:root{color-scheme:dark;--bg:#090f13;--panel:#101b21;--line:#28383c;--text:#e4eee6;--dim:#91a7a8;--mint:#a4e6bd;--rose:#f39eab;font-family:'Segoe UI','Malgun Gothic',sans-serif}
*{box-sizing:border-box}html,body{width:100%;height:100%;margin:0;overflow:hidden;background:var(--bg);color:var(--text)}button{-webkit-tap-highlight-color:transparent;font:inherit;cursor:pointer}button:focus-visible,canvas:focus-visible{outline:2px solid var(--mint);outline-offset:3px}button:disabled{opacity:.5;cursor:wait}[hidden]{display:none!important}
.game-screen{position:fixed;inset:0;overflow:hidden;background:#0b171b}#arena{display:block;width:100vw;height:100vh;height:100dvh;outline:none;cursor:crosshair;touch-action:none}
.menu-toggle{position:fixed;z-index:30;top:max(16px,env(safe-area-inset-top));right:max(16px,env(safe-area-inset-right));width:48px;height:48px;border:1px solid #9bb8aa55;border-radius:50%;background:#101b21dc;color:var(--text);display:grid;align-content:center;justify-items:center;gap:5px;backdrop-filter:blur(12px);transition:transform .24s cubic-bezier(.2,.8,.2,1),background .18s}
.restart-float{position:fixed;z-index:19;top:max(72px,calc(env(safe-area-inset-top) + 56px));right:max(16px,env(safe-area-inset-right));min-width:88px;height:38px;padding:0 11px;border:1px solid #9bb8aa66;border-radius:20px;background:#101b21dc;color:var(--text);font-weight:800;line-height:1;backdrop-filter:blur(8px)}.restart-float span{margin-left:4px;font-size:11px}
.test-toggle{position:fixed;z-index:30;top:max(21px,calc(env(safe-area-inset-top) + 5px));right:max(76px,calc(env(safe-area-inset-right) + 60px));height:38px;padding:0 14px;border:1px solid #9bb8aa66;border-radius:20px;background:#101b21dc;color:var(--text);font-size:12px;font-weight:800}.test-panel{position:fixed;z-index:31;top:max(116px,calc(env(safe-area-inset-top) + 100px));right:max(16px,env(safe-area-inset-right));padding:8px;border:1px solid #51645c88;border-radius:10px;background:#101b21f5}.test-panel button{min-width:104px;height:38px;padding:0 12px;border:1px solid #51645c88;border-radius:6px;background:#192a2f;color:var(--text);font-weight:800}.test-panel button[aria-pressed="true"]{background:#a4e6bd;color:#152e28}
.level-overlay{position:fixed;z-index:40;inset:0;display:grid;place-items:center;padding:24px;background:#02090de8}.level-content{width:min(840px,100%);text-align:center}.level-kicker{margin:0;color:#a4e6bd;font:700 12px/1 monospace;letter-spacing:3px}.level-content h2{margin:14px 0 26px;font-size:25px}.level-cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.level-card{min-height:190px;padding:22px;text-align:left;border:1px solid #658977;border-radius:12px;background:#142a29;color:#e4eee6;transition:transform .2s,background .2s}.level-card:hover,.level-card:focus-visible{transform:translateY(-5px);background:#23443a}.level-card strong,.level-card span{display:block}.level-card strong{font-size:18px;line-height:1.3}.level-card span{margin-top:16px;color:#bfd5c5;font-size:14px;line-height:1.5}.level-card small{display:block;margin-top:18px;color:#8ebaa0;font-size:11px}@media(max-width:600px){.level-cards{grid-template-columns:1fr;gap:8px}.level-card{min-height:0;padding:15px}.level-card span{margin-top:7px}.level-card small{margin-top:7px}.level-content h2{margin:10px 0 14px}}
.menu-toggle:hover{background:#1b302d}.menu-toggle:active{transform:scale(.88)}.menu-toggle span{width:19px;height:2px;background:currentColor;border-radius:2px;transition:transform .22s,width .22s}.menu-toggle[aria-expanded="true"] span:first-child{transform:translateY(7px) rotate(45deg)}.menu-toggle[aria-expanded="true"] span:nth-child(2){width:0}.menu-toggle[aria-expanded="true"] span:last-child{transform:translateY(-7px) rotate(-45deg)}
.menu-backdrop{position:fixed;z-index:10;inset:0;background:#02070bb8;backdrop-filter:blur(2px);animation:backdrop-in .18s ease-out both}
.menu-panel{position:fixed;z-index:20;top:max(16px,env(safe-area-inset-top));right:max(16px,env(safe-area-inset-right));width:min(380px,calc(100vw - 32px));max-height:calc(100dvh - 32px);overflow:auto;padding:22px;background:linear-gradient(155deg,#142329f5,#0c171cf5);border:1px solid #51645c88;border-radius:16px;box-shadow:0 24px 90px #0009;opacity:0;visibility:hidden;pointer-events:none;transform:translateY(-10px) scale(.97);transform-origin:top right;transition:transform .24s cubic-bezier(.2,.8,.2,1),opacity .16s ease,visibility .24s}
.menu-panel.open{opacity:1;visibility:visible;pointer-events:auto;transform:translateY(0) scale(1)}.menu-heading{display:flex;align-items:center;gap:13px;padding:0 52px 19px 0;border-bottom:1px solid var(--line)}.menu-mark{width:38px;height:38px;border:1px solid #8ec6a5;border-radius:50%;display:grid;place-items:center;color:var(--mint);font-size:19px}.menu-heading strong{display:block;font:700 12px/1.1 monospace;letter-spacing:1.3px}.menu-heading #phase{display:inline-block;margin-top:7px;color:#a4e6bd;font:10px/1 monospace;letter-spacing:1px}
.menu-actions{display:flex;justify-content:flex-end;gap:8px;margin:17px 0}.menu-actions button{width:44px;height:42px;flex:0 0 44px;border:1px solid #34484c;border-radius:8px;background:#192a2f;color:var(--text);font-weight:800;line-height:1}.menu-actions button:hover{background:#29413f}.menu-actions #start{width:auto;flex:1}.menu-actions .primary{background:var(--mint);border-color:var(--mint);color:#152e28}.menu-actions .primary:hover{background:#c1f3ce}.menu-actions .mute{font-size:17px}.menu-actions #restart{font-size:20px}
.stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px 12px;padding:15px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.stat span{display:block;margin-bottom:5px;color:var(--dim);font:9px/1 monospace;letter-spacing:1px}.stat strong{font:700 17px/1 Consolas,monospace;color:var(--text);font-variant-numeric:tabular-nums}.stat strong small{font-size:10px;color:var(--dim)}.health-stat,.dash-stat{grid-column:span 2}.health-stat strong,.dash-stat strong{font-size:15px}.meter{height:4px;margin-top:8px;overflow:hidden;border-radius:3px;background:#263a3e}.meter i{display:block;width:100%;height:100%;background:var(--mint);transition:width .1s}.dash-stat strong{color:var(--mint)}
.stage-panel{padding:17px 0 15px;border-bottom:1px solid var(--line)}.stage-heading{display:flex;align-items:center;justify-content:space-between;gap:12px}.stage-kicker{display:block;margin-bottom:6px;color:#97b8a7;font:10px/1 monospace;letter-spacing:1px}.stage-kicker b{margin-left:6px;color:#d6edbf;font-weight:400}.stage-heading #stage-name{font-size:18px;font-weight:700;line-height:1}.stage-tempo{display:flex;align-items:baseline;gap:5px}.stage-tempo strong{color:#e4f0bf;font:28px/1 Consolas,monospace}.stage-tempo span{color:#a5b9a4;font:9px/1 monospace}.stage-progress-row{display:flex;align-items:center;gap:10px;margin:13px 0}.stage-progress-track{height:3px;flex:1;overflow:hidden;background:#2c4841}.stage-progress-track i{display:block;width:0;height:100%;background:#b9e497}.stage-progress-row>span{min-width:56px;color:#adc2ac;text-align:right;font:10px/1 monospace}.stage-steps{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:5px;list-style:none;margin:0;padding:0}.stage-steps li{min-width:0;padding:7px 4px;border:1px solid #354b43;border-radius:5px;color:#81958c;text-align:center}.stage-steps span{display:block;overflow:hidden;font-size:9px;line-height:1.2;text-overflow:ellipsis;white-space:nowrap}.stage-steps b{display:block;margin-top:5px;font:11px/1 Consolas,monospace}.stage-steps .active{border-color:#a2cf8d;background:#2d4935;color:#e1f3cc}.stage-steps .done{color:#b4d298;border-color:#65835c}
.menu-controls{display:grid;grid-template-columns:1fr 1fr;gap:11px 16px;padding:17px 0}.menu-controls>div{display:flex;align-items:center;gap:8px;color:#b8c9c0;font-size:11px;line-height:1}.menu-controls kbd{min-width:48px;padding:5px 6px;border:1px solid #42534f;border-radius:4px;color:#e5efe6;text-align:center;font:9px/1 monospace}.status{min-height:15px;margin:0;color:#9bb2aa;font-size:10px;line-height:1.5}
@keyframes backdrop-in{from{opacity:0}to{opacity:1}}
@media(max-width:500px){.menu-toggle{top:max(12px,env(safe-area-inset-top));right:max(12px,env(safe-area-inset-right));width:44px;height:44px}.restart-float{top:max(62px,calc(env(safe-area-inset-top) + 50px));right:max(12px,env(safe-area-inset-right));min-width:82px;height:36px}.menu-panel{top:max(12px,env(safe-area-inset-top));right:max(12px,env(safe-area-inset-right));width:min(360px,calc(100vw - 24px));max-height:calc(100dvh - 24px);padding:18px;border-radius:14px}.menu-actions{margin:14px 0}.stage-steps li{padding:6px 2px}.stage-steps span{font-size:8px}.menu-controls{gap:10px 8px}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important}.menu-backdrop{backdrop-filter:none}}