/* Base: reset, typography primitives, focus, rhythm */

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

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

body {
  margin: 0;
  background: var(--color-paper);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: var(--text-body);
  line-height: var(--leading-body);
  -webkit-font-smoothing: antialiased;
  overflow-x: clip;
}

h1,
h2,
h3,
h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: var(--leading-snug);
  letter-spacing: -0.02em;
  margin: 0 0 var(--space-4);
  text-wrap: balance;
}

h1 {
  font-size: var(--text-h1);
  line-height: var(--leading-tight);
  letter-spacing: -0.035em;
}

h2 {
  font-size: var(--text-h2);
}

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

p {
  margin: 0 0 var(--space-4);
  max-width: 68ch;
}

a {
  color: var(--color-violet-deep);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
}

a:hover {
  text-decoration-thickness: 2px;
}

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

/* <picture> is a format switch, not a box: the image stays the layout child. */
picture {
  display: contents;
}

ul,
ol {
  padding-left: 1.25em;
}

:focus-visible {
  outline: 2px solid var(--color-violet-deep);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

::selection {
  background: var(--color-lime);
  color: var(--color-on-bright);
}

.wrap {
  width: min(100% - (var(--gutter) * 2), var(--wrap));
  margin-inline: auto;
}

.section {
  padding-block: var(--section-y);
}

.section + .section {
  border-top: 1px solid var(--color-line);
}

/* Tinted band: the page changes depth once, not every section. */
.section--tint {
  border-top: 1px solid var(--color-line);
  background:
    radial-gradient(120% 90% at 100% 0%, var(--color-violet-wash), transparent 58%),
    var(--color-paper-2);
}

/* Page hero: one editorial header shape for every interior page. */
.page-hero {
  display: grid;
  gap: var(--space-4);
  padding-bottom: var(--space-6);
  border-bottom: 1px solid var(--color-line);
}

.page-hero h1 {
  font-size: clamp(2.75rem, 7vw, 6.5rem);
  line-height: 0.96;
  letter-spacing: -0.045em;
  max-width: 16ch;
  margin: 0;
}

.page-hero p {
  margin: 0;
  max-width: 56ch;
  font-size: clamp(1.0625rem, 1.8vw, 1.25rem);
  color: var(--color-muted);
}

.page-hero .eyebrow {
  margin: 0;
}

/* The eyebrow tick becomes a miniature awning on interior pages. */
.page-hero .eyebrow::before {
  width: 32px;
  height: 8px;
  background: repeating-linear-gradient(
    90deg,
    var(--color-violet) 0 20%,
    var(--color-paper) 20% 40%
  );
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-label);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-muted);
  margin: 0 0 var(--space-4);
}

.eyebrow::before {
  content: "";
  width: 18px;
  height: 2px;
  background: var(--color-violet);
}

.skip-link {
  position: absolute;
  left: var(--space-4);
  top: -100px;
  z-index: 100;
  background: var(--color-surface-deep);
  color: var(--color-on-deep);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-sm);
  text-decoration: none;
}

.skip-link:focus {
  top: var(--space-4);
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

@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;
    scroll-behavior: auto !important;
  }
}