/**
 * AlfaBeta Eduentretenimiento S.A.S. - Guardianes del Mundo Digital
 * Estilos Base, Tipografía y Fondos — VERSIÓN LIGHT (CLARA)
 */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Space+Grotesk:wght@400;500;600;700&display=swap');

/* ==========================================================================
   RESET MODERNO & CAJA RESPONSIVE
   ========================================================================== */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  transition: font-size var(--transition-fast);
}

html.font-scale-up {
  font-size: 18px;
}

html.font-scale-down {
  font-size: 14.5px;
}

body {
  font-family: var(--font-body);
  font-size: var(--font-size-body);
  line-height: var(--line-height-normal);
  color: var(--color-text-primary);
  background-color: var(--color-bg-deep);
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
  /* Fondo Gris Plata Líquido LUMINOSO (estilo.png) */
  background-image:
    radial-gradient(circle at 10% 8%, rgba(76, 165, 187, 0.07) 0%, transparent 45%),
    radial-gradient(circle at 90% 12%, rgba(207, 108, 158, 0.06) 0%, transparent 45%),
    radial-gradient(circle at 50% 50%, rgba(203, 213, 225, 0.35) 0%, transparent 60%),
    radial-gradient(circle at 80% 85%, rgba(95, 211, 227, 0.06) 0%, transparent 40%);
  background-attachment: fixed;
}

/* ==========================================================================
   SELECCIÓN & SCROLLBAR
   ========================================================================== */
::selection {
  background-color: #5FD3E3;
  color: #0F172A;
}

::-moz-selection {
  background-color: #5FD3E3;
  color: #0F172A;
}

::-webkit-scrollbar {
  width: 9px;
}

::-webkit-scrollbar-track {
  background: #F1F5F9;
}

::-webkit-scrollbar-thumb {
  background: var(--color-liquid-silver);
  border-radius: var(--radius-pill);
  border: 2px solid #F1F5F9;
  transition: background var(--transition-fast);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-cyber-cyan);
}

:focus-visible {
  outline: 2px solid var(--color-cyber-cyan);
  outline-offset: 3px;
}

/* ==========================================================================
   TIPOGRAFÍA ESTRUCTURAL (Space Grotesk & Inter)
   ========================================================================== */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: var(--line-height-snug);
  color: var(--color-text-primary);
  letter-spacing: var(--tracking-tight);
}

h1 {
  font-size: var(--font-size-h1);
  letter-spacing: var(--tracking-tightest);
  line-height: var(--line-height-tight);
}

h2 {
  font-size: var(--font-size-h2);
  letter-spacing: var(--tracking-tighter);
}

h3 {
  font-size: var(--font-size-h3);
  letter-spacing: var(--tracking-tight);
}

h4 {
  font-size: var(--font-size-h4);
  letter-spacing: var(--tracking-normal);
}

p {
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--space-md);
  text-wrap: pretty;
}

p:last-child {
  margin-bottom: 0;
}

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

img,
video,
svg {
  display: block;
  max-width: 100%;
  height: auto;
}

ul,
ol {
  list-style: none;
}

button,
input,
textarea,
select {
  font: inherit;
  color: inherit;
  background: transparent;
  border: none;
}

/* ==========================================================================
   CONTENEDORES 100% RESPONSIVE (Flexbox & Grid para Elementor Free)
   ========================================================================== */
.container {
  width: 100%;
  max-width: var(--container-max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
}

.container-narrow {
  width: 100%;
  max-width: var(--container-narrow-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
}

.section-spacing {
  padding-top: var(--space-4xl);
  padding-bottom: var(--space-4xl);
}

@media (max-width: 768px) {
  .section-spacing {
    padding-top: var(--space-2xl);
    padding-bottom: var(--space-2xl);
  }
}

/* Clases de gradiente y acento claro */
.text-cyan {
  color: var(--color-cyber-cyan);
}

.text-magenta {
  color: var(--color-tech-magenta);
}

.text-silver {
  color: #64748B;
}

.gradient-text-cyan-magenta {
  background: linear-gradient(120deg, #327C8E 0%, #4CA5BB 35%, #B97599 65%, #CF6C9E 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.gradient-text-silver {
  background: linear-gradient(135deg, #0F172A 0%, #334155 60%, #64748B 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}