/* A Paso de Mula — landing (dirección B, "El abra"). Fondo pizarra, Familjen Grotesk, regla de altitud. */

@font-face {
  font-family: "Familjen Grotesk";
  src: url("fonts/FamiljenGrotesk-var.woff2?v=686a2e37d8") format("woff2");
  font-weight: 400 700;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Familjen Grotesk";
  src: url("fonts/FamiljenGrotesk-Italic-var.woff2?v=fbdb588f11") format("woff2");
  font-weight: 400 700;
  font-style: italic;
  font-display: swap;
}

:root {
  /* paleta muestreada de las fotos (ver README) */
  --pizarra: #2b2f35; /* roca mojada bajo el glaciar, foto 436 */
  --niebla: #d6deea;  /* la niebla, foto 436 */
  --ichu: #b5a67f;    /* pasto de puna, foto 462, aclarado para fondo oscuro */
  --lona: #2a7fd9;    /* lonas azules de las cargas, video V058, aclarado a 3.3:1 */
  --senal: #08246d;   /* azul de la señal de Wayramachay, foto 432 */

  --rail: 4.5rem;
  --gutter: clamp(1rem, 3.5vw, 3rem);
  --max: 76rem;
}

html {
  background: var(--pizarra);
  color: var(--niebla);
  font-family: "Familjen Grotesk", "Helvetica Neue", Arial, sans-serif;
  font-size: 106.25%;
  line-height: 1.5;
  -webkit-text-size-adjust: 100%;
}
body {
  margin: 0;
  display: grid;
  grid-template-columns: var(--rail) minmax(0, 1fr);
}
img { display: block; max-width: 100%; height: auto; }
a { color: var(--niebla); text-decoration-thickness: 1px; text-underline-offset: 0.16em; }
a:hover { color: var(--ichu); }
:focus-visible { outline: 3px solid var(--lona); outline-offset: 3px; }
p, h1, h2, h3, ul, ol, dl, figure { margin: 0; }
.tnum { font-variant-numeric: tabular-nums; }

/* la regla de altitud: pegada al viewport, el cursor es lo único que se mueve */
.rail {
  position: sticky;
  top: 0;
  height: 100vh;
  height: 100dvh;
  border-right: 1px solid color-mix(in srgb, var(--ichu) 40%, transparent);
  font-variant-numeric: tabular-nums;
  font-size: 0.72rem;
  color: var(--ichu);
}
.rail-scale {
  position: absolute;
  inset: 2.5rem 0 2.5rem 0;
  background: repeating-linear-gradient(
    to bottom,
    color-mix(in srgb, var(--ichu) 45%, transparent) 0 1px,
    transparent 1px calc(100% / 19)
  );
}
.rail-scale::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 1px;
  background: color-mix(in srgb, var(--ichu) 45%, transparent);
}
.rail-label {
  position: absolute;
  left: 0;
  transform: translateY(-50%);
  background: var(--pizarra);
  padding: 0.05rem 0.2rem 0.05rem 0.45rem;
}
.rail-cursor {
  position: absolute;
  left: 0; right: 0;
  top: 3.7%;
  height: 0;
  border-top: 2px solid var(--lona);
  z-index: 2;
}
.rail-cursor output {
  position: absolute;
  left: 0.45rem;
  bottom: 0.35rem;
  color: var(--niebla);
  font-weight: 600;
  font-size: 0.9rem;
  white-space: nowrap;
  background: var(--pizarra);
  padding-right: 0.25rem;
}
.rail-cursor output::after { content: " m"; font-weight: 400; color: var(--ichu); }
.rail-title { position: absolute; left: 0.45rem; top: 0.9rem; color: var(--ichu); }

main { min-width: 0; }

/* cabecera y navegación */
.masthead {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem 1.5rem;
  align-items: baseline;
  padding: 1.4rem var(--gutter) 1rem;
}
.brand { display: flex; flex-wrap: wrap; gap: 0.2rem 0.6rem; align-items: baseline; }
.brand-name { font-weight: 700; letter-spacing: -0.01em; }
.brand-line, .concept-tag { color: var(--ichu); font-size: 0.9rem; }
.nav { display: flex; flex-wrap: wrap; gap: 0.3rem 1.2rem; font-size: 0.9rem; }
.nav a { text-decoration: none; color: var(--niebla); border-bottom: 1px solid color-mix(in srgb, var(--ichu) 55%, transparent); padding-bottom: 0.1rem; }
.nav a:hover { color: var(--ichu); border-color: var(--ichu); }

/* hero: texto a la izquierda, el abra a la derecha a toda la altura */
.hero {
  display: grid;
  grid-template-columns: minmax(0, 11fr) minmax(0, 9fr);
  min-height: calc(100vh - 4.6rem);
  min-height: calc(100dvh - 4.6rem);
}
.hero-text {
  padding: 1.5rem var(--gutter) 3rem;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  gap: 1.6rem;
}
.hero h1 {
  font-weight: 700;
  font-size: clamp(2.5rem, 1rem + 5.4vw, 5.9rem);
  line-height: 0.97;
  letter-spacing: -0.028em;
  max-width: 13ch;
  text-wrap: balance;
}
.lede {
  font-size: clamp(1rem, 0.92rem + 0.5vw, 1.25rem);
  line-height: 1.45;
  max-width: 50ch;
  font-variant-numeric: tabular-nums;
}
.hero .lede + .lede { margin-top: -0.8rem; color: var(--ichu); }
.hero-photo { position: relative; min-height: 60vh; }
.hero-photo img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 50% 60%;
}
figcaption.over {
  position: absolute;
  left: 0.9rem; bottom: 0.7rem;
  font-size: 0.75rem;
  color: var(--niebla);
  background: color-mix(in srgb, var(--pizarra) 78%, transparent);
  padding: 0.2rem 0.45rem;
  font-variant-numeric: tabular-nums;
}

/* secciones: cada una lleva su señal (lugar + cota), como en el camino */
.place {
  padding: 3.5rem var(--gutter) 4rem;
  max-width: var(--max);
  border-top: 1px solid color-mix(in srgb, var(--ichu) 30%, transparent);
}
.sign {
  display: inline-block;
  background: var(--senal);
  color: #fff;
  border: 3px solid #fff;
  outline: 3px solid var(--senal);
  padding: 0.7rem 1.1rem 0.8rem;
  margin: 0 0 2rem;
  font-variant-numeric: tabular-nums;
  line-height: 1.05;
  max-width: 100%;
}
.sign-name {
  display: block;
  font-weight: 700;
  font-size: clamp(1.7rem, 1.1rem + 2.6vw, 3rem);
  text-transform: uppercase; /* cita la letra de la señal real de Wayramachay; ver README */
  letter-spacing: 0.02em;
}
.sign-row {
  display: flex;
  gap: 1.1rem;
  flex-wrap: wrap;
  margin-top: 0.45rem;
  font-weight: 600;
  font-size: clamp(0.95rem, 0.9rem + 0.4vw, 1.2rem);
}
.sign-row b { font-weight: inherit; }
.place h2 {
  font-weight: 700;
  font-size: clamp(1.9rem, 1.2rem + 2.8vw, 3.8rem);
  line-height: 1;
  letter-spacing: -0.025em;
  max-width: 18ch;
  margin-bottom: 1.6rem;
  text-wrap: balance;
}
.text p { max-width: 54ch; }
.text p + p { margin-top: 0.9rem; }
.text h3 { font-size: 1.05rem; font-weight: 700; margin: 1.6rem 0 0.3rem; max-width: 54ch; }
.text h3 + p { margin-top: 0; }

figure.photo figcaption {
  color: var(--ichu);
  font-size: 0.78rem;
  margin-top: 0.4rem;
  font-variant-numeric: tabular-nums;
}

/* la ruta: datos y cadena de lugares */
.route-grid {
  display: grid;
  grid-template-columns: minmax(0, 9fr) minmax(0, 7fr);
  gap: 2rem 3rem;
  align-items: start;
}
.facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0 1.5rem;
  margin-top: 1.6rem;
  max-width: 44rem;
}
.facts > div { border-top: 1px solid color-mix(in srgb, var(--ichu) 45%, transparent); padding: 0.5rem 0 0.9rem; }
.facts dt { color: var(--ichu); font-size: 0.85rem; }
.facts dd { margin: 0; line-height: 1.35; font-variant-numeric: tabular-nums; }
.chain {
  list-style: none;
  padding: 0;
  margin-top: 1.6rem;
  display: grid;
  gap: 0.5rem;
  max-width: 24rem;
}
.chain li {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 0 1rem;
  align-items: baseline;
  border-left: 3px solid var(--senal);
  padding: 0.25rem 0 0.25rem 0.7rem;
  font-variant-numeric: tabular-nums;
}
.chain li b { font-weight: 700; }
.chain li span { color: var(--ichu); font-size: 0.85rem; grid-column: 1 / -1; }
.chain li.road { border-left-color: color-mix(in srgb, var(--ichu) 50%, transparent); }
.route-photos { display: grid; gap: 1.5rem; }

/* días: texto a la izquierda, fotos a la derecha */
.day-grid {
  display: grid;
  grid-template-columns: minmax(0, 8fr) minmax(0, 9fr);
  gap: 2rem 3rem;
  align-items: start;
}
.photos {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.25rem;
  align-items: start;
}
.photos .wide { grid-column: 1 / -1; }
.photos.one { grid-template-columns: minmax(0, 1fr); }
/* día 2: la vertical del arriero ocupa dos filas; el glaciar va apilado a su derecha; la bajada cierra a media columna */
.photos.day-2 { grid-template-areas: "a b" "a c" "d e"; }
.photos.day-2 .p-a { grid-area: a; }
.photos.day-2 .p-b { grid-area: b; }
.photos.day-2 .p-c { grid-area: c; }
.photos.day-2 .p-d { grid-area: d; }

/* quiénes caminan contigo */
.who-grid {
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(0, 9fr);
  grid-template-areas:
    "tall text"
    "tall wide"
    "loads loads";
  gap: 1.5rem 2rem;
  align-items: start;
}
.who-grid .tall {
  grid-area: tall;
  align-self: stretch;
  display: grid;
  grid-template-rows: minmax(0, 1fr) auto;
}
.who-grid .tall picture { display: block; min-height: 0; }
.who-grid .tall img { width: 100%; height: 100%; object-fit: cover; object-position: 50% 70%; }
.who-grid .text { grid-area: text; }
.who-grid .wide { grid-area: wide; }
.who-grid .loads { grid-area: loads; margin-top: 1rem; }
.loads {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.5rem;
  padding-top: 1.25rem;
  border-top: 1px solid color-mix(in srgb, var(--ichu) 45%, transparent);
}
.loads h3 { font-size: 1rem; font-weight: 700; margin-bottom: 0.45rem; }
.loads ul { padding-left: 1.1rem; }
.loads li { margin-bottom: 0.2rem; }
.loads li::marker { color: var(--ichu); }

/* qué llevar y qué esperar */
.bring-grid {
  display: grid;
  grid-template-columns: minmax(0, 9fr) minmax(0, 7fr);
  gap: 2rem 3rem;
  align-items: start;
}
.bring-grid .loads { margin-top: 1.8rem; }

/* cierre */
.colophon {
  padding: 3rem var(--gutter) 3.5rem;
  border-top: 1px solid color-mix(in srgb, var(--ichu) 30%, transparent);
  max-width: var(--max);
  display: grid;
  gap: 1rem;
}
.colophon h2 {
  font-weight: 700;
  font-size: clamp(1.9rem, 1.2rem + 2.8vw, 3.8rem);
  line-height: 1;
  letter-spacing: -0.025em;
  max-width: 18ch;
}
.colophon .ask { font-size: clamp(1.05rem, 0.95rem + 0.6vw, 1.4rem); line-height: 1.35; max-width: 44ch; }
.colophon .note, .colophon .credit, .colophon .sources { color: var(--ichu); font-size: 0.88rem; max-width: 70ch; line-height: 1.4; }
.colophon .sources a, .colophon .note a { color: inherit; }

/* anchos */
@media (max-width: 1100px) {
  .route-grid, .day-grid, .bring-grid { grid-template-columns: minmax(0, 1fr); }
  .route-photos { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 900px) {
  .hero { grid-template-columns: minmax(0, 1fr); min-height: 0; }
  .hero-photo { order: -1; min-height: 56vh; }
  .hero-text { padding-top: 1.75rem; justify-content: flex-start; }
  .who-grid {
    grid-template-columns: minmax(0, 1fr);
    grid-template-areas: "text" "tall" "wide" "loads";
  }
  .who-grid .tall { display: block; }
  .who-grid .tall img { height: auto; }
}
@media (max-width: 560px) {
  :root { --rail: 2.9rem; }
  .rail { font-size: 0.62rem; }
  .rail-label { padding-left: 0.3rem; }
  .rail-cursor output { left: 0.3rem; font-size: 0.78rem; }
  .rail-cursor output::after { content: none; }
  .rail-title { display: none; }
  .rail-scale { inset: 1.25rem 0 1.25rem 0; }
  .loads, .facts, .route-photos { grid-template-columns: minmax(0, 1fr); }
  .photos { grid-template-columns: minmax(0, 1fr); }
  .photos.day-2 { grid-template-areas: "a" "b" "c" "d"; }
  .sign { padding: 0.6rem 0.8rem 0.7rem; }
  .masthead { padding-top: 1.1rem; }
}

/* Marco «copia»: cada foto como una copia de campo sobre la pizarra (elección 2026-10-20). */
.hero-photo img, .photo img { box-sizing: border-box; padding: 7px; background: #EAE4D9; box-shadow: 0 8px 22px rgb(0 0 0 / .45); }