/* Base: reset, document typography, page shell. */

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

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

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--black);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: var(--body);
  font-weight: 400;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  font-synthesis: none;
}

h1, h2, h3, h4, h5, h6, p, figure, blockquote, dl, dd, ul, ol {
  margin: 0;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 500;
  color: var(--text-display);
}

ul, ol {
  padding: 0;
}

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

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

button {
  cursor: pointer;
}

a {
  color: var(--interactive);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

code, kbd, samp, pre {
  font-family: var(--font-code);
  font-size: var(--body-sm);
}

::selection {
  background: var(--text-display);
  color: var(--black);
}

:focus-visible {
  outline: 1px solid var(--text-display);
  outline-offset: 2px;
}

[hidden] {
  display: none !important;
}

/* Page shell: one centered column with responsive gutters. */
.shell {
  width: 100%;
  max-width: calc(var(--page-max) + 2 * var(--gutter));
  margin-inline: auto;
  padding-inline: var(--gutter);
}

main.shell {
  flex: 1;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    transition-duration: 0ms !important;
  }
}