:root{--bg-primary:#0f0f1a;--bg-secondary:#18182a;--bg-tertiary:#222240;--bg-card:#1a1a30;--bg-hover:#252545;--bg-code:#151525;--text-primary:#e8e8f0;--text-secondary:#a0a0b8;--text-muted:#6b6b8a;--text-accent:#6ec8ff;--border-color:#2a2a4a;--border-hover:#3d3d6c;--accent-blue:#6ec8ff;--accent-purple:#b679ff;--accent-green:#5effa1;--accent-yellow:#ffe66d;--accent-red:#ff6b6b;--accent-orange:#ffb347;--accent-cyan:#00e5ff;--bar-default:#6366f1;--bar-comparing:#ffe66d;--bar-swapping:#ff6b6b;--bar-sorted:#5effa1;--bar-pivot:#b679ff;--bar-selected:#00e5ff;--sidebar-width:260px;--sidebar-collapsed:64px;--header-height:60px;--mobile-nav-height:64px;--panel-gap:12px;--radius-sm:6px;--radius-md:10px;--radius-lg:16px;--radius-xl:24px;--shadow-sm:0 2px 8px #0000004d;--shadow-md:0 4px 16px #0006;--shadow-lg:0 8px 32px #00000080;--font-mono:"SF Mono", "Fira Code", "Consolas", monospace;--font-sans:-apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}body{font-family:var(--font-sans);background:var(--bg-primary);color:var(--text-primary);-webkit-font-smoothing:antialiased;min-height:100vh;line-height:1.6;overflow-x:hidden}#root{min-height:100vh}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:var(--bg-secondary)}::-webkit-scrollbar-thumb{background:var(--bg-tertiary);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:var(--border-hover)}h1,h2,h3,h4,h5,h6{color:var(--text-primary);font-weight:600;line-height:1.3}a{color:var(--text-accent);text-decoration:none}a:hover{text-decoration:underline}code,pre{font-family:var(--font-mono);font-size:.9em}.btn{border-radius:var(--radius-md);cursor:pointer;background:var(--bg-tertiary);color:var(--text-primary);white-space:nowrap;border:none;justify-content:center;align-items:center;gap:8px;padding:10px 20px;font-size:.95rem;font-weight:500;transition:all .2s;display:inline-flex}.btn:hover{background:var(--bg-hover);transform:translateY(-1px)}.btn:active{transform:translateY(0)}.btn:disabled{opacity:.4;cursor:not-allowed;transform:none}.btn-primary{background:var(--accent-blue);color:#0a0a1a}.btn-primary:hover{background:#8ad4ff}.btn-accent{background:var(--accent-purple);color:#fff}.btn-accent:hover{background:#c890ff}.btn-success{background:var(--accent-green);color:#0a0f1a}.btn-danger{background:var(--accent-red);color:#fff}.btn-sm{padding:6px 14px;font-size:.85rem}.btn-icon{border-radius:var(--radius-sm);min-width:36px;min-height:36px;padding:8px}input,select,textarea{background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:var(--radius-sm);color:var(--text-primary);font-size:.95rem;font-family:var(--font-sans);width:100%;padding:10px 14px;transition:border-color .2s,box-shadow .2s}input:focus,select:focus,textarea:focus{border-color:var(--accent-blue);outline:none;box-shadow:0 0 0 3px #6ec8ff26}input::placeholder{color:var(--text-muted)}input[type=range]{appearance:none;background:var(--bg-tertiary);cursor:pointer;border:none;border-radius:3px;height:6px;padding:0}input[type=range]::-webkit-slider-thumb{appearance:none;background:var(--accent-blue);cursor:pointer;border-radius:50%;width:18px;height:18px;transition:transform .15s}input[type=range]::-webkit-slider-thumb:hover{transform:scale(1.15)}input[type=range]::-moz-range-thumb{background:var(--accent-blue);cursor:pointer;border:none;border-radius:50%;width:18px;height:18px}.card{background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-lg);padding:20px;transition:border-color .2s,box-shadow .2s}.card:hover{border-color:var(--border-hover);box-shadow:var(--shadow-md)}.panel{background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:var(--radius-lg);padding:16px}.panel-header{border-bottom:1px solid var(--border-color);justify-content:space-between;align-items:center;margin-bottom:16px;padding-bottom:12px;display:flex}.panel-title{color:var(--text-accent);align-items:center;gap:8px;font-size:1rem;font-weight:600;display:flex}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@keyframes slideInLeft{0%{opacity:0;transform:translate(-20px)}to{opacity:1;transform:translate(0)}}@keyframes pulse{0%,to{opacity:1}50%{opacity:.6}}@keyframes glow{0%,to{box-shadow:0 0 5px #6ec8ff4d}50%{box-shadow:0 0 20px #6ec8ff99}}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-6px)}}.animate-fade-in{animation:.4s forwards fadeIn}.animate-slide-in{animation:.4s forwards slideInLeft}.animate-pulse{animation:2s ease-in-out infinite pulse}.animate-float{animation:3s ease-in-out infinite float}.flex{display:flex}.flex-col{flex-direction:column}.items-center{align-items:center}.justify-center{justify-content:center}.justify-between{justify-content:space-between}.gap-2{gap:8px}.gap-3{gap:12px}.gap-4{gap:16px}.w-full{width:100%}.h-full{height:100%}.text-center{text-align:center}.text-sm{font-size:.85rem}.text-xs{font-size:.75rem}.text-muted{color:var(--text-muted)}.text-secondary{color:var(--text-secondary)}.text-accent{color:var(--text-accent)}.hide-mobile{display:flex}.hide-desktop{display:none}@media (width<=768px){.hide-mobile{display:none!important}.hide-desktop{display:flex!important}}.canvas-container{border-radius:var(--radius-md);background:var(--bg-code);border:1px solid var(--border-color);width:100%;height:100%;position:relative;overflow:hidden}.canvas-container canvas{cursor:grab;width:100%;height:100%;display:block}.canvas-container canvas:active{cursor:grabbing}.tooltip{background:var(--bg-tertiary);border:1px solid var(--border-hover);border-radius:var(--radius-sm);pointer-events:none;z-index:1000;white-space:nowrap;box-shadow:var(--shadow-sm);padding:8px 12px;font-size:.85rem;position:absolute}::selection{color:var(--text-primary);background:#6ec8ff40}:focus-visible{outline:2px solid var(--accent-blue);outline-offset:2px}.disabled{opacity:.4;pointer-events:none}.spinner{border:2px solid var(--bg-tertiary);border-top-color:var(--accent-blue);border-radius:50%;width:24px;height:24px;animation:.8s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}