/* Framework Page — Section Styles */

/* ============================
   FW BLOCKS
   ============================ */
.fw-block {
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
}

.fw-heading {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 400;
  color: var(--text-primary);
  margin-bottom: 1rem;
}

.fw-narrative {
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--text-secondary);
  max-width: 65ch;
}

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

.fw-narrative em {
  color: var(--accent-light);
  font-style: italic;
}

/* ============================
   DECOMPOSITION VISUAL
   ============================ */
.fw-decomp-visual {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 2rem;
  margin-top: 1.5rem;
  align-items: start;
}

@media (max-width: 768px) {
  .fw-decomp-visual {
    grid-template-columns: 1fr;
  }
}

.fw-matrix-demo {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
}

.fw-matrix-demo canvas {
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg-primary);
}

.fw-matrix-caption {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--text-dim);
  letter-spacing: 0.04em;
}

.fw-decomp-explain {
  display: flex;
  flex-direction: column;
}

/* ============================
   TERM DEFINITIONS
   ============================ */
.fw-terms {
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
  margin-top: 1.2rem;
}

.fw-term {
  display: grid;
  grid-template-columns: 2.5rem 1fr;
  gap: 0.8rem;
  align-items: start;
  padding: 0.8rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 4px;
}

.fw-term-symbol {
  font-family: var(--font-mono);
  font-size: 1.3rem;
  font-weight: 500;
  color: var(--accent);
  text-align: center;
  padding-top: 0.1rem;
}

.fw-term strong {
  color: var(--text-primary);
  font-weight: 500;
  display: block;
  margin-bottom: 0.2rem;
  font-size: 0.9rem;
}

.fw-term div {
  font-size: 0.85rem;
  line-height: 1.55;
  color: var(--text-secondary);
}

/* ============================
   IC INTRO + SCALE
   ============================ */
.fw-ic-intro {
  margin-top: 1.5rem;
}

.fw-ic-scale {
  margin-top: 1rem;
}

.fw-ic-endpoints {
  display: flex;
  justify-content: space-between;
  margin-bottom: 0.8rem;
}

.fw-ic-endpoints span {
  font-size: 0.82rem;
  line-height: 1.5;
  color: var(--text-secondary);
}

.fw-ic-endpoints strong {
  font-family: var(--font-mono);
  color: var(--accent-light);
  font-weight: 500;
  display: block;
  margin-bottom: 0.15rem;
}

/* ============================
   IC PROPERTIES
   ============================ */
.fw-ic-properties {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-top: 2rem;
}

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

.fw-property {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 1.2rem;
}

.fw-property h4 {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--accent);
  margin-bottom: 0.6rem;
  letter-spacing: 0.02em;
}

.fw-property p {
  font-size: 0.84rem;
  line-height: 1.55;
  color: var(--text-secondary);
}

.fw-property em {
  color: var(--accent-light);
}

/* ============================
   CC LAYOUT
   ============================ */
.fw-cc-layout {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 2rem;
  margin-top: 1.5rem;
  align-items: start;
}

@media (max-width: 768px) {
  .fw-cc-layout {
    grid-template-columns: 1fr;
  }
}

.fw-cc-identity {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent-dim);
  border-radius: 0 4px 4px 0;
  padding: 1rem 1.2rem;
  margin-top: 1rem;
  font-family: var(--font-mono);
  font-size: 0.95rem;
  color: var(--accent-light);
}

.fw-cc-identity .label {
  font-family: var(--font-body);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 0.4rem;
  display: block;
}

.fw-cc-contrast {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  padding: 1.2rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 6px;
}

.fw-contrast-item {
  font-size: 0.88rem;
  line-height: 1.5;
  color: var(--text-secondary);
  padding: 0.6rem 0;
  border-bottom: 1px solid var(--border);
}

.fw-contrast-item:last-of-type {
  border-bottom: none;
}

.fw-contrast-item strong {
  color: var(--text-primary);
  font-weight: 500;
}

.fw-contrast-item em {
  color: var(--accent-light);
}

.fw-contrast-note {
  font-size: 0.78rem;
  line-height: 1.5;
  color: var(--text-dim);
  padding-top: 0.6rem;
  border-top: 1px solid var(--border);
}

.fw-contrast-note em {
  color: var(--text-secondary);
}

/* ============================
   ASYMMETRY NOTE
   ============================ */
.fw-asymmetry-note {
  margin-top: 1.5rem;
  padding: 1.2rem 1.5rem;
  background: var(--bg-card);
  border: 1px solid var(--accent-dim);
  border-radius: 6px;
}

.fw-asymmetry-note p {
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--text-secondary);
}

.fw-asymmetry-note strong {
  color: var(--accent-light);
  font-weight: 600;
}

/* ============================
   CONTEXT CARD EXTRAS
   ============================ */
.context-example {
  font-size: 0.78rem;
  color: var(--text-dim);
  font-style: italic;
  margin-bottom: 0.8rem;
  padding: 0.4rem 0.6rem;
  border-left: 2px solid var(--border);
}

.context-rule-explain {
  font-size: 0.78rem;
  color: var(--text-secondary);
  font-weight: 400;
  display: block;
  margin-top: 0.2rem;
}

/* ============================
   EQUATION BLOCK VARIANT
   ============================ */
.equation-block.small {
  padding: 0.8rem 1.2rem;
  margin: 0.8rem 0;
  font-size: 0.88rem;
}

/* ============================
   COPLEXITY DEMO
   ============================ */
.coplexity-demo {
  margin-top: 1.5rem;
}

.bool-selector {
  display: flex;
  gap: 0.4rem;
  margin-bottom: 1.2rem;
}

.bool-btn {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  padding: 0.5rem 1.2rem;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--bg-card);
  color: var(--text-secondary);
  cursor: pointer;
  transition: border-color 0.2s, color 0.2s, background 0.2s;
}

.bool-btn:hover {
  border-color: var(--accent-dim);
  color: var(--accent);
}

.bool-btn.active {
  border-color: var(--accent);
  color: var(--accent-light);
  background: var(--bg-secondary);
}

.bool-display {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 1.5rem;
  align-items: start;
}

@media (max-width: 768px) {
  .bool-display {
    grid-template-columns: 1fr;
  }
}

/* Truth table */
.bool-truth-table {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.8rem;
  min-width: 140px;
}

.bool-table-header {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 0;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 500;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding-bottom: 0.4rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: 0.3rem;
}

.bool-row {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 0;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  padding: 0.3rem 0;
  color: var(--text-secondary);
}

.bool-output {
  color: var(--accent-light);
  font-weight: 500;
}

/* Metric bars */
.bool-metrics {
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
  min-width: 200px;
}

.bool-metric {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.bool-metric-label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.bool-metric-bar {
  height: 8px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 4px;
  overflow: hidden;
}

.bool-metric-fill {
  height: 100%;
  background: var(--accent);
  border-radius: 3px;
  transition: width 0.4s ease;
}

.bool-metric-fill.ic3 {
  background: var(--green);
}

.bool-metric-val {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--accent-light);
  font-weight: 500;
}

.bool-verdict {
  font-size: 0.82rem;
  line-height: 1.55;
  color: var(--text-secondary);
  padding: 0.8rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent-dim);
  border-radius: 0 4px 4px 0;
  margin-top: 0.4rem;
}

/* Node graph visual */
.bool-visual {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.4rem;
}

.bool-visual canvas {
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg-primary);
}

.bool-visual-caption {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--text-dim);
  letter-spacing: 0.04em;
  text-align: center;
}

/* ============================
   CORRESPONDENCE TABLE
   ============================ */
.coplexity-correspondence {
  display: flex;
  align-items: stretch;
  gap: 0;
  margin-top: 1.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 6px;
  overflow: hidden;
  max-width: 500px;
}

.corr-column {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.corr-header {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-dim);
  padding: 0.7rem 1rem;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
}

.corr-item {
  padding: 0.6rem 1rem;
  font-size: 0.85rem;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border);
}

.corr-item:last-child {
  border-bottom: none;
}

.corr-arrows {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-end;
  width: 3rem;
  background: var(--bg-secondary);
  border-left: 1px solid var(--border);
  border-right: 1px solid var(--border);
}

.corr-arrow {
  padding: 0.6rem 0;
  font-size: 1rem;
  color: var(--accent);
  border-bottom: 1px solid var(--border);
  width: 100%;
  text-align: center;
}

.corr-arrow:first-child {
  padding-top: calc(0.6rem + 0.7rem + 0.68rem + 1px);
}

.corr-arrow:last-child {
  border-bottom: none;
}

/* ============================
   GEOMETRY DEMO
   ============================ */
.geom-demo-layout {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 2rem;
  margin-top: 1.5rem;
  align-items: start;
}

@media (max-width: 768px) {
  .geom-demo-layout {
    grid-template-columns: 1fr;
  }
}

.geom-canvas-wrap {
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg-primary);
}

.geom-canvas-wrap canvas {
  display: block;
  max-width: 100%;
  height: auto;
}

.geom-insights {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.geom-insight {
  padding: 1rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 6px;
}

.geom-insight-header {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--accent);
  margin-bottom: 0.5rem;
  letter-spacing: 0.02em;
}

.geom-insight p {
  font-size: 0.82rem;
  line-height: 1.55;
  color: var(--text-secondary);
}

/* ============================
   GEOMETRY IDENTITIES
   ============================ */
.geom-identities-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-top: 1.5rem;
}

@media (max-width: 768px) {
  .geom-identities-layout {
    grid-template-columns: 1fr;
  }
}

.geom-identity-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.2rem;
}

.geom-identity-card .equation-block.small {
  border: none;
  border-left: 3px solid var(--accent-dim);
  border-radius: 0;
  margin: 0;
  background: transparent;
}

.geom-identity-explain {
  font-size: 0.8rem;
  line-height: 1.5;
  color: var(--text-secondary);
  padding: 0 1rem 1rem;
}

/* ============================
   GEOMETRY CONSTANTS
   ============================ */
.geom-constants {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  margin-top: 1.5rem;
}

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

@media (max-width: 500px) {
  .geom-constants {
    grid-template-columns: 1fr;
  }
}

.geom-constant {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 1.2rem;
  text-align: center;
}

.geom-const-val {
  font-family: var(--font-mono);
  font-size: 1.4rem;
  font-weight: 500;
  color: var(--accent-light);
  margin-bottom: 0.3rem;
}

.geom-const-name {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--accent);
  margin-bottom: 0.6rem;
}

.geom-const-desc {
  font-size: 0.78rem;
  line-height: 1.5;
  color: var(--text-secondary);
  text-align: left;
}

/* ============================
   EVIDENCE CHARTS
   ============================ */
.evidence-chart-wrap {
  margin-top: 1.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.6rem;
}

.evidence-chart-wrap canvas {
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg-primary);
  max-width: 100%;
  height: auto;
}

.evidence-chart-note {
  font-size: 0.75rem;
  line-height: 1.5;
  color: var(--text-dim);
  max-width: 55ch;
  text-align: center;
}

@media (max-width: 700px) {
  .evidence-chart-wrap[style*="grid-template-columns"] {
    grid-template-columns: 1fr !important;
  }
}

@media (max-width: 500px) {
  .evidence-chart-wrap canvas {
    width: 100%;
  }
}

/* ============================
   STQA TABLE
   ============================ */
.stqa-table {
  margin-top: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}

.stqa-row {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 0.8rem 1rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 4px;
  font-size: 0.88rem;
  line-height: 1.5;
  color: var(--text-secondary);
}

.stqa-row .stqa-badge {
  flex-shrink: 0;
  margin-left: 0;
  margin-top: 0.15rem;
  font-size: 0.7rem;
  padding: 0.2rem 0.5rem;
}

.stqa-row strong {
  color: var(--text-primary);
}