*{box-sizing:border-box}
html,body{margin:0;min-height:100%;background:transparent}
body{font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:#f5f7ff}

:root{color-scheme:dark}
.nd-app{
  --nd-bg:#070b14;
  --nd-panel:#0d1422;
  --nd-panel-2:#111a2a;
  --nd-border:rgba(142,170,222,.16);
  --nd-text:#f5f7ff;
  --nd-muted:#93a4c7;
  --nd-cyan:#37e7ff;
  --nd-purple:#8b5cf6;
  --nd-pink:#ff4fd8;
  --nd-lime:#8dff88;
  --nd-red:#ff557a;
  --nd-shadow:0 24px 80px rgba(0,0,0,.35);
  width:100%;
  font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  color:var(--nd-text);
}
.nd-app *{box-sizing:border-box}
.nd-stage{position:relative;max-width:1180px;margin:0 auto;background:linear-gradient(180deg,#0b111d 0%,#080d16 100%);border:1px solid var(--nd-border);border-radius:24px;overflow:hidden;box-shadow:var(--nd-shadow)}
.nd-topbar{display:flex;align-items:center;justify-content:space-between;padding:18px 20px;border-bottom:1px solid var(--nd-border);background:rgba(9,14,24,.92);backdrop-filter:blur(16px)}
.nd-brand{display:flex;align-items:center;gap:12px}.nd-dot{width:10px;height:10px;border-radius:50%;background:var(--nd-cyan);box-shadow:0 0 18px var(--nd-cyan)}
.nd-kicker{font:700 10px/1.1 ui-monospace,SFMono-Regular,Menlo,monospace;letter-spacing:.18em;color:var(--nd-cyan)}
.nd-brand h1{font-size:20px;line-height:1.1;margin:3px 0 0;font-weight:750;letter-spacing:-.02em;color:#fff}
.nd-actions{display:flex;gap:8px}.nd-icon-btn{width:40px;height:40px;border:1px solid var(--nd-border);border-radius:12px;background:#0e1625;color:#dce7ff;display:grid;place-items:center;cursor:pointer;transition:.18s ease}
.nd-icon-btn:hover{border-color:rgba(55,231,255,.55);background:#111e30;transform:translateY(-1px)}.nd-icon-btn:focus-visible,.nd-primary-btn:focus-visible,.nd-secondary-btn:focus-visible,.nd-touch-btn:focus-visible{outline:2px solid var(--nd-cyan);outline-offset:3px}
.nd-icon-btn svg{width:21px;height:21px;fill:currentColor;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}.nd-sound-off{display:none}.nd-icon-btn.is-muted .nd-sound-on{display:none}.nd-icon-btn.is-muted .nd-sound-off{display:block;color:var(--nd-red)}
.nd-hud{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--nd-border);border-bottom:1px solid var(--nd-border)}
.nd-stat{padding:13px 18px;background:#0a101c;display:flex;align-items:center;justify-content:space-between;gap:12px}.nd-stat span{font:700 9px/1 ui-monospace,SFMono-Regular,Menlo,monospace;color:#7184a9;letter-spacing:.14em}.nd-stat strong{font:700 15px/1 ui-monospace,SFMono-Regular,Menlo,monospace;color:#eef5ff}.nd-stat:first-child strong{color:var(--nd-cyan)}
.nd-canvas-wrap{position:relative;aspect-ratio:16/9;background:#03060d;overflow:hidden;isolation:isolate}.nd-canvas-wrap canvas{display:block;width:100%;height:100%;touch-action:none}.nd-scanlines{position:absolute;inset:0;pointer-events:none;z-index:3;background:repeating-linear-gradient(180deg,rgba(255,255,255,.018) 0 1px,transparent 1px 4px);mix-blend-mode:screen;opacity:.42}
.nd-overlay{position:absolute;inset:0;z-index:6;display:none;place-items:center;padding:28px;background:rgba(3,7,15,.64);backdrop-filter:blur(8px)}.nd-overlay.is-open{display:grid}
.nd-card{width:min(560px,94%);background:linear-gradient(180deg,rgba(16,25,42,.96),rgba(8,14,25,.96));border:1px solid rgba(120,154,218,.22);border-radius:24px;padding:34px;box-shadow:0 24px 80px rgba(0,0,0,.48),inset 0 1px rgba(255,255,255,.04);text-align:center}.nd-card-small{width:min(390px,92%)}
.nd-badge{display:inline-flex;padding:7px 10px;border:1px solid rgba(55,231,255,.28);border-radius:999px;background:rgba(55,231,255,.08);font:700 10px/1 ui-monospace,SFMono-Regular,Menlo,monospace;letter-spacing:.16em;color:var(--nd-cyan)}.nd-danger{color:#ff7795;border-color:rgba(255,85,122,.32);background:rgba(255,85,122,.08)}
.nd-card h2{margin:16px 0 9px;color:#fff;font-size:clamp(27px,4vw,44px);line-height:1.04;letter-spacing:-.045em}.nd-card p{max-width:50ch;margin:0 auto 22px;color:var(--nd-muted);font-size:14px;line-height:1.65}
.nd-controls-help{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin:20px 0 24px}.nd-controls-help div{border:1px solid var(--nd-border);border-radius:14px;background:rgba(9,16,29,.72);padding:12px 8px}.nd-controls-help kbd{display:block;width:max-content;margin:0 auto 7px;padding:4px 8px;border:1px solid rgba(55,231,255,.3);border-bottom-width:2px;border-radius:6px;background:#0d1b2b;color:var(--nd-cyan);font:700 11px ui-monospace,SFMono-Regular,Menlo,monospace}.nd-controls-help span{font-size:10px;color:#93a4c7}
.nd-primary-btn,.nd-secondary-btn{border:none;cursor:pointer;font-weight:750;transition:.18s ease}.nd-primary-btn{min-width:170px;border-radius:12px;padding:13px 19px;background:linear-gradient(135deg,var(--nd-cyan),#5c8cff);color:#06101c;box-shadow:0 8px 28px rgba(55,231,255,.17)}.nd-primary-btn:hover{transform:translateY(-1px);filter:brightness(1.05)}.nd-tip{display:block;margin-top:14px;font-size:11px;color:#6f81a5}
.nd-result-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:22px 0}.nd-result-grid div{padding:13px;border:1px solid var(--nd-border);border-radius:14px;background:#09111e}.nd-result-grid span{display:block;font-size:10px;text-transform:uppercase;letter-spacing:.13em;color:#7082a6}.nd-result-grid strong{display:block;margin-top:6px;font:700 20px ui-monospace,SFMono-Regular,Menlo,monospace;color:#fff}.nd-newbest{margin:-5px auto 18px;width:max-content;padding:7px 10px;border-radius:999px;background:rgba(141,255,136,.1);border:1px solid rgba(141,255,136,.3);font:700 10px ui-monospace,SFMono-Regular,Menlo,monospace;letter-spacing:.12em;color:var(--nd-lime)}
.nd-bottom-row{display:flex;align-items:center;gap:8px;padding:13px 16px;border-top:1px solid var(--nd-border);background:#09101b}.nd-status{margin-right:auto;font:650 11px ui-monospace,SFMono-Regular,Menlo,monospace;letter-spacing:.06em;color:#7f92b7}.nd-secondary-btn{border:1px solid var(--nd-border);border-radius:10px;padding:9px 13px;background:#0d1625;color:#cbd8f3;font-size:12px}.nd-secondary-btn:hover{border-color:rgba(55,231,255,.38);color:#fff}
.nd-mobile-controls{display:none;grid-template-columns:1fr 1fr;gap:10px;padding:12px;background:#080e18;border-top:1px solid var(--nd-border)}.nd-touch-btn{min-height:58px;border:1px solid rgba(86,117,174,.22);border-radius:14px;background:#0d1625;color:#dbe8ff;cursor:pointer}.nd-touch-btn span{display:block;font-size:22px;line-height:1}.nd-touch-btn small{display:block;margin-top:5px;font:700 9px ui-monospace,SFMono-Regular,Menlo,monospace;letter-spacing:.13em;color:#8093b9}.nd-touch-btn:active{transform:translateY(1px);background:#122039}.nd-touch-jump span{color:var(--nd-cyan)}.nd-touch-slide span{color:var(--nd-pink)}
.nd-info{max-width:1180px;margin:28px auto 0;padding:30px;border:1px solid rgba(16,34,55,.1);border-radius:22px;background:#fff;color:#142033;display:grid;grid-template-columns:1.1fr 1fr;gap:34px}.nd-section-label{font:800 10px ui-monospace,SFMono-Regular,Menlo,monospace;letter-spacing:.16em;color:#348a63}.nd-info h2{font-size:clamp(24px,3vw,36px);line-height:1.08;letter-spacing:-.035em;margin:8px 0 14px;color:#111827}.nd-info p{font-size:14px;line-height:1.75;color:#60708a;margin:0 0 11px}.nd-feature-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}.nd-feature-grid div{padding:18px;border-radius:15px;background:#f6f8fa;border:1px solid #e7ebef}.nd-feature-grid strong{display:block;font-size:13px;color:#182335}.nd-feature-grid span{display:block;margin-top:5px;font-size:12px;line-height:1.5;color:#748199}
.nd-stage:fullscreen{width:100vw;max-width:none;height:100vh;border:0;border-radius:0;display:flex;flex-direction:column;background:#050911}.nd-stage:fullscreen .nd-canvas-wrap{flex:1;aspect-ratio:auto;min-height:0}.nd-stage:fullscreen .nd-hud{flex:0 0 auto}.nd-stage:fullscreen .nd-topbar,.nd-stage:fullscreen .nd-bottom-row{flex:0 0 auto}.nd-stage:fullscreen .nd-mobile-controls{flex:0 0 auto}
@media(max-width:800px){.nd-stage{border-radius:18px}.nd-hud{grid-template-columns:1fr 1fr}.nd-stat{padding:11px 13px}.nd-info{grid-template-columns:1fr}.nd-mobile-controls{display:grid}.nd-bottom-row{padding-bottom:10px}.nd-controls-help{grid-template-columns:1fr}.nd-controls-help div{display:flex;align-items:center;gap:10px;text-align:left}.nd-controls-help kbd{margin:0}.nd-card{padding:25px 20px}.nd-overlay{padding:14px}}
@media(max-width:520px){.nd-topbar{padding:14px}.nd-brand h1{font-size:17px}.nd-kicker{font-size:8px}.nd-icon-btn{width:36px;height:36px}.nd-stat{padding:10px 11px}.nd-stat span{font-size:8px}.nd-stat strong{font-size:13px}.nd-canvas-wrap{aspect-ratio:4/3}.nd-info{padding:22px 18px}.nd-feature-grid{grid-template-columns:1fr}.nd-bottom-row{gap:6px}.nd-secondary-btn{padding:8px 10px;font-size:11px}.nd-status{font-size:9px}.nd-result-grid{gap:7px}.nd-result-grid strong{font-size:17px}}
@media(prefers-reduced-motion:reduce){.nd-app *{scroll-behavior:auto!important;transition:none!important;animation:none!important}}