/* Site layouts. Shared typography, colors and components live in design-system/. */
html {
  scroll-padding-top: var(--space-6);
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

body, main, section, article, .wrapper {
  min-width: 0;
}

[hidden] {
  display: none !important;
}

.wrapper {
  width: min(var(--width-page), calc(100% - 2 * var(--gutter)));
  margin-inline: auto;
}

.site-main {
  flex: 1;
  padding-block: var(--space-24);
}

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

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-8);
  min-height: 6rem;
  padding-block: var(--space-4);
}

.site-title {
  color: var(--color-ink);
  font-size: var(--text-interface);
  font-weight: var(--weight-semibold);
  text-decoration: none;
  flex-shrink: 0;
}

.site-title:hover {
  text-decoration: underline;
}

.site-nav {
  column-gap: var(--space-8);
}

.skip-link {
  position: absolute;
  top: var(--space-4);
  left: var(--gutter);
  z-index: 10;
  padding: var(--space-3) var(--space-4);
  color: var(--color-inverse);
  background: var(--color-ink);
  transform: translateY(-200%);
}

.skip-link:focus {
  transform: translateY(0);
}

.site-main:focus {
  outline: none;
}

.site-footer {
  border-top: 1px solid var(--color-border);
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-6);
  padding-block: var(--space-8);
}

.footer-copyright {
  color: var(--color-secondary);
  font-size: var(--text-small);
  line-height: var(--leading-small);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-6);
  font-size: var(--text-interface);
}

.footer-links a {
  display: inline-flex;
  align-items: center;
  min-height: var(--control-height);
}

/* Profile and academic record. */
.home-intro {
  display: grid;
  grid-template-columns: minmax(0,1fr) 12rem;
  gap: var(--space-24);
  align-items: start;
  padding-bottom: var(--space-24);
}

.intro-copy {
  max-width: var(--width-reading);
}

.intro-copy > * + * {
  margin-top: var(--space-6);
}

.intro-copy .lead {
  margin-top: var(--space-8);
}

.profile-photo {
  width: 12rem;
  height: auto;
  aspect-ratio: 1;
  object-fit: cover;
  object-position: top;
  border-radius: var(--radius-medium);
}

/* Collection pages. */
.page-header {
  margin-bottom: var(--space-16);
}

.page-header h1 {
  max-width: 24ch;
}

.index-section {
  display: grid;
  grid-template-columns: 14rem minmax(0,1fr);
  gap: var(--space-12);
}

.index-section + .index-section {
  margin-top: var(--space-16);
}

.index-section > h2 {
  padding-top: var(--space-8);
}

.entry-list {
  min-width: 0;
}

.project-entry .arrow {
  color: var(--color-secondary);
}

.writing-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.writing-entry {
  padding-block: var(--space-8);
  border-top: 1px solid var(--color-border);
}

.writing-entry:last-child {
  border-bottom: 1px solid var(--color-border);
}

.writing-entry time {
  display: block;
  color: var(--color-secondary);
  font-size: var(--text-small);
  line-height: var(--leading-small);
  margin-bottom: var(--space-3);
}

.writing-entry h3 a {
  text-decoration: none;
}

.writing-entry h3 a:hover {
  text-decoration: underline;
  text-decoration-thickness: 2px;
}

.writing-entry p {
  max-width: var(--width-reading);
  margin-top: var(--space-3);
}

.writing-entry .tags {
  margin-top: var(--space-4);
}

/* Articles and service details. */
.detail-header, .post-content, .service-content, .service-cta {
  max-width: var(--width-reading);
  margin-inline: auto;
}

.detail-header h1 {
  max-width: none;
}

.detail-header > * + * {
  margin-top: var(--space-6);
}

.back-link {
  display: inline-flex;
  align-items: center;
  min-height: var(--control-height);
  font-size: var(--text-interface);
  line-height: var(--leading-interface);
  color: var(--color-accent-blue);
}

.detail-header .back-link {
  margin-bottom: var(--space-3);
}

.post-meta {
  color: var(--color-secondary);
  font-size: var(--text-small);
  line-height: var(--leading-small);
}

.service-cta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  margin-top: var(--space-8);
}

.prose {
  overflow-wrap: break-word;
}

.prose a:not(.project-entry):not(.profile-card):not(.button) {
  color: var(--color-accent-blue);
}

.prose li + li {
  margin-top: var(--space-2);
}

.prose li > p + p, .prose blockquote > * + * {
  margin-top: var(--space-6);
}

.prose li > ul, .prose li > ol {
  margin-block: var(--space-2) 0;
}

.prose ul, .prose ol {
  padding-left: var(--space-6);
}

.prose hr {
  border: 0;
  border-top: 1px solid var(--color-border);
  margin-block: var(--space-12);
}

.prose h2 + *, .prose h3 + *, .prose h4 + * {
  margin-top: var(--space-6);
}

.prose .related-writing {
  margin: 0;
}

.prose .related-writing h3 {
  margin-top: 0;
}

.prose .profile-card {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  padding-block: var(--space-6);
  border-block: 1px solid var(--color-border);
  text-decoration: none;
}

.profile-card-photo {
  width: 4rem;
  height: 4rem;
  flex-shrink: 0;
  object-fit: cover;
  border-radius: var(--radius-small);
}

.profile-card-name {
  font-weight: var(--weight-semibold);
  line-height: var(--leading-body);
}

.profile-card-role {
  font-size: var(--text-small);
  line-height: var(--leading-small);
  color: var(--color-secondary);
  margin-top: var(--space-1);
}

a.profile-card:hover .profile-card-name {
  text-decoration: underline;
  text-decoration-thickness: 2px;
}

.table-wrap {
  width: 100%;
}

.table-wrap table {
  min-width: 32rem;
}

th[align=right], td[align=right] {
  text-align: right;
  font-variant-numeric: tabular-nums;
}

.video-embed {
  position: relative;
  aspect-ratio: 16 / 9;
  background: var(--color-surface);
}

.video-embed iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

.prose img:not(.profile-card-photo) {
  margin-inline: auto;
}

.prose p:has(> img) + p:has(> em:only-child) {
  font-size: var(--text-small);
  line-height: var(--leading-small);
  color: var(--color-secondary);
  margin-top: var(--space-4);
}

.footnotes {
  border-top: 1px solid var(--color-border);
  padding-top: var(--space-6);
  font-size: var(--text-small);
  line-height: var(--leading-small);
  color: var(--color-secondary);
}

.footnotes ol {
  margin-block: 0;
}

.footnote {
  font-size: .75em;
}

.highlighter-rouge pre {
  margin: 0;
}

.highlighter-rouge .highlight {
  background: var(--color-surface);
  color: var(--color-ink);
}

.highlight .c, .highlight .c1, .highlight .cm, .highlight .cp {
  color: var(--color-secondary);
}

.highlight .k, .highlight .kd, .highlight .kn, .highlight .kp, .highlight .kr {
  font-weight: var(--weight-semibold);
}

mjx-container[display=true] {
  max-width: 100%;
  overflow-x: auto;
  overflow-y: hidden;
  padding-block: var(--space-2);
}

.page-404 {
  padding-bottom: var(--space-16);
}

.page-404 > * + * {
  margin-top: var(--space-6);
}

@media (max-width: 60rem) {
  .home-intro {
    gap: var(--space-12);
    grid-template-columns: minmax(0,1fr) 9rem;
  }

  .profile-photo {
    width: 9rem;
  }

  .index-section {
    grid-template-columns: minmax(0,1fr);
    gap: var(--space-6);
  }

  .index-section > h2 {
    padding-top: 0;
  }

}

@media (max-width: 40rem) {
  .site-main {
    padding-block: var(--space-12) var(--space-16);
  }

  .header-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-2);
    padding-block: var(--space-4);
  }

  .site-nav {
    gap: var(--space-1) var(--space-6);
  }

  .home-intro {
    display: flex;
    flex-direction: column;
    gap: var(--space-8);
    padding-bottom: var(--space-12);
  }

  .profile-photo {
    order: -1;
    width: 6rem;
  }

  .intro-copy {
    width: 100%;
  }

  .page-header {
    margin-bottom: var(--space-12);
  }

  .index-section + .index-section {
    margin-top: var(--space-12);
  }

  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-3);
  }

  .prose .profile-card {
    gap: var(--space-4);
  }

}

@media print {
  .site-nav, .site-footer, .skip-link, .back-link, .service-cta {
    display: none;
  }

  .wrapper {
    width: 100%;
  }

  .site-main {
    padding-block: var(--space-8);
  }

  .detail-header, .prose {
    max-width: none;
  }

  h1, h2, h3 {
    break-after: avoid;
  }

  img, pre, tr {
    break-inside: avoid;
  }

  .table-wrap, .table-wrap table {
    overflow: visible;
    min-width: 0;
  }

}