:root {
  --ink: #14151a;
  --paper: #faf9f6;
  --brand: #3846c9;
  --brand-light: #eef0ff;
  --gold: #b6903f;
  --muted: #6b6c74;
  --border: rgba(20,21,26,0.1);
  --radius: 12px;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Inter, Arial, sans-serif;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.5;
}
h1, h2, h3 { line-height: 1.2; margin: 0 0 0.5em; }
.container { max-width: 1120px; margin: 0 auto; padding: 0 20px; }
.muted { color: var(--muted); }
.small { font-size: 0.85em; }
a { color: var(--brand); text-decoration: none; }
a:hover { text-decoration: underline; }

/* Header */
.site-header { background: rgba(250,249,246,0.9); backdrop-filter: blur(6px); border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 10; }
.header-row { display: flex; align-items: center; justify-content: space-between; padding: 16px 0; }
.logo { font-weight: 700; font-size: 1.2rem; color: var(--ink); }
.logo span { color: var(--brand); }
.main-nav a { margin-left: 24px; font-weight: 500; color: var(--ink); }

/* Buttons */
.btn { display: inline-block; padding: 10px 18px; border-radius: 8px; font-weight: 600; border: none; cursor: pointer; text-decoration: none; }
.btn-primary { background: var(--ink); color: #fff; }
.btn-primary:hover { background: #000; text-decoration: none; }
.btn-secondary { background: #fff; color: var(--ink); border: 1px solid var(--border); }
.btn-lg { padding: 14px 26px; font-size: 1.05rem; }

/* Hero */
.hero { text-align: center; padding: 80px 0 60px; max-width: 720px; margin: 0 auto; }
.hero h1 { font-size: 2.4rem; }
.hero p { color: var(--muted); font-size: 1.1rem; margin-bottom: 28px; }

/* Sections */
.section { padding: 40px 0; }
.section-head { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 20px; }

/* Product grid / cards */
.product-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 20px; }
.product-card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; display: block; color: var(--ink); transition: box-shadow 0.15s; }
.product-card:hover { box-shadow: 0 8px 24px rgba(20,21,26,0.08); text-decoration: none; }
.product-cover { aspect-ratio: 3/4; background: var(--brand-light); position: relative; }
.product-cover img { width: 100%; height: 100%; object-fit: cover; }
.product-cover-placeholder { display: flex; align-items: center; justify-content: center; height: 100%; color: var(--brand); font-weight: 700; letter-spacing: 2px; }
.product-cover-placeholder.large { font-size: 2rem; }
.product-card-body { padding: 14px; }
.product-card-body h3 { font-size: 1rem; margin: 8px 0 4px; }
.price-row { display: flex; align-items: baseline; gap: 8px; margin-top: 10px; }
.price-row.large { font-size: 1.6rem; }
.strikethrough { text-decoration: line-through; color: var(--muted); font-size: 0.85em; }

/* Badges */
.badge { display: inline-block; background: rgba(20,21,26,0.06); color: var(--ink); font-size: 0.75rem; padding: 3px 10px; border-radius: 999px; font-weight: 600; }
.badge-gold { background: rgba(182,144,63,0.15); color: var(--gold); position: absolute; top: 10px; left: 10px; }

/* Categories */
.category-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 14px; }
.category-card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 20px; text-align: center; font-weight: 600; color: var(--ink); }
.category-card:hover { box-shadow: 0 4px 14px rgba(20,21,26,0.06); text-decoration: none; }

/* Benefits */
.benefits { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 24px; background: #fff; padding: 40px; border-radius: var(--radius); border: 1px solid var(--border); }

/* Filter bar */
.filter-bar { display: flex; flex-wrap: wrap; gap: 10px; margin: 20px 0; }
.filter-bar input, .filter-bar select { padding: 10px 12px; border: 1px solid var(--border); border-radius: 8px; font-size: 0.95rem; }

/* Product detail */
.product-detail { display: grid; grid-template-columns: 320px 1fr; gap: 40px; padding: 40px 0; }
.product-detail-cover img, .product-detail-cover .product-cover-placeholder { width: 100%; border-radius: var(--radius); }
.product-detail-cover .product-cover-placeholder.large { aspect-ratio: 3/4; background: var(--brand-light); display: flex; align-items: center; justify-content: center; color: var(--brand); }
.meta-row { display: flex; gap: 16px; margin: 8px 0 16px; }
.prose { margin-top: 30px; max-width: 640px; }
@media (max-width: 800px) { .product-detail { grid-template-columns: 1fr; } }

/* Forms */
.form-row { margin-bottom: 14px; }
.form-row label { display: block; font-weight: 600; margin-bottom: 6px; font-size: 0.9rem; }
input[type=text], input[type=email], input[type=password], input[type=number], textarea, select {
  width: 100%; padding: 10px 12px; border: 1px solid var(--border); border-radius: 8px; font-size: 0.95rem; font-family: inherit;
}

/* Cards */
.card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 30px; }
.centered-card { max-width: 480px; margin: 60px auto; text-align: center; }

/* Alerts */
.alert { padding: 12px 16px; border-radius: 8px; font-size: 0.9rem; margin-bottom: 16px; }
.alert-danger { background: #fdecea; color: #b3261e; }
.alert-warning { background: #fff6e5; color: #8a6100; }
.alert-success { background: #e8f7ee; color: #14803c; }

/* Footer */
.site-footer { background: #fff; border-top: 1px solid var(--border); margin-top: 60px; padding: 50px 0 20px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1.5fr; gap: 30px; }
.footer-grid h4 { font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.5px; margin-bottom: 10px; }
.footer-grid ul { list-style: none; padding: 0; margin: 0; }
.footer-grid li { margin-bottom: 8px; }
.newsletter-form { display: flex; gap: 8px; }
.newsletter-form input { flex: 1; }
.copyright { text-align: center; color: var(--muted); font-size: 0.8rem; margin-top: 40px; }
@media (max-width: 800px) { .footer-grid { grid-template-columns: 1fr 1fr; } }

/* Admin */
.admin-layout { display: flex; min-height: 100vh; }
.admin-sidebar { width: 220px; background: var(--ink); color: #fff; padding: 24px 16px; flex-shrink: 0; }
.admin-sidebar a { display: block; color: rgba(255,255,255,0.8); padding: 10px 12px; border-radius: 6px; font-weight: 500; }
.admin-sidebar a:hover, .admin-sidebar a.active { background: rgba(255,255,255,0.1); color: #fff; text-decoration: none; }
.admin-content { flex: 1; padding: 30px 40px; max-width: 1100px; }
.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 16px; margin: 20px 0 30px; }
.stat-card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 16px; }
.stat-card .stat-label { font-size: 0.8rem; color: var(--muted); }
.stat-card .stat-value { font-size: 1.4rem; font-weight: 700; margin-top: 4px; }
table.admin-table { width: 100%; border-collapse: collapse; background: #fff; border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
table.admin-table th { background: rgba(20,21,26,0.03); text-align: left; padding: 10px 14px; font-size: 0.8rem; color: var(--muted); }
table.admin-table td { padding: 10px 14px; border-top: 1px solid var(--border); font-size: 0.9rem; }
.login-box { max-width: 380px; margin: 100px auto; background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 30px; }