:root{
  --bg:#0b0f17;
  --panel:#0f1626;
  --text:#eaf2ff;
  --muted:rgba(234,242,255,.72);
  --stroke:rgba(255,255,255,.14);
  --brand:#4FB3FF;
  --shadow:0 18px 60px rgba(0,0,0,.55);

  /* Layout defaults (se sobreescriben con CSS variables desde JS / data-attrs) */
  --gap:14px;
  --radius:14px;
  --cols-desktop:3;
  --cols-tablet:2;
  --cols-mobile:1;
  --cardShadow:none;
}

*{ box-sizing:border-box; }
html,body{ height:100%; }
body{
  margin:0;
  font-family: system-ui, Segoe UI, Roboto, Arial, sans-serif;
  background:
    radial-gradient(900px 520px at 20% 10%, rgba(79,179,255,.18), transparent 60%),
    radial-gradient(900px 520px at 90% 30%, rgba(255,212,59,.10), transparent 60%),
    linear-gradient(180deg, #070a10, var(--bg));
  color:var(--text);
  overflow-x:hidden;
}

.wrap{
  width:min(1100px, calc(100% - 28px));
  margin:0 auto;
}

.top{ padding:42px 0 18px; }
.title{
  margin:0;
  text-align:center;
  letter-spacing:.12em;
  font-weight:800;
  text-transform:uppercase;
}

.tabs{
  display:flex;
  gap:18px;
  justify-content:center;
  align-items:center;
  margin-top:18px;
  flex-wrap:wrap;
}

.tab{
  color:var(--muted);
  text-decoration:none;
  padding:10px 12px;
  border-bottom:2px solid transparent;
  transition: color .2s ease, border-color .2s ease;
  font-size:14px;
}
.tab:hover{ color:var(--text); }
.tab.is-active{
  color:var(--brand);
  border-color:var(--brand);
}

.gallery{ margin:18px 0 50px; }

/* =========================================================
   MODE: masonry via columns (responsive cols)
   ========================================================= */
body[data-mode="masonry"] .gallery{
  column-gap: var(--gap);
  columns: var(--cols-desktop);
}
@media (max-width: 900px){
  body[data-mode="masonry"] .gallery{ columns: var(--cols-tablet); }
}
@media (max-width: 560px){
  body[data-mode="masonry"] .gallery{ columns: var(--cols-mobile); }
}

body[data-mode="masonry"] .card{
  break-inside: avoid;
  margin: 0 0 var(--gap);
  display:block;
}

/* =========================================================
   MODE: grid (responsive cols + spans)
   ========================================================= */
body[data-mode="grid"] .gallery{
  display:grid;
  gap: var(--gap);
  grid-template-columns: repeat(var(--cols-desktop), minmax(0, 1fr));
  grid-auto-rows: 180px;
}

@media (max-width: 900px){
  body[data-mode="grid"] .gallery{
    grid-template-columns: repeat(var(--cols-tablet), minmax(0, 1fr));
  }
}
@media (max-width: 560px){
  body[data-mode="grid"] .gallery{
    grid-template-columns: repeat(var(--cols-mobile), minmax(0, 1fr));
    grid-auto-rows: 170px;
  }
}

/* Evita “span 2” cuando solo hay 1 columna (móvil) */
@media (max-width: 560px){
  body[data-mode="grid"] .card[data-span="2x1"],
  body[data-mode="grid"] .card[data-span="2x2"]{
    grid-column: auto !important;
  }
  body[data-mode="grid"] .card[data-span="1x2"],
  body[data-mode="grid"] .card[data-span="2x2"]{
    grid-row: auto !important;
  }
}

body[data-mode="grid"] .card{ height:100%; }
body[data-mode="grid"] .card__btn{ height:100%; }
body[data-mode="grid"] .card__img{
  height:100%;
  object-fit:cover;
}

body[data-mode="grid"] .card[data-span="2x1"]{ grid-column: span 2; }
body[data-mode="grid"] .card[data-span="1x2"]{ grid-row: span 2; }
body[data-mode="grid"] .card[data-span="2x2"]{ grid-column: span 2; grid-row: span 2; }

/* =========================================================
   Card UI
   ========================================================= */
.card{
  border-radius: var(--radius);
  overflow:hidden;
  border:1px solid var(--stroke);
  background: rgba(15,22,38,.55);
  box-shadow: var(--cardShadow);
  position:relative;
  transform: translateZ(0);
}

.card__btn{
  all:unset;
  display:block;
  cursor:pointer;
  width:100%;
  position:relative;
  outline:none;
}
.card__btn:focus-visible{
  box-shadow: 0 0 0 3px rgba(79,179,255,.35);
  border-radius: calc(var(--radius) - 2px);
}

.card__img{
  width:100%;
  height:auto;
  display:block;
  transform: translateZ(0);
  transition: transform .35s ease;
}

/* Hover effects controlados por data-hover */
body[data-hover="zoom"] .card:hover .card__img{ transform: scale(1.06); }
body[data-hover="tilt"] .card:hover .card__img{ transform: scale(1.04) rotate(-.6deg); }
body[data-hover="none"] .card__img{ transition:none; }

/* Overlay solo visual: NO debe bloquear el click (arreglo crítico) */
.card__overlay{
  position:absolute;
  inset:0;
  display:flex;
  align-items:flex-end;
  padding:14px;
  background: linear-gradient(180deg, transparent 40%, rgba(0,0,0,.75));
  opacity:0;
  transition: opacity .22s ease;
  pointer-events:none; /* IMPORTANTE: permite click al botón/imagen */
}
.card:hover .card__overlay{ opacity:1; }

.card__overlayInner{ width:100%; }
.card__cap{
  font-weight:800;
  letter-spacing:.03em;
  margin-bottom:6px;
}
.card__desc{
  color:rgba(255,255,255,.86);
  font-size:13px;
  line-height:1.35;
  max-height: 4.2em;
  overflow:hidden;
}

/* =========================================================
   Shuffle animation (la activa el JS con .gallery.is-shuffling)
   ========================================================= */
.gallery.is-shuffling .card{
  animation: galShuffleIn 520ms ease both;
}
@keyframes galShuffleIn{
  from { transform: translateY(10px) scale(.985); opacity:0; }
  to   { transform: translateY(0)   scale(1);     opacity:1; }
}

/* =========================================================
   Lightbox (JS alterna .is-open)
   - Arreglo: ahora centra, es scrollable en móvil y no se corta.
   ========================================================= */
.lb{
  position:fixed;
  inset:0;
  display:none;
  z-index:9999;
}
.lb.is-open{
  display:grid;
  place-items:center;
}

/* Backdrop */
.lb__backdrop{
  position:absolute;
  inset:0;
  background: rgba(0,0,0,.70);
  backdrop-filter: blur(8px);
}

/* Panel responsive + scroll seguro */
.lb__panel{
  position:relative;
  width:min(980px, calc(100% - 22px));
  max-height: calc(100vh - 26px);
  margin: 0 auto;
  border:1px solid var(--stroke);
  border-radius: 18px;
  background: rgba(15,22,38,.92);
  box-shadow: var(--shadow);
  overflow:hidden; /* contenemos bordes */
  z-index:1;       /* sobre backdrop */
  display:flex;
  flex-direction:column;
}

/* Botón cerrar */
.lb__x{
  position:absolute;
  top:10px; right:10px;
  width:40px; height:40px;
  border-radius: 12px;
  border:1px solid var(--stroke);
  background: rgba(0,0,0,.35);
  color:var(--text);
  font-size:26px;
  line-height:1;
  cursor:pointer;
  z-index:2;
}
.lb__x:hover{ background: rgba(0,0,0,.5); }

/* Media: mantiene proporción y evita overflow */
.lb__media{
  background:#000;
  display:flex;
  justify-content:center;
  align-items:center;
  padding: 0;
  flex: 1 1 auto;
  min-height: 220px;
  max-height: 72vh;
}
.lb__media img{
  max-width:100%;
  max-height:72vh;
  display:block;
}

/* Meta: scroll interno si la descripción es larga */
.lb__meta{
  padding:14px 16px 18px;
  border-top:1px solid rgba(255,255,255,.10);
  overflow:auto;
  max-height: 30vh;
}
.lb__cap{
  font-weight:900;
  letter-spacing:.03em;
  margin-bottom:6px;
}
.lb__desc{
  color:var(--muted);
  line-height:1.45;
  font-size:14px;
  white-space:pre-wrap; /* respeta saltos de línea sin usar <br> */
}

/* =========================================================
   Entrance animations (simple)
   ========================================================= */
.reveal{
  opacity:0;
  transform: translateY(14px);
  transition: .55s ease;
}
.reveal.is-in{
  opacity:1;
  transform:none;
}

/* Responsive minor */
@media (max-width: 900px){
  .top{ padding:34px 0 10px; }
  .lb__panel{ max-height: calc(100vh - 18px); }
  .lb__media{ max-height: 66vh; }
  .lb__meta{ max-height: 34vh; }
}

@media (max-width: 560px){
  .tab{ font-size:13px; padding:9px 10px; }
  .lb__panel{
    width: calc(100% - 16px);
    border-radius: 16px;
  }
  .lb__x{
    top:8px; right:8px;
    width:38px; height:38px;
    border-radius: 12px;
  }
}

/* Reduce motion (accesibilidad) */
@media (prefers-reduced-motion: reduce){
  .card__img,
  .card__overlay,
  .reveal{
    transition:none !important;
  }
  .gallery.is-shuffling .card{
    animation:none !important;
  }
}