/**
 * Tensei Logic - Base Styles, Reset & Typography
 * Reset moderno, accesibilidad y tipografía jerárquica
 */

/* ==========================================================================
   Reset & Normalización
   ========================================================================== */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 100%;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  color-scheme: dark;
}

body {
  min-height: 100vh;
  background-color: var(--bg-primary);
  color: var(--text-secondary);
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.65;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  position: relative;
}

/* ==========================================================================
   Accesibilidad & Foco
   ========================================================================== */
:focus {
  outline: none;
}

:focus-visible {
  outline: var(--focus-ring);
  outline-offset: var(--focus-offset);
  border-radius: var(--radius-sm);
}

.skip-to-content {
  position: absolute;
  top: -100px;
  left: 1.5rem;
  background: var(--accent-orange);
  color: var(--text-on-accent);
  font-weight: 700;
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius-sm);
  z-index: 1000;
  transition: top var(--transition-fast);
  text-decoration: none;
}

.skip-to-content:focus-visible {
  top: 1rem;
}

.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;
}

/* ==========================================================================
   Tipografía & Jerarquía
   ========================================================================== */
h1, h2, h3, h4, h5, h6 {
  color: var(--text-primary);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

h1 {
  font-size: clamp(2.25rem, 4.5vw + 1rem, 3.75rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.15;
}

h2 {
  font-size: clamp(1.75rem, 2.5vw + 0.8rem, 2.75rem);
  font-weight: 700;
  letter-spacing: -0.025em;
  margin-bottom: var(--space-md);
}

h3 {
  font-size: clamp(1.25rem, 1.5vw + 0.5rem, 1.5rem);
  font-weight: 600;
  letter-spacing: -0.015em;
  margin-bottom: var(--space-sm);
}

h4 {
  font-size: 1.125rem;
  font-weight: 600;
}

p {
  margin-bottom: var(--space-md);
  color: var(--text-secondary);
}

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

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

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

button, input, textarea {
  font: inherit;
  color: inherit;
}

ul, ol {
  list-style: none;
}

@media (max-width: 640px) {
  :root {
    --container-padding: 1rem;
  }
}

.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);
  box-sizing: border-box;
}

.section {
  padding-top: var(--space-3xl);
  padding-bottom: var(--space-3xl);
  position: relative;
}

@media (min-width: 768px) {
  .section {
    padding-top: var(--space-4xl);
    padding-bottom: var(--space-4xl);
  }
}

.section-header {
  text-align: center;
  max-width: 680px;
  margin-left: auto;
  margin-right: auto;
  margin-bottom: var(--space-3xl);
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-orange-light);
  background-color: var(--accent-orange-glow);
  border: 1px solid var(--border-accent);
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-full);
  margin-bottom: var(--space-md);
}

.section-tag::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--accent-orange);
}

.section-subtitle {
  font-size: 1.125rem;
  color: var(--text-tertiary);
  max-width: 580px;
  margin-left: auto;
  margin-right: auto;
}

/* ==========================================================================
   Soporte Reducción de Movimiento
   ========================================================================== */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}