/* ==========================================================================
   RESET & ESTILOS BASE DE ACCESIBILIDAD
   ========================================================================== */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family:
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    Roboto,
    Oxygen,
    Ubuntu,
    Cantarell,
    sans-serif;
  color: #ffffff;
  background-color: #0b1325;
  line-height: 1.5;
}

/* Superposición y Transición de Videos */
.hero-video {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  z-index: 1;
  transition: opacity 2s ease-in-out;
  will-change: opacity;
}

.hero-video.active {
  opacity: 1;
  z-index: 2;
}

/* La capa de oscurecimiento permanece siempre por encima de ambos videos */
.video-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 3;
  background: radial-gradient(
    circle,
    rgba(5, 11, 20, 0.4) 0%,
    rgba(5, 11, 20, 0.8) 100%
  );
}

/* Accesibilidad: Anulación de animaciones de fundido para movimiento reducido */
@media (prefers-reduced-motion: reduce) {
  .hero-video {
    transition: none !important;
  }
}

/* Ocultar dinámicamente elementos solo para lectores de pantalla */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ==========================================================================
   HERO CAROUSEL CONTAINER (Centrado Principal)
   ========================================================================== */
.hero-carousel {
  position: relative;
  width: 100%;
  height: 100vh;
  min-height: 600px;
  display: flex;
  align-items: center;
  justify-content: center; /* Centra la tarjeta horizontalmente */
  padding: 5rem 1.5rem 6rem;
  overflow: hidden;
  background-color: #050b14;
}

/* Video y Overlay (WCAG 1.4.3 Contraste mínimo de 4.5:1) */
.video-container {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  overflow: hidden;
}

.video-container video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.video-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(
    circle,
    rgba(5, 11, 20, 0.4) 0%,
    rgba(5, 11, 20, 0.8) 100%
  );
}

/* ==========================================================================
   HERO CONTENT (Versión Minimalista y Compacta)
   ========================================================================== */
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 450px; /* Reducido de 580px a 450px para estilizar el ancho */
  width: 90%;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 0.85rem; /* Separación vertical reducida entre elementos */
  padding: 1.5rem 1.25rem; /* Reducido de 2.5rem 2rem a 1.5rem 1.25rem */
  background: rgba(11, 19, 37, 0.75);
  backdrop-filter: blur(12px);
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
}

.hero-title {
  font-size: clamp(1.4rem, 2.5vw, 1.9rem); /* Escala de título compacta */
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.01em;
  color: #ffffff;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.4);
}

.hero-subtitle {
  font-size: clamp(0.85rem, 1.2vw, 0.95rem); /* Texto secundario más discreto */
  color: #e2e8f0;
  font-weight: 400;
  line-height: 1.4;
}

/* Botones CTA Compactos */
.cta-group {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.6rem;
  width: 100%;
  margin-top: 0.25rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.55rem 1.1rem; /* Botones más bajos y estilizados */
  min-height: 40px; /* Garantiza área táctil accesible */
  font-size: 0.875rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: 6px;
  transition:
    background-color 0.25s ease,
    transform 0.2s ease,
    border-color 0.25s ease;
  cursor: pointer;
  border: 2px solid transparent;
}

.btn-primary {
  background-color: #0088cc;
  color: #ffffff;
}

.btn-primary:hover {
  background-color: #006699;
  transform: translateY(-2px);
}

.btn-secondary {
  background-color: rgba(255, 255, 255, 0.12);
  color: #ffffff;
  border-color: rgba(255, 255, 255, 0.4);
  backdrop-filter: blur(8px);
}

.btn-secondary:hover {
  background-color: rgba(255, 255, 255, 0.25);
  border-color: #ffffff;
  transform: translateY(-2px);
}

/* Indicador de Enfoque Teclado (WCAG 2.4.7 / 2.4.13) */
.btn:focus-visible,
.btn-control:focus-visible,
.tab-indicator:focus-visible {
  outline: 3px solid #00f0ff !important;
  outline-offset: 4px !important;
}

/* ==========================================================================
   CAROUSEL CONTROLS (Abajo centrado con animación de progreso)
   ========================================================================== */
.carousel-controls {
  position: absolute;
  bottom: 2.5rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 3;
  display: flex;
  align-items: center;
  gap: 1.25rem;
  background: rgba(11, 19, 37, 0.65);
  padding: 0.6rem 1.2rem;
  border-radius: 50px;
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.btn-control {
  background: transparent;
  border: none;
  color: #ffffff;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  transition: background-color 0.2s ease;
}

.btn-control:hover {
  background-color: rgba(255, 255, 255, 0.2);
}

.tabs-wrapper {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.tab-indicator {
  background: transparent;
  border: none;
  padding: 8px 4px;
  cursor: pointer;
  display: flex;
  align-items: center;
}

.progress-bar {
  display: block;
  width: 45px;
  height: 4px;
  background-color: rgba(255, 255, 255, 0.3);
  border-radius: 2px;
  overflow: hidden;
  position: relative;
  transition: width 0.3s ease;
}

.progress-fill {
  display: block;
  height: 100%;
  width: 0%;
  background-color: #00f0ff;
  border-radius: 2px;
}

/* Animación de llenado continuo cuando el tab está activo y el autoplay encendido */
.tab-indicator.active .progress-bar {
  width: 65px;
}

.tab-indicator.active.animating .progress-fill {
  animation: fillProgress 5s linear forwards;
}

.tab-indicator.active.paused .progress-fill {
  animation-play-state: paused;
}

.tab-indicator.completed .progress-fill {
  width: 100%;
}

@keyframes fillProgress {
  from {
    width: 0%;
  }
  to {
    width: 100%;
  }
}

/* ==========================================================================
   MOVIMIENTO RESTRINGIDO (WCAG 2.2.2 / PREFERS-REDUCED-MOTION)
   ========================================================================== */
@media (prefers-reduced-motion: reduce) {
  .tab-indicator.active.animating .progress-fill {
    animation: none;
    width: 100%;
  }
  .btn,
  .btn-control {
    transition: none;
  }
}

/* Responsive Design */
@media (max-width: 768px) {
  .hero-carousel {
    padding: 4rem 1rem 5rem;
  }
  .hero-content {
    padding: 1.75rem 1.25rem;
  }
  .cta-group {
    flex-direction: column;
    width: 100%;
  }
  .btn {
    width: 100%;
  }
  .carousel-controls {
    bottom: 1.5rem;
    width: 90%;
    justify-content: center;
  }
}