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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 4.5rem; /* clears the sticky nav on wider screens */
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink-2);
  font-family: var(--font-serif);
  font-size: var(--fs-body);
  line-height: 1.65;
  min-height: 100vh;
  font-feature-settings: "kern", "liga", "onum" 0;
}

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

a {
  color: var(--ink);
  text-decoration: underline;
  text-decoration-color: var(--rule-strong);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
  transition: color var(--dur) var(--ease), text-decoration-color var(--dur) var(--ease);
}
a:hover { color: var(--accent); text-decoration-color: var(--accent); }

::selection { background: #FDE1E7; color: var(--ink); }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* Skip link */
.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--ink);
  color: #fff;
  padding: 0.6rem 0.9rem;
  z-index: 1000;
  text-decoration: none;
  font-family: var(--font-sans);
}
.skip-link:focus { left: 1rem; top: 1rem; }

/* Typography */
h1, h2, h3, h4 {
  font-family: var(--font-serif);
  color: var(--ink);
  margin: 0;
  line-height: 1.2;
  font-weight: 600;
  letter-spacing: -0.005em;
}
h2 { font-size: var(--fs-h2); }
h3 { font-size: var(--fs-h3); }

p { margin: 0 0 1rem; }

/* Layout primitives */
.container {
  width: min(100% - (var(--gutter) * 2), var(--max));
  margin-inline: auto;
}

section {
  padding-top: var(--section-gap);
}
section:last-of-type { padding-bottom: var(--section-gap); }

/* Section title: serif heading over a dark hairline */
.sec-title {
  font-size: var(--fs-h2);
  padding-bottom: 0.7rem;
  margin-bottom: 1.75rem;
  border-bottom: 1px solid var(--rule-ink);
}

.sec-intro {
  max-width: var(--measure);
  margin-bottom: 2rem;
  color: var(--ink-2);
}

/* Print: strip chrome */
@media print {
  .nav, .pub-controls, .pub-more, .skip-link { display: none !important; }
  body { font-size: 11pt; }
  a { color: inherit; text-decoration: none; }
}