body {
    background: linear-gradient(135deg, #2c3e50 0%, #34495e 100%);
    min-height: 100vh;
    color: #ecf0f1;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}
.card {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(15px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    border-radius: 12px;
    color: #2c3e50;
}
.card-header {
    background: linear-gradient(135deg, #3498db, #2980b9);
    color: white;
    border-radius: 12px 12px 0 0 !important;
    border: none;
    padding: 1rem 1.5rem;
    font-weight: 600;
}
.btn-primary {
    background: linear-gradient(135deg, #3498db, #2980b9);
    border: none;
    border-radius: 8px;
    padding: 8px 16px;
    font-weight: 500;
    transition: all 0.3s ease;
}
.btn-primary:hover {
    background: linear-gradient(135deg, #2980b9, #1e6391);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(52, 152, 219, 0.3);
}
.btn-success {
    background: linear-gradient(135deg, #27ae60, #219a52);
    border: none;
    border-radius: 8px;
    padding: 8px 16px;
    font-weight: 500;
}
.btn-danger {
    background: linear-gradient(135deg, #e74c3c, #c0392b);
    border: none;
    border-radius: 8px;
    padding: 6px 12px;
    font-weight: 500;
}
.btn-outline-light {
    border: 2px solid rgba(255, 255, 255, 0.3);
    color: rgba(255, 255, 255, 0.9);
    background: transparent;
    border-radius: 8px;
    font-weight: 500;
    transition: all 0.3s ease;
}
.btn-outline-light:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.5);
    color: white;
}
.navbar {
    background: rgba(44, 62, 80, 0.95) !important;
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding: 1rem 0;
}
.navbar-brand {
    font-weight: 700;
    font-size: 1.5rem;
    color: #3498db !important;
}
.nav-link {
    font-weight: 500;
    color: rgba(255, 255, 255, 0.9) !important;
    transition: color 0.3s ease;
}
.nav-link:hover, .nav-link.active {
    color: #3498db !important;
}
.table {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 8px;
    overflow: hidden;
}
.table thead th {
    background: linear-gradient(135deg, #34495e, #2c3e50);
    color: white;
    border: none;
    font-weight: 600;
    padding: 1rem;
}
.table tbody td {
    background: #ffffff;
    border-color: rgba(0, 0, 0, 0.1);
    padding: 0.75rem 1rem;
    color: #333333;
}
.table tbody tr:nth-child(even) td {
    background: #f8f9fa;
}
.table tbody tr:hover td {
    background: #e8f4f8;
    transition: background 0.3s ease;
}
.form-control, .form-select {
    border: 2px solid rgba(52, 152, 219, 0.2);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.95);
    color: #2c3e50;
    padding: 10px 15px;
    transition: all 0.3s ease;
}
.form-control:focus, .form-select:focus {
    border-color: #3498db;
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
    background: white;
}
.form-label {
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 8px;
}
.badge {
    padding: 6px 12px;
    border-radius: 20px;
    font-weight: 500;
    font-size: 0.8rem;
}
.chart-container {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(15px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 25px;
    margin-bottom: 20px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}
.chart-container h5 {
    color: #2c3e50;
    font-weight: 600;
    margin-bottom: 20px;
}
.chart-container canvas {
    max-height: 350px !important;
}
.pagination .page-link {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: gray;
    border-radius: 8px;
    margin: 0 2px;
    transition: all 0.3s ease;
}
.pagination .page-link:hover {
    background: rgba(52, 152, 219, 0.2);
    border-color: #3498db;
    color: gray;
}
.pagination .page-item.active .page-link {
    background: linear-gradient(135deg, #3498db, #2980b9);
    border-color: #3498db;
    color: white;
}
.status-indicators {
    display: flex;
    gap: 15px;
    align-items: center;
}
.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    display: inline-block;
    margin-right: 8px;
}
.status-success { background: #27ae60; }
.status-warning { background: #f39c12; }
.status-danger { background: #e74c3c; }
.status-info { background: #3498db; }
.section-title {
    color: #ecf0f1;
    font-weight: 700;
    margin-bottom: 1.5rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid #3498db;
    display: inline-block;
}
.stats-card {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.stats-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
}
.input-group-text {
    background: linear-gradient(135deg, #34495e, #2c3e50);
    color: white;
    border: none;
    border-radius: 8px 0 0 8px;
}
.alert {
    border: none;
    border-radius: 10px;
    padding: 15px 20px;
}
.text-muted {
    color: #7f8c8d !important;
}