:root{--bg-color:#0f1014;--surface-color:#1a1b23;--surface-hover:#232530;--accent-color:#facc15;--accent-hover:#eab308;--text-primary:#f8fafc;--text-secondary:#94a3b8;--border-color:#2e303b;--success-color:#4ade80;--error-color:#f87171;--font-family:"Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, "Open Sans", "Helvetica Neue", sans-serif;--font-dot:"Doto", monospace}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-family);background-color:var(--bg-color);color:var(--text-primary);flex-direction:column;min-height:100vh;display:flex;overflow-x:hidden}#root{flex-direction:column;flex:1;display:flex}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:var(--bg-color)}::-webkit-scrollbar-thumb{background:var(--surface-hover);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:var(--border-color)}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@keyframes scaleIn{0%{opacity:0;transform:scale(.9)}to{opacity:1;transform:scale(1)}}@keyframes pulseBorder{0%{box-shadow:0 0 #facc1566}70%{box-shadow:0 0 0 10px #facc1500}to{box-shadow:0 0 #facc1500}}.glass-panel{-webkit-backdrop-filter:blur(12px);background:#1a1b23b3;border:1px solid #ffffff0d;border-radius:16px;box-shadow:0 8px 32px #0000004d}.text-gradient{background:linear-gradient(135deg,#facc15 0%,#fef08a 100%);-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text}.app-container{flex-direction:column;width:100%;max-width:1200px;min-height:100vh;margin:0 auto;padding:2rem;display:flex}.header{justify-content:space-between;align-items:center;margin-bottom:2rem;padding:1.5rem 2rem;animation:.5s ease-out fadeIn;display:flex}.title-section h1{font-family:var(--font-dot);letter-spacing:-.05em;margin-bottom:.5rem;font-size:2rem;font-weight:800}.title-section p{color:var(--text-secondary);font-size:.95rem}.controls{align-items:center;gap:1rem;display:flex}.btn{cursor:pointer;border:none;border-radius:8px;align-items:center;gap:.5rem;padding:.75rem 1.25rem;font-family:inherit;font-size:.9rem;font-weight:600;transition:all .2s;display:inline-flex}.btn-primary{background-color:var(--accent-color);color:#000;box-shadow:0 4px 12px #facc1533}.btn-primary:hover{background-color:var(--accent-hover);transform:translateY(-2px);box-shadow:0 6px 16px #facc154d}.btn-secondary{background-color:var(--surface-color);color:var(--text-primary);border:1px solid var(--border-color)}.btn-secondary:hover{background-color:var(--surface-hover);border-color:var(--accent-color)}.type-selector{background-color:var(--surface-color);border:1px solid var(--border-color);border-radius:8px;padding:.25rem;display:flex}.type-btn{color:var(--text-secondary);cursor:pointer;background:0 0;border:none;border-radius:6px;padding:.5rem 1rem;font-weight:600;transition:all .2s}.type-btn.active{background-color:var(--surface-hover);color:var(--accent-color);box-shadow:0 2px 8px #0003}.main-content{flex:1;grid-template-columns:300px 1fr;gap:2rem;animation:.6s ease-out fadeIn;display:grid}.pool-section{flex-direction:column;padding:1.5rem;display:flex}.pool-section h2,.tree-header h2{font-family:var(--font-dot);color:var(--text-primary);align-items:center;gap:.5rem;margin-bottom:1.5rem;font-size:1.2rem;display:flex}.numbers-grid{grid-template-columns:repeat(2,1fr);align-content:start;gap:1rem;min-height:400px;display:grid}.tree-section{flex-direction:column;min-height:600px;padding:1.5rem;display:flex;position:relative}.tree-header{z-index:10;justify-content:space-between;align-items:center;margin-bottom:1rem;display:flex}.tree-container{border:1px dashed var(--border-color);background:#0003;border-radius:12px;flex:1;position:relative;overflow:hidden}.svg-layer{pointer-events:none;z-index:1;width:100%;height:100%;position:absolute;top:0;left:0}.tree-edge{stroke:var(--border-color);stroke-width:3px;transition:stroke .3s}.tree-edge.valid{stroke:var(--success-color);opacity:.5}.tree-edge.invalid{stroke:var(--error-color);opacity:.5}.node{z-index:2;width:64px;height:64px;transition:all .3s;position:absolute;transform:translate(-50%,-50%)}.node-slot{background:var(--surface-color);border:2px dashed var(--border-color);border-radius:50%;justify-content:center;align-items:center;width:100%;height:100%;transition:all .2s;display:flex}.node-slot.drag-over{background:var(--surface-hover);border-color:var(--accent-color);transform:scale(1.05)}.block{border:2px solid var(--border-color);width:100%;height:100%;font-family:var(--font-dot);color:var(--accent-color);cursor:grab;background:linear-gradient(145deg,#2a2c38,#1d1e26);border-radius:50%;justify-content:center;align-items:center;font-size:1.5rem;font-weight:700;transition:transform .2s,box-shadow .2s,border-color .2s;display:flex;box-shadow:0 4px 12px #0000004d}.block:active{cursor:grabbing;transform:scale(.95)}.block:hover{border-color:var(--accent-color);box-shadow:0 6px 16px #facc1533}.block.dragging{opacity:.5}.pool-slot{aspect-ratio:1;border:2px dashed var(--border-color);background:#0003;border-radius:12px;justify-content:center;align-items:center;width:100%;display:flex}.pool-slot .block{border-radius:12px;width:90%;height:90%}.pool-slot.drag-over{border-color:var(--accent-color);background:#facc150d}.status-message{border-radius:8px;align-items:center;gap:.75rem;padding:1rem 1.5rem;font-weight:600;animation:.3s cubic-bezier(.175,.885,.32,1.275) scaleIn;display:flex}.status-success{color:var(--success-color);background:#4ade801a;border:1px solid #4ade8033}.status-error{color:var(--error-color);background:#f871711a;border:1px solid #f8717133}.block-correct{border-color:var(--success-color);box-shadow:0 0 16px #4ade8066}.block-incorrect{border-color:var(--error-color);box-shadow:0 0 16px #f8717166}@media (width<=900px){.main-content{grid-template-columns:1fr}.numbers-grid{grid-template-columns:repeat(4,1fr);min-height:auto}.pool-slot .block{border-radius:50%;width:64px;height:64px}.tree-section{min-height:500px}}