/* Clinical Topics Page Styles */

/* Page Header */
.page-header-clinical {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
    position: relative;
    overflow: hidden;
}

.page-header-clinical::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(circle at 20% 80%, rgba(16, 185, 129, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(56, 189, 248, 0.15) 0%, transparent 50%);
    pointer-events: none;
}

/* How to Use Section */
.how-to-use {
    padding: 4rem 0;
    background: var(--surface-subtle);
}

.use-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.use-card {
    background: var(--surface-primary);
    border-radius: 16px;
    padding: 2rem;
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.use-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.use-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.use-number {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 700;
    color: var(--accent-primary);
    margin-bottom: 1rem;
    opacity: 0.5;
}

.use-card h3 {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    color: var(--text-primary);
    margin-bottom: 0.75rem;
}

.use-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* Topics Section */
.topics-section {
    padding: 5rem 0;
}

.systems-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1.25rem;
    margin-top: 2rem;
}

.system-card {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    padding: 1.25rem 1.5rem;
    background: var(--surface-primary);
    border: 1px solid var(--border-primary);
    border-radius: 10px;
    text-decoration: none;
    transition: all 0.2s ease;
}

.system-card:hover {
    border-color: var(--accent-primary);
    background: var(--surface-subtle);
}

.system-name {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.system-count {
    font-size: 0.85rem;
    color: var(--text-tertiary);
}

/* Sample Topics Section */
.sample-topics {
    padding: 5rem 0;
    background: var(--surface-subtle);
}

/* Topic Card */
.topic-card {
    background: var(--surface-primary);
    border-radius: 20px;
    padding: 2.5rem;
    margin-bottom: 2rem;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-primary);
}

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

.topic-system {
    font-size: 0.9rem;
    color: var(--text-tertiary);
}

.topic-badge {
    padding: 0.35rem 1rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.badge-free {
    background: linear-gradient(135deg, #10b981, #059669);
    color: white;
}

.badge-pro {
    background: linear-gradient(135deg, #8b5cf6, #7c3aed);
    color: white;
}

.topic-card > h3 {
    font-family: var(--font-heading);
    font-size: 2rem;
    color: var(--text-primary);
    margin-bottom: 2rem;
}

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

.topic-section h4 {
    font-size: 1.1rem;
    color: var(--text-primary);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* Explanation Box */
.explanation-box {
    background: linear-gradient(135deg, #f0fdf4 0%, #dcfce7 100%);
    border-left: 4px solid var(--accent-primary);
    padding: 1.5rem;
    border-radius: 0 12px 12px 0;
}

[data-theme="dark"] .explanation-box {
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.15) 0%, rgba(5, 150, 105, 0.1) 100%);
}

.explanation-box p {
    font-size: 1.05rem;
    line-height: 1.7;
    color: var(--text-primary);
}

.explanation-box strong {
    color: var(--accent-primary);
}

/* Symptom List */
.symptom-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.symptom-list li {
    padding: 0.5rem 0 0.5rem 1.75rem;
    position: relative;
    color: var(--text-secondary);
}

.symptom-list li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--accent-primary);
    font-weight: bold;
    font-size: 1.2rem;
}

/* Two Column Symptoms */
.symptoms-two-col {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.symptoms-two-col > div > strong {
    display: block;
    color: var(--text-primary);
    margin-bottom: 0.75rem;
    font-size: 1rem;
}

/* Differentials Grid */
.differentials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1rem;
}

.differential {
    background: var(--surface-secondary);
    padding: 1rem 1.25rem;
    border-radius: 10px;
    border-left: 3px solid #f59e0b;
}

.differential strong {
    display: block;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.differential span {
    font-size: 0.85rem;
    color: var(--text-tertiary);
}

/* Management List */
.management-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.management-item {
    background: var(--surface-secondary);
    padding: 1rem 1.25rem;
    border-radius: 10px;
    border-left: 3px solid var(--accent-primary);
}

.management-label {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.management-item p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin: 0;
}

/* Safety Net Box */
.safety-net-box {
    border-radius: 12px;
    overflow: hidden;
}

.safety-urgent {
    background: #fef2f2;
    border-left: 4px solid #ef4444;
    padding: 1rem 1.25rem;
    margin-bottom: 0.5rem;
}

[data-theme="dark"] .safety-urgent {
    background: rgba(239, 68, 68, 0.1);
}

.safety-routine {
    background: var(--surface-secondary);
    border-left: 4px solid #f59e0b;
    padding: 1rem 1.25rem;
}

.safety-net-box strong {
    display: block;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
}

.safety-net-box ul {
    margin: 0;
    padding-left: 1.25rem;
}

.safety-net-box li {
    color: var(--text-secondary);
    margin-bottom: 0.25rem;
    font-size: 0.9rem;
}

/* Topic Footer */
.topic-footer {
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-primary);
}

.topic-resource {
    font-size: 0.9rem;
    color: var(--text-tertiary);
}

.topic-resource a {
    color: var(--accent-primary);
    text-decoration: none;
}

.topic-resource a:hover {
    text-decoration: underline;
}

/* Locked Topics Section */
.locked-topics {
    padding: 5rem 0;
}

.locked-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 1rem;
    margin: 2rem 0 3rem;
}

.locked-card {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
    padding: 1rem 1.25rem;
    background: var(--surface-secondary);
    border-radius: 10px;
    border: 1px solid var(--border-primary);
    opacity: 0.8;
    transition: all 0.2s ease;
    position: relative;
}

.locked-card::before {
    content: '🔒';
    position: absolute;
    top: 0.5rem;
    right: 0.75rem;
    font-size: 0.85rem;
    opacity: 0.5;
}

.locked-card:hover {
    opacity: 1;
    border-color: #8b5cf6;
    background: var(--surface-primary);
}

.locked-system {
    font-size: 0.75rem;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 600;
}

.locked-name {
    font-size: 0.95rem;
    color: var(--text-primary);
    font-weight: 500;
}

.unlock-cta {
    text-align: center;
}

/* CTA Section */
.cta-section {
    padding: 5rem 0;
    background: linear-gradient(135deg, var(--accent-primary) 0%, #059669 100%);
    text-align: center;
}

.cta-content h2 {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    color: white;
    margin-bottom: 1rem;
}

.cta-content p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.1rem;
    margin-bottom: 2rem;
}

.cta-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.btn-white {
    background: white;
    color: var(--accent-primary);
}

.btn-white:hover {
    background: #f0fdf4;
}

.btn-outline-white {
    background: transparent;
    color: white;
    border: 2px solid white;
}

.btn-outline-white:hover {
    background: rgba(255, 255, 255, 0.1);
}

/* Responsive */
@media (max-width: 768px) {
    .topic-card {
        padding: 1.5rem;
    }

    .topic-card > h3 {
        font-size: 1.5rem;
    }

    .explanation-box {
        padding: 1rem;
    }

    .systems-grid {
        grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    }

    .cta-content h2 {
        font-size: 1.75rem;
    }
}