:root {
  --bg: #fbfaf8;
  --fg: #1c1917;
  --muted: #78716c;
  --line: #e7e5e4;
  --card: #ffffff;
  --accent: #d64520;
  --accent-fg: #ffffff;
  --ok: #15803d;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1a1817;
    --fg: #f5f5f4;
    --muted: #a8a29e;
    --line: #37322f;
    --card: #242020;
    --accent: #f2643c;
    --accent-fg: #1a1817;
    --ok: #4ade80;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 16px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

a { color: inherit; }

.wrap {
  max-width: 960px;
  margin: 0 auto;
  padding: 24px 16px 64px;
}

/* Шапка */
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 16px;
  background: var(--card);
  border-bottom: 1px solid var(--line);
}
.brand { font-weight: 700; font-size: 1.15rem; text-decoration: none; letter-spacing: -0.01em; }
.cart-link { text-decoration: none; font-weight: 500; }
.badge {
  display: inline-block;
  min-width: 22px;
  padding: 1px 7px;
  border-radius: 999px;
  background: var(--accent);
  color: var(--accent-fg);
  font-size: 0.8rem;
  text-align: center;
}

h1 { font-size: 1.6rem; letter-spacing: -0.02em; }
h2 { font-size: 1.2rem; margin-top: 32px; }

/* Категории */
.cats { display: flex; flex-wrap: wrap; gap: 8px; margin: 16px 0 8px; }
.cats a {
  padding: 6px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--card);
  text-decoration: none;
  font-size: 0.9rem;
}

/* Сетка товаров */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 16px;
}
.card {
  display: flex;
  flex-direction: column;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  overflow: hidden;
  padding-bottom: 12px;
}
.card a { text-decoration: none; }
.card img { width: 100%; aspect-ratio: 16 / 10; object-fit: cover; display: block; }
.card h3 { margin: 12px 12px 4px; font-size: 1rem; }
.card .price { margin: 0 12px 10px; color: var(--muted); }
.card form { margin: auto 12px 0; }
.card-out { opacity: 0.55; }
.out { margin: 0 12px; color: var(--muted); font-size: 0.9rem; }

button, .btn {
  display: inline-block;
  padding: 10px 16px;
  border: 0;
  border-radius: 10px;
  background: var(--accent);
  color: var(--accent-fg);
  font: inherit;
  font-weight: 600;
  text-decoration: none;
  text-align: center;
  cursor: pointer;
}
.card button { width: 100%; }
.btn.ghost { background: transparent; color: var(--fg); border: 1px solid var(--line); }
button.link {
  background: none;
  color: var(--muted);
  padding: 4px 0;
  font-weight: 400;
  text-decoration: underline;
}

/* Карточка товара */
.back { margin-bottom: 8px; }
.product { display: grid; grid-template-columns: 1fr; gap: 24px; }
@media (min-width: 720px) { .product { grid-template-columns: 1fr 1fr; align-items: start; } }
.product img { width: 100%; border-radius: 14px; }
.price.big { font-size: 1.5rem; color: var(--fg); font-weight: 600; }
.desc { color: var(--muted); }
.sku, .left { color: var(--muted); font-size: 0.9rem; }
.add-form { display: flex; align-items: flex-end; gap: 12px; margin: 16px 0 4px; }
.add-form input { width: 88px; }

/* Формы */
label { display: block; margin-bottom: 14px; font-size: 0.9rem; color: var(--muted); }
input, textarea {
  display: block;
  width: 100%;
  margin-top: 6px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--card);
  color: var(--fg);
  font: inherit;
}

/* Корзина и заказ */
.lines { width: 100%; border-collapse: collapse; margin-top: 16px; }
.lines td { padding: 12px 8px; border-bottom: 1px solid var(--line); vertical-align: middle; }
.lines .thumb { width: 72px; }
.lines .thumb img { width: 64px; height: 48px; object-fit: cover; border-radius: 8px; display: block; }
.lines .unit { display: block; color: var(--muted); font-size: 0.85rem; }
.lines .qty form { display: flex; flex-direction: column; align-items: flex-start; gap: 2px; }
.lines .qty input { width: 72px; margin: 0; }
.lines .sum { text-align: right; white-space: nowrap; font-weight: 600; }
.total { text-align: right; font-size: 1.1rem; margin-top: 16px; }
.actions { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; margin-top: 20px; }
.empty { color: var(--muted); }

.checkout { display: grid; gap: 28px; grid-template-columns: 1fr; }
@media (min-width: 720px) { .checkout { grid-template-columns: 3fr 2fr; } }
.summary {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 16px 18px;
}
.summary h2 { margin-top: 0; font-size: 1rem; }
.summary ul { list-style: none; margin: 0; padding: 0; }
.summary li { display: flex; justify-content: space-between; gap: 12px; padding: 6px 0; font-size: 0.92rem; }

.errors { background: var(--card); border: 1px solid var(--accent); border-radius: 12px; padding: 12px 16px 12px 32px; }
.error { color: var(--accent); }

.order .lead { color: var(--muted); }
.order.paid h1 { color: var(--ok); }
.details { display: grid; grid-template-columns: auto 1fr; gap: 6px 16px; margin: 20px 0; font-size: 0.94rem; }
.details dt { color: var(--muted); }
.details dd { margin: 0; }

/* Оплата */
.pay { max-width: 420px; margin: 0 auto; text-align: center; }
.mock-note {
  background: var(--card);
  border: 1px dashed var(--accent);
  border-radius: 10px;
  padding: 10px 14px;
  color: var(--muted);
  font-size: 0.9rem;
}
.amount { font-size: 2rem; font-weight: 700; margin: 8px 0 24px; }
.pay .btn { width: 100%; padding: 14px; font-size: 1.05rem; }

.site-footer { border-top: 1px solid var(--line); padding: 20px 16px; color: var(--muted); font-size: 0.88rem; text-align: center; }
.site-footer p { margin: 0; }