:root {
    --primary: #1e293b;
    --primary-light: #334155;
    --accent: #0284c7;
    --accent-hover: #0369a1;
    --bg-main: #f1f5f9;
    --bg-card: #ffffff;
    --text-main: #334155;
    --text-muted: #64748b;
    --border-color: #cbd5e1;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --radius: 6px;
    --transition: all 0.2s ease-in-out;
}

* { box-sizing: border-box; margin: 0; padding: 0; font-family: 'Segoe UI', system-ui, sans-serif; }
body { background-color: var(--bg-main); color: var(--text-main); font-size: 13px; line-height: 1.5; }
a { text-decoration: none; color: inherit; }

.auth-wrapper { display: flex; justify-content: center; align-items: center; min-height: 100vh; background: var(--primary); padding: 20px; }
.auth-card { background: var(--bg-card); width: 100%; max-width: 420px; border-radius: 8px; padding: 40px; box-shadow: 0 10px 25px rgba(0,0,0,0.5); }
.auth-logo { text-align: center; margin-bottom: 30px; font-size: 26px; font-weight: 800; color: var(--primary); }
.auth-logo span { color: var(--accent); }

.topbar { background-color: var(--primary); color: white; min-height: 55px; display: flex; align-items: center; justify-content: space-between; padding: 0 24px; box-shadow: 0 2px 4px rgba(0,0,0,0.1); flex-wrap: wrap; }
.topbar-brand { font-size: 18px; font-weight: 800; display: flex; align-items: center; }
.topbar-brand span { color: #38bdf8; margin-left: 4px; }
.topbar-nav { display: flex; flex-direction: row; flex-wrap: wrap; gap: 5px; }
.topbar-nav a { color: #cbd5e1; padding: 10px 15px; font-weight: 500; border-radius: 4px; transition: var(--transition); }
.topbar-nav a:hover, .topbar-nav a.active { color: white; background-color: var(--primary-light); }
.topbar-user { font-size: 13px; color: #cbd5e1; display: flex; align-items: center; gap: 15px; }
.topbar-user a { color: #f87171; font-weight: bold; background: rgba(255,255,255,0.05); padding: 6px 12px; border-radius: 4px; }
.topbar-user a:hover { background: #ef4444; color: white; }

.main-content { padding: 24px; max-width: 1400px; margin: 0 auto; }
.page-header { margin-bottom: 24px; }
.page-title { font-size: 20px; font-weight: 700; color: var(--primary); }
.page-subtitle { color: var(--text-muted); font-size: 13px; margin-top: 4px; }

.btn { display: inline-block; padding: 8px 16px; font-weight: 600; border-radius: var(--radius); border: none; cursor: pointer; text-align: center; transition: var(--transition); font-size: 13px; }
.btn-primary { background-color: var(--accent); color: white; }
.btn-primary:hover { background-color: var(--accent-hover); }
.btn-secondary { background-color: #64748b; color: white; }
.btn-secondary:hover { background-color: #475569; }
.btn-success { background-color: var(--success); color: white; }
.btn-danger { background-color: var(--danger); color: white; }
.btn-sm { padding: 5px 10px; font-size: 11px; }

.alert { padding: 14px; border-radius: var(--radius); margin-bottom: 20px; font-weight: 500; font-size: 13px; border-left: 4px solid transparent; }
.alert-success { background-color: #ecfdf5; color: #065f46; border-color: #10b981; }
.alert-danger { background-color: #fef2f2; color: #991b1b; border-color: #ef4444; }

.grid-4, .form-row, .flex-header { display: flex; flex-wrap: wrap; gap: 16px; width: 100%; margin-bottom: 16px; }
.col-grid { flex: 1; min-width: 200px; }
.form-col { flex: 1; min-width: 250px; }
.flex-header { justify-content: space-between; align-items: center; margin-bottom: 20px; }

.card-stat { background: var(--bg-card); padding: 20px; border-radius: var(--radius); box-shadow: 0 2px 4px rgba(0,0,0,0.05); border: 1px solid var(--border-color); position: relative; }
.card-stat .title { font-size: 12px; text-transform: uppercase; color: var(--text-muted); font-weight: 700; }
.card-stat .value { font-size: 24px; font-weight: 800; color: var(--primary); margin-top: 8px; }

.card { background: var(--bg-card); border-radius: var(--radius); border: 1px solid var(--border-color); box-shadow: 0 2px 4px rgba(0,0,0,0.05); margin-bottom: 24px; overflow: visible; }
.card-header { padding: 16px 20px; border-bottom: 1px solid var(--border-color); background: #f8fafc; font-weight: 700; color: var(--primary); display: flex; justify-content: space-between; align-items: center; }
.card-body { padding: 20px; }

.table-responsive { width: 100%; overflow-x: auto; padding: 20px; }
.table { width: 100%; border-collapse: collapse; text-align: left; }
.table th { padding: 12px 15px; border-bottom: 2px solid var(--border-color); font-weight: 600; color: var(--primary); background: #f1f5f9; }
.table td { padding: 12px 15px; border-bottom: 1px solid var(--border-color); vertical-align: middle; }
.table tr:hover td { background-color: #f8fafc; }

.badge { display: inline-block; padding: 4px 8px; font-size: 10px; font-weight: 700; border-radius: 4px; text-transform: uppercase; }
.badge-success { background-color: #d1fae5; color: #065f46; }
.badge-danger { background-color: #fee2e2; color: #991b1b; }
.badge-warning { background-color: #fef3c7; color: #92400e; }
.badge-info { background-color: #dbeafe; color: #1e40af; }
.badge-master { background-color: #e0e7ff; color: #3730a3; }

.dataTables_wrapper .dataTables_filter { margin-bottom: 15px; }
.dataTables_wrapper .dataTables_filter input { border: 1px solid var(--border-color); border-radius: 4px; padding: 6px 10px; margin-left: 8px; outline: none; }
.dataTables_wrapper .dataTables_filter input:focus { border-color: var(--accent); }
.dataTables_wrapper .dataTables_length select { border: 1px solid var(--border-color); border-radius: 4px; padding: 5px; outline: none; }
.dataTables_wrapper .dataTables_paginate { margin-top: 15px; }
.dataTables_wrapper .dataTables_paginate .paginate_button { padding: 5px 12px !important; margin: 0 3px; border-radius: 4px; border: 1px solid var(--border-color) !important; background: white !important; font-size: 12px; font-weight: 600; color: var(--primary) !important; cursor:pointer;}
.dataTables_wrapper .dataTables_paginate .paginate_button:hover { background: #f1f5f9 !important; color: var(--primary) !important; }
.dataTables_wrapper .dataTables_paginate .paginate_button.current { background: var(--accent) !important; color: white !important; border-color: var(--accent) !important; }

.form-group { margin-bottom: 16px; width: 100%; }
.form-group label { display: block; margin-bottom: 6px; font-weight: 600; font-size: 12px; color: var(--primary); text-transform: uppercase; }
.form-control { width: 100%; padding: 10px 12px; border: 1px solid var(--border-color); border-radius: var(--radius); font-size: 13px; background-color: #fff; transition: var(--transition); }
.form-control:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(2,132,199,0.1); }

.tabs-nav { border-bottom: 1px solid var(--border-color); margin-bottom: 20px; display: flex; gap: 10px; overflow-x: auto; }
.tabs-nav a { padding: 10px 20px; font-weight: 600; color: var(--text-muted); border-bottom: 3px solid transparent; white-space: nowrap; }
.tabs-nav a.active { color: var(--accent); border-bottom-color: var(--accent); }

.search-wrapper { position: relative; z-index: 100; }
.suggest-box { position: absolute; top: 100%; left: 0; right: 0; background: white; border: 1px solid var(--border-color); border-top: none; z-index: 9999; max-height: 250px; overflow-y: auto; border-radius: 0 0 var(--radius) var(--radius); box-shadow: 0 10px 15px rgba(0,0,0,0.2); }
.suggest-item { padding: 12px 14px; cursor: pointer; border-bottom: 1px solid #f1f5f9; font-weight: 500; color: var(--text-main); }
.suggest-item:hover { background-color: #f8fafc; color: var(--accent); }

@media print {
    body { background: white !important; }
    .topbar, .tabs-nav, .btn, .flex-header-actions, .dataTables_filter, .dataTables_length, .dataTables_info, .dataTables_paginate, form { display: none !important; }
    .main-content { padding: 0 !important; margin: 0 !important; max-width: 100% !important; }
    .card { border: none !important; box-shadow: none !important; margin: 0 !important; }
    .card-header { padding: 0 0 15px 0 !important; border-bottom: 2px solid #000 !important; margin-bottom: 15px !important; }
    .table { border-collapse: collapse !important; width: 100% !important; }
    .table th, .table td { border: 1px solid #000 !important; padding: 8px !important; color: #000 !important; }
    .badge { border: 1px solid #000 !important; color: #000 !important; background: transparent !important; }
}