/*
  Baseline do documento: reset, tipografia, foco, alvos de toque e motion
  reduzido. Este arquivo implementa os invariantes do CONTEXT.md e nao deve
  ser enfraquecido por um projeto. Personalize valores pelos tokens.
*/

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

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

body {
  min-width: 320px;
  margin: 0;
  background: var(--color-background);
  color: var(--color-foreground);
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  letter-spacing: 0;
  -webkit-font-smoothing: antialiased;
}

/* Midia com dimensoes estaveis: evita deslocamento de layout na carga. */
img,
picture,
video,
canvas,
svg,
iframe {
  display: block;
  max-width: 100%;
}

img,
video {
  height: auto;
}

/* Palavras longas e conteudo localizado nao devem estourar o container. */
p,
li,
h1,
h2,
h3,
h4,
dd,
dt,
figcaption {
  overflow-wrap: break-word;
}

h1,
h2,
h3,
h4 {
  margin: 0 0 var(--space-3);
  font-family: var(--font-display);
  font-weight: var(--weight-bold);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  text-wrap: balance;
}

h1 { font-size: var(--text-3xl); line-height: var(--leading-tight); }
h2 { font-size: var(--text-2xl); }
h3 { font-size: var(--text-xl); }
h4 { font-size: var(--text-lg); }

p,
ul,
ol,
dl {
  margin: 0 0 var(--space-4);
}

p {
  max-width: var(--measure);
}

a {
  color: inherit;
  text-underline-offset: 0.18em;
}

/* Foco visivel e obrigatorio e nunca deve ser removido. */
:focus-visible {
  outline: var(--focus-ring) solid var(--color-focus);
  outline-offset: var(--focus-offset);
  border-radius: var(--radius-sm);
}

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

/* Controles interativos respeitam o alvo minimo de toque. */
button,
[type="button"],
[type="submit"],
[type="reset"],
select,
summary {
  min-height: var(--touch-target);
  cursor: pointer;
}

table {
  border-collapse: collapse;
  width: 100%;
}

/* Conteudo largo rola no proprio container, nunca no corpo da pagina. */
.scroll-x {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

/* Numeros em coluna alinham. */
.tabular {
  font-variant-numeric: tabular-nums;
}

/* Micro-rotulo em caixa alta: unico lugar com tracking diferente de zero. */
.label {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
  color: var(--color-muted);
}

/* Texto disponivel a leitores de tela, invisivel na tela. */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

/* Skip link: primeiro elemento focavel da pagina. */
.skip-link {
  position: absolute;
  top: var(--space-2);
  left: var(--space-2);
  z-index: var(--z-toast);
  padding: var(--space-2) var(--space-4);
  background: var(--color-surface);
  color: var(--color-foreground);
  border: var(--border-hairline) solid var(--color-border-strong);
  border-radius: var(--radius-sm);
  text-decoration: none;
  transform: translateY(-200%);
}

.skip-link:focus-visible {
  transform: translateY(0);
}

/*
  Motion reduzido: a experiencia continua completa e legivel.
  Nenhum conteudo pode depender do fim de uma animacao para aparecer.
*/
@media (prefers-reduced-motion: reduce) {
  html:not([data-motion="full"]) {
    scroll-behavior: auto;
  }

  html:not([data-motion="full"]) *,
  html:not([data-motion="full"]) *::before,
  html:not([data-motion="full"]) *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}