:root{--color-bg-primary: #fdfbf7;--color-bg-secondary: #f5f0e8;--color-bg-tertiary: #ebe4d8;--color-bg-panel: #ffffff;--color-text-primary: #2c2416;--color-text-secondary: #5a4d3a;--color-text-tertiary: #8b7d68;--color-text-muted: #a89c86;--color-accent-primary: #8b5a2b;--color-accent-secondary: #a67c52;--color-accent-warm: #c4956a;--color-accent-highlight: #d4a574;--color-structure-default: #d8cfc0;--color-structure-hover: #c9a882;--color-structure-selected: #a67c52;--color-structure-stroke: #8b7d68;--color-border: #e0d8cc;--color-border-subtle: #ebe4d8;--color-shadow: rgba(44, 36, 22, .08);--color-shadow-strong: rgba(44, 36, 22, .15);--font-serif: "Crimson Pro", Georgia, "Times New Roman", serif;--font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;--font-mono: "JetBrains Mono", "SF Mono", Consolas, monospace;--spacing-xs: .25rem;--spacing-sm: .5rem;--spacing-md: 1rem;--spacing-lg: 1.5rem;--spacing-xl: 2rem;--spacing-2xl: 3rem;--transition-fast: .12s ease-out;--transition-normal: .2s ease-out;--transition-slow: .35s ease-out;--radius-sm: 4px;--radius-md: 6px;--radius-lg: 10px}*,*:before,*:after{box-sizing:border-box}html{font-size:16px;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{margin:0;padding:0;font-family:var(--font-sans);font-size:.9375rem;line-height:1.6;color:var(--color-text-primary);background-color:var(--color-bg-primary)}h1,h2,h3,h4,h5,h6{font-family:var(--font-serif);font-weight:500;line-height:1.3;margin:0 0 var(--spacing-sm) 0;color:var(--color-text-primary)}p{margin:0 0 var(--spacing-md) 0}a{color:var(--color-accent-primary);text-decoration:none;transition:color var(--transition-fast)}a:hover{color:var(--color-accent-secondary)}ul{margin:0;padding:0;list-style:none}button{font-family:inherit;cursor:pointer;border:none;background:none;padding:0}.app{min-height:100vh;display:flex;flex-direction:column}.header{background-color:var(--color-bg-panel);border-bottom:1px solid var(--color-border);padding:var(--spacing-lg) var(--spacing-xl)}.header-content{max-width:1400px;margin:0 auto}.title{font-size:1.75rem;font-weight:600;letter-spacing:-.02em;margin-bottom:var(--spacing-xs)}.subtitle{font-size:.875rem;color:var(--color-text-tertiary);margin:0}.main{flex:1;padding:var(--spacing-lg) var(--spacing-xl);max-width:1400px;margin:0 auto;width:100%}.footer{background-color:var(--color-bg-secondary);border-top:1px solid var(--color-border);padding:var(--spacing-md) var(--spacing-xl);text-align:center;font-size:.8125rem;color:var(--color-text-tertiary)}.footer p{margin:var(--spacing-xs) 0}.view-switcher{display:flex;gap:var(--spacing-sm);margin-bottom:var(--spacing-lg)}.view-btn{display:flex;align-items:center;gap:var(--spacing-sm);padding:var(--spacing-sm) var(--spacing-md);font-size:.875rem;font-weight:500;color:var(--color-text-secondary);background-color:var(--color-bg-panel);border:1px solid var(--color-border);border-radius:var(--radius-md);transition:all var(--transition-fast)}.view-btn:hover{background-color:var(--color-bg-secondary);border-color:var(--color-accent-secondary)}.view-btn.active{background-color:var(--color-accent-primary);border-color:var(--color-accent-primary);color:#fff}.view-icon{font-size:.75rem}.content-grid{display:grid;grid-template-columns:1fr 380px;gap:var(--spacing-xl);align-items:start}@media(max-width:1024px){.content-grid{grid-template-columns:1fr}}.diagram-panel{position:relative;background-color:var(--color-bg-panel);border:1px solid var(--color-border);border-radius:var(--radius-lg);overflow:hidden;box-shadow:0 2px 8px var(--color-shadow)}.diagram-container{position:relative;min-height:600px;display:flex;align-items:center;justify-content:center;padding:var(--spacing-xl);background:linear-gradient(135deg,var(--color-bg-primary) 0%,var(--color-bg-secondary) 100%);overflow:hidden}.diagram-wrapper{display:none;width:100%;height:100%;transition:opacity var(--transition-slow)}.diagram-wrapper[data-active=true]{display:flex;align-items:center;justify-content:center}.diagram-wrapper svg{max-width:100%;max-height:550px;width:auto;height:auto;transition:transform var(--transition-normal)}.diagram-controls{position:absolute;bottom:var(--spacing-md);right:var(--spacing-md);display:flex;gap:var(--spacing-xs);background-color:var(--color-bg-panel);border:1px solid var(--color-border);border-radius:var(--radius-md);padding:var(--spacing-xs);box-shadow:0 2px 8px var(--color-shadow)}.control-btn{width:32px;height:32px;display:flex;align-items:center;justify-content:center;font-size:1.125rem;color:var(--color-text-secondary);border-radius:var(--radius-sm);transition:all var(--transition-fast)}.control-btn:hover{background-color:var(--color-bg-secondary);color:var(--color-text-primary)}.control-btn:active{background-color:var(--color-bg-tertiary)}.diagram-wrapper svg [id^=UBERON_],.diagram-wrapper svg [id^=CL_]{fill:var(--color-structure-default)!important;stroke:var(--color-structure-stroke)!important;stroke-width:.5px!important;cursor:pointer;transition:fill var(--transition-fast),stroke var(--transition-fast)}.diagram-wrapper svg [id^=UBERON_] path,.diagram-wrapper svg [id^=UBERON_] polygon,.diagram-wrapper svg [id^=UBERON_] ellipse,.diagram-wrapper svg [id^=UBERON_] circle,.diagram-wrapper svg [id^=UBERON_] rect,.diagram-wrapper svg [id^=CL_] path,.diagram-wrapper svg [id^=CL_] polygon,.diagram-wrapper svg [id^=CL_] ellipse,.diagram-wrapper svg [id^=CL_] circle,.diagram-wrapper svg [id^=CL_] rect{fill:inherit!important;stroke:inherit!important;stroke-width:inherit!important;cursor:pointer}.diagram-wrapper svg [id^=UBERON_]:hover,.diagram-wrapper svg [id^=CL_]:hover{fill:var(--color-structure-hover)!important;stroke:var(--color-accent-primary)!important;stroke-width:1px!important}.diagram-wrapper svg [id^=UBERON_].selected,.diagram-wrapper svg [id^=CL_].selected{fill:var(--color-structure-selected)!important;stroke:var(--color-accent-primary)!important;stroke-width:1.5px!important}.diagram-wrapper svg #LAYER_OUTLINE path,.diagram-wrapper svg #human_male_outline{fill:#a0a1a2!important;stroke:none!important;cursor:default}.info-panel{background-color:var(--color-bg-panel);border:1px solid var(--color-border);border-radius:var(--radius-lg);box-shadow:0 2px 8px var(--color-shadow);overflow:hidden}.info-header{padding:var(--spacing-lg);border-bottom:1px solid var(--color-border-subtle);background-color:var(--color-bg-secondary)}.info-title{font-size:1.25rem;margin-bottom:var(--spacing-xs)}.ontology-id{font-family:var(--font-mono);font-size:.75rem;color:var(--color-text-tertiary);background-color:var(--color-bg-tertiary);padding:2px 6px;border-radius:var(--radius-sm)}.tabs{display:flex;border-bottom:1px solid var(--color-border-subtle);background-color:var(--color-bg-secondary);padding:0 var(--spacing-md)}.tab{padding:var(--spacing-sm) var(--spacing-md);font-size:.8125rem;font-weight:500;color:var(--color-text-tertiary);border-bottom:2px solid transparent;margin-bottom:-1px;transition:all var(--transition-fast)}.tab:hover{color:var(--color-text-secondary)}.tab.active{color:var(--color-accent-primary);border-bottom-color:var(--color-accent-primary)}.tab-content{padding:var(--spacing-lg);min-height:300px}.tab-pane{display:none}.tab-pane.active{display:block}.placeholder-message{text-align:center;color:var(--color-text-tertiary);padding:var(--spacing-xl) var(--spacing-md)}.placeholder-message .hint{font-size:.8125rem;color:var(--color-text-muted)}.info-content h3{font-size:.875rem;font-weight:600;text-transform:uppercase;letter-spacing:.05em;color:var(--color-text-tertiary);margin-top:var(--spacing-lg);margin-bottom:var(--spacing-sm)}.info-content h3:first-child{margin-top:0}.info-content p{color:var(--color-text-secondary);line-height:1.7}.facts-list li,.related-list li,.conditions-list li,.reading-list li{position:relative;padding-left:var(--spacing-md);margin-bottom:var(--spacing-sm);color:var(--color-text-secondary)}.facts-list li:before,.related-list li:before,.conditions-list li:before,.reading-list li:before{content:"•";position:absolute;left:0;color:var(--color-accent-secondary)}.related-list li{cursor:pointer;transition:color var(--transition-fast)}.related-list li:hover{color:var(--color-accent-primary)}.reference-links{display:flex;flex-wrap:wrap;gap:var(--spacing-sm)}.reference-links a{display:inline-block;padding:var(--spacing-xs) var(--spacing-sm);font-family:var(--font-mono);font-size:.75rem;background-color:var(--color-bg-secondary);border:1px solid var(--color-border);border-radius:var(--radius-sm);transition:all var(--transition-fast)}.reference-links a:hover{background-color:var(--color-accent-primary);border-color:var(--color-accent-primary);color:#fff}.selection-history{padding:var(--spacing-md) var(--spacing-lg);border-top:1px solid var(--color-border-subtle);background-color:var(--color-bg-secondary)}.selection-history h4{font-size:.75rem;font-weight:600;text-transform:uppercase;letter-spacing:.05em;color:var(--color-text-tertiary);margin-bottom:var(--spacing-sm)}.history-items{display:flex;flex-wrap:wrap;gap:var(--spacing-xs)}.history-empty{font-size:.8125rem;color:var(--color-text-muted);font-style:italic}.history-item{font-size:.75rem;padding:2px 8px;background-color:var(--color-bg-panel);border:1px solid var(--color-border);border-radius:var(--radius-sm);color:var(--color-text-secondary);cursor:pointer;transition:all var(--transition-fast)}.history-item:hover{background-color:var(--color-accent-primary);border-color:var(--color-accent-primary);color:#fff}.anatomy-tooltip{position:fixed;z-index:1000;padding:var(--spacing-sm) var(--spacing-md);background-color:var(--color-text-primary);color:var(--color-bg-primary);font-size:.8125rem;border-radius:var(--radius-md);pointer-events:none;opacity:0;transform:translateY(4px);transition:opacity var(--transition-fast),transform var(--transition-fast);max-width:250px;box-shadow:0 4px 12px var(--color-shadow-strong)}.anatomy-tooltip.visible{opacity:1;transform:translateY(0)}.anatomy-tooltip .tooltip-title{font-family:var(--font-serif);font-weight:500;margin-bottom:2px}.anatomy-tooltip .tooltip-id{font-family:var(--font-mono);font-size:.6875rem;opacity:.7}.loading-indicator{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:var(--spacing-2xl);color:var(--color-text-tertiary)}.loading-spinner{width:32px;height:32px;border:2px solid var(--color-border);border-top-color:var(--color-accent-primary);border-radius:50%;animation:spin .8s linear infinite;margin-bottom:var(--spacing-md)}@keyframes spin{to{transform:rotate(360deg)}}@media(max-width:768px){.header,.main{padding:var(--spacing-md)}.title{font-size:1.5rem}.diagram-container{min-height:400px;padding:var(--spacing-md)}.info-panel{margin-top:var(--spacing-md)}.tabs{overflow-x:auto;-webkit-overflow-scrolling:touch}.tab{white-space:nowrap}}