:root {
  color-scheme: light;
  /* MD3 semantic tokens */
  --md-sys-color-surface: #FAF7F2;
  --md-sys-color-surface-container: #FFFFFF;
  --md-sys-color-surface-container-highest: #F0EBE3;
  --md-sys-color-on-surface: #2C2825;
  --md-sys-color-on-surface-variant: #6B6560;
  --md-sys-color-outline-variant: #E0DAD2;
  --md-sys-color-primary: #B85C38;
  --md-sys-color-primary-container: #E8D5C4;
  --md-sys-color-on-primary-container: #8B4228;

  --bg: var(--md-sys-color-surface);
  --bg-card: var(--md-sys-color-surface-container);
  --bg-accent: var(--md-sys-color-surface-container-highest);
  --text: var(--md-sys-color-on-surface);
  --text-secondary: var(--md-sys-color-on-surface-variant);
  --text-tertiary: #9A9490;
  --accent: var(--md-sys-color-primary);
  --accent-light: var(--md-sys-color-primary-container);
  --accent-dark: var(--md-sys-color-on-primary-container);
  --critical-highlight: #C94F2D;
  --blue: #3D6B8E;
  --blue-light: #D4E3ED;
  --green: #4A7C59;
  --green-light: #D8E8DC;
  --red: #A63D40;
  --red-light: #EDD4D5;
  --yellow: #A4843A;
  --yellow-light: #F0E6CC;
  --border: var(--md-sys-color-outline-variant);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --elev-1: 0 1px 2px rgba(0, 0, 0, 0.05);
  --elev-2: 0 3px 10px rgba(0, 0, 0, 0.08);
  --serif: 'Source Serif 4', Georgia, serif;
  --sans: 'IBM Plex Sans', -apple-system, sans-serif;
  --mono: 'IBM Plex Mono', monospace;
}

[data-theme="dark"] {
  color-scheme: dark;
  --md-sys-color-surface: #15120F;
  --md-sys-color-surface-container: #1E1A16;
  --md-sys-color-surface-container-highest: #29231D;
  --md-sys-color-on-surface: #F2EBE4;
  --md-sys-color-on-surface-variant: #C8BEB5;
  --md-sys-color-outline-variant: #3A332D;
  --md-sys-color-primary: #E29D78;
  --md-sys-color-primary-container: #5C3423;
  --md-sys-color-on-primary-container: #FFDCCB;
  --critical-highlight: #E47A56;
  --text-tertiary: #A69B91;
  --blue: #8AB4D6;
  --blue-light: #243743;
  --green: #8FC79F;
  --green-light: #23362A;
  --red: #E58A8B;
  --red-light: #422629;
  --yellow: #D3BC81;
  --yellow-light: #3D3521;
  --elev-1: 0 1px 2px rgba(0, 0, 0, 0.35);
  --elev-2: 0 4px 14px rgba(0, 0, 0, 0.5);
}

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

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

::selection { background: var(--accent-light); color: var(--accent-dark); }

/* HEADER */
.site-header {
  padding: 2rem 2rem 0;
  max-width: 1280px;
  margin: 0 auto;
}
.header-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border);
}
.header-brand {
  font-family: var(--mono);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-secondary);
}
.header-date {
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--text-tertiary);
}
.theme-toggle {
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text);
  padding: 0.4rem 0.65rem;
  border-radius: var(--radius-sm);
  font-family: var(--mono);
  font-size: 0.72rem;
  cursor: pointer;
  transition: background 0.2s, border-color 0.2s;
}
.theme-toggle:hover {
  background: var(--bg-accent);
  border-color: color-mix(in srgb, var(--accent) 35%, var(--border) 65%);
}
.theme-toggle__icon { line-height: 1; }
.hero {
  padding: 3.5rem 0 2.5rem;
  max-width: 780px;
}
.hero h1 {
  font-family: var(--serif);
  font-size: clamp(2.2rem, 5vw, 3.2rem);
  font-weight: 700;
  line-height: 1.15;
  color: var(--text);
  margin-bottom: 1rem;
}
.hero h1 span { color: var(--accent); }
.hero .dek {
  font-family: var(--serif);
  font-size: 1.2rem;
  font-weight: 300;
  line-height: 1.55;
  color: var(--text-secondary);
  max-width: 640px;
}
.hero .credit {
  margin-top: 1.25rem;
  font-size: 0.8rem;
  color: var(--text-tertiary);
}
.hero .credit a { color: var(--blue); text-decoration: none; }
.hero .credit a:hover { text-decoration: underline; }

/* NAV */
.nav-strip {
  position: sticky;
  top: 0;
  z-index: 100;
  background: color-mix(in srgb, var(--bg) 90%, white 10%);
  border-bottom: 1px solid var(--border);
  padding: 0 2rem;
  backdrop-filter: blur(8px);
}
.nav-inner {
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  gap: 0.25rem;
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
  padding: 0.6rem 0;
}
.nav-inner::-webkit-scrollbar { display: none; }
.nav-inner a {
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-secondary);
  text-decoration: none;
  padding: 0.4rem 0.75rem;
  border-radius: 4px;
  white-space: nowrap;
  transition: all 0.2s;
}
.nav-inner a:hover { background: var(--bg-accent); color: var(--text); }

/* MAIN */
main {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 2rem 4rem;
}

section { padding: 3rem 0; }
section + section { border-top: 1px solid var(--border); }

.section-label {
  font-family: var(--mono);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.5rem;
}
.section-title {
  font-family: var(--serif);
  font-size: 1.65rem;
  font-weight: 600;
  line-height: 1.25;
  margin-bottom: 0.6rem;
}
.section-desc {
  color: var(--text-secondary);
  max-width: 620px;
  margin-bottom: 2rem;
  font-size: 0.95rem;
}

/* CARDS */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  box-shadow: var(--elev-1);
  transition: box-shadow 0.25s, border-color 0.2s;
}
.card:hover { box-shadow: var(--elev-2); border-color: color-mix(in srgb, var(--accent) 28%, var(--border) 72%); }

/* TRIANGLE */
.triangle-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.25rem;
  margin-bottom: 1.5rem;
}
.person-card { position: relative; overflow: hidden; }
.person-card .role-tag {
  font-family: var(--mono);
  font-size: 0.65rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.2rem 0.6rem;
  border-radius: 3px;
  display: inline-block;
  margin-bottom: 0.75rem;
}
.role-inventor .role-tag { background: var(--blue-light); color: var(--blue); }
.role-qualifier .role-tag { background: var(--green-light); color: var(--green); }
.role-funder .role-tag { background: var(--yellow-light); color: var(--yellow); }
.person-card h3 {
  font-family: var(--serif);
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 0.2rem;
}
.person-card .person-title {
  font-size: 0.82rem;
  color: var(--text-secondary);
  margin-bottom: 0.75rem;
}
.person-card .person-body {
  font-size: 0.88rem;
  color: var(--text);
  line-height: 1.6;
}
.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-family: var(--mono);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  padding: 0.25rem 0.65rem;
  border-radius: 3px;
  margin-top: 0.85rem;
}
.status-deceased { background: var(--bg-accent); color: var(--text-secondary); }
.status-missing { background: var(--red-light); color: var(--red); }
.status-dot {
  width: 6px; height: 6px; border-radius: 50%;
  display: inline-block;
}
.status-missing .status-dot { background: var(--red); animation: pulse 2s infinite; }
.status-deceased .status-dot { background: var(--text-tertiary); }

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

/* WHAT IS MONDALOY */
.explainer-box {
  background: var(--bg-accent);
  border-radius: 8px;
  padding: 2rem;
  max-width: 780px;
  margin-bottom: 2rem;
}
.explainer-box h3 {
  font-family: var(--serif);
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
}
.explainer-box p {
  font-size: 0.92rem;
  line-height: 1.7;
  color: var(--text);
  margin-bottom: 0.75rem;
}
.explainer-box p:last-child { margin-bottom: 0; }
.explainer-box--critical {
  background: color-mix(in srgb, var(--critical-highlight) 12%, var(--bg-card) 88%);
  border-left: 4px solid var(--critical-highlight);
  box-shadow: inset 1px 0 0 color-mix(in srgb, var(--critical-highlight) 40%, transparent);
}

/* TIMELINE */
.timeline {
  position: relative;
  padding-left: 2.5rem;
  max-width: 780px;
}
.timeline::before {
  content: '';
  position: absolute;
  left: 7px;
  top: 6px;
  bottom: 6px;
  width: 2px;
  background: var(--border);
}
.tl-item {
  position: relative;
  padding-bottom: 1.75rem;
}
.tl-item:last-child { padding-bottom: 0; }
.tl-dot {
  position: absolute;
  left: -2.5rem;
  top: 4px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  border: 2px solid var(--border);
  background: var(--bg);
}
.tl-item.tl-major .tl-dot { border-color: var(--accent); background: var(--accent); }
.tl-item.tl-missing .tl-dot { border-color: var(--red); background: var(--red); }
.tl-item.tl-corporate .tl-dot { border-color: var(--blue); background: var(--blue-light); }
.tl-date {
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--text-tertiary);
  letter-spacing: 0.03em;
  margin-bottom: 0.15rem;
}
.tl-title {
  font-weight: 600;
  font-size: 0.92rem;
  margin-bottom: 0.2rem;
}
.tl-body {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* CLUSTER TABLE */
.cluster-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}
.cluster-table th {
  font-family: var(--mono);
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-tertiary);
  text-align: left;
  padding: 0.6rem 0.75rem;
  border-bottom: 2px solid var(--border);
}
.cluster-table td {
  padding: 0.7rem 0.75rem;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}
.cluster-table tr:last-child td { border-bottom: none; }
.cluster-table .name-cell { font-weight: 600; }
.mo-tag {
  display: inline-block;
  font-family: var(--mono);
  font-size: 0.65rem;
  padding: 0.1rem 0.4rem;
  border-radius: 3px;
  background: var(--bg-accent);
  color: var(--text-secondary);
  margin: 0.1rem 0.15rem 0.1rem 0;
}
.mo-tag.match { background: var(--red-light); color: var(--red); }

/* STATS */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.25rem;
  margin-bottom: 2rem;
}
.stat-card {
  text-align: center;
  padding: 1.75rem 1rem;
}
.stat-number {
  font-family: var(--serif);
  font-size: 2.8rem;
  font-weight: 700;
  line-height: 1;
  margin-bottom: 0.3rem;
}
.stat-number.stat-red { color: var(--red); }
.stat-number.stat-accent { color: var(--accent); }
.stat-number.stat-blue { color: var(--blue); }
.stat-label {
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.4;
}
.stat-note {
  font-family: var(--mono);
  font-size: 0.68rem;
  color: var(--text-tertiary);
  margin-top: 0.4rem;
}

/* CORPORATE CHAIN */
.chain {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}
.chain-node {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.5rem 0.85rem;
  font-size: 0.82rem;
  font-weight: 500;
}
.chain-node .chain-year {
  font-family: var(--mono);
  font-size: 0.65rem;
  color: var(--text-tertiary);
  display: block;
}
.chain-arrow { color: var(--text-tertiary); font-size: 1rem; }
.chain-node.chain-current { border-color: var(--accent); background: color-mix(in srgb, var(--accent) 10%, var(--bg-card) 90%); }

/* QUESTIONS */
.questions-list {
  max-width: 780px;
}
.q-item {
  padding: 1.25rem 0;
  border-bottom: 1px solid var(--border);
}
.q-item:last-child { border-bottom: none; }
.q-num {
  font-family: var(--mono);
  font-size: 0.68rem;
  font-weight: 500;
  color: var(--accent);
  letter-spacing: 0.04em;
  margin-bottom: 0.25rem;
}
.q-text {
  font-family: var(--serif);
  font-size: 1.05rem;
  font-weight: 400;
  line-height: 1.5;
  margin-bottom: 0.35rem;
}
.q-context {
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.55;
}

/* EVIDENCE TAGS */
.ev-tag {
  display: inline-block;
  font-family: var(--mono);
  font-size: 0.62rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 0.15rem 0.45rem;
  border-radius: 2px;
  margin-right: 0.3rem;
  vertical-align: middle;
}
.ev-documented { background: var(--green-light); color: var(--green); }
.ev-claimed { background: var(--yellow-light); color: var(--yellow); }
.ev-inferred { background: var(--blue-light); color: var(--blue); }
.ev-disputed { background: var(--red-light); color: var(--red); }

/* DELETION TRACKER */
.deletion-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1rem;
}
.del-card {
  border-left: 3px solid var(--red);
}
.del-card .del-platform {
  font-family: var(--mono);
  font-size: 0.68rem;
  font-weight: 500;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 0.4rem;
}
.del-card .del-desc {
  font-size: 0.85rem;
  line-height: 1.55;
}
.del-card .del-id {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--text-tertiary);
  margin-top: 0.5rem;
}

/* METHODOLOGY */
.method-box {
  background: var(--bg-accent);
  border-radius: 8px;
  padding: 1.75rem;
  max-width: 780px;
}
.method-box h4 {
  font-family: var(--sans);
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}
.method-box p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: 0.6rem;
}

/* FOOTER */
.site-footer {
  max-width: 1280px;
  margin: 0 auto;
  padding: 2.5rem 2rem;
  border-top: 1px solid var(--border);
  font-size: 0.8rem;
  color: var(--text-tertiary);
  line-height: 1.7;
}
.site-footer a { color: var(--blue); text-decoration: none; }

/* RESPONSIVE */
@media (max-width: 768px) {
  .site-header, main, .site-footer, .nav-strip { padding-left: 1.25rem; padding-right: 1.25rem; }
  .header-bar { flex-wrap: wrap; gap: 0.6rem; }
  .theme-toggle { margin-left: 0; }
  .triangle-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .chain { flex-direction: column; align-items: flex-start; }
  .chain-arrow { transform: rotate(90deg); }
  .cluster-table { display: block; overflow-x: auto; }
  section { padding: 2rem 0; }
}

/* SUBTLE ANIMATION */
.fade-up {
  opacity: 0;
  transform: translateY(12px);
  animation: fadeUp 0.5s ease forwards;
}
@keyframes fadeUp {
  to { opacity: 1; transform: translateY(0); }
}
.fade-up:nth-child(2) { animation-delay: 0.08s; }
.fade-up:nth-child(3) { animation-delay: 0.16s; }


.skip-link {
  position: absolute;
  left: 1rem;
  top: -100%;
  background: var(--accent);
  color: #fff;
  padding: 0.55rem 0.75rem;
  border-radius: var(--radius-sm);
  text-decoration: none;
  z-index: 999;
}

.skip-link:focus-visible {
  top: 1rem;
}

a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 4px;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}