:root {
  --bg: #0b0d0f;
  --card: #12161b;
  --muted: #aab4c0;
  --text: #e6edf3;
  --brand: #9ae6b4;
  --accent: #6cb2eb;
  --danger: #ef7d7d;
  --shadow: rgba(0,0,0,0.4);
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; background: var(--bg); color: var(--text); font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
.container { max-width: 1100px; margin: 0 auto; padding: 24px; }
.header { position: sticky; top: 0; backdrop-filter: blur(8px); background: rgba(10,12,14,0.85); border-bottom: 1px solid #1f2933; z-index: 10; }
.header .row { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; letter-spacing: 0.5px; }
.brand .dot { width: 10px; height: 10px; background: var(--brand); border-radius: 50%; box-shadow: 0 0 12px var(--brand); }
.nav { display: flex; align-items: center; gap: 18px; }
.nav a { opacity: 0.9; }
.nav a:hover { opacity: 1; }
.btn { padding: 10px 14px; border: 1px solid #2a323c; border-radius: 10px; background: #141a20; cursor: pointer; color: var(--text); box-shadow: 0 2px 0 var(--shadow); }
.btn:hover { transform: translateY(-1px); }
.btn.primary { background: linear-gradient(135deg, var(--brand), var(--accent)); color: #0a0a0a; border: none; }
.hero { display: grid; grid-template-columns: 1.2fr 1fr; gap: 28px; align-items: center; padding: 40px 0; }
.hero h1 { font-size: 42px; line-height: 1.05; margin: 0 0 12px; }
.hero p { color: var(--muted); margin: 0 0 18px; }
.card-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 18px; }
.card { background: var(--card); border: 1px solid #1f2933; border-radius: 14px; overflow: hidden; display: flex; flex-direction: column; }
.card .content { padding: 14px; display: grid; gap: 8px; }
.price { display: flex; align-items: baseline; gap: 12px; }
.price .compare { color: var(--muted); text-decoration: line-through; font-size: 12px; }
.badge { display: inline-block; padding: 4px 8px; border-radius: 999px; font-size: 12px; color: #0a0a0a; background: var(--brand); }
.footer { border-top: 1px solid #1f2933; color: var(--muted); margin-top: 40px; }
.grid { display: grid; gap: 18px; }
.grid.two { grid-template-columns: 1fr 1fr; }
.grid.three { grid-template-columns: repeat(3, 1fr); }
.product { display: grid; grid-template-columns: 1.2fr 1fr; gap: 28px; }
.kicker { text-transform: uppercase; color: var(--muted); letter-spacing: 1px; font-size: 12px; }
.table { width: 100%; border-collapse: collapse; }
.table th, .table td { border-bottom: 1px solid #21303d; padding: 10px 0; text-align: left; font-size: 14px; }
.notice { background: #14212c; border: 1px solid #223243; padding: 12px; border-radius: 10px; color: var(--muted); }
.input, select { width: 100%; padding: 10px 12px; border-radius: 10px; border: 1px solid #2a323c; background: #0f1419; color: var(--text); }
.row { display: flex; gap: 12px; align-items: center; }
.qty { display: inline-flex; border: 1px solid #2a323c; border-radius: 10px; overflow: hidden; }
.qty button { border: none; background: #0f1419; padding: 8px 12px; color: var(--text); }
.qty input { width: 40px; text-align: center; border: none; background: #0f1419; color: var(--text); }
.upsell { border-top: 1px dashed #2a323c; padding-top: 16px; margin-top: 10px; }
.banner { padding: 10px 12px; border: 1px solid #22513a; background: #0e2017; border-radius: 10px; color: #b6f3cc; }
small.help { color: var(--muted); font-size: 12px; }
hr.soft { border: none; border-top: 1px solid #1f2933; margin: 16px 0; }
@media (max-width: 860px){
  .hero, .product, .grid.two { grid-template-columns: 1fr; }
}