/* =============================================================
   BASE — reset + element defaults.
   Reads tokens only. No component styles here.
   ============================================================= */

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

* { margin: 0; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + var(--space-md));
}

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

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

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

p { text-wrap: pretty; }

a {
  color: var(--color-accent);
  text-decoration-color: color-mix(in srgb, currentColor 35%, transparent);
  text-underline-offset: 0.2em;
  transition: color var(--dur-fast) var(--ease);
}
a:hover { color: var(--color-accent-hover); }

ul, ol { padding-left: 1.15em; }
li + li { margin-top: var(--space-3xs); }

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

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

code, kbd, samp {
  font-family: var(--font-mono);
  font-size: 0.9em;
}

hr {
  border: 0;
  border-top: var(--border-width) solid var(--color-border);
}

::selection {
  background-color: var(--color-accent-soft);
  color: var(--color-heading);
}

:focus-visible {
  outline: var(--focus-ring-width) solid var(--color-focus);
  outline-offset: var(--focus-ring-offset);
  border-radius: var(--radius-xs);
}

@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;
  }
}