:root {
  --bg: #f4f6f8;
  --card: #fff;
  --text: #1a1d21;
  --muted: #5c6570;
  --accent: #0d6efd;
  --border: #e2e6ea;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.45;
}
.top-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1rem;
  background: var(--card);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}
.logo { font-weight: 700; color: var(--text); text-decoration: none; }
.top-actions { display: flex; gap: 0.5rem; align-items: center; }
.main { max-width: 960px; margin: 0 auto; padding: 1rem; padding-bottom: 2rem; }
.btn {
  display: inline-block;
  padding: 0.5rem 1rem;
  border-radius: 8px;
  border: none;
  background: var(--accent);
  color: #fff;
  text-decoration: none;
  cursor: pointer;
  font-size: 1rem;
}
.btn-ghost { background: transparent; color: var(--accent); border: 1px solid var(--border); }
.btn-block { width: 100%; text-align: center; }
.card {
  background: var(--card);
  border-radius: 12px;
  padding: 1rem;
  margin-bottom: 0.75rem;
  border: 1px solid var(--border);
}
.grid { display: grid; gap: 0.75rem; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); }
.product-card { cursor: pointer; }
.product-card h3 { font-size: 0.95rem; margin: 0.5rem 0 0.25rem; }
.price { font-weight: 700; color: var(--accent); }
.muted { color: var(--muted); font-size: 0.875rem; }
.search-row { display: flex; gap: 0.5rem; margin-bottom: 1rem; }
.search-row input {
  flex: 1;
  padding: 0.6rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 1rem;
}
.form label { display: block; margin: 0.75rem 0 0.25rem; font-size: 0.875rem; }
.form input, .form textarea {
  width: 100%;
  padding: 0.6rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 1rem;
}
.error { color: #b02a37; }
#cart-badge:not(:empty)::before { content: "("; }
#cart-badge:not(:empty)::after { content: ")"; }