* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: 'Segoe UI', Tahoma, sans-serif; background: #f0f2f5; color: #333; }

.navbar {
    background: #2c3e50; padding: 0 20px; display: flex; align-items: center; height: 56px; position: relative; z-index: 100;
}
.navbar a {
    color: #ecf0f1; text-decoration: none; padding: 16px 18px; font-size: 15px; transition: background .2s;
}
.navbar a:hover, .navbar a.active { background: #1a252f; }
.navbar .brand { font-size: 18px; font-weight: 700; margin-right: 20px; color: #3498db; }

.nav-dropdown { position: relative; }
.nav-dropdown .dropdown-toggle { cursor: pointer; }
.nav-dropdown .dropdown-menu {
    display: none; position: absolute; top: 100%; left: 0; background: #34495e;
    min-width: 180px; box-shadow: 0 4px 12px rgba(0,0,0,.2); border-radius: 0 0 6px 6px; z-index: 200;
}
.nav-dropdown .dropdown-menu a { display: block; padding: 12px 18px; font-size: 14px; border-bottom: 1px solid #3d566e; }
.nav-dropdown .dropdown-menu a:last-child { border-bottom: none; }
.nav-dropdown:hover .dropdown-menu { display: block; }

.container { max-width: 1800px; margin: 30px auto; padding: 0 20px; }

.card {
    background: #fff; border-radius: 8px; box-shadow: 0 2px 8px rgba(0,0,0,.08);
    padding: 24px; margin-bottom: 24px;
}
.card h2 { margin-bottom: 16px; color: #2c3e50; font-size: 20px; }

table { width: 100%; border-collapse: collapse; }
th, td { padding: 10px 12px; text-align: left; border-bottom: 1px solid #eee; font-size: 14px; white-space: nowrap; }
th { background: #f8f9fa; font-weight: 600; color: #555; }
tr:hover { background: #f8f9fa; }

.btn {
    display: inline-block; padding: 8px 18px; border: none; border-radius: 5px;
    cursor: pointer; font-size: 14px; text-decoration: none; color: #fff; transition: opacity .2s;
}
.btn:hover { opacity: .85; }
.btn-primary { background: #3498db; }
.btn-success { background: #27ae60; }
.btn-danger { background: #e74c3c; }
.btn-warning { background: #f39c12; }
.btn-sm { padding: 5px 12px; font-size: 13px; }

.form-group { margin-bottom: 14px; }
.form-group label { display: block; margin-bottom: 5px; font-weight: 600; font-size: 14px; color: #555; }
.form-group input, .form-group select, .form-group textarea {
    width: 100%; padding: 9px 12px; border: 1px solid #ddd; border-radius: 5px; font-size: 14px;
}
.form-group input[readonly] { background: #f0f0f0; }
.form-group textarea { resize: vertical; min-height: 60px; }
.form-row { display: flex; gap: 16px; }
.form-row .form-group { flex: 1; }

.alert {
    padding: 12px 16px; border-radius: 5px; margin-bottom: 16px; font-size: 14px;
}
.alert-success { background: #d4edda; color: #155724; border: 1px solid #c3e6cb; }
.alert-danger { background: #f8d7da; color: #721c24; border: 1px solid #f5c6cb; }

.badge {
    display: inline-block; padding: 3px 10px; border-radius: 12px; font-size: 12px; font-weight: 600; color: #fff;
}
.badge-in { background: #27ae60; }
.badge-out { background: #e74c3c; }
.badge-low { background: #e74c3c; }
.badge-ok { background: #27ae60; }

.stats { display: flex; gap: 20px; margin-bottom: 24px; flex-wrap: wrap; }
.stat-card {
    flex: 1; min-width: 140px; background: #fff; border-radius: 8px; padding: 20px; text-align: center;
    box-shadow: 0 2px 8px rgba(0,0,0,.08);
}
.stat-card .number { font-size: 32px; font-weight: 700; }
.stat-card .label { font-size: 13px; color: #888; margin-top: 4px; }
.stat-card.blue .number { color: #3498db; }
.stat-card.green .number { color: #27ae60; }
.stat-card.red .number { color: #e74c3c; }
.stat-card.orange .number { color: #f39c12; }

.section-label { background: #eaf2f8; padding: 10px 14px; border-radius: 5px; margin: 16px 0 10px; font-weight: 600; color: #2c3e50; font-size: 14px; }

/* Pagination */
.pagination {
    display: flex; justify-content: space-between; align-items: center;
    flex-wrap: wrap; gap: 12px; margin-top: 18px;
}
.pagination-info { color: #666; font-size: 14px; }
.pagination-controls { display: flex; gap: 8px; }
.btn-disabled {
    background: #e0e0e0; color: #999; cursor: not-allowed;
    display: inline-block; padding: 5px 12px; border-radius: 5px; font-size: 13px;
}