/* ------------------------------------------------------------------ *
 * mtnzarriba.com
 *
 * Un libro de memorias familiar, no una web corporativa: una columna,
 * márgenes anchos, papel cálido y fotos sepia dentro del texto.
 * ------------------------------------------------------------------ */

/* Source Serif 4 (SIL OFL 1.1), subconjunto latino, variable en peso.
   Autoalojada a propósito: sin Google Fonts, sin RGPD y sin depender de que
   un CDN siga en pie dentro de quince años. Dos ficheros, 71 KB en total. */
@font-face {
  font-family: 'Source Serif';
  src: url('/fonts/source-serif-var.woff2') format('woff2');
  font-weight: 400 600; font-style: normal; font-display: swap;
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6,
                 U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F,
                 U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'Source Serif';
  src: url('/fonts/source-serif-var-italic.woff2') format('woff2');
  font-weight: 400 600; font-style: italic; font-display: swap;
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6,
                 U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F,
                 U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

:root {
  --papel: #FBF8F3;
  --papel-hondo: #F3EDE3;
  --tinta: #2A2622;
  --tinta-suave: #6A6157;
  --acento: #8A5A3B;
  --acento-claro: #A87551;
  --linea: #E2D9CB;

  --serif: 'Source Serif', Georgia, 'Times New Roman', serif;
  --medida: 34rem;      /* ~66 caracteres */
  --medida-ancha: 66rem;
  --radio: 3px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --papel: #171513;
    --papel-hondo: #211E1A;
    --tinta: #E8E1D6;
    --tinta-suave: #A79C8C;
    --acento: #D19B72;
    --acento-claro: #E0B48F;
    --linea: #38322B;
  }
  /* Las fotos escaneadas de 2006 deslumbran sobre fondo oscuro. */
  img { filter: brightness(0.92); }
}

*, *::before, *::after { box-sizing: border-box; }

html {
  font-size: 100%;
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}

body {
  margin: 0;
  background: var(--papel);
  color: var(--tinta);
  font-family: var(--serif);
  font-size: 1.19rem;
  line-height: 1.65;
  hyphens: auto;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

.envoltorio { max-width: var(--medida); margin-inline: auto; padding-inline: 1.4rem; }
.envoltorio-ancho { max-width: var(--medida-ancha); margin-inline: auto; padding-inline: 1.4rem; }
main { padding-block: 2.5rem 4rem; }

a { color: var(--acento); text-decoration-thickness: 1px; text-underline-offset: 0.16em; }
a:hover { color: var(--tinta); }
:focus-visible { outline: 2px solid var(--acento); outline-offset: 3px; border-radius: var(--radio); }

.saltar {
  position: absolute; left: -9999px;
  background: var(--acento); color: var(--papel);
  padding: 0.6rem 1rem; z-index: 10; border-radius: 0 0 var(--radio) 0;
}
.saltar:focus { left: 0; top: 0; }

img, picture { max-width: 100%; height: auto; display: block; }

/* --- Cabecera ------------------------------------------------------ */

.cabecera {
  border-bottom: 1px solid var(--linea);
  background: var(--papel);
  padding-block: 1rem;
}
.cabecera .envoltorio {
  max-width: var(--medida-ancha);
  display: flex; flex-wrap: wrap; gap: 0.6rem 2rem;
  align-items: baseline; justify-content: space-between;
}
.marca { text-decoration: none; color: inherit; line-height: 1.2; }
.marca-nombre { display: block; font-weight: 600; font-size: 1.05rem; letter-spacing: 0.01em; }
.marca-firma {
  display: block; font-size: 0.76rem; letter-spacing: 0.22em;
  text-transform: uppercase; color: var(--tinta-suave);
}

.nav-lista { display: flex; flex-wrap: wrap; gap: 0.35rem 1.15rem; }
.nav-lista a {
  text-decoration: none; color: var(--tinta-suave);
  font-size: 0.95rem; padding-block: 0.15rem;
  border-bottom: 2px solid transparent;
}
.nav-lista a:hover { color: var(--acento); }
.nav-lista a[aria-current="page"] { color: var(--tinta); border-bottom-color: var(--acento); }

.nav-menu {
  display: none;
  font: inherit; font-size: 0.95rem;
  background: none; border: 1px solid var(--linea); color: var(--tinta);
  padding: 0.3rem 0.8rem; border-radius: var(--radio); cursor: pointer;
}

@media (max-width: 46rem) {
  .cabecera .envoltorio { align-items: center; }
  .nav-menu { display: block; }
  .nav-lista { display: none; width: 100%; flex-direction: column; gap: 0; padding-top: 0.6rem; }
  .nav-lista.abierto { display: flex; }
  .nav-lista a { padding-block: 0.5rem; border-bottom: 1px solid var(--linea); }
  nav { width: 100%; display: flex; flex-direction: column; align-items: flex-start; }
}

/* --- Titulares ----------------------------------------------------- */

h1, h2, h3 { font-weight: 600; line-height: 1.2; text-wrap: balance; }
h1 { font-size: clamp(1.9rem, 1.4rem + 1.9vw, 2.7rem); margin: 0 0 0.5rem; letter-spacing: -0.01em; }
h2 { font-size: 1.5rem; margin: 2.8rem 0 0.9rem; }
h3 { font-size: 1.15rem; margin: 2rem 0 0.6rem; }

.titular { margin-bottom: 2.2rem; }
.migas { font-size: 0.9rem; color: var(--tinta-suave); margin: 0 0 0.7rem; }
.migas a { color: var(--tinta-suave); }
.titular .migas { margin: 0.9rem 0 0; }
.firma { color: var(--tinta-suave); font-style: italic; margin: 0; }
.entradilla { font-size: 1.1rem; color: var(--tinta-suave); margin-top: -1rem; margin-bottom: 2.4rem; }
.apunte { font-size: 0.92rem; color: var(--tinta-suave); }

/* --- Prosa --------------------------------------------------------- */

.prosa p { margin: 0 0 1.35rem; }
.prosa p:first-of-type::first-letter { /* sin capitulares: distraen en textos cortos */ }

blockquote.verso {
  margin: 2rem 0 2rem 1.5rem;
  padding-left: 1.2rem;
  border-left: 2px solid var(--linea);
  font-style: italic;
  color: var(--tinta);
  line-height: 1.9;
}

figure { margin: 2.6rem 0; }
figure img { border-radius: var(--radio); margin-inline: auto; }
figcaption {
  margin-top: 0.7rem; font-size: 0.9rem; line-height: 1.5;
  color: var(--tinta-suave); text-align: center;
}
figure.grupo {
  display: grid; gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 13rem), 1fr));
}
figure.grupo figcaption { grid-column: 1 / -1; }

/* --- Inicio -------------------------------------------------------- */

.inicio main { padding-top: 0; }

.memorial {
  background: var(--papel-hondo);
  border-bottom: 1px solid var(--linea);
  padding-block: 3.5rem;
  margin-bottom: 3rem;
}
.memorial-caja {
  max-width: var(--medida-ancha);
  display: flex; flex-wrap: wrap; gap: 2rem; align-items: center;
}
.memorial-caja > div { flex: 1 1 18rem; }
.memorial h1 { margin-bottom: 0.3rem; }
.retrato img, .memorial picture img {
  width: 11rem; border-radius: 50%;
  filter: sepia(0.28) contrast(1.02);
  border: 3px solid var(--papel);
  box-shadow: 0 2px 14px rgb(42 38 34 / 0.16);
}
.fechas { color: var(--tinta-suave); font-style: italic; margin: 0 0 1rem; }
.lema { margin: 0; max-width: 30rem; }

.nota-luto {
  margin: 0 0 3rem;
  padding: 1.8rem 1.9rem;
  background: var(--papel-hondo);
  border-left: 3px solid var(--acento);
  border-radius: 0 var(--radio) var(--radio) 0;
}
.nota-luto p { margin: 0 0 1rem; }
.nota-luto p:last-child { margin-bottom: 0; }
.nota-luto footer {
  margin-top: 1.2rem; font-size: 0.92rem;
  color: var(--tinta-suave); font-style: italic;
}

.ideario p { margin: 0 0 1.2rem; }

.tarjetas {
  display: grid; gap: 1rem; margin: 3.5rem 0;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 14rem), 1fr));
}
.tarjeta {
  display: block; text-decoration: none; color: inherit;
  padding: 1.2rem 1.3rem;
  border: 1px solid var(--linea); border-radius: var(--radio);
  transition: border-color 0.15s, background 0.15s;
}
.tarjeta:hover { border-color: var(--acento); background: var(--papel-hondo); }
.tarjeta h3 { margin: 0 0 0.4rem; font-size: 1.05rem; color: var(--acento); }
.tarjeta p { margin: 0; font-size: 0.93rem; color: var(--tinta-suave); line-height: 1.5; }

.cronologia { list-style: none; padding: 0; margin: 1.6rem 0 0; }
.cronologia li {
  display: grid; gap: 0.2rem 1.4rem;
  grid-template-columns: 6.5rem 1fr;
  padding-block: 1rem;
  border-top: 1px solid var(--linea);
}
.cronologia time {
  font-size: 0.88rem; color: var(--tinta-suave);
  font-variant-numeric: tabular-nums; padding-top: 0.22rem;
}
.cronologia p { margin: 0; }
@media (max-width: 34rem) {
  .cronologia li { grid-template-columns: 1fr; }
}

/* --- Índices ------------------------------------------------------- */

.lista-personas, .lista-relatos { list-style: none; padding: 0; margin: 0; }
.lista-personas li, .lista-relatos li {
  padding-block: 0.75rem; border-top: 1px solid var(--linea);
}
.lista-relatos a { display: inline-block; }
.lista-relatos .autor {
  display: block; font-size: 0.88rem; color: var(--tinta-suave); font-style: italic;
}
.lista-arboles {
  list-style: none; padding: 0; margin: 1.2rem 0 0;
  display: grid; gap: 0.15rem 1.4rem;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 13rem), 1fr));
  font-size: 0.95rem;
}
.lista-arboles li { padding-block: 0.28rem; }

/* --- Cuadros y álbum ----------------------------------------------- */

.rejilla, .album { list-style: none; padding: 0; margin: 2.5rem auto 0; }
.rejilla {
  display: grid; gap: 1.8rem 1.4rem;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 12.5rem), 1fr));
}
.rejilla a { text-decoration: none; color: inherit; display: block; }
.rejilla img {
  border-radius: var(--radio);
  box-shadow: 0 1px 8px rgb(42 38 34 / 0.13);
  transition: transform 0.18s;
}
.rejilla a:hover img { transform: translateY(-3px); }
.pie-obra {
  display: block; margin-top: 0.6rem;
  font-size: 0.92rem; line-height: 1.35; color: var(--tinta-suave);
}
.rejilla a:hover .pie-obra { color: var(--acento); }

.album {
  display: grid; gap: 2.4rem 1.6rem;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 17rem), 1fr));
}
.album figure { margin: 0; }
.album figcaption { text-align: left; }
.album figcaption strong { display: block; color: var(--tinta); font-weight: 600; }
.album figcaption span { display: block; margin-top: 0.2rem; }

.obra { text-align: center; }
.obra h1 { margin-bottom: 1.5rem; }
.obra .migas { text-align: left; }
.obra picture img { margin-inline: auto; border-radius: var(--radio); box-shadow: 0 2px 18px rgb(42 38 34 / 0.16); }
.comentario {
  margin: 1.8rem auto 0; max-width: 30rem;
  font-style: italic; font-size: 1.08rem;
}
.paso {
  display: flex; justify-content: space-between; gap: 1.5rem;
  margin-top: 3.5rem; padding-top: 1.2rem;
  border-top: 1px solid var(--linea);
  font-size: 0.92rem; text-align: left;
}
.paso .siguiente { text-align: right; }

/* --- Libro de visitas ---------------------------------------------- */

.libro { list-style: none; padding: 0; margin: 0; counter-reset: none; }
.libro li { padding-block: 1.8rem; border-top: 1px solid var(--linea); }
.libro blockquote { margin: 0; font-style: italic; }
.libro blockquote p { margin: 0 0 0.8rem; }
.libro footer { margin-top: 0.8rem; font-size: 0.9rem; color: var(--tinta-suave); }

/* --- Pie ----------------------------------------------------------- */

.pie {
  border-top: 1px solid var(--linea);
  background: var(--papel-hondo);
  padding-block: 2.5rem;
  font-size: 0.92rem; color: var(--tinta-suave);
}
.pie .envoltorio { max-width: var(--medida-ancha); }
.pie p { margin: 0 0 0.6rem; }
.pie-enlaces { margin-bottom: 0; }

/* --- Impresión ------------------------------------------------------ */

@media print {
  .cabecera, .pie, .paso, .saltar, .tarjetas { display: none; }
  body { font-size: 11pt; background: #fff; color: #000; }
  a { color: #000; text-decoration: none; }
  figure { break-inside: avoid; }
}