:root{color-scheme:dark;--bg:#05090b;--panel:#06100b;--line:#1b3927;--green:#48db82;--bright:#a1ffb9;--muted:#75a883;--yellow:#d8d85a;--red:#ff6273}
*{box-sizing:border-box}[hidden]{display:none!important}
body{margin:0;min-height:100vh;background:radial-gradient(ellipse at 50% 25%,#0b1b11,#05090b 70%);color:#d9f4df;font:14px ui-monospace,SFMono-Regular,Consolas,monospace;padding:14px;display:grid;place-items:center;user-select:none}
.app{width:min(100%,1080px);min-height:min(94vh,800px);border:1px solid #15242a;background:#030809;padding:clamp(12px,2.6vw,26px);display:flex;flex-direction:column;gap:14px;position:relative}
.game-nav{position:relative;z-index:4;display:flex;align-items:center;justify-content:flex-start;gap:12px;padding:7px 10px;border:1px solid var(--line);background:#06100b}.nav-label{color:var(--green);font-size:10px;font-weight:bold;letter-spacing:.15em}.game-select{width:min(260px,65%);appearance:none;border:1px solid #285039;background:#0a1b10;color:var(--bright);font:10px ui-monospace,SFMono-Regular,Consolas,monospace;letter-spacing:.08em;padding:8px 26px 8px 10px;cursor:pointer}.game-select option{background:#07100f;color:#d9f4df}
header{display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);padding:0 0 12px;letter-spacing:.12em}.brand{font-size:clamp(13px,2.2vw,18px);font-weight:bold;color:var(--green)}.status{font-size:10px;color:var(--yellow);letter-spacing:.16em}.info{display:flex;justify-content:space-between;gap:10px;flex-wrap:wrap;color:var(--muted);font-size:11px;letter-spacing:.08em}.info b{color:var(--bright)}
.stage{flex:1;min-height:400px;display:grid;grid-template-columns:repeat(7,minmax(0,1fr));gap:clamp(4px,1vw,10px);align-items:stretch}.lane{min-width:0;position:relative;border:1px solid #173a27;background:linear-gradient(#06100b,#030809);display:flex;flex-direction:column;align-items:center;overflow:hidden;opacity:.48;transition:opacity .15s,border-color .15s,box-shadow .15s}.lane.active{opacity:1;border-color:var(--green);box-shadow:0 0 18px #48db8218}.lane.done{opacity:.8;border-color:#34734a;background:#07140c}.lane-head{width:100%;padding:9px 2px;text-align:center;border-bottom:1px solid var(--line);font-size:clamp(8px,1.2vw,11px);color:var(--muted);letter-spacing:.12em}.lane.active .lane-head{color:var(--bright)}.lane-key{height:38px;display:grid;place-items:center;font-size:20px;font-weight:bold;color:#2b6540}.lane.active .lane-key{color:var(--yellow);text-shadow:0 0 12px #d8d85a60}.track{position:relative;flex:1;width:100%;overflow:hidden}.hitline{position:absolute;left:0;right:0;top:50%;height:54px;transform:translateY(-50%);border-top:1px solid #62ff9190;border-bottom:1px solid #62ff9190;background:#48db8210;pointer-events:none}.falling{position:absolute;z-index:1;left:0;right:0;height:42px;display:grid;place-items:center;transform:translateY(-50%);color:#347b4d;font-size:16px;font-weight:bold}.falling.target{z-index:2;color:var(--yellow);font-size:22px;text-shadow:0 0 14px #d8d85a65}.lane.active .falling.dot{color:#479364}.lane.done .lane-key{color:var(--bright)}
.hint{text-align:center;color:var(--muted);font-size:10px;letter-spacing:.1em}.progress{display:flex;justify-content:center;gap:8px;border-top:1px solid var(--line);padding-top:12px}.pip{width:20px;height:6px;border:1px solid #31543b}.pip.done{background:var(--green);border-color:var(--green)}
.overlay{position:absolute;inset:0;background:#020607ef;display:grid;place-items:center;padding:18px;z-index:3}.card{width:min(100%,460px);background:#07100f;border:1px solid #28613c;padding:28px;text-align:center;box-shadow:0 0 40px #42ff8812}.eyebrow{font-size:10px;color:var(--green);letter-spacing:.24em}h1{font-size:clamp(23px,5vw,34px);margin:14px 0;letter-spacing:.06em;color:#d7ffe1}p{font-size:13px;color:#8bb79a;line-height:1.65;margin:0 0 22px}.go{background:var(--green);border:0;color:#041008;font:bold 12px ui-monospace,monospace;letter-spacing:.14em;padding:13px 24px;cursor:pointer}.overlay.result-success{background:rgba(2,15,7,.93)}.overlay.result-failure{background:rgba(20,3,6,.94)}.overlay.result-success .card{border-color:var(--green);box-shadow:0 0 0 2px #48db8240,0 0 56px #48db8230}.overlay.result-failure .card{border-color:var(--red);box-shadow:0 0 0 2px #ff627340,0 0 56px #ff627330}.overlay.result-success .card:before,.overlay.result-failure .card:before{display:block;padding:9px 12px;font-size:12px;font-weight:800;letter-spacing:.18em;margin-bottom:4px}.overlay.result-success .card:before{content:"✓  SUCCESS";color:var(--bright);background:#123b25;border:1px solid var(--green)}.overlay.result-failure .card:before{content:"✕  FAILED";color:#ffc0c6;background:#401319;border:1px solid var(--red)}.overlay.result-success .go{background:#62ff91}.overlay.result-failure .go{background:var(--red);color:#190408}
@media(max-width:600px){body{padding:5px}.app{min-height:96vh;padding:9px;gap:10px}.stage{min-height:350px;gap:3px}.lane-head{font-size:7px;padding:7px 0}.lane-key{height:30px;font-size:16px}.falling{font-size:12px}.falling.target{font-size:18px}.hitline{height:46px}.info{font-size:9px}}
.home-link{display:inline-flex;align-items:center;justify-content:center;white-space:nowrap;border:1px solid #285039;background:#0a1b10;color:var(--bright);font:10px ui-monospace,SFMono-Regular,Consolas,monospace;letter-spacing:.08em;padding:8px 10px;text-decoration:none;cursor:pointer}.home-link:hover,.home-link:focus-visible{border-color:var(--green);background:#102118;outline:none}
.game-nav .nav-label{margin-right:auto}