/* ==========================================================================
   HORNO RAÍZ — REINICIO Y ESTILOS BASE (ACCESIBILIDAD Y TIPOGRAFÍA)
   ========================================================================== */

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  color-scheme: light;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}

body {
  font-family: var(--font-sans);
  font-size: var(--font-size-base);
  line-height: var(--line-height-base);
  color: var(--color-text);
  background-color: var(--color-bg);
  background-image: radial-gradient(circle at 10% 10%, rgba(194, 97, 22, 0.02) 0%, transparent 40%),
                    radial-gradient(circle at 90% 80%, rgba(67, 84, 61, 0.02) 0%, transparent 40%);
  background-attachment: fixed;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Enlace directo accesible para lectores de pantalla y teclado */
.skip-link {
  position: absolute;
  top: -100px;
  left: var(--space-4);
  background: var(--color-primary-dark);
  color: var(--color-text-inverse);
  padding: var(--space-3) var(--space-6);
  font-weight: 600;
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
  z-index: 9999;
  text-decoration: none;
  transition: top var(--transition-fast);
  box-shadow: var(--shadow-lg);
}

.skip-link:focus {
  top: 0;
  outline: 3px solid var(--color-gold);
  outline-offset: 2px;
}

/* Foco visible de accesibilidad para navegación por teclado */
:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 3px;
  border-radius: var(--radius-xs);
}

/* Selección de texto armoniosa con la identidad */
::selection {
  background-color: var(--color-primary-light);
  color: var(--color-text-inverse);
}

/* Tipografía de encabezados */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-serif);
  color: var(--color-text);
  font-weight: 700;
  line-height: var(--line-height-tight);
  letter-spacing: var(--letter-spacing-tight);
}

h1 {
  font-size: clamp(2.25rem, 5vw + 1rem, var(--font-size-5xl));
  margin-bottom: var(--space-4);
}

h2 {
  font-size: clamp(1.75rem, 3.5vw + 0.5rem, var(--font-size-3xl));
  margin-bottom: var(--space-4);
}

h3 {
  font-size: clamp(1.35rem, 2vw + 0.5rem, var(--font-size-2xl));
  margin-bottom: var(--space-3);
}

h4 {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-2);
}

p {
  margin-bottom: var(--space-4);
  color: var(--color-text-muted);
}

p.lead {
  font-size: var(--font-size-lg);
  line-height: var(--line-height-snug);
  color: var(--color-text);
  font-weight: 400;
}

a {
  color: var(--color-primary-dark);
  text-decoration-thickness: 1.5px;
  text-underline-offset: 3px;
  transition: color var(--transition-fast), text-decoration-color var(--transition-fast);
}

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

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

ul, ol {
  list-style-position: inside;
  margin-bottom: var(--space-4);
  color: var(--color-text-muted);
}

hr {
  border: none;
  height: 1px;
  background-color: var(--color-border);
  margin: var(--space-8) 0;
}

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

.sr-only-focusable:active,
.sr-only-focusable:focus {
  position: static !important;
  width: auto !important;
  height: auto !important;
  overflow: visible !important;
  clip: auto !important;
  white-space: normal !important;
}