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a,.slide-nav a{background:var(--accent-primary);color:#fff;transition:background .2s ease}.disease-nav a:hover,.slide-nav a:hover{background:var(--accent-hover)}footer{background:var(--bg-primary);color:var(--text-primary);border-top:1px solid var(--border-color)}footer a{color:var(--accent-primary)}.note{color:var(--text-secondary);background:var(--bg-accent);padding:.5rem;border-left:3px solid var(--accent-primary);margin:.5rem 0}.theme-switcher{position:fixed;bottom:2rem;right:2rem;background:var(--bg-primary);border:1px solid var(--border-color);border-radius:8px;padding:1rem;box-shadow:var(--shadow);z-index:1000}.theme-switcher h4{margin:0 0 .5rem;font-size:.9rem;color:var(--text-secondary)}.theme-buttons{display:flex;gap:.5rem;flex-wrap:wrap}.theme-button{width:40px;height:40px;border:2px solid var(--border-color);border-radius:50%;cursor:pointer;transition:transform .2s 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