:root {
    --ink: #0f172a; --muted: #475569; --soft: #64748b; --label: #1e293b;
    --line: rgba(15,23,42,0.08); --blue: #2563eb; --violet: #7c3aed;
    --grad: linear-gradient(135deg, #2563eb, #7c3aed);
    --grad-dark: linear-gradient(135deg, #111827 0%, #1e3a8a 55%, #4c1d95 100%);
}
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
    font-family: 'Plus Jakarta Sans', 'Segoe UI', sans-serif; margin: 0; color: var(--ink); overflow-x: hidden;
    background:
        radial-gradient(40% 35% at 15% 10%, rgba(37,99,235,0.10) 0%, transparent 70%),
        radial-gradient(40% 40% at 90% 90%, rgba(124,58,237,0.10) 0%, transparent 70%),
        #eef2f7;
    background-attachment: fixed;
}
img { max-width: 100%; }
@keyframes sbUp { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: none; } }

.sb-hero { text-align: center; margin: clamp(26px, 5vw, 46px) auto clamp(22px, 4vw, 34px); padding: 0 20px; max-width: 760px; animation: sbUp .5s ease both; }
.sb-chip {
    display: inline-flex; align-items: center; gap: 8px; margin-bottom: 12px;
    padding: 6px 14px 6px 10px; border-radius: 999px;
    background: rgba(37,99,235,0.08); border: 1px solid rgba(37,99,235,0.18);
    color: #1d4ed8; font-size: 11px; font-weight: 800; letter-spacing: 1.5px; text-transform: uppercase;
}
.sb-chip i.dot { width: 7px; height: 7px; border-radius: 50%; background: var(--grad); display: inline-block; }
.sb-title { font-size: clamp(28px, 5vw, 42px); font-weight: 800; letter-spacing: -1px; line-height: 1.15; margin: 0; color: var(--ink); }
.sb-title .g { background: var(--grad); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.sb-sub { font-size: clamp(14px, 2vw, 16px); color: var(--muted); margin: 10px auto 0; line-height: 1.6; }

.sb-card {
    background: rgba(255,255,255,0.92); border: 1px solid rgba(255,255,255,0.7); border-radius: 22px;
    box-shadow: 0 1px 2px rgba(15,23,42,0.04), 0 16px 36px rgba(15,23,42,0.07);
}
.sb-ico {
    width: 40px; height: 40px; border-radius: 12px; display: inline-grid; place-items: center; flex-shrink: 0;
    color: #fff; background: var(--grad); box-shadow: 0 8px 18px rgba(37,99,235,.28); font-size: 16px;
}

.sb-footer { margin-top: auto; padding: 30px 20px; text-align: center; background: #0b0b0f; color: rgba(255,255,255,0.7); font-size: 13.5px;
    background-image: radial-gradient(60% 140% at 10% 0%, rgba(37,99,235,0.25) 0%, transparent 60%), radial-gradient(60% 140% at 100% 100%, rgba(124,58,237,0.25) 0%, transparent 60%); }
.sb-footer .brand { font-weight: 800; font-size: 18px; letter-spacing: 3px; color: #fff; margin-bottom: 10px; }
.sb-footer .social-links { margin-bottom: 12px; }
.sb-footer .social-links a {
    width: 42px; height: 42px; border-radius: 12px; display: inline-grid; place-items: center; margin: 0 6px;
    color: #fff; background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.14); font-size: 18px; transition: .2s; text-decoration: none;
}
.sb-footer .social-links a:hover { background: #1877f2; border-color: #1877f2; transform: translateY(-2px); }
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; } }

.container { max-width: 1240px; margin: 0 auto; padding: 0 24px 50px; }
.category-header {
    display: flex; align-items: center; gap: 12px; margin: 40px 0 18px;
    font-size: 20px; font-weight: 800; letter-spacing: -0.3px; color: var(--ink);
}
.category-header::after { content: ''; flex: 1; height: 1px; background: linear-gradient(90deg, rgba(15,23,42,0.14), transparent); }
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(280px, 100%), 1fr)); gap: 22px; }
.card {
    position: relative; display: flex; flex-direction: column; min-width: 0; overflow: hidden;
    background: #fff; border: 1px solid var(--line); border-radius: 22px;
    box-shadow: 0 1px 2px rgba(15,23,42,0.04), 0 14px 32px rgba(15,23,42,0.07);
    transition: transform .25s, box-shadow .25s; animation: sbUp .5s ease both;
}
.card:hover { transform: translateY(-4px); box-shadow: 0 2px 4px rgba(15,23,42,0.05), 0 22px 44px rgba(15,23,42,0.13); }
.card img { width: 100%; aspect-ratio: 4 / 3; height: auto; object-fit: cover; display: block; background: #e2e8f0; transition: transform .5s; }
.card:hover img { transform: scale(1.04); }
.qty-badge {
    position: absolute; top: 14px; right: 14px; z-index: 2;
    padding: 6px 12px; border-radius: 999px; font-size: 12px; font-weight: 800; color: #fff;
    background: rgba(15,23,42,0.7); backdrop-filter: blur(6px); border: 1px solid rgba(255,255,255,0.2);
}
.card-content { padding: 18px 20px 20px; flex: 1; background: #fff; }
.card-content h3 { margin: 0 0 12px; font-size: 18px; font-weight: 800; letter-spacing: -0.2px; color: var(--ink); overflow-wrap: anywhere; }
.specs-table { width: 100%; border-collapse: separate; border-spacing: 0; font-size: 13.5px; background: #f8fafc; border: 1px solid var(--line); border-radius: 14px; overflow: hidden; }
.specs-table td { padding: 9px 12px; border-bottom: 1px solid var(--line); vertical-align: top; overflow-wrap: anywhere; }
.specs-table tr:last-child td { border-bottom: none; }
.specs-table tr { display: block; padding: 9px 12px; border-bottom: 1px solid var(--line); }
.specs-table tr:last-child { border-bottom: none; }
.specs-table td { display: block; padding: 0; border: none; }
.specs-table td:first-child { font-size: 11px; font-weight: 800; color: var(--soft); text-transform: uppercase; letter-spacing: .5px; margin-bottom: 2px; }
.specs-table td:last-child { color: var(--label); font-weight: 600; }
@media (max-width: 600px) {
    .container { padding: 0 14px 40px; }
    .category-header { font-size: 17px; margin-top: 30px; }
}