/* pb-visuals.css — playbook animated visual system
 * Scroll-triggered reveals. Paper warmth, editorial restraint.
 * Five treatment types: script · pipeline · data-portrait · arch · quadrant
 * Palette: paper #F5F0E8  ink #1C1917  ink-2 #57534E  sienna #92400E
 *          sage #4A5E4A  slate #475569  danger #991B1B  sep #D6CFC4
 */

/* ── Container ─────────────────────────────────────────────────────────── */
.pbv {
  background: #F5F0E8;
  border: 1px solid #D6CFC4;
  border-radius: 3px;
  margin: 36px 0 48px;
  padding: 28px 32px 24px;
  font-family: 'Inter', system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
  position: relative;
  overflow: hidden;
  max-width: 880px;
}

/* ── Header ─────────────────────────────────────────────────────────────── */
.pbv-eyebrow {
  display: block;
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: #92400E;
  margin-bottom: 6px;
}

.pbv-vis-title {
  font-family: 'Newsreader', Georgia, serif;
  font-size: 20px;
  font-weight: 700;
  font-style: italic;
  color: #1C1917;
  margin: 0 0 22px;
  line-height: 1.2;
}

/* ── Footer ─────────────────────────────────────────────────────────────── */
.pbv-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 20px;
  padding-top: 14px;
  border-top: 1px solid #D6CFC4;
  font-size: 9px;
  color: #57534E;
  letter-spacing: 0.04em;
}


/* ══════════════════════════════════════════════════════════════════════════
   ANNOTATED SCRIPT
   ══════════════════════════════════════════════════════════════════════════ */
.pbv-exchanges {
  display: flex;
  flex-direction: column;
}

.pbv-exchange {
  display: grid;
  grid-template-columns: 24px 1fr 140px;
  gap: 0 16px;
  padding: 14px 0;
  border-bottom: 1px solid #D6CFC4;
  align-items: start;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.45s ease, transform 0.45s ease;
  transition-delay: calc(var(--delay, 0) * 0.22s);
}

.pbv-exchange:last-child { border-bottom: none; }

.pbv.is-visible .pbv-exchange {
  opacity: 1;
  transform: none;
}

.pbv-exchange-num {
  font-family: 'JetBrains Mono', 'Space Mono', monospace;
  font-size: 10px;
  color: #57534E;
  padding-top: 2px;
  line-height: 1;
}

.pbv-exchange-body {
  display: flex;
  flex-direction: column;
  gap: 7px;
}

.pbv-exchange-line {
  font-size: 12.5px;
  color: #1C1917;
  line-height: 1.5;
}

.pbv-exchange-line.pbv-you {
  font-style: italic;
  color: #92400E;
}

.pbv-technique {
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: #92400E;
  border-left: 2px solid #92400E;
  padding-left: 10px;
  align-self: center;
  opacity: 0;
  transform: translateX(6px);
  transition: opacity 0.3s, transform 0.3s;
  transition-delay: calc(var(--delay, 0) * 0.22s + 0.28s);
}

.pbv.is-visible .pbv-technique {
  opacity: 1;
  transform: none;
}

@media (max-width: 600px) {
  .pbv-exchange { grid-template-columns: 20px 1fr; }
  .pbv-technique { display: none; }
}


/* ══════════════════════════════════════════════════════════════════════════
   ANNOTATED PIPELINE
   ══════════════════════════════════════════════════════════════════════════ */
.pbv-pipeline-inner {
  position: relative;
  padding-left: 28px;
}

.pbv-spine {
  position: absolute;
  left: 4px;
  top: 16px;
  bottom: 16px;
  width: 2px;
  background: #E8E3D8;
  overflow: hidden;
}

.pbv-spine::after {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 0;
  background: #92400E;
  transition: height 1.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.pbv.is-visible .pbv-spine::after { height: 100%; }

.pbv-step {
  display: grid;
  grid-template-columns: 28px 1fr;
  gap: 0 14px;
  padding: 13px 0;
  border-bottom: 1px solid #D6CFC4;
  position: relative;
  opacity: 0;
  transform: translateX(-5px);
  transition: opacity 0.38s, transform 0.38s;
  transition-delay: calc(var(--step, 0) * 0.11s + 0.25s);
}

.pbv-step:last-child { border-bottom: none; }

.pbv.is-visible .pbv-step {
  opacity: 1;
  transform: none;
}

.pbv-step-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: #92400E;
  position: absolute;
  left: -23px;
  top: 17px;
  scale: 0;
  transition: scale 0.28s cubic-bezier(0.16, 1, 0.3, 1);
  transition-delay: calc(var(--step, 0) * 0.11s + 0.18s);
}

.pbv.is-visible .pbv-step-dot { scale: 1; }

.pbv-step-num {
  font-family: 'JetBrains Mono', 'Space Mono', monospace;
  font-size: 9px;
  color: #57534E;
  padding-top: 3px;
  line-height: 1;
}

.pbv-step-name {
  font-size: 12.5px;
  font-weight: 600;
  color: #1C1917;
  margin: 0 0 3px;
  line-height: 1.3;
}

.pbv-step-note {
  font-size: 10.5px;
  font-style: italic;
  color: #57534E;
  margin: 0;
  line-height: 1.4;
}

.pbv-pipeline-more {
  margin-top: 16px;
  font-size: 10px;
  font-weight: 600;
  color: #92400E;
  letter-spacing: 0.04em;
  opacity: 0;
  transition: opacity 0.4s;
  transition-delay: 0.9s;
}

.pbv.is-visible .pbv-pipeline-more { opacity: 1; }


/* ══════════════════════════════════════════════════════════════════════════
   DATA PORTRAIT (bars + optional curve)
   ══════════════════════════════════════════════════════════════════════════ */
.pbv-portrait-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  align-items: start;
}

@media (max-width: 640px) {
  .pbv-portrait-layout { grid-template-columns: 1fr; }
}

.pbv-bars { display: flex; flex-direction: column; gap: 18px; }

.pbv-bar-row { display: flex; flex-direction: column; gap: 5px; }

.pbv-bar-label {
  font-size: 11px;
  font-weight: 600;
  color: #1C1917;
}

.pbv-bar-track {
  position: relative;
  height: 22px;
  background: #E8E3D8;
  border-radius: 2px;
  overflow: hidden;
}

.pbv-bar-fill {
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 0;
  background: var(--bar-color, #92400E);
  transition: width 0.9s cubic-bezier(0.16, 1, 0.3, 1);
  transition-delay: calc(var(--bi, 0) * 0.14s + 0.2s);
}

.pbv.is-visible .pbv-bar-fill { width: var(--bar-pct, 0%); }

.pbv-bar-value {
  font-size: 13px;
  font-weight: 700;
  color: var(--bar-color, #92400E);
}

.pbv-bar-note {
  font-size: 10px;
  font-style: italic;
  color: #57534E;
}

/* Demand curve section */
.pbv-curve-section { position: relative; }

.pbv-curve-label {
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #92400E;
  margin-bottom: 8px;
}

.pbv-curve-svg { width: 100%; overflow: visible; }

.pbv-curve-svg .demand-line {
  stroke-dasharray: 900;
  stroke-dashoffset: 900;
  transition: stroke-dashoffset 1.6s ease;
  transition-delay: 0.5s;
}

.pbv.is-visible .pbv-curve-svg .demand-line { stroke-dashoffset: 0; }

.pbv-curve-anno {
  font-size: 10px;
  fill: #57534E;
  font-style: italic;
  font-family: 'Inter', sans-serif;
}

.pbv-curve-marker-label {
  font-size: 9px;
  font-weight: 600;
  font-family: 'Inter', sans-serif;
}


/* ══════════════════════════════════════════════════════════════════════════
   ARCHITECTURAL DIAGRAM (3–4 columns)
   ══════════════════════════════════════════════════════════════════════════ */
.pbv-arch-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: #D6CFC4;
  border: 1px solid #D6CFC4;
  border-radius: 2px;
  overflow: hidden;
}

.pbv-arch-grid.cols-2 { grid-template-columns: repeat(2, 1fr); }
.pbv-arch-grid.cols-4 { grid-template-columns: repeat(4, 1fr); }

.pbv-arch-col {
  background: #F5F0E8;
  padding: 18px 14px;
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.5s, transform 0.5s;
  transition-delay: calc(var(--col, 0) * 0.18s + 0.1s);
}

.pbv.is-visible .pbv-arch-col {
  opacity: 1;
  transform: none;
}

.pbv-arch-col-head {
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #92400E;
  padding-bottom: 10px;
  margin-bottom: 12px;
  border-bottom: 2px solid #92400E;
}

.pbv-arch-col-sub {
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #57534E;
  margin-bottom: 6px;
  opacity: 0.7;
}

.pbv-arch-items { display: flex; flex-direction: column; gap: 7px; }

.pbv-arch-item {
  font-size: 11.5px;
  color: #1C1917;
  line-height: 1.4;
}

.pbv-arch-item em {
  display: block;
  font-size: 10px;
  color: #57534E;
  font-style: italic;
  margin-top: 2px;
}

@media (max-width: 580px) {
  .pbv-arch-grid,
  .pbv-arch-grid.cols-2,
  .pbv-arch-grid.cols-4 { grid-template-columns: 1fr; }
}


/* ══════════════════════════════════════════════════════════════════════════
   CLASSICAL QUADRANT
   ══════════════════════════════════════════════════════════════════════════ */
.pbv-quadrant-wrap {
  position: relative;
  max-width: 540px;
}

.pbv-quadrant-svg { width: 100%; overflow: visible; }

.pbv-quadrant-svg text {
  font-family: 'Inter', sans-serif;
}

.pbv-q-zone {
  opacity: 0;
  transition: opacity 0.5s;
}

.pbv-q-zone:nth-child(1) { transition-delay: 0.3s; }
.pbv-q-zone:nth-child(2) { transition-delay: 0.45s; }
.pbv-q-zone:nth-child(3) { transition-delay: 0.6s; }
.pbv-q-zone:nth-child(4) { transition-delay: 0.75s; }

.pbv.is-visible .pbv-q-zone { opacity: 1; }

.pbv-q-axes {
  opacity: 0;
  transition: opacity 0.4s;
  transition-delay: 0.1s;
}

.pbv.is-visible .pbv-q-axes { opacity: 1; }


/* ══════════════════════════════════════════════════════════════════════════
   FAILURE TAXONOMY (secondary visual, embedded in flow)
   ══════════════════════════════════════════════════════════════════════════ */
.pbv-failures { display: flex; flex-direction: column; gap: 7px; }

.pbv-fail {
  display: flex;
  align-items: baseline;
  gap: 10px;
  opacity: 0;
  transform: translateX(-4px);
  transition: opacity 0.3s, transform 0.3s;
  transition-delay: calc(var(--fi, 0) * 0.08s);
}

.pbv.is-visible .pbv-fail { opacity: 1; transform: none; }

.pbv-fail-dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: #991B1B;
  flex-shrink: 0;
  margin-top: 6px;
}

.pbv-fail-text { font-size: 11.5px; color: #1C1917; line-height: 1.4; }
.pbv-fail-text strong { color: #991B1B; font-weight: 600; }

/* Divider between two stacked visuals */
.pbv-section-divider {
  height: 1px;
  background: #D6CFC4;
  margin: 22px 0;
}


/* ── Reduced motion ─────────────────────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  .pbv-exchange, .pbv-technique, .pbv-step, .pbv-arch-col,
  .pbv-fail, .pbv-pipeline-more, .pbv-q-zone, .pbv-q-axes {
    transition: none !important;
    opacity: 1 !important;
    transform: none !important;
  }
  .pbv-step-dot { scale: 1 !important; transition: none !important; }
  .pbv-bar-fill { width: var(--bar-pct, 0%) !important; transition: none !important; }
  .pbv-spine::after { height: 100% !important; transition: none !important; }
  .pbv-curve-svg .demand-line { stroke-dashoffset: 0 !important; transition: none !important; }
}