:root {
    --navy: #0b1f4d;
    --navy-dark: #071433;
    --blue: #2f6fed;
    --blue-light: #eaf0fe;
    --gray: #6b7280;
    --border: #e5e7eb;
    --bg: #f7f8fa;
    --success: #16a34a;
    --warning: #d97706;
    --danger: #dc2626;
}
* { box-sizing: border-box; }
body {
    margin: 0;
    font-family: -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
    background: var(--bg);
    color: #1f2937;
}
.container { max-width: 1100px; margin: 0 auto; padding: 0 20px; }
a { color: var(--blue); text-decoration: none; }

/* Header */
.site-header { background: var(--navy); color: #fff; }
.header-inner { display: flex; justify-content: space-between; align-items: center; padding: 16px 20px; flex-wrap: wrap; gap: 12px; }
.brand { color: #fff; font-size: 1.4rem; font-weight: 700; }
.brand span { color: #7fa8ff; }
.main-nav { display: flex; gap: 18px; align-items: center; flex-wrap: wrap; }
.main-nav a { color: #dce4ff; }
.main-nav a:hover { color: #fff; }
.cart-link { background: var(--blue); color: #fff !important; padding: 6px 12px; border-radius: 6px; }
.cart-count { background: #fff; color: var(--navy); border-radius: 50%; padding: 0 6px; font-size: 0.8rem; margin-left: 4px; }

.page-content { padding: 30px 20px 60px; min-height: 60vh; }

.site-footer { background: var(--navy-dark); color: #b9c2dc; text-align: center; padding: 20px; margin-top: 40px; font-size: 0.9rem; }

/* Flash messages */
.flash { padding: 12px 16px; border-radius: 6px; margin-bottom: 20px; }
.flash-success { background: #dcfce7; color: #166534; }
.flash-error { background: #fee2e2; color: #991b1b; }

/* Grid / cards */
.product-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 20px; margin-top: 20px; }
.product-card { background: #fff; border: 1px solid var(--border); border-radius: 10px; overflow: hidden; display: flex; flex-direction: column; }
.product-card img { width: 100%; height: 160px; object-fit: cover; background: #eee; }
.product-card .body { padding: 14px; display: flex; flex-direction: column; gap: 6px; flex: 1; }
.product-card h3 { margin: 0; font-size: 1.05rem; }
.price { color: var(--blue); font-weight: 700; }
.badge { display: inline-block; padding: 2px 8px; border-radius: 999px; font-size: 0.75rem; font-weight: 600; }
.badge-product { background: var(--blue-light); color: var(--blue); }
.badge-service { background: #fef3c7; color: #92400e; }

/* Buttons */
.btn { display: inline-block; background: var(--blue); color: #fff; border: none; padding: 10px 16px; border-radius: 6px; cursor: pointer; font-size: 0.95rem; }
.btn:hover { background: #234fb0; }
.btn-secondary { background: #e5e7eb; color: #111827; }
.btn-secondary:hover { background: #d1d5db; }
.btn-danger { background: var(--danger); color: #fff; }
.btn-sm { padding: 5px 10px; font-size: 0.85rem; }
.btn-block { width: 100%; text-align: center; }

/* Forms */
.form-group { margin-bottom: 16px; }
label { display: block; margin-bottom: 6px; font-weight: 600; font-size: 0.9rem; }
input[type=text], input[type=email], input[type=password], input[type=number], input[type=tel], textarea, select {
    width: 100%; padding: 10px; border: 1px solid var(--border); border-radius: 6px; font-size: 0.95rem;
}
textarea { min-height: 90px; }
.form-card { background: #fff; border: 1px solid var(--border); border-radius: 10px; padding: 24px; max-width: 460px; margin: 0 auto; }

/* Tables */
table { width: 100%; border-collapse: collapse; background: #fff; }
table th, table td { padding: 10px 12px; border-bottom: 1px solid var(--border); text-align: left; font-size: 0.92rem; }
table th { background: #f3f4f6; }

/* Status badges */
.badge-pending { background: #fef9c3; color: #854d0e; }
.badge-processing { background: #dbeafe; color: #1e40af; }
.badge-delivered { background: #dcfce7; color: #166534; }
.badge-cancelled { background: #fee2e2; color: #991b1b; }

/* Admin layout */
.admin-wrap { display: flex; min-height: 100vh; }
.admin-sidebar { width: 220px; background: var(--navy); color: #fff; flex-shrink: 0; }
.admin-sidebar .brand { display: block; padding: 20px; font-weight: 700; color: #fff; border-bottom: 1px solid rgba(255,255,255,0.1); }
.admin-sidebar nav { display: flex; flex-direction: column; padding: 10px 0; }
.admin-sidebar nav a { color: #dce4ff; padding: 12px 20px; }
.admin-sidebar nav a:hover, .admin-sidebar nav a.active { background: rgba(255,255,255,0.08); color: #fff; }
.admin-main { flex: 1; padding: 30px; }
.admin-topbar { display: flex; justify-content: space-between; align-items: center; margin-bottom: 24px; }
.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px,1fr)); gap: 16px; margin-bottom: 30px; }
.stat-card { background: #fff; border: 1px solid var(--border); border-radius: 10px; padding: 18px; }
.stat-card .num { font-size: 1.7rem; font-weight: 700; color: var(--navy); }
.stat-card .label { color: var(--gray); font-size: 0.85rem; }
.card { background: #fff; border: 1px solid var(--border); border-radius: 10px; padding: 20px; margin-bottom: 20px; }
.toolbar { display: flex; justify-content: space-between; align-items: center; margin-bottom: 16px; flex-wrap: wrap; gap: 10px; }
.filters a { margin-right: 10px; padding: 6px 12px; border-radius: 6px; background: #f3f4f6; color: #374151; }
.filters a.active { background: var(--blue); color: #fff; }

/* POS */
.pos-wrap { display: grid; grid-template-columns: 2fr 1fr; gap: 20px; }
.pos-item { display: flex; justify-content: space-between; align-items: center; padding: 10px; border-bottom: 1px solid var(--border); }
.pos-cart-line { display: flex; justify-content: space-between; align-items: center; padding: 8px 0; border-bottom: 1px dashed var(--border); font-size: 0.9rem; }

@media (max-width: 800px) {
    .admin-wrap { flex-direction: column; }
    .admin-sidebar { width: 100%; }
    .pos-wrap { grid-template-columns: 1fr; }
}