@font-face{font-family:Archivo;src:url('./archivo-latin.woff2') format('woff2');font-weight:100 900;font-style:normal;font-display:swap}
:root{font-family:Archivo,Arial,sans-serif;color:#25383b;background:#faf9f6;font-synthesis:none;--tinta:#25383b;--suave:#59676a;--enlace:#176475;--linea:#d9deda}
*{box-sizing:border-box}
body{margin:0;font-size:18px;line-height:1.55}
a{color:var(--enlace);text-decoration-thickness:1px;text-underline-offset:3px}
a:hover{text-decoration-thickness:2px}
a:focus-visible,button:focus-visible{outline:2px solid var(--enlace);outline-offset:5px}
summary:focus-visible{outline:2px solid var(--enlace);outline-offset:5px}
button{font:inherit;color:var(--enlace);cursor:pointer}
[hidden]{display:none!important}
.cabecera{border-bottom:1px solid var(--linea)}
.cabecera nav{max-width:1008px;margin:0 auto;padding:20px 24px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.marca{font-size:17px;font-weight:500;color:var(--tinta);text-decoration:none}
.regreso{font-size:14px;white-space:nowrap}
.cabecera a{min-height:44px;display:inline-flex;align-items:center;gap:10px}
main,footer{width:calc(100% - 48px);max-width:880px;margin:0 auto}
.apertura{padding:64px 0 0}
.fecha{font-size:13px;color:var(--suave);margin:0 0 18px;letter-spacing:.015em}
h1{font-size:42px;font-weight:500;line-height:1.12;letter-spacing:-1.2px;margin:0 0 27px}
h2{font-size:25px;font-weight:500;letter-spacing:-.45px;line-height:1.25;margin:0 0 18px;scroll-margin-top:30px}
h3{font-size:21px;font-weight:500;letter-spacing:-.25px;line-height:1.3;margin:0 0 6px}
p{margin:0 0 28px;max-width:760px}
.entrada{max-width:735px;font-size:19px;line-height:1.6;margin-bottom:12px}
.movimiento,.pie-animacion button{padding:8px 0;min-height:44px;border:0;background:transparent;text-decoration:underline;text-underline-offset:3px;font-size:13px}
.control-movimiento{min-height:44px;display:flex;align-items:flex-start}
section{margin-top:72px;padding-top:28px;border-top:1px solid var(--linea)}
.etapa{font-size:12px;letter-spacing:.025em;color:var(--suave);margin:0 0 20px}
.indice{display:grid;grid-template-columns:1fr 1fr;column-gap:40px;margin-top:28px;max-width:760px}
.indice a{display:flex;align-items:baseline;gap:14px;padding:10px 0;font-size:15px;min-height:44px;text-decoration:none}
.indice a:hover{text-decoration:underline}.indice span{color:var(--suave);font-size:12px;font-variant-numeric:tabular-nums}
.fuentes{margin:32px 0;font-size:16px;max-width:840px}
.fuentes>div{display:grid;grid-template-columns:190px minmax(0,1fr);gap:24px;border-bottom:1px solid var(--linea);padding:20px 0}
.fuentes>div:first-child{border-top:1px solid var(--linea)}
.fuentes dt{font-weight:500}.fuentes dd{margin:0}
.pasos{list-style:none;padding:0;margin:34px 0;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:22px}
.pasos li{position:relative;border-top:2px solid #8fa7a8;padding:12px 4px 0 0}
.pasos li:not(:last-child)::after{content:'→';position:absolute;right:-19px;top:31px;color:var(--suave)}
.pasos span,.pasos small,.pasos b{display:block}.pasos span{font-size:12px;color:var(--suave);margin-bottom:6px}.pasos b{font-size:15px;font-weight:500}.pasos small{font-size:12px;line-height:1.5;margin-top:5px;color:var(--suave)}
figure{margin:27px 0 0}
figure img{display:block;max-width:100%;height:auto;width:100%}
figcaption,.nota{font-size:13px;line-height:1.5;color:var(--suave);margin:12px 0 0;max-width:760px}
figcaption b{font-weight:500;color:var(--tinta)}
figure+p{margin-top:28px}
.nota+p{margin-top:28px}
.demostracion>img,.pareja img{background:#edf1ed}
.pie-animacion{display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;padding-top:4px;font-size:13px;color:var(--suave)}
.pie-animacion+figcaption{margin-top:2px}
.mapa-estructura{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:36px;margin:32px 0}
.mapa-estructura figure{margin:0}.lectura-mapa{padding-top:28px}.lectura-mapa h3{margin-bottom:20px}.lectura-mapa p{font-size:16px}
.panorama-cilindro{position:relative;background:#edf1ed}.cota{position:absolute;top:var(--cota);left:3%;transform:translateY(-50%);font-size:12px;color:#42595b;font-variant-numeric:tabular-nums}
.sentido-descenso{position:absolute;right:5%;top:36%;writing-mode:vertical-rl;font-size:12px;color:#42595b}
.subtema{margin:40px 0 18px}.perfil-geografico{margin:26px 0}.perfil-geografico img{background:transparent}
.expedicion-foto{margin:38px 0;scroll-margin-top:24px}.expedicion-foto h3{margin-bottom:16px}.expedicion-foto figcaption p{margin:0 0 8px}.expedicion-foto img{background:#142125}
.pareja{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:22px}
.pareja figure{margin:0}
.historia-relieve+p{margin-top:28px}
.agua-vistas{margin-top:28px}.agua-vistas+.nota{margin-bottom:28px}
.especies-indice{display:flex;gap:0 22px;flex-wrap:wrap;font-size:14px;margin:26px 0 32px}.especies-indice a{padding:10px 0;min-height:44px}
.caso{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.05fr);align-items:start;gap:30px;padding:32px 0;border-top:1px solid var(--linea);scroll-margin-top:24px}
.caso figure{margin:0}.caso img{background:#edf1ed}.caso p{font-size:16px;line-height:1.55;margin:0 0 17px}.caso .taxon{font-size:13px;color:var(--suave);margin:7px 0 20px}.referencia{display:inline-block;min-height:44px;padding:10px 0;font-size:13px}
.caso figcaption{font-size:12px}.caso .pie-animacion{gap:2px 12px;font-size:12px}.caso .pie-animacion button{font-size:12px}
.caso-abierto{display:block}.caso-abierto p{font-size:18px;max-width:760px}.caso-abierto .pareja{margin:24px 0}.caso-abierto .nota{font-size:13px;margin:12px 0 24px}.caso-abierto .taxon{font-size:13px}
.secuencia{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;margin:8px 0 0}.secuencia figure{margin:0}.credito-secuencia{margin:18px 0}
.revision{font-size:14px;margin:0 0 32px}.revision summary{cursor:pointer;color:var(--enlace);min-height:44px;padding:10px 0;text-decoration:underline;text-underline-offset:3px}.revision figure{margin-top:14px}
footer{margin-top:70px;padding:28px 0 30px;border-top:1px solid var(--linea);font-size:14px;color:var(--suave)}
footer p{margin:0 0 12px}
.cierre{margin-top:35px;display:flex;align-items:center;justify-content:space-between;gap:20px;font-size:13px}
.cierre a{display:inline-flex;align-items:center;min-height:44px;gap:10px}
.saltar{position:absolute;top:-100px;left:24px;padding:10px 16px;background:#faf9f6;z-index:2}
.saltar:focus{top:12px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
@media(max-width:600px){
 .cabecera nav{padding:12px 24px;gap:14px}.marca{font-size:15px}.regreso{font-size:12px}
 .apertura{padding-top:40px}h1{font-size:36px;letter-spacing:-.8px}h2{font-size:24px}.entrada{font-size:18px}
 section{margin-top:52px;padding-top:24px}figure{margin-top:22px}.fecha{font-size:12px}
 .indice{column-gap:18px}.indice a{font-size:13px;gap:8px}.indice span{font-size:11px}
 .fuentes>div{grid-template-columns:1fr;gap:10px;padding:18px 0}
 .pasos{grid-template-columns:1fr 1fr;gap:28px 24px}.pasos li:nth-child(2)::after{content:none}
 .caso{grid-template-columns:1fr;gap:22px;padding:28px 0}.caso h3{font-size:22px}.caso .taxon{margin-bottom:16px}.caso figure{max-width:440px;width:100%}.caso p{font-size:17px}.caso .referencia{font-size:14px}
 .especies-indice{gap:0 20px;margin-bottom:24px}.etapa{margin-bottom:16px}
 .pareja,.secuencia,.mapa-estructura{grid-template-columns:1fr;gap:24px}.lectura-mapa{padding-top:0}.lectura-mapa p{font-size:17px}.mapa-estructura figure{max-width:440px}
 .caso-abierto .pareja figure{max-width:none}.caso-abierto p{font-size:17px}
 .pie-animacion{font-size:12px;gap:10px}.pie-animacion button{font-size:12px;flex-shrink:0}
 footer{margin-top:48px}.cierre{align-items:flex-start;gap:12px;flex-direction:column}
}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
@media print{.cabecera,.movimiento,.pie-animacion button,.saltar,.indice{display:none}body{background:white;color:black}main,footer{width:100%}figure,.caso,.fuentes>div{break-inside:avoid}.apertura{padding-top:0}a{color:inherit}}