/* ============================================================
   FOTOS DEL EVENTO — misma estética clara/médica que el resto
   del sitio, en formato de galería completa (150-300 fotos).
   ============================================================ */

:root {
  --e-bg: #eef6fb;
  --e-text: #16293b;
  --e-text-muted: #52708a;
  --e-accent: #2f8fd8;
  --e-accent-dark: #1f6fb0;
  --e-accent-soft: rgba(47, 143, 216, 0.14);
  --e-glass-bg: rgba(255, 255, 255, 0.55);
  --e-glass-border: rgba(22, 41, 59, 0.16);

  --font-serif: 'Fraunces', Georgia, serif;
  --font-accent: 'Fraunces', Georgia, serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  min-height: 100%;
  color: var(--e-text);
  font-family: var(--font-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; }
:focus-visible { outline: 2px solid var(--e-accent); outline-offset: 3px; }

.ambient {
  position: fixed;
  inset: -10%;
  z-index: -1;
  background:
    radial-gradient(circle at 18% 12%, rgba(90, 170, 230, 0.42), transparent 44%),
    radial-gradient(circle at 88% 18%, rgba(110, 210, 180, 0.34), transparent 48%),
    radial-gradient(circle at 25% 88%, rgba(150, 200, 240, 0.28), transparent 50%),
    radial-gradient(circle at 85% 90%, rgba(120, 220, 190, 0.26), transparent 46%),
    var(--e-bg);
}

.back-link {
  position: fixed;
  top: 1.5rem;
  left: 1.5rem;
  z-index: 10;
  display: inline-flex;
  align-items: center;
  padding: 0.6rem 1.1rem;
  border-radius: 999px;
  background: var(--e-glass-bg);
  border: 1px solid var(--e-glass-border);
  backdrop-filter: blur(16px) saturate(160%);
  color: var(--e-text);
  text-decoration: none;
  font-size: 0.85rem;
  transition: border-color 200ms ease, background 200ms ease;
}

.back-link:hover,
.back-link:focus-visible {
  border-color: var(--e-accent);
  background: var(--e-accent-soft);
}

.evento-page {
  max-width: 1200px;
  margin: 0 auto;
  padding: 6rem 1.5rem 4rem;
}

.evento-page__loading {
  text-align: center;
  color: var(--e-text-muted);
  padding-top: 4rem;
}

.evento-page__loading a { color: var(--e-accent-dark); text-decoration: underline; }

.evento-page__header {
  text-align: center;
  margin-bottom: 2.5rem;
}

.evento-page__eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.75rem;
  color: var(--e-accent-dark);
  margin: 0 0 0.75rem;
}

.evento-page__title {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  margin: 0 0 0.5rem;
}

.evento-page__fecha {
  font-family: var(--font-accent);
  font-style: italic;
  font-size: 1.1rem;
  color: var(--e-text-muted);
  margin: 0 0 0.4rem;
}

.evento-page__count {
  font-size: 0.85rem;
  color: var(--e-text-muted);
  margin: 0;
}

.evento-page__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.6rem;
}

@media (min-width: 560px) {
  .evento-page__grid { grid-template-columns: repeat(4, 1fr); gap: 0.8rem; }
}

@media (min-width: 900px) {
  .evento-page__grid { grid-template-columns: repeat(6, 1fr); }
}

@media (min-width: 1200px) {
  .evento-page__grid { grid-template-columns: repeat(8, 1fr); }
}

.evento-page__item {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  aspect-ratio: 1 / 1;
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid var(--e-glass-border);
  background: var(--e-glass-bg);
  backdrop-filter: blur(10px);
}

.evento-page__placeholder {
  width: 32%;
  color: var(--e-accent-dark);
  opacity: 0.5;
}

.evento-page__placeholder svg { width: 100%; height: 100%; display: block; }

.evento-page__item img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 220ms ease;
}

.evento-page__item:hover img,
.evento-page__item:focus-visible img { transform: scale(1.07); }

@media (prefers-reduced-motion: reduce) {
  * { transition-duration: 0.01ms !important; }
}