/* ==========================================================================
   Florentino Fernández Riverola
   Hoja de estilo principal — sin frameworks, sin JavaScript.
   ========================================================================== */

:root {
  color-scheme: light dark;

  --font-sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-serif: "Iowan Old Style", "Palatino Linotype", Palatino, "Book Antiqua", Georgia, serif;

  --bg: #f7f6f3;
  --surface: #fffdfa;
  --surface-2: #efece5;
  --text: #1d2025;
  --muted: #5d6470;
  --border: #ddd8ce;
  --accent: #2f4a8a;
  --accent-strong: #22386c;
  --accent-soft: #e6ebf7;
  --on-accent: #ffffff;
  --focus: #b45309;

  --radius: 14px;
  --radius-sm: 8px;
  --shadow: 0 1px 2px rgb(0 0 0 / 0.06), 0 10px 30px rgb(0 0 0 / 0.05);
  --wrap: 1080px;
  --prose: 72ch;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1218;
    --surface: #151a22;
    --surface-2: #1c2331;
    --text: #e7e9ee;
    --muted: #9aa4b4;
    --border: #293141;
    --accent: #9db4ff;
    --accent-strong: #c3d1ff;
    --accent-soft: #1b2745;
    --on-accent: #10141c;
    --focus: #f2b45c;
    --shadow: 0 1px 2px rgb(0 0 0 / 0.4), 0 10px 30px rgb(0 0 0 / 0.3);
  }
}

/* Reset mínimo ------------------------------------------------------------- */

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.65;
  text-rendering: optimizeLegibility;
}

img {
  max-width: 100%;
  height: auto;
}

a {
  color: var(--accent-strong);
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.18em;
}

a:hover {
  color: var(--accent);
}

:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 3px;
  border-radius: 3px;
}

::selection {
  background: var(--accent);
  color: var(--on-accent);
}

/* Utilidades --------------------------------------------------------------- */

.wrap {
  width: min(100% - 2rem, var(--wrap));
  margin-inline: auto;
}

.skip-link {
  position: absolute;
  top: -4rem;
  left: 1rem;
  z-index: 100;
  padding: 0.6rem 1rem;
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
  text-decoration: none;
  transition: top 0.15s ease;
}

.skip-link:focus {
  top: 0;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--bg);
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(10px);
}

.header-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 1.25rem;
  padding: 0.85rem 0;
}

.brand {
  display: flex;
  flex-direction: column;
  margin-right: auto;
  color: var(--text);
  text-decoration: none;
  line-height: 1.2;
}

.brand-name {
  font-family: var(--font-serif);
  font-size: 1.08rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.brand-role {
  margin-top: 0.15rem;
  color: var(--muted);
  font-size: 0.76rem;
}

.main-nav ul {
  display: flex;
  flex-wrap: wrap;
  gap: 0.15rem 0.25rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.main-nav a {
  display: block;
  padding: 0.35rem 0.65rem;
  border-radius: 999px;
  color: var(--text);
  font-size: 0.9rem;
  text-decoration: none;
}

.main-nav a:hover {
  background: var(--surface-2);
  color: var(--text);
}

.main-nav a[aria-current] {
  background: var(--accent-soft);
  color: var(--accent-strong);
  font-weight: 600;
}

.lang-switch {
  padding: 0.28rem 0.65rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--muted);
  font-size: 0.8rem;
  text-decoration: none;
}

.lang-switch:hover {
  border-color: var(--accent);
  color: var(--accent-strong);
}

/* Navegación de sección ---------------------------------------------------- */

.section-nav {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}

.section-nav ul {
  display: flex;
  gap: 0.15rem;
  margin: 0;
  padding: 0.45rem 0;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: thin;
}

.section-nav a {
  display: block;
  padding: 0.35rem 0.7rem;
  border-radius: 999px;
  color: var(--muted);
  font-size: 0.84rem;
  text-decoration: none;
  white-space: nowrap;
}

.section-nav a:hover {
  background: var(--surface-2);
  color: var(--text);
}

.section-nav a[aria-current="page"] {
  background: var(--accent);
  color: var(--on-accent);
  font-weight: 600;
}

/* Contenido ---------------------------------------------------------------- */

main {
  flex: 1;
  padding: 1.75rem 0 4rem;
}

.breadcrumb {
  margin-bottom: 1.5rem;
}

.breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin: 0;
  padding: 0;
  list-style: none;
  color: var(--muted);
  font-size: 0.8rem;
}

.breadcrumb li + li::before {
  content: "/";
  margin-right: 0.35rem;
  color: var(--border);
}

.breadcrumb a {
  color: var(--muted);
  text-decoration: none;
}

.breadcrumb a:hover {
  color: var(--accent-strong);
  text-decoration: underline;
}

.page-header {
  margin-bottom: 2rem;
}

.page-header h1 {
  margin: 0;
  font-family: var(--font-serif);
  font-size: clamp(2rem, 1.5rem + 2vw, 2.9rem);
  font-weight: 600;
  line-height: 1.12;
  letter-spacing: -0.02em;
}

.page-header p {
  max-width: var(--prose);
  margin: 0.6rem 0 0;
  color: var(--muted);
}

.content > :first-child {
  margin-top: 0;
}

.content h2 {
  margin: 2.8rem 0 0.8rem;
  font-family: var(--font-serif);
  font-size: 1.55rem;
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.01em;
}

.content h3 {
  margin: 1.9rem 0 0.5rem;
  font-size: 1.15rem;
  line-height: 1.3;
}

.content h4 {
  margin: 1.2rem 0 0.35rem;
  font-size: 1rem;
}

.content p,
.content ul,
.content ol,
.content dl {
  max-width: var(--prose);
}

.content ul,
.content ol {
  padding-left: 1.25rem;
}

.content li + li {
  margin-top: 0.25rem;
}

/* Las listas de componentes usan gap: no deben heredar el margen de prosa. */
.content .toc li + li,
.content .profiles li + li,
.content .tag-list li + li,
.content .entries > li + li,
.content .subject-grid li + li,
.content .project-grid li + li {
  margin-top: 0;
}

.content hr {
  margin: 2.5rem 0;
  border: 0;
  border-top: 1px solid var(--border);
}

.content blockquote {
  margin: 1.5rem 0;
  padding: 0.5rem 0 0.5rem 1.2rem;
  border-left: 3px solid var(--accent);
  color: var(--muted);
}

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

.hero {
  display: grid;
  grid-template-columns: 210px minmax(0, 1fr);
  gap: 2rem 2.5rem;
  align-items: start;
  padding: 0.5rem 0 2.5rem;
}

.portrait {
  width: 210px;
  height: 210px;
  border: 5px solid var(--surface);
  border-radius: 50%;
  background: var(--surface-2);
  box-shadow: var(--shadow);
  object-fit: cover;
}

.eyebrow {
  margin: 0 0 0.45rem;
  color: var(--accent-strong);
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.hero h1 {
  margin: 0 0 0.5rem;
  font-family: var(--font-serif);
  font-size: clamp(2.1rem, 1.4rem + 2.8vw, 3.2rem);
  font-weight: 600;
  line-height: 1.08;
  letter-spacing: -0.025em;
}

.lead {
  max-width: 58ch;
  margin: 0 0 1rem;
  font-size: 1.15rem;
  line-height: 1.5;
}

.affiliations,
.profiles {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 0.9rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.affiliations {
  margin-bottom: 1.1rem;
  color: var(--muted);
  font-size: 0.9rem;
}

.affiliations a {
  color: var(--muted);
  text-decoration: none;
}

.affiliations a:hover {
  color: var(--accent-strong);
  text-decoration: underline;
}

.contact {
  margin: 0 0 1.1rem;
  color: var(--muted);
  font-size: 0.9rem;
  font-style: normal;
  line-height: 1.7;
}

.contact a {
  color: var(--accent-strong);
}

.profiles a {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.3rem 0.65rem 0.3rem 0.45rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface);
  color: var(--text);
  font-size: 0.8rem;
  text-decoration: none;
}

.profiles a:hover {
  border-color: var(--accent);
  color: var(--accent-strong);
}

.profiles img {
  width: 18px;
  height: 18px;
  object-fit: contain;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1rem;
  margin: 0 0 2.75rem;
}

.card {
  display: block;
  padding: 1.25rem 1.35rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
  color: var(--text);
  text-decoration: none;
  transition: border-color 0.15s ease, transform 0.15s ease;
}

.card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}

.card h2 {
  margin: 0 0 0.35rem;
  font-family: var(--font-serif);
  font-size: 1.2rem;
}

.card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.home-section {
  margin-top: 2.5rem;
}

.home-section > h2 {
  margin: 0 0 1rem;
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 600;
}

.news-list {
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--border);
  list-style: none;
}

.news-list li {
  display: flex;
  gap: 1rem;
  padding: 0.7rem 0;
  border-bottom: 1px solid var(--border);
}

.news-list time {
  flex: 0 0 6.5rem;
  color: var(--muted);
  font-size: 0.8rem;
  font-variant-numeric: tabular-nums;
}

.news-list a {
  text-decoration: none;
}

.news-list a:hover {
  text-decoration: underline;
}

.more-link {
  display: inline-block;
  margin-top: 0.9rem;
  font-size: 0.9rem;
  font-weight: 600;
  text-decoration: none;
}

.more-link::after {
  content: " →";
}

/* Índice / sumario --------------------------------------------------------- */

.toc {
  max-width: var(--prose);
  margin: 1.5rem 0 2.5rem;
  padding: 1rem 1.25rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
}

.toc h2 {
  margin: 0 0 0.5rem;
  color: var(--muted);
  font-family: var(--font-sans);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.toc ul {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 1.25rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.toc a {
  font-size: 0.9rem;
  text-decoration: none;
}

.toc a:hover {
  text-decoration: underline;
}

/* Fichas, entradas y listas ------------------------------------------------ */

.entries {
  display: grid;
  gap: 1rem;
  margin: 1.25rem 0 0;
  padding: 0;
  list-style: none;
}

.entries-grid {
  grid-template-columns: repeat(auto-fill, minmax(290px, 1fr));
}

/* Los grids de tarjetas usan todo el ancho disponible, no el ancho de prosa. */
.content .subject-grid,
.content .entries-grid,
.content .project-grid,
.content .tag-list,
.content .link-grid {
  max-width: none;
}

.link-grid {
  columns: 2;
  column-gap: 2.5rem;
}

.link-grid li {
  break-inside: avoid;
}

@media (max-width: 640px) {
  .link-grid {
    columns: 1;
  }
}

.banner {
  margin: 0 0 2rem;
}

.banner img {
  border-radius: var(--radius);
}

.entries > li,
.entry {
  padding: 1rem 1.2rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
}

.entry h2,
.entry h3,
.entry h4 {
  margin-top: 0;
}

.entry h4 {
  font-size: 1rem;
  line-height: 1.35;
}

.entry p:last-child {
  margin-bottom: 0;
}

.meta {
  margin: 0.4rem 0 0;
  color: var(--muted);
  font-size: 0.85rem;
}

.dl-meta {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 0.15rem 0.7rem;
  margin: 0.5rem 0 0;
  font-size: 0.85rem;
}

.dl-meta dt {
  color: var(--muted);
}

.dl-meta dd {
  margin: 0;
}

.subject-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(270px, 1fr));
  gap: 1rem;
  margin: 1.25rem 0 0;
  padding: 0;
  list-style: none;
}

.subject {
  padding: 1.05rem 1.2rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
}

.subject h2 {
  margin: 0 0 0.55rem;
  font-family: var(--font-sans);
  font-size: 1.02rem;
  font-weight: 650;
  line-height: 1.35;
}

.subject .dl-meta {
  margin-top: 0;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 1.25rem 0 0;
  padding: 0;
  list-style: none;
}

.tag-list li {
  padding: 0.35rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface);
  font-size: 0.88rem;
}

.link-list {
  margin: 1rem 0 0;
  padding-left: 1.25rem;
}

.link-list li + li {
  margin-top: 0.4rem;
}

.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1rem;
  margin: 1.25rem 0 0;
  padding: 0;
  list-style: none;
}

.project {
  padding: 1.05rem 1.2rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
}

.project img {
  display: block;
  max-height: 90px;
  margin: 0 auto 0.75rem;
  object-fit: contain;
}

.project h3 {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 0.98rem;
  line-height: 1.35;
  text-align: center;
}

.project a {
  text-decoration: none;
}

/* Publicaciones ------------------------------------------------------------ */

.pub-section {
  margin-top: 2.75rem;
}

.pub-year {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin: 2rem 0 0.6rem;
  color: var(--accent-strong);
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-weight: 600;
}

.pub-year::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--border);
}

.pub-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.pub-list li {
  position: relative;
  max-width: 80ch;
  padding: 0.55rem 0 0.55rem 1.05rem;
  border-bottom: 1px solid var(--border);
  font-size: 0.91rem;
  line-height: 1.55;
  overflow-wrap: anywhere;
}

.pub-list li:last-child {
  border-bottom: 0;
}

.pub-list li::before {
  content: "";
  position: absolute;
  top: 1.05rem;
  left: 0;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--accent);
}

.pub-list img {
  display: inline-block;
  max-height: 14px;
  margin-left: 0.25rem;
  vertical-align: middle;
}

.pub-list li > ul {
  margin: 0.35rem 0 0;
  padding-left: 1rem;
}

/* Noticias ----------------------------------------------------------------- */

.news-year {
  margin: 2.5rem 0 1rem;
  font-family: var(--font-serif);
  font-size: 1.35rem;
  font-weight: 600;
}

.news-item {
  max-width: 78ch;
  margin: 0 0 1rem;
  padding: 1.05rem 1.25rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
}

.news-item time {
  color: var(--muted);
  font-size: 0.8rem;
  font-variant-numeric: tabular-nums;
}

.news-item h2,
.news-item h3 {
  margin: 0.2rem 0 0.5rem;
  font-family: var(--font-serif);
  font-size: 1.2rem;
  line-height: 1.3;
}

.news-body p {
  margin: 0.5rem 0;
}

.news-body p:last-child {
  margin-bottom: 0;
}

/* Tablas ------------------------------------------------------------------- */

.table-wrap {
  margin: 1.5rem 0 2rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  overflow-x: auto;
}

.schedule {
  width: 100%;
  min-width: 720px;
  border-collapse: collapse;
  font-size: 0.78rem;
}

.schedule caption {
  padding: 0.85rem 1rem;
  color: var(--text);
  font-weight: 600;
  text-align: left;
}

.schedule th,
.schedule td {
  padding: 0.3rem 0.35rem;
  border: 1px solid var(--border);
  text-align: center;
  vertical-align: middle;
}

.schedule thead th {
  background: var(--surface-2);
  font-weight: 650;
}

.schedule tbody th {
  background: var(--surface-2);
  white-space: nowrap;
  font-weight: 500;
}

.schedule .slot {
  background: var(--accent-soft);
  color: var(--accent-strong);
  font-weight: 600;
}

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

.site-footer {
  padding: 1.5rem 0;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.82rem;
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.4rem 1.5rem;
}

.footer-inner p {
  margin: 0;
}

.footer-inner a {
  color: var(--muted);
}

/* Adaptación a pantallas pequeñas ----------------------------------------- */

@media (max-width: 760px) {
  .hero {
    grid-template-columns: 1fr;
    gap: 1.25rem;
    padding-bottom: 2rem;
  }

  .portrait {
    width: 150px;
    height: 150px;
  }

  .header-inner {
    align-items: flex-start;
  }

  .brand {
    flex-basis: 100%;
  }

  .main-nav {
    flex: 1 1 auto;
  }

  .section-nav ul {
    flex-wrap: wrap;
    overflow-x: visible;
  }

  .section-nav a {
    white-space: normal;
  }

  .news-list li {
    flex-direction: column;
    gap: 0.1rem;
  }

  main {
    padding-top: 1.25rem;
  }
}

@media (max-width: 420px) {
  .main-nav a {
    padding-inline: 0.5rem;
  }

  .brand-role {
    font-size: 0.72rem;
  }
}

/* Accesibilidad / preferencias --------------------------------------------- */

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}

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

@media print {
  :root {
    --bg: #ffffff;
    --surface: #ffffff;
    --text: #000000;
    --muted: #333333;
    --border: #bbbbbb;
    --accent: #000000;
    --accent-strong: #000000;
    --accent-soft: #eeeeee;
    --on-accent: #ffffff;
  }

  body {
    font-size: 10.5pt;
    line-height: 1.4;
  }

  .site-header,
  .section-nav,
  .breadcrumb,
  .skip-link,
  .profiles,
  .site-footer,
  .toc,
  .more-link {
    display: none !important;
  }

  main {
    padding: 0;
  }

  .wrap {
    width: 100%;
  }

  a {
    color: #000;
    text-decoration: none;
  }

  .pub-list li,
  .entry,
  .news-item,
  .subject,
  .project {
    break-inside: avoid;
    border-color: #bbb;
    box-shadow: none;
  }

  .pub-list li::before {
    background: #000;
  }
}