@import "https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700&family=Noto+Sans+JP:wght@500;700;900&display=swap";:root{color:#f5f2e8;font-synthesis:none;--lime:#d7ff4f;--cream:#f5f2e8;--ink:#171814;--line:#f5f2e824;background:#171814;font-family:DM Sans,Noto Sans JP,sans-serif}*{box-sizing:border-box}body{background:#171814;min-width:320px;min-height:100vh;margin:0}button{font:inherit}.app-shell{background:radial-gradient(circle at 32% 44%,#71822f1f,#0000 29%),#171814;grid-template-rows:auto 1fr auto;min-height:100vh;display:grid;overflow:hidden}.topbar{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;height:82px;padding:0 clamp(24px,5vw,72px);display:flex}.brand{color:var(--cream);letter-spacing:.16em;align-items:center;gap:11px;font-size:20px;font-weight:900;text-decoration:none;display:flex}.brand-dot{background:var(--lime);border-radius:50%;width:16px;height:16px;box-shadow:0 0 22px 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p{color:#55594f;letter-spacing:.35em;margin:0;font-size:9px;font-weight:700}footer div{align-items:baseline;gap:10px;display:flex}footer span{color:#686c62;letter-spacing:.1em;font-size:9px}footer strong{font-size:14px}button{transition:transform .16s,border-color .16s}button:hover{border-color:#d7ff4f80;transform:translateY(-1px)}button:focus-visible,a:focus-visible{outline:3px solid var(--lime);outline-offset:3px}@media (width<=850px){main{grid-template-columns:1fr;gap:34px;padding:34px 24px}.timer-stage{min-height:420px}.settings-panel{width:min(560px,100%);margin:auto}.pulse-label{bottom:12%;right:10%}}@media (width<=480px){.topbar{height:68px;padding:0 18px}.topbar>p{display:none}.brand{font-size:17px}.sound-button{width:40px;height:40px}main{gap:30px;padding:26px 16px 34px}.session-head{align-items:center}.session-head h1{font-size:25px}.round-chip{padding:7px 10px}.timer-stage{min-height:340px}.timer-ring{width:min(310px,88vw)}.timer-face 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