapse:collapse; }
.data-table th { text-align:left; padding: 12px 16px; font-size:0.8rem; text-transform:uppercase; letter-spacing:0.05em; color: var(--text-500); border-bottom: 1px solid var(--border); }
.data-table td { padding: 14px 16px; border-bottom: 1px solid var(--border); font-size:0.9rem; color: var(--text-300); }
.data-table tr:hover td { background: var(--surface-2); }
.status-pill { padding: 4px 12px; border-radius: 999px; font-size:0.75rem; font-weight:600; display:inline-block; }
.pill-green { background: rgba(16,185,129,0.15); color: var(--success-500); }
.pill-red { background: rgba(239,68,68,0.15); color: var(--error-500); }
.pill-yellow { background: rgba(245,158,11,0.15); color: var(--warning-500); }
.pill-blue { background: rgba(99,102,241,0.15); color: var(--primary-400); }
.pill-gray { background: var(--surface-3); color: var(--text-400); }

/* Library item */
.library-grid { display:grid; grid-template-columns: repeat(auto-fill, minmax(240px,1fr)); gap: 16px; }
.library-card {
    background: var(--surface); border:1px solid var(--border);
    border-radius: var(--radius); padding: 16px; transition: all .2s;
}
.library-card:hover { border-color: var(--primary-500); }
.library-card h4 { font-size:1rem; margin-bottom: 6px; }
.library-card .order-no { font-size:0.8rem; color: var(--text-500); margin-bottom: 12px; }
.library-card .delivery-box {
    background: var(--bg-700); border:1px solid var(--border);
    border-radius: var(--radius-sm); padding: 12px; margin-top: 12px;
    font-family: monospace; font-size:0.85rem; color: var(--accent-400);
    word-break: break-all;
}

/* Notifications */
.notif-list { display:flex; flex-direction:column; gap: 12px; }
.notif-item {
    background: var(--surface); border:1px solid var(--border);
    border-radius: var(--radius); padding: 16px 20px;
    display:flex; gap: 14px; align-items:flex-start; transition: all .2s;
}
.notif-item.unread { border-color: var(--primary-500); background: rgba(99,102,241,0.05); }
.notif-icon { width:40px; height:40px; border-radius:12px; background: rgba(99,102,241,0.12); color: var(--primary-400); display:flex; align-items:center; justify-content:center; flex-shrink:0; }
.notif-icon svg { width:20px; height:20px; }
.notif-body h4 { font-size:0.95rem; margin-bottom: 4px; }
.notif-body p { font-size:0.85rem; color: var(--text-400); }
.notif-time { font-size:0.75rem; color: var(--text-500); margin-left:auto; white-space:nowrap; }

/* ---------- Pagination ---------- */
.pagination { display:flex; gap: 6px; justify-content:center; margin-top: 32px; }
.pagination a, .pagination span {
    min-width:40px; height:40px; border-radius: 10px;
    display:flex; align-items:center; justify-content:center;
    padding: 0 12px; font-size:0.9rem; font-weight:600;
    background: var(--surface); border:1px solid var(--border); color: var(--text-300);
    transition: all .2s;
}
.pagination a:hover { border-color: var(--primary-500); color: var(--primary-400); }
.pagination .current { background: var(--primary-600); color:#fff; border-color: var(--primary-600); }

/* ---------- Animations ---------- */
@keyframes fadeUp { from { opacity:0; transform: translateY(20px); } to { opacity:1; transform: translateY(0); } }
@keyframes float { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-10px); } }
.reveal { opacity:0; transform: translateY(30px); transition: all .6s ease; }
.reveal.in { opacity:1; transform: translateY(0); }

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
    .shop-layout { grid-template-columns: 1fr; }
    .filter-sidebar { display:none; }
    .filter-toggle { display:inline-flex; }
    .cart-layout { grid-template-columns: 1fr; }
    .user-layout { grid-template-columns: 1fr; }
    .user-sidebar { position:static; }
    .product-detail { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
    .header-inner { flex-wrap:wrap; height:auto; padding: 12px 0; gap:12px; }
    .search-bar { order:3; width:100%; max-width:none; }
    .header-nav { display:none; position:fixed; top:0; right:0; bottom:0; width:280px; background: var(--bg-800); flex-direction:column; padding: 80px 24px 24px; gap:4px; z-index:99; transform: translateX(100%); transition: transform .3s ease; box-shadow: var(--shadow-lg); }
    .header-nav.open { display:flex; transform: translateX(0); }
    .header-nav .nav-link { width:100%; padding: 14px; font-size:1rem; }
    .menu-toggle { display:flex; z-index:100; }
    .hero { padding: 48px 0 40px; }
    .hero-grid { grid-template-columns: 1fr; gap: 32px; }
    .hero-visual { display:none; }
    .hero-stats { gap: 20px; }
    .hero-stat .num { font-size: 1.4rem; }
    .section { padding: 40px 0; }
    .cat-grid { grid-template-columns: repeat(auto-fill, minmax(140px,1fr)); gap:12px; }
    .product-grid { grid-template-columns: repeat(auto-fill, minmax(160px,1fr)); gap: 14px; }
    .product-card-title { font-size: 0.9rem; }
    .product-card-desc { display:none; }
    .cta-band { padding: 32px 24px; }
    .footer-grid { grid-template-columns: 1fr; gap: 28px; }
    .cart-item { grid-template-columns: 64px 1fr auto; gap:12px; }
    .cart-item .cart-item-price { display:none; }
    .cart-item .qty-control { display:none; }
    .form-row { flex-direction:column; }
    .auth-card { padding: 28px 20px; }
    .product-info h1 { font-size: 1.5rem; }
    .product-info .price-now { font-size: 2rem; }
}
@media (max-width: 480px) {
    .container { padding: 0 16px; }
    .cat-grid { grid-template-columns: repeat(2, 1fr); }
    .product-grid { grid-template-columns: repeat(2,1fr); gap: 10px; }
    .product-card-body { padding: 12px; }
    .product-price .now { font-size: 1rem; }
    .stat-cards { grid-template-columns: 1fr; }
}