@import url('https://fonts.googleapis.com/css2?family=Archivo:wght@500;700;900&family=Space+Grotesk:wght@400;700&display=swap');
/* TDA — Swiss poster × neon loop. Palette: paper(white) #F4F0E6, ink(black) #141414, red #E30613, blue #0B24FB. = 2 chromatic + b/w, within 3-max. */
:root{
  --paper:#F4F0E6; --ink:#141414; --red:#E30613; --blue:#0B24FB;
  --line:2px solid var(--ink);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{background:var(--paper);color:var(--ink);font-family:'Space Grotesk',Helvetica,Arial,sans-serif;font-size:16px;line-height:1.45;-webkit-font-smoothing:antialiased}
.topbar{display:flex;align-items:center;justify-content:space-between;border-bottom:var(--line);padding:10px 16px;position:sticky;top:0;background:var(--paper);z-index:5}
.brand{font-family:'Archivo',Helvetica,sans-serif;font-weight:900;letter-spacing:.02em;display:flex;align-items:center;gap:8px}
.brand .dot{width:16px;height:16px;border-radius:50%;background:var(--red);box-shadow:0 0 12px var(--red);display:inline-block}
.brand .sup{font-size:11px;font-weight:700;background:var(--ink);color:var(--paper);padding:1px 6px;border-radius:20px}
.top-meta{display:flex;gap:14px;font-size:12px;font-weight:700;letter-spacing:.12em}
.ghost{border:var(--line);background:transparent;width:34px;height:34px;border-radius:50%;font-weight:900;cursor:pointer}
.ghost:hover{background:var(--ink);color:var(--paper)}
#app{max-width:1080px;margin:0 auto;padding:24px 16px 40px}
.hero{border-bottom:var(--line);padding:18px 0 22px;margin-bottom:20px}
.kicker{font-size:12px;font-weight:700;letter-spacing:.22em;text-transform:uppercase;margin:0 0 8px}
.kicker::before{content:"";display:inline-block;width:34px;height:10px;background:var(--blue);margin-right:10px;vertical-align:middle}
h1{font-family:'Archivo',Helvetica,sans-serif;font-weight:900;font-size:clamp(48px,9vw,110px);line-height:.88;letter-spacing:-.03em;margin:0}
h1 .outline{color:transparent;-webkit-text-stroke:3px var(--ink)}
.sub{max-width:560px;font-size:17px}
.sub strong{background:var(--red);color:#fff;padding:0 8px;box-shadow:0 0 14px var(--red)}
.cta-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:12px}
.btn{font-family:'Archivo',sans-serif;font-weight:900;font-size:15px;letter-spacing:.02em;border:var(--line);background:var(--paper);color:var(--ink);padding:12px 20px;cursor:pointer;border-radius:0;box-shadow:5px 5px 0 var(--ink);transition:transform .08s,box-shadow .08s}
.btn:hover{transform:translate(-1px,-1px);box-shadow:6px 6px 0 var(--ink)}
.btn:active{transform:translate(3px,3px);box-shadow:1px 1px 0 var(--ink)}
.btn.solid{background:var(--red);color:#fff;border-color:var(--ink)}
.btn.ghostbtn{background:var(--blue);color:#fff}
.btn:disabled{opacity:.4;cursor:not-allowed;transform:none}
.btn kbd,.keys kbd{background:var(--ink);color:var(--paper);border-radius:4px;padding:1px 6px;font-size:12px;font-family:inherit}
.grid2{display:grid;grid-template-columns:1fr 300px;gap:20px}
@media(max-width:860px){.grid2{grid-template-columns:1fr}}
.board-wrap{border:var(--line);background:#fff;box-shadow:8px 8px 0 var(--ink)}
.hud{display:flex;gap:6px;flex-wrap:wrap;border-bottom:var(--line);padding:10px 12px;background:var(--paper)}
.hud .stat{flex:1 1 0;min-width:86px;border-left:2px solid var(--ink);padding-left:8px}
.hud .stat label{display:block;font-size:10px;font-weight:700;letter-spacing:.18em}
.hud .stat b{font-family:'Archivo';font-size:22px;font-variant-numeric:tabular-nums}
#combo.hot{color:var(--red);text-shadow:0 0 10px var(--red)}
.canvas-holder{position:relative;background:var(--ink);line-height:0}
canvas{width:100%;height:auto;display:block;touch-action:none;cursor:crosshair}
.overlay{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;background:rgba(20,20,20,.82);color:var(--paper);text-align:center;padding:20px;line-height:1.4}
.overlay.hidden{display:none}
.overlay h2{font-family:'Archivo';font-size:clamp(28px,6vw,54px);margin:0;letter-spacing:-.02em}
.overlay h2.rew{color:#fff;text-shadow:0 0 18px var(--red)}
.overlay p{max-width:420px;margin:0}
.overlay .btn{box-shadow:5px 5px 0 #fff}
.hud-bottom{border-bottom:0;border-top:var(--line);flex-direction:column}
.loopbar label{font-size:11px;font-weight:700;letter-spacing:.16em;display:flex;justify-content:space-between}
input[type=range]{width:100%;accent-color:var(--red);height:28px;cursor:pointer}
.seedrow{display:flex;gap:8px;flex-wrap:wrap}
.seedrow input{flex:1;min-width:140px;border:var(--line);padding:8px 10px;font:inherit;background:#fff}
.mini{border:var(--line);background:var(--ink);color:var(--paper);font-weight:700;padding:8px 12px;cursor:pointer;font-size:13px}
.mini:hover{background:var(--red)}
.dpad{display:none;gap:8px;justify-content:center;padding:12px;border-top:var(--line);background:var(--paper)}
.dpad button{width:56px;height:48px;font-size:18px;border:var(--line);background:#fff;box-shadow:3px 3px 0 var(--ink);cursor:pointer}
.dpad button:active{transform:translate(2px,2px);box-shadow:none}
@media(pointer:coarse){.dpad{display:grid;place-items:center}}
.keys{font-size:12px;padding:0 12px 14px;color:var(--ink);opacity:.7}
.side{display:flex;flex-direction:column;gap:16px}
.card{border:var(--line);background:#fff;padding:14px;box-shadow:6px 6px 0 var(--ink)}
.card h3{font-family:'Archivo';font-size:13px;letter-spacing:.2em;margin:0 0 10px;border-bottom:2px solid var(--ink);padding-bottom:8px}
.card ol{margin:0;padding-left:20px;font-size:14px;display:grid;gap:6px}
.sq{display:inline-block;width:12px;height:12px;vertical-align:baseline;border:2px solid var(--ink)}
.sq.exit{background:var(--blue)}.sq.clock{background:var(--red);border-radius:50%;box-shadow:0 0 8px var(--red)}.sq.shard{background:var(--red);transform:rotate(45deg)}
.best{font-size:13px}
.log ul,.card ul{list-style:none;margin:0;padding:0;font-size:13px;display:flex;flex-direction:column;gap:6px;max-height:220px;overflow:auto}
.log li{border-left:6px solid var(--red);padding-left:8px}
.log li.good{border-color:var(--blue)}
footer{margin-top:22px;border-top:var(--line);padding-top:10px;font-size:12px;letter-spacing:.14em;font-weight:700;display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px}
#help{position:fixed;inset:0;background:rgba(20,20,20,.6);display:grid;place-items:center;z-index:20;padding:16px}
#help.hidden{display:none}
#help .sheet{background:var(--paper);border:3px solid var(--ink);box-shadow:10px 10px 0 var(--red);max-width:480px;padding:24px}
#help kbd{background:var(--ink);color:var(--paper);border-radius:4px;padding:1px 6px}
@media(max-width:375px){h1{-webkit-text-stroke-width:2px}.hud .stat b{font-size:18px}#app{padding:16px 10px}}