/*
 * base.css
 * Hard reset + base element defaults.
 * No class names here — only element and pseudo-class selectors.
 * Everything references tokens from tokens.css.
 */

/* ─── Box model & reset ──────────────────────────────────────── */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

/* ─── Root / html ────────────────────────────────────────────── */
html {
  -moz-text-size-adjust: none;
  -webkit-text-size-adjust: none;
  text-size-adjust: none;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-height);
  hanging-punctuation: first last;
}

/* ─── Body ───────────────────────────────────────────────────── */
body {
  min-height: 100dvh;
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
}

/* ─── Media ──────────────────────────────────────────────────── */
img, picture, video, canvas, svg {
  display: block;
  max-width: 100%;
  height: auto;
}

/* ─── Typography ─────────────────────────────────────────────── */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  text-wrap: balance;
  line-height: 1.15;
}

p, li, figcaption {
  text-wrap: pretty;
  max-width: 72ch;
}

/* ─── Lists ──────────────────────────────────────────────────── */
ul[role="list"],
ol[role="list"] {
  list-style: none;
}

/* ─── Forms ──────────────────────────────────────────────────── */
input, button, textarea, select {
  font: inherit;
  color: inherit;
}

button {
  cursor: pointer;
  background: none;
  border: none;
}

/* ─── Links ──────────────────────────────────────────────────── */
a {
  color: inherit;
  text-decoration: none;
}

/* ─── Tables ─────────────────────────────────────────────────── */
table {
  border-collapse: collapse;
  width: 100%;
}

/* ─── Focus ──────────────────────────────────────────────────── */
:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

/* ─── Selection ──────────────────────────────────────────────── */
::selection {
  background: oklch(from var(--color-primary) l c h / 0.2);
  color: var(--color-text);
}

/* ─── Interactive transitions (only on interactive elements) ─── */
a, button, [role="button"], [role="link"] {
  transition:
    color             var(--transition-interactive),
    background-color  var(--transition-interactive),
    border-color      var(--transition-interactive),
    box-shadow        var(--transition-interactive),
    opacity           var(--transition-interactive);
}

/* ─── Reduced motion ─────────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration:        0.01ms !important;
    animation-iteration-count: 1      !important;
    transition-duration:       0.01ms !important;
    scroll-behavior:           auto   !important;
  }
}

/* ─── Screen-reader only utility ─────────────────────────────── */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* Make skip link visible on focus */
.sr-only:focus,
.sr-only:focus-within {
  position: static;
  width: auto;
  height: auto;
  overflow: visible;
  clip: auto;
  white-space: normal;
}