:root {
  --bg: #f7f1e4;
  --ink: #2e2417;
  --accent: #7a5026;
  --accent-2: #b98b52;
  --card: #fffdf8;
  --border: #d8c7ab;
  --ok: #e7f7ea;
  --bad: #fdeaea;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: Georgia, 'Times New Roman', serif;
  background: var(--bg);
  color: var(--ink);
}
.container { width: min(1120px, calc(100% - 32px)); margin: 0 auto; }
.site-header, .site-footer { background: #ede2cb; border-bottom: 1px solid var(--border); }
.site-footer { border-top: 1px solid var(--border); border-bottom: 0; margin-top: 40px; }
.header-row { display: flex; justify-content: space-between; align-items: center; gap: 16px; padding: 18px 0; }
.brand { font-size: 2rem; font-weight: bold; color: var(--accent); text-decoration: none; }
.tagline { font-size: 0.95rem; opacity: 0.8; }
.site-nav a { margin-left: 16px; color: var(--ink); text-decoration: none; }
.main-content { padding: 28px 0; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 20px; }
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
  box-shadow: 0 4px 14px rgba(0,0,0,0.05);
}
.card-body { padding: 16px; }
.coin-thumb { width: 100%; height: 220px; object-fit: cover; background: #f2ead9; display: block; }
.btn {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  border: 0;
  border-radius: 10px;
  padding: 10px 16px;
  text-decoration: none;
  cursor: pointer;
}
.btn.secondary { background: #6c757d; }
.btn.light { background: var(--accent-2); }
.table { width: 100%; border-collapse: collapse; }
.table th, .table td { padding: 10px; border-bottom: 1px solid var(--border); text-align: left; vertical-align: top; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
label { display: block; margin-bottom: 6px; font-weight: bold; }
input[type="text"], input[type="email"], input[type="number"], input[type="password"], textarea, select {
  width: 100%; padding: 10px 12px; border: 1px solid var(--border); border-radius: 10px; background: #fff;
}
textarea { min-height: 120px; }
.flash { padding: 12px 14px; border-radius: 10px; margin-bottom: 18px; }
.flash.success { background: var(--ok); border: 1px solid #b4dbbd; }
.flash.error { background: var(--bad); border: 1px solid #efb8b8; }
.hero { padding: 24px; background: linear-gradient(135deg, #f7ecd8, #efe0c3); border: 1px solid var(--border); border-radius: 16px; margin-bottom: 24px; }
.price { font-size: 1.3rem; font-weight: bold; color: var(--accent); }
.gallery { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 12px; }
.gallery img { width: 100%; height: 180px; object-fit: cover; border-radius: 12px; border: 1px solid var(--border); background: #f5efe3; }
.checkout-grid { display: grid; grid-template-columns: 2fr 1fr; gap: 24px; }
@media (max-width: 800px) {
  .header-row, .form-row, .checkout-grid { grid-template-columns: 1fr; display: grid; }
  .site-nav a { margin-left: 0; margin-right: 12px; }
}