:root{color-scheme:light;--ink:#283b35;--muted:#75847b;--green:#287f67;--line:#dce5df;--pink:#df6e91;--paper:#f4f7f5;font-family:Inter,"Helvetica Neue","PingFang SC","Microsoft YaHei",sans-serif;font-synthesis:none;letter-spacing:0}
*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);min-width:300px}button,a,input{ -webkit-tap-highlight-color:transparent}button{font:inherit;color:inherit;cursor:pointer;border:0;background:none}button:disabled{cursor:default;opacity:.4}a{color:inherit;text-decoration:none}button:focus-visible,a:focus-visible,input:focus-visible{outline:3px solid #df8baf;outline-offset:4px}button img{width:21px;height:21px;pointer-events:none}button[hidden],[hidden]{display:none!important}.mast{height:88px;max-width:1200px;margin:auto;padding:0 42px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}.brand{font-size:29px;font-weight:750;display:flex;align-items:baseline;gap:0}.brand>span{color:var(--pink)}.brand small{font-size:11px;font-weight:500;margin-left:14px;color:var(--muted)}.top-actions{display:flex;align-items:center;gap:15px}.language{display:flex;gap:3px;border-right:1px solid var(--line);padding-right:16px}.language button{padding:6px;font-size:12px;color:var(--muted)}.language button[aria-pressed=true]{color:var(--ink);font-weight:750}.icon{width:36px;height:36px;display:inline-flex;align-items:center;justify-content:center;border-radius:6px;position:relative}.icon:hover{background:#e4ece6}.icon[data-tooltip]:hover:after,.hold-box[data-tooltip]:hover:after,.touch[data-tooltip]:hover:after{content:attr(data-tooltip);position:absolute;bottom:calc(100% + 7px);left:50%;transform:translateX(-50%);background:#263b33;color:white;padding:7px 9px;border-radius:4px;font-size:11px;white-space:nowrap;z-index:20;pointer-events:none}main{max-width:800px;margin:0 auto;padding:30px 24px 18px}.heading{display:flex;align-items:center;justify-content:space-between;margin:0 0 24px}.eyebrow{font-size:9px;font-weight:650;color:var(--muted);margin:0 0 8px}h1{font-size:30px;font-weight:650;margin:0;line-height:1.2}.modes{display:flex;gap:3px;padding:4px;background:#e8eee9;border-radius:7px}.modes button{font-size:12px;padding:8px 15px;border-radius:4px;color:#64766a}.modes button[aria-pressed=true]{background:white;color:var(--green);box-shadow:0 2px 4px #1e3f2810}.play-layout{display:grid;grid-template-columns:150px minmax(0,320px) 132px;gap:32px;justify-content:center}.label{font-size:11px;font-weight:600;color:var(--muted);display:block}.left-rail{padding-top:22px}.score-block>strong{display:block;font-size:36px;line-height:1.5;font-weight:550;font-variant-numeric:tabular-nums}.best{font-size:10px;color:var(--muted)}.best b{font-weight:500;color:#465d50}.secondary-stats{display:grid;grid-template-columns:1fr 1fr;gap:22px 8px;margin-top:29px}.secondary-stats strong{font-size:23px;font-weight:500;display:block;margin-top:7px;font-variant-numeric:tabular-nums}.time-stat{grid-column:span 2}.time-stat strong{font-size:19px}.hold-box{position:relative;text-align:left;width:100%;margin-top:28px;border-top:1px solid var(--line);padding:20px 0 0}.hold-box canvas{width:120px;height:77px;display:block}.keycap{font-size:10px;border:1px solid #cdd8d0;border-radius:3px;min-width:18px;display:inline-block;text-align:center;padding:2px;color:#718378}.hold-box>.keycap{position:absolute;right:8px;top:15px}.flow-control{margin-top:26px}.flow-button{display:flex;gap:7px;align-items:center;width:100%;padding:0;font-size:11px}.flow-button img{width:17px;height:17px}.flow-button .keycap{margin-left:auto}.meter,.goal-track{height:4px;background:#dfe8e2;margin-top:15px;border-radius:4px;overflow:hidden}.meter i,.goal-track i{display:block;width:0;height:100%;background:var(--green);transition:width .25s}.meter i{background:linear-gradient(90deg,#78b5a7,#e28eaf)}#flow-status{font-size:10px;color:var(--muted);margin-top:9px;display:block}.board-wrap{position:relative;aspect-ratio:1/2;width:100%;background:#1f302c;border:5px solid #30473c;border-radius:8px;box-shadow:0 18px 34px #3458441c,0 2px 0 #fff inset;overflow:hidden;isolation:isolate}#board{width:100%;height:100%;display:block;touch-action:none;outline:none}.board-top{position:absolute;top:9px;left:12px;right:12px;display:flex;justify-content:space-between;pointer-events:none;color:#b8d2c4;font-size:9px}#live-dot{width:5px;height:5px;background:#92c4b0;border-radius:50%}.board-footer{display:flex;align-items:center;justify-content:space-between;margin-top:9px;color:var(--muted);font-size:10px}.board-footer>div{display:flex}.board-footer .icon{width:30px;height:30px}.board-footer img{width:16px;height:16px}.right-rail{padding-top:23px}#next-preview{width:112px;height:248px;display:block;margin-top:6px}.combo-stat{margin-top:20px;padding-top:21px;border-top:1px solid var(--line)}.combo-stat strong{font-size:30px;font-weight:500;display:block;margin-top:10px;color:#d5658b}.goal{margin-top:42px}.goal p{font-size:13px;line-height:1.6;margin:12px 0}.overlay{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;flex-direction:column;background:#1b2c25e8;backdrop-filter:blur(4px);padding:22px;text-align:center;color:#eef7f0}.overlay-spark{font-size:37px;color:#b5e3cb;margin-bottom:20px}.overlay h2{font-size:25px;margin:0 0 13px;line-height:1.4}.overlay p{font-size:12px;line-height:1.8;color:#a9c4b6;margin:0 0 22px;max-width:240px}.primary{display:inline-flex;justify-content:center;align-items:center;gap:10px;padding:13px 22px;background:#b9ebd0;color:#163c2d;border-radius:5px;font-size:13px;font-weight:650;min-width:160px}.primary:hover{background:#d3f6e2}.primary img{width:16px}.quiet{font-size:12px;color:inherit;padding:12px;margin-top:8px}.overlay .quiet{color:#aac7b6}.touch-controls{display:flex;justify-content:center;gap:9px;margin:18px auto 0;max-width:360px}.touch{position:relative;width:57px;height:47px;display:flex;align-items:center;justify-content:center;background:#fff;border:1px solid #d9e3dc;border-bottom-width:3px;border-radius:6px;touch-action:none;user-select:none}.touch:active,.touch.active{background:#dceee3;transform:translateY(2px);border-bottom-width:1px}.touch.drop{background:#daf0e2;min-width:65px}.bottom-links{display:flex;justify-content:center;gap:14px;margin-top:27px;font-size:10px;color:#83938a}.bottom-links a:hover{color:var(--green)}#callout{position:absolute;top:40%;left:0;right:0;text-align:center;color:white;font-size:28px;font-weight:700;text-shadow:0 2px 12px #14251a;pointer-events:none;opacity:0;transform:translateY(8px);transition:opacity .2s,transform .2s;z-index:2}#callout.visible{opacity:1;transform:translateY(0)}#callout small{display:block;font-size:12px;font-weight:500;margin-top:10px;color:#dbffe9}dialog{border:1px solid #dce5df;border-radius:8px;padding:26px;max-width:420px;width:calc(100% - 32px);color:var(--ink);background:#f8faf8;box-shadow:0 20px 80px #12271e30}dialog::backdrop{background:#13281d66;backdrop-filter:blur(6px)}.dialog-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px}.dialog-top h2{font-size:21px;margin:0}.setting-row{display:flex;align-items:center;justify-content:space-between;gap:20px;margin:22px 0;font-size:13px}.setting-row input[type=range]{width:135px;accent-color:var(--green)}.setting-row input[type=checkbox]{width:19px;height:19px;accent-color:var(--green)}.help-grid{display:grid;grid-template-columns:1fr auto;gap:14px;font-size:12px}.help-grid b{font-weight:500;color:var(--muted)}.dialog-note{font-size:12px;line-height:1.8;color:#697e70}.dialog-actions{display:flex;gap:10px;margin-top:20px}.dialog-actions .primary{min-width:0;flex:1}.result-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin:20px 0}.result-grid strong{display:block;font-size:26px;margin:5px 0}#toast{position:fixed;bottom:25px;left:50%;transform:translateX(-50%);padding:12px 18px;background:#284335;color:#fff;border-radius:6px;font-size:12px;pointer-events:none;z-index:50;opacity:0;transition:opacity .2s;max-width:90%;text-align:center}#toast.show{opacity:1}.flowing .board-wrap{border-color:#91cbb0;box-shadow:0 0 28px #8ec9ae65}.flowing .meter i{background:#dc8da6}.flow-button.charged{color:#b45981;animation:breathe 1.4s ease-in-out infinite}@keyframes breathe{50%{opacity:.55}}.reduced *{animation:none!important;scroll-behavior:auto!important;transition:none!important}
@media(min-width:900px) and (max-height:850px){.mast{height:68px}main{padding-top:22px}.heading{margin-bottom:18px}.play-layout{grid-template-columns:150px minmax(0,260px) 132px}.touch-controls{margin-top:7px}.bottom-links{margin-top:17px}}
@media(max-width:650px){.mast{height:66px;padding:0 19px}.brand{font-size:26px}.brand small{display:none}.top-actions{gap:8px}.language{padding-right:7px}.icon{width:32px;height:32px}main{padding:20px 16px 20px;max-width:480px}.heading{margin-bottom:18px;gap:10px}h1{font-size:25px}.eyebrow{font-size:7px;margin-bottom:6px}.modes button{padding:7px 11px;font-size:11px}.play-layout{grid-template-columns:minmax(0,1fr) 68px;gap:12px}.left-rail{grid-column:1/-1;display:grid;grid-template-columns:1fr 1fr 60px;gap:12px;padding:0}.score-block .label{font-size:9px}.score-block>strong{font-size:28px;line-height:1.25}.best{font-size:8px}.secondary-stats{margin:0;display:flex;gap:20px;padding-top:1px}.secondary-stats strong{font-size:21px;margin-top:6px}.time-stat{display:none}.label{font-size:9px}.hold-box{margin:0;padding:0;border:0;display:flex;flex-direction:column;height:62px}.hold-box canvas{width:65px;height:42px}.hold-box .keycap{display:none}.flow-control{grid-column:1/-1;display:flex;align-items:center;gap:9px;margin:0 0 3px;height:22px}.flow-button{width:auto;white-space:nowrap;font-size:10px;flex-shrink:0}.flow-button .keycap{display:none}.meter{margin:0;flex:1}#flow-status{font-size:8px;margin:0;min-width:40px}.board-wrap{border-width:4px}.board-top{font-size:8px;top:6px}.right-rail{padding-top:8px}#next-preview{width:65px;height:144px}.combo-stat{margin-top:13px;padding-top:13px}.combo-stat strong{font-size:25px}.goal{margin-top:25px}.goal p{font-size:10px;line-height:1.65;margin-top:8px}.overlay{padding:15px}.overlay h2{font-size:21px}.overlay p{font-size:11px}.primary{padding:12px 15px;min-width:135px}.overlay-spark{margin-bottom:15px;font-size:29px}.board-footer{margin-top:5px;font-size:8px}.board-footer .icon{width:27px;height:28px}.touch-controls{max-width:none;gap:8px;margin-top:12px}.touch{flex:1;width:auto;height:49px}.bottom-links{margin-top:21px;font-size:9px}#callout{font-size:23px}.keycap{display:none}}
@media(max-width:370px){main{padding:15px 12px}.modes button{padding:7px 8px}.play-layout{gap:10px;grid-template-columns:minmax(0,1fr) 56px}h1{font-size:22px}.left-rail{gap:8px}.secondary-stats{gap:13px}#next-preview{width:56px;height:124px}.overlay h2{font-size:19px}.goal p{font-size:9px}}
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}
@media(max-width:650px){.heading h1{font-size:22px;white-space:nowrap}.modes button{white-space:nowrap;padding:7px 10px}.board-column{width:min(100%,calc((100svh - 395px)/2));min-width:145px;justify-self:center}.board-footer>span{max-width:52%;line-height:1.4}.overlay h2{overflow-wrap:break-word}.overlay p{overflow-wrap:break-word}}
@media(max-width:370px){.heading h1{font-size:19px}.modes button{font-size:10px;padding:7px}.eyebrow{font-size:6px}.overlay h2{font-size:17px}.overlay p{font-size:10px}.overlay .primary{min-width:0;font-size:11px;padding:10px}.overlay-spark{font-size:24px;margin-bottom:10px}}