:root {
  --bg: #0b0909;
  --bg-2: #120e0e;
  --card: #1b1515;
  --borde: #352a2a;
  --text: #f3ece1;
  --hueso: #e9dfcf;
  --muted: #b9ada0;
  --rojo: #c8102e;
  --rojo-claro: #e8344d;
  --radius: 14px;
  --max: 1000px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  line-height: 1.55;
}

.skip {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--hueso);
  color: #111;
  padding: .6rem 1rem;
  z-index: 10;
}
.skip:focus { left: 0; }

a { color: inherit; }
:focus-visible { outline: 3px solid var(--rojo-claro); outline-offset: 3px; }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  padding: 2.5rem 1rem 4rem;
  text-align: center;
  background:
    radial-gradient(ellipse at 50% 30%, rgba(200, 16, 46, .28), transparent 60%),
    var(--bg-2);
  border-bottom: 3px solid var(--rojo);
}
.hero__inner { max-width: var(--max); margin: 0 auto; }
.hero__kicker {
  margin: 0;
  color: var(--rojo-claro);
  letter-spacing: .22em;
  text-transform: uppercase;
  font-size: .85rem;
  font-weight: 700;
}
.hero__title { margin: 0; }
.hero__logo {
  display: block;
  width: min(100%, 640px);
  height: auto;
  margin: 0 auto;
  /* El logo viene sobre fondo negro: "screen" hace que ese negro desaparezca
     y se integre con el degradado de la portada. */
  mix-blend-mode: screen;
}
.hero__text {
  max-width: 36rem;
  margin: .5rem auto 0;
  color: var(--muted);
  font-size: 1.1rem;
}
.hero__cta {
  display: flex;
  gap: .75rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 2rem;
}

/* ---------- Botones ---------- */
.btn {
  display: inline-block;
  padding: .75rem 1.4rem;
  border: 2px solid var(--hueso);
  border-radius: 999px;
  text-decoration: none;
  font-weight: 700;
  transition: transform .15s ease, background .15s ease, color .15s ease;
}
.btn:hover { transform: translateY(-2px); background: var(--hueso); color: var(--bg); }
.btn--primary { background: var(--rojo); border-color: var(--rojo); color: #fff; }
.btn--primary:hover { background: var(--rojo-claro); border-color: var(--rojo-claro); color: #fff; }
.btn--small { padding: .45rem 1rem; font-size: .9rem; }

/* ---------- Secciones ---------- */
.section {
  max-width: var(--max);
  margin: 0 auto;
  padding: 3.5rem 1rem 1rem;
}
.section h2 {
  margin: 0 0 1.5rem;
  font-size: clamp(1.7rem, 5vw, 2.4rem);
  text-transform: uppercase;
  letter-spacing: .04em;
  border-left: 8px solid var(--rojo);
  padding-left: .75rem;
}

/* ---------- Eventos ---------- */
.eventos, .redes { list-style: none; margin: 0; padding: 0; }

.evento {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem;
  margin-bottom: .85rem;
  background: var(--card);
  border-radius: var(--radius);
  border: 1px solid var(--borde);
}
.evento__fecha {
  flex: 0 0 auto;
  min-width: 4.2rem;
  text-align: center;
  padding: .5rem .4rem;
  border-radius: 10px;
  background: var(--rojo);
  color: #fff;
  font-weight: 800;
  line-height: 1.1;
}
.evento__dia { display: block; font-size: 1.8rem; }
.evento__mes { display: block; font-size: .8rem; letter-spacing: .12em; }
.evento__info { flex: 1 1 auto; min-width: 0; }
.evento__info h3 { margin: 0; font-size: 1.15rem; }
.evento__info p { margin: .2rem 0 0; color: var(--muted); }

.vacio {
  padding: 1.25rem;
  background: var(--card);
  border: 1px dashed #5a4646;
  border-radius: var(--radius);
  color: var(--muted);
}

/* ---------- Galería (columnas tipo mosaico) ---------- */
.galeria {
  column-count: 3;
  column-gap: .75rem;
}
.foto {
  margin: 0 0 .75rem;
  break-inside: avoid;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--card);
}
.foto__btn {
  display: block;
  width: 100%;
  padding: 0;
  border: 0;
  background: none;
  cursor: zoom-in;
}
.foto img {
  display: block;
  width: 100%;
  height: auto;
  transition: transform .3s ease, filter .3s ease;
}
.foto__btn:hover img { transform: scale(1.03); filter: brightness(1.1); }

.galeria--vacia { column-count: 2; }
.foto--vacia {
  aspect-ratio: 4 / 3;
  display: grid;
  place-items: center;
  color: var(--muted);
  font-size: .9rem;
  background: repeating-linear-gradient(45deg, var(--card) 0 14px, #231b1b 14px 28px);
  border: 1px dashed #5a4646;
}

/* ---------- Visor de fotos ---------- */
#visor {
  max-width: 96vw;
  max-height: 96vh;
  padding: 0;
  border: 0;
  background: transparent;
  overflow: visible;
}
#visor::backdrop { background: rgba(0, 0, 0, .88); }
#visor img {
  display: block;
  max-width: 96vw;
  max-height: 92vh;
  width: auto;
  height: auto;
  margin: 0 auto;
  border-radius: var(--radius);
}
.visor__cerrar {
  position: absolute;
  top: -2.6rem;
  right: 0;
  width: 2.4rem;
  height: 2.4rem;
  border: 2px solid var(--hueso);
  border-radius: 50%;
  background: transparent;
  color: var(--hueso);
  font-size: 1.6rem;
  line-height: 1;
  cursor: pointer;
}
.visor__cerrar:hover { background: var(--hueso); color: var(--bg); }

/* ---------- Redes ---------- */
.redes { display: flex; flex-wrap: wrap; gap: .75rem; }

/* ---------- Footer ---------- */
.footer {
  margin-top: 4rem;
  padding: 2rem 1rem;
  text-align: center;
  color: var(--muted);
  border-top: 1px solid var(--borde);
}

@media (max-width: 760px) {
  .galeria { column-count: 2; }
}
@media (max-width: 520px) {
  .evento { flex-wrap: wrap; }
  .evento .btn { margin-left: auto; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .btn, .foto img { transition: none; }
}