/*
 * Editorial and technical public-page adapters.
 *
 * Shared `.public-*` classes establish the cross-route contract. These rules
 * only tune that contract for Blog, article, and Architecture surfaces; the
 * page-owned `.pb-*` and `.architecture-*` systems remain authoritative for
 * prose, reading modes, filters, diagrams, node inspection, and workbench UI.
 */

.public-blog,
.public-article,
.public-architecture {
  --public-flow-space: clamp(64px, 8vw, 112px);
  --public-flow-gutter: clamp(18px, 3.2vw, 40px);
  overflow-x: clip;
}

/* Blog index: retain the ledger while giving its opening and catalog a
   landing-derived entry -> tools -> content cadence. */
.public-blog .pb-ledger-hero.public-page-intro {
  position: relative;
  min-height: clamp(420px, 58vh, 620px);
  align-items: center;
  padding-block: clamp(58px, 8vw, 104px);
  padding-inline: 40px;
  border-bottom: 1px solid var(--pb-hair);
  isolation: isolate;
}

.public-blog .pb-ledger-hero.public-page-intro::before {
  content: "";
  position: absolute;
  inset: 8% 36% 0 -8%;
  z-index: -1;
  pointer-events: none;
  background: radial-gradient(circle, color-mix(in srgb, var(--pb-cyan) 10%, transparent), transparent 68%);
  filter: blur(20px);
}

.public-blog .public-kicker {
  letter-spacing: 0.13em;
}

.public-blog .pb-ledger-hero .public-page-title {
  font-family: var(--pb-font-display);
  font-size: clamp(3.6rem, 7vw, 6.8rem);
  font-weight: 600;
  letter-spacing: -0.055em;
  line-height: 0.91;
}

.public-blog .pb-ledger-hero .public-page-lede {
  max-width: 610px;
  margin-top: 24px;
  font-size: clamp(1.04rem, 1.55vw, 1.22rem);
}

.public-blog .pb-featured-card {
  align-self: stretch;
  justify-content: center;
  border-color: var(--pb-line);
  box-shadow: 0 24px 70px color-mix(in srgb, var(--pb-bg-deep) 72%, transparent);
  transition: transform 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
}

.public-blog .pb-featured-card:hover,
.public-blog .pb-featured-card:focus-visible {
  transform: translateY(-3px);
  border-color: var(--pb-cyan);
  outline: none;
  box-shadow: 0 30px 78px color-mix(in srgb, var(--pb-bg-deep) 78%, transparent);
}

.public-blog .pb-ledger-tools.public-flow-section {
  position: relative;
  padding-block: clamp(22px, 3vw, 34px);
  padding-inline: 40px;
}

.public-blog .pb-index-grid.public-flow-section {
  padding-block: clamp(58px, 7vw, 96px);
  padding-inline: 40px;
}

.public-blog .pb-section-head.public-section-head {
  grid-template-columns: 1fr;
  gap: 0;
  margin-bottom: clamp(24px, 3vw, 38px);
  padding-bottom: 18px;
  border-bottom: 1px solid var(--pb-hair);
}

.public-blog .pb-section-head.public-section-head h2 {
  margin-top: 10px;
  font-family: var(--pb-font-display);
  font-size: clamp(2rem, 3.4vw, 3.2rem);
  letter-spacing: -0.035em;
}

.public-blog .pb-ledger-card a {
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease, box-shadow 180ms ease;
}

.public-blog .pb-ledger-card a:hover,
.public-blog .pb-ledger-card a:focus-visible {
  transform: translateY(-3px);
  border-color: var(--pb-line);
  outline: none;
  background: var(--pb-raised);
  box-shadow: 0 20px 50px color-mix(in srgb, var(--pb-bg-deep) 68%, transparent);
}

/* Article: shared framing is intentionally outside `.pb-prose`. Reading mode
   variables remain the source for every color, radius, and type decision. */
.public-article .pb-reading-bar.public-link-rail {
  display: flex;
  grid-template-columns: none;
  padding: 0 40px;
  border-top: 1px solid var(--pb-hair);
}

.public-article .pb-reading-bar.public-link-rail > * {
  border-bottom: 0;
}

.public-article .pb-back.public-action {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  padding-inline: 12px;
  border: 1px solid var(--pb-line);
  border-radius: var(--pb-r);
  transition: color 160ms ease, border-color 160ms ease, background 160ms ease;
}

.public-article .pb-back.public-action:hover,
.public-article .pb-back.public-action:focus-visible {
  color: var(--pb-ink);
  border-color: var(--pb-cyan);
  background: var(--pb-tape);
  outline: none;
}

.public-article .pb-article-head.public-page-intro {
  position: relative;
  display: block;
  padding: 0 0 clamp(26px, 4vw, 42px);
  border-bottom: 1px solid var(--pb-hair);
}

.public-article .pb-kicker.public-kicker {
  margin-bottom: 22px;
  color: var(--pb-cyan);
  font-family: var(--pb-font-mono);
  font-size: 11px;
  line-height: normal;
  letter-spacing: 0;
}

.public-article .pb-mode-slate .pb-article-head.public-page-intro {
  padding: 28px;
}

.public-article .pb-article-head .public-page-title {
  letter-spacing: -0.04em;
}

.public-article .pb-lede.public-page-lede {
  max-width: 64ch;
  margin: 22px 0 0;
  color: var(--pb-muted);
  font-family: var(--pb-font-sans);
  font-size: 20px;
  line-height: 1.55;
}

.public-article .pb-mode-slate .pb-lede.public-page-lede {
  font-size: 19px;
}

.public-article .pb-hero-media.public-media-frame {
  margin: 30px 0 38px;
  overflow: hidden;
  border: 1px solid var(--pb-line);
  border-radius: var(--pb-r);
  background: var(--pb-surface);
  box-shadow: 0 22px 58px color-mix(in srgb, var(--pb-bg-deep) 72%, transparent);
}

.public-article .pb-article-cta .public-action {
  transition: transform 160ms ease, border-color 160ms ease, box-shadow 160ms ease;
}

.public-article .pb-article-cta .public-action:hover,
.public-article .pb-article-cta .public-action:focus-visible {
  transform: translateY(-2px);
  box-shadow: 0 14px 34px color-mix(in srgb, var(--pb-cyan) 18%, transparent);
}

.public-article .pb-next.public-final-nav {
  margin-top: clamp(48px, 7vw, 76px);
  padding: clamp(28px, 4vw, 42px) 0 0;
  border-top-color: var(--pb-hair);
}

.public-article .pb-next > h2 {
  margin: 0 0 20px;
  font-family: var(--pb-font-display);
  letter-spacing: -0.025em;
}

.public-article .pb-next .public-link-rail a {
  display: grid;
  align-items: initial;
  justify-content: initial;
  gap: 8px;
  transition: transform 160ms ease, border-color 160ms ease, background 160ms ease;
}

.public-article .pb-next .public-link-rail,
.public-article .pb-next .public-link-rail > * {
  border-color: var(--pb-hair);
}

.public-article .pb-next .public-link-rail a:hover,
.public-article .pb-next .public-link-rail a:focus-visible {
  transform: translateY(-2px);
  border-color: var(--pb-cyan);
  outline: none;
  background: var(--pb-raised);
}

/* Architecture: share the public opening rhythm and action feedback, then
   deliberately hand control back to the dense workbench composition. */
.public-architecture .architecture-page {
  padding-top: 0;
}

.public-architecture .architecture-hero.public-page-intro {
  position: relative;
  min-height: clamp(410px, 54vh, 590px);
  padding-block: clamp(58px, 8vw, 102px);
  border-bottom: 1px solid var(--line);
  isolation: isolate;
}

.public-architecture .architecture-hero.public-page-intro::before {
  content: "";
  position: absolute;
  inset: 5% 30% 0 -7%;
  z-index: -1;
  pointer-events: none;
  background: radial-gradient(circle, color-mix(in srgb, var(--cyan) 11%, transparent), transparent 68%);
  filter: blur(24px);
}

.public-architecture .architecture-kicker.public-kicker {
  font-family: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  letter-spacing: 0.13em;
}

.public-architecture .architecture-hero .public-page-title {
  font-family: "Space Grotesk", ui-sans-serif, system-ui, sans-serif;
  font-size: clamp(3.4rem, 6.6vw, 6.7rem);
  font-weight: 600;
  letter-spacing: -0.055em;
  line-height: 0.91;
}

.public-architecture .architecture-hero .public-page-lede {
  margin-top: 26px;
}

.public-architecture .architecture-hero__stats.public-media-frame {
  position: relative;
  overflow: hidden;
  border-color: var(--line-strong);
  background: color-mix(in srgb, var(--panel) 90%, transparent);
  box-shadow: 0 22px 62px var(--shadow);
}

.public-architecture .architecture-hero__stats.public-media-frame::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 2px;
  background: linear-gradient(180deg, var(--green), var(--cyan));
}

.public-architecture .architecture-viewer.public-flow-section {
  padding-top: clamp(38px, 5vw, 68px);
}

.public-architecture .architecture-stage__head.public-section-head {
  display: flex;
  grid-template-columns: none;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 0;
  background: color-mix(in srgb, var(--panel) 72%, transparent);
}

.public-architecture .architecture-stage__head.public-section-head h2 {
  max-width: none;
  margin: 4px 0 0;
  font-size: clamp(1.35rem, 2.6vw, 2.3rem);
  line-height: 1.12;
  letter-spacing: 0;
}

.public-architecture .architecture-stage__actions .public-action {
  transition: transform 160ms ease, border-color 160ms ease, box-shadow 160ms ease;
}

.public-architecture .architecture-stage__actions .public-action:hover,
.public-architecture .architecture-stage__actions .public-action:focus-visible {
  transform: translateY(-2px);
  border-color: var(--line-strong);
}

.public-architecture .architecture-stage__actions .public-action.primary:hover,
.public-architecture .architecture-stage__actions .public-action.primary:focus-visible {
  box-shadow: 0 14px 34px color-mix(in srgb, var(--cyan) 18%, transparent);
}

.public-architecture .architecture-diagram-frame.public-media-frame {
  border: 0;
  border-radius: 0;
  box-shadow: none;
}

@media (max-width: 980px) {
  .public-blog .pb-ledger-hero.public-page-intro,
  .public-architecture .architecture-hero.public-page-intro {
    min-height: auto;
  }

  .public-blog .pb-featured-card {
    min-height: 250px;
  }

  .public-architecture .architecture-hero__stats.public-media-frame {
    max-width: 420px;
  }
}

@media (max-width: 720px) {
  .public-blog,
  .public-article,
  .public-architecture {
    --public-flow-space: 58px;
  }

  .public-blog .pb-ledger-hero.public-page-intro,
  .public-architecture .architecture-hero.public-page-intro {
    padding-block: 54px;
  }

  .public-blog .pb-ledger-hero.public-page-intro,
  .public-blog .pb-ledger-tools.public-flow-section,
  .public-blog .pb-index-grid.public-flow-section {
    padding-inline: 18px;
  }

  .public-blog .pb-ledger-hero .public-page-title,
  .public-architecture .architecture-hero .public-page-title {
    font-size: clamp(3rem, 15vw, 4.6rem);
  }

  .public-blog .pb-featured-card {
    min-height: 0;
  }

  .public-article .pb-reading-bar.public-link-rail {
    top: 0;
    padding: 14px 18px;
  }

  .public-article .pb-article-head.public-page-intro {
    padding: 0 0 26px;
  }

  .public-article .pb-mode-slate .pb-article-head.public-page-intro {
    padding: 22px 20px;
  }

  .public-article .pb-lede.public-page-lede,
  .public-article .pb-mode-slate .pb-lede.public-page-lede {
    font-size: 18px;
  }

  .public-architecture .architecture-viewer.public-flow-section {
    padding-top: 34px;
  }
}

@media (max-width: 640px) {
  .public-architecture .architecture-stage__head.public-section-head {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (max-width: 420px) {
  .public-blog .pb-ledger-hero.public-page-intro,
  .public-blog .pb-ledger-tools.public-flow-section,
  .public-blog .pb-index-grid.public-flow-section {
    padding-inline: 12px;
  }

  .public-article .pb-reading-bar.public-link-rail {
    padding-inline: 12px;
  }

  .public-article .pb-lede.public-page-lede,
  .public-article .pb-mode-slate .pb-lede.public-page-lede {
    font-size: 16px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .public-blog .pb-featured-card,
  .public-blog .pb-ledger-card a,
  .public-article .public-action,
  .public-article .pb-next a,
  .public-architecture .architecture-stage__actions .public-action {
    transition: none;
  }

  .public-blog .pb-featured-card:hover,
  .public-blog .pb-featured-card:focus-visible,
  .public-blog .pb-ledger-card a:hover,
  .public-blog .pb-ledger-card a:focus-visible,
  .public-article .public-action:hover,
  .public-article .public-action:focus-visible,
  .public-article .pb-next a:hover,
  .public-article .pb-next a:focus-visible,
  .public-architecture .architecture-stage__actions .public-action:hover,
  .public-architecture .architecture-stage__actions .public-action:focus-visible {
    transform: none;
  }
}