/* ==================== Variables de Optimización Adaptativa ==================== */
:root {
  --shadow-complexity: 3;
  --card-primary: #72d6ff;
  --card-secondary: #ff7fff;
  --card-accent: #4ade80;
  --card-transition: 0.2s ease;
  --radius: 12px;
  --text-primary: #ffffff;
  --text-secondary: #72d6ff;
  --accent: #72d6ff;
  --accent-purple: #ff7fff;
}

@media (hover: none) and (pointer: coarse) {
  :root {
    --card-transition: 0.2s ease;
  }
}

/* ==================== Container ==================== */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
  position: relative;
  z-index: 2;
}

/* ==================== Main Content ==================== */
main {
  padding: 2rem 0;
  position: relative;
  z-index: 2;
}

/* ==================== Info Banner ==================== */
.info-banner {
  font-weight: 500;
  color: var(--text-secondary);
  margin: 1.5rem 0;
  text-align: center;
  font-size: 0.9rem;
  line-height: 1.6;
  padding: 1.2rem;
  background: rgba(114, 214, 255, 0.08);
  border-radius: var(--radius);
  border: 1px solid rgba(114, 214, 255, 0.3);
  position: relative;
}

.info-banner a {
  color: var(--accent);
  text-decoration: none;
  font-weight: 600;
  border-bottom: 1px solid transparent;
  touch-action: manipulation;
}

.info-banner a:active {
  color: var(--accent-purple);
}

@media (hover: hover) {
  .info-banner a:hover {
    border-bottom-color: var(--accent);
    color: var(--accent-purple);
  }
}

/* ==================== Agenda Frame ==================== */
iframe#agendaFrame {
  width: 100%;
  height: 500px;
  border-radius: var(--radius);
border: 1px solid #1550b600 !important;
  margin-bottom: 2rem;
  background: rgb(114 214 255 / 0%);
  touch-action: pan-y;
}

/* ==================== Channels Section ==================== */
.channels-section {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  position: relative;
  padding: 2rem 0;
}

/* ==================== Section Title ==================== */
.section-title {
  font-size: 2.5rem;
  font-weight: 800;
  text-align: center;
  background: linear-gradient(135deg, 
    var(--card-primary) 0%, 
    var(--card-secondary) 25%,
    var(--card-accent) 50%,
    var(--card-secondary) 75%,
    var(--card-primary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  background-size: 300% 100%;
  margin-bottom: 1rem;
  letter-spacing: -1px;
  position: relative;
  padding-bottom: 1.5rem;
}

/* Línea decorativa bajo el título */
.section-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 400px;
  max-width: 90%;
  height: 3px;
  background: linear-gradient(90deg, 
    transparent, 
    var(--card-primary) 20%, 
    var(--card-secondary) 50%,
    var(--card-primary) 80%, 
    transparent);
  border-radius: 2px;
}

/* ==================== GRID ==================== */
.channels-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 1.5rem;
  position: relative;
}

/* Card destacada */
.channel-card.featured {
  grid-column: span 2;
  grid-row: span 2;
}

/* ==================== CARDS ==================== */
.channel-card {
  border-radius: 20px;
  cursor: pointer;
  text-align: center;
  padding: 1.5rem;
  border: 2px solid transparent;
  min-height: 180px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
  touch-action: manipulation;
  -webkit-user-select: none;
  user-select: none;
  transition: all var(--card-transition);

  border: 1px solid rgba(114, 214, 255, 0.2);
}

/* Borde simplificado */
.channel-card::before {
  content: '';
  position: absolute;
  inset: -2px;
  border-radius: 20px;
  padding: 2px;
  background: linear-gradient(135deg,
    var(--card-primary) 0%,
    var(--card-secondary) 25%,
    var(--card-accent) 50%,
    var(--card-secondary) 75%,
    var(--card-primary) 100%);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity 0.2s ease;
  pointer-events: none;
}

/* ==================== IMAGEN ==================== */
.channel-card img {
  width: 90px;
  height: 90px;
  border-radius: 50%;
  margin-bottom: 1rem;
  border: 3px solid rgba(114, 214, 255, 0.3);
  transition: all var(--card-transition);
  pointer-events: none;
  image-rendering: -webkit-optimize-contrast;
  image-rendering: crisp-edges;
}

/* ==================== TEXTO ==================== */
.channel-card span {
  display: block;
  font-weight: 700;
  color: var(--text-primary);
  font-size: 1rem;
  line-height: 1.4;
  pointer-events: none;
  position: relative;
  z-index: 2;
  transition: all 0.2s ease;
}

/* ==================== BADGES ==================== */
.channel-card .badge {
  position: absolute;
  top: 15px;
  right: 15px;
  background: linear-gradient(135deg, #ff0844, #ff7f50);
  color: white;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 0.7rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  z-index: 3;
}

/* Quality Badge */
.channel-card .quality-badge {
  position: absolute;
  bottom: 15px;
  left: 15px;
  background: rgba(0, 0, 0, 0.8);
  padding: 4px 10px;
  border-radius: 15px;
  font-size: 0.65rem;
  font-weight: 700;
  color: white;
  border: 1px solid rgba(255, 255, 255, 0.2);
  display: flex;
  align-items: center;
  gap: 5px;
  z-index: 3;
}

.quality-badge.hd {
  border-color: var(--card-accent);
  color: var(--card-accent);
}

.quality-badge.full-hd {
  border-color: var(--card-primary);
  color: var(--card-primary);
}

.quality-badge.ultra-hd {
  border-color: gold;
  color: gold;
}

/* ==================== EFECTOS DE HOVER (Desktop) ==================== */
@media (hover: hover) and (pointer: fine) {
  .channel-card:hover {
    transform: translateY(-5px) scale(1.02);
    background: linear-gradient(135deg,
      rgba(25, 30, 50, 0.95) 0%,
      rgba(30, 35, 55, 0.9) 50%,
      rgba(25, 30, 50, 0.95) 100%);
    border-color: rgba(114, 214, 255, 0.4);
  }

  .channel-card:hover::before {
    opacity: 1;
  }

  .channel-card:hover img {
    transform: scale(1.05);
    border-color: var(--card-primary);
  }

  .channel-card:hover span {
    color: var(--card-primary);
  }
}

/* ==================== EFECTOS MÓVIL (Touch) ==================== */
@media (hover: none) and (pointer: coarse) {
  .channel-card:active {
    transform: scale(0.98);
    border-color: rgba(114, 214, 255, 0.5);
  }

  .channel-card:active::before {
    opacity: 1;
  }

  .channel-card:active img {
    transform: scale(1.03);
  }
}

/* ==================== INFORMACIÓN ADICIONAL ==================== */
.channel-card .info-overlay {
  position: absolute;
  inset: 0;
  background: rgba(10, 15, 30, 0.95);
  border-radius: 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.8rem;
  padding: 1.5rem;
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.2s ease;
  pointer-events: none;
  z-index: 10;
}

@media (hover: hover) and (pointer: fine) {
  .channel-card:hover .info-overlay {
    opacity: 1;
    transform: translateY(0);
  }
}

.info-overlay .info-title {
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--card-primary);
}

.info-overlay .info-stats {
  display: flex;
  gap: 1rem;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.8);
}

.info-overlay .info-stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.3rem;
}

.info-overlay .info-stat-value {
  font-weight: 700;
  color: var(--card-accent);
  font-size: 1.1rem;
}

.info-overlay .info-description {
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.7);
  text-align: center;
  line-height: 1.4;
}

.info-overlay .watch-btn {
  background: linear-gradient(135deg, var(--card-primary), var(--card-secondary));
  color: white;
  padding: 0.6rem 1.5rem;
  border-radius: 25px;
  font-weight: 700;
  font-size: 0.9rem;
  border: none;
  cursor: pointer;
  pointer-events: all;
}

/* ==================== VARIANTES DE ESTILO ==================== */
.channel-card.style-neon {
  border: 2px solid var(--card-primary);
}

.channel-card.style-cyber {
  border: 2px solid var(--card-secondary);
}

.channel-card.style-matrix {
  border: 2px solid var(--card-accent);
}

.channel-card.theme-void {
  background: radial-gradient(circle at 50% 50%, rgba(30, 0, 60, 0.8), rgba(0, 0, 0, 0.95));
  border-color: rgba(139, 69, 255, 0.5);
}

.channel-card.theme-crystal {
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.05), rgba(200, 230, 255, 0.08));
  border: 2px solid rgba(200, 230, 255, 0.3);
}

.channel-card.theme-fire {
  background: linear-gradient(135deg, rgba(60, 20, 10, 0.9), rgba(40, 10, 5, 0.95));
  border-color: rgba(255, 100, 0, 0.5);
}

/* ==================== CARDS ESPECIALES - PREMIUM ==================== */
.channel-card.premium {
  background: linear-gradient(135deg,
    rgba(255, 215, 0, 0.1),
    rgba(255, 140, 0, 0.1)),
    rgba(30, 35, 55, 0.9);
  border: 2px solid gold;
}

.channel-card.premium .crown {
  position: absolute;
  top: -15px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 2rem;
  z-index: 20;
}

/* ==================== MODO LISTA ==================== */
.channels-grid.list-view {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.channels-grid.list-view .channel-card {
  flex-direction: row;
  text-align: left;
  padding: 1rem 1.5rem;
  min-height: auto;
}

.channels-grid.list-view .channel-card img {
  width: 60px;
  height: 60px;
  margin-bottom: 0;
  margin-right: 1.5rem;
}

.channels-grid.list-view .channel-card.featured {
  grid-column: span 1;
  grid-row: span 1;
}

/* ==================== MODO COMPACTO ==================== */
.channels-grid.compact .channel-card {
  min-height: 120px;
  padding: 1rem;
}

.channels-grid.compact .channel-card img {
  width: 60px;
  height: 60px;
}

.channels-grid.compact .channel-card span {
  font-size: 0.85rem;
}

/* ==================== ESTADOS ESPECIALES ==================== */
.channel-card.offline {
  opacity: 0.5;
  filter: grayscale(0.8);
  pointer-events: none;
}

.channel-card.offline::after {
  content: 'OFFLINE';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: rgba(0, 0, 0, 0.9);
  color: #ff4444;
  padding: 0.5rem 1rem;
  border-radius: 8px;
  font-weight: 800;
  font-size: 0.9rem;
  border: 2px solid #ff4444;
  z-index: 25;
}

/* ==================== RESPONSIVE ==================== */
@media (max-width: 768px) {
  .channels-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 0.75rem;
  }

  .channel-card {
    padding: 0.75rem;
    min-height: 120px;
  }

  .channel-card img {
    width: 60px;
    height: 60px;
  }

  .section-title {
    font-size: 1.8rem;
  }

  .channel-card.featured {
    grid-column: span 1;
    grid-row: span 1;
  }
}

@media (max-width: 480px) {
  .channels-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 0.5rem;
  }

  .channel-card {
    padding: 0.6rem;
    min-height: 110px;
    border-radius: 16px;
  }

  .channel-card img {
    width: 50px;
    height: 50px;
  }

  .channel-card span {
    font-size: 0.85rem;
  }

  .section-title {
    font-size: 1.5rem;
  }

  .badge {
    font-size: 0.6rem;
    padding: 3px 8px;
  }
}

@media (max-width: 360px) {
  .channels-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 0.4rem;
  }

  .channel-card {
    padding: 0.5rem;
    min-height: 100px;
    border-radius: 14px;
  }

  .channel-card img {
    width: 45px;
    height: 45px;
  }

  .channel-card span {
    font-size: 0.75rem;
  }

  .section-title {
    font-size: 1.3rem;
  }
}

@media (min-width: 1024px) and (hover: hover) {
  .channels-grid {
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 1.5rem;
  }

  .channel-card {
    padding: 1.5rem;
    min-height: 180px;
  }

  .channel-card img {
    width: 90px;
    height: 90px;
  }

  iframe#agendaFrame {
    height: 600px;
  }
}

@media (min-width: 1920px) {
  .container {
    max-width: 1400px;
  }

  .channels-grid {
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 2rem;
  }

  .section-title {
    font-size: 2.8rem;
  }

  .channel-card {
    min-height: 220px;
    padding: 2rem 1.5rem;
  }

  .channel-card img {
    width: 110px;
    height: 110px;
  }
}

/* ==================== Accesibilidad ==================== */
.channel-card:focus-visible {
  outline: 3px solid var(--card-primary);
  outline-offset: 3px;
}

@media (prefers-reduced-motion: reduce) {
  * {
    transition: none !important;
  }

  .channel-card:hover {
    transform: scale(1.02);
  }
}

/* ==================== Fix Safari iOS ==================== */
@supports (-webkit-touch-callout: none) {
  body {
    min-height: -webkit-fill-available;
  }
}

/* ==================== Prevenir Selección No Deseada ==================== */
.channel-card {
  -webkit-touch-callout: none;
  -webkit-user-select: none;
  user-select: none;
}

.info-banner,
.section-title {
  -webkit-user-select: text;
  user-select: text;
}

/* ==================== Smooth Scrolling ==================== */
html {
  scroll-behavior: smooth;
}

@media (hover: none) and (pointer: coarse) {
  html {
    scroll-behavior: auto;
  }
}

/* ==================== Modo Oscuro del Sistema ==================== */
@media (prefers-color-scheme: dark) {
  .channel-card {
    background: linear-gradient(135deg,
      rgba(5, 10, 20, 0.95) 0%,
      rgba(10, 15, 25, 0.9) 50%,
      rgba(5, 10, 20, 0.95) 100%);
  }
}