:root {
    --primary: #16a34a;
    --primary-dark: #15803d;
    --bg: #f7f8fa;
    --card: #ffffff;
    --text: #1f2937;
    --muted: #6b7280;
    --border: #e5e7eb;
    --danger: #dc2626;
    --warning: #d97706;
    --radius: 12px;
}
* { box-sizing: border-box; }
body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.5;
}
.container { max-width: 880px; margin: 0 auto; padding: 0 16px; }

.site-header {
    background: var(--card);
    border-bottom: 1px solid var(--border);
    padding: 14px 0;
    position: sticky; top: 0; z-index: 10;
}
.site-header .brand { font-size: 1.25rem; font-weight: 700; color: var(--primary-dark); text-decoration: none; }

main.container { padding-top: 24px; padding-bottom: 40px; min-height: 70vh; }

.site-footer {
    background: var(--card);
    border-top: 1px solid var(--border);
    padding: 18px 0;
    color: var(--muted);
    font-size: 0.85rem;
    text-align: center;
}

h1 { font-size: 1.5rem; margin: 0 0 16px; }
h2 { font-size: 1.2rem; margin: 0 0 12px; }

.grid-produk {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 16px;
}
.card-produk {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    text-decoration: none;
    color: var(--text);
    display: block;
    transition: transform .12s ease, box-shadow .12s ease;
}
.card-produk:hover { transform: translateY(-2px); box-shadow: 0 6px 16px rgba(0,0,0,0.06); }
.card-produk img { width: 100%; aspect-ratio: 1/1; object-fit: cover; background: #f1f5f9; display: block; }
.card-produk .no-img { width: 100%; aspect-ratio: 1/1; background: #f1f5f9; display: flex; align-items: center; justify-content: center; color: var(--muted); font-size: 0.8rem; }
.card-produk .info { padding: 10px 12px; }
.card-produk .nama { font-weight: 600; font-size: 0.95rem; margin: 0 0 4px; }
.card-produk .harga { color: var(--primary-dark); font-weight: 700; }
.card-produk .stok-habis { color: var(--danger); font-size: 0.8rem; }

.card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
    margin-bottom: 16px;
}

.produk-detail { display: flex; gap: 20px; flex-wrap: wrap; }
.produk-detail img, .produk-detail .no-img { width: 260px; height: 260px; object-fit: cover; border-radius: var(--radius); background: #f1f5f9; }
.produk-detail .info { flex: 1; min-width: 240px; }
.harga-besar { font-size: 1.5rem; font-weight: 800; color: var(--primary-dark); margin: 8px 0; }

form .form-group { margin-bottom: 14px; }
label { display: block; font-weight: 600; margin-bottom: 6px; font-size: 0.9rem; }
input[type=text], input[type=tel], input[type=number], textarea, select {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 1rem;
    font-family: inherit;
}
input:focus, textarea:focus, select:focus { outline: 2px solid var(--primary); border-color: var(--primary); }
.btn {
    display: inline-block;
    background: var(--primary);
    color: #fff;
    border: none;
    padding: 12px 20px;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    text-align: center;
}
.btn:hover { background: var(--primary-dark); }
.btn-secondary { background: #6b7280; }
.btn-secondary:hover { background: #4b5563; }
.btn-danger { background: var(--danger); }
.btn-block { display: block; width: 100%; }

.alert { padding: 12px 14px; border-radius: 8px; margin-bottom: 16px; font-size: 0.9rem; }
.alert-error { background: #fee2e2; color: #991b1b; }
.alert-success { background: #dcfce7; color: #166534; }
.alert-warning { background: #fef3c7; color: #92400e; }

.badge { display: inline-block; padding: 3px 10px; border-radius: 999px; font-size: 0.78rem; font-weight: 700; }
.badge-pending { background: #fef3c7; color: #92400e; }
.badge-paid { background: #dcfce7; color: #166534; }
.badge-failed, .badge-expired { background: #fee2e2; color: #991b1b; }

.payment-box { text-align: center; }
.payment-box .qr-img { max-width: 280px; width: 100%; border: 1px solid var(--border); border-radius: var(--radius); padding: 10px; background: #fff; }
.payment-box .nominal { font-size: 1.8rem; font-weight: 800; margin: 12px 0 4px; }
.payment-box .order-id { color: var(--muted); font-size: 0.85rem; margin-bottom: 16px; }
.countdown { font-size: 1.1rem; font-weight: 700; color: var(--warning); margin: 10px 0; }
.status-line { margin: 16px 0; font-size: 1rem; }

table { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
table th, table td { text-align: left; padding: 10px 8px; border-bottom: 1px solid var(--border); }
table th { background: #f9fafb; font-weight: 700; }
.table-wrap { overflow-x: auto; }

.filter-bar { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 16px; }
.filter-bar > * { flex: 1; min-width: 140px; }

.login-box { max-width: 360px; margin: 60px auto; }

.dashboard-stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 12px; margin-bottom: 20px; }
.stat-card { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px; text-align: center; }
.stat-card .num { font-size: 1.6rem; font-weight: 800; }
.stat-card .label { color: var(--muted); font-size: 0.8rem; }

.admin-nav { display: flex; gap: 8px; margin-bottom: 20px; flex-wrap: wrap; }
.admin-nav a { padding: 8px 14px; border-radius: 8px; background: var(--card); border: 1px solid var(--border); text-decoration: none; color: var(--text); font-size: 0.9rem; font-weight: 600; }
.admin-nav a.active { background: var(--primary); color: #fff; border-color: var(--primary); }