.checkbox-container {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.5rem;
}


.delete-year-registration {
    margin-left: 5px;
}

.delete-year-registration:hover {
    background-color: #dc3545;
    border-color: #dc3545;
    color: white;
}

.year-table .btn-group {
    display: flex;
    gap: 5px;
}

.bg-gradient-primary {
    background: linear-gradient(135deg, #0d6efd 0%, #0056b3 100%);
}
.sortable a:hover {
    background-color: rgba(0,0,0,0.05);
}
.sort-icon {
    margin-left: 5px;
    font-size: 0.8em;
}
.form-control:focus, .form-select:focus {
    border-color: #0d6efd;
    box-shadow: 0 0 0 0.2rem rgba(13, 110, 253, 0.25);
}



/* CSS per il frontend dei corsi */

.courses-container {
    margin: 20px 0;
}

.course-item {
    border: 1px solid #ddd;
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 20px;
    background: #fff;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    transition: box-shadow 0.3s ease;
}

.course-item:hover {
    box-shadow: 0 4px 8px rgba(0,0,0,0.15);
}

.course-title {
    font-size: 1.5em;
    font-weight: bold;
    margin-bottom: 10px;
    color: #333;
}

.course-meta {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 10px;
    margin-top: 15px;
}

.course-meta-item {
    display: flex;
    align-items: center;
}

.course-meta-label {
    font-weight: bold;
    margin-right: 8px;
    color: #666;
}

.course-meta-value {
    color: #333;
}

.course-status {
    display: inline-block;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 0.9em;
    font-weight: bold;
}

.course-status.active {
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.course-status.inactive {
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.course-teachers {
    font-style: italic;
    color: #666;
}

.course-dates {
    color: #007cba;
    font-weight: 500;
}

.course-age-range {
    background-color: #f8f9fa;
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 0.9em;
}

.course-notes {
    margin-top: 15px;
    padding: 10px;
    background-color: #f8f9fa;
    border-left: 4px solid #007cba;
    font-style: italic;
}

/* Responsive design */
@media (max-width: 768px) {
    .course-meta {
        grid-template-columns: 1fr;
    }
    
    .course-item {
        padding: 15px;
        margin-bottom: 15px;
    }
    
    .course-title {
        font-size: 1.3em;
    }
}

/* Stili per la tabella dei corsi */
.courses-table-container {
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    overflow: hidden;
}

.courses-filter-form {
    background: #f8f9fa;
    padding: 20px;
    border-bottom: 1px solid #dee2e6;
}

.courses-filter-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
    align-items: end;
}

.courses-filter-actions {
    display: flex;
    gap: 10px;
    grid-column: -1;
    justify-self: end;
}

/* Badge styles */
.badge {
    display: inline-block;
    padding: 0.25em 0.6em;
    font-size: 0.75em;
    font-weight: 700;
    line-height: 1;
    text-align: center;
    white-space: nowrap;
    vertical-align: baseline;
    border-radius: 0.375rem;
}

.badge.bg-success {
    background-color: #198754;
    color: #fff;
}

.badge.bg-danger {
    background-color: #dc3545;
    color: #fff;
}

.badge.bg-warning {
    background-color: #ffc107;
    color: #000;
}

.badge.bg-info {
    background-color: #0dcaf0;
    color: #000;
}


/* 
 * Frontend CSS for lessons system
 * Contains styles for the lessons display and filtering interface
 */

 .lessons-container {
    margin: 20px 0;
}

.lessons-filter-form {
    background: #f8f9fa;
    padding: 20px;
    border-radius: 8px;
    margin-bottom: 20px;
    border: 1px solid #dee2e6;
}

.lessons-table-container {
    overflow-x: auto;
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.lessons-table {
    width: 100%;
    border-collapse: collapse;
    margin: 0;
}

.lessons-table th,
.lessons-table td {
    padding: 12px 8px;
    text-align: left;
    border-bottom: 1px solid #dee2e6;
}

.lessons-table th {
    background-color: #343a40;
    color: white;
    font-weight: 600;
    position: sticky;
    top: 0;
    z-index: 10;
}

.lessons-table tbody tr:hover {
    background-color: #f8f9fa;
}

.lessons-badge {
    display: inline-block;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 500;
    text-align: center;
    min-width: 60px;
}

.lessons-badge.available {
    background-color: #28a745;
    color: white;
}

.lessons-badge.occupied {
    background-color: #dc3545;
    color: white;
}

.lessons-badge.individual {
    background-color: #17a2b8;
    color: white;
}

.lessons-badge.group {
    background-color: #6c757d;
    color: white;
}

.lessons-day {
    font-weight: 600;
    color: #495057;
}

.lessons-time {
    font-family: 'Courier New', monospace;
    font-size: 14px;
    color: #495057;
}

.lessons-course-link {
    color: #007bff;
    text-decoration: none;
    font-weight: 500;
}

.lessons-course-link:hover {
    color: #0056b3;
    text-decoration: underline;
}

.lessons-student-info {
    color: #495057;
    font-size: 14px;
}

.lessons-note {
    max-width: 200px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-style: italic;
    color: #6c757d;
}

.lessons-pagination {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 20px;
    padding: 15px 0;
}

.lessons-stats {
    background: #f8f9fa;
    padding: 15px;
    border-radius: 8px;
    margin-bottom: 20px;
    border: 1px solid #dee2e6;
}

.lessons-stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 15px;
}

.lessons-stat-item {
    text-align: center;
    padding: 10px;
    background: white;
    border-radius: 6px;
    border: 1px solid #dee2e6;
}

.lessons-stat-number {
    font-size: 24px;
    font-weight: bold;
    color: #495057;
    display: block;
}

.lessons-stat-label {
    font-size: 12px;
    color: #6c757d;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .lessons-table th,
    .lessons-table td {
        padding: 8px 4px;
        font-size: 14px;
    }
    
    .lessons-note {
        max-width: 120px;
    }
    
    .lessons-stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .lessons-table {
        font-size: 12px;
    }
    
    .lessons-badge {
        font-size: 10px;
        padding: 2px 6px;
        min-width: 50px;
    }
    
    .lessons-stats-grid {
        grid-template-columns: 1fr;
    }
}