/* ==================== */
/* VARIABLES Y RESET */
/* ==================== */
:root {
  /* Colores principales */
  --primary: #e50914; /* Rojo Netflix-style */
  --primary-dark: #b20710;
  --secondary: #221f1f;
  --light: #f5f5f1;
  --dark: #141414;
  --gray: #808080;
  --gray-light: #e6e6e6;
  --gray-dark: #2a2a2a;
      max-width: 1024px !important;

  /* Tipografía */
  --font-main: 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
  --font-alt: 'Arial', sans-serif;
  --font-size-base: 16px;
  --font-size-lg: 1.25rem;
  --font-size-xl: 1.5rem;
  --font-size-xxl: 2rem;
  
  /* Espaciados */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  
  /* Sombras */
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.12);
  --shadow-md: 0 4px 6px rgba(0,0,0,0.1);
  --shadow-lg: 0 10px 25px rgba(0,0,0,0.2);
  
  /* Bordes */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-full: 50%;
  
  /* Transiciones */
  --transition-fast: 0.15s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-main);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--light);
  background-color: var(--dark);
  overflow-x: hidden;
}

/* ==================== */
/* TIPOGRAFÍA */
/* ==================== */
h1, h2, h3, h4 {
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--space-md);
}

h1 {
  font-size: var(--font-size-xxl);
  color: var(--primary);
}

h2 {
  font-size: var(--font-size-xl);
}

h3 {
  font-size: var(--font-size-lg);
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--primary);
}

/* ==================== */
/* ESTRUCTURA PRINCIPAL */
/* ==================== */
.container {
  width: 100%;
  max-width: 1024px;
  margin: 0 auto;
  padding: 0 var(--space-md);
}

/* ==================== */
/* HEADER */
/* ==================== */
header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: rgba(20, 20, 20, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  transition: all var(--transition-normal);
}

.header-scrolled {
  background-color: rgba(0, 0, 0, 0.9);
  box-shadow: var(--shadow-lg);
}

nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 70px;
  padding: var(--space-sm) 0;
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.logo img {
  height: 36px;
  width: auto;
  transition: transform var(--transition-normal);
}

.logo:hover img {
  transform: scale(1.05);
}

.nav-buttons {
  display: flex;
  gap: var(--space-md);
  align-items: center;
}

.nav-button {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-sm);
  border-radius: var(--radius-sm);
  transition: all var(--transition-normal);
  position: relative;
}

.nav-button img {
  width: 24px;
  height: 24px;
  object-fit: contain;
  transition: transform var(--transition-normal);
}

.nav-button span {
  font-size: 0.7rem;
  margin-top: 3px;
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.nav-button:hover {
  background-color: rgba(255, 255, 255, 0.1);
}

.nav-button:hover img {
  transform: scale(1.2);
}

.nav-button:hover span {
  opacity: 1;
}

/* ==================== */
/* REPRODUCTOR */
/* ==================== */
.video-container {
  position: relative;
  width: 100%;
  margin: var(--space-xl) 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.video-container::before {
  content: '';
  display: block;
  padding-top: 56.25%; /* 16:9 Aspect Ratio */
}

.video-container iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: none;
}

/* ==================== */
/* ANUNCIOS */
/* ==================== */
.ads-container {
  background-color: var(--gray-dark);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  margin: var(--space-lg) 0;
  text-align: center;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

/* ==================== */
/* CONTENIDO */
/* ==================== */
.content-section {
  background-color: var(--secondary);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  margin-bottom: var(--space-lg);
  box-shadow: var(--shadow-md);
}

.program-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--space-lg);
  margin: var(--space-lg) 0;
}

.program-card {
  background-color: var(--dark);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  border-left: 4px solid var(--primary);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.program-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.feature-list {
  list-style-type: none;
}

.feature-list li {
  position: relative;
  padding-left: var(--space-lg);
  margin-bottom: var(--space-md);
}

.feature-list li::before {
  content: '•';
  color: var(--primary);
  font-size: 1.5rem;
  position: absolute;
  left: 0;
  top: -3px;
}

/* ==================== */
/* REDES SOCIALES */
/* ==================== */
.social-section {
  text-align: center;
  margin: var(--space-xl) 0;
}

.social-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: var(--space-md);
  margin-top: var(--space-lg);
}

.social-card {
  background-color: var(--secondary);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  transition: transform var(--transition-normal);
}

.social-card:hover {
  transform: scale(1.05);
}

.social-card img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-sm);
}

/* ==================== */
/* FOOTER */
/* ==================== */
footer {
  background-color: var(--secondary);
  padding: var(--space-xl) 0;
  margin-top: var(--space-xl);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-xl);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-md);
  margin-top: var(--space-lg);
}

.footer-links a {
  color: var(--gray);
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: var(--light);
}

/* ==================== */
/* ANIMACIONES */
/* ==================== */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.content-section {
  animation: fadeIn 0.6s ease-out forwards;
}

@keyframes ripple {
  0% {
    transform: scale(0);
    opacity: 1;
  }
  100% {
    transform: scale(4);
    opacity: 0;
  }
}

.ripple-effect {
  position: absolute;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.4);
  transform: scale(0);
  animation: ripple 0.6s linear;
  pointer-events: none;
}

/* ==================== */
/* RESPONSIVE */
/* ==================== */
@media (max-width: 1024px) {
  :root {
    --font-size-base: 15px;
  }
  
  .program-grid {
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  }
}

@media (max-width: 768px) {
  :root {
    --font-size-base: 14px;
    --font-size-xxl: 1.75rem;
  }
  
  nav {
    flex-direction: column;
    height: auto;
    padding: var(--space-md) 0;
  }
  
  .logo {
    margin-bottom: var(--space-md);
  }
  
  .nav-buttons {
    width: 100%;
    justify-content: space-around;
  }
  
  .nav-button span {
    display: none;
  }
}

@media (max-width: 480px) {
  :root {
    --font-size-base: 13px;
    --font-size-xxl: 1.5rem;
  }
  
  .container {
    padding: 0 var(--space-sm);
  }
  
  .program-grid {
    grid-template-columns: 1fr;
  }
  
  .social-grid {
    grid-template-columns: 1fr 1fr;
  }
}

/* ==================== */
/* UTILIDADES */
/* ==================== */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--primary);
  color: white;
  padding: var(--space-sm);
  z-index: 100;
  transition: top 0.3s;
}

.skip-link:focus {
  top: 0;
}

/* ==================== */
/* MODO OSCURO/CLARO */
/* ==================== */
@media (prefers-color-scheme: light) {
  body {
    color: var(--dark);
    background-color: var(--light);
  }
  
  header, footer, .content-section, .program-card {
    background-color: white;
    color: var(--dark);
  }
  
  .nav-button:hover {
    background-color: rgba(0, 0, 0, 0.05);
  }
  
  .feature-list li::before {
    color: var(--primary-dark);
  }
}