/* Course-project dossier */
.project-shell {
  --project-phase: var(--accent-strong);
  align-items: start;
  display: grid;
  gap: clamp(1.5rem, 3vw, 3rem);
  grid-template-columns: minmax(13rem, 16rem) minmax(0, 48rem) minmax(
      12rem,
      15rem
    );
  justify-content: center;
  margin: 0 auto;
  max-width: 96rem;
  padding: clamp(2rem, 4vw, 4rem) clamp(1rem, 3vw, 2.5rem) 5rem;
}
.project-shell[data-project-phase="establish"] {
  --project-phase: #bd6c13;
}
.project-shell[data-project-phase="challenge"] {
  --project-phase: #087d91;
}
.project-shell[data-project-phase="compare"] {
  --project-phase: #b44035;
}
.project-index,
.project-page-tools {
  position: sticky;
  top: 5.5rem;
}
.project-index-heading {
  border-bottom: 3px solid var(--project-phase);
  margin-bottom: 0.9rem;
  padding-bottom: 0.9rem;
}
.project-index-heading p,
.project-page-tools p,
.project-document-kicker,
.project-source-link span {
  color: var(--muted);
  font: 800 0.68rem/1.2 var(--font-mono);
  letter-spacing: 0.1em;
  margin: 0 0 0.35rem;
  text-transform: uppercase;
}
.project-index-heading a {
  color: var(--text);
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 650;
  line-height: 1.15;
  text-decoration: none;
}
.project-index ol,
.project-page-tools ol {
  list-style: none;
  margin: 0;
  padding: 0;
}
.project-index li + li {
  border-top: 1px solid var(--border);
}
.project-index li a {
  color: var(--text);
  display: grid;
  gap: 0.15rem 0.65rem;
  grid-template-columns: 1.7rem minmax(0, 1fr);
  padding: 0.85rem 0.65rem;
  text-decoration: none;
  transition:
    background 150ms ease,
    box-shadow 150ms ease;
}
.project-index li a:hover,
.project-index li a[aria-current="page"] {
  background: var(--panel);
  box-shadow: inset 3px 0 0 var(--project-phase);
}
.project-index li span {
  color: var(--project-phase);
  font: 800 0.72rem/1.45 var(--font-mono);
  grid-row: 1 / 3;
}
.project-index li strong {
  font-size: 0.92rem;
  line-height: 1.3;
}
.project-index li small {
  color: var(--muted);
  font-size: 0.7rem;
  grid-column: 2;
  line-height: 1.35;
}
.project-main {
  min-width: 0;
}
.project-document-header {
  align-items: stretch;
  background:
    linear-gradient(
      90deg,
      color-mix(in srgb, var(--project-phase) 8%, transparent) 1px,
      transparent 1px
    ),
    var(--panel);
  background-size: 1.5rem 100%;
  border: 1px solid var(--border);
  border-top: 0.3rem solid var(--project-phase);
  display: grid;
  gap: 1.5rem;
  grid-template-columns: minmax(0, 1fr) auto;
  padding: clamp(1.1rem, 2.5vw, 1.75rem);
}
.project-document-header > div:first-child {
  align-content: center;
}
.project-document-kicker span {
  color: var(--project-phase);
}
.project-document-header > div > strong {
  display: block;
  font-family: var(--font-serif);
  font-size: clamp(1.45rem, 3vw, 2.2rem);
  font-weight: 600;
  line-height: 1.05;
}
.project-document-header dl {
  border-left: 1px solid var(--border);
  display: grid;
  margin: 0;
  min-width: 12.5rem;
  padding-left: 1.25rem;
}
.project-document-header dl > div + div {
  border-top: 1px solid var(--border);
  margin-top: 0.65rem;
  padding-top: 0.65rem;
}
.project-document-header dt {
  color: var(--muted);
  font: 800 0.62rem/1.2 var(--font-mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.project-document-header dd {
  font-size: 0.78rem;
  font-weight: 700;
  margin: 0.25rem 0 0;
}
.project-document-header dd i {
  background: var(--project-phase);
  border-radius: 100%;
  display: inline-block;
  height: 0.48rem;
  margin-right: 0.3rem;
  width: 0.48rem;
}
.project-document-summary {
  border-bottom: 1px solid var(--border);
  color: var(--muted);
  font-family: var(--font-serif);
  font-size: 1.08rem;
  font-style: italic;
  margin: 0;
  padding: 1rem 0.25rem;
}
.project-prose {
  padding-inline: 0.25rem;
}
.project-prose h1 {
  max-width: 16ch;
}
.project-prose h2 {
  scroll-margin-top: 6rem;
}
.project-prose hr {
  border: 0;
  border-top: 1px solid var(--border);
  margin: 2.5rem 0;
  max-width: 66ch;
}
.project-prose > h2:first-of-type {
  color: var(--project-phase);
  font-size: clamp(1.45rem, 3vw, 2.15rem);
  margin-top: -1.4rem;
}
.project-page-tools {
  display: grid;
  gap: 1.5rem;
}
.project-source-link {
  background: var(--panel);
  border: 1px solid var(--border);
  border-top: 0.22rem solid var(--project-phase);
  color: var(--text);
  display: block;
  font-size: 0.85rem;
  font-weight: 750;
  line-height: 1.35;
  padding: 0.85rem 2.5rem 0.85rem 0.85rem;
  position: relative;
  text-decoration: none;
}
.project-source-link span,
.project-source-link strong {
  display: block;
}
.project-source-link span {
  margin-bottom: 0.2rem;
}
.project-source-link strong {
  font-size: 0.88rem;
  line-height: 1.25;
  white-space: nowrap;
}
.project-source-link b {
  color: var(--project-phase);
  font-family: var(--font-mono);
  font-size: 1.1rem;
  inset: 50% 0.75rem auto auto;
  position: absolute;
  transform: translateY(-50%);
}
.project-source-link:hover {
  box-shadow: var(--shadow);
  color: var(--text);
}
.project-page-tools .local-toc {
  border-top: 1px solid var(--border);
  max-height: calc(100vh - 13rem);
  overflow: auto;
  padding-top: 1rem;
}
.project-page-tools .local-toc a {
  font-size: 0.75rem;
}
.project-pagination {
  border-top: 1px solid var(--border);
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 2rem;
  padding-top: 1.5rem;
}
.project-pagination a {
  background: var(--panel);
  border: 1px solid var(--border);
  color: var(--text);
  display: block;
  padding: 0.8rem;
  text-decoration: none;
}
.project-pagination a:last-child {
  grid-column: 2;
  text-align: right;
}
.project-pagination span {
  color: var(--muted);
  display: block;
  font: 800 0.62rem/1.2 var(--font-mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
@media (max-width: 76rem) {
  .project-shell {
    grid-template-columns: minmax(13rem, 16rem) minmax(0, 48rem);
  }
  .project-page-tools {
    grid-column: 1;
    grid-row: 2;
    position: static;
  }
  .project-page-tools .local-toc {
    display: none;
  }
}
@media (max-width: 48rem) {
  .project-shell {
    display: block;
    padding-top: 1.25rem;
  }
  .project-index {
    margin-bottom: 1.5rem;
    position: static;
  }
  .project-index ol {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .project-index li + li {
    border-top: 0;
  }
  .project-index li a {
    border-top: 1px solid var(--border);
    height: 100%;
  }
  .project-document-header {
    grid-template-columns: 1fr;
  }
  .project-document-header dl {
    border-left: 0;
    border-top: 1px solid var(--border);
    grid-template-columns: repeat(2, minmax(0, 1fr));
    padding-left: 0;
    padding-top: 0.85rem;
  }
  .project-document-header dl > div + div {
    border-left: 1px solid var(--border);
    border-top: 0;
    margin: 0 0 0 0.85rem;
    padding: 0 0 0 0.85rem;
  }
  .project-page-tools {
    margin-top: 1.25rem;
  }
}
@media (max-width: 30rem) {
  .project-index ol,
  .project-pagination {
    grid-template-columns: 1fr;
  }
  .project-pagination a:last-child {
    grid-column: 1;
    text-align: left;
  }
}