/* =========================================================
   Macss — Base: reseteo, tipografía y utilidades
   ========================================================= */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-alto);
  -webkit-text-size-adjust: 100%;
}

body {
  background: var(--fondo);
  color: var(--texto);
  font-family: var(--fuente);
  font-size: var(--texto-md);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

body.sin-scroll {
  overflow: hidden;
}

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

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

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

button {
  background: none;
  border: 0;
  cursor: pointer;
}

:focus-visible {
  outline: 1px solid var(--texto);
  outline-offset: 3px;
}

::selection {
  background: var(--acento);
  color: var(--acento-texto);
}

/* Utilidades */
.contenedor {
  width: 100%;
  max-width: var(--ancho-max);
  margin-inline: auto;
  padding-inline: var(--margen);
}

.etiqueta {
  font-size: var(--texto-xs);
  letter-spacing: var(--espaciado-letras);
  text-transform: uppercase;
  color: var(--texto-suave);
}

.titulo-seccion {
  font-size: var(--texto-xl);
  font-weight: 400;
  letter-spacing: -0.02em;
  line-height: 1.1;
}

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

/* Animación de entrada al hacer scroll (la activa js/main.js) */
.revelar {
  opacity: 0;
  transform: translateY(24px);
  transition:
    opacity var(--lento) var(--ease),
    transform var(--lento) var(--ease);
  transition-delay: calc(var(--i, 0) * 70ms);
}

.revelar.visible {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    transition-duration: 1ms !important;
    animation-duration: 1ms !important;
  }
  .revelar {
    opacity: 1;
    transform: none;
  }
}