:root {
  --bg: #f7f8fb;
  --card: #ffffff;
  --text: #1a1b23;
  --muted: #65657a;
  --accent: #6c63ff;
  --danger: #e5484d;
  --shadow: 0 10px 30px rgba(0,0,0,0.15);
  --radius: 14px;
  --border: 1px solid rgba(0,0,0,0.08);
}

body.dark {
  --bg: #0f0f12;
  --card: #17171c;
  --text: #e9e9ef;
  --muted: #a7a7b4;
  --accent: #6c63ff;
  --danger: #ff5c70;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: system-ui, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

.container { width: min(1200px, 92%); margin: 0 auto; }

.site-header {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 1rem;
  align-items: center;
  padding: 1rem 0;
}
.byline { color: var(--muted); margin: .25rem 0 0; }

.controls {
  display: flex;
  gap: .5rem;
  flex-wrap: wrap;
}
.controls select,
.controls input,
#darkToggle {
  padding: .6rem .8rem;
  border: var(--border);
  border-radius: 12px;
  background: var(--card);
  color: var(--text);
  cursor: pointer;
}

.section-head {
  display: flex;
  justify-content: space-between;
  margin-top: .75rem;
}
.muted { color: var(--muted); }

.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1rem;
  margin: 1rem 0 2rem;
}
.card {
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
  transition: transform .2s ease, box-shadow .2s ease;
}
.card:hover { transform: translateY(-4px); box-shadow: 0 18px 40px rgba(0,0,0,.25); }
.card img { width: 100%; height: 150px; object-fit: cover; display: block; }
.card .card-body { padding: 1rem; display: grid; gap: .5rem; }
.card h3 { margin: 0; font-size: 1rem; }
.badge { font-size: .75rem; padding: .2rem .5rem; border-radius: 999px; background: #f1f1f4; color: var(--muted); }
.price { font-weight: 700; }

.btn {
  padding: .6rem .8rem;
  border: none;
  border-radius: 12px;
  background: var(--accent);
  color: white;
  cursor: pointer;
}
.btn:hover { filter: brightness(1.05); }
.btn.danger { background: var(--danger); }

.cart-section { margin-bottom: 3rem; }
.table-wrap { overflow-x: auto; background: var(--card); border-radius: var(--radius); box-shadow: var(--shadow); }
.cart-table { width: 100%; border-collapse: collapse; min-width: 660px; }
.cart-table th, .cart-table td { padding: .9rem .8rem; border-bottom: 1px solid rgba(0,0,0,.07); text-align: left; }
.cart-table thead th { background: #f2f2f8; color: var(--muted); }
.cart-table tfoot td { background: #fafafe; font-weight: 800; }
.grand-label { text-align: right; }
.grand-value { font-size: 1.1rem; }
.qty-input { width: 72px; padding: .4rem; border-radius: 8px; border: 1px solid rgba(0,0,0,.1); }

body.dark .cart-table thead th { background: #2a2a32; }
body.dark .cart-table tfoot td { background: #222229; }

.site-footer { text-align: center; padding: 2rem 1rem 3rem; color: var(--muted); }

@media (max-width: 640px) {
  .site-header { grid-template-columns: 1fr; }
}