:root{--ink: #14161a;--muted: #6b7280;--line: #e5e7eb;--bg: #f7f7f8;--card: #fff;--accent: #1f4fd8;--ok: #0f7b3f;--err: #b42318}*{box-sizing:border-box}body{margin:0;font:16px/1.5 system-ui,-apple-system,Segoe UI,Roboto,sans-serif;color:var(--ink);background:var(--bg)}a{color:var(--accent)}h1{font-size:1.6rem;margin:0 0 .75rem}h2{font-size:1.1rem;margin:0 0 .5rem}.muted{color:var(--muted)}.error{color:var(--err)}.eyebrow{font-size:.75rem;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);margin:0}.center{min-height:100vh;display:grid;place-items:center;padding:1rem}.card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:1.25rem;display:block;margin:0 0 1rem}.narrow{width:100%;max-width:26rem;display:grid;gap:.75rem}.narrow form{display:grid;gap:.75rem}label{display:grid;gap:.25rem;font-size:.9rem}input:not([type=checkbox]):not([type=range]){padding:.7rem;font-size:1rem;border:1px solid var(--line);border-radius:8px;width:100%}button,.button{display:inline-block;text-align:center;padding:.65rem 1rem;font:inherit;border:1px solid var(--line);border-radius:8px;background:#fff;color:var(--ink);cursor:pointer;text-decoration:none}button.primary,.button.primary{background:var(--ink);border-color:var(--ink);color:#fff}button:disabled{opacity:.6;cursor:default}.quiet{border:0;background:none;color:var(--muted);font-size:.9rem;padding:.25rem;text-align:center}.top{display:flex;justify-content:space-between;align-items:center;padding:.75rem 1rem;background:#fff;border-bottom:1px solid var(--line)}.top nav{display:flex;gap:1rem}.brand{font-weight:700;color:var(--ink);text-decoration:none}.notice,.banner{display:flex;gap:.75rem;align-items:center;justify-content:center;flex-wrap:wrap;padding:.6rem 1rem;font-size:.9rem}.notice{background:#fff8e1;border-bottom:1px solid #f1e3a4}.banner{background:#eaf1ff;border-bottom:1px solid #c9d8fb}.shell{display:grid;grid-template-columns:minmax(0,1fr) 18rem;gap:1.5rem;max-width:64rem;margin:0 auto;padding:1.5rem 1rem}.page{max-width:44rem}.prose{margin:0 auto;padding:2rem 1rem}.coach{display:grid;gap:.5rem;position:sticky;top:1rem}.coach h2{margin:0}.booked{color:var(--ok);font-weight:600;margin:0}.module ul{list-style:none;padding:0;margin:0 0 1.5rem;background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden}.module li+li{border-top:1px solid var(--line)}.module li a{display:flex;justify-content:space-between;gap:1rem;padding:.8rem 1rem;color:var(--ink);text-decoration:none}.module li.done a span:last-child{color:var(--ok)}.next{display:grid;text-decoration:none;color:var(--ink);border-color:var(--ink)}.tag{font-size:.7rem;font-weight:600;border:1px solid var(--line);border-radius:999px;padding:.1rem .5rem;margin-left:.5rem;vertical-align:middle}.tag.ok{color:var(--ok);border-color:var(--ok)}.video{width:100%;aspect-ratio:16 / 9;background:#000;border-radius:12px;margin-bottom:1rem}.video.placeholder{background:#1c1f26;color:#fff;display:grid;place-content:center;gap:.75rem;padding:1rem;text-align:center}.video.placeholder input{width:min(28rem,70vw)}.video.placeholder .muted{color:#c7cbd3;margin:0}.row{display:flex;gap:.5rem;justify-content:center;flex-wrap:wrap}.checklist{list-style:none;padding:0}.checklist label{display:flex;gap:.5rem;align-items:center;font-size:1rem;padding:.3rem 0}.overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#00000080;display:grid;place-items:center;padding:1rem;z-index:10}.dialog{background:#fff;border-radius:12px;padding:1.5rem;max-width:30rem;width:100%}.dialog.wide{max-width:56rem;height:90vh;display:grid;grid-template-rows:auto 1fr;padding:.75rem;gap:.5rem}.dialog-head{display:flex;justify-content:space-between;align-items:center}.dialog iframe{width:100%;height:100%;border:0}.foot{text-align:center;padding:1.5rem;font-size:.85rem}@media (max-width: 800px){.shell{grid-template-columns:1fr}.coach{position:static}}