/* ==========================================================================
   base.css
   Reset, document defaults, utilities. No component styles here.
   ========================================================================== */

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

* { margin: 0; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 72px;   /* clears the sticky header on anchor jumps */
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: var(--size-body);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* Faint scanline texture. Purely atmospheric, sits behind everything. */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background: repeating-linear-gradient(
    to bottom,
    rgba(255, 255, 255, 0.014) 0px,
    rgba(255, 255, 255, 0.014) 1px,
    transparent 1px,
    transparent 3px
  );
}

img, svg, video { display: block; max-width: 100%; }
ul, ol { list-style: none; padding: 0; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }

h1, h2, h3, h4 {
  font-family: var(--font-mono);
  font-weight: 500;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

::selection { background: var(--amber); color: var(--bg); }

/* ---- Utilities ----------------------------------------------------------- */

.wrap {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.mono {
  font-family: var(--font-mono);
  font-size: var(--size-micro);
  letter-spacing: 0.06em;
}

.dim   { color: var(--text-dim); }
.faint { color: var(--text-faint); }
.amber { color: var(--amber); }
.cyan  { color: var(--cyan); }

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

:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 3px;
  border-radius: 2px;
}

/* ---- Motion preference --------------------------------------------------- */

@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;
  }
  body::before { display: none; }
}