/* Homework Modal Styles */

.homework-overview-card {
    transition: all 0.3s ease;
    border: 1px solid #e0e0e0;
}

.homework-overview-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.1);
    border-color: var(--primary-purple);
}

.homework-overview-card .card__action-hint {
    font-size: 0.8rem;
    color: #666;
    font-style: italic;
}

.homework-summary-display .homework-stats {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 15px;
}

.homework-summary-display .homework-stats span {
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
    white-space: nowrap;
}

.homework-pending {
    background: #fff3cd;
    color: #856404;
    border: 1px solid #ffeeba;
}

.homework-completed {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.homework-overdue {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.homework-none {
    background: #f8f9fa;
    color: #6c757d;
    border: 1px solid #dee2e6;
}

.homework-stats-loading {
    color: #666;
    font-style: italic;
    padding: 10px 0;
}

/* Modal Styles */
.large-modal {
    max-width: 900px;
    width: 90%;
    max-height: 85vh;
    margin: 2% auto;
}

.modal-title-section {
    flex: 1;
}

.modal-subtitle {
    margin: 0;
    color: #666;
    font-size: 0.9rem;
    font-weight: normal;
}

.modal-actions {
    display: flex;
    align-items: center;
    gap: 15px;
}

.homework-modal-content {
    max-height: 60vh;
    overflow-y: auto;
    padding-right: 10px;
}

/* Empty States */
.no-homework-state, .error-state {
    text-align: center;
    padding: 60px 20px;
}

.no-homework-icon, .error-icon {
    font-size: 4rem;
    margin-bottom: 20px;
    opacity: 0.7;
}

.no-homework-state h4, .error-state h4 {
    color: #333;
    margin-bottom: 10px;
    font-size: 1.3rem;
}

.no-homework-state p, .error-state p {
    color: #666;
    margin-bottom: 25px;
    font-size: 1rem;
}

/* Section Headers */
.homework-section {
    margin-bottom: 35px;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 2px solid #f0f0f0;
}

.section-title {
    margin: 0;
    font-size: 1.2rem;
    color: #333;
}

.section-badge {
    padding: 4px 12px;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.section-badge.overdue {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.section-badge.pending {
    background: #fff3cd;
    color: #856404;
    border: 1px solid #ffeeba;
}

.section-badge.completed {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

/* Homework Cards Grid */
.homework-cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 20px;
    margin-bottom: 20px;
}

/* Individual Homework Cards */
.homework-card {
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
    border: 1px solid #e0e0e0;
    transition: all 0.3s ease;
    overflow: hidden;
}

.homework-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
}

.homework-card.overdue {
    border-left: 4px solid #dc3545;
}

.homework-card.pending {
    border-left: 4px solid #ffc107;
}

.homework-card.completed {
    border-left: 4px solid #28a745;
}

/* Card Header */
.homework-card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    padding: 20px 20px 15px 20px;
    background: #f8f9fa;
    border-bottom: 1px solid #e9ecef;
}

.homework-title-section {
    flex: 1;
    margin-right: 15px;
}

.homework-title {
    margin: 0 0 8px 0;
    font-size: 1.1rem;
    font-weight: 600;
    color: #333;
    line-height: 1.3;
}

.homework-subject-tag {
    display: inline-block;
    padding: 3px 8px;
    background: #e9ecef;
    color: #495057;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.homework-status-badge {
    padding: 6px 10px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    white-space: nowrap;
    text-transform: capitalize;
}

.homework-status-badge.overdue {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.homework-status-badge.pending {
    background: #fff3cd;
    color: #856404;
    border: 1px solid #ffeeba;
}

.homework-status-badge.completed {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

/* Card Body */
.homework-card-body {
    padding: 20px;
}

.homework-description {
    margin-bottom: 18px;
}

.homework-description p {
    margin: 0;
    color: #555;
    line-height: 1.5;
    font-size: 0.95rem;
}

.homework-meta-info {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 18px;
    padding: 15px;
    background: #f8f9fa;
    border-radius: 8px;
}

.homework-meta-info > div {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.meta-label {
    font-weight: 500;
    color: #666;
    font-size: 0.9rem;
}

.meta-value {
    color: #333;
    font-weight: 500;
    font-size: 0.9rem;
}

.meta-value.overdue-date {
    color: #dc3545;
    font-weight: 600;
}

.overdue-notice {
    color: #dc3545;
    font-size: 0.8rem;
    font-weight: 600;
    margin-left: 8px;
}

/* Attachments */
.homework-attachments {
    margin-top: 15px;
}

.attachments-label {
    font-weight: 500;
    color: #666;
    margin-bottom: 8px;
    font-size: 0.9rem;
}

.attachments-list {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.attachment-item {
    background: #f8f9fa;
    border: 1px solid #e9ecef;
    border-radius: 6px;
    overflow: hidden;
}

.attachment-link {
    display: block;
    padding: 8px 12px;
    color: #007bff;
    text-decoration: none;
    font-size: 0.9rem;
    transition: all 0.2s ease;
}

.attachment-link:hover {
    background: #e9ecef;
    color: #0056b3;
}

/* Card Actions */
.homework-card-actions {
    display: flex;
    justify-content: flex-end;
    gap: 8px;
    padding: 15px 20px 20px 20px;
    border-top: 1px solid #f0f0f0;
}

.homework-card-actions .btn {
    padding: 6px 12px;
    font-size: 0.8rem;
    border-radius: 6px;
    border: 1px solid transparent;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-xs {
    padding: 4px 8px;
    font-size: 0.75rem;
}

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

.btn--primary:hover {
    background: #0056b3;
    border-color: #0056b3;
}

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

.btn--secondary:hover {
    background: #545b62;
    border-color: #545b62;
}

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

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

/* Responsive Design */
@media (max-width: 768px) {
    .large-modal {
        width: 95%;
        margin: 1% auto;
        max-height: 90vh;
    }

    .homework-cards-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }

    .section-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }

    .homework-card-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }

    .homework-title-section {
        margin-right: 0;
        width: 100%;
    }

    .homework-meta-info > div {
        flex-direction: column;
        align-items: flex-start;
        gap: 4px;
    }

    .homework-card-actions {
        flex-wrap: wrap;
        gap: 6px;
    }

    .homework-summary-display .homework-stats {
        flex-direction: column;
        gap: 8px;
    }

    .homework-summary-display .homework-stats span {
        text-align: center;
    }
}

/* Loading States */
.loading-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 60px 20px;
    color: #666;
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 4px solid #f3f3f3;
    border-top: 4px solid #007bff;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 20px;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}