* { box-sizing: border-box; }
body { margin: 0; font-family: Arial, sans-serif; background: #f7f9fc; color: #111; }
.container { width: min(1100px, calc(100% - 32px)); margin: 0 auto; }
header { background: #111827; color: #fff; padding: 20px 0; }
header .row { display: flex; justify-content: space-between; align-items: center; gap: 16px; }
nav a, nav button { color: #fff; background: none; border: none; cursor: pointer; font-size: 15px; }
.hero, .section { padding: 48px 0; }
.card-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 16px; }
.card, .panel { background: #fff; border: 1px solid #e5e7eb; border-radius: 16px; padding: 20px; }
input, textarea, select { width: 100%; padding: 12px 14px; border-radius: 12px; border: 1px solid #d1d5db; margin-top: 8px; }
textarea { min-height: 120px; resize: vertical; }
button, .btn { display: inline-block; padding: 12px 18px; border-radius: 12px; border: none; cursor: pointer; text-decoration: none; }
.btn-primary { background: #2563eb; color: #fff; }
.btn-danger { background: #dc2626; color: #fff; }
.btn-secondary { background: #111827; color: #fff; }
.row { display: flex; gap: 12px; flex-wrap: wrap; }
.hidden { display: none; }
.small { color: #6b7280; font-size: 14px; }
.admin-layout { display: grid; grid-template-columns: 360px 1fr; gap: 20px; }
.table-list { display: grid; gap: 12px; margin-top: 16px; }
.product-item { border: 1px solid #e5e7eb; border-radius: 14px; padding: 16px; background: #fff; }
@media (max-width: 900px) { .admin-layout { grid-template-columns: 1fr; } }