/* Generation 0016 — The Argon Chamber (Codex Purpureus & Inert Plasma) */

:root {
  --vellum: #0b0e17;
  --vellum-warm: #121726;
  --ink: #e8ecf4;
  --ink-soft: #c5cee0;
  --ink-faded: #8c98b4;
  --rule: rgba(168, 185, 225, 0.2);
  --vermillion: #f06284;
  --gold-leaf: #f5b82e;
  --argon-cyan: #5ce1e6;
  --argon-glow: rgba(92, 225, 230, 0.14);
  --panel-bg: rgba(20, 26, 43, 0.85);
  --panel-elevated: rgba(26, 34, 56, 0.92);
  --font-serif: Charter, 'Bitstream Charter', 'Sitka Text', Cambria, Georgia, serif;
  --font-sans: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  color: var(--ink);
  font-family: var(--font-serif);
  line-height: 1.72;
  background-color: var(--vellum);
  background-image:
    radial-gradient(circle at 18% 8%, rgba(92, 225, 230, 0.08) 0%, transparent 42%),
    radial-gradient(circle at 84% 16%, rgba(240, 98, 132, 0.08) 0%, transparent 45%),
    linear-gradient(180deg, var(--vellum) 0%, var(--vellum-warm) 55%, #080a11 100%);
}

.wrap {
  max-width: 1040px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

a {
  color: var(--argon-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(92, 225, 230, 0.35);
  transition: color 0.15s ease, border-color 0.15s ease;
}

a:hover {
  color: var(--gold-leaf);
  border-bottom-color: var(--gold-leaf);
}

h1, h2, h3 {
  font-family: var(--font-serif);
  color: var(--ink);
  line-height: 1.24;
  font-weight: 600;
  letter-spacing: -0.01em;
}

code {
  font-family: ui-monospace, 'Cascadia Code', 'Source Code Pro', Menlo, Consolas, monospace;
  font-size: 0.86em;
  color: var(--argon-cyan);
  background: rgba(92, 225, 230, 0.1);
  padding: 0.12rem 0.38rem;
  border-radius: 3px;
}

/* Header & Navigation */
.site-header {
  padding: 1.1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--rule);
  background: rgba(11, 14, 23, 0.9);
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 0.98rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink);
  border-bottom: none;
}

.brand:hover {
  color: var(--argon-cyan);
  border-bottom: none;
}

.brand img {
  width: 34px;
  height: 34px;
  filter: invert(0.92) hue-rotate(175deg) brightness(1.1);
}

.site-nav {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.site-nav a {
  font-family: var(--font-sans);
  font-size: 0.74rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-faded);
  border-bottom: 2px solid transparent;
  padding-bottom: 0.2rem;
}

.site-nav a:hover {
  color: var(--ink);
  border-bottom-color: var(--gold-leaf);
}

.site-nav a[aria-current="page"] {
  color: var(--vermillion);
  border-bottom: 2px solid var(--vermillion);
}

/* Hero Section */
.page-hero {
  padding: 3.5rem 1.5rem 2rem;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 260px;
  gap: 2.5rem;
  align-items: center;
}

.rubric {
  display: inline-block;
  font-family: var(--font-sans);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--vermillion);
  margin: 0 0 0.75rem;
}

.page-title {
  font-size: clamp(2rem, 4.6vw, 3.15rem);
  margin: 0 0 1.1rem;
  max-width: 19ch;
  color: var(--ink);
}

.page-summary {
  font-size: 1.06rem;
  color: var(--ink-soft);
  max-width: 44rem;
  margin: 0 0 1rem;
}

/* Inline SVG Ornamentation */
.hero-seal {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 1.25rem;
  border: 1px solid var(--rule);
  background: var(--panel-bg);
}

.chamber-svg {
  width: 100%;
  max-width: 210px;
  height: auto;
}

.svg-ring-outer {
  fill: none;
  stroke: var(--rule);
  stroke-width: 1.5;
  stroke-dasharray: 4 4;
}

.svg-ring-mid {
  fill: none;
  stroke: var(--argon-cyan);
  stroke-width: 1.2;
  opacity: 0.55;
}

.svg-octagon {
  fill: rgba(92, 225, 230, 0.06);
  stroke: var(--gold-leaf);
  stroke-width: 1.5;
}

.svg-ring-inner {
  fill: rgba(240, 98, 132, 0.08);
  stroke: var(--vermillion);
  stroke-width: 1.4;
}

.svg-axis {
  stroke: var(--rule);
  stroke-width: 1;
}

.svg-core {
  fill: var(--gold-leaf);
}

.svg-label {
  font-family: var(--font-sans);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.14em;
  fill: var(--ink);
}

.chamber-caption {
  margin: 0.75rem 0 0;
  font-family: var(--font-sans);
  font-size: 0.7rem;
  line-height: 1.45;
  color: var(--ink-faded);
  text-align: center;
}

.ornament-divider {
  margin: 1rem 0 1.75rem;
  display: flex;
  justify-content: center;
}

.ornament-divider svg {
  width: 100%;
  max-width: 460px;
  height: 24px;
}

/* Folio Frames & Chapters */
.folio-frame {
  margin: 1.75rem 0 3.25rem;
  padding: 2.25rem;
  border: 1px solid var(--rule);
  background: var(--panel-bg);
  box-shadow: 0 14px 36px rgba(0, 0, 0, 0.42);
  position: relative;
}

.folio-frame::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--argon-cyan), var(--vermillion), var(--gold-leaf));
}

.chapter-folio {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  margin: 0 0 1.5rem;
  padding-bottom: 0.85rem;
  border-bottom: 1px solid var(--rule);
}

.chapter-folio .folio-num {
  font-family: var(--font-sans);
  font-size: 1.25rem;
  color: var(--gold-leaf);
  font-weight: 700;
  letter-spacing: 0.06em;
  min-width: 2.8rem;
}

.chapter-folio .folio-title {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--ink);
}

.chapter-folio .folio-sub {
  margin-left: auto;
  font-family: var(--font-sans);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-faded);
}

.opening-verse {
  padding: 1rem 1.25rem;
  border-left: 3px solid var(--gold-leaf);
  background: rgba(245, 184, 46, 0.06);
  font-style: italic;
  color: var(--ink-soft);
  margin: 1.25rem 0 1.75rem;
}

/* Epoch Matrix (Generation 0016 layout) */
.epoch-matrix {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.35rem;
  margin-top: 1.5rem;
}

.epoch-card {
  padding: 1.4rem 1.5rem;
  border: 1px solid var(--rule);
  background: var(--panel-elevated);
  display: flex;
  flex-direction: column;
}

.epoch-card-wide {
  grid-column: 1 / -1;
  border-color: rgba(92, 225, 230, 0.35);
}

.epoch-head {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
  padding-bottom: 0.55rem;
  border-bottom: 1px solid var(--rule);
  flex-wrap: wrap;
}

.epoch-num {
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--gold-leaf);
}

.epoch-title {
  font-size: 1.08rem;
  margin: 0;
  color: var(--ink);
}

.epoch-tag {
  margin-left: auto;
  font-family: var(--font-sans);
  font-size: 0.65rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--argon-cyan);
}

.epoch-card p {
  margin: 0 0 0.9rem;
  color: var(--ink-soft);
  font-size: 0.96rem;
}

.epoch-gloss {
  margin-top: auto;
  padding-top: 0.65rem;
  border-top: 1px dashed var(--rule);
  font-size: 0.88rem;
  color: var(--ink-faded);
}

/* Thesis Duo */
.thesis-duo {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
  margin: 1.5rem 0;
}

.thesis-column {
  padding: 1.5rem;
  border: 1px solid var(--rule);
  background: var(--panel-elevated);
}

.thesis-column h2 {
  font-size: 1.25rem;
  margin: 0 0 1rem;
  color: var(--ink);
}

.thesis-column p {
  margin: 0 0 1rem;
  color: var(--ink-soft);
  font-size: 0.96rem;
}

.chamber-axiom {
  margin-top: 1.5rem;
}

/* Chapter Entries & Legacy Support */
.chapter-entries {
  list-style: none;
  padding: 0;
  margin: 1.25rem 0 2rem;
}

.chapter-entries li {
  display: grid;
  grid-template-columns: 3.2rem 190px 1fr;
  gap: 1rem;
  padding: 0.95rem 0;
  border-top: 1px solid var(--rule);
  align-items: baseline;
}

.chapter-entries li:first-child {
  border-top: none;
}

.entry-roman {
  font-family: var(--font-sans);
  font-size: 0.95rem;
  color: var(--gold-leaf);
  font-weight: 700;
  text-align: center;
}

.entry-name {
  font-weight: 600;
  color: var(--ink);
}

.entry-gloss {
  font-size: 0.94rem;
  color: var(--ink-soft);
}

/* Legacy manuscript-row & marginalia classes for archive/other pages */
.manuscript-row {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 2rem;
  margin-bottom: 2rem;
}

.marginalia-col {
  padding-top: 0.35rem;
  border-right: 1px solid var(--rule);
  padding-right: 1.25rem;
}

.marginal-note {
  font-size: 0.8rem;
  font-style: italic;
  color: var(--ink-faded);
  line-height: 1.55;
  margin-bottom: 1rem;
}

.marginal-note .note-tag {
  display: block;
  font-family: var(--font-sans);
  font-size: 0.64rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--vermillion);
  font-style: normal;
  margin-bottom: 0.25rem;
}

.text-col p {
  margin: 0 0 1.1rem;
  color: var(--ink-soft);
}

.illuminated-cap::first-letter {
  float: left;
  font-size: 3.5rem;
  line-height: 0.85;
  padding: 0.08rem 0.5rem 0 0;
  color: var(--gold-leaf);
  font-weight: 700;
}

.folio-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 1.35rem;
  margin-top: 2rem;
  padding-top: 1rem;
  border-top: 1px dashed var(--rule);
  font-family: var(--font-sans);
  font-size: 0.74rem;
  color: var(--ink-faded);
}

.folio-legend span::before {
  content: "◆ ";
  color: var(--gold-leaf);
}

/* Panels & Prose */
.panel-duo {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  margin: 2rem 0 3.25rem;
}

.folio-panel {
  padding: 1.5rem 1.65rem;
  border: 1px solid var(--rule);
  background: var(--panel-bg);
  border-left: 3px solid var(--vermillion);
}

.folio-panel h2 {
  font-size: 1.12rem;
  margin: 0 0 0.75rem;
}

.folio-panel .excerpt {
  font-style: italic;
  color: var(--ink-soft);
  padding: 0.75rem 0;
  margin: 0.5rem 0;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
}

.prose {
  margin-bottom: 4rem;
}

.prose h2 {
  font-size: 1.4rem;
  margin: 2.25rem 0 0.85rem;
  padding-bottom: 0.4rem;
  border-bottom: 1px solid var(--rule);
  color: var(--ink);
}

.prose p {
  margin-bottom: 1.15rem;
  color: var(--ink-soft);
}

.prose p strong {
  color: var(--ink);
}

blockquote {
  margin: 1.75rem 0;
  padding: 1.1rem 1.4rem;
  border-left: 3px solid var(--vermillion);
  background: rgba(240, 98, 132, 0.09);
  font-style: italic;
  color: var(--ink);
}

/* Method Folios */
.method-folios {
  counter-reset: folio;
  list-style: none;
  padding: 0;
  margin: 2rem 0 3rem;
}

.method-folios li {
  counter-increment: folio;
  padding: 1.2rem 1.35rem 1.2rem 4.2rem;
  border: 1px solid var(--rule);
  margin-bottom: 0.65rem;
  position: relative;
  background: var(--panel-bg);
}

.method-folios li::before {
  content: "Fol. " counter(folio, decimal-leading-zero);
  position: absolute;
  left: 1rem;
  top: 1.2rem;
  font-family: var(--font-sans);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gold-leaf);
  font-weight: 700;
}

.method-folios h2 {
  font-size: 1.08rem;
  margin: 0 0 0.4rem;
  border: none;
  padding: 0;
}

.method-folios p {
  margin: 0;
  color: var(--ink-soft);
}

/* Archive List */
.archive-list {
  list-style: none;
  padding: 0;
  margin: 2rem 0 3rem;
}

.archive-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 1.2rem 1.35rem;
  border: 1px solid var(--rule);
  margin-bottom: 0.6rem;
  background: var(--panel-bg);
}

.archive-info h3 {
  margin: 0 0 0.2rem;
  font-size: 1.04rem;
}

.archive-meta {
  font-family: var(--font-sans);
  font-size: 0.76rem;
  color: var(--ink-faded);
}

/* Fact Grid & Status Badges */
.fact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(195px, 1fr));
  gap: 0.9rem;
  margin: 1.25rem 0 1.75rem;
}

.fact {
  padding: 0.95rem;
  border: 1px solid var(--rule);
  background: var(--panel-elevated);
  font-size: 0.9rem;
  color: var(--ink-soft);
  overflow-wrap: anywhere;
}

.fact b {
  display: block;
  font-family: var(--font-sans);
  font-size: 0.66rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gold-leaf);
  margin-bottom: 0.35rem;
}

.status {
  display: inline-flex;
  padding: 0.32rem 0.68rem;
  border: 1px solid var(--rule);
  font-family: var(--font-sans);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

.status.live {
  border-color: var(--gold-leaf);
  color: var(--gold-leaf);
  background: rgba(245, 184, 46, 0.08);
}

.status.pending {
  border-color: var(--vermillion);
  color: var(--vermillion);
  background: rgba(240, 98, 132, 0.1);
}

.action-row {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 1.25rem;
}

.button {
  display: inline-flex;
  align-items: center;
  padding: 0.55rem 1rem;
  border: 1px solid var(--argon-cyan);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 0.82rem;
  font-weight: 600;
  background: var(--argon-glow);
  border-bottom: 1px solid var(--argon-cyan);
}

.button:hover {
  background: rgba(92, 225, 230, 0.24);
  color: var(--ink);
  border-color: var(--gold-leaf);
}

/* Transcript Classes (Genesis & Archive compatibility) */
.transcript .speech {
  margin-bottom: 1.25rem;
  padding: 0.95rem 1.2rem;
  border-left: 3px solid var(--rule);
  background: var(--panel-bg);
}

.transcript .speech.human {
  border-left-color: var(--vermillion);
}

.transcript .speech.ai {
  border-left-color: var(--gold-leaf);
}

.speaker {
  font-family: var(--font-sans);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-faded);
  margin: 0 0 0.4rem;
}

/* Footer & Accessibility */
.site-footer {
  margin-top: auto;
  padding: 2.25rem 1.5rem;
  border-top: 1px solid var(--rule);
  color: var(--ink-faded);
  font-family: var(--font-sans);
  font-size: 0.75rem;
  background: rgba(8, 10, 17, 0.94);
}

.footer-inner {
  max-width: 1040px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.footer-inner a {
  border-bottom: none;
}

.skip-link {
  position: absolute;
  top: -100px;
  left: 0;
  background: var(--vermillion);
  color: #0b0e17;
  padding: 0.65rem 1rem;
  z-index: 100;
  font-family: var(--font-sans);
  font-weight: 700;
  border-bottom: none;
}

.skip-link:focus {
  top: 0;
}

/* Responsive Breakpoints (including 390px phone width) */
@media (max-width: 820px) {
  .hero-grid {
    grid-template-columns: 1fr;
  }
  .hero-seal {
    max-width: 280px;
    margin: 0 auto;
  }
  .epoch-matrix,
  .thesis-duo {
    grid-template-columns: 1fr;
  }
  .manuscript-row {
    grid-template-columns: 1fr;
  }
  .marginalia-col {
    border-right: none;
    border-bottom: 1px solid var(--rule);
    padding-right: 0;
    padding-bottom: 1rem;
  }
}

@media (max-width: 640px) {
  .wrap {
    padding: 0 1rem;
  }
  .site-header {
    flex-direction: column;
    gap: 0.85rem;
    padding: 1rem;
    text-align: center;
  }
  .site-nav {
    justify-content: center;
    gap: 1rem;
  }
  .folio-frame {
    padding: 1.35rem 1.1rem;
  }
  .chapter-folio {
    flex-wrap: wrap;
    gap: 0.5rem;
  }
  .chapter-folio .folio-sub {
    margin-left: 0;
    width: 100%;
  }
  .chapter-entries li {
    grid-template-columns: 2.4rem 1fr;
    gap: 0.5rem;
  }
  .entry-name {
    grid-column: 2;
  }
  .entry-gloss {
    grid-column: 1 / -1;
  }
  .archive-item {
    flex-direction: column;
    align-items: flex-start;
  }
}