:root{--accent: #00ff88;--bg: #000000;--panel: rgba(12, 12, 12, .95);--border: rgba(255, 255, 255, .15);--hud-bg: rgba(0, 20, 10, .9)}.scroll-area::-webkit-scrollbar{width:6px}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:#0000001a;border-radius:4px}::-webkit-scrollbar-thumb{background:#fff3;border-radius:4px;border:2px solid transparent;background-clip:content-box;transition:background-color .2s}::-webkit-scrollbar-thumb:hover{background-color:var(--accent);box-shadow:0 0 10px var(--accent);border:0}::-webkit-scrollbar-corner{background:transparent}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}html,body{width:100%;height:100%;margin:0;padding:0;overflow:hidden;background-color:var(--bg);font-family:Segoe UI,Roboto,Helvetica,sans-serif;color:#fff;touch-action:none}canvas{display:block;width:100%;height:100%;outline:none}#sidebar{position:absolute;top:0;left:0;bottom:0;width:340px;background:#0c0c0c99;border-right:1px solid var(--border);display:flex;flex-direction:column;z-index:300;transition:transform .3s cubic-bezier(.2,0,0,1);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px)}#sidebar.collapsed{transform:translate(-100%)}.header{padding:0 15px;border-bottom:1px solid var(--border);display:flex;justify-content:space-between;align-items:center;background:#ffffff08;position:relative;min-height:80px}.header-brand{display:flex;flex-direction:column;justify-content:center}.header h1{margin:0;font-size:13px;letter-spacing:1px;color:var(--accent);text-transform:uppercase;font-weight:800;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.header-controls{display:flex;align-items:center;gap:8px;flex-shrink:0}.app-version{font-size:9px;color:#fff6;letter-spacing:.5px;margin-top:2px;font-weight:500}.guide-btn-mini{width:auto!important;padding:6px 10px!important;font-size:9px!important;border-color:#444!important;white-space:nowrap}.scroll-area{flex:1;overflow-y:auto;padding:20px 20px 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svg{width:20px;height:20px;fill:currentColor;transition:transform .1s}.dp-btn:hover{background:#2a2a2a;color:#fff;border-color:#555}.dp-btn:active svg{transform:scale(.9)}.dp-btn.active{background:#00ff881a;color:#0f8;border-color:#0f8}.dp-btn.active.sym{background:#00aaff1a;color:#0af;border-color:#0af}.dp-btn.active.pulsar{background:#ff00551a;color:#f05;border-color:#f05}.dp-btn.danger{color:#f44}.dp-btn.danger:hover{background:#ff44441a;border-color:#f44}.dp-canvas-container{flex:1 1 auto;position:relative;display:flex;justify-content:center;align-items:center;background:#0a0a0a;overflow:hidden;padding:10px}.dp-canvas-wrapper{position:relative;width:100%;height:100%;max-width:800px;max-height:800px;border:1px solid #333;box-shadow:0 10px 40px #000c;background-color:#000}.dp-grid{position:absolute;top:0;left:0;width:100%;height:100%;background-image:linear-gradient(#222 1px,transparent 1px),linear-gradient(90deg,#222 1px,transparent 1px);background-size:20px 20px;opacity:.5;pointer-events:none}#symmetry-guide{display:none;position:absolute;top:0;left:50%;width:1px;height:100%;background:#0af;box-shadow:0 0 15px #0af;pointer-events:none;z-index:10}#draw-canvas{position:absolute;top:0;left:0;width:100%;height:100%;cursor:crosshair;background:transparent;z-index:5}#draw-footer{flex:0 0 auto;background:#111;padding:15px;border-top:1px solid #222;display:flex;flex-wrap:wrap;gap:15px;justify-content:center;align-items:center}.dp-control-group{background:#1a1a1a;padding:8px 15px;border-radius:6px;border:1px solid #2a2a2a;display:flex;gap:10px;align-items:center}.dp-control-group span.label{font-size:10px;color:#888;width:45px;text-transform:uppercase;font-weight:600;letter-spacing:.5px}.dp-control-group span.val{font-size:10px;width:30px;color:var(--accent);text-align:right;font-family:monospace}.dp-control-group input[type=range]{width:80px;accent-color:var(--accent)}.dp-build-btn{background:var(--accent);color:#000;font-weight:800;padding:10px 25px;border:none;border-radius:6px;text-transform:uppercase;letter-spacing:1px;display:flex;align-items:center;gap:8px;cursor:pointer;transition:all .2s ease}.dp-build-btn:hover{transform:translateY(-2px);box-shadow:0 5px 15px #0f86}.dp-build-btn:active{transform:translateY(0)}.platform-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-bottom:5px}.platform-btn{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:15px 10px;background:#ffffff0d;border:1px solid #333;border-radius:8px;cursor:pointer;transition:all .2s;height:80px;gap:8px}.platform-btn:hover{background:#ffffff1a;border-color:#666}.platform-btn.active{background:#00ff881a;border-color:var(--accent);color:var(--accent)}.platform-btn svg{width:28px;height:28px;margin-bottom:2px;overflow:visible}.platform-btn span{font-size:10px;font-weight:700;text-transform:uppercase}.aspect-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:8px;margin-bottom:5px}.aspect-btn{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:10px 5px;background:#ffffff0d;border:1px solid #333;border-radius:8px;cursor:pointer;transition:all .2s;height:70px;gap:8px}.aspect-btn:hover{background:#ffffff1a;border-color:#666}.aspect-btn.active{background:#00ff881a;border-color:var(--accent);color:var(--accent)}.aspect-icon{border:2px solid currentColor;border-radius:2px;transition:all .2s}.aspect-btn span{font-size:9px;font-weight:700;text-transform:uppercase}@media (max-width: 600px){#export-modal .platform-grid{grid-template-columns:repeat(2,1fr);gap:10px}#export-modal .platform-btn{height:70px;padding:10px}#export-modal .aspect-grid{grid-template-columns:repeat(3,1fr);gap:10px}#export-modal .aspect-btn{height:60px}}.custom-res-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}@media (max-width: 600px){#export-modal .custom-res-grid{grid-template-columns:1fr}}