:root{
  --bg:#070b14; --bg-2:#0f172a;
  --panel:rgba(15,23,42,.66); --panel-2:rgba(9,14,26,.82);
  --stroke:rgba(255,255,255,.09); --stroke-2:rgba(255,255,255,.16);
  --text:#f1f5f9; --muted:#94a3b8; --dim:#64748b;
  --primary:#dc2626; --primary-2:#f87171;
  --blue:#2563eb; --blue-2:#60a5fa;
  --accent:#22c55e; --accent-2:#4ade80;
  --amber:#f59e0b; --cyan:#22d3ee; --violet:#8b5cf6;
  --glow-r:0 0 24px rgba(220,38,38,.45);
  --glow-g:0 0 26px rgba(34,197,94,.40);
  --glow-b:0 0 26px rgba(37,99,235,.40);
  --r-sm:10px; --r:16px; --r-lg:24px;
  --font-ar:'Cairo',system-ui,'Segoe UI',sans-serif;
  --font-mono:'JetBrains Mono','Cairo',ui-monospace,monospace;
  --font-disp:'Orbitron','Cairo',sans-serif;
  --shadow:0 24px 60px rgba(0,0,0,.55);
  --ease:cubic-bezier(.22,.68,0,1);
}
*,*::before,*::after{box-sizing:border-box}
html,body{margin:0;padding:0;height:100%;overflow:hidden;background:var(--bg);color:var(--text);
  font-family:var(--font-ar);-webkit-font-smoothing:antialiased;-webkit-tap-highlight-color:transparent}
body{overscroll-behavior:none}
#app{position:fixed;inset:0}
canvas#gl{position:absolute;inset:0;width:100%;height:100%;display:block;touch-action:none}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums;letter-spacing:.02em}
.is-hidden{display:none !important}
.glass{background:var(--panel);backdrop-filter:blur(14px) saturate(140%);-webkit-backdrop-filter:blur(14px) saturate(140%);
  border:1px solid var(--stroke);box-shadow:var(--shadow)}
kbd{font-family:var(--font-mono);font-size:11px;background:rgba(255,255,255,.08);border:1px solid var(--stroke-2);
  border-bottom-width:2px;border-radius:6px;padding:2px 6px;margin:0 2px;color:#e2e8f0}
.hud{position:absolute;inset:0;pointer-events:none;z-index:5}
.hud button,.hud .clickable{pointer-events:auto}
/* ---------- top bar ---------- */
.hud__top{position:absolute;top:max(14px,env(safe-area-inset-top));inset-inline:14px;display:flex;gap:10px;align-items:flex-start}
.hud__stats{display:flex;gap:18px;padding:10px 16px;border-radius:var(--r)}
.stat{display:flex;flex-direction:column;gap:2px;min-width:74px}
.stat__label{font-size:10.5px;color:var(--muted);letter-spacing:.06em}
.stat__value{font-size:22px;font-weight:700;line-height:1.1}
.stat__value small{font-size:11px;color:var(--muted);margin-inline-start:3px}
.stat.accent{color:var(--accent-2);text-shadow:var(--glow-g)}
.stat--muted{opacity:.75}
/* ---------- signal ---------- */
.hud__signal{margin-inline-start:auto;padding:10px 14px;border-radius:var(--r);min-width:190px;display:flex;
  flex-direction:column;gap:8px;transition:box-shadow .3s var(--ease),transform .3s var(--ease)}
.hud__signal.alert{box-shadow:0 0 0 1px rgba(220,38,38,.5),0 0 30px rgba(220,38,38,.28);transform:translateY(1px)}
.signal{display:flex;align-items:center;gap:10px}
.signal__dot{width:16px;height:16px;border-radius:50%;background:var(--dim);transition:background .25s,box-shadow .25s}
.signal__dot.green{background:var(--accent);box-shadow:var(--glow-g)}
.signal__dot.amber{background:var(--amber);box-shadow:0 0 24px rgba(245,158,11,.5)}
.signal__dot.red{background:var(--primary);box-shadow:var(--glow-r)}
.signal__meta{display:flex;flex-direction:column;line-height:1.15}
.signal__label{font-size:10.5px;color:var(--muted)}
.signal__state{font-size:15px;font-weight:700}
.signal__track{height:4px;border-radius:99px;background:rgba(255,255,255,.1);overflow:hidden}
.signal__track i{display:block;height:100%;width:100%;background:linear-gradient(90deg,var(--cyan),var(--blue));
  transition:width .12s linear,background .3s}
.signal__next{font-size:10.5px;color:var(--muted)}
.icon-btn{pointer-events:auto;width:44px;height:44px;border-radius:14px;display:grid;place-items:center;cursor:pointer;
  color:var(--text);transition:transform .2s var(--ease),background .2s}
.icon-btn svg{width:20px;height:20px;fill:currentColor}
.icon-btn:hover{transform:translateY(-2px);background:rgba(255,255,255,.12)}
/* ---------- bottom ---------- */
.hud__bottom{position:absolute;bottom:max(14px,env(safe-area-inset-bottom));inset-inline:14px;display:flex;
  align-items:flex-end;justify-content:space-between;gap:12px}
.cluster{padding:12px 16px;border-radius:var(--r);min-width:238px}
.speedo{display:flex;align-items:baseline;gap:6px}
.speedo__value{font-size:44px;font-weight:700;line-height:1;color:#fff;text-shadow:0 0 22px rgba(96,165,250,.45)}
.speedo__unit{font-size:11px;color:var(--muted)}
.speedo__bar{margin-top:8px;height:6px;border-radius:99px;background:rgba(255,255,255,.1);overflow:hidden}
.speedo__bar i{display:block;height:100%;width:0;border-radius:99px;
  background:linear-gradient(90deg,var(--accent),var(--cyan) 55%,var(--primary));transition:width .1s linear}
.cluster__row{display:flex;gap:8px;margin-top:10px;flex-wrap:wrap}
.chip{font-size:11px;color:var(--muted);background:rgba(255,255,255,.06);border:1px solid var(--stroke);
  padding:3px 9px;border-radius:99px;white-space:nowrap}
.chip b{color:var(--text)}
.hud__hint{font-size:11px;color:var(--dim);text-align:end;max-width:42ch}
/* ---------- toasts / flash ---------- */
.toasts{position:absolute;top:23%;inset-inline:0;display:flex;flex-direction:column;align-items:center;gap:8px}
.toast{padding:8px 16px;border-radius:99px;font-weight:700;font-size:14px;background:rgba(9,14,26,.8);
  border:1px solid var(--stroke-2);backdrop-filter:blur(8px);animation:toastIn .45s var(--ease) both}
.toast--near{color:var(--cyan);box-shadow:0 0 26px rgba(34,211,238,.28)}
.toast--warn{color:var(--amber);box-shadow:0 0 26px rgba(245,158,11,.26)}
.toast--good{color:var(--accent-2);box-shadow:var(--glow-g)}
.toast--bad{color:var(--primary-2)}
.toast.out{animation:toastOut .34s ease forwards}
.flash{position:absolute;inset:0;background:radial-gradient(circle at 50% 60%,rgba(220,38,38,.55),transparent 65%);
  opacity:0;transition:opacity .16s linear}
.vignette{position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(ellipse at center,transparent 52%,rgba(0,0,0,.5) 100%);
  opacity:calc(var(--speed-t,0) * .9 + .22)}
/* ---------- overlays ---------- */
.overlay{position:absolute;inset:0;z-index:10;display:grid;place-items:center;padding:18px;overflow:auto;
  background:radial-gradient(ellipse at 50% 0%,rgba(37,99,235,.16),transparent 60%),rgba(4,7,14,.82);
  backdrop-filter:blur(6px);animation:overlayIn .35s var(--ease) both}
.overlay--menu{background:linear-gradient(180deg,rgba(4,7,14,.55) 0%,rgba(4,7,14,.92) 60%)}
.loader{display:grid;gap:14px;justify-items:center;text-align:center}
.loader__ring{width:56px;height:56px;border-radius:50%;border:3px solid rgba(255,255,255,.12);
  border-top-color:var(--cyan);animation:spin 1s linear infinite}
.loader__text{color:var(--muted);font-size:13px;margin:0}
.loader__bar{width:min(320px,70vw);height:5px;border-radius:99px;background:rgba(255,255,255,.1);overflow:hidden}
.loader__bar i{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--cyan),var(--violet));
  transition:width .3s var(--ease)}
/* ---------- menu ---------- */
.menu{width:min(1040px,100%);border-radius:var(--r-lg);padding:clamp(18px,3vw,34px);animation:riseIn .6s var(--ease) both}
.badge{display:inline-block;font-family:var(--font-mono);font-size:11px;color:var(--cyan);
  border:1px solid rgba(34,211,238,.35);background:rgba(34,211,238,.08);padding:4px 10px;border-radius:99px}
.menu__title{font-family:var(--font-disp);font-size:clamp(30px,5.4vw,58px);line-height:1.02;margin:14px 0 8px;letter-spacing:-.01em}
.neon{color:#fff;text-shadow:0 0 18px rgba(96,165,250,.75),0 0 44px rgba(37,99,235,.4)}
.neon-alt{color:var(--primary-2);text-shadow:0 0 22px rgba(220,38,38,.6)}
.menu__sub{color:var(--muted);font-size:clamp(13px,1.6vw,15px);margin:0;max-width:62ch;line-height:1.7}
.menu__grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:14px;margin:20px 0}
.card{background:rgba(255,255,255,.04);border:1px solid var(--stroke);border-radius:var(--r);padding:16px 18px;
  transition:transform .3s var(--ease),border-color .3s,box-shadow .3s}
.card:hover{transform:translateY(-3px);border-color:var(--stroke-2);box-shadow:0 18px 40px rgba(0,0,0,.4)}
.card h3{margin:0 0 10px;font-size:15px;color:#fff}
.list{margin:0;padding-inline-start:18px;color:var(--muted);font-size:13px;line-height:1.9}
.list li::marker{color:var(--cyan)}
.menu__row{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin:8px 0 18px}
.menu__rowlabel{font-size:12.5px;color:var(--muted)}
.pills{display:flex;gap:8px;flex-wrap:wrap}
.pill{cursor:pointer;font-family:var(--font-ar);font-size:13px;color:var(--muted);background:rgba(255,255,255,.05);
  border:1px solid var(--stroke);padding:8px 16px;border-radius:99px;transition:all .25s var(--ease)}
.pill:hover{color:#fff;transform:translateY(-2px);border-color:var(--stroke-2)}
.pill.is-active{color:#04120a;background:linear-gradient(180deg,var(--accent-2),var(--accent));
  border-color:transparent;box-shadow:var(--glow-g);font-weight:700}
.menu__actions{display:flex;gap:10px;flex-wrap:wrap;align-items:center}
.btn{cursor:pointer;font-family:var(--font-ar);font-size:14px;font-weight:600;color:var(--text);
  border-radius:14px;padding:12px 20px;display:inline-flex;align-items:center;gap:8px;
  transition:transform .22s var(--ease),box-shadow .22s,background .22s;border:1px solid var(--stroke)}
.btn:hover{transform:translateY(-2px);box-shadow:0 14px 30px rgba(0,0,0,.42)}
.btn:active{transform:translateY(0) scale(.99)}
.btn--primary{background:linear-gradient(180deg,#ef4444,var(--primary));border-color:transparent;color:#fff;
  box-shadow:var(--glow-r);font-weight:800}
.btn--primary:hover{box-shadow:0 0 34px rgba(220,38,38,.6)}
.btn .key{font-size:10.5px;background:rgba(0,0,0,.28);padding:2px 7px;border-radius:6px}
.menu__foot{margin-top:18px;padding-top:14px;border-top:1px solid var(--stroke);color:var(--dim);font-size:12px;
  display:flex;gap:8px;flex-wrap:wrap;align-items:center}
.sep{opacity:.5}
/* ---------- dialogs (pause / crash) ---------- */
.dialog{width:min(560px,100%);border-radius:var(--r-lg);padding:clamp(20px,3vw,30px);text-align:center;
  animation:riseIn .45s var(--ease) both}
.dialog h2{margin:0 0 6px;font-family:var(--font-disp);font-size:clamp(22px,3.4vw,34px);color:#fff}
.dialog__stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(96px,1fr));gap:10px;margin:18px 0}
.dialog__stats>div{background:rgba(255,255,255,.05);border:1px solid var(--stroke);border-radius:12px;padding:10px 6px;
  display:flex;flex-direction:column;gap:4px}
.dialog__stats span{font-size:11px;color:var(--muted)}
.dialog__stats b{font-size:19px}
.dialog__actions{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;margin-top:6px}
.dialog--crash{border-color:rgba(220,38,38,.4);box-shadow:0 0 60px rgba(220,38,38,.22),var(--shadow)}
.crash__tag{font-family:var(--font-mono);font-size:11px;letter-spacing:.16em;color:var(--primary-2)}
.crash__title{color:#fff;text-shadow:0 0 26px rgba(220,38,38,.6)}
.record{margin:4px 0 0;color:var(--accent-2);font-weight:700;font-size:13.5px;animation:pulseG 1.6s ease-in-out infinite}
.muted{color:var(--muted)}
.tiny{font-size:11.5px;margin:12px 0 0}
.fatal{position:fixed;inset:0;display:grid;place-items:center;color:var(--text);background:var(--bg);padding:24px;text-align:center}
/* non-blocking "still loading on a slow link" notice — never covers the loader */
.overlay--soft{z-index:12;background:transparent;backdrop-filter:none;pointer-events:none;animation:none;
  place-items:end center;padding-bottom:calc(env(safe-area-inset-bottom) + 16px)}
.overlay--soft .dialog{background:var(--panel-2);border-color:var(--stroke)}
/* ---------- touch ---------- */
.touch{position:absolute;inset:0;z-index:6;display:none;pointer-events:none}
.touch__pad{position:absolute;bottom:max(16px,env(safe-area-inset-bottom));inset-inline-start:16px;width:44%;height:34%;
  border-radius:22px;border:1px dashed rgba(255,255,255,.14);background:rgba(255,255,255,.03);pointer-events:auto;
  display:grid;place-items:center;touch-action:none}
.touch__label{color:var(--dim);font-size:11.5px}
.touch__pedals{position:absolute;bottom:max(16px,env(safe-area-inset-bottom));inset-inline-end:16px;display:grid;gap:10px;
  pointer-events:auto}
.pedal{width:78px;height:66px;border-radius:20px;border:1px solid var(--stroke-2);background:rgba(15,23,42,.66);
  color:var(--text);font-size:20px;backdrop-filter:blur(8px);touch-action:none;cursor:pointer}
.pedal--gas{background:linear-gradient(180deg,rgba(34,197,94,.3),rgba(34,197,94,.12));border-color:rgba(34,197,94,.4)}
.pedal--brake{background:linear-gradient(180deg,rgba(220,38,38,.3),rgba(220,38,38,.12));border-color:rgba(220,38,38,.4)}
.pedal:active{transform:scale(.96)}
/* on-screen pedals only for real touch pointers — a narrow desktop window keeps the keys */
@media (pointer:coarse){ .touch{display:block} }
/* compact HUD for any narrow viewport */
@media (max-width:820px){ .hud__hint{display:none} .cluster{min-width:196px}
  .speedo__value{font-size:34px} .hud__stats{gap:10px;padding:8px 12px} .stat{min-width:58px} .stat__value{font-size:17px}
  .hud__signal{min-width:132px;padding:8px 10px} .signal__next{display:none} }
@media (max-width:560px){ .hud__top{inset-inline:8px;gap:6px} .hud__stats{gap:8px} .stat--muted{display:none}
  .toasts{top:30%} .menu__grid{grid-template-columns:1fr} }
/* ---------- animations ---------- */
@keyframes spin{to{transform:rotate(360deg)}}
@keyframes overlayIn{from{opacity:0}to{opacity:1}}
@keyframes riseIn{from{opacity:0;transform:translateY(18px) scale(.985)}to{opacity:1;transform:none}}
@keyframes toastIn{from{opacity:0;transform:translateY(10px) scale(.94)}to{opacity:1;transform:none}}
@keyframes toastOut{to{opacity:0;transform:translateY(-12px) scale(.96)}}
@keyframes pulseG{0%,100%{opacity:.75}50%{opacity:1}}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.01ms !important;animation-iteration-count:1 !important;transition-duration:.01ms !important}
}
::selection{background:rgba(37,99,235,.4)}