/* ==========================================================================
   Rubén M. Riera — hoja de estilos
   1. Tipografías   2. Tokens   3. Base   4. Cabecera   5. Rejilla
   6. Medios/figuras   7. Home   8. Obra (archivo)   9. Proyecto
   10. Secuencia   11. Lightbox   12. Info   13. Pie   14. Movimiento
   ========================================================================== */

/* 1. Tipografías (OFL, locales) ------------------------------------------ */
@font-face {
  font-family: "Hanken Grotesk";
  src: url("../fonts/hanken-grotesk-latin-wght-normal.woff2") format("woff2");
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Hanken Grotesk";
  src: url("../fonts/hanken-grotesk-latin-wght-italic.woff2") format("woff2");
  font-weight: 100 900;
  font-style: italic;
  font-display: swap;
}
@font-face {
  font-family: "Newsreader";
  src: url("../fonts/newsreader-latin-opsz-normal.woff2") format("woff2");
  font-weight: 200 800;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Newsreader";
  src: url("../fonts/newsreader-latin-opsz-italic.woff2") format("woff2");
  font-weight: 200 800;
  font-style: italic;
  font-display: swap;
}

/* 2. Tokens --------------------------------------------------------------- */
:root {
  /* Fondo: casi blanco cálido. ?fondo=crema muestra el anterior (referencia) */
  --paper: #f8f7f4;
  --paper-2: #eeede8;
  --ink: #151515;
  --ink-2: #56554f;   /* 7:1 sobre el papel */
  --ink-3: #706e68;   /* 4,8:1 (AA) para estados inactivos */
  --line: rgba(21, 21, 21, 0.16);

  --sans: "Hanken Grotesk", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --serif: "Newsreader", Georgia, "Times New Roman", serif;

  /* escala tipográfica */
  --fs-meta: 0.8125rem;                                /* 13px    */
  --fs-ui: 0.9375rem;                                  /* 15px    */
  --fs-caption: 0.875rem;                              /* 14px    */
  --fs-body: clamp(1.125rem, 0.98rem + 0.45vw, 1.3125rem); /* 18 → 21 */
  --fs-lede: clamp(1.5rem, 1.1rem + 1.35vw, 2.35rem);
  --fs-title: clamp(1.75rem, 1.1rem + 2.4vw, 3.4rem);

  /* espaciado */
  --margin: clamp(16px, 3.2vw, 56px);
  --gutter: clamp(12px, 1.6vw, 28px);
  --header-h: 64px;
  --space-s: clamp(24px, 3vw, 40px);
  --space-m: clamp(48px, 7vw, 112px);
  --space-l: clamp(80px, 13vw, 208px);

  --vh: 100svh;
  --measure: 34em;
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
  --dur: 700ms;

  color-scheme: light;
}

html[data-fondo="crema"] { --paper: #f3f2ee; --paper-2: #ebe9e3; }

/* 3. Base ----------------------------------------------------------------- */
*,
*::before,
*::after { box-sizing: border-box; }

html {
  scrollbar-gutter: stable; /* sin saltos cuando aparece la barra de scroll */
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-padding-top: calc(var(--header-h) + 16px);
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: var(--fs-ui);
  line-height: 1.45;
  font-weight: 400;
  letter-spacing: 0.005em;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  font-feature-settings: "kern", "liga";
  min-height: var(--vh);
  display: flex;
  flex-direction: column;
}

main { flex: 1 0 auto; }

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

a {
  color: inherit;
  text-decoration: none;
}

em, i { font-style: italic; }

button {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  padding: 0;
  cursor: pointer;
}

h1, h2, h3, h4, p, ul, ol, dl, dd, figure, blockquote { margin: 0; padding: 0; }
ul, ol { list-style: none; }
h1, h2, h3, h4 { font-weight: 400; }

::selection { background: var(--ink); color: var(--paper); }

:focus-visible {
  outline: 1px solid var(--ink);
  outline-offset: 4px;
}

.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

.skip-link {
  position: absolute;
  left: var(--margin);
  top: -40px;
  z-index: 100;
  background: var(--ink);
  color: var(--paper);
  padding: 6px 10px;
}
.skip-link:focus { top: 8px; }

/* enlaces de texto: subrayado fino, aparece al pasar */
.link {
  background-image: linear-gradient(currentColor, currentColor);
  background-size: 0% 1px;
  background-position: 0 100%;
  background-repeat: no-repeat;
  transition: background-size 400ms var(--ease);
  padding-bottom: 1px;
}
.link:hover,
.link:focus-visible { background-size: 100% 1px; }

.link--under { background-size: 100% 1px; }
.link--under:hover { background-size: 0% 1px; background-position: 100% 100%; }

.muted { color: var(--ink-2); }

.num { font-variant-numeric: tabular-nums; }

/* 4. Cabecera ------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  height: var(--header-h);
  padding: 0 var(--margin);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  font-size: 1rem;
  background: color-mix(in srgb, var(--paper) 92%, transparent);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  transition: transform 500ms var(--ease);
}
.site-header.is-hidden { transform: translateY(-100%); }

.site-name {
  font-weight: 500;
  letter-spacing: 0.01em;
  white-space: nowrap;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: clamp(18px, 2.4vw, 36px);
}
.site-nav a[aria-current="page"] {
  background-size: 100% 1px;
}

.lang-switch {
  display: flex;
  gap: 6px;
  color: var(--ink-3);
  font-size: var(--fs-meta);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.lang-switch button { color: var(--ink-3); transition: color 300ms; }
.lang-switch button:hover { color: var(--ink); }
.lang-switch button[aria-pressed="true"] { color: var(--ink); }
.lang-switch span { color: var(--ink-3); }

/* 5. Rejilla ------------------------------------------------------------- */
.grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  column-gap: var(--gutter);
  padding-inline: var(--margin);
}

.section-label {
  font-size: var(--fs-meta);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-2);
  font-weight: 400;
}

/* 6. Medios / figuras ------------------------------------------------------ */
.media {
  position: relative;
  display: block;
  background: var(--tone, var(--paper-2));
  aspect-ratio: var(--ratio);
  overflow: hidden;
}
.media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity 900ms var(--ease);
}
.media img.is-loaded { opacity: 1; }
.media.is-loaded { background: transparent; }

.caption {
  margin-top: 12px;
  font-size: var(--fs-caption);
  line-height: 1.5;
  color: var(--ink-2);
  max-width: 46em;
}
.caption span { display: block; }
.caption em { color: var(--ink); }

/* 7. Home ----------------------------------------------------------------- */
.home-hero {
  padding: clamp(8px, 2.5vh, 28px) var(--margin) 0;
}
/* Tamaño fijado desde el primer instante (sin saltos): tan ancha como quepa
   sin superar la altura de la ventana; centrada en pantallas muy anchas. */
.home-hero__figure {
  width: min(100%, calc((var(--vh) - var(--header-h) - 96px) * var(--r)));
  margin-inline: auto;
}
.home-hero__image,
.home-hero__link { display: block; }
.home-hero .media { width: 100%; }
.home-hero__caption {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 24px;
  margin-top: 14px;
  font-size: var(--fs-ui);
}
.home-hero__caption .muted { font-size: var(--fs-meta); }

/* presentación breve */
.home-about {
  padding-top: var(--space-l);
  align-items: baseline;
}
.home-about__intro {
  grid-column: 1 / span 3;
  font-size: var(--fs-ui);
}
.home-about__body { grid-column: 4 / span 8; }
.home-about__text {
  font-family: var(--serif);
  font-size: clamp(1.3rem, 1.05rem + 0.9vw, 1.95rem);
  line-height: 1.28;
  letter-spacing: -0.008em;
  font-variation-settings: "opsz" 40;
  max-width: 30em;
  text-wrap: pretty;
}
.home-about__links {
  margin-top: 1.4em;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 28px;
  font-size: var(--fs-ui);
}

/* Regular project wall: the same frames in Home and Work. */
.home-selection,
.work-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  column-gap: clamp(28px, 5vw, 88px);
  row-gap: clamp(48px, 6vw, 104px);
  align-items: start;
}
.home-selection { padding-top: var(--space-l); }
.sel,
.work-item { min-width: 0; }
.sel a,
.work-item a { display: block; }
.sel .media,
.work-item .media { aspect-ratio: 1; }
.sel .media img,
.work-item .media img { display: block; object-fit: cover; }
.sel__meta,
.work-item__meta {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 16px;
  margin-top: 16px;
}
.sel__title { transition: color 300ms; }
.sel a:hover .sel__title { color: var(--ink-2); }
.work-item__year { color: var(--ink-2); }
.sel__meta > :last-child,
.work-item__year { flex-shrink: 0; }
.project-summary {
  margin-top: 10px;
  max-width: 42ch;
  min-height: 4.65em;
  font-size: var(--fs-caption);
  line-height: 1.55;
  color: var(--ink-2);
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
  overflow: hidden;
  overflow-wrap: anywhere;
}

.home-index {
  padding-top: var(--space-l);
  padding-bottom: var(--space-m);
}
.home-index__head {
  grid-column: 1 / span 3;
  padding-top: 4px;
}
.home-index__list {
  grid-column: 4 / -1;
}

/* lista tipográfica de proyectos (home + vista índice) */
.index-list { border-top: 1px solid var(--line); }
.index-row {
  display: grid;
  grid-template-columns: 4.5em minmax(0, 1fr) auto;
  gap: var(--gutter);
  align-items: baseline;
  padding: 14px 0 13px;
  border-bottom: 1px solid var(--line);
  transition: color 300ms, padding 400ms var(--ease);
}
.index-row__title { font-size: clamp(1.05rem, 0.9rem + 0.55vw, 1.45rem); letter-spacing: -0.005em; }
.index-row__year,
.index-row__extra { color: var(--ink-2); font-size: var(--fs-meta); }
.index-list:hover .index-row { color: var(--ink-3); }
.index-list:hover .index-row:hover { color: var(--ink); }
.index-row:hover .index-row__year,
.index-row:hover .index-row__extra { color: var(--ink-2); }

.index-list--full .index-row {
  grid-template-columns: 4.5em minmax(0, 1.2fr) minmax(0, 1fr);
}
.index-row__extra { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

/* previsualización flotante del índice (solo puntero fino) */
.index-preview {
  position: fixed;
  z-index: 40;
  right: var(--margin);
  top: 50%;
  width: clamp(220px, 25vw, 440px);
  transform: translateY(-50%);
  pointer-events: none;
  opacity: 0;
  transition: opacity 350ms var(--ease);
}
.index-preview.is-visible { opacity: 1; }
.index-preview img { width: 100%; height: auto; }

/* 8. Obra / archivo -------------------------------------------------------- */
.page-head {
  padding-top: clamp(28px, 6vh, 72px);
  padding-bottom: var(--space-m);
  align-items: baseline;
}
.page-head__title {
  grid-column: 1 / span 6;
  font-size: var(--fs-title);
  line-height: 1;
  letter-spacing: -0.02em;
}
.page-head__side {
  grid-column: 7 / -1;
  display: flex;
  justify-content: flex-end;
  gap: 28px;
  align-items: baseline;
}

.view-toggle { display: flex; gap: 14px; }
.view-toggle button { color: var(--ink-3); transition: color 300ms; }
.view-toggle button:hover,
.view-toggle button[aria-pressed="true"] { color: var(--ink); }

.work-grid { padding-bottom: var(--space-l); }
.work-item .media img { transition: opacity 900ms var(--ease), transform 1200ms var(--ease); }
.work-item a:hover .media img { transform: scale(1.015); }

.work-index {
  padding-bottom: var(--space-l);
}
.work-index .index-list { grid-column: 1 / span 8; }

[hidden] { display: none !important; }

/* 9. Proyecto ------------------------------------------------------------- */
.project-head {
  padding-top: clamp(28px, 6vh, 72px);
  padding-bottom: clamp(28px, 4vw, 56px);
  align-items: baseline;
}
.project-head__title {
  grid-column: 1 / span 9;
  font-size: var(--fs-title);
  line-height: 1.02;
  letter-spacing: -0.02em;
  text-wrap: balance;
}
.project-head__year {
  grid-column: 10 / -1;
  justify-self: end;
  color: var(--ink-2);
  font-size: var(--fs-ui);
}

.flow {
  row-gap: var(--space-m);
  padding-bottom: var(--space-m);
}

/* Bloque de imágenes: una o varias filas + pie */
.set {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: subgrid;
  row-gap: clamp(16px, 2.2vw, 32px);
}
.set > .caption { grid-column: var(--cap-col, 1 / -1); margin-top: -4px; }

.row {
  grid-column: var(--col, 1 / -1);
  display: flex;
  flex-wrap: wrap;
  column-gap: var(--gutter);
  row-gap: 0;
  align-items: flex-end;
}
.row > .caption { flex: 0 0 100%; max-width: none; }
.row > .caption span { max-width: 46em; }
.row--wide-b, .row--single-b { justify-content: flex-end; }
.row--wide-b > .caption, .row--single-b > .caption { text-align: left; }
.row--lead, .row--wide-c, .row--single-c { justify-content: center; }
/* ninguna fila supera la altura de la ventana; el pie queda alineado con la imagen */
.row { max-width: var(--limit, none); }
.row.is-one {
  width: 100%;
  max-width: min(calc((var(--vh) - var(--header-h) - 56px) * var(--sum)), var(--limit, 100vw));
}
.row.is-one > .frame { flex: 1 1 auto; }
.row--wide-b.is-one, .row--single-b.is-one { justify-self: end; }
.row--lead.is-one, .row--wide-c.is-one, .row--single-c.is-one { justify-self: center; }
.row--pair, .row--pair-p, .row--trio {
  width: 100%;
  max-width: min(calc((var(--vh) - var(--header-h) - 56px) * var(--sum) + var(--gutter) * 2), var(--limit, 100vw));
  justify-self: center;
}
.row > .frame {
  flex: var(--r) 1 0;
  min-width: 0;
}
.frame { cursor: zoom-in; display: block; width: 100%; text-align: left; }
.frame .media { width: 100%; }

/* tipos de fila (elegidos por el algoritmo según orientación) */
.row--lead      { --col: 1 / -1; }
.row--wide-a    { --col: 1 / span 10; }
.row--wide-b    { --col: 3 / -1; }
.row--wide-c    { --col: 2 / span 10; }
.row--single-a  { --col: 2 / span 5; }
.row--single-b  { --col: 7 / span 5; }
.row--single-c  { --col: 4 / span 6; }
.row--pair      { --col: 2 / span 10; }
.row--pair-p    { --col: 3 / span 8; }
.row--trio      { --col: 1 / -1; }

.row--lead.is-portrait { --col: 4 / span 6; }

/* Introducción: ficha técnica + texto */
.intro {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: subgrid;
  row-gap: var(--space-s);
  padding-block: clamp(8px, 2vw, 32px);
}
.intro--meta-only .meta {
  grid-column: 1 / -1;
  position: static;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  column-gap: var(--gutter);
}
.intro--meta-only .meta__row:last-child { border-bottom: 0; }
.intro--meta-only .meta { border-bottom: 1px solid var(--line); }
.meta {
  grid-column: 1 / span 3;
  font-size: var(--fs-meta);
  line-height: 1.5;
  align-self: start;
  position: sticky;
  top: calc(var(--header-h) + 24px);
}
.meta__row { padding: 9px 0 10px; border-top: 1px solid var(--line); }
.meta__row:last-child { border-bottom: 1px solid var(--line); }
.meta dt { color: var(--ink-2); margin-bottom: 2px; }
.meta dd { margin: 0; }
.meta a { border-bottom: 1px solid var(--line); }
.meta a:hover { border-color: var(--ink); }

.text {
  grid-column: 5 / span 7;
  font-family: var(--serif);
  font-size: var(--fs-body);
  line-height: 1.52;
  font-optical-sizing: auto;
  font-variation-settings: "opsz" 16;
  max-width: var(--measure);
  hanging-punctuation: first;
}
.text p + p { text-indent: 1.6em; }
.text p.text__sign, .text p.text__cite, .text p.text__note,
.text .text__lede + p, .text .text__lang-note + p, .text .text__heading + p { text-indent: 0; }
.text__heading {
  font-family: var(--serif);
  font-style: italic;
  font-size: var(--fs-body);
  margin-bottom: 1.1em;
}
.text__lede {
  font-size: var(--fs-lede);
  line-height: 1.18;
  letter-spacing: -0.01em;
  font-style: italic;
  margin-bottom: 1.2em;
  font-variation-settings: "opsz" 60;
  text-wrap: balance;
}
.text--quote p { font-style: italic; }
.text__sign,
.text__cite,
.text__note {
  font-family: var(--sans);
  font-size: var(--fs-meta);
  color: var(--ink-2);
  margin-top: 1.8em;
}
.text__cite + .text__note,
.text__note + .text__cite { margin-top: 0.3em; }
.text__lang-note {
  font-family: var(--sans);
  font-size: var(--fs-meta);
  color: var(--ink-3);
  margin-bottom: 1.2em;
}

/* cita dentro del flujo */
.quote {
  grid-column: 3 / span 8;
  font-family: var(--serif);
  font-size: var(--fs-lede);
  line-height: 1.22;
  letter-spacing: -0.01em;
  font-variation-settings: "opsz" 60;
  text-wrap: pretty;
}
.quote--long {
  grid-column: 5 / span 7;
  font-size: var(--fs-body);
  line-height: 1.52;
  font-variation-settings: "opsz" 16;
  max-width: var(--measure);
}
.quote footer {
  margin-top: 1.1em;
  font-family: var(--sans);
  font-size: var(--fs-meta);
  line-height: 1.5;
  color: var(--ink-2);
  display: flex;
  flex-wrap: wrap;
  gap: 4px 18px;
}

/* vídeo con carga diferida */
.video {
  grid-column: 2 / span 10;
}
.video__frame {
  position: relative;
  aspect-ratio: 16 / 9;
  background: var(--ink);
  color: var(--paper);
  overflow: hidden;
}
.video__frame iframe {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  border: 0;
}
.video__play {
  position: absolute; inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 14px;
  width: 100%;
  text-align: center;
  font-size: var(--fs-ui);
  letter-spacing: 0.02em;
}
.video__icon {
  width: 56px; height: 56px;
  border: 1px solid color-mix(in srgb, var(--paper) 60%, transparent);
  border-radius: 50%;
  display: grid;
  place-items: center;
  transition: transform 500ms var(--ease), border-color 300ms;
}
.video__icon::before {
  content: "";
  margin-left: 4px;
  border-left: 12px solid currentColor;
  border-top: 7px solid transparent;
  border-bottom: 7px solid transparent;
}
.video__play:hover .video__icon { transform: scale(1.06); border-color: var(--paper); }
.video__note { font-size: var(--fs-meta); color: color-mix(in srgb, var(--paper) 55%, transparent); }

/* documentos y enlaces del proyecto */
.extras {
  grid-column: 5 / span 7;
  display: grid;
  gap: var(--space-s);
}
.doc-list li {
  padding: 12px 0 13px;
  border-top: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: baseline;
}
.doc-list li:last-child { border-bottom: 1px solid var(--line); }
.doc-list__title { max-width: 36em; }
.doc-list__action { color: var(--ink-2); white-space: nowrap; font-size: var(--fs-meta); }
.doc-list a:hover .doc-list__action { color: var(--ink); }
.extras .section-label { margin-bottom: 12px; }

/* paginación entre proyectos */
.pager {
  padding-top: var(--space-m);
  padding-bottom: var(--space-m);
  border-top: 1px solid var(--line);
  margin-top: var(--space-m);
  row-gap: 28px;
}
.pager__prev { grid-column: 1 / span 4; }
.pager__all  { grid-column: 5 / span 4; text-align: center; align-self: end; }
.pager__next { grid-column: 9 / span 4; text-align: right; }
.pager a { display: block; }
.pager__all a { display: inline; }
.pager .section-label { display: block; margin-bottom: 10px; }
.pager__title {
  font-size: clamp(1.1rem, 0.9rem + 0.9vw, 1.75rem);
  letter-spacing: -0.01em;
  line-height: 1.1;
}
.pager__thumb {
  display: block;
  width: fit-content;
  margin-bottom: 14px;
}
.pager__thumb .media { height: clamp(64px, 6.5vw, 104px); width: auto; }
.pager__next .pager__thumb { margin-left: auto; }

/* 10. Secuencia (Palpentes y cualquier proyecto presentation: "sequence") */
.sequence {
  grid-column: 1 / -1;
  margin-inline: calc(var(--margin) * -1);
}
.sequence__track {
  display: flex;
  gap: var(--gutter);
  overflow-x: auto;
  overscroll-behavior-x: contain;
  scroll-snap-type: x proximity;
  scroll-padding-inline: var(--margin);
  padding-inline: var(--margin);
  scrollbar-width: none;
  cursor: grab;
}
.sequence__track::-webkit-scrollbar { display: none; }
.sequence__track.is-dragging { cursor: grabbing; scroll-snap-type: none; }
.sequence__track.is-dragging * { pointer-events: none; }
.sequence__item {
  flex: 0 0 auto;
  scroll-snap-align: start;
  height: clamp(300px, calc(var(--vh) - var(--header-h) - 230px), 880px);
}
.sequence__item .frame { height: 100%; width: auto; }
.sequence__item .media {
  height: 100%;
  width: auto;
}
.sequence__item:last-child { padding-right: var(--margin); box-sizing: content-box; }
.sequence__bar {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 18px var(--margin) 0;
  font-size: var(--fs-ui);
}
.sequence__progress {
  flex: 1;
  height: 1px;
  background: var(--line);
  position: relative;
  overflow: hidden;
}
.sequence__progress i {
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 100%;
  background: var(--ink);
  transform-origin: 0 50%;
  transform: scaleX(var(--p, 0));
  transition: transform 200ms linear;
}
.sequence__nav { display: flex; gap: 10px; }
.sequence__nav button { color: var(--ink-2); transition: color 300ms; display: grid; place-items: center; width: 32px; height: 32px; }
.sequence__nav svg { width: 22px; height: 22px; fill: none; stroke: currentColor; stroke-width: 1.2; }
.sequence__nav button:hover { color: var(--ink); }
.sequence__nav button:disabled { color: var(--ink-3); opacity: 0.5; cursor: default; }

/* 11. Lightbox ------------------------------------------------------------ */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: var(--paper);
  display: grid;
  grid-template-rows: var(--header-h) minmax(0, 1fr) auto;
  opacity: 0;
  visibility: hidden;
  transition: opacity 450ms var(--ease), visibility 0s linear 450ms;
}
.lightbox.is-open {
  opacity: 1;
  visibility: visible;
  transition: opacity 450ms var(--ease);
}
.lightbox__top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 var(--margin);
  font-size: var(--fs-ui);
}
.lightbox__stage {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 clamp(56px, 7vw, 112px); /* espacio para las flechas */
  min-height: 0;
  touch-action: pan-y pinch-zoom;    /* el deslizamiento horizontal lo gestiona el visor */
}
.lightbox__stage img {
  max-width: 100%;
  max-height: 100%;
  width: auto;
  height: auto;
  object-fit: contain;
  transition: opacity 300ms var(--ease), transform 380ms var(--ease);
  user-select: none;
  -webkit-user-drag: none;
}
.lightbox__stage img.is-swapping { opacity: 0; }
/* cada mitad de la pantalla lleva a la imagen anterior / siguiente */
.lightbox__hit {
  position: absolute;
  top: 0; bottom: 0;
  width: 50%;
  display: flex;
  align-items: center;
  cursor: pointer;
  color: var(--ink-2);
}
.lightbox__hit--prev { left: 0; justify-content: flex-start; padding-left: clamp(8px, 2vw, 36px); }
.lightbox__hit--next { right: 0; justify-content: flex-end; padding-right: clamp(8px, 2vw, 36px); }
.lightbox__arrow {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  transition: color 300ms, transform 400ms var(--ease);
}
.lightbox__arrow svg { width: 28px; height: 28px; fill: none; stroke: currentColor; stroke-width: 1.2; }
.lightbox__hit:hover { color: var(--ink); }
.lightbox__hit--prev:hover .lightbox__arrow { transform: translateX(-4px); }
.lightbox__hit--next:hover .lightbox__arrow { transform: translateX(4px); }
.lightbox__hit:focus-visible { outline: none; }
.lightbox__hit:focus-visible .lightbox__arrow { outline: 1px solid var(--ink); }
.lightbox__caption {
  padding: 16px var(--margin) 22px;
  min-height: 72px;
}
.lightbox__caption .caption { margin: 0; }

/* 12. Info ---------------------------------------------------------------- */
.info-head {
  padding-top: clamp(28px, 6vh, 72px);
  padding-bottom: var(--space-m);
  row-gap: var(--space-s);
}
.info-head__label { grid-column: 1 / span 3; }
.info-statement {
  grid-column: 4 / span 9;
  font-family: var(--serif);
  font-size: var(--fs-lede);
  line-height: 1.22;
  letter-spacing: -0.012em;
  font-variation-settings: "opsz" 60;
  text-wrap: pretty;
  max-width: 26em;
}

.info-body {
  row-gap: var(--space-m);
  padding-bottom: var(--space-m);
}
.info-figure {
  grid-column: 1 / span 3;
  grid-row: span 2;
  align-self: start;
}
.info-bio {
  grid-column: 4 / span 7;
  font-family: var(--serif);
  font-size: var(--fs-body);
  line-height: 1.52;
  font-variation-settings: "opsz" 16;
  max-width: var(--measure);
}
.info-bio__headline {
  font-family: var(--sans);
  font-size: var(--fs-ui);
  margin-bottom: 1em;
}
.info-bio p + p { margin-top: 1em; }
.info-bio .cta-line {
  margin-top: 1.6em;
  font-family: var(--sans);
  font-size: var(--fs-ui);
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
}

.cv {
  grid-column: 4 / -1;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-m) var(--gutter);
}
.cv__block h2 { margin-bottom: 14px; }
.cv__list li {
  display: grid;
  grid-template-columns: 3.6em minmax(0, 1fr);
  gap: 12px;
  padding: 10px 0 11px;
  border-top: 1px solid var(--line);
  line-height: 1.4;
}
.cv__list li:last-child { border-bottom: 1px solid var(--line); }
.cv__year { color: var(--ink-2); }
.cv__detail { color: var(--ink-2); display: block; }
.cv__title em { font-style: italic; }
.cv__list a.cv__title { border-bottom: 1px solid var(--line); }
.cv__list a.cv__title:hover { border-color: var(--ink); }

.press {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: subgrid;
  row-gap: var(--space-s);
  padding-top: var(--space-m);
  border-top: 1px solid var(--line);
}
.press > .section-label { grid-column: 1 / span 3; }
.press__groups {
  grid-column: 4 / -1;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-s) var(--gutter);
}
.press__group h3 { margin-bottom: 14px; }
.press__item {
  padding: 12px 0 14px;
  border-top: 1px solid var(--line);
}
.press__item:last-child { border-bottom: 1px solid var(--line); }
.press__title { font-family: var(--serif); font-size: 1.15rem; font-style: italic; line-height: 1.25; }
.press__by, .press__detail { color: var(--ink-2); font-size: var(--fs-meta); margin-top: 4px; }
.press__links { display: flex; gap: 16px; flex-wrap: wrap; margin-top: 8px; font-size: var(--fs-meta); }

.contact {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: subgrid;
  padding-top: var(--space-m);
  border-top: 1px solid var(--line);
}
.contact > .section-label { grid-column: 1 / span 3; }
.contact__mail {
  grid-column: 4 / -1;
  font-size: var(--fs-title);
  letter-spacing: -0.02em;
  line-height: 1.05;
  word-break: break-word;
}

/* 13. Pie ----------------------------------------------------------------- */
.site-footer {
  padding: 28px var(--margin) 32px;
  display: flex;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
  font-size: var(--fs-meta);
  color: var(--ink-2);
}
.site-footer a:hover { color: var(--ink); }

/* 14. Movimiento ---------------------------------------------------------- */
.reveal {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease);
}
.reveal.is-in { opacity: 1; transform: none; }

/* Entrada de la home (una vez por sesión; ver assets/js/head.js)
   a · Exposición: la obra aparece desde una sobreexposición blanca y desenfocada
   b · Apertura:   la imagen se abre desde una línea horizontal
   c · Nombre:     el nombre sobre el papel y la obra detrás, al retirarse
   d · Luces:      el nombre sobre el papel; al desvanecerse, la obra se descubre
                   de arriba abajo, como si se encendieran los fluorescentes del techo.
   Ninguna variante cambia el tamaño de la imagen: solo luz, opacidad y recorte. */
html.entrance .site-header,
html.entrance .home-hero__caption { animation: intro-fade 900ms var(--ease) var(--intro-late, 1300ms) both; }
/* durante la entrada el fundido normal de carga no interviene (lo hace el efecto) */
html.entrance .home-hero img { transition: none; }

html.entrance-a .home-hero img {
  animation: intro-expose 1900ms cubic-bezier(0.3, 0.1, 0.2, 1) both paused;
}
html.entrance-a .home-hero img.is-loaded { animation-play-state: running; }

html.entrance-b .home-hero .media { animation: intro-open 1500ms cubic-bezier(0.7, 0, 0.2, 1) both paused; }
html.entrance-b .home-hero .media.is-loaded { animation-play-state: running; }
html.entrance-b { --intro-late: 1200ms; }

html.entrance-c { --intro-late: 2000ms; }
html.entrance-c body::after {
  content: "Rubén M. Riera";
  position: fixed;
  inset: 0;
  z-index: 300;
  display: grid;
  place-items: center;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 1rem;
  font-weight: 500;
  letter-spacing: 0.01em;
  animation: intro-veil 2300ms var(--ease) both;
  pointer-events: none;
}

html.entrance-d { --intro-late: 2800ms; }
html.entrance-d body::after {
  content: "Rubén M. Riera";
  position: fixed;
  inset: 0;
  z-index: 300;
  display: grid;
  place-items: center;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 1rem;
  font-weight: 500;
  letter-spacing: 0.01em;
  animation: intro-veil-d 1800ms linear both;
  pointer-events: none;
}
/* Velo del color del papel, opaco: tras el nombre no se ve nada de la obra.
   La luz entra desde arriba (los fluorescentes) y va descubriendo hacia abajo. */
html.entrance-d .home-hero .media::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background: linear-gradient(to bottom,
    rgba(248, 247, 244, 0) 0%, rgba(248, 247, 244, 0) 55%,
    var(--paper) 66.7%, var(--paper) 100%);
  background-size: 100% 300%;
  background-position: 0 100%;
  animation: intro-lights 2600ms cubic-bezier(0.3, 0.05, 0.3, 1) 950ms both paused;
}
html.entrance-d .home-hero .media.is-loaded::after { animation-play-state: running; }
/* lo recién iluminado está algo más claro y se asienta (sin desenfoque ni destellos) */
html.entrance-d .home-hero img {
  animation: intro-exposure 2800ms var(--ease) 950ms both paused;
}
html.entrance-d .home-hero img.is-loaded { animation-play-state: running; }

@keyframes intro-fade { from { opacity: 0; } to { opacity: 1; } }
@keyframes intro-expose {
  0%   { opacity: 0; filter: blur(30px) brightness(2.3) saturate(0); }
  30%  { opacity: 1; }
  100% { opacity: 1; filter: blur(0) brightness(1) saturate(1); }
}
@keyframes intro-open {
  0%   { clip-path: inset(49.7% 0 49.7% 0); }
  25%  { clip-path: inset(49.7% 0 49.7% 0); }
  100% { clip-path: inset(0 0 0 0); }
}
@keyframes intro-veil {
  0%, 40% { opacity: 1; }
  100%    { opacity: 0; visibility: hidden; }
}
/* el nombre se desvanece sobre el papel; luego el velo se retira sin que cambie nada */
@keyframes intro-veil-d {
  0%, 30% { color: var(--ink); opacity: 1; }
  52%     { color: transparent; opacity: 1; }
  56%     { color: transparent; opacity: 0; visibility: hidden; }
  100%    { color: transparent; opacity: 0; visibility: hidden; }
}
@keyframes intro-lights {
  from { background-position: 0 100%; }
  to   { background-position: 0 0; }
}
@keyframes intro-exposure {
  from { filter: brightness(1.18) saturate(0.85); }
  to   { filter: brightness(1) saturate(1); }
}

.is-static .reveal,
.is-static .media img { opacity: 1; transform: none; transition: none; }

@view-transition { navigation: auto; }
::view-transition-old(root),
::view-transition-new(root) { animation-duration: 380ms; animation-timing-function: var(--ease); }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    transition-duration: 1ms !important;
    animation-duration: 1ms !important;
  }
  .reveal { transform: none; }
}

/* ==========================================================================
   Responsive
   ========================================================================== */

/* Portátil / tablet horizontal */
@media (max-width: 1100px) {
  .meta { grid-column: 1 / span 4; }
  .text, .quote--long, .extras, .info-bio { grid-column: 5 / -1; }
  .quote { grid-column: 2 / span 10; }
  .cv, .press__groups { grid-template-columns: minmax(0, 1fr); }
  .work-index .index-list { grid-column: 1 / -1; }
  .index-preview { display: none; }
}

/* Tablet vertical */
@media (max-width: 860px) {
  :root { --header-h: 58px; }

  .grid { grid-template-columns: repeat(6, minmax(0, 1fr)); }

  .page-head__title { grid-column: 1 / -1; }
  .page-head__side { grid-column: 1 / -1; justify-content: space-between; margin-top: 18px; }

  .project-head__title { grid-column: 1 / span 5; }
  .project-head__year { grid-column: 6 / -1; }

  .home-selection, .work-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }

  .home-index__head, .home-index__list { grid-column: 1 / -1; }
  .home-about__intro, .home-about__body { grid-column: 1 / -1; }
  .home-about__intro { margin-bottom: 14px; color: var(--ink-2); }
  .home-index__head { margin-bottom: 18px; }

  .row--lead, .row--wide-a, .row--wide-b, .row--wide-c,
  .row--pair, .row--trio { --col: 1 / -1; }
  .row--pair-p { --col: 1 / -1; }
  .row--single-a { --col: 1 / span 4; }
  .row--single-b { --col: 3 / -1; }
  .row--single-c { --col: 2 / span 4; }
  .row--lead.is-portrait { --col: 2 / span 4; }

  .intro { row-gap: var(--space-s); }
  .intro--meta-only .meta { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .meta { grid-column: 1 / -1; position: static; order: 2; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); column-gap: var(--gutter); }
  .meta__row:nth-last-child(2) { border-bottom: 1px solid var(--line); }
  .meta__row:last-child:nth-child(odd) { grid-column: 1 / -1; }
  .text, .quote, .quote--long, .extras, .info-bio, .video { grid-column: 1 / -1; }

  .pager__prev { grid-column: 1 / span 3; }
  .pager__next { grid-column: 4 / -1; }
  .pager__all { grid-column: 1 / -1; order: 3; text-align: left; }

  .info-head__label, .info-statement,
  .info-figure, .cv, .press > .section-label, .press__groups,
  .contact > .section-label, .contact__mail { grid-column: 1 / -1; }
  .info-figure { grid-row: auto; width: 62%; }
  .contact__mail { margin-top: 12px; }

  .index-list--full .index-row { grid-template-columns: 3.6em minmax(0, 1fr) minmax(0, 0.8fr); }
}

/* Móvil */
@media (max-width: 600px) {
  :root {
    --margin: 16px;
    --gutter: 10px;
    --header-h: 54px;
    --space-m: 56px;
    --space-l: 96px;
  }
  body { font-size: 0.9375rem; }
  .site-header { font-size: 0.9375rem; }
  .site-nav { gap: 16px; }

  /* hero: la obra a sangre, pie debajo */
  .home-hero { padding: 8px 0 0; }
  .home-hero__figure { width: 100%; }
  .home-hero__caption { padding: 0 var(--margin); flex-direction: column; gap: 2px; }
  .home-selection { padding-top: var(--space-m); row-gap: var(--space-m); }

  .home-selection, .work-grid { grid-template-columns: minmax(0, 1fr); row-gap: 48px; }

  .row { flex-wrap: wrap; }
  .row.is-one,
  .row--pair, .row--pair-p, .row--trio { width: auto; max-width: none; justify-self: stretch; }
  .row--lead, .row--wide-a, .row--wide-b, .row--wide-c, .row--trio {
    margin-inline: calc(var(--margin) * -1);
  }
  .row--trio, .row--pair { row-gap: var(--gutter); }
  .row--trio > .frame, .row--pair > .frame { flex-basis: 100%; max-width: none; }
  .row--lead > .caption, .row--wide-a > .caption, .row--wide-b > .caption,
  .row--wide-c > .caption, .row--trio > .caption, .row--pair > .caption { padding-inline: var(--margin); }
  .row--pair { margin-inline: calc(var(--margin) * -1); }
  .intro--meta-only .meta { grid-template-columns: minmax(0, 1fr); }
  .row--pair-p { gap: var(--gutter); flex-wrap: nowrap; }
  .row--single-a, .row--lead.is-portrait { --col: 1 / span 5; }
  .row--single-b { --col: 2 / -1; }
  .row--single-c { --col: 1 / -1; }
  .set > .caption { grid-column: 1 / -1; }

  .meta { grid-template-columns: minmax(0, 1fr); }
  .meta__row:nth-last-child(2) { border-bottom: 0; }

  .text p + p { text-indent: 1.2em; }

  .quote { font-size: 1.35rem; }

  .sequence__item { height: auto; width: 88vw; }
  .sequence__item .media { width: 100%; height: auto; }
  .sequence__track { scroll-snap-type: x mandatory; }

  .pager__thumb .media { height: 64px; }

  .index-preview { display: none; }
  .index-row { grid-template-columns: 3.2em minmax(0, 1fr); }
  .index-row__extra { display: none; }
  .index-list--full .index-row { grid-template-columns: 3.2em minmax(0, 1fr); }

  .lightbox__stage { padding: 0; }
  /* en móvil las flechas quedan sobre la imagen: pequeño disco de papel para leerlas */
  .lightbox__hit--prev { padding-left: 6px; }
  .lightbox__hit--next { padding-right: 6px; }
  .lightbox__arrow {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    color: var(--ink);
    background: color-mix(in srgb, var(--paper) 84%, transparent);
  }
  .lightbox__arrow svg { width: 22px; height: 22px; stroke-width: 1.4; }
  .info-figure { width: 78%; }

  .doc-list li { flex-direction: column; gap: 4px; }
}

/* Pantallas grandes */
@media (min-width: 1680px) {
  :root { --fs-ui: 1rem; --fs-meta: 0.875rem; --fs-caption: 0.9375rem; }
  body { font-size: 1rem; }
}

@media (hover: none) {
  .index-preview { display: none; }
}