/* ─── Design System ─────────────────────────────────────────── */
:root {
  --font-sans: 'Inter', ui-sans-serif, system-ui, -apple-system, sans-serif;
  --font-mono: ui-monospace, 'SF Mono', 'Fira Code', monospace;

  --color-surface-base:    #0C0C0E;
  --color-surface-raised:  #131316;
  --color-surface-overlay: #1C1C21;

  --color-text-primary:   #F0EFE8;
  --color-text-secondary: #9896A0;
  --color-text-tertiary:  #5E5C68;

  --color-border-primary:   #4D4C5A;
  --color-border-secondary: #3D3D4A;
  --color-border-tertiary:  #2A2A32;

  /* widget compat aliases */
  --color-background-primary:   #131316;
  --color-background-secondary: #1C1C21;

  /* substrate layer colors */
  --color-layer-spatial:    #534AB7;
  --color-layer-relational: #1D9E75;
  --color-layer-symbolic:   #D85A30;
  --color-layer-temporal:   #BA7517;
  --color-layer-internal:   #888780;

  --border-radius-sm: 4px;
  --border-radius-md: 8px;
  --border-radius-lg: 12px;
}

/* ─── Reset & Base ───────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  background: var(--color-surface-base);
  color: var(--color-text-primary);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}
.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

/* ─── Navigation (Main) ───────────────────────────────────────── */
.site-nav {
  position: sticky; top: 0; z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 32px; height: 56px;
  background: rgba(12,12,14,0.88);
  backdrop-filter: blur(14px);
  border-bottom: 0.5px solid var(--color-border-tertiary);
}
.nav-brand {
  font-size: 12px; font-weight: 600; letter-spacing: 0.14em;
  color: var(--color-text-primary); text-decoration: none;
  font-family: var(--font-mono);
}
.nav-links { display: flex; gap: 2px; list-style: none; }
.nav-links a {
  font-size: 13px; color: var(--color-text-secondary);
  text-decoration: none; padding: 6px 14px;
  border-radius: var(--border-radius-md);
  transition: color 0.15s, background 0.15s;
}
.nav-links a:hover,
.nav-links a.current {
  color: var(--color-text-primary);
  background: var(--color-surface-overlay);
}

/* ─── Navigation (Sub) ────────────────────────────────────────── */
.sub-nav {
  position: sticky; top: 56px; z-index: 99;
  display: flex; align-items: center; justify-content: center;
  padding: 0 32px; height: 40px;
  background: rgba(12,12,14,0.82);
  backdrop-filter: blur(14px);
  border-bottom: 0.5px solid var(--color-border-tertiary);
}
.sub-nav-links { display: flex; gap: 2px; list-style: none; }
.sub-nav-links a {
  font-size: 12px; color: var(--color-text-tertiary);
  text-decoration: none; padding: 4px 12px;
  border-radius: var(--border-radius-md);
  transition: color 0.15s, background 0.15s;
}
.sub-nav-links a:hover { color: var(--color-text-secondary); }
.sub-nav-links a.current { color: var(--color-text-primary); }

/* ─── Page Sections ─────────────────────────────────────────── */
.wrap { max-width: 1000px; margin: 0 auto; padding: 80px 32px; }
.wrap-wide { max-width: 1360px; margin: 0 auto; padding: 80px 32px; }
/* Narrow left-aligned wrap — lets overflow visuals bleed through right side */
.wrap-left { margin-left: 10%; margin-right: auto; max-width: 640px; }
@media (max-width: 768px) { .wrap-left { margin-left: auto; } }
.section-divider { border: none; border-top: 0.5px solid var(--color-border-tertiary); }
.section-label {
  font-size: 11px; font-weight: 500; letter-spacing: 0.1em;
  color: var(--color-text-tertiary); font-family: var(--font-mono);
  margin-bottom: 12px;
}
.section-title { font-size: 28px; font-weight: 600; margin-bottom: 8px; line-height: 1.25; }
.section-sub {
  font-size: 15px; line-height: 1.7; color: var(--color-text-secondary);
  margin-bottom: 40px; max-width: 800px;
}

/* ─── Footer ────────────────────────────────────────────────── */
.site-footer {
  padding: 28px 32px;
  border-top: 0.5px solid var(--color-border-tertiary);
  display: flex; align-items: center; justify-content: space-between;
}
.footer-mark { font-size: 12px; font-family: var(--font-mono); color: var(--color-text-tertiary); }

/* ─── Hero Components ───────────────────────────────────────── */
#hero { 
  padding: 160px 32px 140px; 
  max-width: 100%; 
  margin: 0;
  background: linear-gradient(to bottom, rgba(12,12,14,0.7), rgba(12,12,14,0.95)), url('SysHero_bg.jpg') center/cover no-repeat;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}
@media (max-width: 768px) { #hero { padding: 100px 24px; } }
.hero-eyebrow {
  font-size: 11px; font-weight: 500; letter-spacing: 0.14em;
  color: var(--color-text-tertiary); font-family: var(--font-mono); margin-bottom: 24px;
}
.hero-headline {
  font-size: 54px; font-weight: 600; line-height: 1.07;
  letter-spacing: -0.022em; margin: 0 auto 24px; max-width: 620px;
}
.hero-headline em { font-style: normal; color: var(--color-text-secondary); }
.hero-body {
  font-size: 17px; line-height: 1.75; color: var(--color-text-secondary);
  max-width: 520px; margin: 0 auto 36px;
}
.hero-layers { display: flex; gap: 10px; margin: 32px 0 40px; flex-wrap: wrap; }
.layer-pill {
  font-size: 12px; padding: 5px 13px; border-radius: 999px;
  font-weight: 500; border: 0.5px solid;
}
.layer-pill.spatial   { color:#534AB7; border-color:rgba(83,74,183,.4);  background:rgba(83,74,183,.08); }
.layer-pill.relational{ color:#1D9E75; border-color:rgba(29,158,117,.4); background:rgba(29,158,117,.08); }
.layer-pill.symbolic  { color:#D85A30; border-color:rgba(216,90,48,.4);  background:rgba(216,90,48,.08); }
.layer-pill.temporal  { color:#BA7517; border-color:rgba(186,117,23,.4); background:rgba(186,117,23,.08); }
.layer-pill.internal  { color:#888780; border-color:rgba(136,135,128,.4);background:rgba(136,135,128,.08); }
.hero-ctas { display: flex; gap: 12px; flex-wrap: wrap; }
.cta-primary {
  font-size: 13px; font-weight: 500; padding: 10px 22px;
  border-radius: var(--border-radius-md);
  background: var(--color-text-primary); color: var(--color-surface-base);
  text-decoration: none; transition: opacity 0.15s;
}
.cta-primary:hover { opacity: 0.85; }
.cta-secondary {
  font-size: 13px; font-weight: 500; padding: 10px 22px;
  border-radius: var(--border-radius-md);
  border: 0.5px solid var(--color-border-secondary);
  color: var(--color-text-secondary); text-decoration: none;
  transition: color 0.15s, border-color 0.15s, background 0.15s;
}
.cta-secondary:hover {
  color: var(--color-text-primary);
  border-color: var(--color-border-primary);
  background: var(--color-surface-overlay);
}

/* ─── Substrate 3D Background ────────────────────────────────── */
/* ─── Substrate Section ───────────────────────────────────────── */
#framework { 
  position: relative; 
  overflow: visible; 
  height: 450px; 
  margin-top: 100px;
  margin-bottom: 100px;
  z-index: 1; /* Establish a stacking context */
}
.substrate-flex-container {
  display: flex;
  width: 70vw;
  margin: 0 auto;
  align-items: flex-start;
  padding-top: 20px;
  justify-content: space-between;
  position: relative;
  z-index: 5;
  overflow: visible;
}
.substrate-content { 
  position: relative; 
  z-index: 20; 
  width: 550px; /* 50px wider */
  flex-shrink: 0; 
  pointer-events: auto;
  margin-left: -50px; /* 50px to the left */
}
.substrate-visual-container {
  position: absolute;
  right: -1250px; 
  top: 50%;
  transform: translateY(-50%);
  width: 2500px; 
  height: 1400px;
  pointer-events: none;
  z-index: 0; /* Keep it behind text and other sections */
}
.substrate-visual-container .substrate-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}
#substrate-canvas { 
  width: 100%; height: 100%; display: block; cursor: grab; 
  pointer-events: auto; 
}

/* Adjacent sections: higher z-index with pointer-events, but NO background so model bleeds through visually */
#hero, #structures {
  position: relative;
  z-index: 10;
  pointer-events: auto;
}
#events {
  position: relative;
  z-index: 10;
  pointer-events: auto;
  background: linear-gradient(to bottom, rgba(12,12,14,0.8), rgba(12,12,14,0.9)), url('darkCity.jpg') center/cover no-repeat;
  padding: 80px 20% 120px;
  margin: 0;
  max-width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}
@media (max-width: 768px) { #events { padding: 80px 24px; } }

@media (max-width: 1400px) {
  .substrate-flex-container { width: 90vw; }
}

/* ── Tablet: keep side layout, shrink + push model back ─────── */
@media (max-width: 1000px) {
  #framework { height: auto; min-height: 420px; margin: 60px 0; }
  .substrate-flex-container {
    width: calc(100% - 48px);
    margin: 0 24px;
    align-items: flex-start;
    padding-top: 0;
  }
  .substrate-content {
    width: 460px;
    flex-shrink: 0;
    margin-left: 0; /* reset desktop left-shift */
  }
  /* Model stays on the side — smaller, pushed back, non-blocking */
  .substrate-visual-container {
    position: absolute;
    right: -400px;        /* Anchored to right, mostly off-screen */
    top: 50%;
    transform: translateY(-50%);
    width: 900px;         /* Much smaller than desktop 2500px */
    height: 900px;
    pointer-events: none; /* Never blocks taps */
    opacity: 0.7;
    z-index: 0;
  }
}

/* ── Mobile: model floats into gap above section, behind content ─ */
@media (max-width: 768px) {
  #framework {
    margin-top: -160px; /* Pull section up into the hero gap */
    padding-top: 0;
    z-index: 2;
  }
  .substrate-flex-container {
    padding-top: 180px; /* Push text down below where model peaks */
  }
  /* Model is absolute, sitting in the gap behind everything */
  .substrate-visual-container {
    position: absolute;
    top: -40px;       /* Overlap with the bottom of the hero section */
    left: 50%;
    transform: translateX(-50%);
    width: 500px;
    height: 500px;
    right: auto;
    margin-top: 0;
    pointer-events: none;  /* Don't capture any taps on mobile */
    opacity: 0.55;         /* More recessive — background element */
    z-index: 0;
  }
  #substrate-canvas {
    pointer-events: none; /* No interaction on mobile */
    cursor: default;
  }
}

.substrate-layer-nav { display: flex; gap: 6px; flex-wrap: wrap; justify-content: flex-start; padding: 28px 0 0; }
.substrate-btn {
  display: inline-flex; align-items: center; gap: 7px; padding: 7px 16px;
  border: 0.5px solid var(--color-border-tertiary); border-radius: 999px; background: none;
  color: var(--color-text-secondary); font-size: 12px; font-family: var(--font-sans); cursor: pointer;
  transition: border-color 0.2s, color 0.2s, background 0.2s;
}
.substrate-btn:hover { border-color: var(--color-border-secondary); color: var(--color-text-primary); }
.substrate-btn.active {
  border-color: var(--layer-color, var(--color-border-primary));
  color: var(--color-text-primary); background: var(--color-surface-overlay);
}
.substrate-btn .btn-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--layer-color); flex-shrink: 0; }
.substrate-panel {
  margin-top: 12px; padding: 24px 28px; background: rgba(19,19,22,0.82);
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  border: 0.5px solid var(--color-border-tertiary); border-radius: var(--border-radius-lg);
  position: relative; overflow: hidden; min-height: 120px;
}
.substrate-panel::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: var(--panel-accent, transparent); transition: background 0.35s;
}
@keyframes spFadeUp {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}
.sp-inner { animation: spFadeUp 0.28s ease; }
.sp-name { font-size: 18px; font-weight: 600; color: var(--color-text-primary); margin-bottom: 3px; }
.sp-sub {
  font-size: 11px; font-family: var(--font-mono); letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--color-text-tertiary); margin-bottom: 14px;
}
.sp-desc { font-size: 14px; line-height: 1.7; color: var(--color-text-secondary); margin-bottom: 14px; }
.sp-ask {
  font-size: 13px; line-height: 1.65; color: var(--color-text-secondary);
  padding: 12px 14px; background: var(--color-surface-overlay);
  border-left: 2px solid var(--panel-accent, var(--color-border-secondary));
  border-radius: 0 6px 6px 0; transition: border-color 0.35s; display: flex; gap: 10px;
}
.sp-ask-label {
  font-size: 10px; font-family: var(--font-mono); letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--color-text-tertiary); flex-shrink: 0; padding-top: 2px;
}

/* ─── Meaning Structures Catalog ────────────────────────────── */
.cat { font-family: var(--font-sans); color: var(--color-text-primary); padding: .5rem 0 2.5rem; }
.cat-intro { font-size: 13px; line-height: 1.7; color: var(--color-text-secondary); margin: 0 0 4px; }
.cat-sub { font-size: 12px; color: var(--color-text-tertiary); margin: 0 0 20px; }
.col-heads { display: grid; grid-template-columns: 1fr auto; gap: 12px; padding: 0 14px 8px; border-bottom: .5px solid var(--color-border-tertiary); margin-bottom: 2px; }
.ch { font-size: 11px; font-weight: 500; letter-spacing: .07em; color: var(--color-text-tertiary); font-family: var(--font-mono); }
.srow { border: .5px solid var(--color-border-tertiary); border-radius: var(--border-radius-md); margin-bottom: 6px; background: var(--color-background-primary); overflow: hidden; cursor: pointer; transition: border-color .15s; }
.srow.open, .srow:hover { border-color: var(--color-border-secondary); }
.srow-head { display: grid; grid-template-columns: 1fr auto; gap: 12px; align-items: center; padding: 13px 14px; }
.srow-left { display: flex; flex-direction: column; gap: 3px; }
.srow-name { font-size: 14px; font-weight: 500; }
.srow-mech { font-size: 12px; color: var(--color-text-secondary); line-height: 1.4; }
.srow-right { display: flex; align-items: center; gap: 6px; }
.pos-pill { font-size: 10px; padding: 2px 8px; border-radius: 999px; border: .5px solid var(--color-border-tertiary); color: var(--color-text-tertiary); white-space: nowrap; }
.chevron { font-size: 14px; color: var(--color-text-tertiary); transition: transform .2s; margin-left: 4px; }
.srow.open .chevron { transform: rotate(90deg); }
.srow-detail { display: none; border-top: .5px solid var(--color-border-tertiary); padding: 14px; }
.srow.open .srow-detail { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.det-cell { background: var(--color-background-secondary); border-radius: var(--border-radius-md); padding: 11px 13px; }
.det-cell.full { grid-column: 1/-1; }
.det-label { font-size: 11px; font-weight: 500; letter-spacing: .06em; color: var(--color-text-tertiary); margin-bottom: 5px; font-family: var(--font-mono); }
.det-val, .risk-val { font-size: 13px; line-height: 1.6; color: var(--color-text-secondary); }
.det-val b { color: var(--color-text-primary); font-weight: 500; }
.ex-pills { display: flex; flex-wrap: wrap; gap: 5px; margin-top: 2px; }
.ex-pill { font-size: 11px; padding: 3px 8px; border-radius: 999px; background: var(--color-background-primary); border: .5px solid var(--color-border-tertiary); color: var(--color-text-secondary); }
.tip-box { grid-column: 1/-1; border-left: 2px solid var(--color-border-tertiary); border-radius: 0 var(--border-radius-md) var(--border-radius-md) 0; padding: 9px 13px; font-size: 12px; line-height: 1.6; color: var(--color-text-secondary); font-style: italic; background: var(--color-background-secondary); }

/* ─── Structure Summary Grid ────────────────────────────────── */
.structure-summary-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 12px;
  margin-top: 32px;
}
.summary-card {
  padding: 24px;
  background: var(--color-surface-raised);
  border: 0.5px solid var(--color-border-tertiary);
  border-radius: var(--border-radius-lg);
  transition: all 0.25s cubic-bezier(0.2, 0, 0, 1);
  text-decoration: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.summary-card:hover {
  border-color: var(--color-border-primary);
  background: var(--color-surface-overlay);
  transform: translateY(-4px);
}
.summary-card .s-name {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text-primary);
}
.summary-card .s-mech {
  font-size: 12px;
  line-height: 1.5;
  color: var(--color-text-tertiary);
}
.view-all-link {
  grid-column: 1 / -1;
  text-align: right;
  margin-top: 24px;
}
.view-all-link a {
  font-size: 13px;
  color: var(--color-text-secondary);
  text-decoration: none;
  font-family: var(--font-mono);
  letter-spacing: 0.05em;
  border-bottom: 1px solid var(--color-border-tertiary);
  padding-bottom: 2px;
  transition: all 0.2s;
}
.view-all-link a:hover {
  color: var(--color-text-primary);
  border-color: var(--color-text-primary);
}

/* ─── Event Frameworks Grid ─────────────────────────────────── */
.card { border: .5px solid var(--color-border-tertiary); border-radius: var(--border-radius-lg); background: var(--color-background-primary); overflow: hidden; }
.card-top { padding: 20px 20px 16px; border-bottom: .5px solid var(--color-border-tertiary); }
.card-num { font-size: 11px; font-weight: 500; letter-spacing: .1em; color: var(--color-text-tertiary); margin-bottom: 6px; font-family: var(--font-mono); }
.card-title { font-size: 17px; font-weight: 500; margin-bottom: 6px; }
.card-tag { display: inline-block; font-size: 11px; padding: 3px 10px; border-radius: 999px; font-weight: 500; margin-bottom: 10px; }
.card-hook { font-size: 13px; line-height: 1.7; color: var(--color-text-secondary); }
.card-body { padding: 16px 20px; display: grid; gap: 12px; }
.row { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.cell { background: var(--color-background-secondary); border-radius: var(--border-radius-md); padding: 12px 14px; }
.cell-label { font-size: 11px; font-weight: 500; color: var(--color-text-tertiary); letter-spacing: .06em; margin-bottom: 5px; font-family: var(--font-mono); }
.cell-val { font-size: 13px; color: var(--color-text-secondary); line-height: 1.6; }
.cell-val b { color: var(--color-text-primary); font-weight: 500; }
.moves { border: .5px solid var(--color-border-tertiary); border-radius: var(--border-radius-md); padding: 12px 14px; }
.moves-label { font-size: 11px; font-weight: 500; color: var(--color-text-tertiary); letter-spacing: .06em; margin-bottom: 8px; font-family: var(--font-mono); }
.move-row { display: flex; gap: 10px; align-items: flex-start; margin-bottom: 7px; }
.move-row:last-child { margin-bottom: 0; }
.move-num { font-size: 11px; font-weight: 500; min-width: 18px; height: 18px; border-radius: 50%; display: flex; align-items: center; justify-content: center; flex-shrink: 0; margin-top: 1px; }
.move-txt { font-size: 13px; line-height: 1.5; color: var(--color-text-secondary); }
.fit { border-left: 2px solid var(--color-border-tertiary); border-radius: 0 var(--border-radius-md) var(--border-radius-md) 0; padding: 10px 14px; font-size: 12px; line-height: 1.6; color: var(--color-text-secondary); font-style: italic; }
.fw-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 16px; }
/* framework color tags */
.p50 { background: #EEEDFE; } .p800 { color: #3C3489; }
.t50 { background: #E1F5EE; } .t800 { color: #085041; }
.c50 { background: #FAECE7; } .c800 { color: #712B13; }
.b50 { background: #E6F1FB; } .b800 { color: #0C447C; }
.g50 { background: #EAF3DE; } .g800 { color: #27500A; }
.pk50 { background: #FBEAF0; } .pk800 { color: #72243E; }

/* ─── Mapping Layer ─────────────────────────────────────────── */
#map.wrap-wide { padding-left: 10%; padding-right: 10%; max-width: 100%; }
.mp { font-family: var(--font-sans); color: var(--color-text-primary); padding: .5rem 0 2.5rem; }
.msel { display: grid; gap: 5px; margin-bottom: 20px; }
.mrow { display: flex; flex-wrap: wrap; gap: 5px; }
.mrow-label { font-size: 10px; font-weight: 500; letter-spacing: .08em; color: var(--color-text-tertiary); padding: 6px 2px 2px; width: 100%; font-family: var(--font-mono); }
.mpill { font-size: 12px; padding: 7px 14px; border: .5px solid var(--color-border-tertiary); border-radius: 999px; background: var(--color-background-primary); cursor: pointer; color: var(--color-text-secondary); font-family: var(--font-sans); transition: all .15s; }
.mpill:hover:not(.active) { background: var(--color-background-secondary); }
.mpill.active { background: var(--color-background-secondary); border-color: var(--color-border-primary); color: var(--color-text-primary); font-weight: 500; }
.dpanel { display: grid; gap: 9px; }
.dquality { background: var(--color-background-secondary); border-radius: var(--border-radius-md); padding: 15px 16px; font-size: 13px; line-height: 1.7; color: var(--color-text-secondary); }
.d2col { display: grid; grid-template-columns: 1fr 1fr; gap: 9px; }
.dcell { border: .5px solid var(--color-border-tertiary); border-radius: var(--border-radius-md); padding: 13px 14px; background: var(--color-background-primary); }
.dcell.full { grid-column: 1/-1; }
.dlabel { font-size: 10px; font-weight: 500; letter-spacing: .08em; color: var(--color-text-tertiary); margin-bottom: 8px; font-family: var(--font-mono); }
.dlayer { font-size: 13px; line-height: 1.6; color: var(--color-text-secondary); }
.igrid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 4px; }
.ic { display: flex; flex-direction: column; align-items: center; gap: 5px; padding: 7px 2px; border-radius: 6px; }
.iname { font-size: 10px; color: var(--color-text-tertiary); text-align: center; line-height: 1.2; }
.idot { width: 9px; height: 9px; border-radius: 50%; flex-shrink: 0; }
.idot.hi { background: #534AB7; }
.idot.med { background: #B4B2A9; }
.idot.low { background: none; border: .5px solid var(--color-border-secondary); }
.idot.avoid { background: #F09595; }
.ilegend { display: flex; gap: 12px; margin-top: 8px; flex-wrap: wrap; }
.ileg-item { display: flex; align-items: center; gap: 5px; font-size: 10px; color: var(--color-text-tertiary); }
.structs { display: grid; gap: 7px; }
.scard { display: flex; gap: 11px; align-items: flex-start; padding: 11px 13px; border: .5px solid var(--color-border-tertiary); border-radius: var(--border-radius-md); background: var(--color-background-primary); }
.snum { width: 18px; height: 18px; border-radius: 50%; background: #EEEDFE; color: #3C3489; font-size: 10px; font-weight: 500; display: flex; align-items: center; justify-content: center; flex-shrink: 0; margin-top: 1px; }
.snum.hi { background: #534AB7; color: #fff; }
.sname { font-size: 13px; font-weight: 500; margin-bottom: 3px; }
.sreason { font-size: 12px; color: var(--color-text-secondary); line-height: 1.5; }
.fwpills { display: flex; flex-wrap: wrap; gap: 5px; margin-bottom: 9px; }
.fwpill { font-size: 11px; padding: 3px 9px; border-radius: 999px; background: var(--color-background-secondary); border: .5px solid var(--color-border-tertiary); color: var(--color-text-secondary); }
.fwnote { font-size: 12px; line-height: 1.6; color: var(--color-text-secondary); }
.tqbox { border-left: 2px solid #7F77DD; border-radius: 0 var(--border-radius-md) var(--border-radius-md) 0; padding: 13px 15px; background: var(--color-background-secondary); font-size: 14px; line-height: 1.65; color: var(--color-text-primary); font-style: italic; }
.avoidbox { border: .5px solid var(--color-border-tertiary); border-left: 2px solid #F09595; border-radius: 0 var(--border-radius-md) var(--border-radius-md) 0; padding: 11px 14px; background: var(--color-background-primary); }
.avoidlabel { font-size: 10px; font-weight: 500; color: #A32D2D; letter-spacing: .08em; margin-bottom: 5px; font-family: var(--font-mono); }
.avoidtext { font-size: 12px; line-height: 1.6; color: var(--color-text-secondary); }

.dpanel-toggle {
  display: inline-flex; align-items: center; gap: 6px;
  background: none; border: none; cursor: pointer;
  font-size: 10px; font-family: var(--font-mono); letter-spacing: 0.08em;
  color: var(--color-surface-base); padding: 4px 0;
  transition: opacity 0.15s;
}
.dpanel-toggle:hover { opacity: 0.6; }
.dpanel-toggle-row { display: flex; justify-content: flex-end; }

.dpanel-cta {
  display: none;
  margin-top: 4px;
  padding: 20px 22px;
  border: 0.5px solid var(--color-border-secondary);
  border-left: 2px solid #7F77DD;
  border-radius: 0 var(--border-radius-md) var(--border-radius-md) 0;
  background: var(--color-surface-raised);
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}
.dpanel-cta-body {
  font-size: 13px;
  line-height: 1.7;
  color: var(--color-text-secondary);
  flex: 1;
  min-width: 200px;
}
.dpanel-cta-link {
  font-size: 12px;
  font-weight: 500;
  color: var(--color-text-primary);
  text-decoration: none;
  white-space: nowrap;
  border-bottom: 0.5px solid var(--color-border-primary);
  padding-bottom: 1px;
  transition: border-color 0.15s, color 0.15s;
  flex-shrink: 0;
}
.dpanel-cta-link:hover {
  color: #A09AE8;
  border-color: #A09AE8;
}
.dpanel-toggle-arrow { transition: transform 0.2s; display: inline-block; font-size: 13px; }
.dpanel-detail { display: grid; gap: 9px; margin-top: 4px; }
.dpanel-detail[hidden] { display: none; }

/* ─── Page: Frameworks ──────────────────────────────────────── */
#fw-hero { padding: 88px 32px 72px; max-width: 800px; margin: 0 auto; }
.fw-hero-eyebrow { font-size: 11px; font-weight: 500; letter-spacing: 0.14em; color: var(--color-text-tertiary); font-family: var(--font-mono); margin-bottom: 24px; }
.fw-hero-title { font-size: clamp(36px, 6vw, 54px); font-weight: 600; line-height: 1.07; letter-spacing: -0.022em; margin-bottom: 20px; }
.fw-hero-title em { font-style: normal; color: var(--color-text-secondary); }
.fw-hero-body { font-size: 16px; line-height: 1.75; color: var(--color-text-secondary); max-width: 500px; margin-bottom: 32px; }
.fw-hero-links { display: flex; gap: 10px; flex-wrap: wrap; }
.fw-hero-link { font-size: 12px; padding: 7px 16px; border-radius: 999px; border: 0.5px solid var(--color-border-secondary); color: var(--color-text-secondary); text-decoration: none; font-family: var(--font-mono); letter-spacing: 0.06em; transition: color 0.15s, border-color 0.15s; }
.fw-hero-link:hover { color: var(--color-text-primary); border-color: var(--color-border-primary); }

/* ─── Page: Navigation ──────────────────────────────────────── */
.nav-flow { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; margin: 0 0 36px; padding: 20px 22px; background: var(--color-surface-raised); border: 0.5px solid var(--color-border-tertiary); border-radius: var(--border-radius-lg); }
.flow-node { display: flex; flex-direction: column; align-items: center; gap: 6px; padding: 6px 10px; }
.flow-num { width: 24px; height: 24px; border-radius: 50%; background: var(--color-surface-overlay); border: 0.5px solid var(--color-border-secondary); font-size: 10px; font-family: var(--font-mono); font-weight: 500; color: var(--color-text-tertiary); display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.flow-label { font-size: 11px; color: var(--color-text-secondary); white-space: nowrap; font-weight: 500; }
.flow-sep { color: var(--color-text-tertiary); font-size: 13px; padding: 0 2px; }
.principle-list { display: grid; gap: 8px; margin-bottom: 20px; }
.principle-card { padding: 18px 20px; border: 0.5px solid var(--color-border-tertiary); border-radius: var(--border-radius-md); background: var(--color-background-primary); transition: border-color 0.15s; }
.principle-card:hover { border-color: var(--color-border-secondary); }
.prin-num { font-size: 10px; font-weight: 500; letter-spacing: 0.1em; color: var(--color-text-tertiary); font-family: var(--font-mono); text-transform: uppercase; margin-bottom: 5px; }
.prin-title { font-size: 14px; font-weight: 600; margin-bottom: 7px; }
.prin-body { font-size: 13px; line-height: 1.72; color: var(--color-text-secondary); }
.insight-box { margin-top: 16px; border-left: 2px solid var(--color-border-secondary); border-radius: 0 var(--border-radius-md) var(--border-radius-md) 0; padding: 14px 16px; font-size: 13px; line-height: 1.7; color: var(--color-text-secondary); background: var(--color-background-secondary); font-style: italic; }

/* ─── Fragment: Framework Widget (.fw) ───────────────────────── */
.fw { font-family: var(--font-sans); color: var(--color-text-primary); max-width: 660px; padding: .5rem 0 2rem; }
.fw-tabs { display: flex; gap: 2px; margin-bottom: 24px; border-bottom: .5px solid var(--color-border-tertiary); }
.fw-tab { font-size: 13px; padding: 8px 18px; border: none; background: none; color: var(--color-text-secondary); cursor: pointer; border-bottom: 2px solid transparent; margin-bottom: -.5px; font-family: var(--font-sans); transition: color .15s; }
.fw-tab.active { color: var(--color-text-primary); border-bottom-color: var(--color-text-primary); font-weight: 500; }
.fw-tab:hover:not(.active) { color: var(--color-text-primary); }
.fw-sec { display: none; }
.fw-sec.active { display: block; }
.intro { font-size: 14px; line-height: 1.7; color: var(--color-text-secondary); margin: 0 0 20px; }
.layer-grid { display: grid; gap: 8px; }
.layer-card { border: .5px solid var(--color-border-tertiary); border-radius: var(--border-radius-md); padding: 14px 16px; cursor: pointer; transition: background .15s; background: var(--color-background-primary); user-select: none; }
.layer-card:hover { background: var(--color-background-secondary); }
.layer-card.open { border-color: var(--color-border-secondary); }
.lh { display: flex; align-items: center; gap: 12px; }
.ldot { width: 10px; height: 10px; border-radius: 50%; flex-shrink: 0; }
.lt { font-size: 14px; font-weight: 500; flex: 1; }
.ls { font-size: 12px; color: var(--color-text-secondary); }
.lchev { font-size: 14px; color: var(--color-text-tertiary); transition: transform .2s; line-height: 1; }
.layer-card.open .lchev { transform: rotate(90deg); }
.ldet { display: none; margin-top: 12px; padding-top: 12px; border-top: .5px solid var(--color-border-tertiary); font-size: 13px; color: var(--color-text-secondary); line-height: 1.7; }
.layer-card.open .ldet { display: block; }
.lq { margin-top: 10px; font-size: 12px; color: var(--color-text-tertiary); font-style: italic; }
.lq em { color: var(--color-text-secondary); font-style: normal; }
.q-btns { display: grid; grid-template-columns: repeat(5, 1fr); gap: 5px; margin-bottom: 18px; }
.qb { font-size: 11px; padding: 8px 4px; border: .5px solid var(--color-border-tertiary); border-radius: var(--border-radius-md); background: var(--color-background-primary); cursor: pointer; text-align: center; color: var(--color-text-secondary); font-family: var(--font-sans); transition: all .15s; line-height: 1.4; }
.qb.active { border-color: var(--color-border-primary); color: var(--color-text-primary); background: var(--color-background-secondary); font-weight: 500; }
.qb:hover:not(.active) { background: var(--color-background-secondary); }
.qpanel { display: none; }
.qpanel.active { display: block; }
.qi { font-size: 13px; color: var(--color-text-secondary); line-height: 1.7; margin-bottom: 14px; padding: 12px 14px; background: var(--color-background-secondary); border-radius: var(--border-radius-md); }
.qlist { display: grid; gap: 7px; }
.qitem { font-size: 13px; line-height: 1.6; padding: 11px 16px 11px 28px; border: .5px solid var(--color-border-tertiary); border-radius: var(--border-radius-md); color: var(--color-text-primary); background: var(--color-background-primary); position: relative; }
.qitem::before { content: ''; position: absolute; left: 13px; top: 17px; width: 5px; height: 5px; border-radius: 50%; background: var(--color-border-secondary); }
.np { border: .5px solid var(--color-border-tertiary); border-radius: var(--border-radius-md); padding: 16px; margin-bottom: 8px; background: var(--color-background-primary); }
.nn { font-size: 11px; font-weight: 500; color: var(--color-text-tertiary); letter-spacing: .08em; margin-bottom: 4px; }
.nt { font-size: 14px; font-weight: 500; margin-bottom: 6px; }
.nb { font-size: 13px; line-height: 1.7; color: var(--color-text-secondary); }
.sflow { display: flex; gap: 6px; align-items: center; flex-wrap: wrap; margin: 16px 0 20px; }
.spill { font-size: 11px; padding: 5px 11px; border-radius: 999px; border: .5px solid var(--color-border-tertiary); color: var(--color-text-secondary); background: var(--color-background-secondary); }
.sarr { font-size: 11px; color: var(--color-text-tertiary); }
.ibox { border-left: 2px solid var(--color-border-secondary); border-radius: 0 var(--border-radius-md) var(--border-radius-md) 0; padding: 14px 16px; font-size: 13px; line-height: 1.7; color: var(--color-text-secondary); background: var(--color-background-secondary); margin-top: 16px; }

/* ─── Page: Questions ───────────────────────────────────────── */
.q-type-nav { display: grid; grid-template-columns: repeat(5, 1fr); gap: 5px; margin-bottom: 20px; }
.qt-btn { padding: 10px 6px; text-align: center; border: 0.5px solid var(--color-border-tertiary); border-radius: var(--border-radius-md); background: var(--color-background-primary); color: var(--color-text-secondary); font-size: 12px; font-family: var(--font-sans); cursor: pointer; transition: all 0.15s; line-height: 1.35; }
.qt-btn.active { border-color: var(--color-border-primary); color: var(--color-text-primary); background: var(--color-background-secondary); font-weight: 500; }
.qt-btn:hover:not(.active) { background: var(--color-background-secondary); }
.qt-panel { display: none; }
.qt-panel.active { display: block; }
.qt-intro { font-size: 13px; color: var(--color-text-secondary); line-height: 1.7; margin-bottom: 14px; padding: 13px 15px; background: var(--color-background-secondary); border-radius: var(--border-radius-md); }
.q-list { display: grid; gap: 7px; }
.q-item { font-size: 13px; line-height: 1.6; padding: 12px 16px 12px 30px; border: 0.5px solid var(--color-border-tertiary); border-radius: var(--border-radius-md); color: var(--color-text-primary); background: var(--color-background-primary); position: relative; transition: border-color 0.15s, background 0.15s; }
.q-item:hover { border-color: var(--color-border-secondary); background: var(--color-surface-overlay); }
.q-item::before { content: ''; position: absolute; left: 13px; top: 18px; width: 5px; height: 5px; border-radius: 50%; background: var(--color-border-secondary); }

/* ─── Responsive ────────────────────────────────────────────── */
@media (max-width: 680px) {
  .site-nav { padding: 0 16px; }
  .nav-links { display: none; }
  .sub-nav { padding: 0 16px; justify-content: flex-start; }
  #hero, #fw-hero, .wrap, .wrap-wide { padding: 56px 16px; }
  #hero { padding-top: 72px; }
  .hero-headline { font-size: 36px; }
  .fw-grid { grid-template-columns: 1fr; }
  .srow.open .srow-detail { grid-template-columns: 1fr; }
  .d2col { grid-template-columns: 1fr; }
  .row { grid-template-columns: 1fr; }
  .nav-flow { gap: 4px; padding: 14px 16px; }
  .flow-label { font-size: 10px; }
  .q-type-nav { grid-template-columns: repeat(3, 1fr); }
  .site-footer { flex-direction: column; gap: 8px; padding: 20px 16px; }
  .substrate-bg { left: -16px; right: -16px; top: -28px; bottom: -28px; }
  .substrate-panel { padding: 18px; }
}

/* ─── Social Glue Interactive Section ───────────────────────── */
.social-glue-content {
  max-width: 1000px; margin: 40px 0;
  font-family: var(--font-sans);
}
.sg-intro { font-size: 20px; line-height: 1.6; color: var(--color-text-primary); }
.sg-expand-link {
  display: inline-flex; align-items: center; gap: 8px;
  font-weight: 600; color: var(--color-accent); cursor: pointer;
  transition: gap 0.2s ease;
  text-decoration: none;
}
.sg-expand-link:hover { gap: 12px; }
.sg-expand-link .arrow { transition: transform 0.3s ease; display: inline-block; }
.sg-expand-link.open .arrow { transform: rotate(90deg); }

.sg-expandable { overflow: hidden; max-height: 0; opacity: 0; transition: max-height 0.6s ease, opacity 0.4s ease; }
.sg-expandable.open { opacity: 1; }
.sg-expandable-inner { padding: 24px 0; border-left: 1px solid var(--color-border-secondary); padding-left: 24px; margin-left: 4px; }
.sg-expandable-inner p { margin-bottom: 20px; line-height: 1.7; color: var(--color-text-secondary); font-size: 16px; }

.sg-inline-link { color: var(--color-accent); border-bottom: 1px dotted; cursor: pointer; }
.sg-rule { width: 40px; height: 1px; background: var(--color-border-secondary); margin: 32px 0; }
.sg-divider {
  display: flex; align-items: center; gap: 16px;
  margin: 48px 0 32px;
  max-width: 700px;
}
.sg-divider::before,
.sg-divider::after {
  content: ''; flex: 1; height: 0.5px;
  background: var(--color-border-tertiary);
}
.sg-divider span {
  font-size: 13px; font-weight: 500; letter-spacing: 0.1em;
  color: var(--color-text-tertiary); font-family: var(--font-mono);
  white-space: nowrap;
}

/* ─── Section 05: Work with Sys0 ────────────────────────────── */
.commission-section { padding-top: 80px; padding-bottom: 120px; }

.engagement-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--color-border-tertiary);
  border: 0.5px solid var(--color-border-tertiary);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  margin: 48px 0 48px;
}
.engagement-step {
  background: var(--color-surface-raised);
  padding: 28px 28px 32px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: background 0.2s;
}
.engagement-step:hover { background: var(--color-surface-overlay); }
.estep-num {
  font-size: 11px;
  font-family: var(--font-mono);
  font-weight: 500;
  letter-spacing: 0.1em;
  color: var(--color-text-tertiary);
}
.estep-name {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-text-primary);
}
.estep-body {
  font-size: 13px;
  line-height: 1.72;
  color: var(--color-text-secondary);
}

.commission-lower {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 48px;
  align-items: start;
}
.commission-for-label {
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.1em;
  color: var(--color-text-tertiary);
  font-family: var(--font-mono);
  margin-bottom: 16px;
}
.for-grid { display: grid; gap: 10px; }
.for-item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 14px 16px;
  border: 0.5px solid var(--color-border-tertiary);
  border-radius: var(--border-radius-md);
  background: var(--color-surface-raised);
  transition: border-color 0.15s;
}
.for-item:hover { border-color: var(--color-border-secondary); }
.for-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-border-primary);
  flex-shrink: 0;
  margin-top: 6px;
}
.for-text { font-size: 13px; line-height: 1.7; color: var(--color-text-secondary); }

.commission-cta-block {
  position: sticky;
  top: 80px;
  padding: 28px;
  border: 0.5px solid var(--color-border-secondary);
  border-radius: var(--border-radius-lg);
  background: var(--color-surface-raised);
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.engagement-type-pills { display: flex; flex-direction: column; gap: 6px; }
.etype-pill {
  font-size: 12px;
  padding: 6px 12px;
  border-radius: var(--border-radius-md);
  border: 0.5px solid var(--color-border-tertiary);
  color: var(--color-text-secondary);
  background: var(--color-surface-overlay);
}
.commission-cta-body {
  font-size: 13px;
  line-height: 1.7;
  color: var(--color-text-secondary);
  border-top: 0.5px solid var(--color-border-tertiary);
  padding-top: 16px;
}
.commission-cta-btn { display: block; text-align: center; margin-top: 4px; }

.footer-contact {
  color: var(--color-text-tertiary);
  text-decoration: none;
  transition: color 0.15s;
  font-family: var(--font-mono);
  font-size: 12px;
}
.footer-contact:hover { color: var(--color-text-secondary); }

@media (max-width: 900px) {
  .engagement-steps { grid-template-columns: 1fr; }
  .commission-lower { grid-template-columns: 1fr; }
  .commission-cta-block { position: static; }
}
@media (max-width: 680px) {
  .commission-section { padding-bottom: 80px; }
  .engagement-step { padding: 22px 20px 26px; }
  .commission-cta-block { padding: 20px; }
}