:root{--panel-bg: rgba(14, 19, 26, .86);--panel-border: rgba(120, 190, 220, .18);--text: #dbe6ef;--text-dim: #8ea3b6;--accent: #4fd1c5;--panel-width: 320px}*{box-sizing:border-box}html,body{margin:0;height:100%;overflow:hidden;background:#05080c;color:var(--text);font:13px/1.45 system-ui,-apple-system,Segoe UI,sans-serif;-webkit-font-smoothing:antialiased}#viewport{position:fixed;top:0;right:0;bottom:0;left:0;width:100%;height:100%;display:block;touch-action:none}#menu-toggle{position:fixed;top:16px;left:16px;z-index:20;width:44px;height:44px;display:flex;flex-direction:column;justify-content:center;align-items:center;gap:5px;padding:0;border:1px solid var(--panel-border);border-radius:10px;background:var(--panel-bg);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);cursor:pointer;transition:background .15s ease,border-color .15s ease}#menu-toggle:hover{border-color:#78bedc73}#menu-toggle span{display:block;width:20px;height:2px;border-radius:2px;background:var(--text);transition:transform .22s ease,opacity .18s ease}#menu-toggle.active span:nth-child(1){transform:translateY(7px) rotate(45deg)}#menu-toggle.active span:nth-child(2){opacity:0}#menu-toggle.active span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}#panel{position:fixed;top:0;left:0;z-index:15;width:var(--panel-width);height:100%;padding:76px 0 20px;overflow-y:auto;overscroll-behavior:contain;background:var(--panel-bg);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);border-right:1px solid var(--panel-border);transform:translate(-100%);transition:transform .26s cubic-bezier(.4,0,.2,1)}#panel.open{transform:translate(0)}#panel header{padding:0 18px 14px}#panel h1{margin:0;font-size:15px;font-weight:600;letter-spacing:.04em;text-transform:uppercase;color:var(--accent)}#hud-stats{margin:6px 0 0;font-size:11px;font-variant-numeric:tabular-nums;color:var(--text-dim);white-space:pre-line}.group{border-top:1px solid rgba(255,255,255,.06)}.group>summary{padding:11px 18px;font-weight:600;font-size:12px;letter-spacing:.05em;text-transform:uppercase;color:var(--text-dim);cursor:pointer;-webkit-user-select:none;user-select:none;list-style:none}.group>summary::-webkit-details-marker{display:none}.group>summary:before{content:"▸ ";color:var(--accent)}.group[open]>summary:before{content:"▾ "}.group>summary:hover{color:var(--text)}.control{padding:4px 18px 9px}.control label{display:flex;justify-content:space-between;align-items:baseline;gap:8px;font-size:12px;color:var(--text-dim);margin-bottom:3px}.readout{font-variant-numeric:tabular-nums;color:var(--text)}.control-toggle,.control-color{display:flex;align-items:center;gap:10px}.control-toggle label,.control-color label{flex:1;margin:0}input[type=range]{width:100%;height:18px;margin:0;background:transparent;-webkit-appearance:none;-moz-appearance:none;appearance:none;cursor:pointer}input[type=range]::-webkit-slider-runnable-track{height:3px;border-radius:3px;background:#ffffff26}input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:13px;height:13px;margin-top:-5px;border:none;border-radius:50%;background:var(--accent)}input[type=range]::-moz-range-track{height:3px;border-radius:3px;background:#ffffff26}input[type=range]::-moz-range-thumb{width:13px;height:13px;border:none;border-radius:50%;background:var(--accent)}input[type=checkbox]{accent-color:var(--accent);width:15px;height:15px;cursor:pointer}input[type=color]{width:38px;height:22px;padding:0;border:1px solid var(--panel-border);border-radius:4px;background:none;cursor:pointer}button.action{width:100%;padding:8px;border:1px solid var(--accent);border-radius:6px;background:#4fd1c51f;color:var(--accent);font:inherit;font-weight:600;cursor:pointer}button.action:hover{background:#4fd1c538}#vehicle-toggle{position:fixed;top:16px;right:16px;z-index:20;width:44px;height:44px;display:flex;flex-direction:column;justify-content:center;align-items:center;gap:5px;padding:0;border:1px solid var(--panel-border);border-radius:10px;background:var(--panel-bg);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);cursor:pointer;transition:background .15s ease,border-color .15s ease}#vehicle-toggle:hover{border-color:#78bedc73}#vehicle-toggle span{display:block;width:20px;height:2px;border-radius:2px;background:var(--text);transition:transform .22s ease,opacity .18s ease}#vehicle-toggle.active span:nth-child(1){transform:translateY(7px) rotate(45deg)}#vehicle-toggle.active span:nth-child(2){opacity:0}#vehicle-toggle.active span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}#vehicle-panel{position:fixed;top:0;right:0;z-index:15;width:var(--panel-width);height:100%;padding:76px 18px 20px;overflow-y:auto;overscroll-behavior:contain;background:var(--panel-bg);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);border-left:1px solid var(--panel-border);transform:translate(100%);transition:transform .26s cubic-bezier(.4,0,.2,1)}#vehicle-panel.open{transform:translate(0)}#vehicle-panel header{padding-bottom:14px}#vehicle-panel h1{margin:0;font-size:15px;font-weight:600;letter-spacing:.04em;text-transform:uppercase;color:var(--accent)}#vehicle-panel .hint{margin:6px 0 0;font-size:11px;color:var(--text-dim)}#vehicle-grid{display:grid;grid-template-columns:1fr;gap:12px}.vehicle-card{display:flex;flex-direction:column;align-items:stretch;gap:0;padding:0;border:1px solid var(--panel-border);border-radius:10px;background:#ffffff08;cursor:pointer;overflow:hidden;transition:border-color .15s ease,background .15s ease}.vehicle-card:hover{border-color:var(--accent);background:#4fd1c514}.vehicle-card canvas{display:block;width:100%;height:108px}.vehicle-card-label{padding:8px 10px 2px;font-size:12px;font-weight:600;color:var(--text);text-align:left}.vehicle-card-stats{padding:0 10px 8px;font-size:10px;font-variant-numeric:tabular-nums;color:var(--text-dim);text-align:left}.vehicle-card.locked{cursor:default;opacity:.45;filter:grayscale(.7)}.vehicle-card.locked:hover{border-color:var(--panel-border);background:#ffffff08}.vehicle-card-lock{padding:0 10px 8px;font-size:10px;color:var(--accent);text-align:left}.vehicle-section{margin-bottom:24px}.vehicle-section-title{margin:0 0 10px;font-size:11px;font-weight:600;letter-spacing:.05em;text-transform:uppercase;color:var(--text-dim)}.vehicle-card-active{opacity:.9}.vehicle-card-active:hover{border-color:var(--accent);background:#4fd1c51f}#hud{position:fixed;bottom:16px;left:16px;z-index:15;width:260px;padding:12px 14px;border:1px solid var(--panel-border);border-radius:10px;background:var(--panel-bg);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);pointer-events:none}#hud.hidden{display:none}.hud-name{font-size:12px;font-weight:600;letter-spacing:.04em;text-transform:uppercase;color:var(--accent)}.hud-health{position:relative;height:10px;margin:8px 0 4px;border:1px solid var(--panel-border);border-radius:3px;overflow:hidden;background:#00000059}.hud-health-fill{height:100%;background:repeating-linear-gradient(90deg,#46e08a 0 5px,transparent 5px 8px);transition:width .25s ease}.hud-line{font-size:10px;font-variant-numeric:tabular-nums;color:var(--text-dim)}.hud-line-done{color:var(--accent)}.hud-discovery{margin-top:8px;padding-top:8px;border-top:1px solid rgba(255,255,255,.06)}.hud-discovery.hidden,.hud-economy.hidden,.hud-selection.hidden,.hud-load.hidden{display:none}.hud-economy{margin-bottom:8px;padding-bottom:8px;border-bottom:1px solid rgba(255,255,255,.06)}.hud-credits{font-size:15px;font-weight:600;font-variant-numeric:tabular-nums;color:#f0c65a;text-shadow:0 0 10px rgba(240,198,90,.35)}.hud-load{margin-top:6px}.hud-load-track{height:8px;margin-bottom:3px;border:1px solid var(--panel-border);border-radius:3px;overflow:hidden;background:#00000059}.hud-load-fill{height:100%;background:repeating-linear-gradient(90deg,#7ce8ff 0 6px,transparent 6px 9px);transition:width .35s ease}.hud-discovery-value{font-size:13px;font-variant-numeric:tabular-nums;color:var(--text)}#radial-menu{position:fixed;top:0;left:0;z-index:25;width:0;height:0;pointer-events:none}#radial-menu.hidden{display:none}.rm-ring{position:absolute;width:196px;height:196px;margin:-98px 0 0 -98px;border-radius:50%;border:1.5px solid rgba(79,209,197,.65);background:radial-gradient(circle,#4fd1c50d 55%,#4fd1c529);box-shadow:0 0 22px #4fd1c566,inset 0 0 28px #4fd1c538;animation:rm-open .18s ease-out}@keyframes rm-open{0%{transform:scale(.6);opacity:0}to{transform:scale(1);opacity:1}}.rm-title{position:absolute;transform:translate(-50%,-50%);font-size:10px;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--accent);text-shadow:0 0 8px rgba(79,209,197,.7);white-space:nowrap}.rm-item{position:absolute;transform:translate(-50%,-50%);pointer-events:auto;display:flex;flex-direction:column;gap:1px;padding:8px 14px;border:1px solid rgba(79,209,197,.75);border-radius:999px;background:#08181cd1;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);color:var(--accent);font:inherit;font-size:12px;font-weight:600;white-space:nowrap;cursor:pointer;text-shadow:0 0 6px rgba(79,209,197,.7);box-shadow:0 0 12px #4fd1c54d;transition:background .15s ease,box-shadow .15s ease,border-color .15s ease}.rm-item:hover:not(.disabled){background:#4fd1c538;border-color:var(--accent);box-shadow:0 0 20px #4fd1c58c}.rm-item.disabled{cursor:default;opacity:.5;border-color:#8ea3b659;background:#0e131acc;color:var(--text-dim);text-shadow:none;box-shadow:none}.rm-sub{font-size:9px;font-weight:400;letter-spacing:.02em;color:var(--text-dim);text-shadow:none}#difficulty{position:fixed;top:0;right:0;bottom:0;left:0;z-index:31;display:flex;align-items:center;justify-content:center;padding:24px;background:#05080cf0;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);transition:opacity .35s ease}#difficulty.hidden{opacity:0;pointer-events:none}.difficulty-panel{width:100%;max-width:720px;text-align:center}.difficulty-panel h1{margin:0;font-size:15px;font-weight:600;letter-spacing:.04em;text-transform:uppercase;color:var(--accent)}.difficulty-panel .hint{margin:10px auto 24px;max-width:460px;font-size:12px;color:var(--text-dim)}.difficulty-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.difficulty-card{display:flex;flex-direction:column;gap:6px;padding:18px 14px;border:1px solid var(--panel-border);border-radius:10px;background:#ffffff08;color:inherit;font:inherit;text-align:left;cursor:pointer;transition:border-color .15s ease,background .15s ease}.difficulty-card:hover{border-color:var(--accent);background:#4fd1c514}.difficulty-card-name{font-size:14px;font-weight:600;color:var(--text)}.difficulty-card-target{font-size:11px;font-variant-numeric:tabular-nums;color:var(--accent)}.difficulty-card-blurb{font-size:11px;color:var(--text-dim)}@media (max-width: 620px){.difficulty-grid{grid-template-columns:1fr}}#loading{position:fixed;top:0;right:0;bottom:0;left:0;z-index:30;display:flex;align-items:center;justify-content:center;background:#05080c;color:var(--text-dim);letter-spacing:.1em;text-transform:uppercase;transition:opacity .5s ease}#loading.hidden{opacity:0;pointer-events:none}