/* ==========================================================================
   BASE — reset + estilos globais
   ========================================================================== */

*, *::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-main);
  font-size: var(--fs-body);
  line-height: var(--lh-normal);
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

h1, h2, h3, h4, p, figure {
  margin: 0;
}

h1, h2, h3, h4 {
  font-weight: var(--fw-bold);
  line-height: var(--lh-tight);
  letter-spacing: -0.01em;
}

h1 { font-size: var(--fs-h1); }
h2 { font-size: var(--fs-h2); }
h3 { font-size: var(--fs-h3); }

p {
  color: var(--color-text-secondary);
}

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

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

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

.container {
  width: 100%;
  max-width: var(--container-width);
  margin-inline: auto;
  padding-inline: var(--container-padding);
}

.container--narrow {
  max-width: var(--container-narrow);
}

.section {
  padding-block: var(--space-16);
}

@media (max-width: 640px) {
  .section {
    padding-block: var(--space-12);
  }
}

.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;
}

/* Foco visível para acessibilidade */
:focus-visible {
  outline: 3px solid var(--color-orange);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

/* Fade-up utilitário, usado por IntersectionObserver em utils/reveal.js */
[data-reveal] {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity var(--duration-slow) var(--ease-standard),
              transform var(--duration-slow) var(--ease-standard);
}
[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}
@media (prefers-reduced-motion: reduce) {
  [data-reveal] {
    opacity: 1;
    transform: none;
  }
}