:root{--sky:#9ecbff;--ink:#f2f6fa;--green:#a5e25d;--panel-a:#283c52f0;--panel-b:#101b28f5}*{box-sizing:border-box}html,body{background:var(--sky);width:100%;height:100%;margin:0;padding:0;overflow:hidden}body{color:var(--ink);-webkit-user-select:none;user-select:none;font-family:Trebuchet MS,Segoe UI,system-ui,sans-serif}#app{position:fixed;inset:0}canvas.game-canvas{width:100%;height:100%;display:block}#ui{pointer-events:none;z-index:20;position:fixed;inset:0}.hidden{display:none!important}#overlay{pointer-events:auto;background:radial-gradient(circle at 50% 32%,#162c4a80,#070c14c7);justify-content:center;align-items:center;padding:24px;display:flex;position:absolute;inset:0}.panel{text-align:center;background:linear-gradient(180deg, var(--panel-a), var(--panel-b));border:2px solid #ffffff38;border-radius:4px;width:min(560px,100%);padding:34px 36px 24px;box-shadow:0 0 0 4px #00000040,0 26px 70px #0000008c,inset 0 0 50px #00000040}.logo{letter-spacing:.1em;text-shadow:5px 5px #00000059;font-size:clamp(46px,8.4vw,74px);font-weight:800;line-height:1}.logo span{color:var(--green);text-shadow:5px 5px #00000059,0 0 28px #96e65a59}.tagline{letter-spacing:.32em;text-transform:uppercase;color:#b9c8d8;margin-top:12px;font-size:12px}#play-button{letter-spacing:.08em;text-transform:uppercase;color:#1d2a12;cursor:pointer;background:linear-gradient(#a8dc66,#7bb43f);border:2px solid #d6f0ae;border-radius:2px;margin:28px auto 24px;padding:14px 36px;font-family:inherit;font-size:15px;font-weight:700;transition:filter .12s,transform 60ms,box-shadow 60ms;display:block;box-shadow:0 4px #4f7627,0 10px 22px #00000059}#play-button:hover{filter:brightness(1.08)}#play-button:active{transform:translateY(3px);box-shadow:0 1px #4f7627}.keys{text-align:left;color:#cfdae6;grid-template-columns:1fr 1fr;gap:8px 20px;max-width:430px;margin:0 auto;font-size:13px;display:grid}.keys>div{align-items:center;gap:10px;display:flex}kbd{text-align:center;color:#fff;background:#ffffff14;border:1px solid #ffffff38;border-bottom-width:2px;border-radius:3px;min-width:82px;padding:4px 6px;font-family:Consolas,Courier New,monospace;font-size:11px}.keys span{opacity:.85}.save-note{letter-spacing:.02em;color:#91a3b5;border-top:1px dashed #ffffff24;margin-top:22px;padding-top:14px;font-size:11px}.version{letter-spacing:.22em;text-transform:uppercase;color:#ffffff52;margin-top:8px;font-family:Consolas,Courier New,monospace;font-size:10px}#crosshair{opacity:0;width:20px;height:20px;margin:-10px 0 0 -10px;transition:opacity .15s;position:absolute;top:50%;left:50%}#ui.playing #crosshair{opacity:1}#crosshair:before,#crosshair:after{content:"";filter:drop-shadow(1px 0 #000000b3)drop-shadow(-1px 0 #000000b3)drop-shadow(0 1px #000000b3)drop-shadow(0 -1px 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#ffffff47}#block-label{letter-spacing:.04em;color:#fff;opacity:0;text-shadow:1px 1px #000000d9;white-space:nowrap;background:#00000073;border-radius:2px;padding:4px 12px;font-size:13px;transition:opacity .2s;position:absolute;bottom:92px;left:50%;transform:translate(-50%)}#block-label.show{opacity:1}#hint{color:#ffffffb8;text-shadow:1px 1px 2px #000000d9;opacity:0;max-width:34vw;font-size:11.5px;line-height:1.6;transition:opacity .4s;position:absolute;bottom:100px;left:18px}#ui.playing #hint:not(.hidden){opacity:1}#debug{color:#e8eef4;white-space:pre;text-shadow:0 1px #0009;background:#0000007a;border:1px solid #ffffff1a;border-radius:3px;margin:0;padding:9px 12px;font-family:Consolas,Courier New,monospace;font-size:12px;line-height:1.55;position:absolute;top:10px;left:10px}#toast{letter-spacing:.04em;color:#fff;opacity:0;pointer-events:none;background:#0000008c;border:1px solid #ffffff1f;border-radius:2px;padding:7px 16px;font-size:12.5px;transition:opacity .25s,transform .25s;position:absolute;bottom:140px;left:50%;transform:translate(-50%)translateY(6px)}#toast.show{opacity:1;transform:translate(-50%)translateY(0)}#water-tint{opacity:0;background:linear-gradient(#14549252,#06264c8c);transition:opacity .25s;position:absolute;inset:0}#ui.underwater #water-tint{opacity:1}#vignette{opacity:.85;background:radial-gradient(#0000 52%,#0000004d 100%);position:absolute;inset:0}@media (width<=560px){.panel{padding:26px 20px 18px}.keys{grid-template-columns:1fr;gap:7px;max-width:300px}.slot{width:38px;height:38px}.slot .icon{width:30px;height:30px}#hint{display:none}}