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

/* ── DESIGN TOKENS ── */
:root {
  --bg:             #1e2030;
  --bg-surface:     #252840;
  --bg-card:        #252840;
  --bg-card-hover:  #2e3150;
  --border:         #2e3150;
  --border-med:     rgba(46,49,80,0.8);
  --border-accent:  rgba(45,212,191,0.3);
  --text-primary:   #e2e8f0;
  --text-secondary: #94a3b8;
  --text-tertiary:  #64748b;
  --accent:         #2dd4bf;
  --accent-bright:  #2dd4bf;
  --accent-dim:     rgba(45,212,191,0.12);
  --mono-green:     #86efac;
  --mono-amber:     #fcd34d;
  --mono-blue:      #38bdf8;
  --mono-red:       #f87171;
  --mono-purple:    #c4b5fd;
  --font-ui:   'Inter', sans-serif;
  --font-mono: 'PT Mono', monospace;
  --sans:  'Inter', sans-serif;
  --mono:  'PT Mono', monospace;
  --serif: 'Inter', sans-serif;
  --grid-size: 72px;
}

/* ── BASE ── */
html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text-primary);
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: var(--grid-size) var(--grid-size);
  pointer-events: none;
  z-index: 0;
  opacity: 0.35;
}

.page-wrap { position: relative; z-index: 1; }

/* ── NAVIGATION ── */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(30,32,48,0.92);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  height: 54px;
  display: flex;
  align-items: center;
  padding: 0 48px;
}

.nav-inner {
  max-width: 1280px;
  width: 100%;
  margin: 0;
  display: flex;
  align-items: center;
  justify-content: flex-start;
}

.hamburger {
  background: none;
  border: none;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  margin-right: auto; 
  gap: 5px;
  padding: 8px;
}
.hamburger span {
  display: block;
  width: 22px;
  height: 1px;
  background: var(--text-secondary);
  transition: background 0.2s;
}
.hamburger:hover span { background: var(--text-primary); }

/* ── SLIDE MENU ── */
.menu-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  backdrop-filter: blur(4px);
  z-index: 200;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}
.menu-backdrop.open { opacity: 1; pointer-events: all; }

.menu-panel {
  position: fixed;
  top: 0;
  left: 0;
  width: 320px;
  max-width: 100vw;
  height: 100vh;
  height: 100dvh;
  background: var(--bg-surface);
  border-right: 1px solid var(--border-med);
  z-index: 300;
  display: flex;
  flex-direction: column;
  padding: 48px 40px;
  transform: translateX(-100%);
  transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}
.menu-panel.open { transform: translateX(0); }

.menu-close {
  background: none;
  border: none;
  color: var(--text-tertiary);
  font-size: 16px;
  cursor: pointer;
  align-self: flex-end;
  margin-bottom: 48px;
  padding: 4px;
  transition: color 0.2s;
}
.menu-close:hover { color: var(--text-primary); }

.menu-nav {
  display: flex;
  flex-direction: column;
  gap: 0;
}
.menu-nav a {
  font-family: var(--serif);
  font-weight: 300;
  font-size: 28px;
  color: var(--text-secondary);
  text-decoration: none;
  padding: 16px 0;
  border-bottom: 1px solid var(--border);
  transition: color 0.2s;
  letter-spacing: -0.01em;
}
.menu-nav a:hover  { color: var(--text-primary); }
.menu-nav a.active { color: oklch(0.78 0.10 220); }

.menu-footer {
  margin-top: auto;
  font-family: var(--serif);
  font-style: italic;
  font-size: 13px;
  color: var(--text-tertiary);
}

/* ── NAV CTA (index.html only) ── */
.nav-cta {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  text-decoration: none;
  border: 1px solid rgba(45,212,191,0.4);
  padding: 6px 14px;
  white-space: nowrap;
  transition: background 0.2s, border-color 0.2s;
}
.nav-cta:hover {
  background: var(--accent-dim);
  border-color: rgba(45,212,191,0.6);
}
@media (max-width: 768px) {
  .nav-cta { padding: 5px 10px; margin-left: 12px; }
}

/* ── LAYOUT ── */
.page-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 48px;
}

/* ── PAGE HEADER ── */
.page-header {
  padding-top: 130px;
  padding-bottom: 80px;
  border-bottom: 1px solid var(--border);
}

.page-header-single { max-width: 780px; }

.breadcrumb {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-tertiary);
  margin-bottom: 40px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.breadcrumb a { color: var(--text-tertiary); text-decoration: none; }
.breadcrumb a:hover { color: var(--text-secondary); }
.breadcrumb-sep { opacity: 0.4; }
.breadcrumb-current { color: var(--accent); opacity: 0.7; }

.page-header-grid {
  display: grid;
  grid-template-columns: 1fr 420px;
  gap: 80px;
  align-items: end;
}

.page-title {
  font-family: var(--serif);
  font-weight: 300;
  font-size: clamp(38px, 5vw, 64px);
  line-height: 1.08;
  letter-spacing: -0.015em;
  color: var(--text-primary);
  margin-bottom: 28px;
}
.page-title em { font-style: italic; color: var(--accent); }

.page-intro {
  font-style: italic;
  font-weight: 300;
  font-size: 18px;
  line-height: 1.75;
  color: var(--text-secondary);
  max-width: 620px;
}

.header-aside { padding-bottom: 8px; }

/* ── ASIDE / TOC ── */
.aside-block {
  border: 1px solid var(--border);
  padding: 28px;
  background: var(--bg-card);
}

.aside-label {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-tertiary);
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
}

.toc-list {
  list-style: none;
  display: flex;
  flex-direction: column;
}

.toc-item {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 10px 28px;
  border-bottom: 1px solid var(--border);
  cursor: pointer;
  margin: 0 -28px;
  transition: background 0.15s;
}
.toc-item:last-child { border-bottom: none; }
.toc-item:hover { background: var(--bg-card-hover); }

.toc-num {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--text-tertiary);
  min-width: 20px;
}

.toc-text {
  font-size: 13px;
  font-weight: 400;
  color: var(--text-secondary);
  line-height: 1.4;
}

/* ── CONTENT BODY ── */
.content-body {
  display: grid;
  grid-template-columns: 1fr 280px;
  align-items: start;
}

.content-main {
  border-right: 1px solid var(--border);
  padding-right: 72px;
  padding-bottom: 120px;
}

.content-sidebar {
  padding-left: 48px;
  padding-top: 80px;
  position: sticky;
  top: 100px;
}

/* ── ENTRIES (scroll-reveal rows) ── */
.problem-entry,
.cie-entry {
  padding: 72px 0;
  border-bottom: 1px solid var(--border);
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.problem-entry.visible,
.cie-entry.visible { opacity: 1; transform: translateY(0); }
.problem-entry:last-child,
.cie-entry:last-child { border-bottom: none; }

.entry-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 32px;
}

.entry-num {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  color: var(--accent);
  opacity: 0.6;
  min-width: 28px;
  padding-top: 2px;
}

.entry-tag {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-tertiary);
  border: 1px solid var(--border);
  padding: 4px 10px;
}

.entry-h {
  font-weight: 300;
  font-size: clamp(22px, 3vw, 32px);
  line-height: 1.18;
  color: var(--text-primary);
  margin-bottom: 28px;
  letter-spacing: -0.01em;
}
.entry-h em { font-style: italic; color: var(--accent); }

.entry-body { display: flex; flex-direction: column; gap: 18px; }
.entry-body p { font-size: 15px; font-weight: 300; line-height: 1.82; color: var(--text-secondary); }
.entry-body p strong { font-weight: 500; color: var(--text-primary); }

/* ── PULL QUOTE ── */
.pull-quote {
  margin: 32px 0;
  padding: 28px 32px;
  border-left: 2px solid var(--accent);
  background: var(--bg-card);
}
.pull-quote p { font-style: italic; font-weight: 300; font-size: 17px !important; line-height: 1.7 !important; color: var(--text-primary) !important; }
.pull-quote cite { display: block; margin-top: 12px; font-family: var(--mono); font-size: 10px; letter-spacing: 0.12em; color: var(--text-tertiary); font-style: normal; }

/* ── CALLOUT ── */
.callout {
  display: flex;
  gap: 20px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 24px 28px;
  margin: 28px 0;
}
.callout-icon { font-family: var(--mono); font-size: 11px; color: var(--accent); opacity: 0.7; min-width: 20px; padding-top: 1px; }
.callout-text { font-size: 13px !important; font-weight: 400 !important; line-height: 1.7 !important; color: var(--text-primary) !important; }

/* ── DATA POINTS ── */
.data-row {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  margin: 32px 0;
}
.data-cell { background: var(--bg-card); padding: 24px; }
.data-figure { font-family: var(--mono); font-size: 24px; font-weight: 500; color: var(--text-primary); display: block; margin-bottom: 6px; letter-spacing: -0.02em; }
.data-desc { font-size: 12px; font-weight: 300; color: var(--text-tertiary); line-height: 1.5; }

/* ── NOISE VISUALIZATION ── */
.noise-viz {
  border: 1px solid var(--border);
  background: var(--bg-card);
  margin: 32px 0;
  overflow: hidden;
}
.noise-viz-header { padding: 14px 20px; border-bottom: 1px solid var(--border); display: flex; align-items: center; justify-content: space-between; }
.noise-viz-title { font-family: var(--mono); font-size: 10px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--text-tertiary); }
.noise-legend { display: flex; gap: 16px; align-items: center; }
.legend-item { display: flex; align-items: center; gap: 6px; font-family: var(--mono); font-size: 9px; letter-spacing: 0.1em; color: var(--text-tertiary); }
.legend-dot { width: 8px; height: 8px; border-radius: 1px; }
.dot-noise  { background: rgba(45,212,191,0.2); }
.dot-signal { background: var(--mono-green); }
.noise-bars { padding: 20px; display: flex; flex-direction: column; gap: 8px; }
.bar-row { display: flex; align-items: center; gap: 12px; }
.bar-label { font-family: var(--mono); font-size: 9px; letter-spacing: 0.08em; color: var(--text-tertiary); min-width: 60px; text-align: right; text-transform: uppercase; }
.bar-track { flex: 1; height: 20px; background: rgba(255,255,255,0.03); position: relative; display: flex; overflow: hidden; }
.bar-fill-noise  { height: 100%; background: rgba(45,212,191,0.15); border-right: 1px solid rgba(45,212,191,0.2); }
.bar-fill-signal { height: 100%; background: rgba(134,239,172,0.25); border-right: 1px solid rgba(134,239,172,0.4); }
.bar-pct { font-family: var(--mono); font-size: 9px; color: var(--text-tertiary); min-width: 28px; }

/* ── EXAMPLE BLOCKS ── */
.example-block { border: 1px solid var(--border); background: var(--bg-card); margin: 28px 0; overflow: hidden; }
.example-label-row { display: grid; grid-template-columns: 1fr 1fr; border-bottom: 1px solid var(--border); }
.example-col-label { font-family: var(--mono); font-size: 9px; letter-spacing: 0.14em; text-transform: uppercase; padding: 12px 20px; color: var(--text-tertiary); }
.example-col-label:first-child { border-right: 1px solid var(--border); }
.example-content-row { display: grid; grid-template-columns: 1fr 1fr; }
.example-prose-col { padding: 20px; border-right: 1px solid var(--border); }
.example-prose-col p { font-style: italic; font-size: 13px; font-weight: 300; line-height: 1.7; color: var(--text-secondary); }
.example-noise-col { padding: 20px; display: flex; flex-direction: column; gap: 6px; }

.noise-tag { display: inline-block; font-family: var(--mono); font-size: 10px; letter-spacing: 0.08em; padding: 3px 9px; border: 1px solid; width: fit-content; }
.noise-tag.vague     { color: rgba(148,163,184,0.6); border-color: rgba(148,163,184,0.2); }
.noise-tag.opinion   { color: rgba(248,113,113,0.6); border-color: rgba(248,113,113,0.2); }
.noise-tag.duplicate { color: rgba(56,189,248,0.6);  border-color: rgba(56,189,248,0.2); }
.noise-tag.context   { color: rgba(196,181,253,0.6); border-color: rgba(196,181,253,0.2); }
.noise-tag.signal    { color: rgba(134,239,172,0.8); border-color: rgba(134,239,172,0.35); }
.noise-caption { font-size: 11px; font-weight: 300; color: var(--text-tertiary); line-height: 1.6; margin-top: 8px; }

/* ── SIDEBAR PROGRESS ── */
.sidebar-progress { display: flex; flex-direction: column; margin-bottom: 48px; }
.progress-item { display: flex; gap: 14px; align-items: flex-start; padding: 12px 0; border-bottom: 1px solid var(--border); cursor: pointer; opacity: 0.45; transition: opacity 0.2s; }
.progress-item:last-child { border-bottom: none; }
.progress-item.active { opacity: 1; }
.progress-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--text-tertiary); margin-top: 6px; flex-shrink: 0; transition: background 0.2s; }
.progress-item.active .progress-dot { background: var(--accent); }
.progress-label { font-family: var(--mono); font-size: 10px; letter-spacing: 0.1em; color: var(--text-secondary); line-height: 1.4; text-transform: uppercase; }
.progress-item.active .progress-label { color: var(--text-primary); }

.sidebar-cta { border: 1px solid var(--border); padding: 24px; background: var(--bg-card); }
.sidebar-cta-label { font-family: var(--mono); font-size: 9px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--text-tertiary); margin-bottom: 12px; }
.sidebar-cta p { font-size: 13px; font-weight: 300; line-height: 1.65; color: var(--text-secondary); margin-bottom: 16px; }
.sidebar-cta-link { font-family: var(--mono); font-size: 10px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--accent); text-decoration: none; border-bottom: 1px solid rgba(45,212,191,0.3); padding-bottom: 2px; display: inline-block; }

/* ── CONCLUSION ── */
.conclusion-entry {
  padding: 72px 0 0;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.conclusion-entry.visible { opacity: 1; transform: translateY(0); }
.conclusion-rule { display: flex; align-items: center; gap: 20px; margin-bottom: 48px; }
.conclusion-rule::before, .conclusion-rule::after { content: ''; flex: 1; height: 1px; background: var(--border); }
.conclusion-rule span { font-family: var(--mono); font-size: 10px; letter-spacing: 0.16em; text-transform: uppercase; color: var(--text-tertiary); white-space: nowrap; }
.conclusion-text { font-weight: 300; font-size: clamp(20px, 2.5vw, 28px); line-height: 1.55; color: var(--text-primary); max-width: 680px; margin-bottom: 24px; }
.conclusion-text em { font-style: italic; color: var(--accent); }
.conclusion-body { font-size: 15px; font-weight: 300; line-height: 1.82; color: var(--text-secondary); max-width: 620px; margin-bottom: 40px; }

.next-page-link {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  text-decoration: none;
  border: 1px solid rgba(45,212,191,0.25);
  padding: 14px 24px;
  transition: background 0.2s, border-color 0.2s;
}
.next-page-link:hover { background: var(--accent-dim); border-color: rgba(45,212,191,0.4); }
.next-page-link span { opacity: 0.5; }

/* ── CIE ENCODING BLOCK ── */
.encoding-block { background: var(--bg-card); border: 1px solid var(--border); overflow: hidden; margin-top: 28px; }
.encoding-header { padding: 12px 18px; border-bottom: 1px solid var(--border); display: flex; align-items: center; justify-content: space-between; }
.encoding-label { font-family: var(--mono); font-size: 10px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--text-tertiary); }
.encoding-badge { font-family: var(--mono); font-size: 9px; letter-spacing: 0.1em; text-transform: uppercase; padding: 3px 8px; border: 1px solid rgba(134,239,172,0.3); color: var(--mono-green); }
.encoding-source { padding: 16px 18px; border-bottom: 1px solid var(--border); font-style: italic; font-size: 13px; font-weight: 300; line-height: 1.65; color: var(--text-tertiary); }
.encoding-source strong { font-style: normal; font-weight: 400; color: var(--text-tertiary); font-family: var(--mono); font-size: 9px; letter-spacing: 0.12em; text-transform: uppercase; display: block; margin-bottom: 8px; }
.encoding-body { padding: 18px; font-family: var(--mono); font-size: 12px; line-height: 2; background: rgba(0,0,0,0.2); overflow-x: auto; white-space: pre; }
.cie-expression { font-family: var(--mono); font-size: 13px; line-height: 2.2; }

.annotation-toggle {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-tertiary);
  background: none;
  border: 1px solid var(--border);
  padding: 6px 14px;
  cursor: pointer;
  transition: color 0.2s, border-color 0.2s;
  margin-top: 16px;
}
.annotation-toggle:hover { color: var(--accent); border-color: rgba(45,212,191,0.3); }

.annotation-panel {
  display: none;
  margin-top: 16px;
  padding: 20px;
  background: var(--bg-card);
  border: 1px solid var(--border);
}
.annotation-panel.open { display: block; }

.rumint-header { color: var(--mono-amber); }

/* ── CIE SYNTAX TOKENS ── */
.tok-actor    { color: var(--mono-amber); }
.tok-action   { color: var(--mono-green); }
.tok-domain   { color: var(--mono-blue);  }
.tok-location { color: var(--mono-purple); }
.tok-operator { color: var(--text-tertiary); }
.tok-value    { color: var(--mono-red);   }
.tok-meta     { color: var(--text-tertiary); font-style: italic; }

/* ── BUTTONS ── */
.btn-primary {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #0a0a0b;
  background: oklch(0.78 0.10 220);
  border: none;
  padding: 12px 28px;
  text-decoration: none;
  cursor: pointer;
  transition: opacity 0.2s;
  display: inline-block;
}
.btn-primary:hover { opacity: 0.88; }

.btn-ghost {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-secondary);
  text-decoration: none;
  border-bottom: 1px solid var(--border);
  padding-bottom: 2px;
  transition: color 0.2s, border-color 0.2s;
}
.btn-ghost:hover { color: var(--text-primary); border-color: var(--border-accent); }

/* ── REVEAL ANIMATION ── */
.reveal { opacity: 0; transform: translateY(16px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ── FOOTER ── */
footer {
  border-top: 1px solid var(--border);
  padding: 36px 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.footer-left  { font-family: var(--mono); font-size: 11px; color: var(--text-tertiary); letter-spacing: 0.08em; }
.footer-left em { font-style: normal; color: var(--accent); opacity: 0.7; }
.footer-motto { font-style: italic; font-size: 13px; color: var(--text-tertiary); }
.footer-right { font-family: var(--mono); font-size: 11px; color: var(--text-tertiary); letter-spacing: 0.08em; }

/* ── PAGE: CAPABILITIES (examples.html) ── */
.cap-entry {
  padding: 80px 0;
  border-bottom: 1px solid var(--border);
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.cap-entry.visible { opacity: 1; transform: translateY(0); }
.cap-entry:last-of-type { border-bottom: none; }

.layer-indicator { display: flex; align-items: center; gap: 16px; margin-bottom: 36px; }
.layer-num { font-family: var(--mono); font-size: 10px; letter-spacing: 0.14em; color: var(--accent); opacity: 0.55; min-width: 28px; }
.layer-tag { font-family: var(--mono); font-size: 10px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--text-tertiary); border: 1px solid var(--border); padding: 4px 10px; }
.layer-prereq { font-family: var(--mono); font-size: 10px; letter-spacing: 0.08em; color: var(--text-tertiary); display: flex; align-items: center; gap: 6px; }
.prereq-arrow { opacity: 0.3; font-size: 9px; }

.cap-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: start; margin-top: 8px; }
.cap-layout.layout-full { grid-template-columns: 1fr; }

.cap-text h2 { font-weight: 300; font-size: clamp(24px, 3vw, 36px); line-height: 1.18; color: var(--text-primary); margin-bottom: 24px; letter-spacing: -0.01em; }
.cap-text h2 em { font-style: italic; color: var(--accent); }
.cap-text p { font-size: 15px; font-weight: 300; line-height: 1.82; color: var(--text-secondary); margin-bottom: 18px; }
.cap-text p:last-child { margin-bottom: 0; }
.cap-text p strong { font-weight: 500; color: var(--text-primary); }

.sub-caps { margin-top: 28px; display: flex; flex-direction: column; border-top: 1px solid var(--border); }
.sub-cap { display: flex; gap: 16px; align-items: flex-start; padding: 14px 0; border-bottom: 1px solid var(--border); }
.sub-cap:last-child { border-bottom: none; }
.sub-cap-dot { width: 4px; height: 4px; border-radius: 50%; background: var(--accent); opacity: 0.35; margin-top: 9px; flex-shrink: 0; }
.sub-cap-text { font-size: 13px; font-weight: 300; line-height: 1.65; color: var(--text-secondary); }
.sub-cap-text strong { font-weight: 500; color: var(--text-primary); display: block; margin-bottom: 2px; }

.visual-placeholder {
  border: 1px dashed rgba(45,212,191,0.2);
  background: rgba(45,212,191,0.02);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  min-height: 280px;
  padding: 32px;
}
.visual-placeholder-wide {
  border: 1px dashed rgba(45,212,191,0.2);
  background: rgba(45,212,191,0.02);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  min-height: 220px;
  padding: 32px;
  margin-top: 36px;
}
.placeholder-label { font-family: var(--mono); font-size: 10px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--text-tertiary); opacity: 0.5; text-align: center; }
.placeholder-title { font-family: var(--mono); font-size: 12px; color: var(--text-tertiary); text-align: center; line-height: 1.6; opacity: 0.6; }
.placeholder-icon { width: 32px; height: 32px; border: 1px solid rgba(45,212,191,0.15); display: flex; align-items: center; justify-content: center; font-family: var(--mono); font-size: 14px; color: var(--text-tertiary); opacity: 0.4; }

.scenario-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; background: var(--border); border: 1px solid var(--border); margin-top: 28px; }
.scenario-cell { background: var(--bg-card); padding: 20px 22px; }
.scenario-cell-label { font-family: var(--mono); font-size: 9px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--text-tertiary); margin-bottom: 8px; }
.scenario-cell-value { font-family: var(--mono); font-size: 18px; font-weight: 500; color: var(--text-primary); letter-spacing: -0.02em; margin-bottom: 4px; }
.scenario-cell-desc { font-size: 12px; font-weight: 300; color: var(--text-tertiary); line-height: 1.5; }

.query-block { background: var(--bg-card); border: 1px solid var(--border); margin-top: 28px; overflow: hidden; }
.query-header { padding: 12px 20px; border-bottom: 1px solid var(--border); font-family: var(--mono); font-size: 10px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--text-tertiary); }
.query-body { padding: 20px; display: flex; flex-direction: column; gap: 12px; }
.query-example { font-family: var(--mono); font-size: 12px; line-height: 1.7; color: var(--text-secondary); padding: 14px 16px; background: rgba(0,0,0,0.2); border-left: 2px solid rgba(45,212,191,0.25); }
.query-example em { font-style: normal; color: var(--mono-amber); }

.inquiry-callout { border: 1px solid var(--border); background: var(--bg-card); padding: 28px; margin-top: 28px; }
.inquiry-callout-label { font-family: var(--mono); font-size: 9px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--accent); opacity: 0.6; margin-bottom: 14px; }
.inquiry-callout p { font-size: 14px; font-weight: 300; line-height: 1.75; color: var(--text-secondary); margin-bottom: 12px; }
.inquiry-callout p:last-child { margin-bottom: 0; }
.inquiry-callout p strong { font-weight: 500; color: var(--text-primary); }

.stack-diagram { border: 1px solid var(--border); overflow: hidden; margin-bottom: 60px; opacity: 0; transform: translateY(16px); transition: opacity 0.6s ease, transform 0.6s ease; }
.stack-diagram.visible { opacity: 1; transform: translateY(0); }
.stack-label-row { padding: 14px 20px; border-bottom: 1px solid var(--border); font-family: var(--mono); font-size: 10px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--text-tertiary); }
.stack-layers { display: flex; }
.stack-layer { flex: 1; padding: 20px; border-right: 1px solid var(--border); transition: background 0.2s; }
.stack-layer:last-child { border-right: none; }
.stack-layer:hover { background: var(--bg-card); }
.stack-layer-num { font-family: var(--mono); font-size: 9px; color: var(--accent); opacity: 0.5; margin-bottom: 8px; }
.stack-layer-name { font-size: 12px; font-weight: 500; color: var(--text-primary); margin-bottom: 6px; }
.stack-layer-desc { font-size: 11px; font-weight: 300; color: var(--text-tertiary); line-height: 1.5; }

/* ── PAGE: HERO (index.html) ── */
.hero {
  min-height: 100vh;
  min-height: 100svh;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  padding: 100px 48px 80px;
  border-bottom: 1px solid var(--border);
  position: relative;
  overflow: hidden;
  gap: 48px;
  max-width: 100vw;
}

.hero-left {
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
}

.hero-right {
  display: flex;
  flex-direction: column;
  justify-content: center;
  height: 100%;
  padding-right: 48px;
  max-width: 100%;
}

.hero-bg-word {
  position: absolute;
  font-weight: 300;
  font-size: clamp(180px, 22vw, 320px);
  line-height: 1;
  letter-spacing: -0.04em;
  pointer-events: none;
  user-select: none;
  right: -0.02em;
  top: 50%;
  transform: translateY(-50%);
  white-space: nowrap;
}
.hero-bg-word.word-news  { color: rgba(255,255,255,0.04); top: 42%; }
.hero-bg-word.word-intel { color: rgba(45,212,191,0.05);  top: 58%; }

.hero-eyebrow {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  opacity: 0.7;
  margin-bottom: 36px;
  display: flex;
  align-items: center;
  gap: 14px;
}
.hero-eyebrow::before { content: ''; display: inline-block; width: 28px; height: 1px; background: var(--accent); opacity: 0.5; }

.hero-title {
  font-weight: 300;
  font-size: clamp(44px, 6.5vw, 92px);
  line-height: 1.04;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  max-width: 900px;
  margin-bottom: 40px;
}
.hero-title em { font-style: italic; color: oklch(0.78 0.10 220); }

.hero-brand {
  display: flex;
  justify-content: center;
  margin-bottom: 48px;
}

.hero-logo {
  display: block;
  height: 180px;
  width: auto;
  max-width: 100%;
}
.hero-body {
  font-style: italic;
  font-weight: 300;
  font-size: 18px;
  line-height: 1.75;
  color: var(--text-secondary);
  max-width: 560px;
  margin-bottom: 48px;
}

.hero-actions { display: flex; align-items: center; gap: 28px; }

.hero-scroll-indicator {
  position: absolute;
  bottom: 36px;
  right: 48px;
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-tertiary);
  display: flex;
  align-items: center;
  gap: 10px;
  opacity: 0.5;
}
.hero-scroll-indicator::after { content: ''; display: inline-block; width: 1px; height: 32px; background: var(--text-tertiary); }

/* ── PAGE: LANDING SECTIONS ── */
.landing-section {
  padding: 100px 48px;
  border-bottom: 1px solid var(--border);
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.landing-section.visible { opacity: 1; transform: translateY(0); }

.section-inner { max-width: 1280px; margin: 0 auto; }

.section-eyebrow {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 12px;
  opacity: 0.8;
}
.section-eyebrow::before { content: ''; display: inline-block; width: 16px; height: 1px; background: var(--accent); opacity: 0.6; }

.section-h {
  font-weight: 300;
  font-size: clamp(28px, 3.5vw, 46px);
  line-height: 1.12;
  letter-spacing: -0.015em;
  color: var(--text-primary);
  margin-bottom: 24px;
}
.section-h em { font-style: italic; color: var(--accent); }

.section-intro { font-size: 16px; font-weight: 300; line-height: 1.82; color: var(--text-secondary); max-width: 620px; margin-bottom: 56px; }

.section-link {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid rgba(45,212,191,0.25);
  padding-bottom: 2px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  transition: border-color 0.2s, opacity 0.2s;
  margin-top: 32px;
}
.section-link:hover { border-color: rgba(45,212,191,0.5); opacity: 0.8; }
.section-link span { opacity: 0.5; font-size: 9px; }

/* ── PAGE: PROBLEM GRID ── */
.problem-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
}
.problem-card { background: var(--bg-card); padding: 32px 28px; transition: background 0.2s; }
.problem-card:hover { background: var(--bg-card-hover); }
.problem-card-num { font-family: var(--mono); font-size: 9px; letter-spacing: 0.14em; color: var(--accent); opacity: 0.45; margin-bottom: 16px; }
.problem-card h3 { font-weight: 500; font-size: 14px; color: var(--text-primary); margin-bottom: 10px; line-height: 1.3; }
.problem-card p  { font-size: 13px; font-weight: 300; line-height: 1.7; color: var(--text-secondary); }

/* ── PAGE: CIE SECTION ── */
.cie-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 72px;
  align-items: start;
}

.cie-principles-list { display: flex; flex-direction: column; border: 1px solid var(--border); }
.cie-principle { display: flex; gap: 20px; padding: 20px 24px; border-bottom: 1px solid var(--border); transition: background 0.2s; }
.cie-principle:last-child { border-bottom: none; }
.cie-principle:hover { background: var(--bg-card); }
.cie-principle-glyph { font-family: var(--mono); font-size: 10px; color: var(--accent); opacity: 0.5; min-width: 20px; padding-top: 2px; }
.cie-principle-text { font-size: 13px; font-weight: 300; line-height: 1.6; color: var(--text-secondary); }
.cie-principle-text strong { font-weight: 500; color: var(--text-primary); display: block; margin-bottom: 3px; font-size: 13px; }

.cie-encoding-preview { background: var(--bg-card); border: 1px solid var(--border); overflow: hidden; }
.encoding-preview-header { padding: 12px 18px; border-bottom: 1px solid var(--border); display: flex; align-items: center; justify-content: space-between; }
.encoding-preview-label { font-family: var(--mono); font-size: 10px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--text-tertiary); }
.encoding-preview-badge { font-family: var(--mono); font-size: 9px; letter-spacing: 0.1em; text-transform: uppercase; padding: 3px 8px; border: 1px solid rgba(134,239,172,0.3); color: var(--mono-green); }
.encoding-preview-source { padding: 16px 18px; border-bottom: 1px solid var(--border); font-style: italic; font-size: 13px; font-weight: 300; line-height: 1.65; color: var(--text-tertiary); }
.encoding-preview-source strong { font-style: normal; font-weight: 400; color: var(--text-tertiary); font-family: var(--mono); font-size: 9px; letter-spacing: 0.12em; text-transform: uppercase; display: block; margin-bottom: 8px; }
.encoding-preview-code { font-family: var(--mono); font-size: 12px; line-height: 2; padding: 18px; background: rgba(0,0,0,0.2); overflow-x: auto; white-space: pre-wrap; }
.encoding-preview-footer { padding: 12px 18px; border-top: 1px solid var(--border); display: flex; align-items: center; justify-content: space-between; }
.encoding-stat { font-family: var(--mono); font-size: 10px; color: var(--text-tertiary); display: flex; align-items: center; gap: 8px; }
.encoding-stat-val { color: var(--mono-green); }

/* ── PAGE: STACK ROW ── */
.stack-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
}
.stack-card { background: var(--bg-card); padding: 28px 24px 32px; transition: background 0.2s; text-decoration: none; display: block; }
.stack-card:hover { background: var(--bg-card-hover); }
.stack-card-layer { font-family: var(--mono); font-size: 9px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--accent); opacity: 0.45; margin-bottom: 14px; }
.stack-card h3 { font-weight: 500; font-size: 14px; color: var(--text-primary); margin-bottom: 10px; }
.stack-card p  { font-size: 13px; font-weight: 300; line-height: 1.65; color: var(--text-secondary); margin-bottom: 20px; }
.stack-card-link { font-family: var(--mono); font-size: 9px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--text-tertiary); display: flex; align-items: center; gap: 6px; transition: color 0.2s; }
.stack-card:hover .stack-card-link { color: var(--accent); }

/* ── PAGE: METRICS STRIP ── */
.metrics-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-bottom: 1px solid var(--border);
}
.metric { padding: 40px 48px; border-right: 1px solid var(--border); }
.metric:last-child { border-right: none; }
.metric-value { font-family: var(--mono); font-size: 32px; font-weight: 500; color: var(--text-primary); letter-spacing: -0.02em; display: block; margin-bottom: 6px; }
.metric-label { font-family: var(--mono); font-size: 10px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--text-tertiary); display: block; line-height: 1.4; }

/* ── PAGE: CTA SECTION ── */
.cta-section {
  padding: 120px 48px;
  background: var(--bg-surface);
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-bg { position: absolute; font-weight: 300; font-size: clamp(120px, 16vw, 220px); line-height: 1; letter-spacing: -0.04em; color: rgba(45,212,191,0.025); top: 50%; left: 50%; transform: translate(-50%,-50%); pointer-events: none; user-select: none; white-space: nowrap; }
.cta-inner { max-width: 620px; margin: 0 auto; position: relative; z-index: 1; }
.cta-eyebrow { font-family: var(--mono); font-size: 10px; letter-spacing: 0.18em; text-transform: uppercase; color: var(--accent); opacity: 0.7; margin-bottom: 24px; }
.cta-h { font-weight: 300; font-size: clamp(32px, 4vw, 52px); line-height: 1.12; letter-spacing: -0.015em; color: var(--text-primary); margin-bottom: 20px; }
.cta-h em { font-style: italic; color: var(--accent); }
.cta-body { font-size: 16px; font-weight: 300; line-height: 1.75; color: var(--text-secondary); margin-bottom: 40px; }
.cta-actions { display: flex; align-items: center; justify-content: center; gap: 24px; }

/* ── RESPONSIVE ── */
@media (max-width: 1200px) {
  .hero {
    grid-template-columns: 1fr;
  }
  .hero-right {
    padding-right: 0;
    height: auto;
  }
}

@media (max-width: 1024px) {
  nav, footer { padding-left: 24px; padding-right: 24px; }
  .page-container { padding-left: 24px; padding-right: 24px; }
  .page-header-grid { grid-template-columns: 1fr; gap: 40px; }
  .content-body { grid-template-columns: 1fr; }
  .content-main { border-right: none; padding-right: 0; }
  .content-sidebar { display: none; }
  .data-row { grid-template-columns: 1fr; }
  .cap-layout { grid-template-columns: 1fr; gap: 36px; }
  .scenario-grid { grid-template-columns: 1fr; }
  .stack-layers { flex-direction: column; }
  .stack-layer { border-right: none; border-bottom: 1px solid var(--border); }
  .stack-layer:last-child { border-bottom: none; }
  .hero { padding: 80px 24px 64px; }
  .landing-section { padding: 72px 24px; }
  .problem-grid { grid-template-columns: 1fr 1fr; }
  .cie-split { grid-template-columns: 1fr; gap: 40px; }
  .stack-row { grid-template-columns: 1fr 1fr; }
  .metrics-strip { grid-template-columns: 1fr 1fr; }
  .metric { padding: 28px 24px; border-right: none; border-bottom: 1px solid var(--border); }
  .metric:nth-child(even) { border-left: 1px solid var(--border); }
  .metric:last-child { border-bottom: none; }
  .cta-section { padding: 80px 24px; }
  .cta-actions { flex-direction: column; }
  .hero-scroll-indicator { display: none; }
  footer { flex-direction: column; gap: 10px; text-align: center; padding: 32px 24px; }
}

@media (max-width: 768px) {
  .hero-logo { height: 56px; }
  .animatic-body { padding: 20px 16px 24px; min-height: 200px; }
  .animatic-text { font-size: 13px; min-height: 140px; }
}

@media (max-width: 640px) {
  .problem-grid  { grid-template-columns: 1fr; }
  .stack-row     { grid-template-columns: 1fr; }
  .metrics-strip { grid-template-columns: 1fr; }
  .metric        { padding: 24px 20px; border-left: none !important; }
}

/* Title block above shell */
.animatic-title-block {
  margin-bottom: 20px;
}

.animatic-eyebrow {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
  opacity: 0.7;
  margin-bottom: 8px;
}

.animatic-heading {
  font-family: var(--serif);
  font-weight: 300;
  font-size: 22px;
  color: var(--text-primary);
  margin-bottom: 10px;
  letter-spacing: -0.01em;
}

.animatic-subhead {
  font-size: 13px;
  font-weight: 300;
  line-height: 1.65;
  color: var(--text-secondary);
}

/* Shell */
.animatic-shell { border: 1px solid var(--border-med); background: var(--bg-card); overflow: hidden; position: relative; width: 100%; max-width: 560px; }

/* Header bar */
.animatic-header { padding: 11px 18px; border-bottom: 1px solid var(--border); display: flex; align-items: center; justify-content: space-between; }
.animatic-header-label { font-family: var(--mono); font-size: 9px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--text-tertiary); }

/* Status indicator with pulsing dot */
.animatic-status { display: flex; align-items: center; gap: 6px; font-family: var(--mono); font-size: 9px; letter-spacing: 0.1em; color: var(--mono-green); opacity: 0.7; }
.animatic-status::before { content: ''; width: 5px; height: 5px; border-radius: 50%; background: var(--mono-green); display: block; animation: pulse 2s ease-in-out infinite; }
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.3; } }

/* Body */
.animatic-body { padding: 28px 24px 32px; min-height: 260px; display: flex; flex-direction: column; justify-content: flex-start; }
.animatic-counter { font-family: var(--mono); font-size: 9px; letter-spacing: 0.1em; color: var(--text-tertiary); margin-bottom: 20px; opacity: 0.5; }
.animatic-text { font-family: var(--mono); font-size: 16px; line-height: 2; color: var(--text-secondary); white-space: pre-wrap; overflow: hidden; overflow-x: hidden; min-height: 180px; }

/* Syntax token colors */
.animatic-text .t-actor    { color: var(--mono-amber); }
.animatic-text .t-action   { color: var(--mono-green); }
.animatic-text .t-domain   { color: var(--mono-blue); }
.animatic-text .t-location { color: var(--mono-purple); }
.animatic-text .t-op       { color: var(--text-tertiary); }
.animatic-text .t-value    { color: var(--mono-red); }

/* Blinking cursor */
.animatic-cursor { display: inline-block; width: 7px; height: 14px; background: var(--accent); opacity: 0.7; vertical-align: middle; animation: blink 1s step-end infinite; margin-left: 1px; }
@keyframes blink { 0%, 100% { opacity: 0.7; } 50% { opacity: 0; } }

/* Progress pips footer */
.animatic-footer { padding: 10px 18px; border-top: 1px solid var(--border); display: flex; align-items: center; gap: 8px; }
.animatic-progress-pip { width: 20px; height: 2px; background: var(--border-med); transition: background 0.4s, width 0.4s; }
.animatic-progress-pip.active { background: var(--accent); width: 28px; }