/* Rocksosint · base
 * Reset, tipografia, foco e utilitários mínimos. Só consome tokens.css.
 */

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

html,
body {
  overflow-x: clip;
}

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-padding-top: var(--sp-9);
}

body {
  margin: 0;
  min-height: 100dvh;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: var(--weight-regular);
  line-height: var(--leading-body);
  font-feature-settings: "ss01", "cv11";
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

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

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

button {
  cursor: pointer;
}

button:disabled {
  cursor: not-allowed;
}

/* Títulos: sempre romanos, peso decide hierarquia */
h1,
h2,
h3,
h4 {
  margin: 0;
  color: var(--text-strong);
  font-family: var(--font-display);
  font-style: normal;
  font-weight: var(--weight-heavy);
  line-height: var(--leading-snug);
  letter-spacing: var(--tracking-heading);
  text-wrap: balance;
  overflow-wrap: anywhere;
  min-width: 0;
}

h1 {
  font-size: var(--text-display);
  line-height: var(--leading-tight);
  letter-spacing: var(--tracking-display);
}

h2 {
  font-size: var(--text-display-s);
  line-height: 1.05;
  letter-spacing: var(--tracking-display);
}

h3 {
  font-size: var(--text-lg);
}

h4 {
  font-size: var(--text-md);
}

/* Contraste de peso dentro do título (DESIGN.md §3) */
.t-light {
  font-weight: var(--weight-light);
}

p {
  margin: 0;
  max-width: var(--measure);
  text-wrap: pretty;
}

a {
  color: inherit;
  text-decoration-color: var(--line-strong);
  text-underline-offset: 0.2em;
  transition: text-decoration-color var(--dur-micro) var(--ease-out);
}

a:hover {
  text-decoration-color: var(--accent);
}

code,
kbd,
samp,
.t-data {
  font-family: var(--font-data);
  font-size: 0.92em;
  font-variant-numeric: tabular-nums slashed-zero;
}

.t-num {
  font-variant-numeric: tabular-nums;
}

.t-muted {
  color: var(--text-muted);
}

/* Rótulo de arquivo: única caixa alta permitida (11-12px, tracking largo) */
.t-label {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
  color: var(--text-muted);
}

::selection {
  background: var(--accent-fill);
  color: var(--on-accent);
}

/* Foco: aparece na hora, nunca animado */
:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 3px;
  border-radius: var(--r-xs);
}

:focus:not(:focus-visible) {
  outline: none;
}

.skip-link {
  position: absolute;
  left: var(--sp-4);
  top: var(--sp-4);
  z-index: var(--z-toast);
  padding: var(--sp-3) var(--sp-4);
  background: var(--text-strong);
  color: var(--text-inverse);
  border-radius: var(--r-sm);
  transform: translateY(-200%);
}

.skip-link:focus-visible {
  transform: none;
}

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

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

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 150ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 150ms !important;
    scroll-behavior: auto !important;
  }
}

/* O atributo hidden sempre vence: componentes com display próprio (.state, .field…)
   não podem reaparecer só porque a classe define display. */
[hidden] {
  display: none !important;
}