:root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;--text:#1d2433;--muted:#5d6677;--line:#dfe3ea;--bg:#f5f6f8;--card:#fff;--accent:#14315c;color:var(--text);font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;line-height:1.45}*{box-sizing:border-box}body{background:var(--bg);margin:0}#root{max-width:560px;margin:0 auto;padding:16px 16px 40px}h1,h2,h3{margin:1.2em 0 .4em;line-height:1.2}h1{margin-top:.6em;font-size:1.6rem}h2{font-size:1.3rem}h3{font-size:1.05rem}p{margin:.5em 0}a{color:var(--accent)}ul{padding-left:1.2em}label{margin:12px 0;font-weight:600;display:block}input{border:1px solid var(--line);width:100%;color:var(--text);background:#fff;border-radius:8px;margin-top:6px;padding:12px;font-size:1rem;display:block}button{font:inherit;background:var(--accent);color:#fff;cursor:pointer;border:0;border-radius:8px;padding:12px 16px}button:disabled{opacity:.6;cursor:default}button.secondary{color:var(--accent);border:1px solid var(--accent);background:0 0}button.small{padding:6px 12px}button.link{color:var(--accent);background:0 0;padding:8px 0;text-decoration:underline}.muted{color:var(--muted)}.topbar{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;padding-bottom:8px;display:flex}.footer{margin-top:32px;font-size:.9rem}.card{background:var(--card);border:1px solid var(--line);border-radius:12px;margin:10px 0;padding:14px}.session-list,.exercise-list{margin:0;padding:0;list-style:none}.session-card{text-align:left;width:100%;color:var(--text);align-items:center;gap:14px;display:flex}.session-code{background:var(--accent);color:#fff;border-radius:50%;flex:none;place-items:center;width:40px;height:40px;font-weight:700;display:grid}.session-main{flex-direction:column;gap:2px;display:flex}.badge{color:var(--accent);background:#e7edf7;border-radius:999px;padding:2px 10px;font-size:.85rem;display:inline-block}.note{white-space:pre-line;background:#eef3fb;border-radius:8px;padding:10px 12px}.summary dt{margin-top:12px;font-weight:600}.summary dd{margin:2px 0 0}.sets{margin:4px 0 10px;font-weight:600}.video{aspect-ratio:16/9;background:#000;border-radius:8px;position:relative;overflow:hidden}.video iframe,.video img{object-fit:cover;border:0;width:100%;height:100%;position:absolute;inset:0}.video-thumb{width:100%;padding:0;display:block}.video-empty{aspect-ratio:16/6;color:var(--muted);background:#eceff4;justify-content:center;align-items:center;display:flex}.play{color:#fff;background:#000000a6;border-radius:50%;place-items:center;width:56px;height:56px;font-size:1.4rem;display:grid;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)}