/* =========================================================
   THE CIRCUIT IN YOUR HEAD — interactive exhibit
   Two parts: a short intro animation, then a game.
   Minimal words; everything else is visual.
   ========================================================= */

:root {
  --cortex:        #9FB2D4;
  --cortex-deep:   #5a6fa0;
  --cortex-soft:   #DDE4F2;
  --limbic:        #F4A6B5;
  --limbic-deep:   #a85e6a;
  --limbic-soft:   #FBD5D9;
  --brainstem:     #9CC09A;
  --brainstem-deep:#5a7a5a;
  --brainstem-soft:#D8EAD7;
  --gold:          #F4C25A;
  --gold-soft:     #FFEDC0;
  --heart-red:     #E15F5F;
  --cream:         #FFF9F0;
  --paper:         #FDF6E8;
  --ink:           #38353a;
  --ink-soft:      #6c6770;
  --ink-light:     #aaa39e;
  --serif:         "Cormorant Garamond", "Georgia", serif;
  --sans:          "Nunito", system-ui, -apple-system, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  font-family: var(--sans);
  color: var(--ink);
  background: var(--cream);
  -webkit-font-smoothing: antialiased;
  line-height: 1.55;
  scroll-behavior: smooth;
}

/* ====================== TOOLBAR (fixed top-right) ====================== */
.page-toolbar {
  position: fixed;
  top: 16px;
  right: 16px;
  z-index: 90;
  display: flex;
  gap: 8px;
}
.tool-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255, 249, 240, 0.92);
  border: 1.5px solid #ece2cd;
  border-radius: 999px;
  padding: 7px 14px 7px 12px;
  font-family: var(--sans);
  font-size: 12px;
  font-weight: 700;
  color: var(--ink);
  cursor: pointer;
  box-shadow: 0 3px 10px rgba(0, 0, 0, 0.08);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transition: background 0.2s, transform 0.15s, border-color 0.2s;
}
.tool-btn:hover { background: white; border-color: var(--gold); transform: translateY(-1px); }
.tool-btn[aria-pressed="true"],
.tool-btn.on {
  background: var(--gold-soft);
  border-color: var(--gold);
  color: var(--ink);
}
.tool-icon { font-size: 14px; line-height: 1; }
.tool-label { letter-spacing: 0.04em; }

@media (max-width: 640px) {
  .tool-label { display: none; }
  .tool-btn { padding: 8px 10px; }
}

/* ====================== CAMERA PREVIEW (fixed bottom-right) ====================== */
.camera-preview {
  position: fixed;
  bottom: 16px;
  right: 16px;
  z-index: 95;
  background: white;
  border: 1.5px solid var(--gold);
  border-radius: 16px;
  padding: 10px 12px 10px 10px;
  display: none;
  align-items: center;
  gap: 12px;
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.18);
  max-width: 320px;
}
.camera-preview[aria-hidden="false"] { display: flex; }
.camera-preview.error { border-color: var(--heart-red); }
.camera-video {
  width: 64px;
  height: 64px;
  border-radius: 8px;
  object-fit: cover;
  background: #222;
  transform: scaleX(-1); /* mirror — feels more natural */
}
.camera-preview.error .camera-video { display: none; }
.camera-readout {
  display: flex;
  flex-direction: column;
  gap: 1px;
}
.readout-label {
  font-family: var(--sans);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-soft);
}
.readout-value {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 28px;
  color: var(--heart-red);
  line-height: 1;
  display: flex;
  align-items: baseline;
  gap: 4px;
}
.readout-unit {
  font-family: var(--sans);
  font-size: 11px;
  font-weight: 700;
  color: var(--ink-soft);
}
.readout-hint {
  font-family: var(--sans);
  font-size: 10px;
  font-weight: 600;
  color: var(--ink-soft);
  font-style: italic;
}
.readout-note {
  font-family: var(--sans);
  font-size: 9px;
  font-weight: 700;
  color: var(--ink-light);
}
.camera-close {
  background: transparent;
  border: none;
  font-size: 20px;
  line-height: 1;
  cursor: pointer;
  color: var(--ink-soft);
  padding: 4px 6px;
}
.camera-close:hover { color: var(--ink); }

@media (max-width: 640px) {
  .camera-preview { bottom: 8px; right: 8px; }
  .camera-video { width: 52px; height: 52px; }
  .readout-value { font-size: 22px; }
}

/* ====================== HERO ====================== */
.hero {
  min-height: 70vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 60px 24px;
  background:
    radial-gradient(ellipse at 20% 30%, rgba(244, 166, 181, 0.25), transparent 55%),
    radial-gradient(ellipse at 80% 70%, rgba(156, 192, 154, 0.25), transparent 55%),
    linear-gradient(180deg, #FFF9F0 0%, #FDF0E2 100%);
}
.kicker {
  font-family: var(--sans);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin: 0 0 22px;
}
.kicker::before { content: "✦  "; color: var(--gold); }
.kicker::after  { content: "  ✦"; color: var(--gold); }
.hero h1 {
  font-family: var(--serif);
  font-weight: 600;
  font-size: clamp(56px, 9vw, 110px);
  margin: 0 0 18px;
  line-height: 1;
  color: var(--ink);
  letter-spacing: -0.01em;
}
.hero h1 em {
  font-style: italic;
  font-weight: 500;
  color: var(--limbic);
}
.hero-sub {
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(20px, 2.2vw, 26px);
  color: var(--ink);
  margin: 0 0 36px;
  max-width: 680px;
}
.hero-cta {
  display: inline-block;
  padding: 14px 32px;
  border-radius: 999px;
  background: var(--ink);
  color: var(--cream);
  font-family: var(--sans);
  font-size: 16px;
  font-weight: 700;
  text-decoration: none;
  letter-spacing: 0.04em;
  transition: transform 0.2s, background 0.2s;
  box-shadow: 0 4px 0 #1c191e;
}
.hero-cta:hover { background: #1c191e; transform: translateY(-2px); }
.hero-cta:active { transform: translateY(2px); box-shadow: 0 1px 0 #1c191e; }

/* ====================== PARTS ====================== */
.part {
  padding: clamp(60px, 9vw, 110px) clamp(20px, 5vw, 56px);
  max-width: 1180px;
  margin: 0 auto;
}
.part-head {
  text-align: center;
  margin-bottom: 36px;
}
.part-num {
  display: inline-block;
  font-family: var(--sans);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin-bottom: 12px;
}
.part-num::before { content: "✦  "; color: var(--gold); }
.part-num::after  { content: "  ✦"; color: var(--gold); }
.part-head h2 {
  font-family: var(--serif);
  font-weight: 600;
  font-size: clamp(40px, 5.6vw, 64px);
  margin: 0 0 14px;
  line-height: 1.05;
  color: var(--ink);
}
.part-head h2 em { font-style: italic; color: var(--limbic); }
.part-note {
  font-family: var(--sans);
  font-size: 13px;
  font-weight: 700;
  color: var(--ink-soft);
  margin: -2px auto 12px;
}
.part-sub {
  font-family: var(--serif);
  font-style: italic;
  font-size: clamp(17px, 1.8vw, 21px);
  color: var(--ink);
  max-width: 720px;
  margin: 0 auto;
  line-height: 1.5;
}
.part-sub strong {
  font-style: normal;
  font-family: var(--sans);
  font-weight: 700;
  background: transparent;
  padding: 0;
  border-radius: 0;
}

/* ====================== PART 1 — INTRO ANIMATION ====================== */
.intro-stage {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 24px;
  align-items: stretch;
  background: var(--paper);
  border: 1px solid rgba(236, 226, 205, 0.72);
  border-radius: 18px;
  padding: 24px 24px 22px;
  position: relative;
  min-height: 290px;
}
@media (max-width: 880px) {
  .intro-stage { grid-template-columns: 1fr; gap: 16px; }
}

.intro-scene {
  position: relative;
  height: 270px;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  overflow: hidden;
  border-radius: 14px;
  background:
    linear-gradient(180deg, #fdf3df 0%, #f5e2c2 100%);
}
.ground {
  position: absolute;
  bottom: 0;
  left: -5%;
  right: -5%;
  height: 36px;
  background:
    repeating-linear-gradient(90deg,
      transparent 0,
      transparent 36px,
      rgba(0, 0, 0, 0.06) 36px,
      rgba(0, 0, 0, 0.06) 38px),
    linear-gradient(180deg, #c89a72 0%, #a88058 100%);
  background-size: 76px 100%, 100% 100%;
  border-top: 3px solid #8d6840;
}
/* The floor stays fixed; the kid supplies the forward motion. */
@keyframes groundScroll {
  from { background-position: 0 0, 0 0; }
  to   { background-position: -76px 0, 0 0; }
}
.kid-wrap {
  position: relative;
  bottom: 16px;
  width: 110px;
  transform-origin: 50% 100%;
}
.kid-svg { width: 100%; height: auto; overflow: visible; }

/* Each limb pivots from its top (shoulder for arms, hip for legs).
   fill-box puts the transform-origin in each limb's own bounding box. */
.kid-limb {
  transform-box: fill-box;
  transform-origin: 50% 0%;
  transition: transform 0.5s cubic-bezier(0.3, 0, 0.5, 1);
}
.kid-body, .kid-head {
  transform-box: fill-box;
  transform-origin: 50% 100%;
  transition: transform 0.5s ease;
}

/* ============== STATE: RUNNING ==============
   The banana stays planted on the floor. The kid walks toward it while
   legs, arms, and torso keep a running cycle. */
body[data-intro="run"] .kid-wrap      { animation: kidApproachBanana 1.28s linear both; }
body[data-intro="run"] .kid-leg-front { animation: legCycleA 0.5s linear infinite; }
body[data-intro="run"] .kid-leg-back  { animation: legCycleB 0.5s linear infinite; }
body[data-intro="run"] .kid-arm-front { animation: armCycleB 0.5s linear infinite; }
body[data-intro="run"] .kid-arm-back  { animation: armCycleA 0.5s linear infinite; }
body[data-intro="run"] .kid-body      { animation: torsoBob   0.5s linear infinite; }
body[data-intro="run"] .kid-head      { animation: torsoBob   0.5s linear infinite; }
@keyframes kidApproachBanana {
  from { transform: translateX(-118px); }
  to   { transform: translateX(0); }
}
@keyframes legCycleA {
  0%   { transform: rotate(22deg); }                    /* foot forward */
  25%  { transform: rotate(8deg)  translateY(-1px); }   /* foot lifting (mid-stride) */
  50%  { transform: rotate(-22deg); }                   /* foot back */
  75%  { transform: rotate(-6deg) translateY(0); }      /* coming forward */
  100% { transform: rotate(22deg); }
}
@keyframes legCycleB {
  0%   { transform: rotate(-22deg); }
  25%  { transform: rotate(-6deg) translateY(0); }
  50%  { transform: rotate(22deg); }
  75%  { transform: rotate(8deg) translateY(-1px); }
  100% { transform: rotate(-22deg); }
}
@keyframes armCycleA {
  0%   { transform: rotate(-18deg); }
  50%  { transform: rotate(18deg); }
  100% { transform: rotate(-18deg); }
}
@keyframes armCycleB {
  0%   { transform: rotate(18deg); }
  50%  { transform: rotate(-18deg); }
  100% { transform: rotate(18deg); }
}
@keyframes torsoBob {
  0%, 50%, 100% { transform: translateY(-1px); }
  25%, 75%      { transform: translateY(1px); }
}

/* ============== STATE: TRIP / STUMBLE ==============
   Kid catches a toe on the banana and *dramatically* lurches — arms
   windmill, slipped foot kicks up, briefly airborne — then wobbles
   twice before settling into a shaky forward lean. He does NOT go to
   the ground. Each limb gets its own keyframe animation so the flail
   peaks bigger than the settled pose. */
body[data-intro="trip"] .kid-wrap     { animation: tripFall      0.78s cubic-bezier(0.32, 0, 0.58, 1) forwards; }
body[data-intro="trip"] .kid-arm-front { animation: armFlailFront 0.78s cubic-bezier(0.3,  0.5, 0.5, 1) forwards; }
body[data-intro="trip"] .kid-arm-back  { animation: armFlailBack  0.78s cubic-bezier(0.3,  0.5, 0.5, 1) forwards; }
body[data-intro="trip"] .kid-leg-front { animation: legKickUp     0.78s cubic-bezier(0.3,  0.5, 0.5, 1) forwards; }
body[data-intro="trip"] .kid-leg-back  { transform: rotate(12deg); }    /* planted */
body[data-intro="trip"] .kid-body      { transform: rotate(4deg); }     /* forward lean */
body[data-intro="trip"] .kid-head      { transform: rotate(-8deg); }    /* head back, eyes wide */

@keyframes tripFall {
  0%   { transform: translateX(0)    translateY(0)   rotate(0deg); }
  10%  { transform: translateX(-2px) translateY(-3px) rotate(-8deg); }  /* anticipation: rock back */
  28%  { transform: translateX(5px)  translateY(-10px) rotate(30deg); } /* PEAK lurch, briefly airborne */
  46%  { transform: translateX(0)    translateY(-3px) rotate(4deg); }   /* hard wobble back */
  64%  { transform: translateX(5px)  translateY(-1px) rotate(22deg); }  /* wobble forward again */
  82%  { transform: translateX(2px)  translateY(0)   rotate(8deg); }    /* smaller back */
  100% { transform: translateX(3px)  translateY(0)   rotate(13deg); }   /* settled shaky lean */
}

@keyframes armFlailFront {
  0%   { transform: rotate(0deg); }
  28%  { transform: rotate(-100deg); }   /* peak: arm flung way up */
  55%  { transform: rotate(-30deg); }
  78%  { transform: rotate(-72deg); }    /* second flail */
  100% { transform: rotate(-58deg); }    /* settled out for balance */
}

@keyframes armFlailBack {
  0%   { transform: rotate(0deg); }
  28%  { transform: rotate(85deg); }     /* peak: arm flung way back */
  55%  { transform: rotate(20deg); }
  78%  { transform: rotate(60deg); }
  100% { transform: rotate(48deg); }
}

@keyframes legKickUp {
  0%   { transform: rotate(0deg); }
  28%  { transform: rotate(-55deg); }    /* slipped foot kicked UP forward */
  55%  { transform: rotate(-8deg); }
  78%  { transform: rotate(-24deg); }
  100% { transform: rotate(-20deg); }    /* settled, foot still off-center */
}

/* ============== STATE: THINK / RECOVER ==============
   Out of the stumble pose: body tilts back through neutral, limbs return
   to standing via the .kid-limb transition. Mirrors the stumble's
   gentle overshoot. */
body[data-intro="think"] .kid-wrap     { animation: standUp 0.6s cubic-bezier(0.3, 0, 0.2, 1) forwards; }
body[data-intro="think"] .kid-leg-front { transform: rotate(0deg); }
body[data-intro="think"] .kid-leg-back  { transform: rotate(0deg); }
body[data-intro="think"] .kid-arm-front { transform: rotate(0deg); }
body[data-intro="think"] .kid-arm-back  { transform: rotate(0deg); }
body[data-intro="think"] .kid-body      { transform: rotate(0deg); }
body[data-intro="think"] .kid-head      { transform: rotate(0deg); }

@keyframes standUp {
  0%   { transform: translateX(3px)  translateY(0)   rotate(13deg); }
  55%  { transform: translateX(-1px) translateY(-3px) rotate(-5deg); }  /* slight overshoot back */
  100% { transform: translateX(0)    translateY(0)   rotate(0deg); }
}

/* Banana peel — a stationary object on the ground that the kid walks into.
   The trip beat sends it spinning backward. */
.banana {
  position: absolute;
  bottom: 22px;
  left: 50%;
  margin-left: -13px;
  font-size: 28px;
  line-height: 1;
  transform: rotate(-22deg);
  transform-origin: center;
  pointer-events: none;
  user-select: none;
  filter: drop-shadow(0 2px 1px rgba(0, 0, 0, 0.18));
  transition: transform 0.5s cubic-bezier(0.4, 0.9, 0.5, 1);
}
body[data-intro="run"] .banana {
  transform: rotate(-22deg);
  transition: none;
}
body[data-intro="trip"] .banana,
body[data-intro="think"] .banana {
  transition-duration: 0.25s;
  transform: translate(-58px, -2px) rotate(-220deg);
}

.ouch {
  position: absolute;
  top: 32px;
  left: 30px;
  font-family: var(--serif);
  font-weight: 700;
  font-style: italic;
  font-size: 58px;
  color: var(--heart-red);
  opacity: 0;
  transform: scale(0.5) rotate(-30deg);
  transition: opacity 0.35s ease;
}
body[data-intro="trip"] .ouch {
  opacity: 1;
  animation: ouchPop 0.55s cubic-bezier(0.34, 1.7, 0.5, 1) forwards;
}
@keyframes ouchPop {
  0%   { transform: scale(0.5) rotate(-30deg); }
  45%  { transform: scale(1.4) rotate(-6deg); }    /* big punch */
  72%  { transform: scale(0.92) rotate(-14deg); }
  100% { transform: scale(1.05) rotate(-12deg); }  /* settled, slightly oversized */
}

/* Thought bubble for the cortex beat — "Now I'm safe." */
.kid-thought {
  position: absolute;
  top: 28px;
  right: 24px;
  background: white;
  border-radius: 22px;
  padding: 12px 20px;
  font-family: var(--serif);
  font-style: italic;
  font-weight: 600;
  font-size: 19px;
  color: var(--ink);
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.12);
  opacity: 0;
  transform: scale(0.7) translateY(8px);
  transition: opacity 0.5s, transform 0.5s cubic-bezier(0.22, 1.6, 0.36, 1);
  pointer-events: none;
  z-index: 5;
  max-width: 80%;
  white-space: nowrap;
}
.kid-thought.shown { opacity: 1; transform: scale(1) translateY(0); }
/* tail of the thought bubble — two small circles going down toward the kid */
.kid-thought::before,
.kid-thought::after {
  content: "";
  position: absolute;
  background: white;
  border-radius: 50%;
  box-shadow: 0 3px 8px rgba(0, 0, 0, 0.06);
}
.kid-thought::before {
  width: 10px;
  height: 10px;
  bottom: -12px;
  left: 22px;
}
.kid-thought::after {
  width: 6px;
  height: 6px;
  bottom: -24px;
  left: 14px;
}

/* ============== COMBINED BRAIN-BODY WIRING DIAGRAM ============== */
.wiring-svg {
  width: 100%;
  height: 100%;
  max-height: 290px;
  display: block;
}

/* organ keepalive — generic styles (small organs in main game still use these) */
.organ {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 14px 0;
}
.organ-svg {
  width: 64px;
  height: 64px;
  transition: transform 0.3s;
}
.heart-organ .organ-svg { transform-origin: 50% 70%; }
.organ-label {
  font-family: var(--sans);
  font-size: 16px;
  font-weight: 700;
  color: var(--ink);
}
.organ-label span:first-child {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 22px;
  display: block;
  line-height: 1;
}
@keyframes organPulseFast {
  0%, 100% { transform: scale(1); }
  50%      { transform: scale(1.18); }
}
@keyframes organPulseSlow {
  0%, 100% { transform: scale(1); }
  50%      { transform: scale(1.06); }
}

/* Wiring SVG: brain layers + body organs + arrows + badges */
.wiring-svg .organ-name-label {
  font-family: var(--sans);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.18em;
  opacity: 0.78;
}
.wiring-svg .organ-text-label {
  font-family: var(--sans);
  font-size: 14px;
  font-weight: 700;
}
.wiring-svg .bpm-num,
.wiring-svg .brpm-num {
  font-size: 18px;
}

/* Heart and lung pulse inside wiring SVG */
.wiring-svg .heart-path {
  transform-origin: 380px 60px;
  transition: filter 0.3s;
}
.wiring-svg .lungs-path {
  transform-origin: 380px 195px;
}
.wiring-svg .body-organ.fast .heart-path,
.wiring-svg #wiring-heart.fast .heart-path {
  animation: organPulseFast 0.45s ease-in-out infinite;
}
.wiring-svg #wiring-heart.calm .heart-path {
  animation: organPulseSlow 1.4s ease-in-out infinite;
}
.wiring-svg #wiring-lungs.fast .lungs-path {
  animation: organPulseFast 0.6s ease-in-out infinite;
}
.wiring-svg #wiring-lungs.calm .lungs-path {
  animation: organPulseSlow 1.5s ease-in-out infinite;
}

/* Arrows — hidden by default via stroke-dashoffset trick */
.wiring-arrows .arrow {
  stroke-dasharray: 200;
  stroke-dashoffset: 200;
  opacity: 0;
  transition: opacity 0.3s;
}
.wiring-arrows .arrow.shown {
  opacity: 1;
  animation: drawArrow 0.7s ease-out forwards;
}
.wiring-arrows .arrow.shown.slow {
  animation: drawArrow 1.6s ease-out forwards;
}
@keyframes drawArrow {
  from { stroke-dashoffset: 200; }
  to   { stroke-dashoffset: 0; }
}
/* keep dotted look for the slow arrow */
.wiring-arrows .arrow.slow.shown {
  stroke-dasharray: 4 6;
  animation: none;
}
.wiring-arrows .arrow.slow {
  stroke-dasharray: 4 6;
  stroke-dashoffset: 0;
}

/* Number badges */
.wiring-badges .step-badge {
  opacity: 0;
  transform: scale(0.6);
  transform-box: fill-box;
  transform-origin: center;
  transition: opacity 0.35s, transform 0.35s cubic-bezier(0.22, 1.6, 0.36, 1);
}
.wiring-badges .step-badge.shown {
  opacity: 1;
  transform: scale(1);
}

/* "current" badge gets a gentle pulse */
.wiring-badges .step-badge.current circle {
  animation: badgePulse 1.2s ease-in-out infinite;
}
@keyframes badgePulse {
  0%, 100% { filter: drop-shadow(0 0 2px currentColor); }
  50%      { filter: drop-shadow(0 0 10px currentColor); }
}
.wiring-badges .step-badge[data-step="1"] { color: #a85e6a; }
.wiring-badges .step-badge[data-step="2"] { color: #5a7a5a; }
.wiring-badges .step-badge[data-step="3"] { color: #a96f1f; }
.wiring-badges .step-badge[data-step="4"] { color: #5a6fa0; }
.wiring-badges .step-badge-role {
  font-family: var(--sans);
  font-size: 7.5px;
  font-weight: 800;
  letter-spacing: 0.12em;
  fill: currentColor;
  paint-order: stroke;
  stroke: rgba(255, 248, 238, 0.92);
  stroke-width: 3px;
  stroke-linejoin: round;
}

/* Brain-layer activation via CSS variables set by JS */
.brain-layer {
  transition: opacity 0.6s, transform 0.6s;
  transform-origin: center;
}
.brain-layer .layer-fill {
  transition: filter 0.6s, fill 0.4s;
  filter: brightness(1);
}
.brain-layer .layer-label {
  font-family: var(--sans);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.18em;
  pointer-events: none;
  user-select: none;
}
.brain-layer .layer-sub {
  font-family: var(--sans);
  font-size: 9px;
  letter-spacing: 0.04em;
  pointer-events: none;
  user-select: none;
  opacity: 0.75;
}

/* Activation classes set by JS — small glow + slight scale */
.brain-layer.active .layer-fill {
  filter: brightness(1.12) drop-shadow(0 0 8px currentColor);
}
.brain-layer.hot .layer-fill {
  filter: brightness(1.18) drop-shadow(0 0 16px currentColor);
  animation: layerPulse 0.6s ease-in-out infinite;
}
.brain-layer.dim .layer-fill {
  filter: brightness(0.75) saturate(0.5);
}

/* Image-based brain layers (the new anatomical PNG version) — same state
   semantics as the path-based rules above, but targeting <image>. */
.brain-layer image {
  transform-box: fill-box;
  transform-origin: center;
  transition: filter 0.6s;
}
.brain-layer.active image {
  filter: brightness(1.10) drop-shadow(0 0 8px currentColor);
}
.brain-layer.hot image {
  filter: brightness(1.18) drop-shadow(0 0 14px currentColor);
  animation: layerPulse 0.6s ease-in-out infinite;
}
.brain-layer.current image {
  filter: brightness(1.14) drop-shadow(0 0 12px currentColor);
  animation: layerPulse 1.1s ease-in-out infinite;
}
.brain-layer.dim image {
  filter: brightness(0.72) saturate(0.5);
}
@keyframes layerPulse {
  0%, 100% { transform: scale(1); }
  50%      { transform: scale(1.03); }
}

/* color reference for currentColor in drop-shadow */
.brain-layer[data-region="cortex"]    { color: var(--cortex); }
.brain-layer[data-region="limbic"]    { color: var(--limbic-deep); }
.brain-layer[data-region="brainstem"] { color: var(--brainstem-deep); }

/* Caption lives INSIDE the .intro-stage grid, spanning both columns —
   reads as the diagram's own subtitle, not a floating note below. */
.intro-caption {
  grid-column: 1 / -1;
  text-align: center;
  font-family: var(--serif);
  font-style: italic;
  font-size: clamp(17px, 1.9vw, 22px);
  color: var(--ink);
  margin: 0;
  padding: 14px 18px 0;
  border-top: 1px dashed rgba(28, 28, 28, 0.12);
  min-height: 1.5em;
  transition: opacity 0.3s;
}
.intro-caption.fade { opacity: 0; }

.intro-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-top: 18px;
  flex-wrap: wrap;
}
.step-btn {
  background: white;
  border: 1.5px solid #ece2cd;
  color: var(--ink);
  padding: 9px 16px;
  border-radius: 999px;
  font-family: var(--sans);
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s, transform 0.15s;
  box-shadow: 0 2px 0 #ece2cd;
}
.step-btn:hover { border-color: var(--gold); background: var(--gold-soft); transform: translateY(-1px); }
.step-btn:active { transform: translateY(1px); box-shadow: 0 1px 0 #ece2cd; }
.step-btn:disabled { opacity: 0.45; cursor: not-allowed; transform: none; box-shadow: 0 2px 0 #ece2cd; }
.step-btn:disabled:hover { border-color: #ece2cd; background: white; }
.step-btn.primary {
  background: var(--ink);
  color: var(--cream);
  border-color: var(--ink);
  box-shadow: 0 2px 0 #1c191e;
  min-width: 130px;
}
.step-btn.primary:hover { background: #1c191e; }

.step-indicator {
  font-family: var(--sans);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--ink-soft);
  padding: 0 8px;
}
.step-indicator span { color: var(--ink); }

.ghost-btn {
  background: transparent;
  border: 1px solid var(--ink-light);
  color: var(--ink-soft);
  padding: 8px 18px;
  border-radius: 999px;
  font-family: var(--sans);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s, color 0.2s, border-color 0.2s;
}
.ghost-btn:hover { background: var(--ink); color: var(--cream); border-color: var(--ink); }

/* ====================== PART 2 — GAME ======================
   Same two-column shape as Part 1's intro-stage so the visual handoff
   from "watch the alarm" to "calm the alarm" feels seamless. The user
   reaches in to the same circuit they just learned. */
.part-game {
  background: linear-gradient(180deg, #FFF9F0 0%, #FDF0E2 100%);
  max-width: none;
  padding-top: clamp(36px, 5vw, 72px);
  padding-bottom: clamp(42px, 6vw, 78px);
  padding-left: 0;
  padding-right: 0;
}
.part-game > * {
  width: calc(100% - clamp(40px, 10vw, 112px));
  max-width: 1068px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 0;
  padding-right: 0;
}
.part-game .part-head {
  margin-bottom: 22px;
}
.part-game .part-sub {
  max-width: 780px;
  line-height: 1.42;
}

.game-stage {
  display: grid;
  grid-template-columns: minmax(210px, 250px) 1fr;
  gap: 18px;
  align-items: stretch;
  background: var(--paper);
  border: 1px solid rgba(236, 226, 205, 0.72);
  border-radius: 18px;
  padding: 18px 18px 16px;
  margin-top: 0;
  position: relative;
  min-height: 0;
  transition: background 0.8s ease, border-color 0.8s ease, box-shadow 0.8s ease;
}
.game-stage .wiring-svg {
  max-height: 270px;
  align-self: center;
}
.game-stage[data-regulation="alarm"] {
  background: linear-gradient(180deg, #fff6ed 0%, #fde8df 100%);
  border-color: rgba(239, 198, 186, 0.72);
  box-shadow: 0 8px 28px rgba(168, 58, 58, 0.045);
}
.game-stage[data-regulation="active"] {
  background: linear-gradient(180deg, #fff9f0 0%, #f9eddf 100%);
  border-color: rgba(234, 214, 189, 0.72);
}
.game-stage[data-regulation="settling"] {
  background: linear-gradient(180deg, #f7fbf4 0%, #eaf4ed 100%);
  border-color: rgba(200, 221, 203, 0.72);
}
.game-stage[data-regulation="calm"] {
  background: linear-gradient(180deg, #f4fbfb 0%, #e4f0ed 100%);
  border-color: rgba(189, 219, 214, 0.76);
  box-shadow: 0 8px 28px rgba(58, 138, 138, 0.06);
}
/* LEFT: scene with Peter in the watering can. Mirrors intro-scene. */
.game-scene {
  position: relative;
  height: clamp(220px, 22vw, 270px);
  display: flex;
  align-items: flex-end;
  justify-content: center;
  overflow: hidden;
  border-radius: 14px;
  background: linear-gradient(180deg, #fdf3df 0%, #f5e2c2 100%);
  transition: background 0.8s ease, box-shadow 0.8s ease;
}
.game-scene::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 35%, rgba(255, 255, 255, 0.45), transparent 46%);
  opacity: 0.4;
  pointer-events: none;
  transition: opacity 0.8s ease, background 0.8s ease;
}
.game-stage[data-regulation="alarm"] .game-scene {
  background:
    radial-gradient(circle at 52% 30%, rgba(225, 95, 95, 0.22), transparent 34%),
    linear-gradient(180deg, #fce6d6 0%, #f3cfbc 100%);
}
.game-stage[data-regulation="active"] .game-scene {
  background:
    radial-gradient(circle at 52% 32%, rgba(232, 158, 130, 0.16), transparent 35%),
    linear-gradient(180deg, #fdf0db 0%, #f2dcc5 100%);
}
.game-stage[data-regulation="settling"] .game-scene {
  background:
    radial-gradient(circle at 52% 34%, rgba(156, 192, 154, 0.2), transparent 38%),
    linear-gradient(180deg, #f4efd7 0%, #e3efd9 100%);
}
.game-stage[data-regulation="calm"] .game-scene {
  background:
    radial-gradient(circle at 52% 34%, rgba(58, 138, 138, 0.18), transparent 40%),
    linear-gradient(180deg, #edf6ec 0%, #dbece8 100%);
}
.game-stage[data-regulation="alarm"] .game-scene::before {
  opacity: 0.2;
}
.game-stage[data-regulation="calm"] .game-scene::before {
  opacity: 0.65;
}
@media (max-width: 880px) {
  .part-game > * {
    padding-left: 0;
    padding-right: 0;
  }
  .part-game .part-head {
    margin-bottom: 16px;
  }
  .part-game .part-num {
    margin-bottom: 8px;
  }
  .part-game .part-head h2 {
    font-size: clamp(34px, 10vw, 46px);
    margin-bottom: 8px;
  }
  .part-game .part-sub {
    font-size: 16px;
    line-height: 1.35;
  }
  .game-stage {
    grid-template-columns: minmax(112px, 40%) minmax(0, 1fr);
    gap: 10px;
    border-radius: 16px;
    padding: 12px 12px 10px;
  }
  .game-scene {
    height: clamp(186px, 55vw, 230px);
    border-radius: 12px;
  }
  .game-stage .wiring-svg {
    max-height: clamp(186px, 55vw, 230px);
  }
  .game-caption {
    font-size: 15px;
    line-height: 1.28;
    padding: 7px 2px 0;
  }
}
@media (max-width: 420px) {
  .part-game {
    padding-top: 28px;
    padding-bottom: 46px;
  }
  .part-game > * {
    padding-left: 0;
    padding-right: 0;
  }
  .part-game .part-sub {
    font-size: 15px;
  }
  .game-stage {
    grid-template-columns: minmax(104px, 38%) minmax(0, 1fr);
    gap: 8px;
    padding: 10px;
  }
  .game-scene {
    height: 190px;
  }
  .game-stage .wiring-svg {
    max-height: 190px;
  }
  .game-caption {
    font-size: 14px;
  }
}
.game-character {
  position: relative;
  width: 100%;
  max-width: 205px;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  margin-bottom: 0;
  transition: filter 0.5s;
  transform-origin: center bottom;
  z-index: 1;
}
.peter-svg {
  width: 100%;
  height: auto;
  transition: transform 0.4s;
  transform-origin: center bottom;
  will-change: transform;
}
.watering-can,
.watering-can-shadow,
.peter-ear,
.peter-pupil-group {
  transform-box: fill-box;
  transform-origin: center;
  will-change: transform;
}
.watering-can {
  transform-origin: center 86%;
}
.watering-can-shadow {
  transform-origin: center center;
}
.peter-ear {
  transform-origin: center bottom;
}
.peter-pupil-group {
  transform-origin: center center;
}
@media (max-width: 880px) {
  .game-character {
    max-width: min(150px, 38vw);
  }
}
@media (max-width: 420px) {
  .game-character {
    max-width: 136px;
  }
}

/* Peter's state, driven by data-peter on the wrapper. Each value is the
   visible reaction to a card pick (or the initial panic state). */
.game-character[data-peter="panic"] .peter-svg {
  animation: peterTremble 0.52s ease-in-out infinite;
}
.game-character[data-peter="panic"] .watering-can {
  animation: canWobble 0.52s ease-in-out infinite;
}
.game-character[data-peter="panic"] .watering-can-shadow {
  animation: canShadowWobble 0.52s ease-in-out infinite;
}
.game-character[data-peter="panic"] .peter-ear-left {
  animation: earNervousLeft 0.52s ease-in-out infinite;
}
.game-character[data-peter="panic"] .peter-ear-right {
  animation: earNervousRight 0.52s ease-in-out infinite;
}
.game-character[data-peter="panic"] .peter-pupil-group {
  animation: pupilDart 0.9s steps(1, end) infinite;
}
.game-character[data-peter="hyper"] .peter-svg {
  animation: peterTremble 0.34s ease-in-out infinite;
  filter: saturate(1.1);
}
.game-character[data-peter="hyper"] .watering-can {
  animation: canRattle 0.34s ease-in-out infinite;
}
.game-character[data-peter="hyper"] .watering-can-shadow {
  animation: canShadowWobble 0.34s ease-in-out infinite;
}
.game-character[data-peter="hyper"] .peter-ear-left {
  animation: earNervousLeft 0.34s ease-in-out infinite;
}
.game-character[data-peter="hyper"] .peter-ear-right {
  animation: earNervousRight 0.34s ease-in-out infinite;
}
.game-character[data-peter="hyper"] .peter-pupil-group {
  animation: pupilDart 0.62s steps(1, end) infinite;
}
.game-character[data-peter="notice"] .peter-svg {
  animation: peterListen 0.82s cubic-bezier(0.22, 1.45, 0.36, 1) 1;
}
.game-character[data-peter="notice"] .peter-ear-left {
  animation: earPerkLeft 0.82s cubic-bezier(0.22, 1.45, 0.36, 1) 1;
}
.game-character[data-peter="notice"] .peter-ear-right {
  animation: earPerkRight 0.82s cubic-bezier(0.22, 1.45, 0.36, 1) 1;
}
.game-character[data-peter="notice"] .peter-pupil-group {
  animation: pupilCenter 0.82s ease-out 1;
}
.game-character[data-peter="breathe"] .peter-svg {
  animation: peterBreathe 2.55s ease-in-out 1;
}
.game-character[data-peter="breathe"] .watering-can {
  animation: canSettle 2.55s ease-in-out 1;
}
.game-character[data-peter="breathe"] .peter-ear-left,
.game-character[data-peter="breathe"] .peter-ear-right {
  animation: earRelax 2.55s ease-in-out 1;
}
.game-character[data-peter="breathe"] .peter-pupil-group {
  animation: pupilSlowBlink 2.55s ease-in-out 1;
}
.game-character[data-peter="settling"] .peter-svg {
  animation: peterSettling 2.2s ease-in-out infinite;
}
.game-character[data-peter="settling"] .watering-can {
  animation: canSettleLoop 2.2s ease-in-out infinite;
}
.game-character[data-peter="settling"] .peter-ear-left,
.game-character[data-peter="settling"] .peter-ear-right {
  animation: earSettling 2.2s ease-in-out infinite;
}
.game-character[data-peter="settling"] .peter-pupil-group {
  animation: pupilSettling 2.2s ease-in-out infinite;
}
.game-character[data-peter="reframe"] .peter-svg {
  animation: peterCalm 1.25s cubic-bezier(0.22, 1.35, 0.36, 1) 1;
}
.game-character[data-peter="reframe"] .peter-ear-left,
.game-character[data-peter="reframe"] .peter-ear-right {
  animation: earHappy 1.25s cubic-bezier(0.22, 1.35, 0.36, 1) 1;
}
.game-character[data-peter="reframe"] .peter-pupil-group {
  animation: pupilSoft 1.25s ease-out 1;
}
.game-character[data-peter="suppress"] .peter-svg {
  animation: peterClench 0.36s ease-in-out 3;
  filter: contrast(1.15) saturate(1.1);
}
.game-character[data-peter="suppress"] .watering-can {
  animation: canRattle 0.36s ease-in-out 3;
}
.game-character[data-peter="suppress"] .watering-can-shadow {
  animation: canShadowWobble 0.36s ease-in-out 3;
}
.game-character[data-peter="suppress"] .peter-ear-left,
.game-character[data-peter="suppress"] .peter-ear-right {
  animation: earFlatten 0.36s ease-in-out 3;
}
.game-character[data-peter="suppress"] .peter-pupil-group {
  animation: pupilSquint 0.36s ease-in-out 3;
}
.game-character[data-peter="calm"] { filter: saturate(0.95); }
.game-character[data-peter="calm"] .peter-svg {
  animation: peterPeek 2.8s ease-in-out infinite;
}
.game-character[data-peter="calm"] .peter-ear-left,
.game-character[data-peter="calm"] .peter-ear-right {
  animation: earCalm 2.8s ease-in-out infinite;
}
.game-character[data-peter="calm"] .peter-pupil-group {
  animation: pupilCalm 2.8s ease-in-out infinite;
}
.game-character.won .peter-svg {
  animation:
    peterVictory 0.9s cubic-bezier(0.22, 1.45, 0.36, 1) 1,
    peterPeek 2.8s ease-in-out 0.9s infinite;
}
.game-character.won .watering-can {
  animation: canVictory 0.9s cubic-bezier(0.22, 1.35, 0.36, 1) 1;
}
.game-character.won .peter-ear-left {
  animation:
    earVictoryLeft 0.9s cubic-bezier(0.22, 1.45, 0.36, 1) 1,
    earCalm 2.8s ease-in-out 0.9s infinite;
}
.game-character.won .peter-ear-right {
  animation:
    earVictoryRight 0.9s cubic-bezier(0.22, 1.45, 0.36, 1) 1,
    earCalm 2.8s ease-in-out 0.9s infinite;
}
.game-character.won .peter-pupil-group {
  animation:
    pupilGateLook 0.9s ease-out 1,
    pupilCalm 2.8s ease-in-out 0.9s infinite;
}

@keyframes peterTremble {
  0%, 100% { transform: translateX(0) translateY(0) rotate(0deg) scale(1); }
  20%      { transform: translateX(-2px) translateY(-1px) rotate(-1.2deg) scale(1.01); }
  42%      { transform: translateX(2px) translateY(0) rotate(1.1deg) scale(0.995); }
  64%      { transform: translateX(-1px) translateY(-2px) rotate(-0.7deg) scale(1.01); }
  82%      { transform: translateX(1px) translateY(0) rotate(0.6deg) scale(1); }
}
@keyframes peterListen {
  0%   { transform: translateY(0) rotate(0deg) scale(1); }
  28%  { transform: translateY(-10px) rotate(-4deg) scale(1.04); }
  52%  { transform: translateY(-5px) rotate(3deg) scale(1.02); }
  76%  { transform: translateY(-8px) rotate(-1deg) scale(1.03); }
  100% { transform: translateY(0) rotate(0deg) scale(1); }
}
@keyframes peterBreathe {
  0%   { transform: translateY(0) scale(1); }
  28%  { transform: translateY(-8px) scale(1.045); }   /* inhale */
  48%  { transform: translateY(-8px) scale(1.04); }    /* hold */
  82%  { transform: translateY(7px) scale(0.975); }    /* long exhale */
  100% { transform: translateY(0) scale(1); }
}
@keyframes peterSettling {
  0%, 100% { transform: translateY(0) rotate(0deg) scale(1); }
  45%      { transform: translateY(-3px) rotate(-0.5deg) scale(1.01); }
  70%      { transform: translateY(-1px) rotate(0.4deg) scale(1.005); }
}
@keyframes peterCalm {
  0%   { transform: translateY(0) rotate(0deg) scale(1); }
  35%  { transform: translateY(-9px) rotate(2deg) scale(1.04); }
  64%  { transform: translateY(-4px) rotate(-1deg) scale(1.015); }
  100% { transform: translateY(0) rotate(0deg) scale(1); }
}
@keyframes peterClench {
  0%, 100% { transform: translateX(0) scale(1); }
  25%      { transform: translateX(-4px) rotate(-1.5deg) scale(0.99); }
  50%      { transform: translateX(4px) rotate(1.5deg) scale(0.975); }
  75%      { transform: translateX(-2px) rotate(-0.8deg) scale(0.99); }
}
@keyframes peterPeek {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  35%      { transform: translateY(-8px) rotate(-1deg); }
  65%      { transform: translateY(-5px) rotate(1deg); }
}
@keyframes peterVictory {
  0%   { transform: translateY(0) rotate(0deg) scale(1); }
  30%  { transform: translateY(-22px) rotate(-5deg) scale(1.08); }
  55%  { transform: translateY(-8px) rotate(4deg) scale(1.03); }
  78%  { transform: translateY(-14px) rotate(-2deg) scale(1.04); }
  100% { transform: translateY(0) rotate(0deg) scale(1); }
}
@keyframes canWobble {
  0%, 100% { transform: translateX(0) rotate(0deg); }
  25%      { transform: translateX(-1px) rotate(-0.6deg); }
  55%      { transform: translateX(1px) rotate(0.7deg); }
  78%      { transform: translateX(-0.5px) rotate(-0.3deg); }
}
@keyframes canRattle {
  0%, 100% { transform: translateX(0) rotate(0deg); }
  20%      { transform: translateX(-3px) rotate(-1.7deg); }
  42%      { transform: translateX(3px) rotate(1.5deg); }
  64%      { transform: translateX(-2px) rotate(-1deg); }
  82%      { transform: translateX(2px) rotate(0.8deg); }
}
@keyframes canSettle {
  0%   { transform: translateY(0) scale(1); }
  30%  { transform: translateY(2px) scale(0.995, 1.01); }
  58%  { transform: translateY(0) scale(1.005, 0.995); }
  100% { transform: translateY(0) scale(1); }
}
@keyframes canSettleLoop {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  45%      { transform: translateY(1px) rotate(0.25deg); }
}
@keyframes canVictory {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  34%      { transform: translateY(3px) rotate(1deg); }
  62%      { transform: translateY(0) rotate(-0.7deg); }
}
@keyframes canShadowWobble {
  0%, 100% { transform: scaleX(1); opacity: 1; }
  50%      { transform: scaleX(0.94); opacity: 0.8; }
}
@keyframes earNervousLeft {
  0%, 100% { transform: rotate(0deg) translateY(0); }
  25%      { transform: rotate(-5deg) translateY(-1px); }
  55%      { transform: rotate(3deg) translateY(0); }
  78%      { transform: rotate(-2deg) translateY(-1px); }
}
@keyframes earNervousRight {
  0%, 100% { transform: rotate(0deg) translateY(0); }
  25%      { transform: rotate(5deg) translateY(-1px); }
  55%      { transform: rotate(-3deg) translateY(0); }
  78%      { transform: rotate(2deg) translateY(-1px); }
}
@keyframes earPerkLeft {
  0%   { transform: rotate(0deg) translateY(0) scaleY(1); }
  36%  { transform: rotate(-11deg) translateY(-6px) scaleY(1.08); }
  66%  { transform: rotate(4deg) translateY(-2px) scaleY(1.02); }
  100% { transform: rotate(0deg) translateY(0) scaleY(1); }
}
@keyframes earPerkRight {
  0%   { transform: rotate(0deg) translateY(0) scaleY(1); }
  36%  { transform: rotate(11deg) translateY(-6px) scaleY(1.08); }
  66%  { transform: rotate(-4deg) translateY(-2px) scaleY(1.02); }
  100% { transform: rotate(0deg) translateY(0) scaleY(1); }
}
@keyframes earRelax {
  0%   { transform: rotate(0deg) translateY(0) scaleY(1); }
  40%  { transform: rotate(0deg) translateY(2px) scaleY(0.94); }
  100% { transform: rotate(0deg) translateY(0) scaleY(1); }
}
@keyframes earSettling {
  0%, 100% { transform: translateY(0) rotate(0deg) scaleY(1); }
  48%      { transform: translateY(-1px) rotate(1deg) scaleY(0.98); }
}
@keyframes earHappy {
  0%   { transform: rotate(0deg) translateY(0); }
  42%  { transform: rotate(3deg) translateY(-5px) scaleY(1.05); }
  72%  { transform: rotate(-2deg) translateY(-2px); }
  100% { transform: rotate(0deg) translateY(0); }
}
@keyframes earFlatten {
  0%, 100% { transform: rotate(0deg) translateY(0) scaleY(1); }
  50%      { transform: rotate(-9deg) translateY(5px) scaleY(0.78); }
}
@keyframes earCalm {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  45%      { transform: translateY(-2px) rotate(1.5deg); }
}
@keyframes earVictoryLeft {
  0%   { transform: rotate(0deg) translateY(0) scaleY(1); }
  28%  { transform: rotate(-14deg) translateY(-9px) scaleY(1.12); }
  58%  { transform: rotate(7deg) translateY(-3px) scaleY(1.03); }
  100% { transform: rotate(0deg) translateY(0) scaleY(1); }
}
@keyframes earVictoryRight {
  0%   { transform: rotate(0deg) translateY(0) scaleY(1); }
  28%  { transform: rotate(14deg) translateY(-9px) scaleY(1.12); }
  58%  { transform: rotate(-7deg) translateY(-3px) scaleY(1.03); }
  100% { transform: rotate(0deg) translateY(0) scaleY(1); }
}
@keyframes pupilDart {
  0%, 100% { transform: translate(0, 0); }
  20%      { transform: translate(-2px, -0.5px); }
  42%      { transform: translate(2px, 0.5px); }
  66%      { transform: translate(0, -1.5px); }
  84%      { transform: translate(1px, 0); }
}
@keyframes pupilCenter {
  0%   { transform: translate(-1px, 0); }
  38%  { transform: translate(0, -1px) scale(1.08); }
  100% { transform: translate(0, 0) scale(1); }
}
@keyframes pupilSlowBlink {
  0%, 100% { transform: translate(0, 0) scaleY(1); }
  42%      { transform: translate(0, 1px) scaleY(0.62); }
  58%      { transform: translate(0, 1px) scaleY(0.72); }
}
@keyframes pupilSettling {
  0%, 100% { transform: translate(0, 0); }
  38%      { transform: translate(1px, -0.3px); }
  70%      { transform: translate(-0.4px, 0); }
}
@keyframes pupilSoft {
  0%   { transform: translate(0, 0) scale(1); }
  45%  { transform: translate(1.5px, -0.5px) scale(1.06); }
  100% { transform: translate(0.5px, 0) scale(1); }
}
@keyframes pupilSquint {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50%      { transform: translate(0, 1px) scale(1.12, 0.55); }
}
@keyframes pupilCalm {
  0%, 100% { transform: translate(0, 0); }
  45%      { transform: translate(0.8px, -0.4px); }
}
@keyframes pupilGateLook {
  0%   { transform: translate(0, 0); }
  35%  { transform: translate(3px, -1px) scale(1.08); }
  100% { transform: translate(2px, -0.5px); }
}

/* Breath puff — soft cloud that drifts up out of the watering can during
   a breathe action. Pure CSS, no extra SVG. */
.breath-puff {
  position: absolute;
  top: 40%;
  left: 50%;
  width: 56px;
  height: 28px;
  transform: translate(-50%, 0) scale(0);
  border-radius: 50%;
  background: radial-gradient(ellipse, rgba(200, 226, 240, 0.85) 0%, rgba(200, 226, 240, 0) 70%);
  opacity: 0;
  pointer-events: none;
}
.breath-puff::before,
.breath-puff::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  background: rgba(218, 235, 243, 0.65);
}
.breath-puff::before {
  width: 22px;
  height: 14px;
  left: 4px;
  top: 7px;
}
.breath-puff::after {
  width: 28px;
  height: 17px;
  right: 5px;
  top: 4px;
}
.breath-puff.shown { animation: breathPuff 2.4s ease-out 1; }
@keyframes breathPuff {
  0%   { opacity: 0;   transform: translate(-50%, 0)  scale(0.35) rotate(0deg); }
  18%  { opacity: 0.95; transform: translate(-50%, 4px) scale(1) rotate(-2deg); }
  58%  { opacity: 0.5; transform: translate(-56%, -20px) scale(1.65) rotate(3deg); }
  100% { opacity: 0;   transform: translate(-62%, -52px) scale(2.35) rotate(6deg); }
}

/* Peter's thought bubble — used by the reframe beat. Same visual
   vocabulary as the kid-thought in Part 1. */
.peter-thought {
  position: absolute;
  top: 14px;
  right: 14px;
  background: white;
  border-radius: 20px;
  padding: 10px 16px;
  font-family: var(--serif);
  font-style: italic;
  font-weight: 600;
  font-size: 16px;
  color: var(--ink);
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.12);
  opacity: 0;
  transform: scale(0.7) translateY(8px);
  transition: opacity 0.5s, transform 0.5s cubic-bezier(0.22, 1.6, 0.36, 1);
  pointer-events: none;
  z-index: 5;
  max-width: 75%;
  white-space: nowrap;
}
.peter-thought.shown { opacity: 1; transform: scale(1) translateY(0); }
.peter-thought::before,
.peter-thought::after {
  content: "";
  position: absolute;
  background: white;
  border-radius: 50%;
  box-shadow: 0 3px 8px rgba(0, 0, 0, 0.06);
}
.peter-thought::before { width: 8px; height: 8px; bottom: -10px; left: 14px; }
.peter-thought::after  { width: 5px; height: 5px; bottom: -20px; left: 8px; }

.game-character::before,
.game-character::after {
  content: "✦";
  position: absolute;
  top: 74px;
  color: var(--gold);
  font-size: 18px;
  opacity: 0;
  transform: scale(0.2) rotate(0deg);
  pointer-events: none;
  z-index: 6;
}
.game-character::before { left: 36px; }
.game-character::after  { right: 38px; top: 96px; font-size: 14px; }
.game-character.won::before,
.game-character.won::after {
  animation: peterSparkle 1.1s ease-out 1;
}
@keyframes peterSparkle {
  0%   { opacity: 0; transform: translateY(0) scale(0.2) rotate(0deg); }
  28%  { opacity: 1; transform: translateY(-14px) scale(1) rotate(16deg); }
  100% { opacity: 0; transform: translateY(-34px) scale(0.55) rotate(46deg); }
}

/* Caption — same role and styling as Part 1's intro-caption. */
.game-caption {
  grid-column: 1 / -1;
  text-align: center;
  font-family: var(--serif);
  font-style: italic;
  font-size: clamp(15px, 1.6vw, 19px);
  color: var(--ink);
  margin: 0;
  padding: 8px 14px 0;
  border-top: 1px dashed rgba(28, 28, 28, 0.12);
  min-height: 1.35em;
  transition: opacity 0.3s, color 0.3s;
}
.game-caption.fade    { opacity: 0; }
.game-caption.warn    { color: #b85a3a; }
.game-caption.error   { color: var(--heart-red); }
.game-caption.success { color: var(--brainstem-deep); }

/* "Racing" pulse for the panic start state (HR ≥ 150). */
.wiring-svg .body-organ.racing .heart-path {
  animation: organPulseFast 0.35s ease-in-out infinite;
}
.wiring-svg .body-organ.racing .lungs-path {
  animation: organPulseFast 0.50s ease-in-out infinite;
}

/* Alarm arrows in the game wiring dim/fade as Peter calms. */
#game-wiring .alarm-arrows .arrow.dim   { opacity: 0.22; animation: none; stroke-dashoffset: 0; }
#game-wiring .alarm-arrows .arrow.faded { opacity: 0;    animation: none; stroke-dashoffset: 0; }

.game-stage.learned .wiring-brain .brain-layer .layer-fill {
  animation: learningGlow 1.45s ease-out 1;
}
@keyframes learningGlow {
  0%, 100% { filter: brightness(1.08); }
  35%      { filter: brightness(1.28) drop-shadow(0 0 14px rgba(244, 194, 90, 0.72)); }
}

/* ============== SEQUENCE SLOTS ============== */
.game-sequence {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 9px;
  margin: 14px auto 8px;
}
.seq-slot {
  width: 86px;
  height: 78px;
  border-radius: 14px;
  border: 1.5px dashed rgba(56, 53, 58, 0.3);
  background: rgba(255, 249, 240, 0.7);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  position: relative;
  transition: background 0.3s, border-color 0.3s, transform 0.3s;
}
.seq-slot .seq-num {
  position: absolute;
  top: 6px;
  left: 10px;
  font-family: var(--sans);
  font-size: 11px;
  font-weight: 800;
  color: var(--ink-light);
  letter-spacing: 0.1em;
}
.seq-placeholder {
  font-family: var(--serif);
  font-size: 24px;
  color: var(--ink-light);
}
.seq-slot.filled {
  background: rgba(255, 246, 224, 0.72);
  border: 1.5px solid rgba(200, 156, 48, 0.74);
  border-style: solid;
}
.seq-slot.filled .seq-placeholder { display: none; }
.seq-slot.filled .seq-emoji {
  font-size: 30px;
  margin-top: 2px;
}
.seq-slot.filled .seq-text {
  font-family: var(--sans);
  font-size: 10px;
  font-weight: 700;
  color: var(--ink);
  margin-top: 0;
}
.seq-arrow {
  font-family: var(--serif);
  font-size: 22px;
  color: var(--ink-light);
}

@media (max-width: 640px) {
  .seq-slot { width: 62px; height: 58px; border-radius: 12px; }
  .seq-slot .seq-num { top: 4px; left: 7px; font-size: 9px; }
  .seq-placeholder { font-size: 21px; }
  .seq-slot.filled .seq-emoji { font-size: 23px; }
  .seq-slot.filled .seq-text { display: none; }
  .seq-arrow { font-size: 19px; }
}

/* ============== ACTION CARDS ============== */
.game-cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  margin: 8px 0 0;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}
@media (max-width: 760px) { .game-cards { grid-template-columns: 1fr 1fr; } }

.action-card {
  background: white;
  border: 1.5px solid rgba(236, 226, 205, 0.82);
  border-radius: 14px;
  padding: 14px 10px 15px;
  min-height: 84px;
  font-family: var(--sans);
  font-size: 13px;
  font-weight: 700;
  color: var(--ink);
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 5px;
  transition: transform 0.15s, border-color 0.2s, background 0.2s, box-shadow 0.2s;
  box-shadow: 0 2px 0 rgba(236, 226, 205, 0.72);
}
.action-card:hover {
  border-color: var(--gold);
  background: var(--gold-soft);
  transform: translateY(-2px);
  box-shadow: 0 3px 0 rgba(200, 156, 48, 0.62);
}
.action-card:active { transform: translateY(0); box-shadow: 0 1px 0 rgba(200, 156, 48, 0.68); }
.action-card.pressed {
  /* brief feedback right after a click — pulses to confirm the choice */
  animation: cardPress 0.45s ease-out 1;
  border-color: var(--gold);
  background: var(--gold-soft);
}
@keyframes cardPress {
  0%   { transform: translateY(0)  scale(1); }
  40%  { transform: translateY(-3px) scale(1.04); }
  100% { transform: translateY(0)  scale(1); }
}
.action-card.shake {
  animation: cardShake 0.4s ease-in-out;
  border-color: var(--heart-red);
}
.action-card.locked {
  /* used while a per-pick animation is playing — prevents double-tap */
  opacity: 0.55;
  pointer-events: none;
}
@keyframes cardShake {
  0%, 100% { transform: translateX(0); }
  25%      { transform: translateX(-6px); }
  75%      { transform: translateX(6px); }
}
.card-emoji { font-size: 28px; line-height: 1; }
.card-label { line-height: 1.3; }

@media (max-width: 420px) {
  .game-cards {
    gap: 8px;
  }
  .action-card {
    min-height: 76px;
    padding: 11px 7px 12px;
    border-radius: 12px;
    font-size: 12px;
  }
  .card-emoji {
    font-size: 24px;
  }
}

/* Restart button row. Per-pick narration lives in .game-caption inside the stage. */
.game-controls {
  display: flex;
  justify-content: center;
  margin-top: 18px;
  min-height: 1.5em;
}
.game-retry[hidden] { display: none; }

/* ====================== PART 3 — TWO-CIRCUIT LOOP ====================== */
.part-dyad {
  background: linear-gradient(180deg, #F5FBF7 0%, #FFF9F0 100%);
  max-width: none;
  overflow-x: clip;
  padding-top: clamp(36px, 5vw, 72px);
  padding-bottom: clamp(42px, 6vw, 78px);
  padding-left: 0;
  padding-right: 0;
}
.part-dyad > * {
  width: calc(100% - clamp(40px, 10vw, 112px));
  max-width: 1068px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 0;
  padding-right: 0;
}
.part-dyad .part-head {
  margin-bottom: 22px;
}
.dyad-stage {
  display: grid;
  grid-template-columns: minmax(230px, 0.9fr) minmax(360px, 1.12fr) minmax(230px, 0.9fr);
  gap: 16px;
  align-items: stretch;
  background: rgba(255, 249, 240, 0.84);
  border: 1px solid rgba(220, 232, 220, 0.78);
  border-radius: 18px;
  padding: 20px;
  box-shadow: 0 10px 30px rgba(74, 107, 102, 0.045);
}
.dyad-person {
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto;
  gap: 14px;
  align-items: center;
  justify-items: center;
  min-height: 300px;
  background: white;
  border: 1px solid rgba(230, 225, 214, 0.78);
  border-radius: 16px;
  padding: 16px 14px;
  text-align: center;
  transition: background 0.55s ease, border-color 0.55s ease, box-shadow 0.55s ease;
}
.dyad-name {
  margin: 0;
  font-family: var(--sans);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-soft);
}
.dyad-card-circuit {
  width: min(100%, 276px);
  height: auto;
  display: block;
  overflow: visible;
}
.dyad-card-circuit .dyad-brain-name {
  font-size: 7.8px;
  letter-spacing: 0.14em;
}
.dyad-card-circuit .dyad-organ-name,
.dyad-card-circuit .dyad-organ-value {
  display: none;
}
.dyad-brain {
  width: min(100%, 210px);
  display: block;
}
.mini-brain {
  display: grid;
  gap: 5px;
}
.mini-brain-svg {
  width: min(100%, 210px);
  height: auto;
  overflow: visible;
}
.mini-brain-svg .brain-layer {
  transform-box: fill-box;
}
.mini-brain-svg .brain-layer .layer-fill {
  filter: brightness(1.04);
}
.mini-brain-svg .brain-layer .layer-label {
  font-size: 10px;
  letter-spacing: 0.14em;
}
.mini-brain-svg .brain-layer .layer-sub {
  font-size: 8px;
  letter-spacing: 0.04em;
}
.dyad-layer {
  border-radius: 999px;
  padding: 8px 10px;
  font-family: var(--sans);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.14em;
  color: var(--ink);
  border: 2px solid transparent;
  transition: filter 0.5s ease, transform 0.5s ease, opacity 0.5s ease, background 0.5s ease;
}
.dyad-layer small {
  display: block;
  margin-top: 1px;
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.04em;
  opacity: 0.65;
}
.dyad-layer.cortex {
  background: var(--cortex-soft);
  border-color: var(--cortex-deep);
}
.dyad-layer.limbic {
  background: var(--limbic-soft);
  border-color: var(--limbic-deep);
}
.dyad-layer.stem {
  background: var(--brainstem-soft);
  border-color: var(--brainstem-deep);
}
.dyad-vitals {
  width: min(100%, 230px);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}
.signal-vitals {
  display: grid;
  gap: 8px;
}
.dyad-vital {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
  min-width: 0;
  padding: 5px 6px;
  border: 1px solid #ece2cd;
  border-radius: 10px;
  background: rgba(255, 249, 240, 0.72);
  font-family: var(--sans);
  font-size: 11px;
  font-weight: 800;
  color: var(--ink);
}
.signal-vital {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
  min-width: 0;
  border: 1px solid #ece2cd;
  border-radius: 10px;
  background: rgba(255, 249, 240, 0.72);
  font-family: var(--sans);
  font-weight: 800;
  color: var(--ink);
}
.dyad-vital-icon {
  width: 26px;
  height: 26px;
  flex: 0 0 26px;
  overflow: visible;
}
.signal-vital-icon {
  overflow: visible;
}
.dyad-heart-path,
.dyad-lung-path,
.signal-heart-path,
.signal-lung-path {
  transform-box: fill-box;
  transform-origin: center;
  transition: filter 0.35s ease;
}
.dyad-heart-path,
.signal-heart-path {
  transform-origin: 50% 68%;
}
.dyad-person[data-state="calm"] .dyad-heart-path,
.dyad-person[data-state="settling"] .dyad-heart-path {
  animation: organPulseSlow 1.35s ease-in-out infinite;
}
.dyad-person[data-state="calm"] .dyad-lung-path,
.dyad-person[data-state="settling"] .dyad-lung-path {
  animation: organPulseSlow 1.55s ease-in-out infinite;
}
.dyad-person[data-state="alert"] .dyad-heart-path {
  animation: organPulseFast 0.62s ease-in-out infinite;
  filter: drop-shadow(0 0 5px rgba(244, 194, 90, 0.42));
}
.dyad-person[data-state="alert"] .dyad-lung-path {
  animation: organPulseFast 0.78s ease-in-out infinite;
}
.dyad-person[data-state="hot"] .dyad-heart-path {
  animation: organPulseFast 0.36s ease-in-out infinite;
  filter: drop-shadow(0 0 8px rgba(225, 95, 95, 0.58));
}
.dyad-person[data-state="hot"] .dyad-lung-path {
  animation: organPulseFast 0.5s ease-in-out infinite;
  filter: drop-shadow(0 0 6px rgba(168, 58, 58, 0.32));
}
.dyad-meter {
  width: min(100%, 220px);
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 8px;
  align-items: center;
  font-family: var(--sans);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-soft);
}
.dyad-meter-track {
  height: 9px;
  overflow: hidden;
  border-radius: 999px;
  background: #ece2cd;
}
.dyad-meter-fill {
  display: block;
  width: 22%;
  height: 100%;
  border-radius: inherit;
  background: var(--brainstem-deep);
  transition: width 0.55s ease, background 0.55s ease;
}
.dyad-person[data-state="alert"] {
  background: #fff7eb;
  border-color: #ead6bd;
}
.dyad-person[data-state="alert"] .dyad-meter-fill {
  width: 56%;
  background: var(--gold);
}
.dyad-person[data-state="alert"] .dyad-layer.limbic,
.dyad-person[data-state="alert"] .dyad-layer.stem {
  filter: brightness(1.08) drop-shadow(0 0 7px rgba(244, 194, 90, 0.48));
  transform: scale(1.015);
}
.dyad-person[data-state="alert"] .brain-layer[data-region="limbic"] .layer-fill,
.dyad-person[data-state="alert"] .brain-layer[data-region="brainstem"] .layer-fill {
  filter: brightness(1.12) drop-shadow(0 0 8px rgba(244, 194, 90, 0.48));
  animation: layerPulse 0.9s ease-in-out infinite;
}
.dyad-person[data-state="hot"] {
  background: #fff1ec;
  border-color: #efc6ba;
  box-shadow: 0 10px 28px rgba(168, 58, 58, 0.1);
}
.dyad-person[data-state="hot"] .dyad-layer.cortex {
  opacity: 0.55;
  filter: saturate(0.45);
}
.dyad-person[data-state="hot"] .brain-layer[data-region="cortex"] {
  opacity: 0.55;
}
.dyad-person[data-state="hot"] .brain-layer[data-region="cortex"] .layer-fill {
  filter: brightness(0.75) saturate(0.5);
}
.dyad-person[data-state="hot"] .dyad-layer.limbic,
.dyad-person[data-state="hot"] .dyad-layer.stem {
  filter: brightness(1.18) drop-shadow(0 0 14px rgba(168, 58, 58, 0.48));
  animation: dyadLayerPulse 0.65s ease-in-out infinite;
}
.dyad-person[data-state="hot"] .brain-layer[data-region="limbic"] .layer-fill,
.dyad-person[data-state="hot"] .brain-layer[data-region="brainstem"] .layer-fill {
  filter: brightness(1.18) drop-shadow(0 0 14px rgba(168, 58, 58, 0.48));
  animation: layerPulse 0.6s ease-in-out infinite;
}
.dyad-person[data-state="hot"] .dyad-meter-fill {
  width: 92%;
  background: var(--heart-red);
}
.dyad-person[data-state="settling"] {
  background: #f4fbfb;
  border-color: #bddbd6;
}
.dyad-person[data-state="settling"] .dyad-layer.cortex,
.dyad-person[data-state="settling"] .dyad-layer.stem {
  filter: brightness(1.1) drop-shadow(0 0 8px rgba(58, 138, 138, 0.28));
}
.dyad-person[data-state="settling"] .brain-layer[data-region="cortex"] .layer-fill,
.dyad-person[data-state="settling"] .brain-layer[data-region="brainstem"] .layer-fill {
  filter: brightness(1.1) drop-shadow(0 0 8px rgba(58, 138, 138, 0.28));
}
.dyad-person[data-state="settling"] .dyad-meter-fill {
  width: 38%;
  background: #3a8a8a;
}
@keyframes dyadLayerPulse {
  0%, 100% { transform: scale(1); }
  50%      { transform: scale(1.025); }
}
.dyad-loop {
  width: 100%;
  height: clamp(156px, 13vw, 188px);
  min-height: 0;
  align-self: center;
  overflow: visible;
}
.dyad-brain-loop {
  display: block;
}
.dyad-brain-map .brain-layer {
  opacity: 0.86;
  transform-box: fill-box;
  transform-origin: center;
}
.dyad-brain-map .brain-layer image,
.dyad-brain-map .brain-layer .layer-fill {
  filter: brightness(0.98) saturate(0.92);
}
.dyad-brain-map .wiring-brain {
  transform-box: fill-box;
  transform-origin: center;
}
.dyad-body-arrow {
  opacity: 0.48;
  transition: opacity 0.45s ease, filter 0.45s ease;
}
.dyad-heart-path,
.dyad-lung-path {
  transform-box: fill-box;
  transform-origin: center;
  transition: filter 0.45s ease;
}
.dyad-organ-name,
.dyad-organ-value {
  font-family: var(--sans);
  pointer-events: none;
  user-select: none;
}
.dyad-organ-name {
  font-size: 7px;
  font-weight: 900;
  letter-spacing: 0.18em;
  fill: rgba(143, 79, 68, 0.78);
}
.dyad-organ-breath {
  fill: rgba(113, 82, 67, 0.78);
}
.dyad-organ-value {
  font-size: 10px;
  font-weight: 900;
  fill: #a83a3a;
}
.dyad-organ-breath-value {
  fill: #8a6450;
}
.dyad-organ-value .unit {
  font-size: 7px;
  font-weight: 800;
}
.dyad-brain-name {
  font-family: var(--sans);
  font-size: 9px;
  font-weight: 900;
  letter-spacing: 0.16em;
  fill: var(--ink-soft);
}
.dyad-region-label {
  font-family: var(--sans);
  font-size: 8.5px;
  font-weight: 900;
  letter-spacing: 0.02em;
  fill: rgba(45, 42, 49, 0.78);
  pointer-events: none;
  user-select: none;
}
#dyad-stage[data-phase="bump"] .nora-brain .brain-layer[data-region="limbic"] .layer-fill,
#dyad-stage[data-phase="bump"] .nora-brain .brain-layer[data-region="limbic"] image,
#dyad-stage[data-phase="bump"] .nora-brain .brain-layer[data-region="brainstem"] .layer-fill,
#dyad-stage[data-phase="bump"] .nora-brain .brain-layer[data-region="brainstem"] image,
#dyad-stage[data-phase="b-reads"] .nora-brain .brain-layer[data-region="limbic"] .layer-fill,
#dyad-stage[data-phase="b-reads"] .nora-brain .brain-layer[data-region="limbic"] image,
#dyad-stage[data-phase="b-reads"] .nora-brain .brain-layer[data-region="brainstem"] .layer-fill,
#dyad-stage[data-phase="b-reads"] .nora-brain .brain-layer[data-region="brainstem"] image,
#dyad-stage[data-phase="b-reads"] .jules-brain .brain-layer[data-region="limbic"] .layer-fill,
#dyad-stage[data-phase="b-reads"] .jules-brain .brain-layer[data-region="limbic"] image,
#dyad-stage[data-phase="b-reads"] .jules-brain .brain-layer[data-region="brainstem"] .layer-fill,
#dyad-stage[data-phase="b-reads"] .jules-brain .brain-layer[data-region="brainstem"] image {
  filter: brightness(1.12) saturate(1.08) drop-shadow(0 0 8px rgba(244, 194, 90, 0.58));
  animation: layerPulse 0.88s ease-in-out infinite;
}
#dyad-stage[data-phase="escalate"] .dyad-brain-map .brain-layer[data-region="limbic"] .layer-fill,
#dyad-stage[data-phase="escalate"] .dyad-brain-map .brain-layer[data-region="limbic"] image,
#dyad-stage[data-phase="escalate"] .dyad-brain-map .brain-layer[data-region="brainstem"] .layer-fill,
#dyad-stage[data-phase="escalate"] .dyad-brain-map .brain-layer[data-region="brainstem"] image,
#dyad-stage[data-phase="peak"] .dyad-brain-map .brain-layer[data-region="limbic"] .layer-fill,
#dyad-stage[data-phase="peak"] .dyad-brain-map .brain-layer[data-region="limbic"] image,
#dyad-stage[data-phase="peak"] .dyad-brain-map .brain-layer[data-region="brainstem"] .layer-fill,
#dyad-stage[data-phase="peak"] .dyad-brain-map .brain-layer[data-region="brainstem"] image {
  filter: brightness(1.18) saturate(1.2) drop-shadow(0 0 11px rgba(168, 58, 58, 0.62));
  animation: layerPulse 0.58s ease-in-out infinite;
}
#dyad-stage[data-phase="escalate"] .dyad-brain-map .brain-layer[data-region="cortex"] .layer-fill,
#dyad-stage[data-phase="escalate"] .dyad-brain-map .brain-layer[data-region="cortex"] image,
#dyad-stage[data-phase="peak"] .dyad-brain-map .brain-layer[data-region="cortex"] .layer-fill,
#dyad-stage[data-phase="peak"] .dyad-brain-map .brain-layer[data-region="cortex"] image {
  filter: brightness(0.72) saturate(0.45);
}
#dyad-stage[data-phase="breath"] .nora-brain .brain-layer[data-region="cortex"] .layer-fill,
#dyad-stage[data-phase="breath"] .nora-brain .brain-layer[data-region="cortex"] image,
#dyad-stage[data-phase="breath"] .nora-brain .brain-layer[data-region="brainstem"] .layer-fill,
#dyad-stage[data-phase="breath"] .nora-brain .brain-layer[data-region="brainstem"] image,
#dyad-stage[data-phase="settle"] .dyad-brain-map .brain-layer[data-region="cortex"] .layer-fill,
#dyad-stage[data-phase="settle"] .dyad-brain-map .brain-layer[data-region="cortex"] image,
#dyad-stage[data-phase="settle"] .dyad-brain-map .brain-layer[data-region="brainstem"] .layer-fill,
#dyad-stage[data-phase="settle"] .dyad-brain-map .brain-layer[data-region="brainstem"] image {
  filter: brightness(1.12) saturate(1.04) drop-shadow(0 0 8px rgba(58, 138, 138, 0.48));
  animation: layerPulse 1.1s ease-in-out infinite;
}
#dyad-stage[data-phase="breath"] .jules-brain .brain-layer[data-region="limbic"] .layer-fill,
#dyad-stage[data-phase="breath"] .jules-brain .brain-layer[data-region="limbic"] image,
#dyad-stage[data-phase="breath"] .jules-brain .brain-layer[data-region="brainstem"] .layer-fill,
#dyad-stage[data-phase="breath"] .jules-brain .brain-layer[data-region="brainstem"] image {
  filter: brightness(1.1) saturate(1.05) drop-shadow(0 0 7px rgba(244, 194, 90, 0.5));
}
#dyad-stage[data-phase="bump"] .nora-brain .dyad-heart-path,
#dyad-stage[data-phase="bump"] .nora-brain .dyad-lung-path,
#dyad-stage[data-phase="b-reads"] .dyad-brain-map .dyad-heart-path,
#dyad-stage[data-phase="b-reads"] .dyad-brain-map .dyad-lung-path,
#dyad-stage[data-phase="escalate"] .dyad-brain-map .dyad-heart-path,
#dyad-stage[data-phase="escalate"] .dyad-brain-map .dyad-lung-path,
#dyad-stage[data-phase="peak"] .dyad-brain-map .dyad-heart-path,
#dyad-stage[data-phase="peak"] .dyad-brain-map .dyad-lung-path {
  animation: organPulseFast 0.48s ease-in-out infinite;
  filter: drop-shadow(0 0 6px rgba(168, 58, 58, 0.34));
}
#dyad-stage[data-phase="breath"] .nora-brain .dyad-heart-path,
#dyad-stage[data-phase="breath"] .nora-brain .dyad-lung-path,
#dyad-stage[data-phase="settle"] .dyad-brain-map .dyad-heart-path,
#dyad-stage[data-phase="settle"] .dyad-brain-map .dyad-lung-path {
  animation: organPulseSlow 1.35s ease-in-out infinite;
  filter: drop-shadow(0 0 5px rgba(58, 138, 138, 0.28));
}
#dyad-stage[data-phase="bump"] .nora-brain .dyad-body-arrow,
#dyad-stage[data-phase="b-reads"] .dyad-brain-map .dyad-body-arrow,
#dyad-stage[data-phase="escalate"] .dyad-brain-map .dyad-body-arrow,
#dyad-stage[data-phase="peak"] .dyad-brain-map .dyad-body-arrow,
#dyad-stage[data-phase="breath"] .nora-brain .dyad-body-arrow,
#dyad-stage[data-phase="settle"] .dyad-brain-map .dyad-body-arrow {
  opacity: 0.82;
  filter: drop-shadow(0 0 5px rgba(90, 122, 90, 0.4));
}
.dyad-center {
  display: grid;
  grid-template-rows: auto;
  gap: 0;
  align-items: center;
  position: relative;
}
.dyad-event {
  min-height: 262px;
  display: grid;
  align-content: center;
  gap: 7px;
  padding: 10px 12px;
  border-radius: 15px;
  border: 1px solid rgba(230, 225, 214, 0.82);
  background: #fffdf9;
  box-shadow: 0 6px 18px rgba(74, 107, 102, 0.04);
  text-align: center;
}
.dyad-event-kicker {
  margin: 0;
  font-family: var(--sans);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-soft);
}
.dyad-scene {
  position: relative;
  height: 210px;
  overflow: visible;
}
.courtyard-line {
  position: absolute;
  left: 9%;
  right: 9%;
  bottom: 20px;
  height: 8px;
  border-radius: 999px;
  background: #9fbfb8;
  box-shadow: 0 5px 0 rgba(74, 107, 102, 0.16);
}
.dyad-child {
  position: absolute;
  bottom: 18px;
  width: 68px;
  height: 128px;
  z-index: 3;
  --skin: #f7d9c4;
  --skin-line: #a8745a;
  --hair: #7a4a2a;
  --shirt: #f4a6b5;
  --shirt-dark: #e08896;
  --pants: #5a6fa8;
  --pants-dark: #3a4f80;
  --shoe: #38353a;
  --cheek: #eaa0a9;
  transform-origin: 50% 100%;
  transition: transform 0.65s cubic-bezier(0.22, 1, 0.36, 1);
}
.dyad-child.nora { left: 7%; }
.dyad-child.jules {
  right: 7%;
  --hair: #6b4a3c;
  --shirt: #7aa59e;
  --shirt-dark: #5f8d87;
}
.dyad-child-head,
.dyad-child-body,
.dyad-child-arm,
.dyad-child-leg,
.dyad-child-ear,
.dyad-child-hair,
.dyad-child-cheek,
.dyad-child-brow,
.dyad-child-eye,
.dyad-child-nose,
.dyad-child-mouth,
.dyad-child-sweat {
  position: absolute;
  pointer-events: none;
}
.dyad-child-head {
  left: 50%;
  top: 0;
  width: 50px;
  height: 50px;
  border: 2px solid var(--skin-line);
  border-radius: 50%;
  background:
    radial-gradient(circle at 50% 56%, rgba(197, 138, 122, 0.18) 0 3px, transparent 3.5px),
    var(--skin);
  box-shadow:
    inset 0 -6px 0 rgba(168, 116, 90, 0.1),
    0 7px 12px rgba(74, 107, 102, 0.08);
  transform: translateX(-50%);
  transition: background 0.35s ease, border-color 0.35s ease, transform 0.35s ease;
  z-index: 4;
  overflow: visible;
}
.dyad-child.nora .dyad-child-head {
  transform: translateX(-50%) rotate(2deg);
}
.dyad-child.jules .dyad-child-head {
  transform: translateX(-50%) rotate(-2deg);
}
.dyad-child-ear {
  top: 17px;
  width: 9px;
  height: 11px;
  border: 1.5px solid var(--skin-line);
  border-radius: 50%;
  background: var(--skin);
  box-shadow: inset 0 -2px 0 rgba(168, 116, 90, 0.1);
  z-index: -1;
}
.dyad-child-ear.left {
  left: -5px;
  transform: rotate(-16deg);
}
.dyad-child-ear.right {
  right: -5px;
  transform: rotate(16deg);
}
.dyad-child-hair {
  display: none;
}
.dyad-child-hair::before,
.dyad-child-hair::after {
  content: none;
}
.dyad-child.jules .dyad-child-hair {
  left: 10px;
  width: 30px;
}
.dyad-child-cheek {
  top: 30px;
  width: 5.8px;
  height: 5.8px;
  border-radius: 50%;
  background: var(--cheek);
  opacity: 0.32;
  transition: opacity 0.35s ease, transform 0.35s ease;
}
.dyad-child-cheek.left { left: 10px; }
.dyad-child-cheek.right { right: 10px; }
.dyad-child-brow {
  top: 17px;
  width: 10px;
  height: 4px;
  border-top: 2px solid #5c3a2a;
  border-radius: 50%;
  opacity: 0.66;
  z-index: 3;
  transition: transform 0.35s ease, top 0.35s ease, opacity 0.35s ease;
}
.dyad-child-brow.left { left: 13px; transform: rotate(8deg); }
.dyad-child-brow.right { right: 13px; transform: rotate(-8deg); }
.dyad-child-eye {
  top: 22px;
  width: 7.5px;
  height: 7.8px;
  border: 1px solid rgba(92, 58, 42, 0.24);
  border-radius: 50%;
  background: #fffdf9;
  box-shadow: inset 0 -1px 0 rgba(168, 116, 90, 0.12);
  z-index: 3;
  transition: transform 0.35s ease, height 0.35s ease, top 0.35s ease;
}
.dyad-child-eye::before {
  content: "";
  position: absolute;
  left: 2.4px;
  top: 2.8px;
  width: 3.6px;
  height: 3.6px;
  border-radius: 50%;
  background: #38353a;
  transition: transform 0.35s ease, width 0.35s ease, height 0.35s ease;
}
.dyad-child-eye::after {
  content: "";
  position: absolute;
  left: 4.2px;
  top: 2px;
  width: 1.3px;
  height: 1.3px;
  border-radius: 50%;
  background: white;
}
.dyad-child-eye.left { left: 15px; }
.dyad-child-eye.right { right: 15px; }
.dyad-child.nora .dyad-child-eye::before {
  transform: translateX(0.9px);
}
.dyad-child.jules .dyad-child-eye::before {
  transform: translateX(-0.9px);
}
.dyad-child-nose {
  left: 50%;
  top: 29px;
  width: 2.6px;
  height: 2px;
  border-radius: 50%;
  background: #c58a7a;
  opacity: 0.42;
  transform: translateX(-50%);
  z-index: 3;
}
.dyad-child-mouth {
  left: 18px;
  top: 35px;
  width: 14px;
  height: 6px;
  border-bottom: 2px solid #38353a;
  border-radius: 50%;
  z-index: 3;
  transition: transform 0.35s ease, top 0.35s ease, left 0.35s ease, width 0.35s ease, height 0.35s ease, border 0.35s ease, background 0.35s ease;
}
.dyad-child-sweat {
  width: 7px;
  height: 10px;
  border-radius: 50% 50% 55% 45%;
  background: #8fc9df;
  opacity: 0;
  transform: rotate(14deg) scale(0.82);
  transition: opacity 0.3s ease, transform 0.35s ease;
  z-index: 5;
}
.dyad-child-sweat.one {
  right: -2px;
  top: 9px;
}
.dyad-child-sweat.two {
  left: -2px;
  top: 15px;
  width: 5px;
  height: 8px;
  transform: rotate(-18deg) scale(0.72);
}
.dyad-child-body {
  left: 50%;
  top: 53px;
  width: 34px;
  height: 42px;
  border-radius: 12px 12px 8px 8px;
  background: var(--shirt);
  border: 1px solid rgba(92, 58, 42, 0.08);
  box-shadow: inset 0 -6px 0 rgba(92, 58, 42, 0.08);
  transform: translateX(-50%);
  transform-origin: 50% 100%;
  z-index: 2;
  transition: transform 0.35s ease, background 0.35s ease;
}
.dyad-child-body::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 3px;
  width: 12px;
  height: 9px;
  border-radius: 0 0 8px 8px;
  background: rgba(255, 253, 249, 0.66);
  transform: translateX(-50%);
  clip-path: polygon(0 0, 50% 100%, 100% 0);
}
.dyad-child-arm {
  top: 59px;
  width: 8.5px;
  height: 34px;
  border-radius: 999px;
  background: var(--shirt-dark);
  box-shadow: inset 0 -2px 0 rgba(92, 58, 42, 0.08);
  transform-origin: 50% 4px;
  transition: transform 0.45s ease;
  z-index: 3;
}
.dyad-child-arm::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: -5px;
  width: 8px;
  height: 8px;
  border: 1px solid var(--skin-line);
  border-radius: 50%;
  background: var(--skin);
  transform: translateX(-50%);
}
.dyad-child-arm.back {
  left: 12px;
  transform: rotate(8deg);
}
.dyad-child-arm.front {
  right: 12px;
  transform: rotate(-8deg);
}
.dyad-child-leg {
  top: 91px;
  width: 8.5px;
  height: 32px;
  border-radius: 999px;
  background: var(--pants);
  box-shadow: inset 0 -4px 0 rgba(35, 43, 77, 0.14);
  transform-origin: 50% 0%;
  transition: transform 0.45s ease;
  z-index: 1;
}
.dyad-child-leg::after {
  content: "";
  position: absolute;
  left: -2px;
  bottom: -4px;
  width: 16px;
  height: 7px;
  border-radius: 7px 9px 4px 4px;
  background: var(--shoe);
  box-shadow: inset 0 -1px 0 rgba(247, 217, 196, 0.3);
}
.dyad-child-leg.back {
  left: 25px;
  background: var(--pants-dark);
}
.dyad-child-leg.front { right: 25px; }
.dyad-child::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: -5px;
  width: 56px;
  height: 7px;
  border-radius: 50%;
  background: rgba(74, 107, 102, 0.14);
  transform: translateX(-50%);
}
.dyad-speech {
  position: absolute;
  top: 4px;
  z-index: 6;
  width: clamp(108px, 34%, 136px);
  min-height: 42px;
  display: grid;
  place-items: center;
  padding: 7px 10px;
  border: 1.5px solid #e5ded1;
  border-radius: 15px;
  background: rgba(255, 255, 255, 0.96);
  box-shadow: 0 8px 18px rgba(74, 107, 102, 0.12);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 12px;
  font-weight: 800;
  line-height: 1.14;
  text-align: center;
  overflow-wrap: anywhere;
  transition:
    border-color 0.35s ease,
    background 0.35s ease,
    color 0.35s ease,
    transform 0.35s ease;
}
.dyad-speech::after {
  content: "";
  position: absolute;
  bottom: -7px;
  width: 12px;
  height: 12px;
  border-right: 1.5px solid #e5ded1;
  border-bottom: 1.5px solid #e5ded1;
  background: inherit;
  transform: rotate(45deg);
  transition: border-color 0.35s ease;
}
.dyad-speech.nora {
  left: 3%;
}
.dyad-speech.nora::after {
  left: 36px;
}
.dyad-speech.jules {
  right: 3%;
}
.dyad-speech.jules::after {
  right: 36px;
}
#dyad-stage[data-phase="bump"] .dyad-speech.nora,
#dyad-stage[data-phase="b-reads"] .dyad-speech.nora,
#dyad-stage[data-phase="escalate"] .dyad-speech,
#dyad-stage[data-phase="peak"] .dyad-speech {
  border-color: #efc6ba;
  background: #fff5ef;
  color: #8f3838;
}
#dyad-stage[data-phase="b-reads"] .dyad-speech.jules,
#dyad-stage[data-phase="breath"] .dyad-speech.jules {
  border-color: rgba(244, 194, 90, 0.48);
  background: #fff8ec;
  color: #8b5d21;
}
#dyad-stage[data-phase="breath"] .dyad-speech.nora,
#dyad-stage[data-phase="settle"] .dyad-speech {
  border-color: #bddbd6;
  background: #f4fbfb;
  color: var(--brainstem-deep);
}
#dyad-stage[data-phase="escalate"] .dyad-speech.nora,
#dyad-stage[data-phase="peak"] .dyad-speech.nora {
  transform: translateX(5px);
}
#dyad-stage[data-phase="escalate"] .dyad-speech.jules,
#dyad-stage[data-phase="peak"] .dyad-speech.jules {
  transform: translateX(-5px);
}
#dyad-stage[data-phase="calm"] .dyad-child,
#dyad-stage[data-phase="settle"] .dyad-child {
  animation: dyadChildBreathe 2.8s ease-in-out infinite;
}
#dyad-stage[data-phase="bump"] .dyad-child.nora {
  transform: translateX(-12px) rotate(-5deg);
}
#dyad-stage[data-phase="bump"] .dyad-child.jules {
  transform: translateX(-24px) rotate(-8deg);
}
#dyad-stage[data-phase="bump"] .dyad-child.jules .dyad-child-arm.front {
  transform: rotate(-128deg);
}
#dyad-stage[data-phase="bump"] .dyad-child.nora .dyad-child-head {
  transform: translateX(-50%) rotate(-7deg);
}
#dyad-stage[data-phase="bump"] .dyad-child.nora .dyad-child-body {
  transform: translateX(-50%) rotate(-5deg);
}
#dyad-stage[data-phase="bump"] .dyad-child.nora .dyad-child-arm.back {
  transform: translateX(-2px) rotate(132deg);
}
#dyad-stage[data-phase="bump"] .dyad-child.nora .dyad-child-arm.front {
  transform: translateX(2px) rotate(-138deg);
}
#dyad-stage[data-phase="bump"] .dyad-child.nora .dyad-child-leg.back {
  transform: rotate(12deg);
}
#dyad-stage[data-phase="bump"] .dyad-child.nora .dyad-child-leg.front {
  transform: translateY(-2px) rotate(-18deg);
}
#dyad-stage[data-phase="bump"] .dyad-child.jules .dyad-child-head {
  transform: translateX(-50%) rotate(-4deg);
}
#dyad-stage[data-phase="bump"] .dyad-child.jules .dyad-child-arm.back {
  transform: rotate(14deg);
}
#dyad-stage[data-phase="bump"] .dyad-child.jules .dyad-child-leg.front {
  transform: translateY(-1px) rotate(-10deg);
}
#dyad-stage[data-phase="b-reads"] .dyad-child.nora {
  transform: translateX(-16px) translateY(2px) rotate(-4deg);
}
#dyad-stage[data-phase="b-reads"] .dyad-child.jules {
  transform: translateX(14px) translateY(1px) rotate(4deg);
}
#dyad-stage[data-phase="b-reads"] .dyad-child .dyad-child-head {
  transform: translateX(-50%) rotate(-3deg);
}
#dyad-stage[data-phase="b-reads"] .dyad-child.nora .dyad-child-arm.front {
  transform: translateX(1px) rotate(-22deg);
}
#dyad-stage[data-phase="b-reads"] .dyad-child.jules .dyad-child-arm.back {
  transform: translateX(-1px) rotate(18deg);
}
#dyad-stage[data-phase="b-reads"] .dyad-child.jules .dyad-child-arm.front {
  transform: translateX(1px) rotate(-116deg);
}
#dyad-stage[data-phase="escalate"] .dyad-child.nora,
#dyad-stage[data-phase="peak"] .dyad-child.nora {
  transform: translateX(12px) translateY(3px) rotate(4deg);
  animation: dyadChildTremble 0.42s ease-in-out infinite;
}
#dyad-stage[data-phase="escalate"] .dyad-child.jules,
#dyad-stage[data-phase="peak"] .dyad-child.jules {
  transform: translateX(-12px) translateY(3px) rotate(-4deg);
  animation: dyadChildTremble 0.42s ease-in-out infinite reverse;
}
#dyad-stage[data-phase="escalate"] .dyad-child .dyad-child-body,
#dyad-stage[data-phase="peak"] .dyad-child .dyad-child-body {
  transform: translateX(-50%) scaleY(0.98);
}
#dyad-stage[data-phase="escalate"] .dyad-child .dyad-child-arm.back,
#dyad-stage[data-phase="peak"] .dyad-child .dyad-child-arm.back {
  transform: rotate(126deg);
}
#dyad-stage[data-phase="escalate"] .dyad-child .dyad-child-arm.front,
#dyad-stage[data-phase="peak"] .dyad-child .dyad-child-arm.front {
  transform: rotate(-126deg);
}
#dyad-stage[data-phase="escalate"] .dyad-child.nora .dyad-child-leg.front,
#dyad-stage[data-phase="peak"] .dyad-child.nora .dyad-child-leg.front {
  transform: rotate(-7deg);
}
#dyad-stage[data-phase="escalate"] .dyad-child.jules .dyad-child-leg.back,
#dyad-stage[data-phase="peak"] .dyad-child.jules .dyad-child-leg.back {
  transform: rotate(7deg);
}
#dyad-stage[data-phase="breath"] .dyad-child.nora {
  animation: dyadChildBreathe 1.8s ease-in-out infinite;
  transform: translateX(-2px);
}
#dyad-stage[data-phase="breath"] .dyad-child.jules {
  transform: translateX(-4px) translateY(2px) rotate(-2deg);
}
#dyad-stage[data-phase="breath"] .dyad-child.nora .dyad-child-head {
  transform: translateX(-50%) rotate(2deg);
}
#dyad-stage[data-phase="breath"] .dyad-child.nora .dyad-child-body {
  transform: translateX(-50%) scaleY(1.03);
}
#dyad-stage[data-phase="breath"] .dyad-child.nora .dyad-child-arm.back {
  transform: rotate(8deg);
}
#dyad-stage[data-phase="breath"] .dyad-child.jules .dyad-child-arm.front {
  transform: translateX(1px) rotate(-18deg);
}
#dyad-stage[data-phase="bump"] .dyad-child.nora .dyad-child-head,
#dyad-stage[data-phase="b-reads"] .dyad-child .dyad-child-head,
#dyad-stage[data-phase="escalate"] .dyad-child .dyad-child-head,
#dyad-stage[data-phase="peak"] .dyad-child .dyad-child-head {
  background: #f0c6b8;
  border-color: #a83a3a;
}
#dyad-stage[data-phase="bump"] .dyad-child.nora .dyad-child-mouth {
  left: 21px;
  top: 34px;
  width: 8px;
  height: 9px;
  border: 0;
  border-radius: 50%;
  background: #5b3432;
  transform: none;
}
#dyad-stage[data-phase="bump"] .dyad-child.jules .dyad-child-mouth {
  top: 37px;
  transform: rotate(180deg);
}
#dyad-stage[data-phase="bump"] .dyad-child.nora .dyad-child-brow.left,
#dyad-stage[data-phase="bump"] .dyad-child.jules .dyad-child-brow.left {
  top: 15px;
  transform: rotate(-16deg);
}
#dyad-stage[data-phase="bump"] .dyad-child.nora .dyad-child-brow.right,
#dyad-stage[data-phase="bump"] .dyad-child.jules .dyad-child-brow.right {
  top: 15px;
  transform: rotate(16deg);
}
#dyad-stage[data-phase="bump"] .dyad-child.nora .dyad-child-sweat.one,
#dyad-stage[data-phase="b-reads"] .dyad-child.jules .dyad-child-sweat.one,
#dyad-stage[data-phase="escalate"] .dyad-child .dyad-child-sweat.one,
#dyad-stage[data-phase="peak"] .dyad-child .dyad-child-sweat.one {
  opacity: 0.9;
  transform: rotate(14deg) scale(1);
}
#dyad-stage[data-phase="b-reads"] .dyad-child .dyad-child-mouth,
#dyad-stage[data-phase="breath"] .dyad-child.jules .dyad-child-mouth {
  top: 37px;
  transform: rotate(180deg);
}
#dyad-stage[data-phase="b-reads"] .dyad-child .dyad-child-brow.left,
#dyad-stage[data-phase="breath"] .dyad-child.jules .dyad-child-brow.left {
  transform: rotate(-13deg);
}
#dyad-stage[data-phase="b-reads"] .dyad-child .dyad-child-brow.right,
#dyad-stage[data-phase="breath"] .dyad-child.jules .dyad-child-brow.right {
  transform: rotate(13deg);
}
#dyad-stage[data-phase="escalate"] .dyad-child .dyad-child-mouth,
#dyad-stage[data-phase="peak"] .dyad-child .dyad-child-mouth {
  top: 37px;
  transform: rotate(180deg);
}
#dyad-stage[data-phase="escalate"] .dyad-child .dyad-child-brow.left,
#dyad-stage[data-phase="peak"] .dyad-child .dyad-child-brow.left {
  top: 15px;
  opacity: 0.95;
  transform: rotate(-24deg);
}
#dyad-stage[data-phase="escalate"] .dyad-child .dyad-child-brow.right,
#dyad-stage[data-phase="peak"] .dyad-child .dyad-child-brow.right {
  top: 15px;
  opacity: 0.95;
  transform: rotate(24deg);
}
#dyad-stage[data-phase="escalate"] .dyad-child .dyad-child-eye::before,
#dyad-stage[data-phase="peak"] .dyad-child .dyad-child-eye::before {
  width: 3px;
  height: 3px;
}
#dyad-stage[data-phase="breath"] .dyad-child.nora .dyad-child-mouth {
  left: 19px;
  top: 36px;
  width: 12px;
  height: 4px;
  border-bottom-color: #3a5d5d;
}
#dyad-stage[data-phase="breath"] .dyad-child.nora .dyad-child-eye {
  height: 5px;
  top: 24px;
}
#dyad-stage[data-phase="breath"] .dyad-child.nora .dyad-child-arm.front {
  transform: translateX(-2px) translateY(-1px) rotate(-78deg);
}
#dyad-stage[data-phase="settle"] .dyad-child-mouth {
  left: 18px;
  top: 35px;
  width: 14px;
  height: 6px;
  border: 0;
  border-bottom: 2px solid #38353a;
  background: transparent;
  transform: none;
}
#dyad-stage[data-phase="settle"] .dyad-child-brow.left {
  transform: rotate(8deg);
}
#dyad-stage[data-phase="settle"] .dyad-child-brow.right {
  transform: rotate(-8deg);
}
@keyframes dyadChildBreathe {
  0%, 100% { translate: 0 0; }
  50% { translate: 0 -2px; }
}
@keyframes dyadChildTremble {
  0%, 100% { translate: 0 0; }
  33% { translate: -1px 0; }
  66% { translate: 1px 1px; }
}
.dyad-scene-loop {
  position: absolute;
  inset: 8px 0 16px;
  z-index: 1;
  width: 100%;
  height: calc(100% - 24px);
  pointer-events: none;
  overflow: visible;
}

/* Block towers — each is a vertical stack of three blocks. The whole
   tower pivots around its base center. Nora's topples in the "bump" beat
   and stays fallen for the rest. Jules's stays upright the entire time. */
.block-tower {
  position: absolute;
  bottom: 26px;
  width: 26px;
  height: 63px;
  display: flex;
  flex-direction: column;
  transform-origin: 50% 100%;
  transition: transform 0.65s cubic-bezier(0.22, 0.85, 0.42, 1);
  z-index: 3;
}
.block-tower.nora  { left:  calc(50% - 46px); }
.block-tower.jules { right: calc(50% - 46px); }
.block {
  width: 26px;
  height: 21px;
  border: 2px solid #a07d50;
  background: #d8b88a;
  border-radius: 3px;
  box-sizing: border-box;
  box-shadow: inset 0 2px 0 rgba(255, 248, 232, 0.4);
}
.block.top  { background: #e7c89c; }
.block.mid  { background: #d8b88a; }
.block.base { background: #c2a374; }
.castle-bridge {
  position: absolute;
  left: 50%;
  bottom: 26px;
  z-index: 2;
  width: 64px;
  height: 38px;
  transform: translateX(-50%);
  transform-origin: 50% 100%;
  transition: transform 0.65s cubic-bezier(0.22, 0.85, 0.42, 1);
}
.castle-bridge .block {
  position: absolute;
  bottom: 0;
  width: 22px;
  height: 18px;
}
.castle-bridge .block.left { left: 3px; }
.castle-bridge .block.center {
  left: 50%;
  bottom: 15px;
  transform: translateX(-50%);
  background: #e7c89c;
}
.castle-bridge .block.right { right: 3px; }
.castle-gate {
  position: absolute;
  left: 50%;
  bottom: 0;
  width: 16px;
  height: 21px;
  border: 2px solid rgba(92, 62, 48, 0.42);
  border-bottom: 0;
  border-radius: 9px 9px 2px 2px;
  background: rgba(255, 248, 232, 0.5);
  transform: translateX(-50%);
  box-sizing: border-box;
}

#dyad-stage[data-phase="bump"] .block-tower.nora {
  animation: towerTopple 0.7s cubic-bezier(0.35, 0, 0.55, 1) 1 forwards;
}
#dyad-stage[data-phase="bump"] .castle-bridge {
  animation: castleJolt 0.7s cubic-bezier(0.35, 0, 0.55, 1) 1 forwards;
}
#dyad-stage[data-phase="b-reads"] .block-tower.nora,
#dyad-stage[data-phase="escalate"] .block-tower.nora,
#dyad-stage[data-phase="peak"] .block-tower.nora,
#dyad-stage[data-phase="breath"] .block-tower.nora {
  transform: translate(-14px, 18px) rotate(-78deg);
}
#dyad-stage[data-phase="b-reads"] .castle-bridge,
#dyad-stage[data-phase="escalate"] .castle-bridge,
#dyad-stage[data-phase="peak"] .castle-bridge,
#dyad-stage[data-phase="breath"] .castle-bridge {
  transform: translateX(-50%) translate(-5px, 4px) rotate(-5deg);
}
@keyframes towerTopple {
  0%   { transform: translate(0, 0)    rotate(0deg); }
  18%  { transform: translate(-2px, 0) rotate(-4deg); }     /* nudged */
  32%  { transform: translate(0, 0)    rotate(3deg); }      /* brief recovery */
  60%  { transform: translate(-7px, 4px)  rotate(-38deg); } /* falling */
  100% { transform: translate(-14px, 18px) rotate(-78deg); }/* fallen */
}
@keyframes castleJolt {
  0%   { transform: translateX(-50%) translate(0, 0) rotate(0deg); }
  22%  { transform: translateX(-50%) translate(-1px, 0) rotate(-2deg); }
  42%  { transform: translateX(-50%) translate(1px, 0) rotate(2deg); }
  100% { transform: translateX(-50%) translate(-5px, 4px) rotate(-5deg); }
}

/* Quarrel marks — alarm indicators above each tower. Nora's lights up
   with the bump; Jules's lights up when he reads her face; both pulse
   harder at peak; Nora's dims when she breathes; both fade on settle. */
.quarrel-mark {
  position: absolute;
  bottom: 88px;
  width: 22px;
  height: 22px;
  display: none;
  place-items: center;
  border-radius: 50%;
  background: #fff5ef;
  border: 2px solid #efc6ba;
  color: #8f3838;
  font-family: var(--sans);
  font-size: 13px;
  font-weight: 900;
  opacity: 0;
  transform: scale(0.75);
  transition: opacity 0.35s ease, transform 0.45s cubic-bezier(0.22, 1.5, 0.36, 1);
}
.quarrel-mark.nora  { left:  calc(34% + 6px); }
.quarrel-mark.jules { right: calc(34% + 6px); }

#dyad-stage[data-phase="bump"]     .quarrel-mark.nora,
#dyad-stage[data-phase="b-reads"]  .quarrel-mark.nora,
#dyad-stage[data-phase="escalate"] .quarrel-mark.nora,
#dyad-stage[data-phase="peak"]     .quarrel-mark.nora,
#dyad-stage[data-phase="b-reads"]  .quarrel-mark.jules,
#dyad-stage[data-phase="escalate"] .quarrel-mark.jules,
#dyad-stage[data-phase="peak"]     .quarrel-mark.jules {
  opacity: 1;
  transform: scale(1);
}
#dyad-stage[data-phase="peak"] .quarrel-mark {
  animation: quarrelShake 0.22s ease-in-out infinite;
}
@keyframes quarrelShake {
  0%, 100% { transform: scale(1) translateX(0); }
  33%      { transform: scale(1.06) translateX(-1.5px); }
  66%      { transform: scale(1.06) translateX(1.5px); }
}
#dyad-stage[data-phase="breath"] .quarrel-mark.nora {
  opacity: 0.28;
  transform: scale(0.82);
}
#dyad-stage[data-phase="breath"] .quarrel-mark.jules {
  opacity: 0.85;
  transform: scale(0.95);
}
#dyad-stage[data-phase="settle"] .quarrel-mark {
  opacity: 0;
  transform: scale(0.7);
}

/* Scene tremble — slow under escalation, faster at peak. */
#dyad-stage[data-phase="escalate"] .dyad-scene {
  animation: blockSceneTremble 0.55s ease-in-out infinite;
}
#dyad-stage[data-phase="peak"] .dyad-scene {
  animation: blockSceneTremble 0.32s ease-in-out infinite;
}
@keyframes blockSceneTremble {
  0%, 100% { transform: translateX(0)    rotate(0deg); }
  33%      { transform: translateX(-1px) rotate(-0.45deg); }
  66%      { transform: translateX(1px)  rotate(0.45deg); }
}

/* Breath puff — drifts up from Nora's side during the breath beat. */
.dyad-breath-puff {
  position: absolute;
  left: calc(9% + 40px);
  bottom: 70px;
  width: 26px;
  height: 14px;
  border-radius: 50%;
  background: radial-gradient(ellipse, rgba(180, 220, 240, 0.9) 0%, rgba(180, 220, 240, 0) 70%);
  opacity: 0;
  transform: scale(0.4);
  pointer-events: none;
  z-index: 4;
}
#dyad-stage[data-phase="breath"] .dyad-breath-puff {
  animation: dyadBreathPuff 2.4s ease-out 1;
}
@keyframes dyadBreathPuff {
  0%   { opacity: 0;   transform: translate(0, 0)      scale(0.4); }
  18%  { opacity: 0.9; transform: translate(2px, -6px) scale(1); }
  100% { opacity: 0;   transform: translate(10px, -38px) scale(1.9); }
}

/* Event text below the scene. */
.dyad-event-text {
  min-height: 1.35em;
  margin: 0;
  font-family: var(--sans);
  font-size: 12.5px;
  font-weight: 800;
  line-height: 1.25;
  color: var(--ink);
  transition: color 0.35s ease;
}
#dyad-stage[data-phase="peak"] .dyad-event-text { color: #8f3838; }

#dyad-stage[data-phase="bump"]     .dyad-event,
#dyad-stage[data-phase="b-reads"]  .dyad-event,
#dyad-stage[data-phase="escalate"] .dyad-event,
#dyad-stage[data-phase="peak"]     .dyad-event {
  border-color: #efc6ba;
  background: #fff8f2;
}
#dyad-stage[data-phase="breath"] .dyad-event,
#dyad-stage[data-phase="settle"] .dyad-event {
  border-color: #bddbd6;
  background: #f8fcfc;
}
.dyad-readout {
  position: absolute;
  width: 1px;
  height: 1px;
  min-height: 0;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  border: 0;
  white-space: nowrap;
}
.dyad-read-kicker {
  margin: 0;
  font-family: var(--sans);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-soft);
}
.dyad-read-primary {
  margin: 0;
  font-family: var(--serif);
  font-size: 20px;
  font-weight: 600;
  font-style: italic;
  line-height: 1.08;
  color: var(--ink);
}
.dyad-stage[data-phase="bump"]     .dyad-readout,
.dyad-stage[data-phase="b-reads"]  .dyad-readout,
.dyad-stage[data-phase="escalate"] .dyad-readout,
.dyad-stage[data-phase="peak"]     .dyad-readout {
  border-color: #efc6ba;
  background: #fff5ef;
  box-shadow: 0 8px 24px rgba(168, 58, 58, 0.1);
}
.dyad-stage[data-phase="bump"]     .dyad-read-primary,
.dyad-stage[data-phase="b-reads"]  .dyad-read-primary,
.dyad-stage[data-phase="escalate"] .dyad-read-primary,
.dyad-stage[data-phase="peak"]     .dyad-read-primary {
  color: #8f3838;
}
.dyad-stage[data-phase="breath"] .dyad-readout,
.dyad-stage[data-phase="settle"] .dyad-readout {
  border-color: #bddbd6;
  background: #f4fbfb;
  box-shadow: 0 8px 24px rgba(58, 138, 138, 0.1);
}
.dyad-stage[data-phase="breath"] .dyad-read-primary,
.dyad-stage[data-phase="settle"] .dyad-read-primary {
  color: var(--brainstem-deep);
}
.dyad-link {
  opacity: 0;
  stroke-dasharray: 280;
  stroke-dashoffset: 280;
  transition: opacity 0.3s ease;
}
.dyad-link.shown {
  opacity: 0.9;
  animation: dyadDrawLink 0.75s ease-out forwards;
}
.dyad-link.hot.shown {
  filter: drop-shadow(0 0 8px rgba(168, 58, 58, 0.45));
}
.dyad-link.safe.shown {
  filter: drop-shadow(0 0 8px rgba(58, 138, 138, 0.38));
}
.dyad-stage[data-phase="escalate"] .dyad-link.hot.shown {
  animation:
    dyadDrawLink 0.75s ease-out forwards,
    dyadLoopPulse 0.9s ease-in-out 0.75s infinite;
}
.dyad-stage[data-phase="peak"] .dyad-link.hot.shown {
  animation:
    dyadDrawLink 0.75s ease-out forwards,
    dyadLoopPulse 0.55s ease-in-out 0.75s infinite;
}
.dyad-pause {
  opacity: 0;
  transform: scale(0.72);
  transform-origin: center;
  transform-box: fill-box;
  transition: opacity 0.35s ease, transform 0.45s cubic-bezier(0.22, 1.5, 0.36, 1);
}
.dyad-pause.shown {
  opacity: 1;
  transform: scale(1);
}
.dyad-loop-word {
  display: none;
}
.dyad-stage[data-phase="escalate"] .hot-word,
.dyad-stage[data-phase="peak"]     .hot-word { opacity: 0; fill: #a83a3a; }
.dyad-stage[data-phase="breath"]   .safe-word,
.dyad-stage[data-phase="settle"]   .safe-word { opacity: 0; fill: #3a8a8a; }
@keyframes dyadDrawLink {
  to { stroke-dashoffset: 0; }
}
@keyframes dyadLoopPulse {
  0%, 100% { opacity: 0.62; stroke-width: 3; }
  50%      { opacity: 1; stroke-width: 4.3; }
}
/* (dyad-caption removed — narration now lives in event-text + read-primary
   to keep the visitor focused on two text streams instead of four.) */
@media (max-width: 760px) {
  .part-dyad > * {
    width: calc(100% - 24px);
    padding-left: 0;
    padding-right: 0;
  }
  .dyad-stage {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 8px;
    border-radius: 18px;
    padding: 12px;
  }
  .part-dyad .part-head {
    margin-bottom: 16px;
  }
  .part-dyad .part-note {
    max-width: 320px;
    font-size: 12px;
    line-height: 1.45;
    margin-left: auto;
    margin-right: auto;
    overflow-wrap: anywhere;
  }
  .dyad-person {
    min-height: 198px;
    gap: 6px;
    padding: 10px 8px;
  }
  .dyad-name {
    font-size: 10px;
    letter-spacing: 0.12em;
  }
  .dyad-card-circuit {
    width: min(100%, 176px);
  }
  .dyad-card-circuit .dyad-brain-name {
    font-size: 7.2px;
  }
  .dyad-brain { gap: 4px; }
  .mini-brain-svg.dyad-brain {
    width: min(100%, 150px);
  }
  .dyad-layer {
    padding: 6px 4px;
    font-size: 9px;
    letter-spacing: 0.08em;
  }
  .dyad-layer small { font-size: 8px; }
  .dyad-vitals {
    gap: 5px;
  }
  .dyad-vital {
    flex-direction: column;
    gap: 2px;
    padding: 4px 3px;
    font-size: 9px;
  }
  .dyad-vital-icon {
    width: 20px;
    height: 20px;
    flex-basis: 20px;
  }
  .dyad-meter {
    grid-template-columns: 1fr;
    gap: 4px;
    font-size: 9px;
  }
  .dyad-meter-label,
  .dyad-meter-value {
    line-height: 1;
  }
  .dyad-center {
    grid-column: 1 / -1;
    grid-row: 2;
    grid-template-columns: minmax(0, 1fr);
    grid-template-rows: auto;
    gap: 0;
  }
  #dyad-a {
    grid-column: 1;
    grid-row: 1;
  }
  #dyad-b {
    grid-column: 2;
    grid-row: 1;
  }
  .dyad-event {
    grid-column: 1 / -1;
    min-height: 250px;
    padding: 8px;
    gap: 8px;
  }
  .dyad-event-kicker {
    font-size: 8px;
    letter-spacing: 0.12em;
  }
  .dyad-scene {
    height: 198px;
  }
  .dyad-speech {
    top: 2px;
    width: calc(50% - 18px);
    min-height: 40px;
    padding: 6px 7px;
    border-radius: 13px;
    font-size: 10.5px;
    line-height: 1.12;
  }
  .dyad-speech.nora {
    left: 2px;
  }
  .dyad-speech.jules {
    right: 2px;
  }
  .dyad-speech.nora::after {
    left: 32px;
  }
  .dyad-speech.jules::after {
    right: 32px;
  }
  .courtyard-line {
    bottom: 18px;
  }
  .block-tower {
    width: 18px;
    height: 46px;
    bottom: 22px;
  }
  .block-tower.nora  { left:  calc(50% - 34px); }
  .block-tower.jules { right: calc(50% - 34px); }
  .block {
    width: 18px;
    height: 15px;
    border-width: 1.5px;
  }
  .castle-bridge {
    bottom: 22px;
    width: 48px;
    height: 29px;
  }
  .castle-bridge .block {
    width: 17px;
    height: 14px;
    border-width: 1.5px;
  }
  .castle-bridge .block.left { left: 2px; }
  .castle-bridge .block.center { bottom: 12px; }
  .castle-bridge .block.right { right: 2px; }
  .castle-gate {
    width: 12px;
    height: 16px;
    border-width: 1.5px;
  }
  #dyad-stage[data-phase="bump"] .block-tower.nora {
    animation-name: towerToppleMobile;
  }
  #dyad-stage[data-phase="b-reads"] .block-tower.nora,
  #dyad-stage[data-phase="escalate"] .block-tower.nora,
  #dyad-stage[data-phase="peak"] .block-tower.nora,
  #dyad-stage[data-phase="breath"] .block-tower.nora {
    transform: translate(-10px, 4px) rotate(-78deg);
  }
  #dyad-stage[data-phase="b-reads"] .castle-bridge,
  #dyad-stage[data-phase="escalate"] .castle-bridge,
  #dyad-stage[data-phase="peak"] .castle-bridge,
  #dyad-stage[data-phase="breath"] .castle-bridge {
    transform: translateX(-50%) translate(-3px, 2px) rotate(-4deg);
  }
  @keyframes towerToppleMobile {
    0%   { transform: translate(0, 0)    rotate(0deg); }
    18%  { transform: translate(-2px, 0) rotate(-4deg); }
    32%  { transform: translate(0, 0)    rotate(3deg); }
    60%  { transform: translate(-6px, 2px)  rotate(-38deg); }
    100% { transform: translate(-10px, 4px) rotate(-78deg); }
  }
  .quarrel-mark {
    bottom: 70px;
    width: 19px;
    height: 19px;
    font-size: 11px;
  }
  .dyad-breath-puff {
    bottom: 62px;
    width: 22px;
    height: 12px;
  }
  .dyad-scene-loop {
    inset: 10px -2px 18px;
    height: calc(100% - 28px);
  }
  .dyad-event-text {
    min-height: 2.4em;
    font-size: 10px;
    line-height: 1.2;
  }
  .dyad-readout {
    grid-column: auto;
    min-height: 0;
    padding: 0;
    gap: 0;
  }
  .dyad-read-kicker {
    font-size: 8px;
    letter-spacing: 0.12em;
  }
  .dyad-read-primary {
    font-size: 17px;
  }
  .dyad-loop {
    grid-column: 1;
    height: 138px;
    min-height: 0;
  }
  .dyad-brain-name {
    font-size: 8.4px;
  }
  .dyad-region-label {
    font-size: 8px;
  }
  .dyad-loop-word {
    display: none;
  }
}
@media (max-width: 420px) {
  .dyad-stage {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 6px;
    padding: 10px;
  }
  .dyad-person {
    min-height: 194px;
  }
  .dyad-loop {
    height: 126px;
  }
}

/* ============== PART 3 GAME CONTROLS ============== */
.dyad-game-hud {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 14px;
}
.dyad-shared-card {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 10px;
  padding: 11px 13px;
  border: 1px solid rgba(220, 232, 220, 0.82);
  border-radius: 14px;
  background: rgba(255, 253, 249, 0.92);
  box-shadow: 0 5px 16px rgba(74, 107, 102, 0.045);
}
.dyad-shared-label,
.dyad-shared-value {
  font-family: var(--sans);
  font-size: 11px;
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-soft);
}
.dyad-shared-track {
  height: 10px;
  overflow: hidden;
  border-radius: 999px;
  background: #ece2cd;
}
.dyad-shared-fill {
  display: block;
  width: 0;
  height: 100%;
  border-radius: inherit;
  transition: width 0.55s ease, background 0.45s ease;
}
.dyad-shared-fill.story { background: var(--heart-red); }
.dyad-stage[data-story="unsure"] ~ .dyad-game-hud .dyad-shared-fill.story { background: var(--gold); }
.dyad-stage[data-story="checking"] ~ .dyad-game-hud .dyad-shared-fill.story,
.dyad-stage[data-story="shared"] ~ .dyad-game-hud .dyad-shared-fill.story { background: #3a8a8a; }
.dyad-shared-fill.repair { background: #3a8a8a; }

.dyad-game-cards {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 10px;
  margin-top: 12px;
}
.dyad-action-card {
  min-height: 82px;
  padding: 12px 9px 13px;
  border: 1.5px solid rgba(220, 232, 220, 0.9);
  border-radius: 14px;
  background: white;
  box-shadow: 0 2px 0 rgba(220, 232, 220, 0.78);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 12px;
  font-weight: 800;
  line-height: 1.2;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  text-align: center;
  transition: transform 0.15s ease, border-color 0.2s ease, background 0.2s ease, box-shadow 0.2s ease, opacity 0.2s ease;
}
.dyad-action-card:hover {
  border-color: #3a8a8a;
  background: #f4fbfb;
  transform: translateY(-2px);
  box-shadow: 0 3px 0 rgba(58, 138, 138, 0.35);
}
.dyad-action-card.warning {
  border-color: rgba(239, 198, 186, 0.8);
}
.dyad-action-card.warning:hover {
  border-color: var(--heart-red);
  background: #fff5ef;
  box-shadow: 0 3px 0 rgba(168, 58, 58, 0.24);
}
.dyad-action-card.pressed {
  animation: cardPress 0.45s ease-out 1;
  border-color: #3a8a8a;
  background: #f4fbfb;
}
.dyad-action-card.warning.pressed {
  border-color: var(--heart-red);
  background: #fff5ef;
}
.dyad-action-card.locked {
  opacity: 0.56;
  pointer-events: none;
}
.dyad-stage[data-mode="intro"] ~ .dyad-game-cards .dyad-action-card {
  opacity: 0.42;
}
.dyad-game-controls {
  display: flex;
  justify-content: center;
  margin-top: 14px;
}

#dyad-stage[data-repair="building"] .block-tower.nora {
  transform: translate(-6px, 8px) rotate(-36deg);
}
#dyad-stage[data-repair="building"] .castle-bridge {
  transform: translateX(-50%) translate(-2px, 2px) rotate(-2deg);
}
#dyad-stage[data-repair="done"] .dyad-event {
  border-color: #bddbd6;
  background: #f8fcfc;
}
.dyad-breath-puff.shown {
  animation: dyadBreathPuff 2.4s ease-out 1;
}

@media (max-width: 760px) {
  .dyad-game-hud {
    grid-template-columns: 1fr;
    gap: 8px;
    margin-top: 10px;
  }
  .dyad-shared-card {
    padding: 9px 10px;
    gap: 8px;
  }
  .dyad-shared-label,
  .dyad-shared-value {
    font-size: 9px;
    letter-spacing: 0.1em;
  }
  .dyad-game-cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
    margin-top: 10px;
  }
  .dyad-action-card {
    min-height: 72px;
    padding: 10px 7px;
    border-radius: 12px;
    font-size: 11px;
  }
  .dyad-action-card .card-emoji {
    font-size: 23px;
  }
  .dyad-action-card[data-dyad-action="blame"] {
    grid-column: 1 / -1;
    min-height: 58px;
  }
  #dyad-stage[data-repair="building"] .block-tower.nora {
    transform: translate(-5px, 3px) rotate(-36deg);
  }
  #dyad-stage[data-repair="building"] .castle-bridge {
    transform: translateX(-50%) translate(-2px, 1px) rotate(-2deg);
  }
}

/* ====================== PART 4 — LITERARY LENS ====================== */
.part-literary {
  max-width: none;
  background:
    radial-gradient(ellipse at 18% 22%, rgba(159, 178, 212, 0.2), transparent 48%),
    radial-gradient(ellipse at 84% 72%, rgba(244, 166, 181, 0.18), transparent 52%),
    linear-gradient(180deg, #f7fbfb 0%, #fff9f0 100%);
}
.part-literary > * {
  max-width: 1180px;
  margin-left: auto;
  margin-right: auto;
  padding-left: clamp(20px, 5vw, 56px);
  padding-right: clamp(20px, 5vw, 56px);
}
.lit-stage {
  display: grid;
  grid-template-columns: minmax(230px, 0.82fr) minmax(360px, 1.16fr) minmax(230px, 0.82fr);
  gap: 18px;
  align-items: stretch;
  padding: 24px;
  border: 1px solid #dce8dc;
  border-radius: 24px;
  background: rgba(255, 253, 249, 0.88);
  box-shadow: 0 14px 38px rgba(74, 107, 102, 0.08);
}
.lit-scene-panel,
.lit-mind {
  border: 1.5px solid #e6e1d6;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.9);
  box-shadow: 0 8px 24px rgba(74, 107, 102, 0.07);
}
.lit-scene-panel {
  grid-column: 2;
  grid-row: 1;
  display: grid;
  grid-template-rows: auto 1fr auto;
  gap: 12px;
  padding: 18px;
  min-height: 410px;
}
.lit-bookline,
.lit-mind-kicker {
  margin: 0;
  font-family: var(--sans);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-soft);
}
.lit-ballroom {
  position: relative;
  min-height: 300px;
  overflow: hidden;
  border-radius: 16px;
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.24) 1px, transparent 1px),
    linear-gradient(180deg, #edf5f3 0%, #fdf1df 68%, #dec49f 100%);
  background-size: 38px 100%, 100% 100%;
  border: 1px solid #d8e2de;
}
.lit-arch {
  position: absolute;
  top: 34px;
  width: 76px;
  height: 150px;
  border: 2px solid rgba(74, 107, 102, 0.18);
  border-bottom: 0;
  border-radius: 44px 44px 0 0;
}
.lit-arch.arch-left { left: 26px; }
.lit-arch.arch-right { right: 26px; }
.lit-chandelier {
  position: absolute;
  top: 0;
  left: 50%;
  width: 2px;
  height: 70px;
  background: rgba(56, 53, 58, 0.28);
}
.lit-chandelier::before {
  content: "";
  position: absolute;
  left: -21px;
  bottom: -19px;
  width: 44px;
  height: 26px;
  border-radius: 0 0 28px 28px;
  border: 2px solid rgba(244, 194, 90, 0.75);
  border-top: 0;
  filter: drop-shadow(0 0 8px rgba(244, 194, 90, 0.34));
}
.lit-floor {
  position: absolute;
  left: -8%;
  right: -8%;
  bottom: -18px;
  height: 98px;
  transform: perspective(250px) rotateX(58deg);
  background:
    linear-gradient(90deg, rgba(56, 53, 58, 0.08) 1px, transparent 1px),
    linear-gradient(0deg, rgba(56, 53, 58, 0.08) 1px, transparent 1px),
    #d9b98d;
  background-size: 38px 38px;
}
.regency-figure {
  position: absolute;
  bottom: 28px;
  width: 86px;
  height: 182px;
  transition: transform 0.55s ease, filter 0.55s ease;
}
.regency-figure.elizabeth {
  left: 20%;
}
.regency-figure.darcy {
  right: 20%;
}
.figure-head {
  position: absolute;
  top: 10px;
  left: 29px;
  width: 28px;
  height: 30px;
  border-radius: 50%;
  background: #f1d1bd;
  border: 1.5px solid #a8745a;
  z-index: 2;
}
.figure-hair {
  position: absolute;
  top: 7px;
  left: 27px;
  width: 33px;
  height: 18px;
  border-radius: 50% 50% 32% 32%;
  background: #5c4339;
  z-index: 3;
}
.elizabeth .figure-body {
  position: absolute;
  top: 42px;
  left: 28px;
  width: 31px;
  height: 52px;
  border-radius: 16px 16px 8px 8px;
  background: #d8e4f2;
  border: 2px solid #5a6fa0;
}
.figure-skirt {
  position: absolute;
  left: 13px;
  top: 82px;
  width: 60px;
  height: 88px;
  clip-path: polygon(50% 0, 92% 100%, 8% 100%);
  background: #f6dfe6;
  border: 2px solid #a85e6a;
}
.darcy .figure-coat {
  position: absolute;
  top: 40px;
  left: 24px;
  width: 38px;
  height: 104px;
  border-radius: 15px 15px 8px 8px;
  background: #34394f;
  border: 2px solid #1c2233;
}
.darcy .figure-body {
  position: absolute;
  top: 44px;
  left: 34px;
  width: 18px;
  height: 72px;
  background: #f6f0e5;
  border-radius: 8px;
}
.lit-thread {
  position: absolute;
  left: 50%;
  top: 146px;
  width: 34%;
  height: 3px;
  border-radius: 999px;
  opacity: 0;
  transform-origin: left center;
  transition: opacity 0.45s ease, transform 0.45s ease;
}
.thread-pride {
  background: #a83a3a;
  transform: rotate(16deg) scaleX(0.25);
}
.thread-prejudice {
  background: #5a6fa0;
  transform: rotate(164deg) scaleX(0.25);
}
.lit-letter {
  position: absolute;
  left: calc(50% - 30px);
  bottom: 90px;
  width: 60px;
  height: 42px;
  border-radius: 4px;
  background: #fff9f0;
  border: 2px solid #c9b58e;
  box-shadow: 0 9px 18px rgba(56, 53, 58, 0.15);
  opacity: 0;
  transform: translateY(14px) rotate(-5deg);
  transition: opacity 0.45s ease, transform 0.45s ease;
}
.lit-letter::before {
  content: "";
  position: absolute;
  inset: 0;
  clip-path: polygon(0 0, 50% 56%, 100% 0, 100% 100%, 0 100%);
  background: linear-gradient(180deg, transparent 0 48%, rgba(201, 181, 142, 0.4) 49% 52%, transparent 53%);
}
.lit-speech {
  position: absolute;
  z-index: 5;
  top: 16px;
  width: min(39%, 132px);
  min-height: 0;
  display: grid;
  align-content: center;
  gap: 3px;
  margin: 0;
  padding: 7px 9px;
  border: 1.5px solid #e6e1d6;
  border-radius: 14px;
  background: rgba(255, 253, 249, 0.95);
  box-shadow: 0 10px 22px rgba(56, 53, 58, 0.12);
  font-family: var(--serif);
  font-size: 14px;
  font-weight: 600;
  font-style: italic;
  line-height: 1.05;
  color: var(--ink);
  transition: color 0.35s ease, background 0.35s ease, border-color 0.35s ease, transform 0.45s ease;
}
.lit-speech::after {
  content: "";
  position: absolute;
  bottom: -8px;
  width: 14px;
  height: 14px;
  background: inherit;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  opacity: 0.32;
}
.lit-speech-elizabeth {
  left: 6%;
}
.lit-speech-elizabeth::after {
  left: 58%;
  transform: rotate(45deg);
}
.lit-speech-darcy {
  right: 6%;
  text-align: right;
}
.lit-speech-darcy::after {
  right: 58%;
  transform: rotate(45deg);
}
.lit-speaker {
  display: block;
  font-family: var(--sans);
  font-size: 8px;
  font-weight: 800;
  font-style: normal;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-soft);
}
.lit-speech[data-state="wounded"],
.lit-speech[data-state="defensive"] {
  color: #8f3838;
  border-color: #efc6ba;
  background: rgba(255, 245, 239, 0.96);
}
.lit-speech[data-state="curious"],
.lit-speech[data-state="changed"] {
  color: var(--brainstem-deep);
  border-color: #bddbd6;
  background: rgba(244, 251, 251, 0.96);
}
.lit-event {
  min-height: 3.1em;
  margin: 0;
  font-family: var(--serif);
  font-size: 22px;
  font-weight: 600;
  font-style: italic;
  line-height: 1.15;
  color: var(--ink);
}
.lit-minds {
  display: contents;
}
.lit-mind {
  display: grid;
  align-content: start;
  gap: 8px;
  min-height: 410px;
  padding: 16px;
  transition: background 0.45s ease, border-color 0.45s ease, box-shadow 0.45s ease;
}
.lit-mind.elizabeth {
  grid-column: 1;
  grid-row: 1;
}
.lit-mind.darcy {
  grid-column: 3;
  grid-row: 1;
}
.lit-mind h3 {
  margin: 0;
  font-family: var(--serif);
  font-size: 28px;
  font-weight: 600;
  line-height: 1;
}
.lit-circuit {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
  align-items: center;
  margin: 2px 0 1px;
}
.lit-brain {
  width: 100%;
}
.lit-circuit .mini-brain-svg {
  width: min(100%, 190px);
  justify-self: center;
}
.lit-circuit .mini-brain-svg .layer-label {
  font-size: 9.5px;
  letter-spacing: 0.12em;
}
.lit-circuit .mini-brain-svg .layer-sub {
  font-size: 7.5px;
}
.lit-vitals {
  grid-template-columns: 1fr 1fr;
}
.lit-vital {
  justify-content: center;
  padding: 4px 6px;
  font-size: 9px;
}
.lit-vital-icon {
  width: 22px;
  height: 22px;
  flex: 0 0 22px;
}
.lit-body {
  margin: 0;
  font-family: var(--sans);
  font-size: 12px;
  font-weight: 800;
  line-height: 1.35;
  color: var(--ink-soft);
}
.lit-mind[data-state="wounded"],
.lit-mind[data-state="defensive"] {
  border-color: #efc6ba;
  background: #fff5ef;
  box-shadow: 0 8px 24px rgba(168, 58, 58, 0.09);
}
.lit-mind[data-state="curious"],
.lit-mind[data-state="changed"] {
  border-color: #bddbd6;
  background: #f4fbfb;
  box-shadow: 0 8px 24px rgba(58, 138, 138, 0.09);
}
.lit-mind[data-state="wounded"] .brain-layer[data-region="limbic"] .layer-fill,
.lit-mind[data-state="defensive"] .brain-layer[data-region="limbic"] .layer-fill,
.lit-mind[data-state="wounded"] .brain-layer[data-region="brainstem"] .layer-fill,
.lit-mind[data-state="defensive"] .brain-layer[data-region="brainstem"] .layer-fill {
  filter: brightness(1.08) drop-shadow(0 0 7px rgba(244, 194, 90, 0.42));
  animation: layerPulse 0.9s ease-in-out infinite;
}
.lit-mind[data-state="curious"] .brain-layer[data-region="cortex"] .layer-fill,
.lit-mind[data-state="changed"] .brain-layer[data-region="cortex"] .layer-fill,
.lit-mind[data-state="changed"] .brain-layer[data-region="brainstem"] .layer-fill {
  filter: brightness(1.08) drop-shadow(0 0 8px rgba(58, 138, 138, 0.24));
}
.lit-mind[data-state="wounded"] .signal-heart-path,
.lit-mind[data-state="defensive"] .signal-heart-path {
  animation: organPulseFast 0.62s ease-in-out infinite;
  filter: drop-shadow(0 0 5px rgba(244, 194, 90, 0.38));
}
.lit-mind[data-state="wounded"] .signal-lung-path,
.lit-mind[data-state="defensive"] .signal-lung-path {
  animation: organPulseFast 0.78s ease-in-out infinite;
}
.lit-mind[data-state="curious"] .signal-heart-path,
.lit-mind[data-state="changed"] .signal-heart-path {
  animation: organPulseSlow 1.35s ease-in-out infinite;
}
.lit-mind[data-state="curious"] .signal-lung-path,
.lit-mind[data-state="changed"] .signal-lung-path {
  animation: organPulseSlow 1.55s ease-in-out infinite;
}
.lit-caption {
  grid-column: 1 / -1;
  min-height: 1.6em;
  margin: 0;
  padding: 14px 18px 0;
  border-top: 1px dashed rgba(28, 28, 28, 0.12);
  text-align: center;
  font-family: var(--serif);
  font-size: clamp(18px, 2vw, 24px);
  font-style: italic;
  line-height: 1.25;
  color: var(--ink);
  transition: opacity 0.3s ease, color 0.3s ease;
}
.lit-caption.fade { opacity: 0; }
.lit-caption.update { color: var(--brainstem-deep); }
.lit-stage[data-phase="prejudice"] .thread-pride,
.lit-stage[data-phase="prejudice"] .thread-prejudice,
.lit-stage[data-phase="proposal"] .thread-pride,
.lit-stage[data-phase="proposal"] .thread-prejudice {
  opacity: 0.82;
  transform: rotate(16deg) scaleX(1);
}
.lit-stage[data-phase="prejudice"] .thread-prejudice,
.lit-stage[data-phase="proposal"] .thread-prejudice {
  transform: rotate(164deg) scaleX(1);
}
.lit-stage[data-phase="proposal"] .regency-figure {
  filter: drop-shadow(0 0 10px rgba(168, 58, 58, 0.28));
}
.lit-stage[data-phase="proposal"] .regency-figure.elizabeth {
  transform: translateX(-10px) rotate(-1.5deg);
}
.lit-stage[data-phase="proposal"] .regency-figure.darcy {
  transform: translateX(10px) rotate(1.5deg);
}
.lit-stage[data-phase="letter"] .lit-letter,
.lit-stage[data-phase="update"] .lit-letter {
  opacity: 1;
  transform: translateY(0) rotate(-2deg);
}
.lit-stage[data-phase="letter"] .regency-figure.elizabeth {
  transform: translateX(18px);
}
.lit-stage[data-phase="letter"] .regency-figure.darcy {
  transform: translateX(-18px);
}
.lit-stage[data-phase="update"] .regency-figure.elizabeth {
  transform: translateX(30px);
  filter: drop-shadow(0 0 10px rgba(58, 138, 138, 0.24));
}
.lit-stage[data-phase="update"] .regency-figure.darcy {
  transform: translateX(-30px);
  filter: drop-shadow(0 0 10px rgba(58, 138, 138, 0.24));
}
@media (max-width: 900px) {
  .lit-stage {
    grid-template-columns: 1fr;
  }
  .lit-scene-panel {
    grid-column: 1;
    grid-row: 1;
    min-height: 360px;
  }
  .lit-mind.elizabeth {
    grid-column: 1;
    grid-row: 2;
  }
  .lit-mind.darcy {
    grid-column: 1;
    grid-row: 3;
  }
  .lit-ballroom {
    min-height: 300px;
  }
  .lit-caption {
    grid-column: 1;
    grid-row: 4;
  }
}
@media (max-width: 640px) {
  .part-literary > * {
    padding-left: 12px;
    padding-right: 12px;
  }
  .lit-stage {
    padding: 12px;
    gap: 12px;
    border-radius: 18px;
  }
  .lit-scene-panel,
  .lit-mind {
    border-radius: 14px;
  }
  .lit-scene-panel {
    min-height: 292px;
    padding: 12px;
  }
  .lit-ballroom {
    min-height: 220px;
  }
  .regency-figure {
    bottom: 8px;
    transform: scale(0.6);
    transform-origin: bottom center;
  }
  .lit-speech {
    top: 10px;
    width: 44%;
    padding: 6px 7px;
    border-radius: 12px;
    font-size: 12px;
    line-height: 1.03;
  }
  .lit-speech-elizabeth {
    left: 3%;
  }
  .lit-speech-darcy {
    right: 3%;
  }
  .lit-speaker {
    font-size: 7px;
    letter-spacing: 0.1em;
  }
  .lit-stage[data-phase="proposal"] .regency-figure.elizabeth {
    transform: scale(0.6) translateX(-10px) rotate(-1.5deg);
  }
  .lit-stage[data-phase="proposal"] .regency-figure.darcy {
    transform: scale(0.6) translateX(10px) rotate(1.5deg);
  }
  .lit-stage[data-phase="letter"] .regency-figure.elizabeth {
    transform: scale(0.6) translateX(18px);
  }
  .lit-stage[data-phase="letter"] .regency-figure.darcy {
    transform: scale(0.6) translateX(-18px);
  }
  .lit-stage[data-phase="update"] .regency-figure.elizabeth {
    transform: scale(0.6) translateX(30px);
  }
  .lit-stage[data-phase="update"] .regency-figure.darcy {
    transform: scale(0.6) translateX(-30px);
  }
  .regency-figure.elizabeth { left: 13%; }
  .regency-figure.darcy { right: 13%; }
  .lit-event {
    min-height: 2.6em;
    font-size: 18px;
  }
  .lit-mind {
    min-height: 0;
    padding: 13px;
  }
  .lit-mind h3 {
    font-size: 24px;
  }
  .lit-circuit {
    grid-template-columns: minmax(132px, 1fr) minmax(96px, 0.72fr);
  }
  .lit-circuit .mini-brain-svg {
    width: min(100%, 152px);
  }
  .lit-caption {
    font-size: 17px;
    padding: 10px 4px 0;
  }
}

/* ============== WIN OVERLAY ============== */
.win-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(56, 53, 58, 0.5);
  z-index: 100;
  justify-content: center;
  align-items: center;
  padding: 20px;
}
.win-overlay.open {
  display: flex;
  animation: fadeIn 0.4s ease;
}
@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}
.win-card {
  background: var(--cream);
  border-radius: 24px;
  padding: 40px 44px;
  text-align: center;
  max-width: 440px;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.3);
  animation: winPop 0.5s cubic-bezier(0.22, 1, 0.36, 1);
}
@keyframes winPop {
  from { transform: scale(0.85); opacity: 0; }
  to   { transform: scale(1); opacity: 1; }
}
.win-emoji {
  font-size: 56px;
  margin: 0 0 14px;
  color: var(--gold);
}
.win-card h3 {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 32px;
  margin: 0 0 12px;
  color: var(--ink);
}
.win-card p {
  font-family: var(--serif);
  font-style: italic;
  font-size: 19px;
  color: var(--ink);
  margin: 0 0 22px;
}
.primary-btn {
  background: var(--ink);
  color: var(--cream);
  border: none;
  padding: 12px 28px;
  border-radius: 999px;
  font-family: var(--sans);
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  box-shadow: 0 3px 0 #1c191e;
  transition: background 0.2s, transform 0.15s;
}
.primary-btn:hover { background: #1c191e; transform: translateY(-1px); }

/* ====================== FOOTER ====================== */
.foot {
  text-align: center;
  padding: 36px 24px 44px;
  background: var(--ink);
  color: #cfc7b8;
  font-family: var(--sans);
  font-size: 14px;
}
.foot p { margin: 0 0 6px; }
.foot .micro {
  font-size: 12px;
  opacity: 0.7;
}

/* ====================== REDUCED MOTION ====================== */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}