/* Design tokens ----------------------------------------------------------- */
:root {
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica,
    Arial, sans-serif;
  --font-serif: Georgia, Cambria, "Times New Roman", Times, serif;

  --color-bg: #ffffff;
  --color-text: #1a1a1a;
  --color-muted: #6b6b6b;
  --color-faint: #ededed;
  --color-link: #1a1a1a;
  --color-accent: #2563c4;

  --measure: 38rem;        /* comfortable reading width */
  --space: 1.5rem;
  --radius: 8px;
}

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

html {
  -webkit-text-size-adjust: 100%;
  font-size: 18px;
}

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  line-height: 1.65;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* Layout ------------------------------------------------------------------ */
.page {
  max-width: var(--measure);
  margin: 0 auto;
  padding: 4rem 1.5rem 6rem;
}

/* Header / navigation ----------------------------------------------------- */
.site-header {
  margin-bottom: 3.5rem;
}

.site-header .name {
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin: 0 0 0.75rem;
}

.site-header .name a {
  color: var(--color-text);
  text-decoration: none;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
  font-size: 0.95rem;
}

.site-nav a {
  color: var(--color-muted);
  text-decoration: none;
  transition: color 0.15s ease;
}

.site-nav a:hover {
  color: var(--color-text);
}

.site-nav a[aria-current="page"] {
  color: var(--color-text);
  font-weight: 600;
}

/* Typography -------------------------------------------------------------- */
h1,
h2,
h3 {
  line-height: 1.25;
  letter-spacing: -0.02em;
  font-weight: 600;
}

h1 {
  font-size: 1.9rem;
  margin: 0 0 1.5rem;
}

h2 {
  font-size: 1.25rem;
  margin: 2.75rem 0 0.75rem;
}

p {
  margin: 0 0 1.25rem;
}

a {
  color: var(--color-link);
  text-decoration: underline;
  text-decoration-color: var(--color-faint);
  text-underline-offset: 3px;
  text-decoration-thickness: 1.5px;
  transition: text-decoration-color 0.15s ease;
}

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

.lead {
  font-size: 1.15rem;
  color: var(--color-text);
}

.muted {
  color: var(--color-muted);
}

/* Lists ------------------------------------------------------------------- */
.link-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.link-list li {
  padding: 1rem 0;
  border-top: 1px solid var(--color-faint);
}

.link-list li:last-child {
  border-bottom: 1px solid var(--color-faint);
}

.link-list .title {
  display: block;
  font-weight: 600;
  text-decoration: none;
  color: var(--color-text);
}

.link-list .title:hover {
  color: var(--color-accent);
}

.link-list .meta {
  display: block;
  font-size: 0.9rem;
  color: var(--color-muted);
  margin-top: 0.15rem;
}

/* Footer ------------------------------------------------------------------ */
.site-footer {
  margin-top: 4rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-faint);
  font-size: 0.9rem;
  color: var(--color-muted);
}

.site-footer a {
  color: var(--color-muted);
}

/* Dark mode --------------------------------------------------------------- */
@media (prefers-color-scheme: dark) {
  :root {
    --color-bg: #111111;
    --color-text: #ededed;
    --color-muted: #9a9a9a;
    --color-faint: #2a2a2a;
    --color-link: #ededed;
    --color-accent: #6ea8ff;
  }
}

/* Small screens ----------------------------------------------------------- */
@media (max-width: 480px) {
  html {
    font-size: 17px;
  }
  .page {
    padding: 2.5rem 1.25rem 4rem;
  }
}