:root {
  --color-primary: #2e7d32;
  --color-primary-dark: #1b5e20;
  --color-accent: #ffb300;
  --color-bg: #f7f7f4;
  --color-surface: #ffffff;
  --color-text: #1a1a1a;
  --color-muted: #6b7280;
  --color-border: #e5e7eb;
  --radius: 10px;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04), 0 1px 3px rgba(0, 0, 0, 0.06);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.5;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 20px;
}

.site-header {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 10;
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 20px;
}
.logo {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--color-primary);
  text-decoration: none;
}
.site-header nav a {
  margin-left: 18px;
  text-decoration: none;
  color: var(--color-text);
  font-weight: 500;
}
.site-header nav a.active { color: var(--color-primary); }

.cart-link { position: relative; }
.cart-badge {
  display: inline-block;
  min-width: 20px;
  padding: 0 6px;
  margin-left: 4px;
  background: var(--color-primary);
  color: #fff;
  border-radius: 999px;
  font-size: 0.78rem;
  text-align: center;
  line-height: 20px;
}

.hero {
  padding: 36px 0 12px;
}
.hero h1 {
  margin: 0 0 8px;
  font-size: 2rem;
}
.hero p {
  margin: 0;
  color: var(--color-muted);
}

h2 { margin-top: 32px; }

.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 16px;
  margin: 16px 0 40px;
}
.product-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 16px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  box-shadow: var(--shadow-sm);
}
.product-image {
  font-size: 3rem;
  width: 100%;
  text-align: center;
  margin-bottom: 8px;
}
.product-name {
  margin: 0 0 4px;
  font-size: 1rem;
}
.product-price {
  margin: 0 0 12px;
  font-weight: 600;
  color: var(--color-primary-dark);
}

.btn {
  display: inline-block;
  padding: 10px 16px;
  border-radius: 8px;
  border: 1px solid transparent;
  font-size: 0.95rem;
  font-weight: 500;
  cursor: pointer;
  text-decoration: none;
  text-align: center;
  transition: background 0.15s ease, border-color 0.15s ease;
}
.btn-primary {
  background: var(--color-primary);
  color: #fff;
}
.btn-primary:hover { background: var(--color-primary-dark); }
.btn-ghost {
  background: transparent;
  color: var(--color-muted);
  border-color: var(--color-border);
}
.btn-ghost:hover { border-color: var(--color-muted); color: var(--color-text); }
.btn-block { display: block; width: 100%; margin-top: 12px; }

.cart-layout {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 24px;
  margin: 16px 0 40px;
}
@media (max-width: 760px) {
  .cart-layout { grid-template-columns: 1fr; }
}

.cart-items { display: flex; flex-direction: column; gap: 12px; }

.cart-item {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 14px;
  display: grid;
  grid-template-columns: 64px 1fr auto auto auto;
  align-items: center;
  gap: 14px;
  box-shadow: var(--shadow-sm);
}
.cart-item-image {
  font-size: 2.4rem;
  text-align: center;
  width: 64px;
}
.cart-item-info h3 { margin: 0 0 2px; font-size: 1rem; }
.cart-item-price { margin: 0; color: var(--color-muted); font-size: 0.9rem; }
.cart-item-total {
  font-weight: 600;
  min-width: 80px;
  text-align: right;
}

.qty-control {
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  overflow: hidden;
}
.qty-btn {
  background: var(--color-surface);
  border: none;
  width: 32px;
  height: 36px;
  font-size: 1.1rem;
  cursor: pointer;
}
.qty-btn:hover { background: var(--color-bg); }
.qty-input {
  width: 48px;
  height: 36px;
  border: none;
  border-left: 1px solid var(--color-border);
  border-right: 1px solid var(--color-border);
  text-align: center;
  font-size: 0.95rem;
  -moz-appearance: textfield;
}
.qty-input::-webkit-outer-spin-button,
.qty-input::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }

.remove-btn {
  background: transparent;
  border: none;
  color: var(--color-muted);
  font-size: 1rem;
  cursor: pointer;
  padding: 6px 8px;
  border-radius: 6px;
}
.remove-btn:hover { background: #fee2e2; color: #b91c1c; }

@media (max-width: 600px) {
  .cart-item {
    grid-template-columns: 56px 1fr auto;
    grid-template-areas:
      "image info remove"
      "qty   qty  total";
  }
  .cart-item-image { grid-area: image; }
  .cart-item-info  { grid-area: info; }
  .remove-btn      { grid-area: remove; align-self: start; }
  .qty-control     { grid-area: qty; }
  .cart-item-total { grid-area: total; }
}

.cart-summary {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 18px;
  height: fit-content;
  box-shadow: var(--shadow-sm);
}
.cart-summary h2 { margin-top: 0; font-size: 1.15rem; }
.summary-list { margin: 0; padding: 0; }
.summary-list > div {
  display: flex;
  justify-content: space-between;
  padding: 6px 0;
}
.summary-list dt, .summary-list dd { margin: 0; }
.summary-total {
  border-top: 1px solid var(--color-border);
  margin-top: 6px;
  padding-top: 10px !important;
  font-weight: 700;
  font-size: 1.05rem;
}

.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--color-muted);
}
.empty-state .btn { margin-top: 12px; }

.site-footer {
  border-top: 1px solid var(--color-border);
  padding: 20px 0;
  color: var(--color-muted);
  font-size: 0.9rem;
  text-align: center;
}