:root{font-family:ui-sans-serif,-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;color:#1d211e;background:#f5f5f3;font-synthesis:none}*{box-sizing:border-box}body{margin:0}main{width:min(100%,520px);min-height:100svh;margin:auto;padding:28px 24px;display:flex;flex-direction:column;justify-content:center}.top{display:flex;justify-content:space-between;align-items:center;color:#666c66;font-size:14px;margin-bottom:52px}button{font:inherit;cursor:pointer;border:0;background:transparent;min-height:56px;min-width:56px;border-radius:12px;color:inherit;-webkit-tap-highlight-color:transparent}button:focus-visible{outline:2px solid #537057;outline-offset:5px}button:hover{background:#e9eae6}button:disabled{opacity:.25;cursor:default}#sound{font-size:25px;min-width:48px;min-height:48px}section{text-align:center}#phase{font-size:18px;font-weight:400;color:#636b63;margin:0 0 8px}#time{font-size:clamp(78px,21vw,124px);line-height:1.2;letter-spacing:-6px;font-weight:400;font-variant-numeric:tabular-nums}.controls{display:grid;grid-template-columns:64px 1fr 64px;gap:16px;margin-top:56px;align-items:center}.controls>button{font-size:25px}#toggle{font-size:17px;background:#222a24;color:#fff;min-height:64px}#toggle:hover{background:#354239}.resting #phase{color:#536f80}.resting #toggle{background:#3f5967}.sr-only{position:absolute;width:1px;height:1px;padding:0;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}@media(max-width:360px){main{padding:22px 18px}.controls{gap:10px;grid-template-columns:56px 1fr 56px}#time{letter-spacing:-4px}}@media(prefers-color-scheme:dark){:root{background:#171a18;color:#eff0ec}.top,#phase{color:#9ba49c}button:hover{background:#282e29}#toggle{background:#dce4dc;color:#1c251d}#toggle:hover{background:#bdcdbd}.resting #phase{color:#9ab8cb}.resting #toggle{background:#bad0dc;color:#1c2b34}}

#settings{margin-top:36px;color:#656d66;font-size:13px}summary{cursor:pointer;list-style:none;text-align:center;padding:14px;min-height:44px}summary::-webkit-details-marker{display:none}summary:focus-visible{outline:2px solid #537057;outline-offset:3px}#settings[open] summary{margin-bottom:12px}.fields{display:grid;grid-template-columns:1fr 1fr;gap:18px 16px}.fields label{display:flex;flex-direction:column;gap:7px}.fields input{width:100%;min-width:0;border:1px solid #cbd0c9;border-radius:8px;background:transparent;color:inherit;font:inherit;font-size:17px;padding:10px;min-height:46px}.fields input:focus-visible{outline:2px solid #537057}.fields input[aria-invalid=true]{border-color:#ad4444}.field-error{font-size:12px;color:#a53535}.setting-help{font-size:12px;margin:18px 0}.check{display:flex;align-items:center;gap:10px;min-height:42px}.check input{width:19px;height:19px;accent-color:#4e6352}.settings-actions{display:flex;gap:12px;justify-content:space-between}.settings-actions button{font-size:13px;min-height:44px;padding:10px 18px;background:#e7eae4}#settings-message{font-size:12px;line-height:1.5;min-height:18px;margin:14px 0}main:has(#settings[open]){padding-top:36px;padding-bottom:36px}@media(prefers-color-scheme:dark){#settings{color:#a5b0a7}.fields input{border-color:#566258}.settings-actions button{background:#2b342d}.field-error{color:#efaaaa}}

.icon-library{position:absolute;width:0;height:0;overflow:hidden;pointer-events:none}.icon{width:22px;height:22px;display:inline-block;vertical-align:middle;flex-shrink:0;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}.controls>button,#sound,#test-sound,#new-workout,summary{display:flex;align-items:center;justify-content:center;gap:10px}.controls>button{transition:transform 140ms ease,background-color 160ms ease,box-shadow 160ms ease}button:not(:disabled):active{transform:scale(.96)}#toggle:active{transform:scale(.975)}#toggle{box-shadow:0 3px 0 #101b1520}.toggle-play{width:19px;height:19px}.toggle-pause,.toggle-restart,.sound-off{display:none}#toggle[data-state=pause] .toggle-play,#toggle[data-state=restart] .toggle-play{display:none}#toggle[data-state=pause] .toggle-pause,#toggle[data-state=restart] .toggle-restart{display:inline-block}#sound[aria-pressed=true] .sound-on{display:none}#sound[aria-pressed=true] .sound-off{display:inline-block}.phase-line{display:flex;justify-content:center;align-items:center;gap:6px;margin-bottom:8px}#phase{margin:0}.done-mark{display:none;width:20px;height:20px;color:#5a7d4d}.completed .done-mark{display:inline-block;animation:check-in 350ms ease-out}.completed #phase{color:#5a7d4d}summary .icon{width:17px;height:17px;transition:transform 180ms ease}#settings[open] summary .icon{transform:rotate(-12deg)}#test-sound{font-size:13px;gap:8px}#test-sound .icon,#new-workout .icon{width:17px;height:17px}@keyframes check-in{from{opacity:0;transform:scale(.6) rotate(-15deg)}to{opacity:1;transform:scale(1) rotate(0)}}@media(prefers-color-scheme:dark){.completed #phase,.done-mark{color:#a8c59b}}@media(prefers-reduced-motion:reduce){.controls>button,summary .icon{transition:none}button:not(:disabled):active,#toggle:active{transform:none}.completed .done-mark{animation:none}}

:root{--progress-hold:#88a66d;--progress-rest:#78a6b6;--ring-color:var(--progress-hold);--progress-track:#e4e8e0}.top{margin-bottom:24px}.split-progress{position:relative;width:min(100%,340px);aspect-ratio:1;margin:0 auto;display:grid;place-items:center}.progress-ring{position:absolute;inset:0;width:100%;height:100%;transform:rotate(-90deg);pointer-events:none}.progress-ring circle{fill:none;stroke-width:3.5}.ring-track{stroke:var(--progress-track)}#ring-fill{stroke:var(--ring-color);stroke-dasharray:100;stroke-dashoffset:100;stroke-linecap:round;transition:stroke-dashoffset 100ms linear,stroke 220ms ease}.resting{--ring-color:var(--progress-rest)}.split-content{position:relative;width:100%;padding:14px;pointer-events:none}#time{font-size:clamp(72px,19vw,104px);letter-spacing:-5px}.session-progress{margin:24px auto 0;width:min(100%,340px);padding:3px 0}#session-segments{display:flex;gap:4px;height:6px}.session-segment{display:block;position:relative;flex-basis:0;min-width:0;overflow:hidden;border-radius:4px;background:#e1e7db}.session-segment.rest{background:#e1e9eb}.session-segment i{display:block;position:absolute;inset:0;transform:scaleX(0);transform-origin:left;background:var(--progress-hold);transition:transform 100ms linear}.session-segment.rest i{background:var(--progress-rest)}.session-segment.current{box-shadow:0 0 0 1px #71866335}.controls{margin-top:30px}#settings{margin-top:24px}@media(prefers-color-scheme:dark){:root{--progress-hold:#a3c486;--progress-rest:#8fbdce;--progress-track:#303a32}.session-segment{background:#303a2c}.session-segment.rest{background:#293b40}.session-segment.current{box-shadow:0 0 0 1px #a3c48650}}@media(prefers-reduced-motion:reduce){#ring-fill,.session-segment i{transition:none}}@media(max-width:360px){#time{font-size:clamp(64px,22vw,78px);letter-spacing:-4px}.top{margin-bottom:18px}.controls{margin-top:24px}}
@media(max-width:600px) and (max-height:650px){main{padding-top:16px;padding-bottom:16px}.top{margin-bottom:8px}.split-progress{width:min(100%,clamp(200px,38svh,250px))}.session-progress{margin-top:10px}.controls{margin-top:14px}#settings{margin-top:8px}#toggle{gap:7px;font-size:16px}}