/* Shared portfolio shell, article typography, listings and explanatory artefacts. */
.portfolio-site > .container {
  width: 100%;
  max-width: 88rem;
  padding-inline: clamp(1.25rem, 3vw, 2rem);
}

.portfolio-page {
  overflow-wrap: anywhere;
}

.portfolio-intro {
  padding-block: clamp(1.25rem, 3vw, 2rem) 1.25rem;
}

.portfolio-back {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  min-height: 44px;
  padding-block: .5rem;
}

.portfolio-back + .portfolio-intro,
.portfolio-back + .portfolio-prose .portfolio-intro {
  padding-top: .75rem;
}

main.portfolio-page h1.display-3 {
  font-size: clamp(3rem, 6vw, 5.5rem);
  line-height: 1.08;
  letter-spacing: -.035em;
}

main.portfolio-page h1.display-5 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  line-height: 1.12;
  letter-spacing: -.025em;
}

main.portfolio-page .lead {
  max-width: 65ch;
}

main.portfolio-page .text-muted {
  max-width: none;
}

.portfolio-opening {
  max-width: 64rem;
}

.portfolio-prose {
  max-width: 68rem;
}

/* The reading measure narrows within the common shell, preserving its left edge. */
.portfolio-body {
  font-size: 1.0625rem;
  line-height: var(--bs-body-line-height);
}

.portfolio-body h2 {
  margin-block: 1.75rem .75rem;
  font-size: clamp(1.6rem, 3vw, 2rem);
  line-height: 1.25;
}

.portfolio-body > h2:first-child,
.portfolio-body > section:first-child > h2:first-child {
  margin-top: 0;
}

.portfolio-body p,
.portfolio-body dd,
.portfolio-body ul {
  margin-bottom: 1rem;
}

.portfolio-body li + li {
  margin-top: .4rem;
}

.portfolio-body dt {
  margin-bottom: .35rem;
}

.portfolio-section {
  margin-top: clamp(1.75rem, 3vw, 2.5rem);
}

.portfolio-section-heading {
  margin-bottom: 1rem;
  padding: clamp(1rem, 2vw, 1.5rem);
  background: var(--bs-tertiary-bg);
  border-top: 3px solid var(--bs-primary);
}

.portfolio-section-heading h2 {
  font-size: clamp(2.25rem, 4vw, 3.25rem);
  line-height: 1.12;
}

.portfolio-entry {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.65fr);
  gap: clamp(1.25rem, 3vw, 2rem);
  padding-block: 1.5rem;
  border-top: 1px solid var(--bs-border-color);
}

.portfolio-entry h3,
.portfolio-entry h2 {
  font-family: var(--velkris-font-heading);
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  font-weight: 400;
}

.portfolio-entry h3 a,
.portfolio-entry h2 a {
  color: var(--bs-heading-color);
  text-decoration-thickness: 1px;
}

/* The complete collection uses a compact, single-column publication listing. */
.portfolio-entry-compact {
  display: block;
  max-width: 68rem;
}

.portfolio-entry-compact > div + div {
  margin-top: .75rem;
}

.portfolio-question,
.portfolio-artefact {
  margin-block: 0 1.5rem;
  padding: clamp(1rem, 2vw, 1.5rem);
  background: var(--bs-tertiary-bg);
  border-left: 3px solid var(--bs-primary);
}

.portfolio-question h2 {
  font-size: clamp(1.4rem, 3vw, 1.8rem);
  line-height: 1.4;
}

.portfolio-artefact {
  margin-top: 1.5rem;
}

.portfolio-artefact .table {
  min-width: 36rem;
  --bs-table-bg: transparent;
  --bs-table-color: var(--bs-body-color);
  --bs-table-border-color: var(--bs-border-color);
  font-size: .9375rem;
  line-height: 1.6;
}

.portfolio-artefact th,
.portfolio-artefact td {
  padding: .75rem .5rem;
  border-bottom-width: 1px;
}

.portfolio-artefact caption {
  caption-side: top;
  color: var(--bs-secondary-color);
}

.portfolio-artefact figcaption {
  margin-top: 1rem;
  color: var(--bs-secondary-color);
  font-size: .9375rem;
  line-height: 1.65;
}

.portfolio-page code {
  color: var(--bs-primary);
}

.portfolio-notice {
  margin-top: 1.5rem;
  padding-top: 1rem;
  border-top: 1px solid var(--bs-border-color);
}

.portfolio-page section,
.portfolio-page article,
.portfolio-page h2 {
  scroll-margin-top: 1.5rem;
}

.portfolio-site nav .nav-link {
  min-height: 44px;
  padding-inline: .75rem;
}

.portfolio-site nav a[aria-current="page"] {
  color: var(--bs-emphasis-color);
  text-decoration: underline;
  text-underline-offset: .35em;
}

.portfolio-page [tabindex="0"]:focus-visible {
  outline: 3px solid var(--bs-emphasis-color);
  outline-offset: 4px;
}

@media (max-width: 767.98px) {
  .portfolio-entry {
    grid-template-columns: minmax(0, 1fr);
    gap: 1.25rem;
    padding-block: 1.25rem;
  }

  .portfolio-artefact {
    padding-inline: 1rem;
  }
}

/* Text-first diagrams retain their reading order without scripting or images. */
.portfolio-flow,
.portfolio-branches {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 13rem), 1fr));
  gap: 1rem;
  padding: 0;
  margin: 0;
  list-style: none;
}

.portfolio-flow {
  counter-reset: flow-step;
}

.portfolio-body .portfolio-flow > li,
.portfolio-body .portfolio-branches > li {
  margin: 0;
  padding: .85rem;
  border: 1px solid var(--bs-border-color);
  background: var(--bs-body-bg);
  break-inside: avoid;
}

.portfolio-flow > li::before {
  counter-increment: flow-step;
  content: counter(flow-step) " / ";
  color: var(--bs-primary);
  font-weight: 600;
}

.portfolio-flow strong,
.portfolio-branches strong {
  color: var(--bs-heading-color);
}

.portfolio-flow span,
.portfolio-branches span {
  display: block;
  margin-top: .5rem;
  font-size: .9375rem;
}

.portfolio-code {
  padding: 1rem;
  border: 1px solid var(--bs-border-color);
  background: var(--bs-tertiary-bg);
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  font-size: .875rem;
  line-height: 1.6;
}

@media print {
  .portfolio-artefact .table {
    min-width: 0;
  }

  .portfolio-flow,
  .portfolio-branches {
    display: block;
  }

  .portfolio-flow > li,
  .portfolio-branches > li {
    margin-bottom: 2mm;
  }
}