/* ============================================
   ESTILOS GLOBALES - Diseño Glassmorphism Oscuro
   ============================================ */

/* Reset básico */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  font-weight: var(--font-weight-normal);
  color: var(--color-text-white);
  background-color: var(--color-bg-dark);
  line-height: 1.6;
  overflow-x: hidden;
  min-height: 100vh;
  position: relative;
}

/* Fondo con patrones circulares (mantenido para compatibilidad, pero el fondo principal es falling-pattern) */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--color-bg-dark);
  z-index: -2;
  opacity: 0;
  pointer-events: none;
}

body::after {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: 
    radial-gradient(circle at 20% 30%, var(--pattern-glow) 0%, transparent 50%),
    radial-gradient(circle at 80% 70%, var(--pattern-glow) 0%, transparent 50%),
    radial-gradient(circle at 40% 80%, var(--pattern-color) 0%, transparent 40%),
    radial-gradient(circle at 90% 20%, var(--pattern-color) 0%, transparent 40%),
    radial-gradient(circle at 10% 60%, var(--pattern-color) 0%, transparent 30%);
  z-index: -1;
  pointer-events: none;
  animation: patternPulse 20s ease-in-out infinite;
  opacity: 0.3;
}

@keyframes patternPulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.7;
  }
}

/* Tipografía */
h1, h2, h3, h4, h5, h6 {
  font-weight: var(--font-weight-bold);
  line-height: 1.2;
  margin-bottom: var(--spacing-sm);
  color: var(--color-text-white);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

h1 {
  font-size: clamp(2rem, 5vw, 4rem);
}

h2 {
  font-size: clamp(1.5rem, 4vw, 3rem);
}

h3 {
  font-size: clamp(1.25rem, 3vw, 2rem);
}

p {
  margin-bottom: var(--spacing-sm);
  color: var(--color-text-light);
}

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

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

/* Contenedor principal */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

/* Utilidades */
.unstyled {
  list-style: none;
}

.text-center {
  text-align: center;
}

.text-uppercase {
  text-transform: uppercase;
}

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

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateX(-20px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.fade-in {
  animation: fadeIn 0.6s ease-out forwards;
  opacity: 0;
}

.fade-in-up {
  animation: fadeInUp 0.8s ease-out forwards;
  opacity: 0;
}

.slide-in {
  animation: slideIn 0.5s ease-out forwards;
  opacity: 0;
}

/* Animación escalonada para múltiples elementos */
.fade-in-delay-1 {
  animation: fadeIn 0.6s ease-out 0.1s forwards;
  opacity: 0;
}

.fade-in-delay-2 {
  animation: fadeIn 0.6s ease-out 0.2s forwards;
  opacity: 0;
}

.fade-in-delay-3 {
  animation: fadeIn 0.6s ease-out 0.3s forwards;
  opacity: 0;
}

/* Skip to content (accesibilidad) */
.skip-to-content {
  position: absolute;
  top: -100px;
  left: 0;
  background: var(--color-primary);
  color: var(--color-bg-dark);
  padding: var(--spacing-xs) var(--spacing-sm);
  z-index: 10000;
  font-weight: var(--font-weight-bold);
}

.skip-to-content:focus {
  top: 0;
}

/* Responsive */
@media (max-width: 768px) {
  .container {
    padding: 0 var(--spacing-sm);
  }
  
  html {
    font-size: 14px;
  }
}