:root {
  color-scheme: light;
  --paper: oklch(98.6% 0.006 88);
  --sheet: oklch(100% 0 0);
  --ink: oklch(20% 0.018 245);
  --muted: oklch(46% 0.02 245);
  --faint: oklch(74% 0.018 245);
  --rule: oklch(89% 0.012 245);
  --accent: oklch(45% 0.12 188);
  --accent-ink: oklch(28% 0.09 188);
  --accent-soft: oklch(94% 0.035 188);
  --warning-soft: oklch(96% 0.045 78);
  --radius-sm: 5px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --shadow: 0 18px 45px rgb(31 43 54 / 0.08);
  --font-body: "Avenir Next", Avenir, "Segoe UI", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: "SF Mono", "Roboto Mono", ui-monospace, Menlo, Consolas, monospace;
}

* {
  box-sizing: border-box;
}

html {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  line-height: 1.58;
}

body {
  margin: 0;
}

a {
  color: var(--accent-ink);
  text-decoration-color: color-mix(in oklch, var(--accent) 35%, transparent);
  text-underline-offset: 0.18em;
  transition-duration: 160ms;
  transition-property: color, text-decoration-color, transform;
  transition-timing-function: cubic-bezier(0.16, 1, 0.3, 1);
}

a:hover {
  color: var(--accent);
  text-decoration-color: var(--accent);
}

a:active {
  transform: translateY(1px);
}

a:focus-visible {
  outline: 3px solid color-mix(in oklch, var(--accent) 35%, white);
  outline-offset: 4px;
}

.skip-link {
  background: var(--ink);
  color: var(--sheet);
  left: 16px;
  padding: 10px 14px;
  position: absolute;
  top: -48px;
  z-index: 10;
}

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

.page-shell {
  min-height: 100vh;
  padding: 24px;
}

.frame {
  background:
    linear-gradient(90deg, rgb(255 255 255 / 0.72), rgb(255 255 255 / 0)),
    var(--sheet);
  box-shadow: var(--shadow);
  margin: 0 auto;
  max-width: 1120px;
  min-height: calc(100vh - 48px);
  overflow: clip;
}

.site-header,
.site-footer {
  align-items: center;
  display: flex;
  gap: 20px;
  justify-content: space-between;
  padding: 22px clamp(22px, 5vw, 64px);
}

.site-header {
  border-bottom: 1px solid var(--rule);
}

.brand {
  align-items: center;
  color: var(--ink);
  display: inline-flex;
  font-weight: 700;
  gap: 12px;
  letter-spacing: -0.012em;
  text-decoration: none;
}

.brand-icon {
  border-radius: var(--radius-sm);
  display: block;
  height: 32px;
  width: 32px;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
}

.nav a {
  color: var(--muted);
  font-size: 14px;
  min-height: 40px;
  padding-top: 9px;
}

.nav a[aria-current="page"] {
  color: var(--ink);
  font-weight: 700;
  text-decoration-color: var(--accent);
}

main {
  padding: clamp(34px, 6vw, 72px) clamp(22px, 5vw, 64px);
}

.intro {
  max-width: 760px;
}

.intro > * {
  min-width: 0;
}

.eyebrow {
  color: var(--accent-ink);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.02em;
  margin: 0 0 18px;
}

h1,
h2,
h3 {
  letter-spacing: -0.022em;
  line-height: 1.07;
  margin: 0;
  text-wrap: balance;
}

h1 {
  font-size: clamp(40px, 6vw, 64px);
  max-width: 720px;
  overflow-wrap: anywhere;
  word-break: break-word;
}

.word-unit {
  display: inline-block;
}

h2 {
  font-size: clamp(25px, 4vw, 38px);
  margin-top: 44px;
}

h3 {
  font-size: 19px;
  letter-spacing: -0.012em;
  margin-top: 28px;
}

p,
li {
  color: var(--muted);
  font-size: 17px;
  text-wrap: pretty;
}

p {
  margin: 16px 0 0;
  max-width: 68ch;
}

ul {
  margin: 14px 0 0;
  padding-left: 1.15rem;
}

.lede {
  color: var(--ink);
  font-size: clamp(20px, 2.6vw, 28px);
  letter-spacing: -0.012em;
  line-height: 1.28;
  margin-top: 26px;
}

code {
  background: var(--accent-soft);
  border-radius: var(--radius-sm);
  color: var(--accent-ink);
  font-family: var(--font-mono);
  font-size: 0.88em;
  padding: 0.14em 0.34em;
}

.link-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 44px;
}

.link-card {
  background: color-mix(in oklch, var(--accent-soft) 34%, white);
  border-radius: var(--radius-md);
  box-shadow: inset 0 0 0 1px var(--rule);
  color: var(--ink);
  min-height: 164px;
  padding: 22px;
  text-decoration: none;
}

.link-card strong {
  display: block;
  font-size: 18px;
}

.link-card span {
  color: var(--muted);
  display: block;
  font-size: 15px;
  margin-top: 10px;
}

.content {
  max-width: 820px;
}

.meta-box {
  background: var(--warning-soft);
  border-radius: var(--radius-md);
  box-shadow: inset 0 0 0 1px color-mix(in oklch, var(--warning-soft) 75%, var(--rule));
  margin-top: 30px;
  padding: 18px 20px;
}

.meta-box p {
  color: var(--ink);
  font-size: 15px;
  margin: 6px 0 0;
}

.site-footer {
  border-top: 1px solid var(--rule);
  color: var(--muted);
  font-size: 14px;
}

@media (hover: hover) {
  .link-card:hover {
    box-shadow: inset 0 0 0 1px color-mix(in oklch, var(--accent) 55%, var(--rule));
    transform: translateY(-2px);
  }
}

@media (max-width: 760px) {
  .page-shell {
    padding: 0;
  }

  .frame {
    box-shadow: none;
    min-height: 100vh;
  }

  .site-header,
  .site-footer {
    align-items: flex-start;
    flex-direction: column;
    padding: 18px 20px;
  }

  main {
    padding: 34px 20px 48px;
  }

  .intro,
  .link-grid {
    grid-template-columns: 1fr;
  }

  h1 {
    font-size: clamp(35px, 10vw, 42px);
  }

  .mobile-line {
    display: block;
  }

}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 1ms !important;
  }
}