*{margin:0;padding:0;box-sizing:border-box}body{overflow:hidden;background:#111;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;color:#e0e0e0}canvas{display:block;width:100vw;height:100vh}#panel{position:fixed;top:0;left:0;width:240px;height:100vh;background:#14141eeb;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);padding:16px;display:flex;flex-direction:column;gap:12px;z-index:10;overflow-y:auto}.brand-wrapper{display:flex;align-items:baseline;margin-bottom:4px}#panel h2.brand{font-size:24px;font-weight:700;color:#fff;line-height:1.2}#panel .brand-help{font-family:Caveat,cursive;font-size:28px;font-weight:700;color:#e03020;text-shadow:1px 1px 0 rgba(0,0,0,.3),2px 2px 4px rgba(0,0,0,.4);transform:rotate(-5deg);display:inline-block;letter-spacing:1px;line-height:1;margin-left:4px}#panel label{display:flex;flex-direction:column;gap:4px;font-size:12px;color:#aaa;text-transform:uppercase;letter-spacing:.5px}#panel select,#panel input[type=range]{width:100%;margin-top:2px}#panel select{background:#222;color:#fff;border:1px solid #444;border-radius:4px;padding:6px 8px;font-size:13px}#panel input[type=range]{accent-color:#4a9eff}#panel span{font-size:14px;color:#fff;font-weight:600}.coaching-toggle{margin-top:2px}.coaching-toggle label{flex-direction:row;align-items:center;gap:8px;text-transform:none;font-size:14px;font-weight:600;color:#4adf7c;cursor:pointer}.neighbors{display:flex;flex-direction:column;gap:6px}.neighbors label{flex-direction:row;align-items:center;gap:8px;text-transform:none;font-size:13px;color:#ccc;cursor:pointer}#btn-reset{background:#333;color:#fff;border:1px solid #555;border-radius:4px;padding:8px;font-size:13px;cursor:pointer;transition:background .15s}#btn-reset:hover{background:#444}#btn-defaults{background:transparent;color:#777;border:1px solid #444;border-radius:4px;padding:6px 8px;font-size:11px;cursor:pointer;transition:background .15s,color .15s}#btn-defaults:hover{background:#333;color:#aaa}.instructions{margin-top:auto;font-size:11px;color:#777}.instructions strong{color:#aaa;display:block;margin-bottom:4px}.instructions ul{list-style:none;display:flex;flex-direction:column;gap:2px}#hud{position:fixed;bottom:16px;left:50%;transform:translate(-50%);display:flex;align-items:center;gap:20px;background:#14141ee0;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);padding:10px 24px;border-radius:12px;z-index:10;font-size:15px;font-weight:600}#hud-gear{font-size:20px;width:28px;text-align:center}#hud-steer{width:100px;height:8px;background:#333;border-radius:4px;position:relative}#steer-indicator{position:absolute;top:-4px;left:50%;width:6px;height:16px;background:#4a9eff;border-radius:3px;transform:translate(-50%);transition:left .05s}#status-banner{position:fixed;top:20px;left:50%;transform:translate(-50%);padding:12px 32px;border-radius:8px;font-size:18px;font-weight:700;z-index:20;text-align:center;pointer-events:none;transition:opacity .3s}#status-banner.hidden{opacity:0}#status-banner.collision{background:#c82828e6;color:#fff}#status-banner.jackknife{background:#c88c14e6;color:#fff}#status-banner.success{background:#1ea03ce6;color:#fff}#coaching-banner{position:fixed;top:16px;left:50%;transform:translate(-50%);padding:10px 28px;border-radius:10px;background:#14141ee0;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);z-index:15;text-align:center;pointer-events:none;transition:opacity .3s,background .5s;max-width:500px}#coaching-banner.hidden{opacity:0}#coaching-banner .phase-label{font-size:18px;font-weight:700;margin-bottom:2px}#coaching-banner .phase-detail{font-size:13px;color:#bbb}#panel-toggle{display:none;position:fixed;top:10px;left:10px;z-index:20;width:40px;height:40px;border:1px solid #555;border-radius:8px;background:#14141eeb;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);color:#ccc;font-size:22px;cursor:pointer;line-height:1}#touch-controls{display:none;position:fixed;bottom:12px;left:0;right:0;z-index:15;padding:0 12px;justify-content:space-between;align-items:flex-end;pointer-events:none}#touch-controls .touch-left,#touch-controls .touch-right,#touch-controls .touch-center{display:flex;flex-direction:column;gap:8px;pointer-events:auto}#touch-controls .touch-left,#touch-controls .touch-right{flex-direction:column}#touch-controls .touch-center{flex-direction:row;gap:10px;align-self:flex-end}.touch-btn{width:60px;height:60px;border:1px solid rgba(255,255,255,.2);border-radius:12px;background:#14141ecc;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);color:#ddd;font-size:22px;font-weight:700;cursor:pointer;user-select:none;-webkit-user-select:none;touch-action:manipulation;display:flex;align-items:center;justify-content:center}.touch-btn:active{background:#4a9eff66;border-color:#4a9eff}.touch-btn.touch-brake{font-size:13px;background:#c8282880;border-color:#ff505066}.touch-btn.touch-brake:active{background:#c82828cc}.touch-btn.touch-reset{font-size:12px;background:#3c3c3cb3}@media(max-width:768px){#panel-toggle{display:block}#panel{transform:translate(-100%);transition:transform .25s ease;width:240px;z-index:25}#panel.open{transform:translate(0)}.instructions{display:none}#touch-controls{display:flex}#hud{bottom:auto;top:10px;right:10px;left:auto;transform:none;gap:10px;padding:6px 12px;font-size:12px}#hud-gear{font-size:16px;width:22px}#hud-steer{width:60px;height:6px}#steer-indicator{height:12px;width:5px;top:-3px}#status-banner{top:50px;font-size:14px;padding:8px 16px;max-width:90vw}#coaching-banner{top:50px;max-width:70vw;padding:6px 14px}#coaching-banner .phase-label{font-size:14px}#coaching-banner .phase-detail{font-size:11px}}