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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

@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;
  }
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: var(--text-body);
  font-weight: 400;
  line-height: 1.5;
  color: var(--color-text);
  background-color: var(--color-bg);
}

h1, h2, h3, h4 {
  margin: 0 0 var(--space-3) 0;
  font-weight: 400;
  line-height: 1.2;
  text-wrap: balance;
}

h1 { font-size: var(--text-h1); font-weight: 300; }
h2 { font-size: var(--text-h2); }
h3 { font-size: var(--text-h3); }
h4 { font-size: var(--text-h4); font-weight: 600; }

p {
  margin: 0 0 var(--space-3) 0;
  max-width: 75ch;
  text-wrap: pretty;
}

a {
  color: var(--color-accent);
}

img {
  max-width: 100%;
  display: block;
}

ul, ol {
  padding-left: var(--space-4);
}

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
}

/* Foco visible consistente en todo el sitio */
:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.container {
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-padding-mobile);
}

@media (min-width: 600px) {
  .container {
    padding-inline: var(--container-padding);
  }
}

.section {
  padding-block: var(--space-6);
}

@media (min-width: 1024px) {
  .section {
    padding-block: var(--space-8);
  }
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  left: var(--space-3);
  top: -100px;
  background: var(--color-accent);
  color: var(--color-text-on-accent);
  padding: var(--space-2) var(--space-3);
  z-index: 1000;
  transition: top var(--duration-base) var(--ease-out);
}

.skip-link:focus {
  top: var(--space-3);
}

/* Elemento de scroll-reveal — ver interactions.js */
[data-reveal] {
  opacity: 0;
  transform: translateY(8px);
  transition: opacity var(--duration-slow) var(--ease-out),
    transform var(--duration-slow) var(--ease-out);
}

[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }
}