:root{--ink:#123747;--muted:#66818b;--blue:#56c9e9;--paper:#f3f8f7;--line:#d4e4e6;--orange:#f3ab54;--dark:#102f40}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font-family:system-ui,-apple-system,"Noto Sans JP",sans-serif}button,input,select{font:inherit}button{cursor:pointer;border:0;font-weight:750;transition:filter .15s,transform .15s}button:hover{filter:brightness(1.05)}button:active{transform:translateY(2px)}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid #ef9b44;outline-offset:3px}button:disabled{cursor:default;opacity:.4}button:disabled:active{transform:none}a{color:inherit}.hidden{display:none!important}#app{max-width:1320px;margin:auto;padding:0 40px}.topbar{height:96px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;gap:12px;text-decoration:none;font-size:19px;letter-spacing:.04em}.brand 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p{font-size:13px;line-height:1.9}.dialog-close{position:absolute;right:12px;top:10px;font-size:25px;background:none;color:var(--muted)}#result-dialog{text-align:center;max-width:420px}#result-dialog button{justify-content:center;margin-top:12px}#final-score{font:800 52px ui-monospace,monospace;letter-spacing:.07em}.pause{position:absolute;inset:0;background:#102f40db;color:white;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:25px}.pause p{font-size:13px}.pause button{width:auto}.playing .topbar{height:70px}
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.ball-logo{display:block;width:32px;height:32px}@media(max-width:620px){.ball-logo{width:25px;height:25px}}