/* ==========================================================================
   Arte+Ciencia — clon HTML estático
   Hoja de estilos compartida
   ========================================================================== */

:root{
  --color-bg: #fbfaf7;
  --color-bg-alt: #f1efe8;
  --color-ink: #1c231f;
  --color-ink-soft: #4a544d;
  --color-accent: #5c7a63;      /* verde menta oscurecido, del logo "N_LogoMenta" */
  --color-accent-soft: #a9c2ac;
  --color-accent-warm: #b5714a; /* terracota, contraste cálido */
  --color-line: #dcd6c8;
  --color-card: #ffffff;
  --font-head: "Jost", "Helvetica Neue", Arial, sans-serif;
  --font-body: "Source Serif 4", Georgia, "Times New Roman", serif;
  --font-ui: "Work Sans", "Helvetica Neue", Arial, sans-serif;
  --maxw: 1080px;
}

*{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }

body{
  margin: 0;
  background: var(--color-bg);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

a{ color: var(--color-accent); text-decoration: none; }
a:hover{ color: var(--color-accent-warm); text-decoration: underline; }

img{ max-width: 100%; display: block; }

.wrap{
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 28px;
}

/* ---------- Header / Nav ---------- */

.site-header{
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(251,250,247,0.96);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--color-line);
}

.header-inner{
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 14px 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.header-right{
  display: flex;
  align-items: center;
  gap: 18px;
}

.brand{
  display: flex;
  align-items: center;
  gap: 16px;
  color: var(--color-ink);
  white-space: nowrap;
}
.brand:hover{ text-decoration: none; }
.brand .brand-logo{
  height: 68px;
  width: auto;
  max-width: 220px;
  object-fit: contain;
  flex-shrink: 0;
}
.brand .brand-logo-unam{
  height: 56px;
  padding-left: 12px;
  border-left: 1px solid var(--color-line);
}

.header-controls{
  display: flex;
  align-items: center;
  gap: 10px;
}

.lang-toggle{
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 6px 10px;
  border: 1px solid var(--color-line);
  border-radius: 30px;
  font-family: var(--font-ui);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--color-ink-soft);
  text-decoration: none !important;
  white-space: nowrap;
}
.lang-toggle:hover{ border-color: var(--color-accent); color: var(--color-accent); }
.lang-toggle .lang-sep{ color: var(--color-line); }
.lang-toggle .lang-current{ color: var(--color-accent); }

.nav-toggle{
  display: none;
  background: none;
  border: 1px solid var(--color-line);
  border-radius: 6px;
  width: 42px; height: 38px;
  cursor: pointer;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
}
.nav-toggle span{
  display: block;
  width: 20px; height: 2px;
  background: var(--color-ink);
}

nav.primary-nav{ font-family: var(--font-ui); }
nav.primary-nav > ul{
  list-style: none;
  display: flex;
  align-items: center;
  gap: 4px;
  margin: 0; padding: 0;
  flex-wrap: wrap;
  justify-content: flex-end;
}
nav.primary-nav > ul > li{ position: relative; }

nav.primary-nav a{
  display: inline-block;
  padding: 10px 12px;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-ink);
  border-radius: 4px;
  text-decoration: none;
}
nav.primary-nav a:hover,
nav.primary-nav a[aria-current="page"]{
  color: var(--color-accent);
  background: var(--color-bg-alt);
}

.has-dropdown > button.drop-label{
  font-family: var(--font-ui);
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 10px 12px;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-ink);
  background: none;
  border: none;
  border-radius: 4px;
  cursor: pointer;
}
.has-dropdown > button.drop-label:hover{ color: var(--color-accent); background: var(--color-bg-alt); }
.has-dropdown > button.drop-label::after{
  content: "▾";
  font-size: 0.65em;
  margin-top: 1px;
}

.dropdown{
  list-style: none;
  margin: 0; padding: 8px;
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  min-width: 240px;
  background: var(--color-card);
  border: 1px solid var(--color-line);
  border-radius: 8px;
  box-shadow: 0 12px 24px rgba(28,35,31,0.08);
  opacity: 0;
  visibility: hidden;
  transform: translateY(6px);
  transition: opacity .15s ease, transform .15s ease, visibility .15s;
}
.has-dropdown:hover .dropdown,
.has-dropdown:focus-within .dropdown,
.has-dropdown.open .dropdown{
  opacity: 1; visibility: visible; transform: translateY(0);
}
.dropdown a{
  display: block;
  padding: 8px 10px;
  font-size: 0.74rem;
  white-space: nowrap;
}

/* Nested submenu (third level, e.g. Proyectos > Sin origen / Sin semilla) */
.has-subdropdown{ position: relative; }
.has-subdropdown > button.sub-label{
  font-family: var(--font-ui);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  width: 100%;
  padding: 8px 10px;
  font-size: 0.74rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-align: left;
  color: var(--color-ink);
  background: none;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  white-space: nowrap;
}
.has-subdropdown > button.sub-label:hover{ color: var(--color-accent); background: var(--color-bg-alt); }
.has-subdropdown > button.sub-label::after{
  content: "▸";
  font-size: 0.8em;
  color: var(--color-ink-soft);
}
.sub-dropdown{
  list-style: none;
  margin: 0; padding: 8px;
  position: absolute;
  top: -9px;
  left: calc(100% + 6px);
  min-width: 260px;
  background: var(--color-card);
  border: 1px solid var(--color-line);
  border-radius: 8px;
  box-shadow: 0 12px 24px rgba(28,35,31,0.08);
  opacity: 0;
  visibility: hidden;
  transform: translateX(6px);
  transition: opacity .15s ease, transform .15s ease, visibility .15s;
}
.has-subdropdown:hover .sub-dropdown,
.has-subdropdown:focus-within .sub-dropdown,
.has-subdropdown.open .sub-dropdown{
  opacity: 1; visibility: visible; transform: translateX(0);
}
.sub-dropdown a{
  display: block;
  padding: 8px 10px;
  font-size: 0.72rem;
  white-space: nowrap;
}

/* ---------- Page title band ---------- */

.page-title{
  padding: 56px 0 32px;
  border-bottom: 1px solid var(--color-line);
  background: var(--color-bg-alt);
}
.page-title h1{
  margin: 0;
  font-family: var(--font-head);
  font-weight: 300;
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--color-ink);
}
.page-title .kicker{
  display: block;
  font-family: var(--font-ui);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 8px;
}

/* ---------- Main content ---------- */

main{ padding: 48px 0 24px; }

.hero-media{
  margin: 0 0 40px;
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid var(--color-line);
}
.hero-media img{ width: 100%; }

article.entry{
  margin-bottom: 56px;
  padding-bottom: 48px;
  border-bottom: 1px solid var(--color-line);
}
article.entry:last-child{ border-bottom: none; }

article.entry h2{
  font-family: var(--font-head);
  font-weight: 500;
  font-size: 1.5rem;
  letter-spacing: 0.01em;
  color: var(--color-ink);
  margin: 0 0 4px;
}
/* Título unificado de noticias (mismo estilo que el encabezado de la sección) */
.news-title,
article.entry h2.news-title{
  font-family: var(--font-head);
  font-weight: 300;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  font-size: 1.6rem;
  line-height: 1.2;
  color: var(--color-ink);
  margin: 0 0 12px;
}
.news-title .no-caps{ text-transform: none; }
article.entry h3{
  font-family: var(--font-head);
  font-weight: 500;
  font-size: 1.15rem;
  color: var(--color-ink);
  margin: 28px 0 6px;
}
article.entry .meta{
  font-family: var(--font-ui);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-ink-soft);
  margin-bottom: 18px;
  display: block;
}

.lang-es p, .lang-es{ color: var(--color-ink); }
.lang-en{
  border-left: 3px solid var(--color-accent-soft);
  padding-left: 18px;
  margin: 18px 0 0;
  color: var(--color-ink-soft);
  font-style: italic;
}
.lang-en p{ margin: 0 0 14px; }
.lang-en:last-child p:last-child{ margin-bottom: 0; }
.lang-tag{
  font-family: var(--font-ui);
  font-style: normal;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
  display: block;
  margin-bottom: 8px;
}

.figure{
  margin: 20px 0;
}
.figure img{ border-radius: 8px; border: 1px solid var(--color-line); }
.figure figcaption{
  font-family: var(--font-ui);
  font-size: 0.8rem;
  color: var(--color-ink-soft);
  margin-top: 8px;
}

.figure-row{
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px,1fr));
  gap: 16px;
  margin: 20px 0;
  align-items: center;
}
.figure-row img{
  border-radius: 8px;
  border: 1px solid var(--color-line);
  width: 100%;
  height: auto;
  display: block;
}

.gallery{
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(170px,1fr));
  gap: 10px;
  margin: 20px 0;
  align-items: center;
}
.gallery figure{ margin: 0; }
.gallery img{
  width: 100%;
  height: auto;
  border-radius: 6px;
  border: 1px solid var(--color-line);
  transition: transform .2s ease;
}
.gallery img:hover{ transform: scale(1.04); }
.gallery figcaption{
  font-family: var(--font-ui);
  font-size: 0.68rem;
  color: var(--color-ink-soft);
  margin-top: 4px;
}

.video-embed{
  position: relative;
  width: 100%;
  padding-top: 56.25%;
  margin: 20px 0;
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid var(--color-line);
  background: #111;
}
.video-embed iframe{
  position: absolute; top:0; left:0; width:100%; height:100%; border:0;
}

/* Fachada de YouTube: miniatura + botón de play */
.yt-facade{ cursor: pointer; }
.yt-facade .yt-thumb{
  position: absolute; top:0; left:0;
  width:100%; height:100%;
  object-fit: cover;
  display: block;
}
.yt-facade .yt-play{
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%,-50%);
  width: 74px; height: 52px;
  border-radius: 12px;
  background: rgba(18,18,18,0.78);
  transition: background .15s ease;
}
.yt-facade .yt-play::before{
  content: "";
  position: absolute;
  top: 50%; left: 52%;
  transform: translate(-50%,-50%);
  border-style: solid;
  border-width: 11px 0 11px 19px;
  border-color: transparent transparent transparent #fff;
}
.yt-facade:hover .yt-play,
.yt-facade:focus-visible .yt-play{ background: #c4302b; }

.link-download{
  display: inline-block;
  margin: 6px 0 18px;
  padding: 8px 16px;
  font-family: var(--font-ui);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: #fff !important;
  background: var(--color-accent);
  border-radius: 30px;
  text-decoration: none !important;
}
.link-download:hover{ background: var(--color-accent-warm); }

.link-list{ padding-left: 0; list-style: none; }
.link-list li{ margin-bottom: 8px; word-break: break-word; font-family: var(--font-ui); font-size: 0.92rem; }

/* ---------- Books grid ---------- */

.book-grid{
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px,1fr));
  gap: 18px;
  margin: 24px 0 0;
}
.book-grid img{ border-radius: 6px; border: 1px solid var(--color-line); }

/* Libro destacado: texto a la izquierda, portada a la derecha */
.book-feature{
  display: grid;
  grid-template-columns: 1fr minmax(200px, 280px);
  gap: 30px;
  align-items: start;
  margin: 6px 0 0;
}
.book-feature .book-cover img{
  width: 100%;
  border-radius: 6px;
  border: 1px solid var(--color-line);
}
@media (max-width: 700px){
  .book-feature{ grid-template-columns: 1fr; gap: 18px; }
  .book-feature .book-cover{ max-width: 240px; }
}

/* ---------- Team / members ---------- */

.team-list{
  columns: 2;
  column-gap: 40px;
  font-family: var(--font-ui);
  font-size: 0.92rem;
  line-height: 1.9;
}
@media (max-width: 640px){ .team-list{ columns: 1; } }

.instance-list{ padding-left: 20px; }
.instance-list li{ margin-bottom: 6px; }

/* ---------- Contact cards ---------- */

.contact-grid{
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px,1fr));
  gap: 28px;
  margin: 24px 0 40px;
}
.contact-card{
  background: var(--color-card);
  border: 1px solid var(--color-line);
  border-radius: 10px;
  overflow: hidden;
}
.contact-card img{ width: 100%; aspect-ratio: 4/3; object-fit: cover; }
.contact-card .contact-body{ padding: 16px 18px; }
.contact-card h3{
  font-family: var(--font-head);
  margin: 0 0 4px;
  font-size: 1.05rem;
}
.contact-card .role{
  font-family: var(--font-ui);
  font-size: 0.78rem;
  color: var(--color-ink-soft);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 8px;
  display: block;
}
.contact-card .contact-body a{
  font-family: var(--font-ui);
  font-size: 0.68rem;
  letter-spacing: -0.01em;
  display: block;
  overflow-wrap: normal;
  word-break: normal;
  white-space: nowrap;
}
.address-block{
  font-family: var(--font-ui);
  background: var(--color-bg-alt);
  border-radius: 10px;
  padding: 24px 28px;
  margin-bottom: 24px;
}
.address-block h2{
  font-family: var(--font-head);
  font-size: 1.2rem;
  margin: 0 0 8px;
}

/* ---------- Footer ---------- */

footer.site-footer{
  border-top: 1px solid var(--color-line);
  background: var(--color-bg-alt);
  padding: 32px 0;
  font-family: var(--font-ui);
  font-size: 0.85rem;
  color: var(--color-ink-soft);
}
footer.site-footer .wrap{
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
footer.site-footer a{ color: var(--color-ink-soft); }

/* ---------- Responsive ---------- */

/* Evita desbordamiento horizontal sin romper el header sticky */
body{ max-width: 100%; }
img, iframe{ max-width: 100%; }
*{ min-width: 0; }

/* Tablet */
@media (max-width: 1024px){
  :root{ --maxw: 100%; }
  .wrap, .header-inner{ padding-left: 22px; padding-right: 22px; }
}

/* Menú colapsado (tablet y móvil) */
@media (max-width: 900px){
  .brand .brand-logo{ height: 46px; }
  .brand .brand-logo-unam{ height: 38px; padding-left: 8px; }
  .header-inner{ position: relative; }
  .nav-toggle{ display: flex; }

  /* El menú se ancla justo debajo del header, sin importar la altura del logo */
  nav.primary-nav{
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-line);
    box-shadow: 0 14px 26px rgba(28,35,31,0.10);
    display: none;
    max-height: calc(100vh - 100%);
    overflow-y: auto;
    padding: 12px 22px 22px;
  }
  nav.primary-nav.open{ display: block; }
  nav.primary-nav > ul{
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
  }
  nav.primary-nav a{ padding: 12px 10px; font-size: 0.82rem; }

  .has-dropdown > button.drop-label{
    width: 100%;
    justify-content: space-between;
    padding: 12px 10px;
    font-size: 0.82rem;
  }
  .dropdown{
    position: static;
    opacity: 1; visibility: visible; transform: none;
    box-shadow: none;
    border: none;
    min-width: 0;
    display: none;
    margin-left: 12px;
    padding: 0;
  }
  .has-dropdown.open .dropdown{ display: block; }
  .has-dropdown:hover .dropdown{ display: none; }
  .has-dropdown.open .dropdown{ display: block; }
  .dropdown a{ font-size: 0.8rem; white-space: normal; padding: 11px 10px; }

  /* Submenú anidado en línea */
  .has-subdropdown > button.sub-label{ width: 100%; padding: 11px 10px; font-size: 0.8rem; white-space: normal; }
  .sub-dropdown{
    position: static;
    opacity: 1; visibility: visible; transform: none;
    box-shadow: none;
    border: none;
    display: none;
    margin-left: 12px;
    min-width: 0;
    padding: 0;
  }
  .has-subdropdown:hover .sub-dropdown{ display: none; }
  .has-subdropdown.open .sub-dropdown{ display: block; }
  .sub-dropdown a{ white-space: normal; }
}

/* Móvil */
@media (max-width: 620px){
  body{ font-size: 16px; }
  .wrap, .header-inner{ padding-left: 16px; padding-right: 16px; }
  .header-inner{ gap: 10px; }
  .header-right{ gap: 10px; }
  .brand{ gap: 10px; }
  .brand .brand-logo{ height: 40px; max-width: 130px; }
  .brand .brand-logo-unam{ height: 33px; padding-left: 7px; }
  .lang-toggle{ padding: 5px 8px; font-size: 0.66rem; }

  main{ padding: 32px 0 16px; }
  .page-title{ padding: 40px 0 24px; }
  article.entry{ margin-bottom: 40px; padding-bottom: 34px; }
  article.entry h2, .news-title, article.entry h2.news-title{ font-size: 1.3rem; }
  article.entry h3{ font-size: 1.05rem; }

  .figure-row, .contact-grid{ grid-template-columns: 1fr; }
  .gallery{ grid-template-columns: repeat(auto-fill, minmax(120px,1fr)); }
  .book-grid{ grid-template-columns: repeat(auto-fill, minmax(120px,1fr)); }

  .lang-en{ padding-left: 12px; }
  footer.site-footer .wrap{ flex-direction: column; align-items: flex-start; gap: 6px; }
}

/* Móviles muy angostos */
@media (max-width: 380px){
  .brand .brand-logo{ height: 34px; max-width: 108px; }
  .brand .brand-logo-unam{ height: 28px; }
  .lang-toggle{ padding: 4px 7px; font-size: 0.62rem; }
}