:root{color-scheme:light;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:#193b37;background:#eff5f2;font-synthesis:none}*{box-sizing:border-box}body{margin:0}main{max-width:680px;margin:auto;padding:28px 18px 40px}header{display:flex;gap:12px;align-items:center;margin:8px 2px 30px}header strong{font-size:20px}header small{display:block;font-size:12px;margin-top:4px;color:#607c75}.mark{width:44px;height:44px;display:grid;place-items:center;font-size:34px;border-radius:14px;background:#d8ebe4;color:#126a59}header>.pill{margin-left:auto}.card{background:#fff;border:1px solid #deebe5;border-radius:24px;padding:28px;margin:16px 0;box-shadow:0 5px 20px #153d2610}.eyebrow{font-size:13px;font-weight:600;letter-spacing:1px;color:#608077}h1{font-size:29px;line-height:1.3;margin:18px 0}h2{font-size:18px;margin:0 0 12px}p{font-size:15px;line-height:1.7}small,.muted{font-size:12px;color:#668078;line-height:1.7}label{display:block;font-size:13px;margin:24px 0 10px}input{width:100%;border:1px solid #bcd2c8;border-radius:12px;background:#f7faf8;padding:16px;font-size:16px}button{background:#146c59;color:white;border:0;border-radius:12px;font-size:16px;padding:15px 20px;cursor:pointer;margin-top:14px;width:100%}button:focus-visible,input:focus-visible{outline:3px solid #75b39d;outline-offset:3px}.pill{font-size:12px;white-space:nowrap;border-radius:30px;padding:7px 11px;background:#eef3f0;color:#5d746c}.pill.good{color:#146c59;background:#dff1e8}.pill.warn{color:#895519;background:#fff0d4}.pill.bad{color:#9e4040;background:#fde9e5}.row{display:flex;align-items:center;justify-content:space-between;gap:8px}.row h2{margin:0}.reading{margin:16px 0 0;display:flex;align-items:baseline;gap:16px}#bpm{font-size:94px;font-weight:600;letter-spacing:-5px;line-height:1.25;font-variant-numeric:tabular-nums}.unit{font-size:15px;color:#638078}#age{margin:5px 0 20px;color:#69837a}.divider{border-top:1px solid #e7eee9}canvas{width:100%;height:165px;display:block;margin-top:20px}footer{padding:0 10px;color:#6a8178}footer p{font-size:12px}.secondary{background:transparent;border:1px solid #bdd2c8;color:#41695c}#error{color:#a33838}#telegram{font-size:13px}[hidden]{display:none!important}@media(max-width:420px){.card{padding:22px}#bpm{font-size:80px}.row>.muted{font-size:11px}}