:root {
  --slate: #41484d;
  --teal: #67939b;
  --mist: #e6eef4;
  --mist-ink: #cadfed;
  --ink: #33424a;
  --muted: #5f717a;
  --rule: #d3dfe7;
  --link: #7f1d1d;
  --link-hover: #b05255;
  --serif: Charter, "Bitstream Charter", "Sitka Text", Cambria, Georgia, serif;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

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

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

body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  margin: 0;
  background: #fff;
  color: var(--ink);
  font: 1.0625rem/1.7 var(--serif);
}
@media (min-width: 40rem) { body { font-size: 1.125rem; } }

.wrap { width: min(100% - 2.5rem, 42rem); margin-inline: auto; }

/* Masthead */

.masthead { background: var(--slate); border-bottom: 3px solid var(--teal); }
.masthead .wrap { padding-block: 2rem 0; }

.site-name { margin: 0; font-size: 1.875rem; line-height: 1.15; }
.site-name a { color: #fff; text-decoration: none; }

.tagline {
  margin: .35rem 0 0;
  color: var(--mist-ink);
  font: 600 .75rem/1.4 var(--sans);
  letter-spacing: .14em;
  text-transform: uppercase;
}

.nav ul {
  display: flex;
  flex-wrap: wrap;
  gap: 0 1.5rem;
  margin: 1.25rem 0 0;
  padding: 0;
  list-style: none;
  font: .9375rem/1.4 var(--sans);
}
.nav a {
  display: block;
  padding: .5rem 0 .6rem;
  border-bottom: 3px solid transparent;
  color: #d5e2ea;
  text-decoration: none;
}
.nav a:hover { color: #fff; }
.nav a[aria-current="page"] { color: #fff; border-bottom-color: var(--mist-ink); }

/* Content */

main { flex: 1; padding-block: 2.5rem 3.5rem; }

h1, h2, h3 { color: var(--slate); line-height: 1.25; text-wrap: balance; }
h1 { margin: 0 0 1.25rem; font-size: 2.125rem; font-weight: 400; }
h2 { clear: both; margin: 2.75rem 0 .9rem; font-size: 1.375rem; font-weight: 600; }
h3 { margin: 2rem 0 .4rem; font-size: 1.125rem; font-weight: 600; }
h2 + h3 { margin-top: 1.25rem; }

p, ul, blockquote { margin: 0 0 1.1rem; }

a { color: var(--link); text-decoration-thickness: 1px; text-underline-offset: .18em; }
a:hover { color: var(--link-hover); }
a:focus-visible { outline: 2px solid var(--teal); outline-offset: 2px; }

.lead { color: var(--slate); font-size: 1.1875rem; }

blockquote {
  padding: .1rem 0 .1rem 1.25rem;
  border-left: 3px solid var(--teal);
  color: var(--slate);
  font-style: italic;
}
blockquote p { margin: 0; }

.books { padding-left: 1.25rem; }
.books li { margin-bottom: .3rem; }
.books li::marker { color: var(--teal); }

.n { margin-right: .2rem; color: var(--teal); }

/* Images */

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

figure { margin: 2rem 0; }
figcaption { margin-top: .6rem; color: var(--muted); font: .8125rem/1.5 var(--sans); }

.hero { margin: 0 0 2.25rem; }
.hero img { width: 100%; border-block: 3px solid var(--teal); }

/* Below 40rem floats stack, centred. */
.float img { margin-inline: auto; }
.portrait img { max-width: min(100%, 12rem); }

@media (min-width: 40rem) {
  .float { float: right; margin: .4rem 0 1.25rem 2rem; }
  .float.half { width: 45%; }
  .float.third { width: 34%; }
  .portrait img { max-width: 100%; }
}

/* Footer */

.site-footer {
  border-top: 1px solid var(--rule);
  background: var(--mist);
  color: var(--muted);
  font: .8125rem/1.5 var(--sans);
}
.site-footer .wrap { padding-block: 1.5rem; }
.site-footer p { margin: 0; }