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

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

@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;
  }
}

body {
  margin: 0;
  background: var(--c-ink);
  color: var(--c-text-primary);
  font-family: var(--f-sans);
  font-size: var(--fs-body);
  line-height: var(--lh-normal);
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body.has-custom-cursor, body.has-custom-cursor a, body.has-custom-cursor button {
  cursor: none;
}

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

a { color: inherit; text-decoration: none; }

button {
  font: inherit;
  color: inherit;
  background: none;
  border: none;
  cursor: pointer;
}

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

ul, ol { margin: 0; padding: 0; list-style: none; }

h1, h2, h3, h4, p, figure { margin: 0; }

::selection {
  background: var(--c-signal);
  color: var(--c-ink);
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
[tabindex]:focus-visible {
  outline: 2px solid var(--c-signal);
  outline-offset: 3px;
  border-radius: var(--radius-soft);
}

h1 {
  font-family: var(--f-serif);
  font-size: var(--fs-h1);
  line-height: var(--lh-tight);
  letter-spacing: var(--ls-tight);
  font-weight: 460;
  font-optical-sizing: auto;
}

h2 {
  font-family: var(--f-serif);
  font-size: var(--fs-h2);
  line-height: var(--lh-snug);
  letter-spacing: var(--ls-tight);
  font-weight: 460;
  font-optical-sizing: auto;
}

h3 {
  font-family: var(--f-serif);
  font-size: var(--fs-h3);
  line-height: var(--lh-snug);
  font-weight: 500;
  font-optical-sizing: auto;
}

.italic-accent {
  font-style: italic;
  font-optical-sizing: auto;
}

.nav-island__logo,
.footer__brand {
  font-optical-sizing: auto;
}

.body-lg { font-size: var(--fs-body-lg); line-height: var(--lh-relaxed); }

.mono-tag {
  font-family: var(--f-mono);
  font-size: var(--fs-caption);
  letter-spacing: var(--ls-caps);
  text-transform: uppercase;
  color: var(--c-mist);
}

.mono-num {
  font-family: var(--f-mono);
  font-size: var(--fs-mono-num);
  letter-spacing: var(--ls-mono-lg);
  font-weight: 500;
  font-variant-numeric: tabular-nums;
}

.container {
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

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

@media (max-width: 720px) {
  .section { padding-block: var(--section-gap-mobile); }
}

.hairline {
  border: none;
  border-top: 1px solid var(--c-line);
  margin: 0;
}

.skip-link {
  position: absolute;
  left: 16px;
  top: -60px;
  background: var(--c-signal);
  color: var(--c-ink);
  padding: 12px 20px;
  font-family: var(--f-mono);
  font-size: 13px;
  z-index: 10000;
  transition: top var(--dur-fast) var(--ease-out-expo);
}

.skip-link:focus {
  top: 16px;
}

[data-reveal] {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity var(--dur-reveal) var(--ease-out-expo),
              transform var(--dur-reveal) var(--ease-out-expo);
  will-change: opacity, transform;
}

[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  [data-reveal] { opacity: 1; transform: none; }
}