/* Custom Styles */
:root {
    --primary-color: #4361ee;
    --secondary-color: #3a0ca3;
    --success-color: #4cc9f0;
    --warning-color: #f72585;
}

body {
    background-color: #f8f9fa;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

.navbar-brand {
    font-weight: 600;
    font-size: 1.5rem;
}

.card {
    border-radius: 10px;
    border: none;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
}

.card-header {
    border-radius: 10px 10px 0 0 !important;
    font-weight: 600;
}

.btn-primary {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

.btn-primary:hover {
    background-color: var(--secondary-color);
    border-color: var(--secondary-color);
}

.btn-success {
    background-color: var(--success-color);
    border-color: var(--success-color);
}

.btn-warning {
    background-color: var(--warning-color);
    border-color: var(--warning-color);
}

.stat-card {
    text-align: center;
    padding: 20px;
}

.stat-card i {
    font-size: 2.5rem;
    margin-bottom: 15px;
}

.stat-card .number {
    font-size: 2rem;
    font-weight: bold;
}

.stat-card .label {
    font-size: 0.9rem;
    color: #6c757d;
}

.login-container {
    max-width: 400px;
    margin: 100px auto;
}

.login-card {
    padding: 30px;
}

.loading {
    display: none;
}

.table th {
    background-color: #f8f9fa;
    border-top: none;
}

.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.25rem rgba(67, 97, 238, 0.25);
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .card {
        margin-bottom: 20px;
    }
    
    .navbar-nav {
        text-align: center;
    }
}