/* ============================================================
   RecibIA — Base / Reset
   ============================================================ */

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

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

body {
  margin: 0;
  background: var(--ri-paper);
  color: var(--ri-ink);
  font-family: var(--ri-font-body);
  font-size: var(--ri-text-base);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: inherit;
  text-decoration: none;
}

button {
  font-family: inherit;
  cursor: pointer;
}

h1, h2, h3, h4 {
  font-family: var(--ri-font-display);
  font-weight: 700;
  line-height: 1.1;
  margin: 0;
  letter-spacing: -0.01em;
}

p { margin: 0; }

ul { margin: 0; padding: 0; list-style: none; }

.container {
  width: 100%;
  max-width: var(--ri-container);
  margin: 0 auto;
  padding: 0 var(--ri-space-md);
}

/* Keyboard focus visibility — never remove outline, only restyle */
:focus-visible {
  outline: 2px solid var(--ri-teal-light);
  outline-offset: 3px;
  border-radius: var(--ri-radius-sm);
}

.eyebrow {
  font-family: var(--ri-font-mono);
  font-size: var(--ri-text-xs);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ri-teal);
  display: inline-flex;
  align-items: center;
  gap: var(--ri-space-2xs);
}

.eyebrow::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--ri-gold);
  flex-shrink: 0;
}

.on-dark .eyebrow { color: var(--ri-teal-light); }

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

/* Reveal-on-scroll utility (progressively enhanced via js/app.js) */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity var(--ri-duration) var(--ri-easing),
              transform var(--ri-duration) var(--ri-easing);
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}