:root {
  --bg: #0f1115;
  --card: #161a22;
  --muted: #8b93a7;
  --text: #e6e9ef;
  --accent: #4f8cff;
  --accent-2: #22c55e;
  --danger: #ef4444;
  --border: #232838;
  --shadow: 0 8px 24px rgba(0,0,0,0.35);
  --radius: 14px;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; font-family: 'Inter', system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif; background: var(--bg); color: var(--text); }

.header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 20px; border-bottom: 1px solid var(--border); position: sticky; top: 0; background: rgba(15,17,21,0.9); backdrop-filter: blur(8px); z-index: 10;
}
.header__left { display: flex; align-items: center; gap: 12px; }
.logo { width: 44px; height: 44px; border-radius: 8px; object-fit: cover; background: #111; }
.brand h1 { margin: 0; font-size: 18px; font-weight: 700; }
.tagline { margin: 2px 0 0; font-size: 12px; color: var(--muted); }

.header__right { display: flex; align-items: center; gap: 12px; }
.searchbar { display: flex; align-items: center; gap: 8px; background: var(--card); border: 1px solid var(--border); padding: 8px 10px; border-radius: 10px; }
.searchbar input { background: transparent; border: none; outline: none; color: var(--text); width: 220px; }
.searchbar button { background: var(--accent); border: none; color: #fff; padding: 8px 10px; border-radius: 8px; cursor: pointer; }
.cart { background: var(--card); border: 1px solid var(--border); padding: 8px 12px; border-radius: 10px; cursor: pointer; }

.toolbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 20px; border-bottom: 1px solid var(--border);
}
.filters { display: flex; gap: 10px; }
.filters select { background: var(--card); border: 1px solid var(--border); color: var(--text); padding: 8px 10px; border-radius: 10px; }
.view-toggle button { background: var(--card); border: 1px solid var(--border); color: var(--text); padding: 8px 12px; border-radius: 10px; cursor: pointer; }
.view-toggle .active { border-color: var(--accent); color: #fff; }

.container { display: grid; grid-template-columns: 280px 1fr; gap: 16px; padding: 16px 20px; }
.sidebar { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px; box-shadow: var(--shadow); }
.sidebar h3 { margin: 0 0 12px; }
.filter-block { margin-bottom: 14px; }
.filter-label { display: block; margin-bottom: 6px; color: var(--muted); }
.price-range { display: flex; gap: 8px; }
.price-range input { width: 100%; background: #12151c; border: 1px solid var(--border); color: var(--text); padding: 8px; border-radius: 8px; }
.price-range button { background: var(--accent); border: none; color: #fff; padding: 8px 10px; border-radius: 8px; cursor: pointer; }
.clear-btn { width: 100%; background: #1b2130; border: 1px solid var(--border); color: var(--text); padding: 10px; border-radius: 10px; cursor: pointer; }

.products { min-height: 60vh; }
.results-meta { margin: 6px 0 12px; color: var(--muted); }

.product-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px;
}
.product-list {
  display: grid; grid-template-columns: 1fr; gap: 12px;
}

.card, .list-item {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow);
}
.card .thumb, .list-item .thumb { position: relative; background: #0c0f14; }
.card .thumb img, .list-item .thumb img { width: 100%; height: 180px; object-fit: cover; display: block; }
.list-item { display: grid; grid-template-columns: 220px 1fr; }
.list-item .thumb img { height: 100%; }

.badge {
  position: absolute; top: 10px; left: 10px; background: #111; color: #fff; border: 1px solid var(--border);
  padding: 4px 8px; border-radius: 999px; font-size: 12px;
}

.info { padding: 12px; }
.title { margin: 0 0 6px; font-size: 16px; }
.brand { margin: 0 0 8px; color: var(--muted); }
.desc { margin: 0 0 10px; color: #cbd1e2; font-size: 14px; min-height: 32px; }

.meta { display: flex; align-items: center; justify-content: space-between; margin-bottom: 10px; }
.price { display: flex; align-items: center; gap: 8px; }
.mrp { color: var(--muted); text-decoration: line-through; }
.sale { color: var(--accent-2); font-weight: 700; }
.off { color: #f59e0b; font-weight: 600; }
.rating { color: #ffd166; }

.actions { display: flex; align-items: center; gap: 8px; }
.btn { background: #1b2130; border: 1px solid var(--border); color: var(--text); padding: 8px 12px; border-radius: 10px; cursor: pointer; }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.stock.in { color: var(--accent-2); margin-left: auto; }
.stock.out { color: var(--danger); margin-left: auto; }

.empty-state { text-align: center; padding: 40px; background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); }

.footer { border-top: 1px solid var(--border); padding: 16px 20px; }
.footer__content { color: var(--muted); display: flex; align-items: center; justify-content: space-between; }

.modal { position: fixed; inset: 0; display: none; }
.modal.open { display: block; }
.modal__backdrop { position: absolute; inset: 0; background: rgba(0,0,0,0.6); }
.modal__dialog {
  position: relative; z-index: 2; max-width: 900px; margin: 60px auto; background: var(--card);
  border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow); overflow: hidden;
}
.modal__close { position: absolute; top: 10px; right: 10px; background: #1b2130; border: 1px solid var(--border); color: var(--text); padding: 6px 10px; border-radius: 8px; cursor: pointer; z-index: 3; }
.modal__content { display: grid; grid-template-columns: 1fr 1fr; }
.modal__image img { width: 100%; height: 100%; object-fit: cover; }
.modal__details { padding: 16px; }
.specs { margin: 10px 0; padding-left: 18px; color: #cbd1e2; }
.price-block { display: flex; align-items: center; gap: 10px; margin: 12px 0; }
.modal__actions { display: flex; gap: 10px; }

.cart-drawer {
  position: fixed; right: -420px; top: 0; width: 420px; height: 100vh; background: var(--card);
  border-left: 1px solid var(--border); box-shadow: var(--shadow); transition: right 0.25s ease; z-index: 20;
}
.cart-drawer.open { right: 0; }
.cart-backdrop { position: fixed; inset: 0; background: rgba(0,0,0,0.5); display: none; z-index: 15; }
.cart-backdrop.show { display: block; }
.cart-drawer__header { display: flex; align-items: center; justify-content: space-between; padding: 12px; border-bottom: 1px solid var(--border); }
.cart-drawer__items { padding: 12px; display: grid; gap: 10px; max-height: calc(100vh - 200px); overflow: auto; }
.cart-item { display: grid; grid-template-columns: 64px 1fr 32px; gap: 10px; align-items: center; background: #12151c; border: 1px solid var(--border); border-radius: 10px; padding: 8px; }
.cart-item img { width: 64px; height: 64px; object-fit: cover; border-radius: 8px; }
.cart-item__meta { display: flex; align-items: center; justify-content: space-between; }
.qty { display: flex; align-items: center; gap: 8px; }
.qty button { background: #1b2130; border: 1px solid var(--border); color: var(--text); padding: 4px 8px; border-radius: 8px; cursor: pointer; }
.remove { background: transparent; border: none; color: var(--danger); font-size: 18px; cursor: pointer; }
.cart-drawer__footer { position: absolute; bottom: 0; left: 0; right: 0; padding: 12px; border-top: 1px solid var(--border); background: var(--card); }
.cart-total { display: flex; align-items: center; justify-content: space-between; margin-bottom: 10px; }
.checkout-btn { width: 100%; background: var(--accent); border: none; color: #fff; padding: 10px; border-radius: 10px; cursor: pointer; }

@media (max-width: 1200px) {
  .product-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 900px) {
  .container { grid-template-columns: 1fr; }
  .product-grid { grid-template-columns: repeat(2, 1fr); }
  .list-item { grid-template-columns: 160px 1fr; }
  .modal__content { grid-template-columns: 1fr; }
}
@media (max-width: 600px) {
  .product-grid { grid-template-columns: 1fr; }
  .searchbar input { width: 140px; }
}
.call-btn {
  background: #22c55e;
  border: 1px solid #1f9f4f;
  color: #fff;
  padding: 8px 12px;
  border-radius: 10px;
  text-decoration: none;
  display: inline-block;
}
.call-btn:hover {
  background: #1f9f4f;
}