/* Estilos del sitio. Colores y tipografía: finedu-colores.css */
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:5rem}
body{margin:0;background:var(--color-bg);color:var(--color-text);font-family:var(--font-texto);font-size:1.0625rem;line-height:1.6}
h1,h2,h3{font-family:var(--font-titulos);font-weight:800;line-height:1.1;margin:0 0 .6em;letter-spacing:-.01em}
h1{font-size:clamp(2.2rem,5.5vw,3.8rem)}
h2{font-size:clamp(1.8rem,4vw,2.6rem)}
h3{font-size:1.35rem;font-weight:700}
p{margin:0 0 1em}
a{color:var(--color-link)}
a:hover{color:var(--color-link-hover)}
:focus-visible{outline:3px solid var(--color-focus);outline-offset:3px}
.wrap{max-width:1080px;margin:0 auto;padding:0 1.25rem}
section{padding:4.5rem 0}
.alt{background:var(--color-surface-alt)}
.etiqueta{font-size:.875rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--color-accent-text);margin-bottom:1rem}
.muted{color:var(--color-text-muted)}

/* Barra superior */
header{position:sticky;top:0;z-index:10;background:var(--color-bg);border-bottom:1px solid var(--color-border)}
header .wrap{display:flex;align-items:center;justify-content:space-between;gap:1rem;min-height:4rem;flex-wrap:wrap}
header img{height:56px;width:auto;display:block}
nav{display:flex;align-items:center;gap:.25rem;flex-wrap:wrap}
nav a{color:var(--color-text);text-decoration:none;font-weight:500;display:inline-flex;align-items:center;min-height:44px;padding:0 .75rem}
nav a:hover{color:var(--color-link)}
.acciones{display:flex;align-items:center;gap:.75rem;flex-wrap:wrap}
.menu-btn{display:none;min-height:44px;padding:0 1rem;border:1px solid var(--color-border);border-radius:8px;background:var(--color-surface);color:var(--color-text);font:inherit;font-weight:700;cursor:pointer}

/* Botones */
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:.8rem 1.4rem;border-radius:8px;font-weight:700;text-decoration:none;border:2px solid transparent}
.btn-cobre{background:var(--color-accent);color:var(--color-on-accent)}
.btn-cobre:hover{background:var(--color-accent-hover);color:var(--color-on-accent)}
.btn-azul{background:var(--color-interactive);color:var(--color-on-primary)}
.btn-azul:hover{background:var(--color-link-hover);color:var(--color-on-primary)}
header .btn{padding:.5rem 1.1rem}
header nav a.btn{color:var(--color-on-accent)}
.botones{display:flex;gap:.8rem;flex-wrap:wrap;margin:1.5rem 0}

/* Inicio */
#inicio{padding:5.5rem 0 4rem}
#inicio .bajada{font-size:1.25rem;max-width:36rem}
.destacado{margin-top:2.5rem;padding:1.4rem 1.6rem;background:var(--color-surface);border:1px solid var(--color-border);border-left:6px solid var(--color-primary);border-radius:8px;max-width:40rem}
.destacado strong{display:block;font-family:var(--font-titulos);margin-bottom:.3rem}

/* Tarjetas */
.grid{display:grid;gap:1.25rem}
.g3{grid-template-columns:1fr}
.g5{grid-template-columns:repeat(2,1fr)}
.card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:12px;padding:1.5rem}
.card .num{font-weight:700;color:var(--color-primary)}
.card h3{margin-top:.4rem}
.pregunta{font-family:var(--font-titulos);font-weight:700;color:var(--color-primary);font-size:1.15rem;line-height:1.3}
.estado{float:right;font-size:.875rem;font-weight:700;padding:.25rem .7rem;border-radius:99px;background:var(--color-surface-data);color:var(--color-primary)}
.chips{display:flex;flex-wrap:wrap;gap:.4rem;padding:0;margin:.4rem 0 1rem;list-style:none}
.chips li{border:1px solid var(--color-border);border-radius:99px;padding:.15rem .75rem;font-size:.9rem}
.card h4{font-size:.875rem;text-transform:uppercase;letter-spacing:.06em;color:var(--color-text-muted);margin:1rem 0 .2rem}

/* Quiénes somos */
.dos{display:grid;gap:3rem;grid-template-columns:repeat(auto-fit,minmax(300px,1fr))}
.principios{list-style:none;padding:0;margin:0}
.principios li{padding:.55rem 0 .55rem 1.2rem;border-bottom:1px solid var(--color-border);position:relative}
.principios li::before{content:"";position:absolute;left:0;top:1.05rem;width:.55rem;height:.55rem;background:var(--color-primary)}
.equipo .foto{aspect-ratio:4/5;border-radius:8px;background:var(--color-surface-data);display:grid;place-items:center;color:var(--color-text-muted);font-size:.85rem;text-align:center;padding:.5rem}
.equipo strong{display:block;margin-top:.6rem}

/* Bitácora, formulario */
.entrada{display:flex;gap:1rem;align-items:baseline}
form.sub{display:flex;gap:.6rem;flex-wrap:wrap;margin-top:1rem}
form.sub input{flex:1 1 240px;padding:.8rem 1rem;border:1px solid var(--color-border);border-radius:8px;background:var(--color-surface);color:var(--color-text);font:inherit}

/* Pie y demo */
footer{background:var(--color-primary);color:var(--color-on-primary);padding:3rem 0 2rem}
footer a{color:inherit}
footer .wrap{display:grid;gap:2rem;grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}
footer img{height:64px;display:block;margin-bottom:.8rem}
footer ul{list-style:none;padding:0;margin:0}
footer small{grid-column:1/-1;opacity:.85;border-top:1px solid rgba(243,241,236,.3);padding-top:1rem}
.demo{background:var(--color-accent);color:var(--color-on-accent);font-size:.9rem;text-align:center;padding:.4rem 1rem}
@media (prefers-color-scheme:dark){footer{background:var(--color-surface);color:var(--color-text);border-top:1px solid var(--color-border)}}


/* Enlaces de texto con área táctil de 44 px */
a.t{display:inline-block;padding:.7rem 0}

/* Ejemplos y marcadores de posición */
.ejemplo{border-style:dashed}
.tag{display:inline-block;font-size:.875rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--color-accent-text);margin-bottom:.4rem}
.destacado .tag{display:block}

/* Formulario */
.lbl{display:block;font-weight:700;margin-top:1rem}
.msg{min-height:1.6em;margin:.6rem 0 0;font-weight:500}
.nota{font-size:.9375rem}

/* Inicio: panel lateral con las tres investigaciones */
.panel{display:none;background:var(--color-surface-data);border-radius:12px;padding:1.75rem}
.panel ol{list-style:none;margin:0 0 1rem;padding:0}
.panel li{display:flex;gap:1rem;padding:.9rem 0;border-bottom:1px solid var(--color-border);font-family:var(--font-titulos);font-weight:700;font-size:1.15rem;line-height:1.25}
.panel .num{color:var(--color-primary)}

/* Tablet y PC */
@media (min-width:520px){.g5{grid-template-columns:repeat(3,1fr)}}
@media (min-width:620px){.g5{grid-template-columns:repeat(5,1fr);gap:.75rem}.equipo strong{font-size:.9rem}.equipo .muted{font-size:.875rem;display:block;line-height:1.3}}
@media (min-width:760px){.g3{grid-template-columns:repeat(3,1fr)}}
@media (min-width:760px){.g5{grid-template-columns:repeat(5,1fr);gap:1rem}.equipo strong{font-size:.95rem}}
@media (min-width:1000px){
  .hero-grid{display:grid;grid-template-columns:1.35fr 1fr;gap:3.5rem;align-items:center}
  .hero-grid h1{font-size:clamp(2.4rem,4vw,3.3rem)}
  .panel{display:block}
}
@media (min-width:641px){header img{height:60px}}

/* Celular: encabezado fijo y compacto, menú desplegable */
@media (max-width:640px){
  header .wrap{flex-wrap:nowrap;padding-top:.5rem;padding-bottom:.5rem}
  header img{height:42px}
  .acciones{flex-wrap:nowrap;gap:.5rem}
  .menu-btn{display:inline-flex;align-items:center}
  html.js nav#menu{display:none;position:absolute;top:100%;left:0;right:0;flex-direction:column;align-items:stretch;gap:0;background:var(--color-bg);border-bottom:1px solid var(--color-border);padding:.25rem 1.25rem .75rem}
  html.js nav#menu.abierto{display:flex}
  html.js nav#menu a{min-height:48px;padding:0}
  html:not(.js) .acciones{flex-wrap:wrap}
  html{scroll-padding-top:4.5rem}
  #inicio{padding-top:3rem}
}

/* Detalles de contraste y área táctil */
.logo{display:inline-flex;align-items:center;min-height:44px}
.alt a:not(.btn){color:var(--color-link-hover)}

/* iOS / Safari: sin sombra interna en campos y sin reescalado de texto al girar */
html{-webkit-text-size-adjust:100%;text-size-adjust:100%}
form.sub input,.menu-btn{-webkit-appearance:none;appearance:none}

/* ===== Versión dinámica: espacios compactos, secciones de color, movimiento suave ===== */
:root{--sec-oscura:#0B2D6B;--sec-oscura-texto:#F3F1EC;--sec-oscura-suave:#BBCBE8;--sec-oscura-acento:#E0B795}
@media (prefers-color-scheme:dark){:root{--sec-oscura:#071D45}}

.wrap{max-width:1200px}
section{padding:clamp(2.5rem,5vw,4.25rem) 0}
#inicio{padding:clamp(2rem,5vw,4rem) 0 clamp(2.25rem,5vw,4rem)}
h2{margin-bottom:.45em}
.wrap > h2 + p,.wrap > .muted{margin-bottom:1.5rem}
@media (min-width:760px){.wrap{padding:0 2rem}}

/* Secciones oscuras */
.oscura{background:var(--sec-oscura);color:var(--sec-oscura-texto)}
.oscura .muted{color:var(--sec-oscura-suave)}
.oscura .etiqueta{color:var(--sec-oscura-acento)}
.oscura a:not(.btn){color:var(--sec-oscura-suave)}
.oscura .card{color:var(--color-text);border-color:transparent}
.oscura .card .muted{color:var(--color-text-muted)}
.oscura .card a{color:var(--color-link)}
.oscura .btn-cobre:focus-visible,.oscura a:focus-visible,.oscura summary:focus-visible{outline-color:var(--sec-oscura-acento)}
.oscura .card summary:focus-visible{outline-color:var(--color-focus)}

/* Inicio: gráfico ilustrativo */
.panel{display:block;margin:0;background:var(--color-surface);border:1px solid var(--color-border);border-radius:16px;padding:1.25rem 1.25rem 1rem}
.panel svg{display:block;width:100%;height:auto}
.panel figcaption{display:flex;flex-direction:column;gap:.1rem;padding:.5rem .25rem 0}
.panel figcaption strong{font-family:var(--font-titulos)}
.panel figcaption span{font-size:.9375rem}
.rejilla line{stroke:var(--color-border);stroke-width:1;stroke-dasharray:3 6}
.linea{fill:none;stroke-width:5;stroke-linecap:round;stroke-dasharray:1;stroke-dashoffset:1;animation:dibujar 1.9s .35s cubic-bezier(.5,0,.2,1) forwards}
.l1{stroke:var(--color-primary)}
.l2{stroke:var(--color-accent)}
.inicio-p{fill:var(--color-text)}
.punto{opacity:0;animation:aparecer .4s 2.1s ease-out forwards}
.p1{fill:var(--color-primary)}
.p2{fill:var(--color-accent)}
@keyframes dibujar{to{stroke-dashoffset:0}}
@keyframes aparecer{to{opacity:1}}
@media (max-width:999px){.hero-txt{margin-bottom:1.5rem}}
@media (min-width:1000px){.hero-grid{grid-template-columns:1.25fr 1fr;gap:3rem}}

/* Tarjetas con detalle desplegable */
.grid{gap:1rem}
@media (min-width:760px){.grid{gap:1.25rem}}
.card{padding:1.25rem 1.4rem;transition:box-shadow .2s,border-color .2s}
.card-top{display:flex;justify-content:space-between;align-items:center;gap:.5rem;margin-bottom:.35rem}
.estado{float:none}
.card h4{margin-top:.2rem}
.pregunta{margin-bottom:.9rem}
details{border-top:1px solid var(--color-border);margin-top:.5rem}
summary{list-style:none;cursor:pointer;min-height:44px;display:flex;align-items:center;justify-content:space-between;font-weight:700;color:var(--color-link-hover)}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";font-size:1.5rem;line-height:1;font-weight:500}
details[open] summary::after{content:"\2212"}
details[open] .det{animation:entra .3s ease-out}
.det p{margin-bottom:.6rem}
@keyframes entra{from{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:none}}
@media (hover:hover){.card:hover{box-shadow:0 8px 28px rgba(7,29,69,.18)}}

/* Quiénes somos */
.intro{font-size:1.2rem;max-width:44rem;margin-bottom:1.75rem}
.g2{grid-template-columns:1fr}
@media (min-width:700px){.g2{grid-template-columns:repeat(2,1fr)}}
.pasos{margin-bottom:1.25rem}
.paso{padding:.25rem 0 .25rem 1.1rem;border-left:4px solid var(--color-accent)}
.paso .n{font-family:var(--font-titulos);font-weight:800;font-size:2rem;line-height:1;color:var(--color-primary)}
.paso h3{margin:.3rem 0 .15rem}
.paso p{margin:0}
.mv{margin-bottom:1.75rem}
.mv h3{margin-top:0}
.mv p{margin:0}
.chips.grandes{margin-bottom:1.75rem}
.chips.grandes li{font-size:1rem;padding:.35rem .9rem;background:var(--color-surface)}
.equipo-t{margin-top:.5rem}
.etiqueta{margin-bottom:.6rem}

/* Únete y contacto más compactos */
#unete h2{max-width:30rem}
#unete p{max-width:36rem}
.lbl{margin-top:.5rem}
footer{padding:2.25rem 0 1.5rem}

/* Aparición al hacer scroll */
.rv{opacity:0;transform:translateY(18px);transition:opacity .6s ease var(--d,0ms),transform .6s ease var(--d,0ms),box-shadow .2s,border-color .2s}
.rv.vis{opacity:1;transform:none}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .rv{opacity:1;transform:none;transition:none}
  .linea{animation:none;stroke-dashoffset:0}
  .punto{animation:none;opacity:1}
  details[open] .det{animation:none}
}


/* Carrusel de investigaciones (celular) */
.puntos{display:none}
@media (max-width:759px){
  #investigaciones .carrusel{display:flex;align-items:flex-start;overflow-x:auto;scroll-snap-type:x mandatory;gap:.9rem;margin:0 -1.25rem;padding:.25rem 1.25rem 1rem;scroll-padding:0 1.25rem;scrollbar-width:none;-webkit-overflow-scrolling:touch;overscroll-behavior-x:contain}
  #investigaciones .carrusel::-webkit-scrollbar{display:none}
  #investigaciones .carrusel .card{flex:0 0 86%;scroll-snap-align:start}
  #investigaciones .card.rv{opacity:1;transform:none}
  .puntos{display:flex;justify-content:center;gap:.5rem}
  .puntos span{width:8px;height:8px;border-radius:99px;background:rgba(243,241,236,.4);transition:width .25s,background .25s}
  .puntos span.on{width:24px;background:var(--sec-oscura-acento)}
}
@media (prefers-reduced-motion:reduce){.puntos span{transition:none}}

/* ===== Movimiento y forma inspirados en apple.com (medidos en su página) ===== */
:root{--ease:cubic-bezier(.4,0,.6,1);--ease-out:cubic-bezier(0,0,.2,1);--nav-bg:rgba(243,241,236,.8)}
@media (prefers-color-scheme:dark){:root{--nav-bg:rgba(18,18,18,.72)}}

/* Encabezado translúcido con desenfoque */
header{background:var(--nav-bg);-webkit-backdrop-filter:saturate(180%) blur(20px);backdrop-filter:saturate(180%) blur(20px)}
@supports not ((backdrop-filter:blur(1px)) or (-webkit-backdrop-filter:blur(1px))){header{background:var(--color-bg)}}

/* Tipografía más ajustada y titulares más grandes */
h1,h2,h3{letter-spacing:-.022em}
h1{font-size:clamp(2.4rem,6.5vw,4.4rem)}
h2{font-size:clamp(2rem,4.6vw,3.3rem)}
@media (min-width:1000px){.hero-grid h1{font-size:clamp(2.6rem,4.6vw,4.2rem)}}

/* Formas: píldoras y tarjetas más redondeadas */
.btn,.menu-btn{border-radius:999px}
.card,.panel,.mv .card{border-radius:24px}
.card{padding:1.5rem 1.6rem}
.chips li,.estado{border-radius:999px}

/* Entrada del inicio al cargar, escalonada */
.hero-txt > *{opacity:0;transform:translateY(22px);animation:sube .8s var(--ease-out) forwards}
.hero-txt > :nth-child(1){animation-delay:.05s}.hero-txt > :nth-child(2){animation-delay:.15s}
.hero-txt > :nth-child(3){animation-delay:.25s}.hero-txt > :nth-child(4){animation-delay:.35s}
.hero-txt > :nth-child(5){animation-delay:.45s}
.panel{opacity:0;transform:translateY(22px);animation:sube .9s .3s var(--ease-out) forwards}
@keyframes sube{to{opacity:1;transform:none}}

/* Aparición al hacer scroll: solo opacidad y transform, curva de Apple */
.rv{transform:translateY(24px);transition:opacity .5s var(--ease-out) var(--d,0ms),transform .5s var(--ease-out) var(--d,0ms),box-shadow .24s var(--ease),border-color .24s var(--ease)}

/* Botón circular + del detalle, que gira al abrir */
summary::after{content:"+";flex:none;width:34px;height:34px;border-radius:50%;display:grid;place-items:center;background:var(--color-text);color:var(--color-bg);font-size:1.4rem;font-weight:500;line-height:1;transition:transform .3s var(--ease)}
details[open] summary::after{content:"+";transform:rotate(45deg)}

/* Historia fijada: Preguntar. Investigar. Compartir. */
.historia{margin:1rem 0 2.25rem}
.hp-lista{margin-top:.25rem}
.hp{padding:.35rem 0}
.hp .n{display:block;font-weight:700;color:var(--color-accent-text);font-size:.9375rem}
.hp .gran{font-size:clamp(2.6rem,9.5vw,6.25rem);line-height:1;letter-spacing:-.035em;margin:0}
.hp p{margin:.35rem 0 0;font-size:1.2rem;max-width:34rem}
html.pin .historia{height:230vh}
html.pin .historia-pin{position:sticky;top:4.5rem;height:calc(100vh - 4.5rem);height:calc(100svh - 4.5rem);display:flex;flex-direction:column;justify-content:center}
html.pin .hp{opacity:.2;transition:opacity .4s var(--ease)}
html.pin .hp p{max-height:0;opacity:0;overflow:hidden;margin:0;transition:max-height .4s var(--ease),opacity .4s var(--ease),margin .4s var(--ease)}
html.pin .historia[data-activo="0"] .hp:nth-child(1),
html.pin .historia[data-activo="1"] .hp:nth-child(2),
html.pin .historia[data-activo="2"] .hp:nth-child(3){opacity:1}
html.pin .historia[data-activo="0"] .hp:nth-child(1) p,
html.pin .historia[data-activo="1"] .hp:nth-child(2) p,
html.pin .historia[data-activo="2"] .hp:nth-child(3) p{max-height:6rem;opacity:1;margin-top:.5rem}

@media (prefers-reduced-motion:reduce){
  .hero-txt > *,.panel{animation:none;opacity:1;transform:none}
  summary::after{transition:none}
}

/* Retratos de ejemplo del equipo (se reemplazan por las fotos reales) */
.equipo .foto{position:relative;padding:0;overflow:hidden;display:block}
.equipo .foto img{display:block;width:100%;height:100%;object-fit:cover}
.equipo .foto .ej{position:absolute;left:.5rem;bottom:.5rem;padding:.1rem .6rem;border-radius:999px;background:rgba(18,18,18,.72);color:#F3F1EC;font-size:.8125rem;font-weight:700;letter-spacing:.04em}

/* Índice lateral de secciones (solo escritorio), al estilo del índice de un chat */
.indice{display:none}
@media (min-width:1280px){
  .indice{display:block;position:fixed;left:14px;top:50%;transform:translateY(-50%);z-index:9;
    background:var(--nav-bg);-webkit-backdrop-filter:saturate(180%) blur(20px);backdrop-filter:saturate(180%) blur(20px);
    border:1px solid var(--color-border);border-radius:999px;padding:.55rem .4rem;
    transition:border-radius .24s var(--ease),padding .24s var(--ease),box-shadow .24s var(--ease)}
  .indice ul{list-style:none;margin:0;padding:0}
  .indice a{display:flex;flex-direction:row-reverse;align-items:center;justify-content:flex-end;gap:0;min-height:30px;padding:0 .35rem;text-decoration:none;color:var(--color-text);border-radius:999px}
  .indice a{transition:gap .28s var(--ease)}
  .indice a span{font-size:.9375rem;font-weight:500;white-space:nowrap;max-width:0;opacity:0;overflow:hidden;transition:max-width .28s var(--ease),opacity .2s var(--ease)}
  .indice a i{display:block;flex:none;height:3px;width:14px;border-radius:2px;background:var(--color-text-muted);opacity:.55;transition:width .24s var(--ease),opacity .24s var(--ease),background-color .24s var(--ease)}
  .indice a:hover i,.indice a:focus-visible i{opacity:1}
  .indice a[aria-current="true"] i{width:26px;opacity:1;background:var(--color-accent)}
  .indice a[aria-current="true"] span{font-weight:700}
  .indice:hover,.indice:focus-within{background:var(--color-bg);border-radius:20px;padding:.55rem .55rem;box-shadow:0 8px 28px rgba(7,29,69,.18)}
  .indice:hover a,.indice:focus-within a{gap:.7rem}
  .indice:hover a span,.indice:focus-within a span{max-width:10rem;opacity:1}
  .indice a:hover{background:var(--color-surface-alt)}
}
@media (prefers-reduced-motion:reduce){.indice,.indice a span,.indice a i{transition:none}}

/* Protección: nada puede ensanchar la página hacia la derecha */
html,body{overflow-x:clip}

/* Tarjetas de investigación: misma altura y «Ver detalle» alineado abajo */
#investigaciones .card{display:flex;flex-direction:column}
#investigaciones .card details{margin-top:auto}

/* Cada tarjeta se abre sola: las demás conservan su altura (la igualdad de alturas la fija el script) */
#investigaciones .g3{align-items:start}

/* Celular: equipo centrado (la última fila queda al centro, sin foto huérfana a la izquierda) */
@media (max-width:619px){
  .equipo{display:flex;flex-wrap:wrap;justify-content:center;gap:1.25rem 1rem}
  .equipo > div{flex:0 0 calc(50% - .5rem);text-align:center}
  .equipo .muted{display:block}
}
@media (min-width:520px) and (max-width:619px){.equipo > div{flex-basis:calc(33.333% - .67rem)}}

.mt-grande{margin-top:2rem}

/* Bitácora: entradas que se escriben desde el panel */
.entrada-bit{margin-bottom:1rem}
.bit-foto{display:block;width:100%;height:auto;border-radius:12px;margin:.75rem 0}
.bit-texto p,.bit-texto ul,.bit-texto ol{margin:.5rem 0}
.bit-texto ul,.bit-texto ol{padding-left:1.25rem}
.bit-texto h4{margin:1rem 0 .2rem}
.bit-texto a{color:var(--color-link)}