/* El blog (rehecho 2026-10-29): la misma marca que la portada (index.html). Una sola letra
   (Inter), fondo claro, un acento, el menú de cristal. Lo oscuro solo para las fotos del
   espacio, como el marco de vídeo de la portada. Sin cursiva. */
:root {
  --tinta: #1d1d1f; --suave: #6e6e73; --linea: #e5e5ea; --gris: #f5f5f7; --blanco: #fff; --acento: #2a3fd6;
  --ancho: 1180px; --lectura: 692px; --borde: 22px;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { font-family: 'Inter', system-ui, sans-serif; font-optical-sizing: auto; color: var(--tinta); background: var(--blanco);
  -webkit-font-smoothing: antialiased; font-size: 17px; line-height: 1.5; letter-spacing: -.011em; overflow-x: clip; }
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
em, i { font-style: normal; }
.envoltura { max-width: var(--ancho); margin: 0 auto; padding-inline: 24px; }

h1, h2, h3 { font-weight: 600; letter-spacing: -.035em; line-height: 1.04; }
.antetitulo { font-size: 14px; font-weight: 600; letter-spacing: -.005em; color: var(--acento); }
.boton { display: inline-flex; align-items: center; gap: 8px; height: 48px; padding: 0 24px; border-radius: 999px; font-size: 16px; font-weight: 500;
  background: var(--tinta); color: #fff; transition: background .2s, transform .2s; }
.boton:hover { background: #000; }
.boton:active { transform: scale(.98); }

/* El menú: la misma píldora de cristal de la portada */
.cristal { position: relative; isolation: isolate;
  background: radial-gradient(140% 180% at var(--mx, 30%) var(--my, 0%), rgba(255,255,255,.5), rgba(255,255,255,0) 55%), linear-gradient(180deg, rgba(255,255,255,.46), rgba(255,255,255,.16));
  -webkit-backdrop-filter: blur(14px) saturate(190%) brightness(1.05); backdrop-filter: blur(14px) saturate(190%) brightness(1.05);
  box-shadow: inset 0 1px 1px rgba(255,255,255,.95), inset 0 -1px 1px rgba(255,255,255,.45), 0 0 0 .5px rgba(0,0,0,.07), 0 12px 36px -12px rgba(16,24,64,.3), 0 2px 6px -2px rgba(16,24,64,.1); }
.liquido .cristal { -webkit-backdrop-filter: var(--liquido, none) blur(2px) saturate(190%) brightness(1.05); backdrop-filter: var(--liquido, none) blur(2px) saturate(190%) brightness(1.05); }
.cristal::before { content: ""; position: absolute; inset: 0; border-radius: inherit; padding: 1px; pointer-events: none; z-index: -1;
  background: linear-gradient(135deg, rgba(255,255,255,.95), rgba(255,255,255,.25) 28%, rgba(255,255,255,0) 50%, rgba(255,255,255,.25) 72%, rgba(255,255,255,.9));
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0); -webkit-mask-composite: xor; mask-composite: exclude; }
.cristal.oscuro { color: #fff;
  background: radial-gradient(140% 180% at var(--mx, 30%) var(--my, 0%), rgba(255,255,255,.22), rgba(255,255,255,0) 55%), linear-gradient(180deg, rgba(40,40,46,.34), rgba(20,20,24,.22));
  box-shadow: inset 0 1px 1px rgba(255,255,255,.45), inset 0 -1px 1px rgba(255,255,255,.12), 0 12px 36px -12px rgba(0,0,0,.45); }
.cristal.oscuro::before { background: linear-gradient(135deg, rgba(255,255,255,.7), rgba(255,255,255,.12) 30%, rgba(255,255,255,0) 50%, rgba(255,255,255,.12) 70%, rgba(255,255,255,.55)); }
@supports not ((backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px))) { .cristal { background: rgba(251,251,253,.94); } .cristal.oscuro { background: rgba(28,28,30,.85); } }

.nav { position: fixed; inset: 0 0 auto; z-index: 20; padding: calc(env(safe-area-inset-top, 0px) + 12px) max(12px, env(safe-area-inset-right, 0px)) 0 max(12px, env(safe-area-inset-left, 0px)); pointer-events: none; }
.nav .barra { pointer-events: auto; max-width: 1100px; margin: 0 auto; height: 58px; padding: 0 9px 0 24px; border-radius: 999px; display: flex; align-items: center; gap: 32px; }
.nav .logo img { height: 22px; width: auto; }
.nav nav { display: flex; gap: 26px; font-size: 14px; color: #48484d; }
.nav nav a:hover, .nav nav a[aria-current] { color: var(--tinta); }
.nav nav a[aria-current] { font-weight: 600; }
.nav .acciones { margin-left: auto; display: flex; align-items: center; gap: 18px; font-size: 14px; }
.nav .boton { height: 40px; padding: 0 18px; font-size: 14px; }
@media (max-width: 860px) { .nav nav, .nav .acceso { display: none; } }
/* Sobre las fotos del espacio, el cristal se oscurece para que el menú se siga leyendo */
.nav .barra { transition: background .35s, box-shadow .35s, color .35s; }
.nav .barra.oscuro nav, .nav .barra.oscuro .acceso { color: rgba(255,255,255,.72); }
.nav .barra.oscuro nav a:hover, .nav .barra.oscuro nav a[aria-current] { color: #fff; }
.nav .barra.oscuro .logo img { filter: invert(1); }
.nav .barra.oscuro .boton { background: #f5f5f7; color: var(--tinta); }
@media (max-width: 600px) { .nav .barra { height: 52px; padding: 0 7px 0 18px; } .nav .logo img { height: 20px; } .nav .boton { height: 32px; padding: 0 14px; font-size: 13px; } }

/* ───── La portada del blog ───── */
.cabeza-blog { padding-block: 156px 64px; }
.cabeza-blog h1 { font-size: clamp(52px, 8vw, 112px); margin-top: 14px; }
.cabeza-blog p.entrada { margin-top: 24px; max-width: 30em; font-size: clamp(19px, 1.8vw, 24px); line-height: 1.4; color: var(--suave); letter-spacing: -.018em; }

.portada-entrada { display: block; border-radius: var(--borde); overflow: hidden; background: var(--blanco);
  box-shadow: 0 0 0 1px rgba(0,0,0,.06), 0 40px 90px -40px rgba(20,30,80,.35); }
.portada-entrada .foto { aspect-ratio: 21 / 9; overflow: hidden; background: #000; }
.portada-entrada .foto img { width: 100%; height: 100%; object-fit: cover; object-position: 50% 30%; transition: transform 1.2s cubic-bezier(.2,.7,.2,1); }
.portada-entrada:hover .foto img { transform: scale(1.025); }
.portada-entrada .pie { display: grid; grid-template-columns: 1.3fr 1fr; gap: 40px; padding: 36px 40px 40px; align-items: end; }
.portada-entrada h2 { font-size: clamp(32px, 4vw, 56px); margin-top: 10px; text-wrap: balance; }
.portada-entrada p { color: var(--suave); font-size: 18px; line-height: 1.45; }
.portada-entrada .leer { display: inline-block; margin-top: 14px; color: var(--acento); font-weight: 500; }
.portada-entrada .leer::after { content: ' ›'; }
@media (max-width: 760px) { .portada-entrada .foto { aspect-ratio: 4 / 3; } .portada-entrada .pie { grid-template-columns: 1fr; gap: 14px; padding: 24px 22px 28px; } }
main.envoltura { padding-bottom: 120px; }

/* ───── El artículo ───── */
.cabeza-articulo { padding-block: 156px 56px; text-align: center; }
.cabeza-articulo .meta { display: flex; justify-content: center; gap: 10px; font-size: 14px; color: var(--suave); }
.cabeza-articulo .meta .antetitulo { margin: 0; }
.cabeza-articulo h1 { font-size: clamp(46px, 7.4vw, 104px); margin: 18px auto 0; max-width: 11em; text-wrap: balance; }
.cabeza-articulo .entrada { margin: 28px auto 0; max-width: 31em; font-size: clamp(19px, 1.9vw, 24px); line-height: 1.42; color: var(--suave); letter-spacing: -.018em; text-wrap: pretty; }

/* La foto grande, de borde a borde */
.portada { position: relative; background: #000; }
.portada img { width: 100%; height: min(86vh, 62vw); min-height: 360px; object-fit: cover; object-position: 50% 30%; }
.pie-foto { max-width: var(--ancho); margin: 14px auto 0; padding-inline: 24px; font-size: 13px; line-height: 1.5; color: var(--suave); }
.pie-foto b { color: var(--tinta); font-weight: 600; }

.cuerpo { max-width: calc(var(--lectura) + 48px); margin: 0 auto; padding: 72px 24px 0; font-size: 19px; line-height: 1.62; letter-spacing: -.014em; }
.cuerpo p + p { margin-top: 1.05em; }
.cuerpo h2 { font-size: clamp(30px, 3.4vw, 40px); letter-spacing: -.03em; line-height: 1.1; margin: 1.9em 0 .6em; text-wrap: balance; }
.cuerpo .cita { margin: 1.6em 0; font-size: clamp(26px, 3vw, 34px); font-weight: 600; letter-spacing: -.03em; line-height: 1.2; text-wrap: balance; }
.cuerpo figure { margin: 2em 0; }
.cuerpo figure .marco { border-radius: 18px; overflow: hidden; background: #000; }
.cuerpo figcaption { margin-top: 12px; font-size: 13px; line-height: 1.5; color: var(--suave); }

/* Las cifras del archivo */
.cifras { display: grid; grid-template-columns: repeat(4, 1fr); margin: 2.4em 0 2.2em; border-top: 1px solid var(--linea); }
.cifras div { padding: 22px 16px 0 0; }
.cifras b { display: block; font-size: clamp(34px, 4.4vw, 48px); font-weight: 600; letter-spacing: -.04em; line-height: 1; font-variant-numeric: tabular-nums; }
.cifras span { display: block; margin-top: 8px; font-size: 14px; line-height: 1.35; color: var(--suave); }
@media (max-width: 640px) { .cifras { grid-template-columns: 1fr 1fr; row-gap: 26px; } }

/* La tinta de cada astronauta, como firmaron en la tableta */
.tinta { list-style: none; display: flex; flex-wrap: wrap; gap: 8px; margin: 1.1em 0; }
.tinta li { display: inline-flex; align-items: center; gap: 8px; height: 34px; padding: 0 14px; border-radius: 999px; background: var(--gris); font-size: 15px; font-weight: 500; }
.tinta li::before { content: ''; width: 9px; height: 9px; border-radius: 50%; background: var(--c); }

/* ───── El carrusel: una franja negra, como el marco de vídeo de la portada ───── */
.galeria { margin-top: 96px; background: #000; color: #f5f5f7; padding-block: 88px 72px; }
.galeria .cabeza { display: flex; align-items: end; justify-content: space-between; gap: 24px; }
.galeria .antetitulo { color: #8fa6ff; }
.galeria h2 { font-size: clamp(36px, 5vw, 64px); margin-top: 14px; }
.galeria .mandos { display: flex; align-items: center; gap: 14px; flex-shrink: 0; }
.galeria .cuenta { font-size: 14px; color: #a1a1a6; font-variant-numeric: tabular-nums; min-width: 4.2em; text-align: right; }
.galeria .flecha { width: 48px; height: 48px; border-radius: 50%; border: 0; cursor: pointer; display: grid; place-items: center; transition: opacity .2s, transform .2s; }
.galeria .flecha:active { transform: scale(.94); }
.galeria .flecha:disabled { opacity: .35; cursor: default; }
.galeria .flecha svg { width: 18px; height: 18px; }
.pista { display: flex; gap: 20px; overflow-x: auto; scroll-snap-type: x mandatory; scrollbar-width: none; margin-top: 44px;
  padding-inline: max(24px, calc((100vw - var(--ancho)) / 2 + 24px)); scroll-padding-inline: max(24px, calc((100vw - var(--ancho)) / 2 + 24px)); }
.pista::-webkit-scrollbar { display: none; }
.diapo { flex: 0 0 min(980px, 84vw); scroll-snap-align: start; }
.diapo button { display: block; width: 100%; border: 0; padding: 0; background: #111; border-radius: 18px; overflow: hidden; cursor: zoom-in; aspect-ratio: 3 / 2; }
.diapo img { width: 100%; height: 100%; object-fit: cover; transition: transform 1.2s cubic-bezier(.2,.7,.2,1), opacity .5s; }
.diapo button:hover img { transform: scale(1.02); }
.diapo .texto { max-width: 46em; margin-top: 18px; padding-right: 24px; }
.diapo h3 { font-size: 19px; letter-spacing: -.02em; line-height: 1.3; }
.diapo p { margin-top: 6px; font-size: 15px; line-height: 1.5; color: #a1a1a6; }
.galeria .credito { margin-top: 36px; font-size: 13px; color: #6e6e73; }
@media (max-width: 760px) { .galeria { padding-block: 64px 56px; } .galeria .flecha { display: none; } .diapo { flex-basis: 86vw; } .pista { gap: 14px; } }

/* La foto en grande, al tocarla */
.visor { position: fixed; inset: 0; width: 100%; height: 100%; max-width: none; max-height: none; border: 0; background: #000; color: #f5f5f7; padding: 0; }
.visor::backdrop { background: #000; }
.visor[open] { display: grid; grid-template-rows: 1fr auto; }
.visor img { width: 100%; height: 100%; object-fit: contain; min-height: 0; }
.visor .pie { display: flex; align-items: center; justify-content: space-between; gap: 18px; padding: 16px 24px calc(env(safe-area-inset-bottom, 0px) + 18px); font-size: 14px; color: #a1a1a6; }
.visor .pie b { color: #f5f5f7; font-weight: 600; }
.visor .cerrar { position: absolute; top: calc(env(safe-area-inset-top, 0px) + 16px); right: 16px; height: 40px; padding: 0 18px; border-radius: 999px; border: 0; cursor: pointer; font: inherit; font-size: 14px; font-weight: 500; }
.visor .mandos { display: flex; gap: 10px; flex-shrink: 0; }
.visor .flecha { width: 44px; height: 44px; border-radius: 50%; border: 0; cursor: pointer; display: grid; place-items: center; }
.visor .flecha svg { width: 16px; height: 16px; }

/* Las fuentes */
.fuentes { margin-top: 2.6em; padding: 26px 28px; border-radius: 18px; background: var(--gris); font-size: 16px; }
.fuentes h3 { font-size: 15px; letter-spacing: -.01em; }
.fuentes ul { list-style: none; margin-top: 10px; display: grid; gap: 8px; }
.fuentes a { color: var(--acento); font-weight: 500; }
.fuentes a::after { content: ' ›'; }
.fuentes small { display: block; margin-top: 14px; font-size: 13px; color: var(--suave); }

/* Al final: Luna, como el cierre de la portada */
.cierre { text-align: center; padding: 140px 24px 120px; }
.cierre img { width: 76px; height: 76px; margin: 0 auto 26px; }
.cierre h2 { font-size: clamp(36px, 5vw, 64px); text-wrap: balance; }
.cierre p { margin: 18px auto 0; max-width: 28em; font-size: clamp(18px, 1.6vw, 21px); color: var(--suave); }
.cierre .boton { margin-top: 30px; }

footer { border-top: 1px solid var(--linea); padding: 40px 0 calc(env(safe-area-inset-bottom, 0px) + 56px); font-size: 13px; color: var(--suave); }
footer .envoltura { display: flex; gap: 24px; flex-wrap: wrap; align-items: center; }
footer img { height: 18px; width: auto; }
footer a:hover { color: var(--tinta); }
footer .fin { margin-left: auto; }
@media (max-width: 760px) { footer .fin { margin-left: 0; } }

[data-sube] { opacity: 0; transform: translateY(24px); transition: opacity .8s cubic-bezier(.2,.7,.2,1), transform .8s cubic-bezier(.2,.7,.2,1); }
[data-sube].en-vista { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { [data-sube] { opacity: 1; transform: none; transition: none; } }