:root{--text:#6b6375;--text-h:#08060d;--bg:#fff;--border:#e5e4e7;--code-bg:#f4f3ec;--accent:#aa3bff;--accent-bg:#aa3bff1a;--accent-border:#aa3bff80;--social-bg:#f4f3ec80;--shadow:#0000001a 0 10px 15px -3px, #0000000d 0 4px 6px -2px;--sans:system-ui, "Segoe UI", Roboto, sans-serif;--heading:system-ui, "Segoe UI", Roboto, sans-serif;--mono:ui-monospace, Consolas, monospace;font:18px/145% var(--sans);letter-spacing:.18px;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light dark;color:var(--text);background:var(--bg);font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}@media (prefers-color-scheme:dark){:root{--lightningcss-light: ;--lightningcss-dark:initial}}@media (width<=1024px){:root{font-size:16px}}@media (prefers-color-scheme:dark){:root{--text:#9ca3af;--text-h:#f3f4f6;--bg:#16171d;--border:#2e303a;--code-bg:#1f2028;--accent:#c084fc;--accent-bg:#c084fc26;--accent-border:#c084fc80;--social-bg:#2f303a80;--shadow:#0006 0 10px 15px -3px, #00000040 0 4px 6px -2px}#social .button-icon{filter:invert()brightness(2)}}body{margin:0}#root{box-sizing:border-box;flex-direction:column;width:100vw;height:100vh;margin:0;padding:0;display:flex}h1,h2{font-family:var(--heading);color:var(--text-h);font-weight:500}h1{letter-spacing:-1.68px;margin:32px 0;font-size:56px}@media (width<=1024px){h1{margin:20px 0;font-size:36px}}h2{letter-spacing:-.24px;margin:0 0 8px;font-size:24px;line-height:118%}@media (width<=1024px){h2{font-size:20px}}p{margin:0}code,.counter{font-family:var(--mono);color:var(--text-h);border-radius:4px;display:inline-flex}code{background:var(--code-bg);padding:4px 8px;font-size:15px;line-height:135%}:root{--bg-dark:#0a0a0a;--bg-panel:#151a1a;--text-main:#f5f5f5;--text-muted:#a3a3a3;--accent:#14b8a6;--accent-hover:#0d9488;--border:#343a3a;--btn-bg:#202525}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--bg-dark);color:var(--text-main);height:100vh;font-family:Outfit,Inter,system-ui,-apple-system,sans-serif;overflow:hidden}.app-container{flex-direction:column;height:100vh;display:flex}.toolbar{background:var(--bg-panel);-webkit-backdrop-filter:blur(16px);border-bottom:1px solid var(--border);z-index:10;justify-content:space-between;align-items:center;height:64px;padding:0 24px;display:flex}.toolbar-title{letter-spacing:-.025em;background:linear-gradient(90deg, #f8fafc, var(--accent));-webkit-text-fill-color:transparent;-webkit-background-clip:text;font-size:1.25rem;font-weight:600}.toolbar-tools{gap:12px;display:flex}.tool-btn{background:var(--btn-bg);border:1px solid var(--border);color:var(--text-main);cursor:pointer;border-radius:8px;align-items:center;gap:8px;padding:8px 16px;font-size:.9rem;transition:all .2s cubic-bezier(.4,0,.2,1);display:flex}.tool-btn:hover:not(:disabled){background:#06b6d41a;border-color:#06b6d44d;transform:translateY(-1px)scale(1.02)}.tool-btn.active{border-color:var(--accent);color:var(--accent);background:#14b8a626}.tool-btn:disabled{opacity:.4;cursor:not-allowed;transform:none}.main-layout{flex:1;display:flex;overflow:hidden}.sidebar{background:var(--bg-panel);-webkit-backdrop-filter:blur(16px);border-right:1px solid var(--border);scrollbar-width:none;-ms-overflow-style:none;z-index:5;flex-direction:column;width:360px;display:flex;overflow-y:auto}.sidebar::-webkit-scrollbar{display:none}.sidebar-header{color:var(--text-muted);text-transform:uppercase;letter-spacing:.05em;border-bottom:1px solid var(--border);padding:20px 24px;font-size:.85rem;font-weight:700}.vertebra-list{flex-direction:column;gap:4px;padding:8px;display:flex}.vertebra-item{cursor:pointer;background:#ffffff0d;border:1px solid #ffffff0d;border-radius:8px;justify-content:space-between;align-items:center;padding:6px 8px;font-size:.85rem;transition:all .2s cubic-bezier(.4,0,.2,1);display:flex}.vertebra-item:hover:not(.disabled){background:#ffffff1a;border-color:#ffffff26;transform:translateY(-1px)}.vertebra-item.selected{color:#fff;background:#14b8a626;border-color:#14b8a666;box-shadow:0 0 12px #14b8a633}.vertebra-item.disabled{opacity:.3;cursor:not-allowed;pointer-events:none}.vertebra-item.has-data{color:var(--accent)}.delete-icon{transition:color .2s}.delete-icon:hover{color:#ef4444!important}.vertebra-item .save-icon{animation:.3s cubic-bezier(.175,.885,.32,1.275) popIn}@keyframes popIn{0%{opacity:0;transform:scale(0)}to{opacity:1;transform:scale(1)}}.canvas-area{background:var(--bg-dark);flex:1;justify-content:center;align-items:center;display:flex;position:relative;overflow:hidden}#cornerstone-element{width:100%;height:100%}.upload-overlay{text-align:center;cursor:pointer;background:#ffffff05;border:2px dashed #ffffff1a;border-radius:20px;flex-direction:column;justify-content:center;align-items:center;gap:20px;padding:64px;transition:all .3s;animation:2s infinite pulse-border;display:flex}@keyframes pulse-border{0%{border-color:#ffffff1a}50%{border-color:#06b6d466}to{border-color:#ffffff1a}}.upload-overlay:hover{border-color:var(--accent);background:#06b6d40d;animation:none}.upload-overlay input{display:none}.modal-overlay{-webkit-backdrop-filter:blur(8px);z-index:50;background:#0009;justify-content:center;align-items:center;animation:.2s fadeIn;display:flex;position:absolute;inset:0}.modal-content{background:var(--bg-panel);border:1px solid var(--border);text-align:center;border-radius:16px;width:360px;padding:32px;animation:.3s cubic-bezier(.175,.885,.32,1.275) slideUp;box-shadow:0 25px 50px -12px #00000080}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.modal-content h3{margin-bottom:12px;font-size:1.25rem;font-weight:600}.modal-actions{justify-content:center;gap:12px;margin-top:28px;display:flex}.btn-primary{background:var(--accent);color:var(--bg-dark);cursor:pointer;border:none;border-radius:8px;padding:10px 20px;font-weight:600;transition:all .2s}.btn-primary:hover{background:var(--accent-hover);transform:translateY(-1px)}.btn-secondary{color:var(--text-main);border:1px solid var(--border);cursor:pointer;background:0 0;border-radius:8px;padding:10px 20px;font-weight:500;transition:all .2s}.btn-secondary:hover{background:#ffffff0d}.clinical-slider{-webkit-appearance:none;background:var(--btn-bg);border-radius:4px;outline:none;width:100%;height:4px}.clinical-slider::-webkit-slider-thumb{appearance:none;background:var(--accent);cursor:pointer;border-radius:50%;width:14px;height:14px;transition:transform .1s}.clinical-slider::-webkit-slider-thumb:hover{background:var(--accent-hover);transform:scale(1.2)}