.library-entry{padding-bottom:96px;background:linear-gradient(180deg,#f3faf7 0,#fff 430px)}
.library-breadcrumbs{padding-top:24px}.library-entry__header{max-width:980px;padding-top:54px;padding-bottom:50px}
.library-entry__identity{display:flex;align-items:center;gap:13px;margin-bottom:24px}.library-entry__identity>span{display:grid;width:46px;height:46px;place-items:center;border-radius:50%;background:var(--green);color:#fff;font:700 1.45rem "Source Serif 4", Georgia,serif}.library-entry__identity p,.library-label{margin:0;color:var(--coral);font-size:1rem;font-weight:850;letter-spacing:.07em;text-transform:uppercase}
.library-entry__header h1{max-width:880px;margin:0;font-size:clamp(3.2rem,6vw,5.4rem);font-weight:600;line-height:.98;letter-spacing:-.04em}.library-entry__lead{max-width:780px;margin:27px 0 30px;color:#405652;font:1.3rem/1.55 "Source Serif 4", Georgia,"Times New Roman",serif}.library-entry__meta{display:flex;gap:42px;margin:0;padding-top:22px;border-top:1px solid var(--line)}.library-entry__meta div{display:grid;gap:2px}.library-entry__meta dt{color:var(--muted);font-size:.875rem;font-weight:850;text-transform:uppercase}.library-entry__meta dd{margin:0;font-size:.875rem;font-weight:730}
.library-entry__layout{display:grid;grid-template-columns:220px minmax(0,760px);gap:80px;justify-content:center;align-items:start}.library-entry__nav{position:sticky;top:112px;display:grid;gap:0;border-left:2px solid var(--mint-2)}.library-entry__nav strong{padding:0 0 11px 18px;font-size:.875rem}.library-entry__nav a{padding:8px 0 8px 18px;color:var(--muted);font-size:.875rem;text-decoration:none}.library-entry__nav a:hover,.library-entry__nav a:focus-visible{color:var(--green);background:linear-gradient(90deg,var(--mint),transparent)}
.library-entry__content>section{scroll-margin-top:110px;padding:44px 0;border-bottom:1px solid var(--line)}.library-entry__content>section:first-child{padding-top:34px}.library-entry__content h2{margin:8px 0 18px;font-size:2.15rem;line-height:1.14}.library-entry__content p{margin:0 0 19px;color:#425653;font-size:1rem}.definition-card{padding:34px!important;border:1px solid #bad9d1!important;border-top:5px solid var(--green)!important;border-radius:10px;background:#f1f8f6}.definition-card h2{font-size:2.35rem}.definition-card p:last-child{margin-bottom:0}
.library-visual img,.library-entry__content>figure img{display:block;width:100%;max-width:100%;height:auto;aspect-ratio:auto;object-fit:contain}
.talk-test{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:28px}.talk-test>div{position:relative;min-height:210px;padding:22px;border:1px solid var(--line);border-radius:9px;background:var(--surface)}.talk-test>div>span{display:grid;width:30px;height:30px;place-items:center;margin-bottom:32px;border-radius:50%;background:#dce7e3;color:var(--green-dark);font-size:.875rem;font-weight:900}.talk-test strong{display:block;font:700 1.08rem/1.25 "Source Serif 4", Georgia,serif}.talk-test p{margin:10px 0 0;font-size:1rem;line-height:1.5}.talk-test .is-moderate{border-color:#83bcb0;background:var(--mint);box-shadow:0 14px 32px rgba(18,58,51,.08)}.talk-test .is-moderate>span{background:var(--green);color:#fff}
.effort-scale{display:grid;grid-template-columns:4fr 2fr 3fr;min-height:96px;margin:25px 0 17px;overflow:hidden;border-radius:9px;background:#e8efec}.effort-scale>div{display:flex;align-items:end;justify-content:space-between;gap:12px;padding:18px}.effort-scale strong{font:700 1.7rem "Source Serif 4", Georgia,serif}.effort-scale span{font-size:.875rem;font-weight:800}.effort-scale__moderate{background:#cfe9df;color:var(--green-dark)}.effort-scale__vigorous{background:#f7ded7;color:#783f32}.library-note{padding-left:16px;border-left:3px solid var(--gold);font-size:.875rem!important}
.library-checklist{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:26px 0 0;padding:0;list-style:none}.library-checklist li{position:relative;padding:16px 16px 16px 42px;border-radius:7px;background:var(--surface);color:#425653;font-size:1rem}.library-checklist li:before{content:"✓";position:absolute;left:17px;color:var(--green);font-weight:900}.library-caution{margin-top:42px;padding:30px!important;border:1px solid #e9c8bf!important;border-left:5px solid var(--coral)!important;border-radius:10px;background:#fff8f6}.library-caution h2{font-size:1.85rem}.library-caution p:last-child{margin-bottom:0}
.library-error-list{display:grid;gap:13px;margin:24px 0 0;padding:0;list-style:none}.library-error-list li{padding:16px 18px;border-top:1px solid #ecd6d0;color:#425653;font-size:1rem}.library-error-list li:first-child{border-top:0}.library-error-list strong{color:var(--ink)}
.load-flow{display:grid;grid-template-columns:1fr auto 1fr;gap:18px;align-items:center;margin:28px 0}.load-flow>div{min-height:210px;padding:24px;border:1px solid #bad9d1;border-radius:10px;background:#f7fbfa}.load-flow>div>span{display:grid;width:32px;height:32px;place-items:center;margin-bottom:28px;border-radius:50%;background:var(--green);color:#fff;font-weight:900}.load-flow small{display:block;color:var(--coral-text);font-size:.875rem;font-weight:850;text-transform:uppercase}.load-flow strong{display:block;margin-top:6px;font:700 1.35rem "Source Serif 4", Georgia,serif}.load-flow p{margin:10px 0 0!important;font-size:1rem!important}.load-flow>b{color:var(--green);font-size:1.8rem}
.load-dimensions{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:26px 0}.load-dimensions article{padding:22px;border:1px solid var(--line);border-top:4px solid var(--green);border-radius:9px;background:#fff}.load-dimensions span{display:grid;width:34px;height:34px;place-items:center;border-radius:50%;background:var(--mint);color:var(--green-dark);font-weight:900}.load-dimensions h3{margin:18px 0 8px;font-size:1.25rem}.load-dimensions p{margin:0!important;font-size:1rem!important}.load-decisions{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:24px 0}.load-decisions article{padding:22px;border-radius:9px;background:var(--mint)}.load-decisions article:last-child{background:#fff3ef}.load-decisions strong{font:700 1.15rem "Source Serif 4", Georgia,serif}.load-decisions p{margin:8px 0 0!important;font-size:1rem!important}
.library-connections>div{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:25px}.library-connections a{display:grid;min-height:220px;padding:20px;border:1px solid var(--line);border-radius:8px;background:#fff;color:var(--ink);text-decoration:none}.library-connections a:hover,.library-connections a:focus-visible{border-color:#8dbeb3;box-shadow:0 12px 28px rgba(18,58,51,.08)}.library-connections small{color:var(--coral);font-size:.875rem;font-weight:850;text-transform:uppercase}.library-connections strong{margin:8px 0;font:700 1.05rem/1.3 "Source Serif 4", Georgia,serif}.library-connections span{color:var(--muted);font-size:.875rem}.library-connections b{align-self:end;color:var(--green);font-size:.875rem}.library-sources ol{margin:22px 0 0;padding:0;list-style:none}.library-sources li{display:grid;gap:2px;padding:15px 0;border-top:1px solid var(--line)}.library-sources li span{color:var(--muted);font-size:1rem;font-weight:800;text-transform:uppercase}.library-sources li a{color:var(--green-dark);font-weight:720;text-underline-offset:3px}
@media(max-width:900px){.library-entry__layout{grid-template-columns:1fr;gap:30px}.library-entry__nav{position:static;grid-template-columns:repeat(3,1fr);padding:16px 0;border:solid var(--line);border-width:1px 0}.library-entry__nav strong{grid-column:1/-1}.library-entry__nav a{padding:7px 12px}.talk-test,.load-dimensions{grid-template-columns:1fr}.talk-test>div,.load-flow>div{min-height:auto}.talk-test>div>span,.load-flow>div>span{margin-bottom:18px}.library-connections>div{grid-template-columns:1fr}.library-connections a{min-height:auto}}
@media(max-width:720px){.library-entry{padding-bottom:65px}.library-breadcrumbs{padding-top:16px}.library-entry__header{padding-top:35px;padding-bottom:34px}.library-entry__identity{margin-bottom:18px}.library-entry__identity>span{width:40px;height:40px}.library-entry__header h1{font-size:clamp(2.55rem,13vw,3.6rem)}.library-entry__lead{font-size:1.08rem}.library-entry__meta{display:grid;grid-template-columns:1fr 1fr;gap:15px}.library-entry__nav{grid-template-columns:1fr 1fr}.library-entry__content>section{padding:34px 0}.library-entry__content h2{font-size:1.75rem}.definition-card{padding:24px!important}.definition-card h2{font-size:1.9rem}.effort-scale{grid-template-columns:1fr}.effort-scale>div{align-items:center}.library-checklist,.load-decisions{grid-template-columns:1fr}.load-flow{grid-template-columns:1fr}.load-flow>b{transform:rotate(90deg);justify-self:center}.library-caution{padding:23px!important}}

.library-index-page{min-height:70vh}.library-index-list{max-width:980px;padding-bottom:90px}.library-index-list h2{margin:8px 0 26px;font-size:2.15rem}.library-index-list>a{display:grid;grid-template-columns:auto 1fr auto;gap:18px;align-items:center;padding:24px;border:1px solid #bad9d1;border-radius:10px;background:#fff;color:var(--ink);text-decoration:none;box-shadow:0 12px 32px rgba(18,58,51,.06)}.library-index-list>a>span{display:grid;width:42px;height:42px;place-items:center;border-radius:50%;background:var(--green);color:#fff;font:700 1.2rem "Source Serif 4", Georgia,serif}.library-index-list>a>div{display:grid;gap:4px}.library-index-list>a strong{font:700 1.15rem "Source Serif 4", Georgia,serif}.library-index-list>a small{color:var(--muted)}.library-index-list>a b{color:var(--green-dark);font-size:.875rem}@media(max-width:720px){.library-index-list>a{grid-template-columns:auto 1fr}.library-index-list>a b{grid-column:2}.library-index-list{padding-bottom:60px}}

/* Auditoría de legibilidad y navegación de Biblioteca */
.library-entry__identity p,.library-label,.library-connections small,.library-sources li span{color:var(--coral-text);font-size:1rem}
.library-entry__meta dt,.library-entry__meta dd,.library-entry__nav strong,.library-entry__nav a{font-size:.875rem}
.library-entry__nav a{display:flex;min-height:44px;align-items:center}
.talk-test p,.library-checklist li,.library-error-list li,.library-note{font-size:1rem!important;line-height:1.6}
.library-connections small,.library-connections span,.library-connections b,.library-sources li span,.library-index-list>a small,.library-index-list>a b{font-size:1rem;line-height:1.5}
.library-connections b,.library-index-list>a b{display:inline-flex;min-height:44px;align-items:center}
@media(max-width:720px){.library-entry__meta{grid-template-columns:1fr}.library-entry__nav a{padding-block:10px}}

/* Ficha: cadencia al caminar */
.cadence-formula{display:grid;grid-template-columns:1fr auto 1fr;gap:18px;align-items:center;margin:28px 0;padding:25px;border:1px solid #bad9d1;border-radius:10px;background:#f7fbfa}.cadence-formula>div{display:grid;gap:6px}.cadence-formula small{color:var(--coral-text);font-size:.875rem;font-weight:850;text-transform:uppercase}.cadence-formula strong{font:700 1.45rem/1.25 "Source Serif 4", Georgia,serif}.cadence-formula span{color:var(--muted);font-size:.88rem}.cadence-formula>b{color:var(--green);font-size:1.8rem}.cadence-reference{display:grid;grid-template-columns:150px 1fr;gap:26px;align-items:center;margin:28px 0;padding:28px;border:1px solid #bad9d1;border-radius:10px;background:var(--mint)}.cadence-reference>strong{font:700 3.1rem/.95 "Source Serif 4", Georgia,serif;text-align:center}.cadence-reference>strong span{display:block;margin-top:8px;font:800 .875rem/1.2 Arial,sans-serif;letter-spacing:.06em;text-transform:uppercase}.cadence-reference p{margin:0!important}.cadence-reference p+p{margin-top:10px!important}.cadence-reference em{color:var(--coral-text);font-style:normal;font-weight:850}.cadence-context{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:26px 0}.cadence-context article{padding:20px;border-radius:9px;background:var(--surface)}.cadence-context strong{display:block;margin-bottom:7px;font:700 1.05rem "Source Serif 4", Georgia,serif}.cadence-context p{margin:0!important;font-size:1rem!important}
@media(max-width:900px){.cadence-context{grid-template-columns:1fr}}
@media(max-width:720px){.cadence-formula{grid-template-columns:1fr}.cadence-formula>b{transform:rotate(90deg);justify-self:center}.cadence-reference{grid-template-columns:1fr;padding:23px}.cadence-reference>strong{text-align:left}}

/* Ficha: sedentarismo */
.sedentary-differences{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:26px 0}.sedentary-differences article{padding:22px;border:1px solid var(--line);border-top:4px solid var(--green);border-radius:9px;background:#fff}.sedentary-differences span{display:grid;width:34px;height:34px;place-items:center;border-radius:50%;background:var(--mint);color:var(--green-dark);font-weight:900}.sedentary-differences h3{margin:18px 0 8px;font-size:1.25rem}.sedentary-differences p{margin:0!important;font-size:1rem!important}
.sedentary-matrix{display:grid;grid-template-columns:170px repeat(2,1fr);gap:8px;margin:28px 0}.sedentary-matrix__column,.sedentary-matrix__row{display:flex;align-items:center;padding:14px;color:var(--green-dark);font-size:.875rem;font-weight:850;line-height:1.35;text-transform:uppercase}.sedentary-matrix__column{justify-content:center;border-bottom:2px solid var(--green);text-align:center}.sedentary-matrix__row{border-right:2px solid var(--green)}.sedentary-matrix article{min-height:155px;padding:20px;border:1px solid var(--line);border-radius:8px;background:#f7fbfa}.sedentary-matrix article.is-favourable{border-color:#83bcb0;background:var(--mint)}.sedentary-matrix article.is-alert{border-color:#e9c8bf;background:#fff3ef}.sedentary-matrix article strong{display:block;font:700 1.08rem/1.3 "Source Serif 4", Georgia,serif}.sedentary-matrix article p{margin:10px 0 0!important;font-size:1rem!important;line-height:1.5}
.sedentary-actions{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:26px 0}.sedentary-actions article{padding:20px;border-radius:9px;background:var(--surface)}.sedentary-actions strong{display:block;margin-bottom:7px;font:700 1.05rem "Source Serif 4", Georgia,serif}.sedentary-actions p{margin:0!important;font-size:1rem!important}
@media(max-width:900px){.sedentary-differences{grid-template-columns:1fr}}
@media(max-width:720px){.sedentary-matrix{grid-template-columns:1fr;gap:10px}.sedentary-matrix__corner{display:none}.sedentary-matrix__column{display:none}.sedentary-matrix__row{margin-top:8px;padding:12px 0 4px;border:0;border-bottom:2px solid var(--green)}.sedentary-matrix article{min-height:auto}.sedentary-actions{grid-template-columns:1fr}}

/* Ficha: fricción, cizalla y ampollas */
.friction-concepts{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:26px 0}.friction-concepts article{padding:22px;border:1px solid var(--line);border-top:4px solid var(--green);border-radius:9px;background:#fff}.friction-concepts span{display:grid;width:36px;height:36px;place-items:center;border-radius:50%;background:var(--mint);color:var(--green-dark);font-size:1.1rem;font-weight:900}.friction-concepts h3{margin:18px 0 8px;font-size:1.25rem}.friction-concepts p{margin:0!important;font-size:1rem!important}
.friction-diagram{margin:28px 0}.friction-diagram svg{display:block;width:100%;height:auto;border-radius:12px;box-shadow:0 16px 36px rgba(18,58,51,.08)}.friction-diagram figcaption{margin-top:13px;color:var(--muted);font-size:.9rem;line-height:1.55}
.friction-factors{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:26px 0}.friction-factors article{padding:20px;border-radius:9px;background:var(--surface)}.friction-factors strong{display:block;margin-bottom:7px;font:700 1.05rem "Source Serif 4", Georgia,serif}.friction-factors p{margin:0!important;font-size:1rem!important}.library-connections--four>div{grid-template-columns:repeat(2,1fr)}
@media(max-width:720px){.friction-concepts,.friction-factors,.library-connections--four>div{grid-template-columns:1fr}.friction-diagram{margin-inline:-8px}.friction-diagram figcaption{padding-inline:8px;font-size:.875rem}}