/* ==============================================
   Clinical Cases Styles
   ============================================== */

/* Cases Intro */
.cases-intro {
    text-align: center;
    padding: 2rem;
    margin-bottom: 2rem;
}

.cases-intro i {
    font-size: 4rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.cases-intro h2 {
    margin: 0 0 0.5rem 0;
    color: var(--text-primary);
}

.cases-intro p {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

/* Categories Grid */
.cases-categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 2rem;
}

.case-category-card {
    background: var(--surface);
    border: 2px solid var(--border);
    border-radius: 12px;
    padding: 2rem;
    text-align: center;
    transition: all 0.3s ease;
    cursor: pointer;
}

.case-category-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
    border-color: var(--primary-color);
}

.category-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.category-icon i {
    font-size: 2.5rem;
    color: white;
}

.case-category-card h3 {
    margin: 0 0 0.5rem 0;
    color: var(--text-primary);
}

.case-category-card p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

/* Breadcrumb */
.cases-breadcrumb {
    margin-bottom: 1.5rem;
}

.btn-link {
    background: none;
    border: none;
    color: var(--primary-color);
    font-size: 1rem;
    cursor: pointer;
    padding: 0.5rem 0;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s ease;
}

.btn-link:hover {
    text-decoration: underline;
    gap: 0.75rem;
}

/* Category Header */
.cases-category-header {
    background: var(--surface);
    padding: 1.5rem;
    border-radius: 8px;
    margin-bottom: 2rem;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.cases-category-header i {
    font-size: 2rem;
    color: var(--primary-color);
}

.cases-category-header h2 {
    margin: 0;
    color: var(--text-primary);
}

/* Cases List */
.cases-list {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.case-list-card {
    background: var(--surface);
    border: 2px solid var(--border);
    border-radius: 12px;
    padding: 2rem;
    transition: all 0.3s ease;
}

.case-list-card:hover {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.case-card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 1rem;
}

.case-card-header h3 {
    flex: 1;
    margin: 0;
    color: var(--text-primary);
    font-size: 1.25rem;
}

.case-difficulty {
    display: inline-block;
    padding: 0.4rem 0.8rem;
    border-radius: 12px;
    color: white;
    font-size: 0.85rem;
    font-weight: 600;
    white-space: nowrap;
}

.case-meta {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.case-meta span {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.case-meta i {
    color: var(--primary-color);
}

.case-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.case-tag {
    background: var(--surface-alt);
    color: var(--text-secondary);
    padding: 0.3rem 0.7rem;
    border-radius: 12px;
    font-size: 0.8rem;
    border: 1px solid var(--border);
}

/* Case Header */
.case-header {
    background: var(--surface);
    padding: 2rem;
    border-radius: 12px;
    margin-bottom: 2rem;
}

.case-header h2 {
    margin: 0 0 1rem 0;
    color: var(--text-primary);
}

.case-header-meta {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.case-header-meta span {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
}

/* Case Stepper */
.case-stepper {
    display: flex;
    justify-content: space-between;
    margin-bottom: 2rem;
    position: relative;
}

.case-stepper::before {
    content: '';
    position: absolute;
    top: 20px;
    left: 10%;
    right: 10%;
    height: 2px;
    background: var(--border);
    z-index: 0;
}

.case-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    flex: 1;
    cursor: pointer;
    position: relative;
    z-index: 1;
}

.step-number {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--surface-alt);
    border: 2px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    color: var(--text-secondary);
    transition: all 0.3s ease;
}

.case-step.active .step-number {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
}

.case-step.visited .step-number {
    background: #10b981;
    border-color: #10b981;
    color: white;
}

.step-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.case-step.active .step-label {
    color: var(--primary-color);
    font-weight: 600;
}

/* Case Content */
.case-content-area {
    background: var(--surface);
    border: 2px solid var(--border);
    border-radius: 12px;
    padding: 2rem;
    margin-bottom: 2rem;
    min-height: 400px;
}

.case-section {
    margin-bottom: 2rem;
}

.case-section h3 {
    color: var(--text-primary);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.case-section h3 i {
    color: var(--primary-color);
}

.case-section-content {
    color: var(--text-primary);
    line-height: 1.8;
}

.case-section-content h4 {
    color: var(--text-primary);
    margin-top: 1.5rem;
    margin-bottom: 0.75rem;
}

.case-section-content ul, .case-section-content ol {
    margin-left: 1.5rem;
    margin-bottom: 1rem;
}

.case-section-content li {
    margin-bottom: 0.5rem;
}

.case-section-content strong {
    color: var(--primary-color);
    font-weight: 600;
}

.case-section-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 1rem 0;
}

.case-section-content th, .case-section-content td {
    padding: 0.75rem;
    border: 1px solid var(--border);
    text-align: left;
}

.case-section-content th {
    background: var(--surface-alt);
    font-weight: 600;
}

/* Info Boxes */
.info-box, .success-box {
    background: var(--surface-alt);
    border-left: 4px solid var(--primary-color);
    padding: 1.5rem;
    border-radius: 6px;
    margin: 1.5rem 0;
}

.success-box {
    border-left-color: #10b981;
}

.success-box h4 {
    color: #10b981;
}

/* Questions */
.case-question {
    background: var(--background);
    border: 2px solid var(--border);
    border-radius: 12px;
    padding: 1.5rem;
    margin-bottom: 2rem;
}

.case-question h4 {
    margin: 0 0 1rem 0;
    color: var(--primary-color);
}

.question-text {
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 1.5rem;
}

.question-options {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.question-option {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: var(--surface);
    border: 2px solid var(--border);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.question-option:hover {
    border-color: var(--primary-color);
    transform: translateX(4px);
}

.case-question.answered .question-option {
    cursor: default;
}

.case-question.answered .question-option:hover {
    transform: none;
}

.option-letter {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--surface-alt);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    color: var(--text-primary);
    flex-shrink: 0;
}

.option-text {
    flex: 1;
    color: var(--text-primary);
}

.question-option i {
    font-size: 1.5rem;
}

.question-option.correct {
    border-color: #10b981;
    background: rgba(16, 185, 129, 0.1);
}

.question-option.correct .option-letter {
    background: #10b981;
    color: white;
}

.question-option.correct i {
    color: #10b981;
}

.question-option.incorrect {
    border-color: #ef4444;
    background: rgba(239, 68, 68, 0.1);
}

.question-option.incorrect .option-letter {
    background: #ef4444;
    color: white;
}

.question-option.incorrect i {
    color: #ef4444;
}

.question-explanation {
    margin-top: 1.5rem;
    padding: 1.5rem;
    border-radius: 8px;
    border-left: 4px solid #10b981;
}

.question-explanation.incorrect-answer {
    border-left-color: #ef4444;
}

.question-explanation h5 {
    margin: 0 0 1rem 0;
    color: #10b981;
}

.question-explanation.incorrect-answer h5 {
    color: #ef4444;
}

/* Score */
.case-score {
    background: var(--surface);
    border: 2px solid var(--border);
    border-radius: 12px;
    padding: 2rem;
    margin-top: 2rem;
}

.case-score h3 {
    margin: 0 0 1.5rem 0;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.score-summary {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.score-circle {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    background: var(--primary-color);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.score-value {
    font-size: 2rem;
    font-weight: 700;
    color: white;
}

.score-label {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.9);
}

.score-feedback {
    flex: 1;
    font-size: 1.2rem;
    color: var(--text-primary);
}

/* References */
.case-references {
    padding-left: 1.5rem;
}

.case-references li {
    margin-bottom: 0.75rem;
    line-height: 1.6;
}

/* Navigation */
.case-navigation {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
}

/* Responsive */
@media (max-width: 768px) {
    .cases-categories-grid {
        grid-template-columns: 1fr;
    }
    
    .case-stepper {
        flex-wrap: wrap;
        gap: 1rem;
    }
    
    .case-stepper::before {
        display: none;
    }
    
    .case-step {
        flex-direction: row;
        flex: 0 0 calc(50% - 0.5rem);
    }
    
    .case-meta {
        flex-direction: column;
        gap: 0.75rem;
    }
    
    .score-summary {
        flex-direction: column;
        text-align: center;
    }
    
    .case-navigation {
        flex-direction: column;
    }
}

/* Dark Theme */
[data-theme="dark"] .case-category-card,
[data-theme="dark"] .case-list-card,
[data-theme="dark"] .case-header,
[data-theme="dark"] .case-content-area,
[data-theme="dark"] .case-question,
[data-theme="dark"] .case-score {
    background: #1e293b;
    border-color: #334155;
}

[data-theme="dark"] .info-box,
[data-theme="dark"] .success-box {
    background: #0f172a;
}

[data-theme="dark"] .question-option {
    background: #0f172a;
    border-color: #334155;
}

[data-theme="dark"] .case-tag {
    background: #334155;
    border-color: #475569;
}