/* thehowardlab.com - single stylesheet for all pages */

:root {
  --ink: #16191d;
  --muted: #5b6570;
  --accent: #0b5d51;
  --rule: #dde1e5;
  --panel: #f6f7f8;
  --page: #ffffff;
  --measure: 46rem;
}

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

body {
  margin: 0;
  padding: 0 1.25rem 4rem;
  background: var(--page);
  color: var(--ink);
  font: 400 17px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  -webkit-text-size-adjust: 100%;
}

.wrap {
  max-width: var(--measure);
  margin: 0 auto;
}

/* Header and navigation */

header.site {
  padding: 2.5rem 0 0;
  border-bottom: 1px solid var(--rule);
}

header.site .title {
  margin: 0;
  font: 600 1.5rem/1.2 Georgia, "Times New Roman", serif;
  letter-spacing: -0.01em;
}

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

header.site .tagline {
  margin: 0.4rem 0 1.5rem;
  color: var(--muted);
  font-size: 0.95rem;
}

nav.site ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0 1.4rem;
}

nav.site a {
  display: inline-block;
  padding: 0.5rem 0;
  color: var(--muted);
  text-decoration: none;
  font-size: 0.92rem;
  border-bottom: 2px solid transparent;
}

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

nav.site a[aria-current="page"] {
  color: var(--ink);
  border-bottom-color: var(--accent);
}

/* Body content */

main {
  padding-top: 2.5rem;
}

h1 {
  margin: 0 0 1.5rem;
  font: 600 2rem/1.2 Georgia, "Times New Roman", serif;
  letter-spacing: -0.015em;
}

h2 {
  margin: 2.5rem 0 0.75rem;
  font: 600 1.2rem/1.3 Georgia, "Times New Roman", serif;
}

h3 {
  margin: 1.75rem 0 0.4rem;
  font-size: 1rem;
  font-weight: 600;
}

p { margin: 0 0 1.1rem; }

a { color: var(--accent); }

.lead {
  font-size: 1.12rem;
  color: var(--ink);
}

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

.small { font-size: 0.9rem; }

hr {
  border: 0;
  border-top: 1px solid var(--rule);
  margin: 2.5rem 0;
}

ul.plain {
  list-style: none;
  padding: 0;
  margin: 0 0 1.1rem;
}

ul.plain li {
  padding: 0.35rem 0;
}

/* Portrait block on the personal page */

.portrait {
  float: right;
  width: 180px;
  margin: 0 0 1rem 1.5rem;
  border: 1px solid var(--rule);
}

/* Person entries */

.person {
  padding: 1rem 0;
  border-top: 1px solid var(--rule);
}

.person .role {
  color: var(--muted);
  font-size: 0.9rem;
}

/* Publication entries */

ol.pubs {
  padding-left: 1.4rem;
  margin: 0;
}

ol.pubs li {
  margin-bottom: 1rem;
}

ol.pubs .journal { font-style: italic; }

ol.pubs .year { color: var(--muted); }

/* Course entries */

.course {
  padding: 1rem 1.1rem;
  margin-bottom: 1rem;
  background: var(--panel);
  border-left: 3px solid var(--accent);
}

.course h3 { margin-top: 0; }

.course p:last-child { margin-bottom: 0; }

/* Footer */

footer.site {
  margin-top: 4rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--rule);
  color: var(--muted);
  font-size: 0.85rem;
}

/* Small screens */

@media (max-width: 600px) {
  h1 { font-size: 1.6rem; }
  nav.site ul { gap: 0 1rem; }
  .portrait { float: none; width: 100%; max-width: 220px; margin: 0 0 1.25rem; }
}

/* Accessibility */

a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}