/* ========================================================================
   CSS VARIABLES & RESET
   ======================================================================== */
:root {
  --bg-deep: #f6f0e2;
  --bg-primary: #ede6d0;
  --bg-card: #e4d9be;
  --bg-card-hover: #d8ccac;
  --bg-surface: #cfc4a0;
  --ink: #1e1508;
  --gold: #7a5c14;
  --gold-light: #a07828;
  --gold-dim: #b08c36;
  --gold-faint: rgba(122, 92, 20, 0.1);
  --cream: #2c2010;
  --cream-light: #1a1008;
  --text-primary: #332616;
  --text-secondary: #5a4830;
  --text-muted: #8a7860;
  --accent-blue: #2a4870;
  --accent-teal: #2a6858;
  --accent-rose: #7a3830;
  --font-display: 'Cormorant Garamond', Georgia, serif;
  --font-body: 'IBM Plex Sans', 'Helvetica Neue', sans-serif;
  --max-width: 1280px;
  --section-padding: clamp(80px, 12vh, 160px);
}

*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  scrollbar-color: var(--gold-dim) var(--bg-deep);
}

body {
  font-family: var(--font-body);
  background-color: var(--bg-deep);
  color: var(--text-primary);
  line-height: 1.7;
  font-weight: 300;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

::selection {
  background: var(--gold);
  color: var(--bg-deep);
  /* gold selection on parchment — text shows as bg-deep which is ivory */
}

/* ========================================================================
   GRAIN OVERLAY
   ======================================================================== */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.06'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 9999;
}

/* ========================================================================
   NAVBAR
   ======================================================================== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: 0 clamp(24px, 4vw, 48px);
  transition: background 0.4s ease, box-shadow 0.4s ease, padding 0.4s ease;
}

.navbar.scrolled {
  background: rgba(246, 240, 226, 0.93);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 1px 0 rgba(122, 92, 20, 0.15), 0 2px 16px rgba(30, 21, 8, 0.06);
}

.navbar-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.navbar-brand {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 500;
  color: var(--gold);
  letter-spacing: 0.02em;
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 10px;
}

.navbar-brand .brand-mark {
  width: 28px;
  height: 28px;
  flex: 0 0 auto;
  color: var(--gold);
}

.nav-links {
  display: flex;
  gap: 32px;
  list-style: none;
}

.nav-links a {
  font-size: 0.8rem;
  font-weight: 400;
  color: var(--text-secondary);
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  position: relative;
  transition: color 0.3s ease;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--gold);
  transition: width 0.3s ease;
}

.nav-links a:hover {
  color: var(--gold);
}

.nav-links a:hover::after {
  width: 100%;
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--gold);
  margin: 5px 0;
  transition: all 0.3s ease;
}

/* ========================================================================
   HERO SECTION
   ======================================================================== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-bg canvas {
  width: 100%;
  height: 100%;
  display: block;
}

.hero-radial {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 50% 45% at 50% 50%, rgba(237, 230, 208, 0.7) 0%, transparent 70%),
    radial-gradient(ellipse 80% 60% at 70% 30%, rgba(176, 140, 54, 0.05) 0%, transparent 60%);
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 900px;
  padding: 0 clamp(24px, 4vw, 48px);
}

.hero-label {
  font-family: var(--font-body);
  font-size: 0.72rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.3em;
  color: var(--gold-dim);
  margin-bottom: 32px;
  opacity: 0;
  transform: translateY(20px);
  animation: fadeUp 0.8s ease 0.3s forwards;
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(3rem, 7vw, 6.5rem);
  font-weight: 300;
  line-height: 1.05;
  color: var(--ink);
  margin-bottom: 8px;
  opacity: 0;
  transform: translateY(30px);
  animation: fadeUp 1s ease 0.5s forwards;
}

.hero-title em {
  font-style: italic;
  color: var(--gold);
}

.hero-subtitle {
  font-family: var(--font-display);
  font-size: clamp(1.1rem, 2vw, 1.5rem);
  font-weight: 300;
  font-style: italic;
  color: var(--text-secondary);
  margin-top: 24px;
  margin-bottom: 48px;
  opacity: 0;
  transform: translateY(20px);
  animation: fadeUp 0.8s ease 0.8s forwards;
}

.desktop-break {
  display: none;
}

@media (min-width: 768px) {
  .desktop-break { display: inline; }
}

.hero-cta {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-body);
  font-size: 0.78rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--gold);
  text-decoration: none;
  border: 1px solid var(--gold-dim);
  padding: 14px 36px;
  transition: all 0.4s ease;
  opacity: 0;
  transform: translateY(20px);
  animation: fadeUp 0.8s ease 1.1s forwards;
}

.hero-cta:hover {
  background: var(--gold);
  color: #f6f0e2;
  border-color: var(--gold);
}

.hero-cta svg {
  width: 14px;
  height: 14px;
  transition: transform 0.3s ease;
}

.hero-cta:hover svg {
  transform: translateY(3px);
}

.hero-scroll-line {
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 1px;
  height: 80px;
  background: linear-gradient(to bottom, transparent, var(--gold-dim));
  opacity: 0;
  animation: fadeIn 1s ease 1.5s forwards;
}

/* ========================================================================
   SECTION COMMON
   ======================================================================== */
.section {
  padding: var(--section-padding) clamp(24px, 4vw, 48px);
  position: relative;
}

.section-inner {
  max-width: var(--max-width);
  margin: 0 auto;
}

.section-label {
  font-family: var(--font-body);
  font-size: 0.68rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.3em;
  color: var(--gold-dim);
  margin-bottom: 20px;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 4.5vw, 3.8rem);
  font-weight: 300;
  line-height: 1.15;
  color: var(--ink);
  margin-bottom: 24px;
}

.section-title em {
  font-style: italic;
  color: var(--gold);
}

.section-divider {
  width: 48px;
  height: 1px;
  background: var(--gold-dim);
  margin-bottom: 40px;
}

.section-prose {
  font-size: 1.05rem;
  line-height: 1.85;
  color: var(--text-secondary);
  max-width: 680px;
}

.section-prose p+p {
  margin-top: 1.4em;
}

.section-prose strong {
  color: var(--text-primary);
  font-weight: 500;
}

/* ========================================================================
   ABOUT SECTION
   ======================================================================== */
.about {
  background: var(--bg-primary);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
  margin-top: 48px;
}

.about-quote {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 300;
  font-style: italic;
  line-height: 1.5;
  color: var(--ink);
  padding-left: 24px;
  border-left: 2px solid var(--gold-dim);
  margin-top: 16px;
}

.about-quote cite {
  display: block;
  font-size: 0.85rem;
  font-style: normal;
  color: var(--text-muted);
  margin-top: 20px;
  font-family: var(--font-body);
}

.about-stat-group {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-top: 48px;
}

.about-stat {
  padding: 24px;
  border: 1px solid rgba(122, 92, 20, 0.18);
  background: var(--bg-card);
}

.about-stat .number {
  font-family: var(--font-display);
  font-size: 2.4rem;
  font-weight: 300;
  color: var(--gold);
  line-height: 1;
  margin-bottom: 8px;
}

.about-stat .label {
  font-size: 0.78rem;
  font-weight: 400;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.about-stages-group {
  grid-template-columns: 1fr;
  gap: 18px;
  margin-top: 20px;
}

.about-stages-box {
  padding: 28px;
}

.about-stages-title {
  font-size: 0.68rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--gold-dim);
  margin-bottom: 20px;
}

.about-stages-act {
  font-size: 0.68rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--gold-dim);
  margin-bottom: 12px;
}

.about-stages-list {
  margin-left: 1.2rem;
  font-size: 0.86rem;
  line-height: 1.55;
  color: var(--text-secondary);
}

.about-stages-list li+li {
  margin-top: 6px;
}

.about-stages-list strong {
  color: var(--text-primary);
}

@media (min-width: 901px) {
  .about-stages-list {
    column-count: 2;
    column-gap: 18px;
  }

  .about-stages-list li {
    break-inside: avoid;
  }

  .about-quote {
    margin-top: clamp(36px, 3.5vw, 56px);
    margin-bottom: clamp(72px, 6vw, 108px);
  }
}

.methodology-list {
  list-style: none;
  margin-top: 32px;
}

.methodology-list li {
  padding: 16px 0;
  border-bottom: 1px solid rgba(122, 92, 20, 0.12);
  display: flex;
  gap: 16px;
  align-items: baseline;
}

.methodology-list .step-num {
  font-family: var(--font-display);
  font-size: 1.4rem;
  color: var(--gold-dim);
  font-weight: 400;
  flex-shrink: 0;
  width: 28px;
}

.methodology-list .step-text {
  font-size: 0.95rem;
  color: var(--text-secondary);
}

.methodology-list .step-text strong {
  color: var(--text-primary);
  font-weight: 500;
}

/* ========================================================================
   ONTOLOGY SECTION
   ======================================================================== */
.ontology {
  background: var(--bg-deep);
  position: relative;
}

.ontology::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--gold-dim), transparent);
}

.ontology-intro {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  margin-bottom: 72px;
}

.ontology-classes-panel {
  margin-top: 30px;
}

.ontology-iri-box {
  margin-bottom: 20px;
}

.ontology-iri-box + .ontology-iri-box {
  margin-bottom: 90px;
}

.ontology-classes-label {
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.3em;
  color: var(--gold-dim);
  margin-bottom: 24px;
}

.ontology-iri-value {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.82rem;
  color: var(--text-secondary);
  text-decoration: none;
  position: relative;
  display: inline-block;
  word-break: break-all;
}

.ontology-iri-value::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 0;
  height: 1px;
  background: currentColor;
  transition: width 0.3s ease;
}

.ontology-iri-value:hover::after,
.ontology-iri-value:focus-visible::after {
  width: 100%;
}

.ontology-classes {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2px;
}

.class-card {
  background: var(--bg-card);
  padding: 32px;
  transition: background 0.3s ease;
}

.class-card:hover {
  background: var(--bg-card-hover);
}

.class-card .class-name {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 500;
  color: var(--ink);
  margin-bottom: 12px;
}

.class-card .class-prefix {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.7rem;
  color: var(--gold-dim);
  margin-bottom: 8px;
  letter-spacing: 0.05em;
}

.class-card .class-desc {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ========================================================================
   KNOWLEDGE GRAPHS SECTION
   ======================================================================== */
.knowledge-graphs {
  background: var(--bg-primary);
}

.kg-header {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: start;
  gap: 80px;
  margin-bottom: 64px;
}

.kg-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 2px;
}

.kg-card {
  background: var(--bg-card);
  position: relative;
  overflow: hidden;
  transition: all 0.4s ease;
  cursor: pointer;
}

.kg-card:hover {
  background: var(--bg-card-hover);
}

.kg-card:focus-visible {
  outline: 2px solid var(--gold-dim);
  outline-offset: -2px;
}

.kg-card-inner {
  padding: 36px 32px;
}

.kg-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 20px;
}

.tag {
  font-size: 0.65rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  padding: 4px 15px;
  border: 1px solid;
  white-space: nowrap;
}

.tag-movie {
  color: var(--gold);
  border-color: var(--gold-dim);
}

.tag-game {
  color: #372a70;
  border-color: #372a70;
}

.tag-book {
  color: var(--accent-teal);
  border-color: rgba(42, 104, 88, 0.3);
}

.tag-play {
  color: rgba(189, 94, 16, 1);
  border-color: rgba(189, 94, 16, 1);
}

.tag-comic {
  color: #962d21;
  border-color: #962d21;
}

.tag-music {
  color: #1a1008;
  border-color: #1a1008;
}

.kg-card .work-title {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 400;
  font-style: italic;
  color: var(--ink);
  line-height: 1.25;
  margin-bottom: 6px;
}

.kg-card .work-author {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.kg-card .work-desc {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: 20px;
}

.fit-bar {
  display: flex;
  gap: 2px;
  margin-bottom: 8px;
}

.fit-bar .segment {
  height: 3px;
  flex: 1;
  position: relative;
}

.fit-bar .segment.filled.strong {
  background: var(--gold);
}

.fit-bar .segment.filled.perfect {
  background: #4d390a;
}

.fit-bar .segment.filled.moderate {
  background: var(--gold-dim);
}

.fit-bar .segment.filled.weak {
  background: #c7af77;
}

.fit-bar .segment.filled.absent {
  background: #5e450d1f;
}

.fit-bar .segment.filled.inverted {
  background: #962d21;
}

/* Divergence Icons */
.divergences-container {
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%);
  margin-bottom: 2px;
  display: flex;
  flex-direction: column-reverse; /* stack from bottom up */
  gap: 2px;
  align-items: center;
}

.div-icon {
  font-family: 'Material Symbols Outlined';
  font-size: 14px;
  line-height: 1;
  color: var(--gold-dim);
  opacity: 0.6;
  display: block;
  font-variation-settings: 'FILL' 0, 'wght' 400, 'GRAD' 0, 'opsz' 24;
  cursor: pointer;
}

.fit-bar.fit-bar-large .div-icon {
  font-size: 16px;
}

.kg-card .fit-label {
  font-size: 0.72rem;
  color: var(--text-muted);
  display: flex;
  justify-content: space-between;
}

.kg-card .meta-title {
  font-size: 0.62rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-muted);
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px solid rgba(122, 92, 20, 0.12);
}

.kg-card .meta-row {
  display: flex;
  gap: 16px;
  margin-top: 3px;
}

.kg-card .meta-item {
  font-size: 0.72rem;
  color: var(--text-muted);
}

.kg-card .meta-item span {
  color: var(--text-secondary);
  font-weight: 500;
}

body.modal-open {
  overflow: hidden;
}

.kg-modal {
  position: fixed;
  inset: 0;
  z-index: 1300;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s ease, visibility 0.25s ease;
}

.kg-modal.open {
  opacity: 1;
  visibility: visible;
}

.kg-modal-overlay {
  position: absolute;
  inset: 0;
  background: rgba(30, 21, 8, 0.45);
  backdrop-filter: blur(3px);
}

.kg-modal-dialog {
  position: relative;
  margin: 44px auto;
  width: min(980px, calc(100vw - 44px));
  max-height: calc(100vh - 88px);
  overflow-y: auto;
  background: var(--bg-deep);
  border: 1px solid rgba(122, 92, 20, 0.2);
  box-shadow: 0 24px 54px rgba(30, 21, 8, 0.24);
  padding: 36px;
}

.kg-modal-close {
  position: absolute;
  top: 14px;
  right: 14px;
  width: 24px;
  height: 24px;
  border: 0;
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 0;
}

.kg-modal-close svg {
  width: 18px;
  height: 18px;
}

.kg-modal-close:hover {
  color: var(--gold);
}

.kg-modal-kicker {
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--gold-dim);
  margin-bottom: 10px;
}

.kg-modal-title-row {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
}

.kg-modal-tags {
  display: flex;
  gap: 8px;
  align-items: center;
}

.kg-modal-repo-link {
  text-decoration: none;
  transition: transform 0.2s ease, filter 0.2s ease;
}

.kg-modal-repo-link:hover {
  transform: translateY(-2px);
  filter: brightness(1.2);
}

.kg-modal-title {
  font-family: var(--font-display);
  font-size: 2.1rem;
  font-weight: 500;
  line-height: 1.15;
  color: var(--ink);
  margin: 0;
}

.kg-modal-author {
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-top: 8px;
}

.kg-modal-summary {
  margin-top: 18px;
  font-size: 0.98rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

.kg-modal-grid {
  margin-top: 28px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.kg-modal-section {
  background: var(--bg-card);
  border: 1px solid rgba(122, 92, 20, 0.12);
  padding: 20px;
}

.kg-modal-section h4 {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--gold-dim);
  margin-bottom: 12px;
}

.kg-modal-section p {
  font-size: 0.86rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 12px;
}

.fit-bar.fit-bar-large {
  gap: 4px;
  margin-top: 56px;
  margin-bottom: 52px;
}

.fit-bar.fit-bar-large .segment {
  height: 18px;
  overflow: visible;
}

/* Quality label under each segment in fit-bar-large */
.fit-bar.fit-bar-large .segment::after {
  content: '';
  position: absolute;
  top: calc(100% + 2px);
  left: 50%;
  transform-origin: 100% 0;
  transform: translateX(-100%) rotate(-45deg);
  font-family: var(--font-body);
  font-size: 0.48rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  opacity: 0.45;
  color: var(--text-muted);
  white-space: nowrap;
  pointer-events: none;
}

.fit-bar.fit-bar-large .segment.strong::after  { content: 'Strong'; }
.fit-bar.fit-bar-large .segment.perfect::after { content: 'Perfect'; }
.fit-bar.fit-bar-large .segment.moderate::after{ content: 'Moderate'; }
.fit-bar.fit-bar-large .segment.weak::after    { content: 'Weak'; }
.fit-bar.fit-bar-large .segment.absent::after  { content: 'Absent'; }
.fit-bar.fit-bar-large .segment.inverted::after{ content: 'Inverted'; }

.fit-label.fit-label-large {
  font-size: 0.76rem;
  margin-top: 8px;
  margin-bottom: 16px;
  display: flex;
  justify-content: space-between;
}

/* ========================================================================
   STAGE DETAIL PANEL
   ======================================================================== */
.stage-detail-panel {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.3s ease;
  opacity: 0;
  margin-top: 0;
}

.stage-detail-panel.open {
  max-height: 1200px;
  opacity: 1;
  margin-top: 8px;
}

.stage-detail-inner {
  position: relative;
  background: var(--bg-card);
  border: 1px solid rgba(122, 92, 20, 0.2);
  border-left: 3px solid var(--gold-dim);
  padding: 20px 24px 20px 20px;
}

.stage-detail-close {
  position: absolute;
  top: 12px;
  right: 12px;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-muted);
  padding: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0.6;
  transition: opacity 0.2s ease, color 0.2s ease;
}

.stage-detail-close:hover {
  opacity: 1;
  color: var(--gold);
}

.stage-detail-close svg {
  width: 16px;
  height: 16px;
}

.stage-detail-kicker {
  font-family: var(--font-body);
  font-size: 0.6rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--gold-dim);
  margin-bottom: 6px;
}

.stage-detail-title {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 500;
  font-style: italic;
  color: var(--ink);
  line-height: 1.3;
  margin-bottom: 2px;
}

.stage-detail-realizes-stage {
  font-family: var(--font-body);
  font-size: 0.68rem;
  color: var(--text-muted);
  letter-spacing: 0.03em;
  margin-bottom: 8px;
}

.stage-detail-realizes-stage[hidden] {
  display: none;
}

.stage-detail-body {
  font-family: var(--font-body);
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

.stage-detail-divergences {
  background: rgba(122, 92, 20, 0.04);
  border: 1px solid rgba(122, 92, 20, 0.14);
  border-top: none;
  padding: 14px 20px 16px;
  display: grid;
  gap: 10px;
}

.stage-detail-divergences[hidden] {
  display: none;
}

.stage-divergence-item + .stage-divergence-item {
  border-top: 1px solid rgba(122, 92, 20, 0.12);
  padding-top: 10px;
}

.stage-divergence-type {
  font-family: var(--font-body);
  font-size: 0.58rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--gold-dim);
  margin-bottom: 4px;
}

.stage-divergence-title {
  font-family: var(--font-display);
  font-size: 0.9rem;
  color: var(--ink);
  line-height: 1.3;
  margin-bottom: 4px;
}

.stage-divergence-body {
  font-family: var(--font-body);
  font-size: 0.74rem;
  color: var(--text-secondary);
  line-height: 1.55;
}

/* Active segment highlight */
.fit-bar.fit-bar-large .segment.segment-active {
  outline: 2px solid var(--gold);
  outline-offset: 2px;
  z-index: 1;
}

/* ========================================================================
   CONCLUSION SECTION
   ======================================================================== */
.conclusion {
  background: var(--bg-deep);
  position: relative;
}

.conclusion::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--gold-dim), transparent);
}

.horizons-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

/* -----------------------------------------------------------------------
   Conclusion rethought layout: prose topics + sticky research card
   ----------------------------------------------------------------------- */
.conclusion-horizons {
  display: grid;
  grid-template-columns: 1fr 420px;
  gap: 48px;
  align-items: stretch;
}

.conclusion-topics {
  display: flex;
  flex-direction: column;
  gap: 40px;
}

.conclusion-topic .ontology-classes-label {
  margin-bottom: 16px;
}

.conclusion-topic-body {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.85;
}

.conclusion-topic-body strong {
  color: var(--text-primary);
  font-weight: 500;
}

.conclusion-topic-body p + p {
  margin-top: 1.2em;
}

.conclusion-side-cards {
  display: flex;
  flex-direction: column;
  gap: 24px;
  height: 100%;
}

.conclusion-side-cards .horizons-card {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.conclusion-side-cards .class-desc {
  font-size: 0.88rem;
  line-height: 1.6;
}

.card-questions-list {
  list-style: none;
  margin-top: 16px;
}

.card-questions-list li {
  padding: 12px 0;
  border-bottom: 1px solid rgba(122, 92, 20, 0.12);
  display: flex;
  gap: 12px;
  align-items: flex-start;
}

.question-content {
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex: 1;
}

.card-questions-list li:last-child {
  border-bottom: none;
}

.card-questions-list .question-icon {
  font-family: 'Material Symbols Outlined';
  font-size: 1.1rem;
  color: var(--gold-dim);
  margin-top: 3px;
  flex-shrink: 0;
  display: inline-block;
  font-variation-settings: 'FILL' 0, 'wght' 400, 'GRAD' 0, 'opsz' 24;
}

.card-questions-list .question-text {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.5;
}

.card-questions-list .question-text strong {
  color: var(--text-secondary);
  font-weight: 500;
}

.question-answer {
  margin-top: 12px;
  background: rgba(122, 92, 20, 0.04);
  border-left: 2px solid var(--gold-dim);
  padding: 10px 14px;
  border-radius: 0 4px 4px 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.answer-main {
  display: flex;
  flex-direction: column;
}

.answer-label {
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--gold-dim);
  margin-bottom: 2px;
}

.answer-value {
  font-size: 0.9rem;
  color: var(--text-primary);
  font-weight: 500;
  font-family: var(--font-display);
}

.sparql-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.75rem;
  color: var(--gold);
  text-decoration: none;
  background: rgba(122, 92, 20, 0.08);
  padding: 4px 8px;
  border-radius: 4px;
  width: fit-content;
  transition: all 0.2s ease;
}

.sparql-link:hover {
  background: rgba(122, 92, 20, 0.15);
  transform: translateX(2px);
}

.sparql-icon {
  width: 14px !important;
  height: 14px !important;
  stroke: var(--gold) !important;
  stroke-width: 2.5;
  fill: none !important;
  flex-shrink: 0;
  display: inline-block;
  vertical-align: middle;
}



.class-card {
  background: var(--bg-card);
  padding: 32px;
  transition: background 0.3s ease;
}

.class-card:hover {
  background: var(--bg-card-hover);
}

.horizons-card {
  padding: 24px;
  position: relative;
}

.horizons-card.class-card:hover {
  background: var(--bg-card);
  cursor: default;
}

.horizons-icon {
  position: absolute;
  top: 24px;
  right: 24px;
  width: 32px;
  height: 32px;
  color: var(--gold-dim);
  opacity: 0.35;
  pointer-events: none;
}

.class-card .class-name {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 500;
  color: var(--ink);
  margin-bottom: 12px;
}

.horizons-card .class-name {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 400;
  font-style: italic;
  color: var(--ink);
  line-height: 1.25;
  margin-bottom: 6px;
}

.class-card .class-desc {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.6;
}

code {
  font-family: 'IBM Plex Mono', monospace;
  color: var(--gold);
  font-size: 0.9em;
}

/* ========================================================================
   TEAM SECTION
   ======================================================================== */
.team {
  background: var(--bg-primary);
}

.team-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2px;
  margin-top: 48px;
}

.team-card {
  background: var(--bg-card);
  padding: 40px 32px;
  text-align: center;
  transition: background 0.3s ease;
  display: flex;
  flex-direction: column;
}

.team-card:hover {
  background: var(--bg-card-hover);
}

.team-avatar {
  width: 200px;
  height: 200px;
  margin: 0 auto 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  position: relative;
}

.team-avatar img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  transition: transform 0.6s ease, filter 0.4s ease;
  --base-scale: 1;
  transform: scale(var(--base-scale));
}

.team-avatar img.img-scale-up {
  --base-scale: 1.25;
}

.team-card:hover .team-avatar {
  transform: translateY(-8px);
}

.team-card:hover .team-avatar img {
  transform: scale(calc(var(--base-scale) * 1.15));
  filter: drop-shadow(0 12px 20px rgba(30, 21, 8, 0.2));
}

.team-card .name {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 500;
  color: var(--ink);
  margin-bottom: 4px;
}

.team-card .role {
  font-size: 0.78rem;
  font-weight: 400;
  color: var(--gold-dim);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 16px;
}

.team-card .bio {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 24px;
}

.team-social {
  display: flex;
  justify-content: center;
  gap: 16px;
  margin-top: auto;
}

.team-social a {
  color: var(--text-muted);
  transition: color 0.3s ease, transform 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}

.team-social a:hover {
  color: var(--gold);
  transform: translateY(-2px);
}

.team-social svg {
  width: 20px;
  height: 20px;
}

/* ========================================================================
   FOOTER
   ======================================================================== */
.footer {
  background: var(--bg-deep);
  border-top: 1px solid rgba(122, 92, 20, 0.15);
  padding: 48px clamp(24px, 4vw, 48px);
}

.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
}

.footer-brand {
  font-family: var(--font-display);
  font-size: 1.1rem;
  color: var(--gold-dim);
}

.footer-brand-row {
  display: flex;
  align-items: baseline;
  gap: 26px;
}

.footer-inline-links {
  display: flex;
  align-items: center;
  gap: 8px;
  list-style: none;
  font-size: 0.75rem;
  color: var(--text-muted);
}

.footer-inline-links li + li::before {
  content: "\00b7";
  margin-right: 8px;
  color: var(--text-muted);
}

.footer-inline-links a,
.footer-copy a {
  color: inherit;
  text-decoration: none;
  transition: color 0.3s;
}

.footer-inline-links a:hover,
.footer-copy a:hover { color: var(--gold); }

.footer-links {
  display: flex;
  gap: 24px;
  list-style: none;
}

.footer-links a {
  font-size: 0.78rem;
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.3s;
}

.footer-links a:hover {
  color: var(--gold);
}

.github-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--gold-light);
  line-height: 0;
}

.github-link svg {
  width: 32px;
  height: 32px;
  stroke: currentColor;
  display: block;
  transform: translateY(8px);
}

.footer-copy {
  font-size: 0.75rem;
  color: var(--text-muted);
  justify-self: end;
}

/* ========================================================================
   ANIMATIONS
   ======================================================================== */
@keyframes fadeUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  to {
    opacity: 1;
  }
}

.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 {
  transition-delay: 0.1s;
}

.reveal-delay-2 {
  transition-delay: 0.2s;
}

.reveal-delay-3 {
  transition-delay: 0.3s;
}

.reveal-delay-4 {
  transition-delay: 0.4s;
}

/* ========================================================================
   RESPONSIVE
   ======================================================================== */
@media (max-width: 900px) {
  .nav-links {
    display: none;
  }

  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: rgba(246, 240, 226, 0.97);
    backdrop-filter: blur(20px);
    padding: 24px clamp(24px, 4vw, 48px);
    gap: 16px;
    border-bottom: 1px solid rgba(122, 92, 20, 0.15);
  }

  .nav-toggle {
    display: block;
  }

  .about-grid,
  .ontology-intro,
  .kg-header,
  .conclusion-horizons {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .about-quote {
    margin-bottom: 40px;
  }

  .footer-inner { display: flex; flex-direction: column; gap: 16px; text-align: center; }
  .footer-brand-row { flex-direction: column; align-items: center; gap: 8px; }
  .footer-links { justify-content: center; }
  .footer-inline-links { justify-content: center; }
  .footer-copy { justify-self: auto; }

  .ontology-classes {
    grid-template-columns: 1fr;
  }

  .ontology-classes-panel {
    margin-top: 0;
  }

  .ontology-iri-box {
    margin-bottom: 16px;
  }

  .ontology-iri-box + .ontology-iri-box {
    margin-bottom: 64px;
  }

  .kg-grid {
    grid-template-columns: 1fr;
  }

  .team-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .kg-modal-dialog {
    width: min(900px, calc(100vw - 28px));
    margin: 26px auto;
    max-height: calc(100vh - 52px);
    padding: 24px;
  }

  .kg-modal-grid {
    grid-template-columns: 1fr;
  }

}

@media (max-width: 600px) {
  .about-stat-group {
    grid-template-columns: 1fr;
  }

  .team-grid {
    grid-template-columns: 1fr;
  }

  .kg-modal-dialog {
    padding: 18px;
  }

  .kg-modal-title {
    font-size: 1.7rem;
    line-height: 1.05;
  }

  .kg-modal-meta {
    grid-template-columns: 1fr;
  }

  .kg-modal-tags {
    flex-direction: column;
    align-items: flex-end;
  }

  .kg-modal-author {
    margin-top: 4px;
  }

  .kg-modal-repo-link {
    display: none;
  }

  /* Icons stay visible but taps should target the stage segment container */
  .fit-bar.fit-bar-large .div-icon {
    font-size: 12px;
    pointer-events: none !important;
  }
}

@media (max-width: 900px) {
  .horizons-grid {
    grid-template-columns: 1fr;
  }
}

/* ========================================================================
   404 PAGE
   ======================================================================== */
.page-404 {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  padding: 48px 24px;
}

.page-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.page-bg canvas {
  width: 100%;
  height: 100%;
  display: block;
}

.page-radial {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 55% 50% at 50% 50%, rgba(237, 230, 208, 0.75) 0%, transparent 70%),
    radial-gradient(ellipse 80% 60% at 30% 70%, rgba(176, 140, 54, 0.04) 0%, transparent 60%);
  z-index: 1;
}

.content-404 {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 640px;
}

.compass-container {
  width: 160px;
  height: 160px;
  margin: 0 auto 32px;
  position: relative;
  opacity: 0;
  transform: translateY(20px);
  animation: fadeUp 0.8s ease 0.35s forwards;
}

.compass-container canvas {
  width: 100%;
  height: 100%;
}

.code-404 {
  font-family: var(--font-display);
  font-size: clamp(5rem, 12vw, 9rem);
  font-weight: 300;
  line-height: 1;
  color: var(--ink);
  letter-spacing: -0.02em;
  margin-bottom: 8px;
  opacity: 0;
  transform: translateY(24px);
  animation: fadeUp 0.9s ease 0.5s forwards;
}

.code-404 span {
  color: var(--gold);
  font-style: italic;
}

.title-404 {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3.5vw, 2.4rem);
  font-weight: 300;
  font-style: italic;
  color: var(--gold);
  margin-bottom: 22px;
  opacity: 0;
  transform: translateY(20px);
  animation: fadeUp 0.8s ease 0.65s forwards;
}

.divider-404 {
  width: 48px;
  height: 1px;
  background: var(--gold-dim);
  margin: 0 auto 36px;
  opacity: 0;
  animation: fadeIn 0.6s ease 0.8s forwards;
}

.desc-404 {
  font-family: var(--font-display);
  font-size: clamp(1rem, 1.8vw, 1.2rem);
  font-weight: 300;
  font-style: italic;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 36px;
  opacity: 0;
  transform: translateY(16px);
  animation: fadeUp 0.7s ease 0.85s forwards;
}

.cta-404 {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-body);
  font-size: 0.78rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--gold);
  text-decoration: none;
  border: 1px solid var(--gold-dim);
  padding: 14px 36px;
  transition: all 0.4s ease;
  opacity: 0;
  transform: translateY(16px);
  animation: fadeUp 0.7s ease 1s forwards;
}

.cta-404:hover {
  background: var(--gold);
  color: var(--bg-deep);
  border-color: var(--gold);
}

.cta-404 svg {
  width: 14px;
  height: 14px;
  transition: transform 0.3s ease;
}

.cta-404:hover svg {
  transform: translateX(-3px);
}

@media (max-width: 600px) {
  .compass-container {
    width: 120px;
    height: 120px;
    margin-bottom: 32px;
  }
}

.kg-modal-section-full {
  grid-column: 1 / -1;
}