:root{--primary:#2196f3;--bg:#fff;--card-bg:#f9f9f9;--border:#ccc;--text:#333;--text-light:#666;--sans:system-ui, "Segoe UI", Roboto, sans-serif;--mono:ui-monospace, Consolas, monospace}*{box-sizing:border-box}body{font:16px/1.5 var(--sans);color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased;margin:0}h1{margin:0;font-size:20px;font-weight:700}button{cursor:pointer;font-family:inherit}input{font-family:inherit}.navbar{border-bottom:1px solid var(--border);background:var(--bg);z-index:10;align-items:center;gap:12px;padding:12px 20px;display:flex;position:sticky;top:0}.nav-back{color:var(--primary);cursor:pointer;background:0 0;border:none;padding:0;font-size:15px}.nav-title{color:var(--text);flex:1;font-size:17px;font-weight:700}.lang-selector{background:var(--bg);color:var(--text);border:1px solid var(--border);cursor:pointer;border-radius:4px;padding:3px 6px;font-family:inherit;font-size:13px}.page{max-width:900px;margin:0 auto;padding:20px}.pit-page{max-width:1200px}.page-header{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:8px;margin-bottom:16px;display:flex}.pit-header-controls{align-items:center;gap:12px;display:flex}.pit-stat-inline{color:var(--text-light);font-size:14px}.btn{border:1px solid var(--border);background:var(--bg);color:var(--text);border-radius:5px;padding:10px 20px;font-size:15px}.btn:hover{background:#f5f5f5}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:var(--primary);color:#fff;border-color:var(--primary)}.btn-primary:hover{background:#1e88e5}.btn-primary:disabled{background:#90caf9;border-color:#90caf9}.btn-sm{padding:6px 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var(--border);border-radius:8px;height:400px;margin-top:16px;overflow:hidden}.iframe-container iframe{border:none;width:100%;height:100%}.kart-shape{cursor:grab;-webkit-user-select:none;user-select:none;flex-shrink:0;transition:transform .15s,box-shadow .15s;position:relative}.kart-shape:active{cursor:grabbing}.kart-shape:hover{transform:translateY(-2px)}.kart-svg{width:100%;height:100%;display:block}.kart-compact{width:165px;height:120px}.kart-full{width:180px;height:132px}.kart-overlay{pointer-events:none;flex-direction:row;justify-content:center;align-items:center;gap:4px;display:flex;position:absolute;inset:16% 8% 16% 10%;overflow:hidden}.kart-col-left{flex-direction:column;flex:1;justify-content:center;align-items:flex-start;gap:0;min-width:0;display:flex}.kart-col-right{font-family:var(--mono);color:#fffffff2;text-shadow:0 1px 2px 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#0000004d}.kart-full .kart-cat-label{padding:1px 4px;font-size:8px}.kart-dummy{opacity:.55;cursor:grab}.kart-dummy:hover{opacity:.75}.kart-num-dummy{color:#888;text-shadow:none;font-size:28px}.kart-full.kart-dummy .kart-num-dummy{font-size:34px}.kart-queue{border:2px dashed var(--border);background:#f0f0f0;border-radius:10px;min-height:120px;margin-bottom:20px;padding:10px;transition:border-color .2s,background .2s}.kart-queue.drag-over{border-color:var(--primary);background:#e3f2fd}.queue-label{color:var(--text-light);text-transform:uppercase;letter-spacing:.5px;margin-bottom:8px;font-size:13px;font-weight:600}.queue-track{align-items:flex-start;gap:8px;padding-bottom:4px;display:flex;overflow-x:auto}.queue-empty{color:#aaa;padding:20px 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