/* Teacher Dashboard Styles */
.teacher-badge {
    background: #9b59b6;
    color: white;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.85em;
    font-weight: 500;
    margin-left: 10px;
}

.dashboard-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    margin-top: 30px;
}

.dashboard-section {
    background: white;
    padding: 25px;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
}

.dashboard-section h2 {
    margin-top: 0;
    margin-bottom: 20px;
    color: #2c3e50;
}

.classes-list,
.sessions-list {
    margin-top: 20px;
}

.class-card,
.session-card {
    background: #f8f9fa;
    padding: 20px;
    border-radius: 8px;
    margin-bottom: 15px;
    border: 1px solid #e9ecef;
    transition: all 0.3s ease;
}

.class-card:hover,
.session-card:hover {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    transform: translateY(-2px);
}

.class-card h3,
.session-card h3 {
    margin-top: 0;
    margin-bottom: 10px;
    color: #333;
}

.class-card p,
.session-card p {
    margin: 5px 0;
    color: #666;
}

.class-actions,
.session-actions {
    margin-top: 15px;
    display: flex;
    gap: 10px;
}

.session-card.active {
    border-color: #28a745;
    background-color: #d4edda;
}

.session-class {
    font-weight: 600;
    color: #495057;
}

.session-time {
    font-size: 0.9em;
    color: #6c757d;
}

.empty-state {
    text-align: center;
    color: #999;
    font-style: italic;
    padding: 40px 20px;
}

/* Form Styles */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 8px;
    color: #333;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 10px 15px;
    border: 2px solid #e0e0e0;
    border-radius: 6px;
    font-size: 1em;
    transition: border-color 0.3s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #007bff;
}

/* Button Styles */
.btn {
    padding: 10px 20px;
    border: none;
    border-radius: 6px;
    font-size: 1em;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-primary {
    background: #007bff;
    color: white;
}

.btn-primary:hover {
    background: #0056b3;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 123, 255, 0.3);
}

.btn-secondary {
    background: #6c757d;
    color: white;
}

.btn-secondary:hover {
    background: #5a6268;
}

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

.btn-danger:hover {
    background: #c82333;
}

.btn-sm {
    padding: 6px 12px;
    font-size: 0.9em;
}

/* Active Session Control */
.active-session-control {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background: white;
    padding: 20px;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
    border: 2px solid #28a745;
    max-width: 300px;
}

.active-session-control h3 {
    margin-top: 0;
    color: #28a745;
}

.session-info {
    margin: 15px 0;
}

.session-info span {
    display: block;
    margin: 5px 0;
}

/* Modal Styles */
.modal {
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0, 0, 0, 0.5);
}

.modal-content {
    background-color: #fefefe;
    margin: 5% auto;
    padding: 30px;
    border-radius: 12px;
    width: 90%;
    max-width: 500px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
    position: relative;
}

.modal-content h2 {
    margin-top: 0;
    margin-bottom: 25px;
    color: #333;
}

.close {
    position: absolute;
    right: 20px;
    top: 20px;
    font-size: 28px;
    font-weight: bold;
    color: #aaa;
    cursor: pointer;
    line-height: 20px;
}

.close:hover,
.close:focus {
    color: #000;
}

/* Responsive Design */
@media (max-width: 768px) {
    .dashboard-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .active-session-control {
        left: 20px;
        right: 20px;
        max-width: none;
    }
}