:root{color-scheme:dark;--bg:#090909;--panel:#19191c;--text:#f5f5f5;--muted:#b7b7be;--red:#ff0033;--action:#cf002b;--line:#36363b}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font:16px/1.5 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}button,input,select,textarea{font:inherit}button,a,input,select,textarea{touch-action:manipulation}button{cursor:pointer;border:1px solid var(--line);border-radius:8px;background:var(--panel);color:var(--text);padding:12px 18px;min-height:48px}button:hover{border-color:var(--muted)}button:disabled{opacity:.45;cursor:default}a{color:inherit}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid #fff;outline-offset:4px}.primary{background:var(--action);border-color:var(--action);font-weight:700}.subtle{background:transparent}.danger{color:#ff829b}.skip{position:absolute;top:-80px}.skip:focus{top:0;background:#000;padding:15px;z-index:9}header{max-width:1240px;margin:auto;padding:24px 32px;display:flex;align-items:center;gap:16px;border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;text-decoration:none;gap:10px;font-size:23px;letter-spacing:3px;font-weight:300}.brand img{width:46px;height:46px}.brand b{color:var(--red)}.badge,.eyebrow{font-size:11px;letter-spacing:2px;font-weight:700;color:var(--muted)}.badge{margin-left:auto}header button{padding:8px 12px}.shell{max-width:1240px;margin:auto;display:grid;grid-template-columns:180px 1fr;gap:40px;padding:32px}nav{display:flex;flex-direction:column;gap:8px;align-self:start;position:sticky;top:24px}nav button{text-align:left;background:none;border-color:transparent}nav .selected{background:var(--panel);border-left:3px solid var(--red)}main{min-width:0;min-height:70vh}h1{font-size:clamp(32px,5vw,56px);letter-spacing:-2px;line-height:1.08;margin:12px 0 20px}h2{font-size:24px;line-height:1.25;margin:0 0 12px}h3{font-size:18px;margin:0 0 8px}p{max-width:65ch;color:var(--muted)}.lead{font-size:19px}.hero{padding:24px 0 32px;border-bottom:1px solid var(--line)}.row{display:flex;gap:12px;align-items:center;flex-wrap:wrap}.between{justify-content:space-between}.grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.panel{padding:24px;background:var(--panel);border:1px solid var(--line);border-radius:12px;margin-top:20px}.workout{display:block;text-align:left;width:100%;padding:24px;margin-top:16px;background:none;border-radius:0;border-width:0 0 1px}.workout strong{display:block;font-size:23px}.workout small{color:var(--muted)}.workout .arrow{float:right;color:var(--red);font-size:28px}.stat{font-size:36px;font-weight:700;font-variant-numeric:tabular-nums}.timer{font-size:clamp(48px,9vw,80px);font-weight:650;letter-spacing:-3px;font-variant-numeric:tabular-nums;line-height:1.2}.timer small{font-size:16px;letter-spacing:0}label{display:block;font-size:14px;color:var(--muted);margin:14px 0 6px}input,select,textarea{background:#090909;color:white;border:1px solid #666;border-radius:6px;padding:12px;max-width:100%;width:100%}textarea{min-height:130px;resize:vertical}.fields{display:grid;grid-template-columns:1fr 1fr 1fr;gap:12px}.note{border-left:2px solid var(--red);padding-left:16px;font-size:14px}ol,ul{padding-left:24px}li{margin:10px 0}progress{width:100%;accent-color:var(--red);height:6px}.empty{padding:40px 0}.log{padding:20px 0;border-bottom:1px solid var(--line)}.log p{margin:4px 0}.list{margin-top:24px}.rest{color:#fff}.hide{display:none!important}footer{max-width:1240px;margin:30px auto;padding:24px 32px;color:var(--muted);font-size:12px;border-top:1px solid var(--line)}#notice:not(:empty){position:fixed;bottom:20px;left:50%;transform:translateX(-50%);background:#f5f5f5;color:#111;padding:16px 24px;border-radius:8px;max-width:90%;z-index:5}details{border-bottom:1px solid var(--line);padding:16px 0}summary{cursor:pointer;font-weight:600;min-height:40px}.pill{display:inline-block;border:1px solid var(--line);padding:4px 10px;border-radius:20px;font-size:12px;color:var(--muted)}@media(max-width:760px){header{padding:16px;gap:8px}.brand{font-size:19px;letter-spacing:2px}.brand img{width:36px;height:36px}.badge{font-size:9px;letter-spacing:0}.shell{display:block;padding:0 16px 24px}nav{position:sticky;top:0;z-index:2;flex-direction:row;justify-content:space-between;background:var(--bg);padding:12px 0;gap:0;border-bottom:1px solid var(--line)}nav button{padding:10px;min-width:0;font-size:14px}nav .selected{border-left:0;border-bottom:2px solid var(--red);border-radius:0}h1{letter-spacing:-1px}.grid{grid-template-columns:1fr}.panel{padding:18px}.fields{gap:8px}.fields input,.fields select{padding:10px 7px}.hero{padding-top:24px}footer{padding:24px 16px}.row button{flex-grow:1}}@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;animation:none!important;transition:none!important}}
.cardio-stage{border-left:6px solid var(--zone,#aaa)}.cardio-stage[data-zone="1"]{--zone:#a7a7af}.cardio-stage[data-zone="2"]{--zone:#54b5ff}.cardio-stage[data-zone="3"]{--zone:#60cf91}.cardio-stage[data-zone="4"]{--zone:#ff9a45}.cardio-stage #targetZone{color:var(--zone);font-size:1.4rem}.cardio-stage progress{accent-color:var(--zone)}#cardioPreview{margin-top:1.5rem}#machine,#intensity{width:100%;margin-bottom:1rem}#intervalClock{font-variant-numeric:tabular-nums}