/* Reset and element defaults.
   Physical properties (margin-left, right:, text-align: left) are banned site-wide —
   Arabic mirrors the entire layout. Use logical properties only. */

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

* {
  margin: 0;
  padding: 0;
}

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

body {
  background: var(--limestone);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: var(--size-body);
  font-weight: 400;
  line-height: var(--leading-body);
  min-block-size: 100vh;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3,
h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: var(--leading-display);
  text-wrap: balance;
}

h1 {
  font-size: var(--size-display);
  letter-spacing: var(--tracking-display);
}

h2 {
  font-size: var(--size-title);
  letter-spacing: var(--tracking-display);
}

h3 {
  font-size: var(--size-lead);
}

h4 {
  font-size: var(--size-body);
}

p,
li {
  max-inline-size: var(--measure-text);
}

a {
  color: var(--verdigris);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.15em;
}

a:hover {
  color: var(--ink);
}

img,
svg {
  block-size: auto;
  max-inline-size: 100%;
}

ul,
ol {
  padding-inline-start: var(--space-m);
}

/* Utility ------------------------------------------------------------------ */

.mono {
  font-family: var(--font-mono);
  font-weight: 500;
  letter-spacing: var(--tracking-mono);
  /* Digits stay Western in both languages (SPEC.md §5, fonts/README.md). */
  font-variant-numeric: lining-nums tabular-nums;
}

.fine {
  font-size: var(--size-fine);
  color: var(--slate);
}

.visually-hidden {
  position: absolute;
  inline-size: 1px;
  block-size: 1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

/* Focus -------------------------------------------------------------------- */

:focus-visible {
  outline: var(--rule-heavy) solid var(--brass);
  outline-offset: 3px;
}

.skip-link {
  position: absolute;
  inset-block-start: var(--space-2xs);
  inset-inline-start: var(--space-2xs);
  z-index: 100;
  background: var(--ink);
  color: var(--limestone);
  padding: var(--space-2xs) var(--space-s);
  transform: translateY(-200%);
}

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

@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;
  }
}