/* Conditions nav styles */
.conditions-nav {
    position: sticky;
    top: 80px;
    background-color: white;
    border-bottom: 1px solid var(--neutral-300);
    z-index: 100;
    box-shadow: var(--shadow-sm);
}

.conditions-nav-list {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
    overflow-x: auto;
    white-space: nowrap;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none; /* Firefox */
}

.conditions-nav-list::-webkit-scrollbar {
    display: none; /* Chrome, Safari, Edge */
}

.conditions-nav-list li {
    margin: 0;
}

.condition-nav-link {
    display: inline-block;
    padding: var(--space-md) var(--space-lg);
    color: var(--neutral-700);
    text-decoration: none;
    font-weight: 600;
    position: relative;
    transition: color var(--transition-fast);
}

.condition-nav-link:hover {
    color: var(--primary-color);
    text-decoration: none;
}

.condition-nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 3px;
    background-color: var(--primary-color);
    transition: all var(--transition-normal);
    transform: translateX(-50%);
}

.condition-nav-link:hover::after {
    width: 30px;
}

.condition-nav-link.active {
    color: var(--primary-color);
}

.condition-nav-link.active::after {
    width: 30px;
}

/* Condition section styles */
.condition-section {
    padding: var(--space-xxl) 0;
    border-bottom: 1px solid var(--neutral-300);
}

.condition-section:last-of-type {
    border-bottom: none;
}

.condition-section.alternate {
    background-color: var(--neutral-200);
}

.condition-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--space-xl);
}

.condition-info h2 {
    color: var(--primary-color);
    margin-bottom: var(--space-md);
    font-size: 2.2rem;
}

.condition-intro {
    font-size: 1.2rem;
    line-height: 1.6;
    margin-bottom: var(--space-lg);
    color: var(--neutral-700);
}

.condition-info h3 {
    color: var(--primary-dark);
    margin-top: var(--space-xl);
    margin-bottom: var(--space-sm);
    font-size: 1.4rem;
}

.condition-list {
    margin-bottom: var(--space-lg);
}

.condition-list li {
    margin-bottom: var(--space-xs);
}

.condition-cta {
    margin-top: var(--space-xl);
}

/* Condition sidebar styles */
.condition-sidebar {
    position: sticky;
    top: 150px;
    align-self: flex-start;
}

.condition-image {
    margin-bottom: var(--space-lg);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.condition-image img {
    width: 100%;
    height: auto;
    display: block;
}

.condition-facts {
    background-color: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    padding: var(--space-lg);
}

.condition-facts h3 {
    margin-top: 0;
    margin-bottom: var(--space-md);
    color: var(--primary-color);
    font-size: 1.2rem;
}

.fact-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.fact-list li {
    border-bottom: 1px solid var(--neutral-300);
    padding-bottom: var(--space-sm);
    margin-bottom: var(--space-sm);
}

.fact-list li:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

/* Research advances section */
.research-advances {
    background-color: var(--neutral-100);
    padding: var(--space-xxl) 0;
}

.advances-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-lg);
    margin-top: var(--space-xl);
}

.advance-card {
    background-color: white;
    padding: var(--space-lg);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-normal);
}

.advance-card:hover {
    transform: translateY(-5px);
}

.advance-icon {
    width: 60px;
    height: 60px;
    margin-bottom: var(--space-md);
    background-color: rgba(0, 86, 179, 0.1);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
}

.advance-card h3 {
    color: var(--primary-color);
    margin-bottom: var(--space-sm);
}

.advance-card p {
    margin-bottom: 0;
    color: var(--neutral-700);
}

/* Placeholder illustration styles */
.placeholder-illustration {
    background-color: #f0f8ff;
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    text-align: center;
    height: 100%;
    min-height: 250px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    border: 1px solid rgba(0, 86, 179, 0.2);
}

.placeholder-illustration .icon {
    width: 80px;
    height: 80px;
    margin-bottom: var(--space-md);
}

.placeholder-illustration h3 {
    margin-top: var(--space-sm) !important;
    margin-bottom: var(--space-sm) !important;
    color: var(--primary-color) !important;
    font-size: 1.2rem !important;
}

.placeholder-illustration p {
    margin-bottom: 0;
    font-size: 0.9rem;
    color: var(--neutral-700);
    max-width: 250px;
}

.asthma-illustration {
    background-color: rgba(0, 86, 179, 0.05);
}

.copd-illustration {
    background-color: rgba(0, 86, 179, 0.05);
}

.bronchiectasis-illustration {
    background-color: rgba(0, 86, 179, 0.05);
}

.cough-illustration {
    background-color: rgba(0, 86, 179, 0.05);
}

/* Responsive styles */
@media (max-width: 992px) {
    .condition-content {
        grid-template-columns: 1fr;
    }
    
    .condition-sidebar {
        position: static;
        max-width: 600px;
        margin: 0 auto;
    }
    
    .condition-image {
        max-width: 100%;
    }
}

@media (max-width: 768px) {
    .conditions-nav {
        top: 60px;
    }
    
    .condition-nav-link {
        padding: var(--space-sm) var(--space-md);
        font-size: 0.9rem;
    }
    
    .condition-section {
        padding: var(--space-xl) 0;
    }
    
    .condition-info h2 {
        font-size: 1.8rem;
    }
    
    .condition-intro {
        font-size: 1.1rem;
    }
    
    .condition-info h3 {
        font-size: 1.3rem;
    }
    
    .advance-card {
        padding: var(--space-md);
    }
}