/* No forzamos fondo global aquí para no interferir con el tema de la página */
header {
  padding: 30px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  position: -webkit-sticky;
  position: sticky;
  left: 0;
  right: 0;
  top: 0;
  z-index: 1000;
}

.heading {
  color: #fcfeff;
  font-size: 40px;
  text-align: center;
  padding: 12px 20px;
  margin: 0 auto 12px;
  display: block;
  width: max-content;
  border-radius: 12px;
  background: linear-gradient(180deg, rgba(99, 102, 241, 0.18), rgba(0, 0, 0, 0.32));
  border: 1px solid rgba(255, 255, 255, 0.16);
  box-shadow: 0 8px 22px rgba(0, 0, 0, 0.28);
  backdrop-filter: saturate(1.1) blur(3px);
  position: relative;
  letter-spacing: 0.5px;
  font-weight: 800;
  font-family: 'Poppins', ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial;
  text-shadow: 0 2px 6px rgba(0, 0, 0, 0.55), 0 0 12px rgba(99, 102, 241, 0.25);
}
/* Acento moderno del encabezado */
.heading::before {
  content: "";
  position: absolute;
  top: 6px;
  left: 50%;
  transform: translateX(-50%);
  height: 3px;
  width: 58%;
  background: #6366f1;
  border-radius: 3px;
  box-shadow: 0 2px 6px rgba(99, 102, 241, 0.35);
}

.container {
  display: grid;
  grid-template-columns: 1fr 1fr; /* columnas iguales para un look más compacto */
  gap: 18px;
  align-items: start;
  padding: 10px 3%;
  max-width: 1180px;
  margin: 0 auto;
}

.container .main-video {
  background: rgba(28, 33, 39, 0.65);
  border-radius: 12px;
  padding: 14px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.28);
  backdrop-filter: blur(6px) saturate(1.1);
  position: relative;
  min-height: 460px; /* altura alineada con la lista para equilibrio visual */
}
.container .main-video::before {
  content: "";
  position: absolute;
  top: 10px;
  left: 12px;
  width: 68px;
  height: 4px;
  background: #6366f1; /* indigo sólido */
  border-radius: 3px;
  box-shadow: 0 2px 6px rgba(99, 102, 241, 0.30);
}

/* Marco sutil del contenedor del reproductor */
.container .main-video .video {
  border-radius: 12px;
  padding: 6px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.05), rgba(0, 0, 0, 0.30));
  box-shadow: inset 0 0 24px rgba(0, 0, 0, 0.25);
}

.container .main-video video {
  width: 100%;
  border-radius: 10px;
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.28);
  background: #000;
  aspect-ratio: 16 / 9;
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.container .main-video .title {
  color: #ffffff;
  font-size: 20px;
  line-height: 1.35;
  margin-top: 10px;
  padding: 6px; /* uniforme y más compacto */
  display: inline-block;
  border-radius: 8px;
  background: rgba(0, 0, 0, 0.32);
  text-shadow: 0 2px 6px rgba(0, 0, 0, 0.55);
  font-weight: 700;
  border: 1px solid rgba(255, 255, 255, 0.18);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.22);
}

/* Transiciones suaves del reproductor */
.container .main-video .video.fade-out {
  opacity: 0.2;
  transition: opacity 150ms ease;
}
.container .main-video .video.fade-in {
  opacity: 1;
  transition: opacity 200ms ease;
}

/* Panel de pruebas y errores del reproductor */
.test-panel {
  position: fixed;
  bottom: 12px;
  right: 12px;
  max-width: 340px;
  background: rgba(0, 0, 0, 0.8);
  color: #fff;
  padding: 10px 12px;
  border-radius: 8px;
  font-family: monospace;
  z-index: 99999;
}
.video-error {
  color: #c0392b;
  font-size: 14px;
}

.container .video-list {
  background: rgba(28, 33, 39, 0.55);
  border-radius: 12px;
  height: 460px; /* más compacto y alineado con el panel visual */
  overflow-y: auto;
  border: 1px solid rgba(255, 255, 255, 0.14);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.24);
  backdrop-filter: blur(6px) saturate(1.05);
}

/* Barra de controles en la lista */
/* Panel de control eliminado: se quitan estilos asociados a .controls-dock y botones */

.container .video-list::-webkit-scrollbar {
  width: 8px;
}

.container .video-list::-webkit-scrollbar-track {
  background: rgba(255, 255, 255, 0.08);
  border-radius: 50px;
}

.container .video-list::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.28);
  border-radius: 50px;
}

.container .video-list .vid video {
  width: 100px;
  height: 64px;
  border-radius: 8px;
  object-fit: cover;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25);
  border: 1px solid rgba(255, 255, 255, 0.14);
  transition: transform 140ms ease, filter 140ms ease, box-shadow 140ms ease, border-color 140ms ease;
  display: block;
  object-position: center;
  background: #000;
}

.container .video-list .vid {
  display: flex;
  flex-direction: row;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  background: rgba(255, 255, 255, 0.06);
  border-radius: 10px;
  margin: 10px;
  padding: 10px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  cursor: pointer;
  transition: background 140ms ease, transform 140ms ease, box-shadow 140ms ease, border-color 140ms ease;
}

.container .video-list .vid:hover {
  background: rgba(255, 255, 255, 0.12);
  transform: translateY(-1px);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.28);
  border-color: rgba(255, 255, 255, 0.22);
}

/* Microanimación de la miniatura al pasar el puntero */
.container .video-list .vid:hover video {
  transform: scale(1.02);
  filter: brightness(1.06);
  border-color: rgba(255, 255, 255, 0.24);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.28);
}

.container .video-list .vid.active {
  background: rgba(99, 102, 241, 0.42);
  border-color: rgba(99, 102, 241, 0.56);
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.25);
  border-left: 1px solid #6366f1;
  transform: translateY(-1px);
}

/* Realce extra de la miniatura en el elemento activo */
.container .video-list .vid.active video {
  transform: scale(1.03);
  filter: brightness(1.08);
  border-color: rgba(99, 102, 241, 0.56);
  box-shadow: 0 6px 14px rgba(99, 102, 241, 0.24);
}
.container .video-list .vid:focus-visible {
  outline: 2px solid #6366f1;
  outline-offset: 2px;
}

.container .video-list .vid.active .title {
  color: #ffffff;
  background: rgba(99, 102, 241, 0.40);
}

/* Hover: chip activo con degradado sutil */
.container .video-list .vid.active:hover .title {
  background: linear-gradient(90deg, rgba(129, 140, 248, 0.55), rgba(99, 102, 241, 0.45));
}

.container .video-list .vid .title {
  color: #eaf4ff;
  font-size: 13px;
  line-height: 1.35;
  display: -webkit-box;
  text-align: center;
  line-clamp: 2;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  max-width: 96%;
  flex: 0 0 100%;
  margin: 4px auto 0;
  padding: 3px 6px;
  border-radius: 9999px;
  background: rgba(0, 0, 0, 0.22);
  text-shadow: 0 2px 6px rgba(0, 0, 0, 0.45);
  font-weight: 600;
  letter-spacing: 0.1px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
}

@media (max-width: 991px) {
  .container {
    grid-template-columns: 1.5fr 1fr;
    padding: 10px 4%;
  }
}

@media (max-width: 768px) {
  .container {
    grid-template-columns: 1fr;
    padding: 10px 4%;
  }
}

/* Ajustes móviles: mejorar legibilidad y aire visual */
@media (max-width: 600px) {
  .container .main-video { padding: 12px; }
  .container .main-video .title { font-size: 18px; }
  .container .video-list .vid .title { font-size: 13px; }
  .container .video-list .vid video { width: 96px; height: 60px; }
  /* Título más compacto en móviles */
  .heading { font-size: 34px; letter-spacing: 0.3px; padding: 10px 16px; }
  .heading::before { width: 64%; top: 5px; }
}