:root {
  --bg: #f5f7fb;
  --surface: #ffffff;
  --text: #20232a;
  --muted: #6b7280;
  --primary: #ff6b35;
  --primary-dark: #e55a2b;
  --success: #1f9d55;
  --border: #e5e7eb;
  --shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: "Segoe UI", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

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

.page {
  padding: 32px 0 48px;
}

.header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}

.header__top {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 14px 0;
}

.logo {
  text-decoration: none;
  color: var(--primary);
  font-size: 1.4rem;
  font-weight: 700;
}

.search-form {
  display: flex;
  flex: 1;
  max-width: 520px;
}

.search-form input {
  width: 100%;
  border: 2px solid var(--border);
  border-right: 0;
  border-radius: 999px 0 0 999px;
  padding: 10px 14px;
}

.search-form button {
  border: 0;
  border-radius: 0 999px 999px 0;
  padding: 10px 16px;
  background: var(--primary);
  color: #fff;
  cursor: pointer;
}

.actions {
  margin-left: auto;
  display: flex;
  gap: 8px;
}

.btn-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 8px 12px;
  background: #fff;
}

.badge {
  min-width: 22px;
  height: 22px;
  border-radius: 999px;
  background: var(--primary);
  color: #fff;
  display: inline-flex;
  justify-content: center;
  align-items: center;
  font-size: 0.75rem;
  font-weight: 700;
}

.nav {
  display: flex;
  gap: 8px;
  padding: 0 0 12px;
}

.nav a {
  text-decoration: none;
  color: var(--text);
  padding: 8px 14px;
  border-radius: 8px;
}

.nav a.active,
.nav a:hover {
  background: #fff0ea;
  color: var(--primary-dark);
}

.hero {
  background: linear-gradient(135deg, #667eea, #764ba2);
  color: #fff;
  border-radius: 18px;
  padding: 42px;
}

.hero h1 {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  margin-bottom: 8px;
}

.hero p {
  opacity: 0.95;
  margin-bottom: 22px;
}

.btn-primary {
  border: 0;
  border-radius: 12px;
  padding: 12px 18px;
  background: var(--primary);
  color: #fff;
  text-decoration: none;
  cursor: pointer;
  font-weight: 600;
}

.btn-secondary {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px 18px;
  background: #fff;
  color: var(--text);
  text-decoration: none;
  cursor: pointer;
}

.section-title {
  margin: 28px 0 16px;
  font-size: 1.6rem;
}

.grid {
  display: grid;
  gap: 18px;
}

.products-grid {
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
}

.card {
  background: var(--surface);
  border-radius: 14px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.product-card img {
  width: 100%;
  height: 210px;
  object-fit: cover;
  border-radius: 14px 14px 0 0;
}

.product-content {
  padding: 12px;
}

.product-title {
  font-weight: 600;
  margin-bottom: 6px;
}

.muted {
  color: var(--muted);
  font-size: 0.9rem;
}

.price {
  margin-top: 8px;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--success);
}

.layout {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 18px;
}

.panel {
  padding: 16px;
}

.filters .group {
  margin-bottom: 16px;
}

.filters h4 {
  margin-bottom: 8px;
}

.filters label {
  display: block;
  margin-bottom: 6px;
  color: var(--muted);
}

.toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}

.toolbar select,
.toolbar input {
  padding: 9px 11px;
  border-radius: 10px;
  border: 1px solid var(--border);
}

.cart-layout {
  display: grid;
  grid-template-columns: 1fr 360px;
  gap: 18px;
}

.cart-item {
  display: grid;
  grid-template-columns: 90px 1fr auto;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
}

.cart-item img {
  width: 90px;
  height: 90px;
  border-radius: 10px;
  object-fit: cover;
}

.qty {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.qty button {
  width: 28px;
  height: 28px;
  border: 0;
  border-radius: 8px;
  background: var(--primary);
  color: #fff;
  cursor: pointer;
}

.summary-row {
  display: flex;
  justify-content: space-between;
  margin: 8px 0;
  color: var(--muted);
}

.summary-total {
  border-top: 1px solid var(--border);
  margin-top: 10px;
  padding-top: 10px;
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text);
}

.brands-grid {
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
}

.brand-card {
  padding: 18px;
  text-align: center;
}

.sale-card {
  overflow: hidden;
}

.sale-card img {
  width: 100%;
  height: 180px;
  object-fit: cover;
}

.sale-content {
  padding: 12px;
}

.footer {
  margin-top: 24px;
  border-top: 1px solid var(--border);
  color: var(--muted);
  padding: 24px 0 34px;
  text-align: center;
}

.admin-layout {
  display: grid;
  grid-template-columns: 420px 1fr;
  gap: 18px;
}

.form-grid {
  display: grid;
  gap: 10px;
}

.form-grid input,
.form-grid textarea {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px;
  font-family: inherit;
}

.table-wrap {
  overflow: auto;
}

.admin-table {
  width: 100%;
  border-collapse: collapse;
}

.admin-table th,
.admin-table td {
  border-bottom: 1px solid var(--border);
  padding: 10px;
  text-align: left;
  vertical-align: middle;
}

.admin-thumb {
  width: 54px;
  height: 54px;
  border-radius: 8px;
  object-fit: cover;
}

@media (max-width: 920px) {
  .layout,
  .cart-layout,
  .admin-layout {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 760px) {
  .header__top {
    flex-wrap: wrap;
  }
  .search-form {
    order: 3;
    min-width: 100%;
  }
  .nav {
    flex-wrap: wrap;
  }
}