/* Custom styles for the Class Change System */

body {
    background-color: #f8f9fa;
}

.navbar {
    box-shadow: 0 2px 4px rgba(0,0,0,.1);
}

.card {
    box-shadow: 0 2px 4px rgba(0,0,0,.05);
    border: none;
    margin-bottom: 1.5rem;
}

.card-header {
    background-color: #fff;
    border-bottom: 1px solid rgba(0,0,0,.125);
}

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

.badge {
    padding: 0.5em 0.75em;
}

.btn-sm {
    padding: 0.25rem 0.5rem;
    font-size: 0.875rem;
}

.display-4 {
    font-weight: 300;
}

.lead {
    font-weight: 300;
}

/* Custom card styles for statistics */
.card.bg-primary,
.card.bg-success,
.card.bg-warning {
    border: none;
    transition: transform 0.2s;
}

.card.bg-primary:hover,
.card.bg-success:hover,
.card.bg-warning:hover {
    transform: translateY(-5px);
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .container {
        padding: 0 15px;
    }
    
    .card {
        margin-bottom: 1rem;
    }
    
    .table-responsive {
        margin-bottom: 1rem;
    }
}

/* Form styling */
.form-control:focus {
    border-color: #80bdff;
    box-shadow: 0 0 0 0.2rem rgba(0,123,255,.25);
}

.form-select:focus {
    border-color: #80bdff;
    box-shadow: 0 0 0 0.2rem rgba(0,123,255,.25);
}

/* Button styling */
.btn-primary {
    background-color: #0d6efd;
    border-color: #0d6efd;
}

.btn-primary:hover {
    background-color: #0b5ed7;
    border-color: #0a58ca;
}

.btn-success {
    background-color: #198754;
    border-color: #198754;
}

.btn-success:hover {
    background-color: #157347;
    border-color: #146c43;
}

.btn-danger {
    background-color: #dc3545;
    border-color: #dc3545;
}

.btn-danger:hover {
    background-color: #bb2d3b;
    border-color: #b02a37;
}

/* Alert styling */
.alert {
    border: none;
    border-radius: 0.25rem;
    margin-bottom: 1rem;
}

/* Table styling */
.table thead th {
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.875rem;
    letter-spacing: 0.5px;
}

.table tbody tr:hover {
    background-color: rgba(0,0,0,.02);
}