/* ==========================================================
   Mente — hoja de estilos
   Paleta: papel cálido + tinta profunda + verde pino apagado
   ========================================================== */

:root{
  --paper: #F3D9F6;
  --paper-raised: #FDF6FE;
  --ink: #2E1F35;
  --ink-soft: #6B547340;
  --ink-soft-solid: #6B5473;
  --pine: #8A4F9C;
  --pine-tint: #E9CFEE;
  --line: #E0C0E6;
  --plum: #6B3F76;
  --max-w: 1080px;

  --serif: "Fraunces", "Iowan Old Style", ui-serif, Georgia, serif;
  --sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

*{ box-sizing: border-box; }

html{ scroll-behavior: smooth; }

body{
  margin:0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

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

.wrap{
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- Header ---------- */
header{
  padding: 28px 0 20px;
  border-bottom: 1px solid var(--line);
}
header .wrap{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap: 20px;
}
.logo{
  font-family: var(--serif);
  font-weight: 600;
  font-size: 1.45rem;
  letter-spacing: -0.01em;
  display:flex;
  align-items:center;
  gap:10px;
}
.logo img{
  width:64px; height:64px;
  border-radius:8px;
  display:inline-block;
}
nav ul{
  list-style:none;
  display:flex;
  gap: 28px;
  margin:0; padding:0;
  font-size: 0.94rem;
}
nav a{
  color: var(--ink-soft-solid);
  border-bottom: 1px solid transparent;
  padding-bottom: 3px;
  transition: color .15s, border-color .15s;
}
nav a:hover{ color: var(--pine); border-color: var(--pine); }

/* ---------- Hero ---------- */
.hero{
  padding: 76px 0 56px;
  border-bottom: 1px solid var(--line);
}
.hero .eyebrow{
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--pine);
  margin-bottom: 14px;
  font-weight: 600;
}
.hero h1{
  font-family: var(--serif);
  font-size: clamp(2.1rem, 5vw, 3.4rem);
  font-weight: 560;
  line-height: 1.08;
  letter-spacing: -0.015em;
  margin: 0 0 20px;
  max-width: 14ch;
}
.hero p{
  font-size: 1.08rem;
  color: var(--ink-soft-solid);
  max-width: 46ch;
  margin: 0;
}

/* ---------- Article grid ---------- */
.section-title{
  font-family: var(--serif);
  font-size: 1.5rem;
  font-weight: 600;
  margin: 56px 0 28px;
}
.grid{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px 26px;
  padding-bottom: 70px;
}
@media (max-width: 880px){
  .grid{ grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 620px){
  .grid{ grid-template-columns: 1fr; }
}

.card{
  position: relative;
  background: var(--paper-raised);
  border: 1px solid var(--line);
  border-radius: 4px;
  overflow: hidden;
  padding-left: 3px; /* room for the spine */
  transition: transform .18s ease, box-shadow .18s ease;
}
.card::before{
  /* the "spine": a marginalia mark, this site's signature element */
  content:"";
  position:absolute;
  left:0; top:0; bottom:0;
  width:3px;
  background: var(--pine);
  opacity: .55;
  transition: opacity .18s ease;
}
.card:hover{
  transform: translateY(-3px);
  box-shadow: 0 10px 24px -14px rgba(31,29,43,0.28);
}
.card:hover::before{ opacity: 1; }

.card .thumb{
  aspect-ratio: 16/10;
  overflow: hidden;
  background: var(--pine-tint);
}
.card .thumb img{
  width:100%; height:100%; object-fit: cover;
}
.card-body{ padding: 20px 22px 24px; }

.tag{
  display:inline-block;
  font-size: 0.72rem;
  letter-spacing: .04em;
  text-transform: uppercase;
  font-weight: 700;
  color: var(--pine);
  background: var(--pine-tint);
  padding: 4px 9px;
  border-radius: 3px;
  transform: rotate(-0.6deg);
  margin-bottom: 12px;
}
.card h3{
  font-family: var(--serif);
  font-size: 1.22rem;
  line-height: 1.28;
  font-weight: 600;
  margin: 0 0 10px;
}
.card h3 a{
  background-image: linear-gradient(var(--pine), var(--pine));
  background-size: 0% 1px;
  background-position: left bottom;
  background-repeat: no-repeat;
  transition: background-size .2s ease;
}
.card h3 a:hover{ background-size: 100% 1px; }

.card .excerpt{
  font-size: 0.93rem;
  color: var(--ink-soft-solid);
  margin: 0 0 14px;
}
.meta{
  font-size: 0.8rem;
  color: var(--ink-soft-solid);
  opacity: .85;
  display:flex;
  gap: 8px;
  align-items:center;
}

.empty-state{
  padding: 40px 0 80px;
  color: var(--ink-soft-solid);
  font-size: 0.98rem;
}

/* ---------- Article page ---------- */
body.article-page{
  background: #FFFFFF;
}
.article-header{
  padding: 56px 0 30px;
  border-bottom: 1px solid var(--line);
}
.back-link{
  font-size: 0.88rem;
  color: var(--pine);
  font-weight: 600;
  display:inline-flex;
  align-items:center;
  gap:6px;
  margin-bottom: 24px;
}
.article-header h1{
  font-family: var(--serif);
  font-size: clamp(1.9rem, 4vw, 2.7rem);
  line-height: 1.14;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin: 0 0 18px;
}
.article-meta{
  font-size: 0.9rem;
  color: var(--ink-soft-solid);
}
.article-hero-img{
  margin: 34px 0 0;
  border-radius: 4px;
  overflow:hidden;
  max-height: 420px;
  display:flex;
  align-items:center;
  justify-content:center;
  background: var(--pine-tint);
}
.article-hero-img img{ max-width:100%; max-height:420px; width:auto; height:auto; object-fit:contain; }

.article-body{
  max-width: 700px;
  margin: 0 auto;
  padding: 44px 0 90px;
  font-size: 1.08rem;
}
.article-body p{ margin: 0 0 22px; }
.article-body h2{
  font-family: var(--serif);
  font-size: 1.5rem;
  margin: 40px 0 16px;
}
.article-body blockquote{
  font-family: var(--serif);
  font-style: italic;
  font-size: 1.2rem;
  color: var(--plum);
  border-left: 3px solid var(--pine);
  margin: 30px 0;
  padding: 4px 0 4px 20px;
}

/* ---------- Conferencias ---------- */
.conf-hero{
  padding: 56px 0 10px;
  border-bottom: 1px solid var(--line);
}
.conf-hero .eyebrow{
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--pine);
  margin-bottom: 14px;
  font-weight: 600;
}
.conf-hero h1{
  font-family: var(--serif);
  font-size: clamp(2rem, 4.6vw, 3rem);
  font-weight: 560;
  line-height: 1.1;
  letter-spacing: -0.015em;
  margin: 0 0 14px;
}
.conf-hero .sub{
  color: var(--ink-soft-solid);
  max-width: 56ch;
  margin: 0 0 44px;
  font-size: 1.05rem;
}

.conf-layout{
  display:grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 46px;
  align-items: start;
  padding-bottom: 60px;
}
@media (max-width: 820px){
  .conf-layout{ grid-template-columns: 1fr; }
}

.poster-frame{
  background: var(--paper-raised);
  border: 1px solid var(--line);
  padding: 14px;
  border-radius: 4px;
  transform: rotate(-1.2deg);
  box-shadow: 0 18px 34px -20px rgba(46,31,53,0.35);
}
.poster-frame img{ border-radius: 2px; }
.poster-caption{
  text-align:center;
  font-size: 0.82rem;
  color: var(--ink-soft-solid);
  margin-top: 10px;
  font-style: italic;
}

.programa-title{
  font-family: var(--serif);
  font-size: 1.15rem;
  font-weight: 600;
  margin: 6px 0 20px;
}
.programa-list{
  list-style:none;
  margin:0; padding:0;
  border-top: 1px solid var(--line);
}
.programa-item{
  display:grid;
  grid-template-columns: 96px 1fr;
  gap: 18px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}
.programa-item .fecha{
  font-size: 0.78rem;
  color: var(--pine);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .03em;
  line-height: 1.5;
}
.programa-item h3{
  font-family: var(--serif);
  font-size: 1.08rem;
  font-weight: 600;
  margin: 0 0 6px;
  line-height: 1.3;
}
.programa-item .ponente{
  font-size: 0.86rem;
  color: var(--ink-soft-solid);
}
.programa-item .ponente strong{ color: var(--ink); }

/* photo strip: informal "snapshots pinned to a board" */
.section-title-wrap{
  margin: 8px 0 30px;
}
.gallery-strip{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 34px 26px;
  padding-bottom: 80px;
}
@media (max-width: 780px){
  .gallery-strip{ grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 520px){
  .gallery-strip{ grid-template-columns: 1fr; }
}
.snapshot{
  background: var(--paper-raised);
  padding: 10px 10px 16px;
  border: 1px solid var(--line);
  border-radius: 3px;
  box-shadow: 0 14px 26px -18px rgba(46,31,53,0.4);
  transition: transform .18s ease;
}
.snapshot:nth-child(odd){ transform: rotate(-1.4deg); }
.snapshot:nth-child(even){ transform: rotate(1.1deg); }
.snapshot:hover{ transform: rotate(0deg) translateY(-4px); }
.snapshot .photo{
  aspect-ratio: 4/3;
  overflow:hidden;
  border-radius: 2px;
  background: var(--pine-tint);
}
.snapshot .photo img{ width:100%; height:100%; object-fit:cover; }
.snapshot figcaption{
  margin: 0;
  padding-top: 12px;
  font-family: var(--serif);
  font-size: 0.92rem;
  font-style: italic;
  color: var(--ink-soft-solid);
  text-align:center;
}

/* ---------- Category nav pills ---------- */
.cat-nav{
  display:flex;
  flex-wrap:wrap;
  gap: 10px;
  padding: 40px 0 8px;
}
.cat-nav a{
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--pine);
  background: var(--pine-tint);
  padding: 7px 14px;
  border-radius: 999px;
  transition: background .15s ease, color .15s ease;
}
.cat-nav a:hover{ background: var(--pine); color: var(--paper-raised); }

.category-section{
  padding-top: 18px;
}
.category-section .section-title{
  margin-top: 0;
  scroll-margin-top: 24px;
}

footer{
  border-top: 1px solid var(--line);
  padding: 34px 0;
}
footer .wrap{
  display:flex;
  justify-content:space-between;
  align-items:center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.85rem;
  color: var(--ink-soft-solid);
}
footer .credits{
  width:100%;
  text-align:center;
  font-size: 0.78rem;
  color: var(--ink-soft-solid);
  opacity: 0.75;
  padding-top: 14px;
  margin-top: 14px;
  border-top: 1px solid var(--line);
}

:focus-visible{
  outline: 2px solid var(--pine);
  outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce){
  *{ transition: none !important; }
}