:root {
    --primary: #2563eb;
    --primary-dark: #1e40af;
    --success: #16a34a;
    --warning: #d97706;
    --danger: #dc2626;
    --info: #0891b2;
    --secondary: #6b7280;
    --bg: #f4f6f9;
    --card: #ffffff;
    --text: #1f2937;
    --border: #e5e7eb;
}
* { box-sizing: border-box; }
body {
    margin: 0;
    font-family: 'Segoe UI', Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
}
a { color: var(--primary); text-decoration: none; }

/* ===== Layout Shell ===== */
.app-shell { display: flex; min-height: 100vh; }
.sidebar {
    width: 250px;
    background: #101828;
    color: #cbd5e1;
    padding: 18px 0;
    flex-shrink: 0;
}
.sidebar-brand { display: flex; align-items: center; gap: 10px; padding: 0 18px 18px; border-bottom: 1px solid #1f2937; }
.brand-icon { font-size: 28px; }
.brand-title { color: #fff; font-weight: 700; font-size: 18px; }
.brand-sub { font-size: 11px; color: #94a3b8; }
.sidebar-nav { display: flex; flex-direction: column; padding: 10px 0; }
.sidebar-nav a { color: #cbd5e1; padding: 10px 20px; font-size: 14px; border-left: 3px solid transparent; }
.sidebar-nav a:hover { background: #1e293b; color: #fff; }
.sidebar-nav a.active { background: #1e293b; color: #fff; border-left-color: var(--primary); }
.nav-group { padding: 14px 20px 4px; font-size: 11px; text-transform: uppercase; color: #64748b; letter-spacing: .05em; }

.main-area { flex: 1; display: flex; flex-direction: column; min-width: 0; }
.topbar { background: var(--card); border-bottom: 1px solid var(--border); padding: 14px 24px; display: flex; justify-content: space-between; align-items: center; }
.topbar-title { font-size: 18px; font-weight: 600; }
.topbar-user { display: flex; align-items: center; gap: 12px; }
.user-role-badge { background: #eef2ff; color: var(--primary-dark); padding: 3px 10px; border-radius: 12px; font-size: 12px; font-weight: 600; }
.user-name { font-weight: 500; }
.btn-logout { background: #fee2e2; color: var(--danger); padding: 6px 12px; border-radius: 6px; font-size: 13px; }
.content { padding: 24px; }

/* ===== Cards & Grid ===== */
.card { background: var(--card); border: 1px solid var(--border); border-radius: 10px; padding: 20px; margin-bottom: 20px; }
.card-title { font-size: 16px; font-weight: 600; margin: 0 0 16px; }
.grid { display: grid; gap: 16px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 900px) { .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; } }

.stat-box { background: var(--card); border: 1px solid var(--border); border-radius: 10px; padding: 18px; }
.stat-box .stat-num { font-size: 28px; font-weight: 700; }
.stat-box .stat-label { color: var(--secondary); font-size: 13px; }
.stat-box.blue { border-left: 4px solid var(--primary); }
.stat-box.green { border-left: 4px solid var(--success); }
.stat-box.orange { border-left: 4px solid var(--warning); }
.stat-box.red { border-left: 4px solid var(--danger); }

/* ===== Forms ===== */
label { display: block; font-size: 13px; font-weight: 600; margin-bottom: 5px; color: #374151; }
input, select, textarea {
    width: 100%; padding: 9px 12px; border: 1px solid var(--border); border-radius: 6px;
    font-size: 14px; margin-bottom: 14px; background: #fff; font-family: inherit;
}
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--primary); }
.form-row { display: flex; gap: 14px; }
.form-row > div { flex: 1; }
.btn { display: inline-block; padding: 9px 18px; border-radius: 6px; border: none; background: var(--primary); color: #fff; font-size: 14px; cursor: pointer; font-weight: 600; }
.btn:hover { background: var(--primary-dark); }
.btn-secondary { background: #e5e7eb; color: #374151; }
.btn-danger { background: var(--danger); color: #fff; }
.btn-success { background: var(--success); color: #fff; }
.btn-sm { padding: 5px 10px; font-size: 12px; }
.btn-outline { background: transparent; border: 1px solid var(--primary); color: var(--primary); }

/* ===== Table ===== */
table { width: 100%; border-collapse: collapse; background: var(--card); }
table th, table td { padding: 10px 12px; border-bottom: 1px solid var(--border); text-align: left; font-size: 14px; }
table th { background: #f9fafb; font-weight: 600; color: #374151; }
table tr:hover td { background: #fafbff; }
.table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: 10px; }
.table-wrap table { border: none; }

/* ===== Badge ===== */
.badge { display: inline-block; padding: 3px 10px; border-radius: 10px; font-size: 12px; font-weight: 600; }
.badge-success { background: #dcfce7; color: #166534; }
.badge-warning { background: #fef3c7; color: #92400e; }
.badge-danger { background: #fee2e2; color: #991b1b; }
.badge-info { background: #cffafe; color: #155e75; }
.badge-secondary { background: #e5e7eb; color: #374151; }

/* ===== Alerts ===== */
.alert { padding: 12px 16px; border-radius: 8px; margin-bottom: 16px; font-size: 14px; }
.alert-success { background: #dcfce7; color: #166534; }
.alert-danger { background: #fee2e2; color: #991b1b; }
.alert-warning { background: #fef3c7; color: #92400e; }
.alert-info { background: #cffafe; color: #155e75; }

.toolbar { display: flex; justify-content: space-between; align-items: center; margin-bottom: 16px; flex-wrap: wrap; gap: 10px; }
.text-muted { color: var(--secondary); font-size: 13px; }
.text-center { text-align: center; }
.mb-0 { margin-bottom: 0; }

/* ===== Login Page ===== */
.login-page { min-height: 100vh; display: flex; align-items: center; justify-content: center; background: linear-gradient(135deg,#1e3a8a,#2563eb); }
.login-box { background: #fff; border-radius: 14px; padding: 36px; width: 380px; box-shadow: 0 20px 50px rgba(0,0,0,.25); }
.login-box h1 { text-align: center; margin: 0 0 4px; color: var(--primary-dark); }
.login-box .sub { text-align: center; color: var(--secondary); font-size: 13px; margin-bottom: 22px; }
.role-tabs { display: flex; gap: 6px; margin-bottom: 20px; background: #f1f5f9; padding: 4px; border-radius: 8px; }
.role-tabs label { flex: 1; text-align: center; padding: 8px 4px; border-radius: 6px; cursor: pointer; font-size: 13px; margin: 0; font-weight: 600; color: #64748b; }
.role-tabs input { display: none; }
.role-tabs input:checked + label { background: var(--primary); color: #fff; }

/* ===== Scan Page ===== */
.scan-wrap { text-align: center; }
#qr-reader { width: 100%; max-width: 420px; margin: 0 auto; border-radius: 12px; overflow: hidden; }
.scan-result { margin-top: 18px; padding: 16px; border-radius: 10px; font-size: 18px; font-weight: 700; }
.scan-result.ok { background: #dcfce7; color: #166534; }
.scan-result.fail { background: #fee2e2; color: #991b1b; }

/* ===== Print (Kartu / Surat Izin) ===== */
@media print {
    .no-print { display: none !important; }
    body { background: #fff; }
}
.kartu-pelajar {
    width: 300px; border: 2px solid var(--primary); border-radius: 10px; padding: 14px;
    display: inline-block; margin: 8px; text-align: center; background: #fff; vertical-align: top;
}
.kartu-pelajar .foto { width: 70px; height: 90px; object-fit: cover; border: 1px solid var(--border); }
.kartu-pelajar h3 { margin: 6px 0 2px; font-size: 15px; }
.kartu-pelajar .qr-box { margin-top: 8px; }