@layer page {
  :root {
    --tp-stone: #eceef0;
    --tp-vellum: #f7f8f9;
    --tp-mortar: #e1e4e8;
    --tp-ink: #11161c;
    --tp-graphite: #3f4852;
    --tp-slate: #5c6670;
    --tp-rule: rgba(17, 22, 28, 0.14);
    --tp-rule-strong: rgba(17, 22, 28, 0.34);
    --tp-minium: #c83e2b;
    --tp-minium-soft: rgba(200, 62, 43, 0.11);
    --tp-prussian: #173a5e;
    --tp-prussian-soft: rgba(23, 58, 94, 0.10);
    --tp-verdigris: #1f6e5a;
    --tp-verdigris-soft: rgba(31, 110, 90, 0.11);
    --tp-sienna: #b3541e;
    --tp-sienna-soft: rgba(179, 84, 30, 0.11);
    --tp-highlight: rgba(200, 62, 43, 0.18);
    --tp-shadow-flyout: 0 14px 34px rgba(17, 22, 28, 0.22);
  }

  html[data-theme="blueprint"],
  html[data-theme="dark"] {
    --tp-stone: #0d2238;
    --tp-vellum: #122c47;
    --tp-mortar: #173656;
    --tp-ink: #eef4fa;
    --tp-graphite: #c3d6e8;
    --tp-slate: #8fb0ce;
    --tp-rule: rgba(238, 244, 250, 0.18);
    --tp-rule-strong: rgba(238, 244, 250, 0.45);
    --tp-minium: #ff7a66;
    --tp-minium-soft: rgba(255, 122, 102, 0.18);
    --tp-prussian: #7cc4ff;
    --tp-prussian-soft: rgba(124, 196, 255, 0.16);
    --tp-verdigris: #5ce0be;
    --tp-verdigris-soft: rgba(92, 224, 190, 0.16);
    --tp-sienna: #ffb067;
    --tp-sienna-soft: rgba(255, 176, 103, 0.16);
    --tp-highlight: rgba(124, 196, 255, 0.25);
    --tp-shadow-flyout: 0 14px 34px rgba(0, 0, 0, 0.45);
  }

  body.tp-body {
    background-color: var(--tp-stone);
    color: var(--tp-ink);
    font-family: var(--font-sans, system-ui, -apple-system, sans-serif);
    line-height: 1.6;
    margin: 0;
  }

  .tp-masthead {
    position: sticky;
    top: 0;
    z-index: 40;
    background-color: var(--tp-vellum);
    border-bottom: 2px solid var(--tp-ink);
  }

  .tp-masthead-inner {
    max-width: clamp(1440px, 95vw, 1880px);
    margin: 0 auto;
    padding: 0.7rem clamp(1.1rem, 2.4vw, 2.75rem);
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
  }

  .tp-brand {
    display: flex;
    align-items: center;
    gap: 0.85rem;
    text-decoration: none;
    color: var(--tp-ink);
  }

  .tp-se-logo {
    width: 2.45rem;
    height: 2.45rem;
    flex-shrink: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background-color: var(--tp-ink);
    color: var(--tp-vellum);
    border: 1.5px solid var(--tp-ink);
    box-shadow: inset 0 0 0 2px var(--tp-vellum);
  }

  .tp-se-logo svg {
    width: 1.75rem;
    height: 1.75rem;
    display: block;
  }

  .tp-brand-copy {
    display: flex;
    flex-direction: column;
    gap: 0.1rem;
  }

  .tp-masthead-right {
    display: flex;
    align-items: center;
    gap: 1.15rem;
    flex-wrap: wrap;
  }

  .tp-cat-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.65rem;
    padding-left: 0.9rem;
    border-left: 1.5px solid var(--tp-rule-strong);
  }

  .tp-cat-meta {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    line-height: 1.15;
  }

  .tp-cat-folio {
    font-family: var(--font-mono, monospace);
    font-size: 0.64rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--tp-slate);
  }

  .tp-cat-name {
    font-family: var(--font-mono, monospace);
    font-size: 0.74rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--tp-ink);
  }

  .tp-cat-cap {
    width: 2.45rem;
    height: 2.45rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-display, Georgia, serif);
    font-size: 1.45rem;
    font-weight: 700;
    line-height: 1;
    color: var(--tp-vellum);
    background-color: var(--tp-ink);
    border: 1.5px solid var(--tp-ink);
    box-shadow: inset 0 0 0 2px var(--tp-vellum);
  }

  .tp-cat-cap[data-cat="math"] {
    background-color: var(--tp-prussian);
    border-color: var(--tp-prussian);
  }

  .tp-cat-cap[data-cat="arch"] {
    background-color: var(--tp-minium);
    border-color: var(--tp-minium);
  }

  .tp-cat-cap[data-cat="eng"] {
    background-color: var(--tp-verdigris);
    border-color: var(--tp-verdigris);
  }

  .tp-brand-title {
    font-family: var(--font-display, Georgia, serif);
    font-size: 1.15rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
  }

  .tp-brand-sub {
    font-family: var(--font-mono, monospace);
    font-size: 0.64rem;
    color: var(--tp-slate);
    letter-spacing: 0.06em;
    text-transform: uppercase;
  }

  .tp-nav {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.4rem;
  }

  .tp-nav-link {
    font-family: var(--font-mono, monospace);
    font-size: 0.74rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    text-decoration: none;
    color: var(--tp-graphite);
    padding: 0.38rem 0.72rem;
    border: 1px solid transparent;
  }

  .tp-nav-link:hover,
  .tp-nav-link[aria-current="page"] {
    color: var(--tp-ink);
    background-color: var(--tp-mortar);
    border-color: var(--tp-rule-strong);
  }

  .tp-plate-btn {
    font-family: var(--font-mono, monospace);
    font-size: 0.73rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    padding: 0.4rem 0.78rem;
    background-color: var(--tp-prussian-soft);
    color: var(--tp-prussian);
    border: 1px solid var(--tp-prussian);
    cursor: pointer;
  }

  .tp-shell {
    max-width: clamp(1440px, 95vw, 1880px);
    margin: 0 auto;
    padding: 0 clamp(1.1rem, 2.4vw, 2.75rem) 4rem;
  }

  .tp-unlisted-banner {
    margin-top: 1.25rem;
    padding: 0.65rem 1rem;
    background-color: var(--tp-vellum);
    border: 1px solid var(--tp-rule-strong);
    border-left: 4px solid var(--tp-prussian);
    font-family: var(--font-mono, monospace);
    font-size: 0.76rem;
    color: var(--tp-graphite);
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 0.75rem;
  }

  .tp-colophon-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
    border: 1px solid var(--tp-rule-strong);
    border-top: 2px solid var(--tp-ink);
    background-color: var(--tp-vellum);
    margin-top: 1.25rem;
  }

  .tp-colophon-cell {
    padding: 0.85rem 1rem;
    border-right: 1px solid var(--tp-rule);
    border-bottom: 1px solid var(--tp-rule);
  }

  .tp-colophon-label {
    display: block;
    font-family: var(--font-mono, monospace);
    font-size: 0.68rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--tp-slate);
    margin-bottom: 0.2rem;
  }

  .tp-colophon-val {
    font-family: var(--font-mono, monospace);
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--tp-ink);
  }

  .tp-hero {
    padding: 2.5rem 0 2rem;
    border-bottom: 2px solid var(--tp-ink);
  }

  .tp-kicker {
    font-family: var(--font-mono, monospace);
    font-size: 0.76rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--tp-minium);
    margin: 0 0 0.6rem;
    font-weight: 600;
  }

  .tp-h1 {
    font-family: var(--font-display, Georgia, serif);
    font-size: clamp(2rem, 3.6vw, 3.25rem);
    line-height: 1.1;
    letter-spacing: -0.02em;
    margin: 0 0 1rem;
    max-width: 28ch;
  }

  .tp-standfirst {
    font-size: 1.12rem;
    color: var(--tp-graphite);
    max-width: 68ch;
    margin: 0;
  }

  .tp-folio-layout {
    display: grid;
    grid-template-columns: minmax(0, 1.55fr) minmax(280px, 0.85fr);
    gap: 2rem;
    padding: 2.25rem 0;
    border-bottom: 1px solid var(--tp-rule-strong);
    align-items: start;
  }

  @media (max-width: 980px) {
    .tp-folio-layout {
      grid-template-columns: 1fr;
    }
  }

  .tp-prose h2 {
    font-family: var(--font-display, Georgia, serif);
    font-size: 1.55rem;
    margin: 0 0 0.75rem;
  }

  .tp-prose p {
    margin: 0 0 1.1rem;
    max-width: 66ch;
  }

  .tp-scrub {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.08rem 0.45rem;
    background-color: var(--tp-minium-soft);
    color: var(--tp-minium);
    border-bottom: 2px dotted var(--tp-minium);
    font-family: var(--font-mono, monospace);
    font-size: 0.9em;
    font-weight: 600;
    cursor: ew-resize;
  }

  .tp-eq-chip {
    display: inline-block;
    padding: 0.1rem 0.45rem;
    background-color: var(--tp-prussian-soft);
    color: var(--tp-prussian);
    border: 1px solid var(--tp-rule-strong);
    font-family: var(--font-mono, monospace);
    font-size: 0.86em;
    cursor: pointer;
  }

  .tp-eq-chip:hover,
  .tp-eq-chip[data-active="true"] {
    background-color: var(--tp-highlight);
    border-color: var(--tp-minium);
  }

  .tp-plate {
    background-color: var(--tp-vellum);
    border: 1px solid var(--tp-rule-strong);
    padding: 1.25rem;
    margin: 1.25rem 0;
  }

  .tp-plate-head {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    gap: 0.75rem;
    padding-bottom: 0.75rem;
    margin-bottom: 1rem;
    border-bottom: 1px solid var(--tp-rule);
    font-family: var(--font-mono, monospace);
    font-size: 0.75rem;
    color: var(--tp-slate);
    text-transform: uppercase;
  }

  .tp-stepper {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin-bottom: 1rem;
  }

  .tp-step-btn {
    font-family: var(--font-mono, monospace);
    font-size: 0.74rem;
    padding: 0.42rem 0.75rem;
    background-color: var(--tp-stone);
    color: var(--tp-graphite);
    border: 1px solid var(--tp-rule-strong);
    cursor: pointer;
  }

  .tp-step-btn[aria-pressed="true"] {
    background-color: var(--tp-ink);
    color: var(--tp-vellum);
    border-color: var(--tp-ink);
  }

  .tp-controls-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
    gap: 1rem;
    margin-top: 1rem;
    padding-top: 0.9rem;
    border-top: 1px solid var(--tp-rule);
  }

  .tp-control-group label {
    display: flex;
    justify-content: space-between;
    font-family: var(--font-mono, monospace);
    font-size: 0.75rem;
    color: var(--tp-graphite);
    margin-bottom: 0.3rem;
  }

  .tp-control-group input[type="range"] {
    width: 100%;
    accent-color: var(--tp-minium);
  }

  .tp-svg-stage {
    width: 100%;
    height: auto;
    display: block;
    background-color: var(--tp-stone);
    border: 1px solid var(--tp-rule);
  }

  .tp-fullscreen-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.3rem 0.65rem;
    background-color: var(--tp-stone);
    color: var(--tp-graphite);
    border: 1px solid var(--tp-rule-strong);
    font-family: var(--font-mono, monospace);
    font-size: 0.72rem;
    cursor: pointer;
    text-transform: uppercase;
    transition: background-color 0.15s ease, color 0.15s ease, border-color 0.15s ease;
  }

  .tp-fullscreen-btn:hover,
  .tp-fullscreen-btn:focus-visible {
    background-color: var(--tp-ink);
    color: var(--tp-vellum);
    border-color: var(--tp-ink);
  }

  .tp-scrub.tp-scrubbing {
    background-color: var(--tp-highlight);
    border-bottom-style: solid;
    outline: 2px solid var(--tp-minium);
    user-select: none;
  }

  .tp-webgl-canvas {
    width: 100%;
    height: 280px;
    display: block;
    background-color: var(--tp-stone);
    border: 1px solid var(--tp-rule);
    margin-top: 0.75rem;
    touch-action: none;
    cursor: grab;
  }

  .tp-webgl-canvas:active {
    cursor: grabbing;
  }

  .tp-plate:fullscreen,
  .tp-plate:-webkit-full-screen {
    background-color: var(--tp-vellum);
    color: var(--tp-ink);
    padding: 2rem 3rem;
    overflow-y: auto;
    width: 100vw;
    height: 100vh;
    box-sizing: border-box;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    z-index: 99999;
  }

  .tp-plate:fullscreen .tp-svg-stage,
  .tp-plate:-webkit-full-screen .tp-svg-stage {
    max-height: 52vh;
    width: 100%;
    object-fit: contain;
  }

  .tp-plate:fullscreen .tp-webgl-canvas,
  .tp-plate:-webkit-full-screen .tp-webgl-canvas {
    height: 48vh;
    max-height: 500px;
  }

  .tp-svg-highlighted {
    stroke-width: 3.5;
    filter: drop-shadow(0 0 6px var(--tp-minium));
  }

  .tp-readout-strip {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 0.75rem;
    margin-top: 1rem;
  }

  .tp-readout-box {
    padding: 0.65rem 0.8rem;
    background-color: var(--tp-stone);
    border: 1px solid var(--tp-rule);
    border-left: 3px solid var(--tp-prussian);
  }

  .tp-readout-box[data-alert="true"] {
    border-left-color: var(--tp-minium);
    background-color: var(--tp-minium-soft);
  }

  .tp-readout-k {
    display: block;
    font-family: var(--font-mono, monospace);
    font-size: 0.68rem;
    text-transform: uppercase;
    color: var(--tp-slate);
  }

  .tp-readout-v {
    font-family: var(--font-mono, monospace);
    font-size: 0.96rem;
    font-weight: 700;
    color: var(--tp-ink);
  }

  .tp-rail {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
  }

  .tp-sidenote {
    padding: 0.9rem 1rem;
    background-color: var(--tp-vellum);
    border: 1px solid var(--tp-rule);
    border-left: 3px solid var(--tp-verdigris);
    font-size: 0.86rem;
    color: var(--tp-graphite);
  }

  .tp-sidenote-id {
    display: block;
    font-family: var(--font-mono, monospace);
    font-size: 0.7rem;
    text-transform: uppercase;
    color: var(--tp-verdigris);
    margin-bottom: 0.25rem;
    font-weight: 600;
  }

  .tp-spec-plate {
    padding: 1rem;
    background-color: var(--tp-vellum);
    border: 1px solid var(--tp-rule-strong);
    border-top: 3px solid var(--tp-sienna);
  }

  .tp-spec-tag {
    display: inline-block;
    font-family: var(--font-mono, monospace);
    font-size: 0.66rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    padding: 0.15rem 0.45rem;
    background-color: var(--tp-sienna-soft);
    color: var(--tp-sienna);
    margin-bottom: 0.5rem;
  }

  .tp-spec-title {
    font-family: var(--font-display, Georgia, serif);
    font-size: 1.02rem;
    margin: 0 0 0.4rem;
    color: var(--tp-ink);
  }

  .tp-spec-meta {
    font-family: var(--font-mono, monospace);
    font-size: 0.74rem;
    color: var(--tp-slate);
    margin: 0.5rem 0 0;
  }

  .tp-issue-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
  }

  .tp-issue-card {
    background-color: var(--tp-vellum);
    border: 1px solid var(--tp-rule-strong);
    border-top: 4px solid var(--tp-prussian);
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
  }

  .tp-issue-card[data-track="architecture"] {
    border-top-color: var(--tp-minium);
  }

  .tp-issue-card[data-track="engineering"] {
    border-top-color: var(--tp-verdigris);
  }

  .tp-issue-cta {
    display: inline-block;
    margin-top: 1rem;
    font-family: var(--font-mono, monospace);
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--tp-prussian);
    text-decoration: none;
    font-weight: 700;
  }

  .tp-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.85rem;
    margin: 1rem 0;
    background-color: var(--tp-vellum);
  }

  .tp-table th,
  .tp-table td {
    padding: 0.65rem 0.8rem;
    border: 1px solid var(--tp-rule);
    text-align: left;
    vertical-align: top;
  }

  .tp-table th {
    font-family: var(--font-mono, monospace);
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--tp-slate);
    background-color: var(--tp-mortar);
  }

  .tp-footer {
    margin-top: 3rem;
    padding-top: 1.5rem;
    border-top: 2px solid var(--tp-ink);
    font-family: var(--font-mono, monospace);
    font-size: 0.76rem;
    color: var(--tp-slate);
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 1rem;
  }

  /* Living Edition, Redating Timeline & Frontier Council Ledger */
  .tp-rev-ledger {
    background-color: var(--tp-vellum);
    border: 1.5px solid var(--tp-ink);
    padding: 1.25rem 1.4rem;
    margin-top: 2rem;
  }

  .tp-rev-header {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    padding-bottom: 0.85rem;
    border-bottom: 1px solid var(--tp-rule-strong);
    margin-bottom: 1rem;
  }

  .tp-rev-kicker {
    font-family: var(--font-mono, monospace);
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--tp-minium);
  }

  .tp-rev-dates {
    font-family: var(--font-mono, monospace);
    font-size: 0.72rem;
    color: var(--tp-graphite);
  }

  .tp-rev-pills {
    display: flex;
    flex-wrap: wrap;
    gap: 0.45rem;
    margin-bottom: 1rem;
  }

  .tp-rev-btn {
    font-family: var(--font-mono, monospace);
    font-size: 0.72rem;
    padding: 0.36rem 0.72rem;
    border: 1px solid var(--tp-rule-strong);
    background-color: var(--tp-stone);
    color: var(--tp-ink);
    cursor: pointer;
    text-align: left;
  }

  .tp-rev-btn[aria-pressed="true"] {
    background-color: var(--tp-ink);
    color: var(--tp-vellum);
    border-color: var(--tp-ink);
    font-weight: 600;
  }

  .tp-rev-detail {
    background-color: var(--tp-stone);
    border-left: 3px solid var(--tp-prussian);
    padding: 0.85rem 1rem;
    margin-bottom: 1.1rem;
  }

  .tp-rev-summary {
    font-size: 0.92rem;
    color: var(--tp-ink);
    margin: 0 0 0.45rem 0;
  }

  .tp-rev-opus {
    font-family: var(--font-mono, monospace);
    font-size: 0.75rem;
    color: var(--tp-prussian);
    margin: 0;
  }

  .tp-council-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 0.65rem;
  }

  .tp-council-seat {
    border: 1px solid var(--tp-rule);
    background-color: var(--tp-stone);
    padding: 0.65rem 0.8rem;
  }

  .tp-council-role {
    display: block;
    font-family: var(--font-mono, monospace);
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--tp-slate);
    margin-bottom: 0.2rem;
  }

  .tp-council-model {
    display: block;
    font-family: var(--font-sans, sans-serif);
    font-size: 0.84rem;
    font-weight: 700;
    color: var(--tp-ink);
    margin-bottom: 0.2rem;
  }

  .tp-council-verdict {
    display: block;
    font-family: var(--font-mono, monospace);
    font-size: 0.70rem;
    color: var(--tp-verdigris);
  }

  /* Portable AI-Agnostic SKILL.md Companion Box */
  .tp-skill-box {
    background-color: var(--tp-vellum);
    border: 1.5px solid var(--tp-prussian);
    padding: 1.15rem 1.35rem;
    margin-top: 1.5rem;
  }

  .tp-skill-header {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    margin-bottom: 0.65rem;
  }

  .tp-skill-kicker {
    font-family: var(--font-mono, monospace);
    font-size: 0.70rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--tp-prussian);
  }

  .tp-skill-compat {
    font-family: var(--font-mono, monospace);
    font-size: 0.68rem;
    color: var(--tp-slate);
  }

  .tp-skill-desc {
    font-size: 0.88rem;
    color: var(--tp-graphite);
    margin: 0 0 0.85rem 0;
  }

  .tp-skill-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.55rem;
    margin-bottom: 0.85rem;
  }

  .tp-skill-btn {
    font-family: var(--font-mono, monospace);
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    padding: 0.42rem 0.85rem;
    border: 1px solid var(--tp-prussian);
    background-color: var(--tp-prussian);
    color: var(--tp-vellum);
    cursor: pointer;
  }

  .tp-skill-btn-secondary {
    background-color: var(--tp-stone);
    color: var(--tp-ink);
    border-color: var(--tp-rule-strong);
  }

  .tp-skill-pre {
    margin: 0;
    padding: 0.8rem 0.95rem;
    background-color: var(--tp-stone);
    border: 1px solid var(--tp-rule);
    font-family: var(--font-mono, monospace);
    font-size: 0.72rem;
    line-height: 1.48;
    color: var(--tp-ink);
    overflow-x: auto;
    white-space: pre-wrap;
  }

  /* Swiss Issue Rack (Multi-Article Switcher) */
  .tp-issue-rack {
    background-color: var(--tp-stone);
    border: 1px solid var(--tp-rule-strong);
    padding: 1rem 1.2rem;
    margin-bottom: 1.4rem;
  }

  .tp-rack-header {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 0.65rem;
    padding-bottom: 0.65rem;
    margin-bottom: 0.85rem;
    border-bottom: 1px solid var(--tp-rule);
  }

  .tp-rack-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 0.65rem;
  }

  .tp-rack-card {
    display: flex;
    text-decoration: none;
    flex-direction: column;
    align-items: flex-start;
    justify-content: space-between;
    gap: 0.42rem;
    padding: 0.78rem 0.9rem;
    background-color: var(--tp-vellum);
    border: 1px solid var(--tp-rule-strong);
    color: var(--tp-ink);
    text-align: left;
    cursor: pointer;
    transition: border-color 140ms ease, background-color 140ms ease;
  }

  .tp-rack-card:hover {
    border-color: var(--tp-prussian);
  }

  .tp-rack-card[aria-pressed="true"],
  .tp-rack-card[aria-current="page"] {
    border: 2px solid var(--tp-prussian);
    background-color: var(--tp-stone-deep);
  }

  .tp-rack-top {
    display: flex;
    width: 100%;
    align-items: center;
    justify-content: space-between;
    gap: 0.45rem;
  }

  .tp-rack-id {
    font-family: var(--font-mono, monospace);
    font-size: 0.74rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    color: var(--tp-minium);
  }

  .tp-rack-badge {
    font-family: var(--font-mono, monospace);
    font-size: 0.63rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    padding: 0.14rem 0.42rem;
    border: 1px solid var(--tp-rule-strong);
    background-color: var(--tp-stone);
    color: var(--tp-graphite);
  }

  .tp-rack-title {
    font-family: var(--font-serif, Georgia, serif);
    font-size: 0.95rem;
    font-weight: 700;
    line-height: 1.28;
    color: var(--tp-ink);
  }

  .tp-rack-law {
    font-family: var(--font-mono, monospace);
    font-size: 0.68rem;
    color: var(--tp-prussian);
  }

  /* Complete Multi-Article Issue Stream */
  .tp-dispatch-stream {
    margin-top: 2.2rem;
    padding-top: 1.5rem;
    border-top: 2px solid var(--tp-ink);
  }

  .tp-section-header {
    margin-bottom: 1.15rem;
  }

  .tp-h2 {
    font-family: var(--font-serif, Georgia, serif);
    font-size: clamp(1.35rem, 2.2vw, 1.8rem);
    line-height: 1.2;
    margin: 0.25rem 0 0.75rem 0;
    color: var(--tp-ink);
  }

  .tp-dispatch-list {
    display: flex;
    flex-direction: column;
    gap: 1.15rem;
  }

  .tp-dispatch-card {
    background-color: var(--tp-stone);
    border: 1px solid var(--tp-rule-strong);
    padding: 1.2rem 1.35rem;
  }

  .tp-dispatch-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
    padding-bottom: 0.55rem;
    margin-bottom: 0.65rem;
    border-bottom: 1px solid var(--tp-rule);
  }

  .tp-dispatch-h3 {
    font-family: var(--font-serif, Georgia, serif);
    font-size: 1.22rem;
    line-height: 1.25;
    margin: 0 0 0.45rem 0;
    color: var(--tp-ink);
  }

  .tp-dispatch-sub {
    font-size: 0.93rem;
    color: var(--tp-graphite);
    margin: 0 0 0.95rem 0;
    max-width: 74ch;
  }

  .tp-dispatch-grid {
    display: grid;
    grid-template-columns: 1.35fr 1fr;
    gap: 1.15rem;
    align-items: start;
  }

  @media (max-width: 860px) {
    .tp-dispatch-grid {
      grid-template-columns: 1fr;
    }
  }

  .tp-dispatch-steps {
    background-color: var(--tp-vellum);
    border: 1px solid var(--tp-rule);
    padding: 0.85rem 1rem;
    font-size: 0.86rem;
    line-height: 1.5;
  }

  .tp-dispatch-steps ol {
    margin: 0.45rem 0 0 1.15rem;
    padding: 0;
  }

  .tp-dispatch-steps li {
    margin-bottom: 0.35rem;
  }

  .tp-dispatch-side {
    display: flex;
    flex-direction: column;
    gap: 0.65rem;
  }

  .tp-dispatch-spec {
    background-color: var(--tp-vellum);
    border-left: 3px solid var(--tp-ochre);
    padding: 0.65rem 0.8rem;
    font-size: 0.8rem;
    color: var(--tp-graphite);
  }

  .tp-sidenote-num {
    display: block;
    font-family: var(--font-mono, monospace);
    font-size: 0.68rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    color: var(--tp-minium);
    margin-bottom: 0.25rem;
  }

  /* 5-Act Long-Form Editorial Magazine & Informatico.ai Styles */
  .tp-rack-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  @media (max-width: 980px) {
    .tp-rack-grid {
      grid-template-columns: repeat(2, minmax(0, 1fr));
    }
  }

  @media (max-width: 640px) {
    .tp-rack-grid {
      grid-template-columns: 1fr;
    }
  }

  .tp-reading-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 0.85rem;
  }

  .tp-meta-pill {
    font-family: var(--font-mono, monospace);
    font-size: 0.68rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    padding: 0.22rem 0.55rem;
    background-color: var(--tp-vellum);
    border: 1px solid var(--tp-rule-strong);
    color: var(--tp-graphite);
  }

  .tp-meta-pill-verified {
    border-color: var(--tp-verdigris);
    color: var(--tp-verdigris);
    background-color: var(--tp-verdigris-soft);
  }

  .tp-dropcap::first-letter {
    float: left;
    font-family: var(--font-display, Georgia, serif);
    font-size: 3.35rem;
    line-height: 0.84;
    padding-right: 0.55rem;
    padding-top: 0.12rem;
    color: var(--tp-minium);
    font-weight: 700;
  }

  .tp-pullquote {
    margin: 1.4rem 0;
    padding: 1rem 1.25rem;
    background-color: var(--tp-vellum);
    border-left: 4px solid var(--tp-minium);
    border-top: 1px solid var(--tp-rule);
    border-bottom: 1px solid var(--tp-rule);
    font-family: var(--font-display, Georgia, serif);
    font-size: 1.12rem;
    font-style: italic;
    line-height: 1.45;
    color: var(--tp-ink);
  }

  .tp-pullquote p {
    margin: 0;
  }

  .tp-analogy-box {
    margin: 1rem 0 1.35rem;
    padding: 0.9rem 1.1rem;
    background-color: var(--tp-vellum);
    border: 1px solid var(--tp-rule-strong);
    border-left: 3px solid var(--tp-prussian);
    font-size: 0.92rem;
    color: var(--tp-ink);
  }

  .tp-walkthrough-box {
    margin: 0.85rem 0 1.15rem;
    padding: 0.95rem 1.15rem;
    background-color: var(--tp-vellum);
    border: 1px solid var(--tp-rule-strong);
    border-top: 3px solid var(--tp-verdigris);
  }

  .tp-walkthrough-box h3 {
    margin: 0 0 0.45rem 0;
    font-size: 0.95rem;
    font-family: var(--font-mono, monospace);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--tp-verdigris);
  }

  .tp-walkthrough-box ol {
    margin: 0;
    padding-left: 1.2rem;
    font-size: 0.88rem;
    line-height: 1.5;
  }

  .tp-walkthrough-box li {
    margin-bottom: 0.35rem;
  }

  .tp-cf-bridge-box {
    margin: 1.15rem 0 1.4rem;
    padding: 1.05rem 1.2rem;
    background-color: var(--tp-vellum);
    border: 1.5px solid var(--tp-verdigris);
    border-left: 5px solid var(--tp-verdigris);
  }

  .tp-cf-bridge-box h3 {
    margin: 0 0 0.45rem 0;
    font-family: var(--font-mono, monospace);
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--tp-verdigris);
  }

  .tp-cf-bridge-box p {
    margin: 0;
    font-size: 0.93rem;
  }

  .tp-discovery-news-box {
    margin: 1.15rem 0;
    padding: 1.05rem 1.2rem;
    background-color: var(--tp-vellum);
    border: 1px solid var(--tp-rule-strong);
    border-left: 5px solid var(--tp-prussian);
  }

  .tp-discovery-news-box h3 {
    margin: 0.25rem 0 0.45rem 0;
    font-size: 1.02rem;
    color: var(--tp-ink);
  }

  .tp-discovery-news-box p {
    margin: 0;
    font-size: 0.92rem;
    line-height: 1.55;
  }

  .tp-cite-link {
    color: var(--tp-prussian);
    text-decoration: underline;
    text-underline-offset: 2px;
    font-weight: 600;
  }

  .tp-scite-badge-link {
    display: inline-block;
    font-family: var(--font-mono, monospace);
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--tp-verdigris);
    text-decoration: none;
    padding: 0.08rem 0.38rem;
    border: 1px solid var(--tp-verdigris);
    background-color: var(--tp-verdigris-soft);
  }

  .tp-scite-strip {
    margin: 1rem 0 1.35rem;
    padding: 1rem 1.15rem;
    background-color: var(--tp-vellum);
    border: 1px solid var(--tp-rule-strong);
    border-left: 4px solid var(--tp-prussian);
    font-size: 0.88rem;
  }

  .tp-scite-strip h3 {
    margin: 0 0 0.45rem 0;
    font-family: var(--font-mono, monospace);
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--tp-prussian);
  }

  .tp-discovery-steps {
    margin: 0.6rem 0 0;
    padding-left: 1.2rem;
    font-size: 0.85rem;
    line-height: 1.48;
  }

  .tp-discovery-steps li {
    margin-bottom: 0.3rem;
  }

  .tp-sources-list {
    font-size: 0.84rem;
    line-height: 1.5;
    color: var(--tp-graphite);
    padding-left: 1.25rem;
  }

  .tp-sources-list li {
    margin-bottom: 0.4rem;
  }

  .tp-sponsor-slot {
    min-height: 176px;
    padding: 1rem;
    background-color: var(--tp-vellum);
    border: 1px dashed var(--tp-rule-strong);
    border-top: 3px solid var(--tp-ochre);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
  }

  .tp-sponsor-kicker {
    display: inline-block;
    font-family: var(--font-mono, monospace);
    font-size: 0.64rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--tp-sienna);
    margin-bottom: 0.35rem;
  }

  .tp-rail code,
  .tp-spec-plate code,
  .tp-sponsor-slot code,
  .tp-scite-strip code {
    overflow-wrap: anywhere;
    word-break: break-word;
  }

  .tp-editorial-figure {
    margin: 0 0 1.6rem 0;
    background-color: var(--tp-vellum);
    border: 1px solid var(--tp-rule-strong);
    border-top: 3px solid var(--tp-prussian);
    overflow: hidden;
  }

  .tp-editorial-badge-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.5rem;
    padding: 0.45rem 0.85rem;
    background-color: var(--tp-stone);
    border-bottom: 1px solid var(--tp-rule);
    font-family: var(--font-mono, monospace);
    font-size: 0.68rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--tp-graphite);
  }

  .tp-editorial-img {
    display: block;
    width: 100%;
    height: auto;
    aspect-ratio: 16 / 9;
    object-fit: cover;
    background-color: var(--tp-stone);
  }

  .tp-editorial-caption {
    padding: 0.75rem 1rem;
    font-size: 0.84rem;
    line-height: 1.5;
    color: var(--tp-ink);
    border-top: 1px solid var(--tp-rule);
  }

  .tp-drawn-note {
    display: block;
    margin-top: 0.35rem;
    font-size: 0.78rem;
    color: var(--tp-graphite);
  }

  .tp-dispatch-plate-wrap {
    margin: -0.25rem 0 0.85rem 0;
    border: 1px solid var(--tp-rule-strong);
    overflow: hidden;
    background-color: var(--tp-stone);
  }

  .tp-dispatch-thumb {
    display: block;
    width: 100%;
    height: auto;
    aspect-ratio: 16 / 9;
    object-fit: cover;
  }

  .tp-utopia-showcase {
    margin: 1.5rem 0 2.2rem 0;
    padding: 1.5rem;
    background-color: var(--tp-vellum);
    border: 1.5px solid var(--tp-rule-strong);
    border-top: 4px solid var(--tp-prussian);
  }

  .tp-utopia-diptych {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.25rem;
    margin: 1.25rem 0;
  }

  @media (max-width: 920px) {
    .tp-utopia-diptych {
      grid-template-columns: 1fr;
    }
  }


  .tp-human-potential-box {
    margin: 1.15rem 0;
    padding: 1rem 1.2rem;
    background-color: var(--tp-verdigris-soft);
    border: 1px solid var(--tp-verdigris);
    border-left: 5px solid var(--tp-verdigris);
    font-size: 0.92rem;
    line-height: 1.55;
    color: var(--tp-ink);
  }

  .tp-human-potential-box p {
    margin: 0.25rem 0 0 0;
  }

  .tp-sweep-btn[aria-pressed="true"] {
    background-color: var(--tp-verdigris);
    border-color: var(--tp-verdigris);
    color: var(--tp-vellum);
  }

  .tp-lens-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 0.35rem;
    align-items: center;
  }

  .tp-lens-btn {
    font-family: var(--font-mono, monospace);
    font-size: 0.68rem;
    font-weight: 600;
    padding: 0.28rem 0.58rem;
    background-color: var(--tp-stone);
    color: var(--tp-ink);
    border: 1px solid var(--tp-rule-strong);
    cursor: pointer;
    transition: background-color 150ms ease, color 150ms ease, transform 150ms ease;
  }

  .tp-lens-btn[aria-pressed="true"] {
    background-color: var(--tp-prussian);
    color: var(--tp-vellum);
    border-color: var(--tp-prussian);
  }

  .tp-lens-btn-util {
    border-style: dashed;
  }

  .tp-svg-wrap,
  .tp-webgl-wrap {
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    height: 100%;
    background-color: var(--tp-vellum);
  }

  .tp-svg-wrap .tp-plate-head,
  .tp-webgl-wrap .tp-plate-head {
    min-height: 44px;
    margin-bottom: 0.45rem;
    padding-bottom: 0.42rem;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 0.45rem;
  }

  .tp-plate-live-badge {
    display: inline-flex;
    align-items: center;
    height: 24px;
    padding: 0 0.5rem;
    font-family: var(--font-mono, monospace);
    font-size: 0.67rem;
    font-weight: 700;
    color: var(--tp-prussian);
    background-color: var(--tp-stone);
    border: 1px solid var(--tp-rule-strong);
    white-space: nowrap;
  }

  .tp-svg-wrap .tp-svg-stage,
  .tp-webgl-wrap .tp-webgl-canvas,
  .tp-webgl-wrap .tp-lens-svg {
    width: 100%;
    height: 265px;
    margin-top: 0;
    background-color: var(--tp-stone);
    border: 1px solid var(--tp-rule-strong);
    box-sizing: border-box;
  }

  .tp-lens-svg:not([hidden]),
  .tp-webgl-canvas:not([hidden]) {
    display: block;
  }

  .tp-lens-svg[hidden],
  .tp-webgl-canvas[hidden] {
    display: none;
  }

  .tp-stage-axis-hud {
    margin-top: 0.42rem;
    padding: 0.34rem 0.62rem;
    background-color: var(--tp-stone);
    border: 1px solid var(--tp-rule);
    font-family: var(--font-mono, monospace);
    font-size: 0.68rem;
    line-height: 1.35;
    color: var(--tp-graphite);
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 0.4rem;
  }

  .tp-svg-beacon {
    transition: transform 320ms cubic-bezier(0.22, 1, 0.36, 1);
  }

  .tp-svg-stage path,
  .tp-svg-stage polygon,
  .tp-svg-stage circle,
  .tp-svg-stage rect {
    transition: d 180ms ease, points 180ms ease, r 180ms ease, cx 180ms ease, cy 180ms ease, x 180ms ease, fill 180ms ease;
  }

  @media (prefers-reduced-motion: no-preference) {
    @keyframes tpSvgDashFlow {
      to {
        stroke-dashoffset: -24;
      }
    }

    @keyframes tpBeaconPulse {
      0%, 100% {
        r: 12px;
        stroke-opacity: 0.85;
      }
      50% {
        r: 17px;
        stroke-opacity: 0.35;
      }
    }

    .tp-svg-flow-line {
      animation: tpSvgDashFlow var(--tp-flow-duration, 1.8s) linear infinite;
    }

    .tp-svg-beacon-ring {
      animation: tpBeaconPulse 2.2s ease-in-out infinite;
    }

    @keyframes tpWavefrontExpand {
      0% {
        r: 6px;
        stroke-opacity: 0.78;
        fill-opacity: 0.18;
      }
      100% {
        r: 34px;
        stroke-opacity: 0;
        fill-opacity: 0;
      }
    }

    .tp-wave-ring {
      animation: tpWavefrontExpand 2.6s cubic-bezier(0.16, 1, 0.3, 1) infinite;
    }

    .tp-wave-ring-2 {
      animation-delay: 0.86s;
    }

    .tp-wave-ring-3 {
      animation-delay: 1.72s;
    }
  }

  /* Widescreen Full-Viewport Editorial Grid, Split-Stage Workbench & Motion Plate Controls */
  @media (min-width: 1520px) {
    .tp-rack-grid {
      grid-template-columns: repeat(6, minmax(0, 1fr));
    }
  }

  @media (min-width: 1360px) {
    .tp-folio-layout {
      grid-template-columns: minmax(0, 2.35fr) minmax(300px, 0.78fr);
      gap: 2.5rem;
    }

    .tp-dispatch-list {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 1.35rem;
    }
  }

  .tp-plate-head-actions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.55rem;
  }

  .tp-plate-split-workbench {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.15rem;
    align-items: stretch;
  }

  @media (min-width: 1220px) {
    .tp-plate-split-workbench[data-layout-mode="split"] {
      grid-template-columns: minmax(0, 1.06fr) minmax(0, 0.94fr);
    }
  }

  .tp-plate-col-svg,
  .tp-plate-col-webgl {
    min-width: 0;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
  }

  .tp-plate-col-webgl .tp-webgl-wrap {
    margin-top: 0;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
  }

  .tp-layout-toggle-btn[aria-pressed="true"] {
    background-color: var(--tp-prussian);
    color: var(--tp-vellum);
    border-color: var(--tp-prussian);
  }

  .tp-media-mode-bar {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.35rem;
  }

  .tp-media-mode-btn {
    font-family: var(--font-mono, monospace);
    font-size: 0.65rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    padding: 0.2rem 0.52rem;
    background-color: var(--tp-vellum);
    color: var(--tp-ink);
    border: 1px solid var(--tp-rule-strong);
    cursor: pointer;
    transition: background-color 140ms ease, color 140ms ease, border-color 140ms ease;
  }

  .tp-media-mode-btn[aria-pressed="true"] {
    background-color: var(--tp-prussian);
    color: var(--tp-vellum);
    border-color: var(--tp-prussian);
  }

  .tp-editorial-media-stage {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 9;
    background-color: var(--tp-stone);
    overflow: hidden;
  }

  .tp-editorial-svg-overlay {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 2;
  }

  .tp-svg-particle {
    transition: r 150ms ease, fill-opacity 150ms ease;
  }

  .tp-vector-arrow line,
  .tp-vector-arrow polygon {
    transition: transform 160ms ease, stroke 160ms ease, fill 160ms ease;
  }

  .tp-volumes-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.25rem;
    margin: 1.25rem 0 2rem 0;
  }

  @media (max-width: 1100px) {
    .tp-volumes-grid {
      grid-template-columns: 1fr;
    }
  }

  .tp-volume-card {
    background-color: var(--tp-vellum);
    border: 1.5px solid var(--tp-rule-strong);
    border-top: 4px solid var(--tp-prussian);
    padding: 1.25rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    gap: 1rem;
  }

  .tp-volume-card h3 {
    margin: 0.35rem 0 0.55rem 0;
    font-size: 1.08rem;
    line-height: 1.35;
    color: var(--tp-ink);
  }

  .tp-volume-card p {
    margin: 0 0 0.75rem 0;
    font-size: 0.88rem;
    line-height: 1.52;
    color: var(--tp-graphite);
  }

  .tp-volume-folios {
    font-family: var(--font-mono, monospace);
    font-size: 0.78rem;
    padding: 0.5rem 0.65rem;
    background-color: var(--tp-stone);
    border: 1px solid var(--tp-rule);
    margin-bottom: 0.35rem;
  }

  .tp-volume-card[data-volume-active="true"] {
    border-color: var(--tp-verdigris);
    border-top-width: 4px;
    border-top-color: var(--tp-verdigris);
    background-color: var(--tp-verdigris-soft);
  }

  .tp-volume-pillar-grid {
    display: flex;
    flex-direction: column;
    gap: 0.32rem;
    font-family: var(--font-mono, monospace);
    font-size: 0.74rem;
    padding: 0.55rem 0.68rem;
    background-color: var(--tp-stone);
    border: 1px solid var(--tp-rule);
    margin-bottom: 0.45rem;
  }

  .tp-vol-pillar-row {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.35rem;
    line-height: 1.4;
  }

  .tp-vol-p-tag {
    display: inline-block;
    min-width: 3.1rem;
    text-align: center;
    font-size: 0.64rem;
    font-weight: 700;
    padding: 0.08rem 0.32rem;
    background-color: var(--tp-vellum);
    border: 1px solid var(--tp-rule-strong);
    color: var(--tp-prussian);
  }

  .tp-volume-card-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    align-items: center;
  }

  .tp-volume-nav-bar {
    background-color: var(--tp-vellum);
    border-bottom: 1px solid var(--tp-rule-strong);
    padding: 0.42rem clamp(1.1rem, 2.4vw, 2.75rem);
    position: relative;
    z-index: 35;
  }

  .tp-volume-nav-inner {
    max-width: clamp(1440px, 95vw, 1880px);
    margin: 0 auto;
  }

  .tp-volume-nav-top {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    min-height: 30px;
    gap: 0.65rem;
  }

  .tp-breadcrumb-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.38rem;
    font-family: var(--font-mono, monospace);
    font-size: 0.73rem;
    line-height: 1;
  }

  .tp-crumb-item {
    display: inline-flex;
    align-items: center;
    min-height: 28px;
    line-height: 1;
  }

  .tp-crumb-link {
    display: inline-flex;
    align-items: center;
    height: 28px;
    line-height: 1;
    color: var(--tp-graphite);
    text-decoration: none;
    font-weight: 600;
    padding: 0 0.42rem;
    border-radius: 2px;
    box-sizing: border-box;
  }

  .tp-crumb-link:hover {
    color: var(--tp-ink);
    background-color: var(--tp-mortar);
    text-decoration: underline;
  }

  .tp-crumb-sep {
    display: inline-flex;
    align-items: center;
    height: 28px;
    line-height: 1;
    color: var(--tp-slate);
    opacity: 0.65;
    user-select: none;
  }

  .tp-crumb-current {
    color: var(--tp-ink);
    display: inline-flex;
    flex-wrap: wrap;
    align-items: center;
    min-height: 28px;
    line-height: 1;
    gap: 0.35rem;
  }

  .tp-crumb-title {
    color: var(--tp-graphite);
    font-weight: 500;
  }

  .tp-vol-hub-link,
  .tp-crumb-vol-tag {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 28px;
    line-height: 1;
    font-family: var(--font-mono, monospace);
    font-size: 0.67rem;
    font-weight: 700;
    color: var(--tp-verdigris);
    background-color: var(--tp-verdigris-soft);
    border: 1px solid var(--tp-verdigris);
    padding: 0 0.52rem;
    text-decoration: none;
    box-sizing: border-box;
    white-space: nowrap;
  }

  .tp-vol-hub-link:hover {
    background-color: var(--tp-verdigris);
    color: var(--tp-vellum);
  }

  .tp-volume-nav-left,
  .tp-volume-nav-right {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.42rem;
  }

  .tp-crumb-drawer {
    position: relative;
    display: inline-flex;
    align-items: center;
  }

  .tp-crumb-drawer-toggle {
    list-style: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 28px;
    line-height: 1;
    font-family: var(--font-mono, monospace);
    font-size: 0.68rem;
    font-weight: 700;
    padding: 0 0.68rem;
    background-color: var(--tp-prussian);
    color: var(--tp-vellum);
    border: 1px solid var(--tp-prussian);
    cursor: pointer;
    user-select: none;
    box-sizing: border-box;
    white-space: nowrap;
  }

  .tp-crumb-drawer-toggle::-webkit-details-marker {
    display: none;
  }

  .tp-crumb-drawer[open] .tp-crumb-drawer-toggle {
    background-color: var(--tp-verdigris);
    color: var(--tp-vellum);
    border-color: var(--tp-verdigris);
  }

  .tp-crumb-drawer-panel {
    position: absolute;
    right: 0;
    top: calc(100% + 0.45rem);
    width: min(1220px, 95vw);
    max-height: 82vh;
    overflow-y: auto;
    background-color: var(--tp-vellum);
    border: 1.5px solid var(--tp-ink);
    box-shadow: var(--tp-shadow-flyout);
    padding: 1rem 1.15rem;
    z-index: 60;
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
  }

  .tp-crumb-drawer-section {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
  }

  .tp-crumb-drawer-section + .tp-crumb-drawer-section {
    padding-top: 0.72rem;
    border-top: 1px solid var(--tp-rule-strong);
  }

  .tp-crumb-drawer-header {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    gap: 0.5rem;
  }

  .tp-topic-mega-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0.65rem;
  }

  @media (max-width: 1120px) {
    .tp-topic-mega-grid {
      grid-template-columns: repeat(3, minmax(0, 1fr));
    }
  }

  @media (max-width: 720px) {
    .tp-topic-mega-grid {
      grid-template-columns: 1fr;
    }
  }

  .tp-topic-col {
    display: flex;
    flex-direction: column;
    gap: 0.32rem;
    padding: 0.55rem;
    background-color: var(--tp-stone);
    border: 1px solid var(--tp-rule);
    border-top: 3px solid var(--tp-prussian);
  }

  .tp-topic-col[data-active-topic="true"] {
    border-top-color: var(--tp-verdigris);
    background-color: var(--tp-verdigris-soft);
  }

  .tp-topic-col-head {
    display: flex;
    flex-direction: column;
    gap: 0.1rem;
    text-decoration: none;
    color: var(--tp-ink);
    padding-bottom: 0.35rem;
    border-bottom: 1px solid var(--tp-rule);
    font-family: var(--font-mono, monospace);
    font-size: 0.71rem;
  }

  .tp-topic-roman {
    font-size: 0.61rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--tp-graphite);
  }

  .tp-topic-article-list {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
  }

  .tp-topic-article-link {
    display: flex;
    flex-direction: column;
    gap: 0.08rem;
    padding: 0.28rem 0.42rem;
    background-color: var(--tp-vellum);
    border: 1px solid var(--tp-rule);
    text-decoration: none;
    color: var(--tp-ink);
    font-size: 0.71rem;
    line-height: 1.25;
  }

  .tp-topic-article-link:hover {
    border-color: var(--tp-prussian);
    background-color: var(--tp-mortar);
  }

  .tp-topic-article-link[data-active-folio="true"] {
    background-color: var(--tp-verdigris);
    border-color: var(--tp-verdigris);
    color: var(--tp-vellum);
  }

  .tp-topic-article-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-family: var(--font-mono, monospace);
    font-size: 0.65rem;
  }

  .tp-topic-vol-chip {
    font-style: normal;
    font-size: 0.59rem;
    opacity: 0.8;
  }

  .tp-topic-article-title {
    font-size: 0.69rem;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .tp-archive-disclosure {
    margin: 1.75rem 0;
    border: 1px solid var(--tp-rule-strong);
    background-color: var(--tp-vellum);
  }

  .tp-archive-summary {
    list-style: none;
    cursor: pointer;
    padding: 0.75rem 1rem;
    font-family: var(--font-mono, monospace);
    font-size: 0.76rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--tp-ink);
    display: flex;
    justify-content: space-between;
    align-items: center;
  }

  .tp-archive-summary::-webkit-details-marker {
    display: none;
  }

  .tp-archive-disclosure[open] .tp-archive-summary {
    border-bottom: 1px solid var(--tp-rule);
  }

  .tp-archive-disclosure .tp-dispatch-stream {
    padding: 1rem;
    margin: 0;
  }

  .tp-vol-active-badge {
    font-family: var(--font-mono, monospace);
    font-size: 0.68rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    padding: 0.22rem 0.55rem;
    background-color: var(--tp-verdigris-soft);
    border: 1px solid var(--tp-verdigris);
    color: var(--tp-verdigris);
  }

  .tp-vol-tab-group,
  .tp-pillar-vol-filter,
  .tp-vol-stepper-links {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.32rem;
  }

  .tp-vol-filter-kicker,
  .tp-vol-step-pos,
  .tp-vol-sibling-label {
    font-family: var(--font-mono, monospace);
    font-size: 0.68rem;
    font-weight: 600;
    color: var(--tp-graphite);
  }

  .tp-vol-nav-pill,
  .tp-vol-filter-btn,
  .tp-vol-step-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 28px;
    line-height: 1;
    font-family: var(--font-mono, monospace);
    font-size: 0.68rem;
    font-weight: 600;
    padding: 0 0.55rem;
    background-color: var(--tp-stone);
    color: var(--tp-ink);
    border: 1px solid var(--tp-rule-strong);
    text-decoration: none;
    cursor: pointer;
    box-sizing: border-box;
    white-space: nowrap;
  }

  .tp-vol-step-link:hover,
  .tp-vol-nav-pill:hover {
    background-color: var(--tp-mortar);
  }

  .tp-vol-nav-pill[aria-pressed="true"],
  .tp-vol-filter-btn[aria-pressed="true"] {
    background-color: var(--tp-prussian);
    color: var(--tp-vellum);
    border-color: var(--tp-prussian);
  }

  .tp-volume-sibling-bar {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.45rem;
    padding-top: 0.42rem;
    border-top: 1px dashed var(--tp-rule);
  }
  .tp-volume-sibling-bar[hidden] {
    display: none;
  }

  .tp-vol-sibling-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.32rem;
  }

  .tp-vol-sibling-pill {
    font-family: var(--font-mono, monospace);
    font-size: 0.67rem;
    padding: 0.18rem 0.48rem;
    background-color: var(--tp-stone);
    border: 1px solid var(--tp-rule);
    color: var(--tp-ink);
    text-decoration: none;
  }

  .tp-vol-sibling-pill[data-active-folio="true"] {
    background-color: var(--tp-verdigris);
    border-color: var(--tp-verdigris);
    color: var(--tp-vellum);
    font-weight: 700;
  }

  .tp-es-dossier {
    margin: 1.15rem 0 1.4rem 0;
    border: 1.5px solid var(--tp-prussian);
    background-color: var(--tp-vellum);
  }
  .tp-es-summary {
    list-style: none;
    cursor: pointer;
    padding: 0.68rem 1rem;
    font-family: var(--font-mono, monospace);
    font-size: 0.76rem;
    color: var(--tp-prussian);
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    gap: 0.5rem;
    background-color: var(--tp-stone);
  }
  .tp-es-summary::-webkit-details-marker {
    display: none;
  }
  .tp-es-badge {
    font-size: 0.68rem;
    font-weight: 700;
    padding: 0.14rem 0.48rem;
    border: 1px solid var(--tp-prussian);
    background-color: var(--tp-vellum);
    color: var(--tp-prussian);
  }
  .tp-es-body {
    padding: 0.9rem 1.1rem;
    border-top: 1px solid var(--tp-rule);
    font-size: 0.92rem;
    line-height: 1.58;
    color: var(--tp-ink);
  }
  .tp-es-body p {
    margin: 0 0 0.65rem 0;
  }
  .tp-es-body p:last-child {
    margin-bottom: 0;
  }
  .tp-matrix-status-bar {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 0.65rem;
    margin-top: 0.55rem;
    padding: 0.42rem 0.75rem;
    background-color: var(--tp-stone);
    border: 1px solid var(--tp-rule);
    font-family: var(--font-mono, monospace);
    font-size: 0.74rem;
    color: var(--tp-prussian);
  }

  /* ---- Informatico.ai Bauhaus 2x2 Matrix [Io / ai] Square Seal & SVG Animation ---- */
  .tp-logo-draw {
    stroke-dasharray: none;
    stroke-dashoffset: 0;
  }

  .tp-logo-datum {
    fill: var(--tp-minium);
    stroke: none;
    transform-box: fill-box;
    transform-origin: center;
    transition: transform 0.25s ease;
  }

  @keyframes tpLogoDraw {
    0% {
      stroke-dasharray: 1;
      stroke-dashoffset: 1;
    }
    99% {
      stroke-dasharray: 1;
      stroke-dashoffset: 0;
    }
    100% {
      stroke-dasharray: none;
      stroke-dashoffset: 0;
    }
  }

  @keyframes tpDatumBreathe {
    0%, 100% {
      opacity: 0.86;
      transform: scale(1);
    }
    50% {
      opacity: 1;
      transform: scale(1.22);
    }
  }

  @media (prefers-reduced-motion: no-preference) {
    .tp-logo-q1 {
      stroke-dasharray: 1;
      stroke-dashoffset: 1;
      animation: tpLogoDraw 0.45s cubic-bezier(0.22, 1, 0.36, 1) 0s forwards;
    }

    .tp-logo-q2 {
      stroke-dasharray: 1;
      stroke-dashoffset: 1;
      animation: tpLogoDraw 0.45s cubic-bezier(0.22, 1, 0.36, 1) 0.14s forwards;
    }

    .tp-logo-q3 {
      stroke-dasharray: 1;
      stroke-dashoffset: 1;
      animation: tpLogoDraw 0.45s cubic-bezier(0.22, 1, 0.36, 1) 0.28s forwards;
    }

    .tp-logo-q4 {
      stroke-dasharray: 1;
      stroke-dashoffset: 1;
      animation: tpLogoDraw 0.45s cubic-bezier(0.22, 1, 0.36, 1) 0.42s forwards;
    }

    .tp-logo-datum {
      animation: tpDatumBreathe 4s ease-in-out 0.75s infinite;
    }

    .tp-brand:hover .tp-logo-datum,
    .tp-brand:focus-visible .tp-logo-datum {
      transform: rotate(45deg) scale(1.25);
    }
  }
}