/* =============================================================
   landing.css — Vista A (inicio) y Vista C (índice de pósteres)
   ============================================================= */

/* ============================ LANDING ============================ */

/* Botón de reproducción automática, arriba a la derecha del inicio.
   Reducido un 30% respecto al tamaño original: queda en 45px de alto, que es
   el mínimo cómodo para pantalla táctil. */
.autoplay {
  position: absolute;
  right: 4rem;
  top: 3rem;
  z-index: 20;
  display: flex;
  align-items: center;
  gap: 1rem;
  min-height: 4.5rem;
  padding: 0 2rem 0 1.5rem;
  border-radius: 999px;
  background: var(--accent);
  color: var(--bg-sunken);
  font-size: 1.7rem;
  font-weight: 700;
  box-shadow: 0 1rem 2.4rem rgba(0, 0, 0, 0.4);
  transition: transform 0.14s ease, background 0.14s ease;
}

.autoplay:active { transform: scale(0.96); background: #6ba521; }
.autoplay svg { width: 2rem; height: 2rem; flex: 0 0 auto; }

/* El contenido del inicio baja para no quedar debajo del botón */
.landing { padding-top: 9.6rem; }

.landing {
  height: 100%;
  overflow-y: auto;
  overflow-x: hidden;
  -webkit-overflow-scrolling: touch;
  padding: 4rem 4rem 6rem;
}

.landing__intro {
  margin: 0 0 4.4rem;
  text-align: center;
}

.landing__intro h2 {
  margin: 0;
  font-size: 4.2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.landing__intro p {
  margin: 1.2rem 0 0;
  font-size: 2.4rem;
  color: var(--text-dim);
}

/* Secciones por disciplina */

.section { margin-bottom: 5.2rem; }
.section:last-child { margin-bottom: 0; }

.section__head {
  display: flex;
  align-items: center;
  gap: 1.8rem;
  margin-bottom: 2.8rem;
}

.section__dot {
  width: 2.2rem;
  height: 2.2rem;
  border-radius: 50%;
  flex: 0 0 auto;
}

.section__label {
  font-size: 3.4rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.section__count {
  font-size: 2.2rem;
  color: var(--text-faint);
  margin-left: auto;
}

.section__rule {
  flex: 1 1 auto;
  height: 1px;
  background: var(--line);
}

/* Rejilla de tarjetas */

.cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2.4rem;
}

.card {
  position: relative;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  text-align: left;
  background: var(--bg-raised);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: transform 0.14s ease, border-color 0.14s ease;
  min-height: 15rem;
}

.card:active {
  transform: scale(0.975);
  border-color: var(--card-color, var(--accent));
}

.card::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 0.8rem;
  background: var(--card-color, var(--accent));
}

.card__body {
  display: flex;
  gap: 2rem;
  padding: 2.2rem 2.2rem 2.2rem 2.8rem;
  flex: 1 1 auto;
  min-width: 0;
}

.card__text {
  min-width: 0;
  flex: 1 1 auto;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.card__title {
  margin: 0;
  font-size: 2.4rem;
  font-weight: 600;
  line-height: 1.3;
  letter-spacing: -0.005em;
  display: -webkit-box;
  -webkit-line-clamp: 5;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card__authors {
  margin: 1.2rem 0 0;
  font-size: 2rem;
  color: var(--text-dim);
  line-height: 1.35;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* Miniatura del póster */

.card__thumb {
  flex: 0 0 auto;
  width: 9.6rem;
  align-self: center;
}

.card__thumb img {
  width: 100%;
  /* Proporción fija: reserva el espacio antes de que la imagen llegue,
     así la tarjeta no salta al cargar */
  aspect-ratio: 506 / 900;
  object-fit: contain;
  border-radius: 0.8rem;
  background: #fff;
  box-shadow: 0 0.6rem 2rem rgba(0, 0, 0, 0.45);
}

/* Insignia de disponibilidad: va en línea sobre el título para no
   tapar ni la miniatura ni el texto. Las que tienen video muestran los
   dos iconos (video + póster) separados por un punto, para que se lea
   "dos contenidos" de un vistazo. */
.card__badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1.1rem;
  padding: 0.5rem 1.2rem;
  border-radius: 999px;
  font-size: 1.7rem;
  font-weight: 600;
  background: rgba(255, 255, 255, 0.07);
  white-space: nowrap;
}

.card__badge svg { width: 1.8rem; height: 1.8rem; flex: 0 0 auto; }
.card__badge--both { color: var(--accent); }
.card__badge--poster { color: var(--text-faint); }

/* Punto divisor entre los dos iconos */
.card__badge--both svg + svg { margin-left: 0.3rem; }

/* ====================== ÍNDICE DE PÓSTERES ====================== */

.index {
  height: 100%;
  display: flex;
  flex-direction: column;
  padding: 3.6rem 4rem 4rem;
}

.index__grid {
  flex: 1 1 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: repeat(3, 1fr);
  gap: 2.2rem;
  min-height: 0;
}

.tile {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius);
  background: var(--bg-raised);
  border: 1px solid var(--line);
  transition: transform 0.14s ease, border-color 0.14s ease;
}

.tile:active {
  transform: scale(0.97);
  border-color: var(--tile-color, var(--accent));
}

.tile__img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  background: #fff;
  padding: 0.8rem;
}

.tile__overlay {
  position: absolute;
  inset: auto 0 0 0;
  padding: 3.2rem 1.6rem 1.4rem;
  background: linear-gradient(to top, rgba(6, 22, 32, 0.95), transparent);
  text-align: left;
}

.tile__id {
  display: inline-block;
  font-size: 1.7rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}

.tile__name {
  font-size: 1.9rem;
  line-height: 1.25;
  color: var(--text);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.tile__rule {
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 0.7rem;
  background: var(--tile-color, var(--accent));
}