:root{--bg-primary: #060509;--bg-panel: rgba(13, 11, 20, .72);--bg-panel-solid: #0d0b14;--border-glow: rgba(139, 92, 246, .2);--border-subtle: rgba(255, 255, 255, .07);--color-accent: #8b5cf6;--color-accent-glow: rgba(139, 92, 246, .5);--color-secondary: #06b6d4;--color-secondary-glow: rgba(6, 182, 212, .4);--color-success: #10b981;--text-main: #f3f4f6;--text-muted: #9ca3af;--text-dim: #6b7280;--font-main: "Outfit", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--font-mono: "JetBrains Mono", monospace;--transition-smooth: all .3s cubic-bezier(.4, 0, .2, 1);--transition-fast: all .15s ease}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--bg-primary);color:var(--text-main);font-family:var(--font-main);overflow:hidden;height:100vh;width:100vw;-webkit-font-smoothing:antialiased}#webgpu-canvas{position:fixed;top:0;left:0;width:100%;height:100%;z-index:1;display:block}.app-header{position:fixed;top:24px;left:24px;z-index:10;pointer-events:none}.logo-container{display:flex;align-items:center;gap:12px;background:#0a0810a6;border:1px solid var(--border-subtle);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);padding:10px 18px;border-radius:12px;box-shadow:0 8px 32px #0000004d;pointer-events:auto}.logo-icon{color:var(--color-secondary);display:flex;align-items:center;justify-content:center;animation:pulse-cyan 3s infinite ease-in-out}.logo-text h1{font-size:1.15rem;font-weight:700;letter-spacing:.5px;background:linear-gradient(135deg,#fff 30%,var(--text-muted));-webkit-background-clip:text;-webkit-text-fill-color:transparent}.logo-text span{font-size:.68rem;font-family:var(--font-mono);color:var(--color-accent);text-transform:uppercase;letter-spacing:1px;display:block}.hud-container{position:fixed;top:24px;right:24px;bottom:24px;width:380px;z-index:10;pointer-events:none;transition:transform .4s cubic-bezier(.16,1,.3,1),opacity .3s ease}.hud-panel{width:100%;height:100%;background:var(--bg-panel);border:1px solid var(--border-subtle);box-shadow:0 24px 64px #0000008c,inset 0 1px #ffffff0d;-webkit-backdrop-filter:blur(24px);backdrop-filter:blur(24px);border-radius:20px;display:flex;flex-direction:column;overflow:hidden;pointer-events:auto;transition:border-color .4s ease,box-shadow .4s ease}.hud-panel:hover{border-color:var(--border-glow);box-shadow:0 24px 64px #0009,0 0 30px #8b5cf61a,inset 0 1px #ffffff14}.panel-header{padding:20px 24px;border-bottom:1px solid var(--border-subtle);display:flex;justify-content:space-between;align-items:center}.panel-title-group h2{font-size:1.1rem;font-weight:600;color:var(--text-main)}.panel-title-group p{font-size:.75rem;color:var(--text-muted);margin-top:2px}.panel-body{flex:1;overflow-y:auto;padding:12px 24px 24px;display:flex;flex-direction:column;gap:24px;scrollbar-width:thin;scrollbar-color:rgba(255,255,255,.1) transparent}.panel-body::-webkit-scrollbar{width:5px}.panel-body::-webkit-scrollbar-track{background:transparent}.panel-body::-webkit-scrollbar-thumb{background:#ffffff1a;border-radius:10px}.panel-body::-webkit-scrollbar-thumb:hover{background:#ffffff40}.control-section{display:flex;flex-direction:column;gap:14px}.control-section h3{font-size:.8rem;font-weight:700;text-transform:uppercase;letter-spacing:1.5px;color:var(--text-main);display:flex;align-items:center;gap:8px;border-bottom:1px solid rgba(255,255,255,.04);padding-bottom:6px}.sec-num{font-family:var(--font-mono);color:var(--color-secondary);font-size:.75rem}.control-group{display:flex;flex-direction:column;gap:6px}.control-label-row{display:flex;justify-content:space-between;align-items:center}.control-label-row label{font-size:.8rem;font-weight:400;color:var(--text-muted)}.val-badge{font-family:var(--font-mono);font-size:.72rem;font-weight:600;color:var(--color-secondary);background:#06b6d414;border:1px solid rgba(6,182,212,.15);padding:2px 6px;border-radius:4px}.help-text{font-size:.68rem;color:var(--text-dim);line-height:1.3}.custom-slider{-webkit-appearance:none;width:100%;height:6px;background:#ffffff14;border-radius:3px;outline:none;cursor:pointer;transition:background .2s ease}.custom-slider:hover{background:#ffffff1f}.custom-slider::-webkit-slider-thumb{-webkit-appearance:none;width:14px;height:14px;border-radius:50%;background:#fff;box-shadow:0 0 10px #ffffff80,0 0 0 3px #8b5cf64d;cursor:pointer;transition:transform .15s ease,box-shadow .15s ease}.custom-slider::-webkit-slider-thumb:hover{transform:scale(1.2);background:var(--color-secondary);box-shadow:0 0 12px var(--color-secondary-glow),0 0 0 4px #06b6d44d}.shape-selector{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}.shape-btn{background:#ffffff08;border:1px solid var(--border-subtle);border-radius:8px;padding:10px 8px;color:var(--text-muted);cursor:pointer;display:flex;flex-direction:column;align-items:center;gap:6px;transition:var(--transition-smooth)}.shape-btn svg{stroke-width:1.5px}.shape-btn span{font-size:.72rem;font-weight:600}.shape-btn:hover{background:#ffffff0f;border-color:#ffffff26;color:var(--text-main)}.shape-btn.active{background:#8b5cf614;border-color:var(--color-accent);color:var(--color-accent);box-shadow:0 0 12px #8b5cf626}.checkbox-row{display:flex;align-items:center;gap:10px;cursor:pointer}.custom-checkbox{-webkit-appearance:none;-moz-appearance:none;appearance:none;width:16px;height:16px;border:1px solid var(--border-subtle);border-radius:4px;background:#ffffff08;outline:none;cursor:pointer;display:flex;align-items:center;justify-content:center;position:relative;transition:var(--transition-fast)}.custom-checkbox:checked{background:var(--color-accent);border-color:var(--color-accent)}.custom-checkbox:checked:after{content:"";width:8px;height:4px;border-left:2px solid white;border-bottom:2px solid white;transform:rotate(-45deg) translate(1px,-1px);position:absolute}.checkbox-row label{font-size:.8rem;color:var(--text-main);font-weight:600;-webkit-user-select:none;user-select:none;cursor:pointer}.panel-footer{padding:16px 24px;background:#08060c66;border-top:1px solid var(--border-subtle);display:flex;flex-direction:column;gap:12px}.stats-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}.stat-box{background:#ffffff05;border:1px solid var(--border-subtle);border-radius:8px;padding:8px 12px}.stat-label{font-size:.65rem;color:var(--text-dim);text-transform:uppercase;letter-spacing:.5px;display:block}.stat-value{font-family:var(--font-mono);font-size:.9rem;font-weight:600;margin-top:2px;display:block}.text-glow{text-shadow:0 0 10px rgba(16,185,129,.3)}.gpu-badge{display:flex;align-items:center;gap:8px;background:#ffffff08;padding:6px 12px;border-radius:6px;border:1px solid var(--border-subtle)}.gpu-dot{width:6px;height:6px;border-radius:50%;background-color:var(--color-success);animation:pulse-green 1.5s infinite alternate}.gpu-text{font-size:.65rem;font-family:var(--font-mono);color:var(--text-muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.icon-btn{background:transparent;border:none;color:var(--text-muted);cursor:pointer;width:32px;height:32px;border-radius:8px;display:flex;align-items:center;justify-content:center;transition:var(--transition-fast)}.icon-btn:hover{background:#ffffff0f;color:var(--text-main)}.hud-trigger-btn{position:fixed;top:24px;right:24px;z-index:10;background:var(--bg-panel-solid);border:1px solid var(--color-accent);color:var(--text-main);padding:10px 16px;border-radius:12px;cursor:pointer;box-shadow:0 10px 30px #8b5cf633;display:flex;align-items:center;gap:8px;font-weight:600;font-size:.8rem;animation:slide-in-btn .3s cubic-bezier(.16,1,.3,1)}.hud-trigger-btn:hover{box-shadow:0 10px 30px #8b5cf64d;transform:translateY(-1px)}.fallback-overlay{position:fixed;top:0;left:0;width:100vw;height:100vh;background:#040306f2;z-index:100;display:flex;align-items:center;justify-content:center;padding:20px;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.fallback-card{max-width:520px;background:#0c0b11;border:1px solid rgba(239,68,68,.3);border-radius:24px;padding:36px;box-shadow:0 24px 64px #000c;display:flex;flex-direction:column;align-items:center;text-align:center}.fallback-icon{color:#ef4444;background:#ef444414;padding:16px;border-radius:50%;margin-bottom:20px;animation:pulse-red 2s infinite ease-in-out}.fallback-card h2{font-size:1.4rem;font-weight:700;margin-bottom:12px;color:var(--text-main)}.fallback-card p{font-size:.88rem;color:var(--text-muted);line-height:1.6;margin-bottom:24px}.fallback-instructions{width:100%;background:#ffffff05;border:1px solid var(--border-subtle);border-radius:12px;padding:18px 24px;text-align:left;margin-bottom:24px}.fallback-instructions h3{font-size:.85rem;text-transform:uppercase;color:var(--color-secondary);letter-spacing:1px;margin-bottom:10px}.fallback-instructions ul{list-style-type:none;display:flex;flex-direction:column;gap:12px}.fallback-instructions li{font-size:.8rem;line-height:1.5;color:var(--text-muted)}.fallback-instructions li strong{color:var(--text-main)}.fallback-instructions li code{font-family:var(--font-mono);font-size:.72rem;background:#ffffff0f;padding:2px 6px;border-radius:4px;color:var(--color-accent)}.fallback-footer{width:100%}.fallback-footer p{font-size:.75rem;color:var(--text-dim);margin-bottom:16px}.btn-primary{background:var(--color-accent);color:#fff;border:none;font-family:var(--font-main);font-weight:600;font-size:.85rem;padding:12px 28px;border-radius:10px;cursor:pointer;transition:var(--transition-fast);box-shadow:0 4px 14px #8b5cf64d}.btn-primary:hover{background:#7c3aed;box-shadow:0 4px 20px #8b5cf680;transform:translateY(-1px)}.hud-container.collapsed{transform:translate(420px);opacity:0}@keyframes pulse-green{0%{box-shadow:0 0 4px var(--color-success)}to{box-shadow:0 0 10px var(--color-success)}}@keyframes pulse-cyan{0%{transform:scale(1);filter:drop-shadow(0 0 0px rgba(6,182,212,0))}50%{transform:scale(1.05);filter:drop-shadow(0 0 6px rgba(6,182,212,.4))}to{transform:scale(1);filter:drop-shadow(0 0 0px rgba(6,182,212,0))}}@keyframes pulse-red{0%{transform:scale(1);box-shadow:0 0 #ef444466}70%{transform:scale(1.05);box-shadow:0 0 0 10px #ef444400}to{transform:scale(1);box-shadow:0 0 #ef444400}}@keyframes slide-in-btn{0%{transform:translate(100px);opacity:0}to{transform:translate(0);opacity:1}}.mt-3{margin-top:12px}@media (max-width: 768px){.hud-container{width:calc(100% - 32px);right:16px;left:16px;bottom:16px;top:auto;height:40vh}.hud-panel{border-radius:16px}.app-header{top:16px;left:16px;right:16px}.logo-container{width:100%;justify-content:center}.hud-container.collapsed{transform:translateY(50vh)}}