/* Interior pages use a static masthead and open editorial sections. */
.project-page .site-header,
.field-note .site-header {
  position: static;
}

.field-note {
  background: var(--surface);
}

.case-shell,
.project-shell {
  width: min(calc(100% - 3rem), var(--max));
  margin-inline: auto;
}

.case-hero,
.project-hero {
  padding: clamp(3.5rem, 8vw, 6.5rem) 0 2.8rem;
}

.case-back {
  display: inline-block;
  margin-bottom: 2.6rem;
  color: var(--accent);
  font-size: 0.88rem;
  font-weight: 720;
  text-underline-offset: 4px;
}

.case-hero {
  max-width: 700px;
  margin-inline: auto;
  margin-bottom: 2.8rem;
  border-bottom: 1px solid var(--line-strong);
}

.case-hero h1 {
  max-width: 16ch;
  margin-bottom: 1.4rem;
  font-size: clamp(2.8rem, 5.5vw, 4.5rem);
  line-height: 1.08;
  letter-spacing: -0.058em;
}

.case-hero h1 span {
  display: block;
  color: var(--accent);
}

.case-deck {
  max-width: 64ch;
  color: var(--muted);
  font-size: clamp(1.08rem, 2vw, 1.28rem);
  line-height: 1.7;
}

.case-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem 1.25rem;
  margin: 1.6rem 0 0;
  color: var(--muted-2);
  font-size: 0.8rem;
}

.case-layout {
  display: grid;
  grid-template-columns: minmax(0, 700px);
  justify-content: center;
  padding-bottom: 5rem;
}

.case-prose {
  min-width: 0;
  color: var(--ink-soft);
  font-size: 1.1rem;
  line-height: 1.82;
}

.case-prose section {
  margin-bottom: 3.8rem;
}

.case-prose h2 {
  margin: 0 0 1rem;
  color: var(--ink);
  font-size: clamp(1.65rem, 3vw, 2.15rem);
  line-height: 1.2;
  letter-spacing: -0.035em;
}

.case-prose h3 {
  margin-bottom: 0.65rem;
  color: var(--ink);
  font-size: 1.18rem;
  line-height: 1.4;
  letter-spacing: -0.02em;
}

.case-prose p {
  margin-bottom: 1.15rem;
}

.case-callout {
  margin: 1.8rem 0;
  max-width: 65ch;
  padding: 0.4rem 0 0.4rem 1.5rem;
  border-left: 2px solid var(--line-strong);
}

.case-callout p {
  margin: 0;
  color: var(--ink);
  font-size: 1.18rem;
  line-height: 1.55;
  letter-spacing: -0.018em;
}

.case-finding {
  margin-top: 1.5rem;
  padding: 1.5rem 0 0;
  border-top: 1px solid var(--line);
}

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

.case-details {
  margin: 0 0 3.5rem;
  border-block: 1px solid var(--line-strong);
}

.case-details summary {
  padding: 1.2rem 0;
  color: var(--ink);
  cursor: pointer;
  font-weight: 760;
}

.case-details summary::marker {
  color: var(--accent);
}

.case-details > div {
  padding: 1rem 0 0.35rem;
  border-top: 1px solid var(--line);
}

.case-details p {
  color: var(--muted);
  font-size: 0.94rem;
  line-height: 1.72;
}

.case-back-end {
  margin-bottom: 0;
}

/* A field note records a moment, rather than a live project status. */
.case-meta .evidence-state {
  flex-basis: 100%;
  color: var(--muted);
  font-size: 0.68rem;
  line-height: 1.6;
}

/* Future research questions read as a sequence, not a set of products. */
.research-sequence {
  margin: 0 0 2rem;
  padding: 0;
  list-style: none;
}

.research-sequence li {
  display: grid;
  grid-template-columns: minmax(7rem, 0.7fr) minmax(0, 1.3fr);
  gap: clamp(2rem, 7vw, 6rem);
  padding: 1.35rem 0;
  border-top: 1px solid var(--line);
}

.research-sequence h3 {
  margin: 0;
  font-size: 1.3rem;
  letter-spacing: -0.025em;
}

.research-sequence p {
  margin: 0;
  max-width: 60ch;
  color: var(--muted);
}

@media (max-width: 600px) {
  .research-sequence li {
    grid-template-columns: 1fr;
    gap: 0.4rem;
  }
}

/* Project profiles */

.project-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 0.47fr);
  gap: clamp(2.5rem, 8vw, 6rem);
  align-items: start;
}

.project-hero h1 {
  max-width: 13ch;
  margin-bottom: 1.25rem;
  font-size: clamp(3.2rem, 6.5vw, 5.6rem);
  line-height: 1.02;
  letter-spacing: -0.065em;
}

.project-introduction {
  max-width: 60ch;
  margin: 1.1rem 0 0;
  color: var(--muted);
}

.project-introduction + .hero-actions {
  margin-top: 1.5rem;
}

.project-hero .case-deck {
  margin-bottom: 0;
}

.project-summary-card {
  padding-left: 1.8rem;
  border-left: 1px solid var(--line-strong);
}

.project-summary-card .project-mark {
  margin-bottom: 1rem;
  color: var(--category-ink);
}

.project-summary-card dl {
  display: grid;
  gap: 0;
  margin: 0;
}

.project-summary-card div {
  padding: 0.9rem 0;
  border-top: 1px solid var(--line);
}

.project-summary-card dt {
  margin-bottom: 0.18rem;
  color: var(--muted-2);
  font-size: 0.65rem;
  font-weight: 850;
  letter-spacing: 0.08em;
}

.project-summary-card dd {
  margin: 0;
  color: var(--ink-soft);
  font-size: 0.9rem;
  line-height: 1.5;
}

.project-section {
  border-top: 1px solid var(--line);
  padding: clamp(3rem, 5vw, 4.5rem) 0;
}

.project-section-soft {
  background: var(--surface);
}

.project-section-heading {
  display: grid;
  grid-template-columns: minmax(0, 0.7fr) minmax(0, 1.3fr);
  gap: clamp(2rem, 7vw, 6rem);
  align-items: start;
  margin-bottom: 2.4rem;
}

.project-section-heading h2 {
  max-width: 16ch;
  margin-bottom: 0;
  font-size: clamp(2rem, 3.5vw, 3.1rem);
  line-height: 1.08;
  letter-spacing: -0.05em;
}

.project-section-heading > p {
  margin: 0;
  color: var(--muted);
  font-size: 1.04rem;
  line-height: 1.72;
}

.capability-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 2rem 3rem;
}

.capability-card {
  display: grid;
  grid-template-columns: 2rem minmax(0, 1fr);
  column-gap: 0.75rem;
  align-content: start;
  padding: 1.5rem 0 0;
  border-top: 1px solid var(--line-strong);
}

.capability-card span {
  grid-row: span 2;
  padding-top: 0.2rem;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
  font-size: 0.72rem;
  font-weight: 850;
}

.capability-card h3 {
  margin-bottom: 0.55rem;
  font-size: 1.16rem;
  letter-spacing: -0.025em;
}

.capability-card p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 0.93rem;
}

.workflow-list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin: 0;
  padding: 0;
  gap: 2rem;
  list-style: none;
}

.workflow-list-three {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.workflow-list li {
  min-width: 0;
  padding: 1.4rem 0 0;
  border-top: 1px solid var(--line-strong);
}

.workflow-list span {
  display: block;
  margin-bottom: 1rem;
  color: var(--muted);
  font-size: 0.7rem;
  font-weight: 850;
  letter-spacing: 0.08em;
}

.workflow-list strong {
  display: block;
  margin-bottom: 0.45rem;
  font-size: 1rem;
}

.workflow-list p {
  margin: 0;
  color: var(--muted);
  font-size: 0.85rem;
  line-height: 1.55;
}

.reality-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 2rem 3rem;
}

.reality-card {
  padding: 1.4rem 0 0;
  border-top: 1px solid var(--line-strong);
}

.reality-card h3 {
  margin-bottom: 0.55rem;
  font-size: 1rem;
}

.reality-card p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.project-boundary {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 1.2rem;
  align-items: start;
  padding-left: 1.5rem;
  border-left: 2px solid var(--line-strong);
}

.project-boundary > span {
  color: var(--muted);
  font-weight: 900;
}

.project-boundary h3 {
  margin-bottom: 0.35rem;
  font-size: 1.05rem;
}

.project-boundary p {
  margin-bottom: 0;
  color: var(--muted);
}

.project-more {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  align-items: center;
  justify-content: space-between;
}

.project-more p {
  margin: 0;
  color: var(--muted);
}

.related-reading {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1.3rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--line-strong);
  font-size: 0.95rem;
}

@media (min-width: 721px) and (max-width: 900px) {
  .workflow-list-three li:last-child { grid-column: 1 / -1; }
}

@media (max-width: 900px) {
  .project-hero-grid,
  .project-section-heading {
    grid-template-columns: 1fr;
  }

  .project-summary-card {
    max-width: 620px;
  }

  .workflow-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 720px) {
  .case-shell,
  .project-shell {
    width: min(calc(100% - 2rem), var(--max));
  }

  .case-hero,
  .project-hero {
    padding-top: 2.5rem;
  }

  .case-back {
    margin-bottom: 2rem;
  }

  .case-hero h1,
  .project-hero h1 {
    font-size: clamp(2.5rem, 10.5vw, 4rem);
  }

  .case-prose {
    font-size: 1.02rem;
    line-height: 1.75;
  }

  .case-prose section {
    margin-bottom: 3.2rem;
  }

  .capability-grid,
  .reality-grid,
  .workflow-list {
    grid-template-columns: 1fr;
  }
}