/* Admin Styles */

/* Admin Login */
.admin-login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-primary) 0%, #2a6a94 100%);
    padding: var(--spacing-md);
}

.login-card {
    background: white;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    padding: var(--spacing-xl);
    max-width: 400px;
    width: 100%;
}

.login-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.login-logo {
    width: 80px;
    height: auto;
    margin-bottom: var(--spacing-sm);
}

.login-header h1 {
    font-size: 1.75rem;
    color: var(--color-primary);
    margin-bottom: var(--spacing-xs);
}

.login-header p {
    color: #666;
    font-size: 0.9rem;
}

.login-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    font-weight: 600;
    color: var(--color-dark);
    font-size: 0.9rem;
}

.form-input {
    padding: 0.75rem;
    border: 2px solid var(--color-border);
    border-radius: var(--border-radius);
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.form-input:focus {
    outline: none;
    border-color: var(--color-primary);
}

.form-input:disabled {
    background-color: #f5f5f5;
    cursor: not-allowed;
}

.form-input.invalid,
.form-input.validation-error {
    border-color: #dc3545;
}

.validation-message {
    color: #dc3545;
    font-size: 0.85rem;
    margin-top: 0.25rem;
    display: block;
}

.validation-errors {
    color: #dc3545;
    font-size: 0.85rem;
    margin-bottom: 1rem;
}

.validation-errors ul {
    margin: 0.5rem 0;
    padding-left: 1.5rem;
}

.btn-block {
    width: 100%;
}

.alert {
    padding: var(--spacing-sm);
    border-radius: var(--border-radius);
    margin-bottom: var(--spacing-md);
}

.alert-error {
    background-color: #fee;
    border: 1px solid #fcc;
    color: #c33;
}

.login-footer {
    margin-top: var(--spacing-lg);
    text-align: center;
}

.link-secondary {
    color: #666;
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.3s ease;
}

.link-secondary:hover {
    color: var(--color-primary);
}

/* Admin Dashboard */
.admin-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--spacing-lg);
}

.admin-header {
    background-color: var(--color-primary);
    color: white;
    padding: var(--spacing-md) var(--spacing-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
}

.admin-header h1 {
    color: white;
    margin: 0;
}

.admin-nav {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    border-bottom: 2px solid var(--color-border);
}

.admin-nav-item {
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--color-text);
    text-decoration: none;
    border-bottom: 3px solid transparent;
    transition: all 0.3s ease;
}

.admin-nav-item:hover {
    border-bottom-color: var(--color-accent);
}

.admin-nav-item.active {
    border-bottom-color: var(--color-primary);
    color: var(--color-primary);
    font-weight: 600;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.stat-card {
    background: white;
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

.stat-card h3 {
    font-size: 0.9rem;
    color: #666;
    margin-bottom: var(--spacing-xs);
}

.stat-card .stat-value {
    font-size: 2rem;
    font-weight: bold;
    color: var(--color-primary);
}

.stat-card p {
    color: #888;
    font-size: 0.85rem;
    margin-top: 0.5rem;
}

/* Admin Header Actions */
.admin-header-actions {
    display: flex;
    gap: 0.75rem;
}

/* Admin Filters */
.admin-filters {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
    padding: 1rem;
    background: white;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

.stats-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}

/* Tables */
.table-container {
    background: white;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    overflow: hidden;
}

.admin-table {
    width: 100%;
    border-collapse: collapse;
}

.admin-table thead {
    background: var(--color-primary);
    color: white;
}

.admin-table th {
    padding: 1rem;
    text-align: left;
    font-weight: 600;
}

.admin-table td {
    padding: 1rem;
    border-bottom: 1px solid #e0e0e0;
}

.admin-table tbody tr:hover {
    background: #f9f9f9;
}

.admin-table tbody tr:last-child td {
    border-bottom: none;
}

/* Action Buttons */
.action-buttons {
    display: flex;
    gap: 0.5rem;
}

.btn-icon {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1.25rem;
    padding: 0.25rem 0.5rem;
    opacity: 0.6;
    transition: opacity 0.2s;
}

.btn-icon:hover {
    opacity: 1;
}

/* Badges */
.badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 12px;
    font-size: 0.85rem;
    font-weight: 600;
}

.badge-success {
    background: #d4edda;
    color: #155724;
}

.badge-warning {
    background: #fff3cd;
    color: #856404;
}

.badge-error {
    background: #f8d7da;
    color: #721c24;
}

.badge-info {
    background: #d1ecf1;
    color: #0c5460;
}

.badge-quiz {
    background: #e7f3ff;
    color: #1976d2;
}

.badge-inactive {
    background: #e9ecef;
    color: #6c757d;
}

/* Modals */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: 1rem;
}

.modal-content {
    background: white;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    max-width: 600px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
}

.modal-small {
    max-width: 400px;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem;
    border-bottom: 1px solid #e0e0e0;
}

.modal-header h2 {
    margin: 0;
    color: var(--color-primary);
}

.btn-close {
    background: none;
    border: none;
    font-size: 2rem;
    cursor: pointer;
    color: #999;
    line-height: 1;
    padding: 0;
    width: 2rem;
    height: 2rem;
}

.btn-close:hover {
    color: #333;
}

.modal-body {
    padding: 1.5rem;
    max-height: calc(90vh - 200px);
    overflow-y: auto;
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 0.75rem;
    padding: 1.5rem;
    border-top: 1px solid #e0e0e0;
}

/* Utility Classes */
.text-warning {
    color: #856404;
    font-size: 0.9rem;
}

.loading {
    text-align: center;
    padding: 3rem;
    color: #888;
    font-size: 1.1rem;
}

.card {
    background: white;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

.card h2 {
    color: var(--color-primary);
    margin-top: 0;
    margin-bottom: 1rem;
}

/* Button Variants */
.btn-danger {
    background-color: #dc3545;
    color: white;
}

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

/* Lessons Management Specific Styles */
.lessons-grid {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.quarter-section h2 {
    color: var(--color-primary);
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.lessons-cards {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1rem;
}

.lesson-card {
    background: white;
    border: 2px solid #e0e0e0;
    border-radius: var(--border-radius);
    padding: 1rem;
    transition: all 0.2s;
}

.lesson-card.draft {
    border-color: #ffa500;
    background: #fff9f0;
}

.lesson-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.lesson-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
}

.lesson-card h3 {
    color: var(--color-primary);
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
}

.lesson-description {
    color: #666;
    font-size: 0.9rem;
    margin-bottom: 0.75rem;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.lesson-meta {
    display: flex;
    gap: 1rem;
    font-size: 0.85rem;
    color: #888;
}

.lesson-actions {
    display: flex;
    gap: 0.25rem;
}

.btn-icon-small {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1.2rem;
    padding: 0.25rem;
    opacity: 0.6;
    transition: opacity 0.2s;
}

.btn-icon-small:hover {
    opacity: 1;
}

.modal-large {
    max-width: 800px;
    max-height: 90vh;
    overflow-y: auto;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.section-title {
    color: var(--color-primary);
    font-size: 1.2rem;
    margin-top: 1.5rem;
    margin-bottom: 0.75rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--color-accent);
}
/* Quiz Admin Styles */
.quizzes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1rem;
    margin-top: 2rem;
}

.quiz-card {
    background: white;
    border: 2px solid #e0e0e0;
    border-radius: var(--border-radius);
    padding: 1rem;
    transition: all 0.2s;
}

    .quiz-card:hover {
        box-shadow: var(--shadow-lg);
        transform: translateY(-2px);
    }

.quiz-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
}

.quiz-card h3 {
    color: var(--color-primary);
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
}

.quiz-description {
    color: #666;
    font-size: 0.9rem;
    margin-bottom: 0.75rem;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.quiz-meta {
    display: flex;
    gap: 1rem;
    font-size: 0.85rem;
    color: #888;
}

.quiz-actions {
    display: flex;
    gap: 0.25rem;
}

/* Question Editor */
.question-editor {
    background: #f8f9fa;
    border: 2px solid #dee2e6;
    border-radius: 8px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

.question-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

    .question-header h4 {
        margin: 0;
        color: #495057;
    }

/* Answer Editor */
.answers-section {
    margin-top: 1rem;
}

    .answers-section > label {
        display: flex;
        justify-content: space-between;
        align-items: center;
        margin-bottom: 0.75rem;
        font-weight: bold;
    }

.answer-editor {
    background: white;
    border: 2px solid #dee2e6;
    border-radius: 6px;
    padding: 1rem;
    margin-bottom: 0.75rem;
}

    .answer-editor.correct-answer {
        border-color: #27ae60;
        background: #f0f9f4;
    }

.answer-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    cursor: pointer;
}

    .checkbox-label input[type="checkbox"] {
        width: 20px;
        height: 20px;
        cursor: pointer;
    }

/* Modal Sizes */
.modal-xlarge {
    max-width: 1200px;
    width: 95%;
    max-height: 90vh;
    overflow-y: auto;
}

/* Section Title */
.section-title {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
    margin: 1.5rem 0 1rem 0;
    border-bottom: 2px solid #dee2e6;
    color: #2c3e50;
}

/* Button Variants */
.btn-sm {
    padding: 0.375rem 0.75rem;
    font-size: 0.875rem;
    border-radius: 4px;
}

.btn-success {
    background: #27ae60;
    color: white;
    border: none;
}

    .btn-success:hover {
        background: #229954;
    }

.btn-danger {
    background: #e74c3c;
    color: white;
    border: none;
}

    .btn-danger:hover {
        background: #c0392b;
    }

@media (max-width: 768px) {
    .quizzes-grid {
        grid-template-columns: 1fr;
    }

    .modal-xlarge {
        width: 100%;
        max-width: 100%;
        max-height: 100vh;
        border-radius: 0;
    }

    .section-title {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }
}

/* List Item Editor */
.list-item-editor {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
    align-items: center;
}

.list-item-editor .form-input {
    flex: 1;
}

/* Key Concept Editor */
.key-concept-editor {
    background: #f8f9fa;
    border: 2px solid #e0e0e0;
    border-radius: var(--border-radius);
    padding: 1rem;
    margin-bottom: 1rem;
}

.key-concept-editor .form-row {
    margin-bottom: 0.75rem;
}

/* Resource Editor */
.resource-editor {
    background: #f8f9fa;
    border: 2px solid #e0e0e0;
    border-radius: var(--border-radius);
    padding: 1rem;
    margin-bottom: 1rem;
}

.resource-editor .form-row {
    margin-bottom: 0.75rem;
}

.resource-editor .form-input {
    margin-bottom: 0.5rem;
}