:root{color-scheme:light dark}
[hidden]{display:none!important}
button,a,summary{-webkit-tap-highlight-color:transparent}
button:focus-visible,a:focus-visible,summary:focus-visible,textarea:focus-visible{outline:3px solid var(--accent);outline-offset:3px}
button:disabled{opacity:.4;cursor:default}
.top{max-width:760px;padding-top:max(8px,env(safe-area-inset-top));flex-wrap:nowrap}
.seg button{min-height:44px;padding:0 12px}
.sticky{position:relative;z-index:3}
.rail{max-width:760px;padding:8px 16px}
.rail button{min-height:44px}
#overview{max-width:728px;margin:0 auto;padding:0 0 6px}
#overview summary{min-height:44px;display:flex;align-items:center;justify-content:center;color:var(--accent);cursor:pointer;font-size:14px;font-weight:600}
#overview[open]{padding-bottom:12px}
#jump{display:flex;flex-wrap:wrap;gap:6px;padding:0 16px}
#jump button{background:var(--card);border:1px solid var(--line);border-radius:8px;min-height:44px;padding:8px 12px;font-size:14px}
#jump button[aria-current=true]{background:var(--accent);color:var(--card)}
main{max-width:760px;padding:0 16px 100px}
#phase-line{margin:6px 0;font-size:12px;text-align:center}
.day{padding-top:0}
.day-head{display:block;background:none;border:0;padding:0;margin:0}
.day-head>div{display:none}
.day-head>.how{margin-bottom:6px}.day-head>.how summary{font-size:12px;min-height:36px}.day-head>.how[open]{padding:12px;background:var(--card);border-radius:12px}
#train .cards{display:flex;gap:16px;overflow-x:auto;scroll-snap-type:x mandatory;overscroll-behavior-x:contain;scrollbar-width:none;align-items:start;border-radius:0}
#train .cards::-webkit-scrollbar{display:none}
#train .ex{flex:0 0 100%;min-width:0;max-width:100%;scroll-snap-align:start;scroll-snap-stop:always;background:none;border:0;border-radius:0;padding:4px 0 12px;gap:10px}
.ex header{display:block}
.ex h3{font-size:clamp(24px,6vw,34px);line-height:1.15;letter-spacing:-.02em;overflow-wrap:anywhere}
.ex .tag{display:none}
.hero{margin:0;background:white;border-radius:12px;overflow:hidden;height:clamp(180px,26svh,310px);display:flex;align-items:center;justify-content:center}
.hero img{width:100%;height:100%;object-fit:contain}
.phases{font-size:15px;line-height:1.4}
.phases span{display:none}
.phases li{padding:0}
.track{border:0;padding:0;gap:6px}
.facts{font-size:14px;line-height:1.4;gap:6px}
.facts div{grid-template-columns:42px 1fr}
.saved-sets{display:flex;flex-wrap:wrap;gap:6px}
.saved-sets span{font-size:14px;font-weight:600;padding:5px 9px;border-radius:6px;background:var(--card);font-variant-numeric:tabular-nums}
.how summary,.warm-notes summary{min-height:44px}
.ex .how{border-top:1px solid var(--line)}
.ex .how .works{margin:8px 0}
.motion img{width:100%;height:auto;max-height:300px;object-fit:contain;background:white}
.exercise-controls{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:4px;padding-top:8px;border-top:1px solid var(--line)}
.exercise-controls button{min-height:44px;border:0;background:none;font-weight:600;color:var(--accent);padding:8px 12px}
#position{font-size:14px;color:var(--muted);font-variant-numeric:tabular-nums}
#quick{display:flex;align-items:center;gap:9px;min-height:52px;padding:0 18px;box-shadow:0 5px 18px #0002;bottom:calc(14px + env(safe-area-inset-bottom))}
body:not([data-view=train]) #quick{display:flex}
#quick[aria-expanded=true]{visibility:hidden}
#sheet{position:fixed;z-index:20;inset:auto 0 0 auto;width:min(100%,480px);height:min(76dvh,640px);padding:0 0 env(safe-area-inset-bottom);background:var(--card);border-radius:16px 16px 0 0;box-shadow:0 -8px 40px #0002;display:flex;flex-direction:column;overflow:hidden}
.chat-head{display:flex;gap:12px;align-items:center;justify-content:space-between;padding:16px;border-bottom:1px solid var(--line)}
.chat-head h2{font-size:18px;margin:0}
#chat-context{font-size:13px;color:var(--muted);margin:4px 0 0}
#q-close{min-height:44px;border:0;background:none;font-size:14px;padding:0 8px}
#messages{flex:1;min-height:0;overflow:auto;padding:16px;overscroll-behavior:contain;display:flex;flex-direction:column;gap:12px}
.message{max-width:92%;padding:10px 12px;border-radius:12px;font-size:15px;line-height:1.45;white-space:pre-wrap;overflow-wrap:anywhere}
.message.user{align-self:flex-end;background:var(--accent);color:var(--bg)}
.message.assistant{align-self:flex-start;background:var(--bg)}
.message small{display:block;font-size:11px;opacity:.85;margin-bottom:4px}
.chat-welcome{color:var(--muted);font-size:15px;line-height:1.5;margin:0}
#quickform{padding:12px 16px 8px;border-top:1px solid var(--line)}
#quickform label{display:block;font-size:12px;color:var(--muted);margin-bottom:5px}
#q-text{display:block;resize:none;width:100%;max-height:130px;min-height:64px;background:var(--bg);color:var(--ink);border:1px solid var(--line);border-radius:10px;font:16px/1.4 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;padding:10px}
#q-text::placeholder{color:var(--muted)}
.composer-actions{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:8px}
#connection{font-size:12px;color:var(--muted)}
#q-save,#retry{min-height:44px;border:0;border-radius:8px;background:var(--accent);color:var(--bg);font-weight:600;padding:0 18px}
#retry{margin:0 16px 12px;background:var(--bg);color:var(--accent)}
#status{z-index:25;pointer-events:none}
.entry-note{white-space:pre-wrap;font-size:14px;overflow-wrap:anywhere}
#log .session li{display:block}
#log .session li span{display:block;text-align:left}
@media(min-width:700px){#sheet{right:20px;bottom:20px;border-radius:16px}#quick{right:24px;bottom:24px}.hero{height:320px}.ex h3{font-size:32px}#train{max-width:580px;margin:auto}#overview{max-width:580px}}
@media(max-width:360px){.seg button{padding:0 8px}.top{gap:4px;padding-inline:10px}main{padding-inline:12px}.hero{height:24svh}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{scroll-behavior:auto!important}}

.demo-caption{font-size:12px;line-height:1.4;color:var(--muted);margin:0}.demo-caption:empty{display:none}.motion-toggle{align-self:flex-end;min-height:44px;padding:0 10px;font-size:12px;border:0;background:none;color:var(--accent);margin-top:-8px}.hero a{color:#0b5c56;padding:24px;font-size:18px}

.hero{position:relative}.hero .motion-toggle{position:absolute;right:8px;bottom:8px;background:#fff;color:#0b5c56;border-radius:8px;margin:0}

.workout-progress{margin:10px 0 12px}.workout-progress>div{display:flex;justify-content:space-between;gap:12px;font-size:12px;color:var(--muted);margin-bottom:6px;font-variant-numeric:tabular-nums}.workout-progress progress{display:block;width:100%;height:6px;border:0;border-radius:4px;overflow:hidden;background:var(--line);color:var(--accent);accent-color:var(--accent)}.workout-progress progress::-webkit-progress-bar{background:var(--line);border-radius:4px}.workout-progress progress::-webkit-progress-value{background:var(--accent);border-radius:4px}.workout-progress progress::-moz-progress-bar{background:var(--accent);border-radius:4px}