/* ================================
   YouTube Channel Cards – CSS FULL
   ================================ */

/* Variables base */
:root {
  --yt-gap: 20px;
}

/* =========================
   GRID DE TARJETAS (listado)
   ========================= */
.youtube-cards-container {
  display: grid;
  gap: var(--yt-gap);
  margin: 20px auto;
  max-width: 980px;
}
.youtube-card-col-1 { grid-template-columns: 1fr; }
.youtube-card-col-2 { grid-template-columns: repeat(2, 1fr); }
.youtube-card-col-3 { grid-template-columns: repeat(3, 1fr); }
.youtube-card-col-4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 768px) {
  .youtube-cards-container { grid-template-columns: 1fr !important; }
}
@media (max-width: 1024px) and (min-width: 769px) {
  .youtube-card-col-3,
  .youtube-card-col-4 { grid-template-columns: repeat(2, 1fr); }
}

.youtube-card {
  background: #fff;
  border-radius: 0px;
  box-shadow: 0 2px 8px rgba(0,0,0,.1);
  overflow: hidden;
  transition: transform .3s, box-shadow .3s;
}
.youtube-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 4px 20px rgba(0,0,0,.15);
}

.youtube-card-thumbnail { position: relative; overflow: hidden; }
.youtube-card-thumbnail img {
  width: 100%;
  height: 180px;
  object-fit: cover;
  transition: transform .3s;
  display: block;
}
.youtube-card-thumbnail:hover img { transform: scale(1.05); }

/* Botón play para tarjetas */
.youtube-play-button {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  opacity: .9;
  filter: drop-shadow(0 4px 8px rgba(0,0,0,.35));
}

.youtube-card-content { padding: 20px; }
.youtube-card-title { margin: 0 0 10px 0; font-size: 16px; line-height: 1.4; }
.youtube-card-title a { color: #333; text-decoration: none; transition: color .3s; }
.youtube-card-title a:hover { color: #ff0000; }
.youtube-card-description { color: #666; font-size: 14px; line-height: 1.5; margin: 0 0 10px 0; }
.youtube-card-date { color: #999; font-size: 12px; }

/* =====================================
   CARRUSEL MULTI-ÍTEM (miniaturas+inline)
   ===================================== */
/* Contenedor con variables configurables */
.youtube-carousel-container{
  --perView: 3;           /* Ítems visibles en desktop (puedes sobrescribir desde inline style) */
  --yt-logo-size: 16px;   /* Tamaño del logo (desktop) */
  --yt-header-pad-y: 6px; /* Padding vertical del header dentro de la miniatura */
  --yt-header-pad-x: 8px; /* Padding horizontal del header */
  position: relative;
  width: 100%;
  background: #f8f9fa;
  border-radius: 0px;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(0,0,0,.1);
  margin: 20px 0;
  padding: 14px 0;
}

.youtube-carousel { position: relative; width: 100%; overflow: hidden; }
.youtube-carousel-track {
  display: flex;
  align-items: stretch;
  will-change: transform;
  transition: transform .45s ease;
}
.youtube-carousel-item {
  flex: 0 0 calc(100% / var(--perView));
  padding: 0 10px;
  box-sizing: border-box;
}

/* Miniatura y wrapper del iframe (misma caja) */
.youtube-carousel-thumb,
.yt-iframe-wrap {
  position: relative;
  width: 100%;
  aspect-ratio: 16/9;
  overflow: hidden;
  border-radius: 0px;
  box-shadow: 0 4px 15px rgba(0,0,0,.08);
  background: #000;
  display: block;
}
.youtube-carousel-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform .25s ease;
}
.youtube-carousel-thumb:hover img { transform: scale(1.02); }

/* Iframe de reproducción inline */
.yt-iframe-wrap iframe {
  width: 100%;
  height: 100%;
  border: 0;
  display: block;
}

/* Play centrado grande (sobre miniatura) */
.yt-play-badge{
  position: absolute;
  left: 50%; top: 50%;
  transform: translate(-50%, -50%);
  z-index: 3;
  pointer-events: none;
  filter: drop-shadow(0 4px 8px rgba(0,0,0,.35));
}

/* Header superior: logo canal + título */
.yt-header{
  position: absolute;
  inset: 0 0 auto 0;          /* top:0; left:0; right:0 */
  padding: var(--yt-header-pad-y) var(--yt-header-pad-x);
  display: flex;
  align-items: center;
  gap: 8px;
  z-index: 4;
  pointer-events: none;        /* no bloquear clicks */
  background: linear-gradient(180deg, rgba(0,0,0,.75) 0%, rgba(0,0,0,0) 100%);
}
.yt-channel-logo{
  width: var(--yt-logo-size);
  height: var(--yt-logo-size);
  border-radius: 50%;
  object-fit: cover;
  background: #222;
  border: 1px solid rgba(255,255,255,.65);
  box-shadow: 0 1px 2px rgba(0,0,0,.35);
  flex: 0 0 var(--yt-logo-size);
}
.yt-header-title{
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  line-height: 1.25;
  text-shadow: 0 1px 2px rgba(0,0,0,.6);
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: normal;
  flex: 1 1 auto;
}

/* Botones navegación */
.youtube-carousel-nav{
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(255,255,255,.95);
  border: none;
  border-radius: 50%;
  width: 48px; height: 48px;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
  transition: .25s ease;
  box-shadow: 0 4px 15px rgba(0,0,0,.12);
  z-index: 10;
}
.youtube-carousel-nav:hover{
  background: #fff;
  transform: translateY(-50%) scale(1.06);
}
.youtube-carousel-nav svg { width: 24px; height: 24px; display: block; }
.youtube-carousel-prev { left: 12px; }
.youtube-carousel-next { right: 12px; }

/* Dots / Indicadores */
.youtube-carousel-indicators{
  position: absolute;
  bottom: 12px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 8px;
  z-index: 10;
}
.youtube-carousel-dot{
  width: 10px; height: 10px;
  border-radius: 50%;
  border: none;
  background: rgba(255,255,255,.6);
  cursor: pointer;
  transition: .2s;
}
.youtube-carousel-dot:hover { background: rgba(255,255,255,.85); }
.youtube-carousel-dot.active{
  background: #fff;
  transform: scale(1.2);
  box-shadow: 0 2px 6px rgba(0,0,0,.25);
}

/* =========================
   ACCESIBILIDAD / FOCUS
   ========================= */
.youtube-carousel-nav:focus-visible,
.youtube-carousel-dot:focus-visible,
.youtube-carousel-thumb:focus-visible {
  outline: 2px solid #1a73e8;
  outline-offset: 2px;
}

/* Respeta usuarios con reduce motion */
@media (prefers-reduced-motion: reduce) {
  .youtube-carousel-track,
  .youtube-card,
  .youtube-card-thumbnail img,
  .youtube-carousel-thumb img {
    transition: none !important;
  }
}

/* =========================
   RESPONSIVE
   ========================= */
@media (max-width: 768px) {
  .youtube-carousel-container{
    --perView: 1;
    --yt-logo-size: 14px;
    --yt-header-pad-y: 4px;
    --yt-header-pad-x: 6px;
  }
  .yt-header-title { -webkit-line-clamp: 2; }
}

@media (min-width: 769px) and (max-width: 1024px) {
  .youtube-carousel-container{ --perView: 2; }
}