.library-heading { margin: 0 0 26px; }
.library-heading h1 { font-size: 30px; font-weight: 500; letter-spacing: -.8px; }
.library-heading p { margin-top: 9px; color: var(--muted); font-size: 14px; line-height: 1.5; }
.library-layout { display: grid; grid-template-columns: 310px minmax(0, 1fr); gap: 64px; align-items: start; }
.library-anatomy { position: sticky; top: 92px; }
.library-view-control { display: grid; grid-template-columns: 1fr 1fr; border-bottom: 1px solid var(--line); }
.library-view-control button { min-height: 46px; border: 0; border-bottom: 2px solid transparent; background: none; color: var(--muted); font-size: 14px; }
.library-view-control button[aria-pressed="true"] { border-bottom-color: var(--accent); color: var(--accent); }
.library-map { display: flex; align-items: center; justify-content: center; padding: 18px 0 8px; }
.library-map .muscle-map { display: block; width: auto; height: 420px; max-width: 100%; }
.library-muscle-label { display: block; font-size: 12px; color: var(--muted); margin-bottom: 7px; }
.library-muscle-select { width: 100%; min-height: 46px; font-size: 16px; }
.library-browser { min-width: 0; }
.library-search { display: flex; align-items: center; gap: 12px; border-bottom: 1px solid var(--line); min-height: 48px; padding: 8px 0; margin-bottom: 24px; }
.library-search svg { width: 20px; height: 20px; color: var(--muted); flex-shrink: 0; }
.library-search input { width: 100%; min-width: 0; height: 36px; border: 0; background: none; outline: none; font: inherit; font-size: 16px; color: var(--ink); }
.library-search:focus-within { border-bottom-color: var(--accent); }
#library-results { scroll-margin-top: 90px; outline: none; }
.library-results-heading { display: flex; align-items: baseline; gap: 12px; margin-bottom: 10px; }
.library-results-heading h2 { font-size: 19px; font-weight: 500; }
.library-results-heading>span { color: var(--muted); font-size: 13px; font-variant-numeric: tabular-nums; }
.exercise-library-card { display: flex; align-items: center; gap: 18px; min-height: 112px; padding: 16px 0; border-bottom: 1px solid var(--line); color: var(--ink); text-decoration: none; }
.exercise-library-card:hover .library-card-copy strong { color: var(--accent); }
.library-card-image { position: relative; width: 112px; height: 84px; flex-shrink: 0; display: grid; place-items: center; overflow: hidden; border-radius: 6px; background: #f0f2f5; }
.library-card-image>img { width: 100%; height: 100%; object-fit: contain; }
.library-card-image>svg { width: 28px; height: 28px; color: var(--muted); }
.library-card-play { position: absolute; right: 5px; bottom: 5px; background: white; border: 1px solid var(--line); border-radius: 50%; width: 23px; height: 23px; display: grid; place-items: center; }
.library-card-play svg { width: 12px; height: 12px; }
.library-card-copy { min-width: 0; flex: 1; }
.library-card-copy strong { display: block; font-size: 15px; line-height: 1.5; font-weight: 500; overflow-wrap: anywhere; }
.library-card-copy small { display: block; font-size: 12px; line-height: 1.5; margin-top: 6px; color: var(--muted); }
.exercise-library-card>svg { width: 17px; height: 17px; color: var(--muted); flex-shrink: 0; }
.library-empty { padding: 35px 0; color: var(--muted); font-size: 14px; }
.library-empty p { margin-bottom: 12px; }
.library-back { min-height: 44px; display: inline-flex; align-items: center; gap: 7px; margin-bottom: 25px; }
.exercise-guide { max-width: 1000px; margin: 0 auto; }
.exercise-guide-heading { margin-bottom: 26px; }
.exercise-guide-heading>p { font-size: 13px; color: var(--muted); margin-bottom: 9px; }
.exercise-guide-heading h1 { font-size: 32px; line-height: 1.22; font-weight: 500; letter-spacing: -.7px; max-width: 760px; }
.exercise-muscles { margin-top: 14px; color: var(--muted); font-size: 13px; line-height: 1.6; display: flex; gap: 7px; flex-wrap: wrap; align-items: center; }
.exercise-muscles a { color: var(--muted); text-underline-offset: 4px; display: inline-flex; align-items: center; min-height: 30px; }
.exercise-guide-layout { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr); gap: 46px; align-items: start; }
.exercise-demo { background: #eef0f3; border: 1px solid var(--line); border-radius: 9px; overflow: hidden; width: 100%; aspect-ratio: 4/3; }
.exercise-demo.portrait { aspect-ratio: 9/16; max-height: 560px; }
.exercise-demo-start { position: relative; background: #eef0f3; border: 0; width: 100%; height: 100%; display: grid; place-items: center; padding: 0; }
.exercise-demo-start>img { width: 100%; height: 100%; object-fit: contain; }
.exercise-demo-start>span { position: absolute; display: flex; align-items: center; justify-content: center; gap: 8px; bottom: 20px; left: 18px; right: 18px; min-height: 46px; padding: 10px 12px; background: white; color: var(--ink); border-radius: 6px; box-shadow: 0 1px 6px #00000016; font-size: 14px; }
.exercise-demo-start>span>svg { width: 18px; height: 18px; }
.exercise-demo iframe { border: 0; width: 100%; height: 100%; display: block; }
.exercise-video-source { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-top: 5px; color: var(--muted); font-size: 12px; }
.exercise-video-source>span { min-width: 0; overflow-wrap: anywhere; }
.exercise-video-source>a { min-height: 44px; flex-shrink: 0; display: inline-flex; align-items: center; gap: 5px; font-size: 12px; }
.exercise-video-source svg { width: 15px; height: 15px; }
.exercise-technique h2 { font-size: 18px; font-weight: 500; margin: 0 0 19px; }
.exercise-technique ol { list-style: none; counter-reset: technique; padding: 0; margin: 0; }
.exercise-technique li { counter-increment: technique; position: relative; padding-left: 35px; margin-bottom: 21px; font-size: 14px; line-height: 1.7; }
.exercise-technique li::before { content: counter(technique); position: absolute; left: 0; top: 2px; color: var(--muted); font-variant-numeric: tabular-nums; font-size: 12px; border: 1px solid var(--line); width: 22px; height: 22px; border-radius: 50%; display: grid; place-items: center; }
.exercise-technique-cue { border-left: 2px solid #cad5ed; padding-left: 14px; color: var(--muted); font-size: 13px; line-height: 1.7; margin-top: 27px; }
.exercise-original-link { border-top: 1px solid var(--line); display: flex; align-items: center; gap: 9px; width: 100%; min-height: 52px; margin-top: 28px; text-align: left; font-size: 13px; }
.exercise-original-link svg { width: 17px; height: 17px; flex-shrink: 0; }
.exercise-original-link svg:last-child { margin-left: auto; }
.library-video-unavailable { padding: 30px; font-size: 14px; color: var(--muted); }
@media(max-width: 1000px) { .library-layout { gap: 38px; grid-template-columns: 270px minmax(0, 1fr); } .exercise-guide-layout { gap: 28px; } }
@media(max-width: 759px) {
  .library-heading { margin-bottom: 18px; }
  .library-heading h1 { font-size: 27px; }
  .library-heading p { font-size: 13px; margin-top: 8px; }
  .library-layout { display: block; }
  .library-anatomy { position: static; max-width: 340px; margin: 0 auto 28px; }
  .library-map .muscle-map { height: 420px; }
  .library-map { padding-top: 13px; }
  .library-search { margin-bottom: 22px; }
  .library-card-image { width: 96px; height: 76px; }
  .exercise-library-card { gap: 14px; min-height: 105px; }
  .library-card-copy strong { font-size: 14px; }
  .library-results-heading h2 { font-size: 18px; }
  .exercise-guide-heading h1 { font-size: 27px; }
  .library-back { margin-bottom: 18px; }
  .exercise-guide-layout { display: block; }
  .exercise-demo { aspect-ratio: 4/3; }
  .exercise-demo.portrait { max-height: 430px; }
  .exercise-technique { margin-top: 28px; }
  .exercise-technique h2 { margin-bottom: 21px; }
  .exercise-muscles a { min-width: 44px; min-height: 44px; }
}
@media(max-width: 360px) { .library-map .muscle-map { height: 380px; } .library-card-image { width: 80px; height: 66px; } .exercise-library-card { gap: 11px; } .exercise-guide-heading h1 { font-size: 25px; } }