/* =====================================================================
   RIA — 3D CONTENT SCENES
   Three new scroll-driven scenes carrying the Manifesto / Commitments /
   Support content as proper sticky 3D scrollytelling sequences (not
   flat cards). Pattern matches the existing .scroll-scene and
   .pipeline-scene: sticky 100vh inner track inside a multi-vh outer
   container, --c-progress and --c-stage CSS vars set by JS.

   prefers-reduced-motion: each scene flattens to a static block.
   ===================================================================== */

/* ── Shared scaffolding ──────────────────────────────────────────────── */
.scene-3d {
  --c-progress: 0;
  --c-stage: 0;
  position: relative;
  height: 360vh;
  margin: 4rem 0;
  isolation: isolate;
  overflow-x: clip;
  contain: paint;
}
.scene-3d-track {
  position: sticky;
  top: 0;
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  perspective: 1400px;
  perspective-origin: 50% 45%;
  padding: 0 clamp(1rem, 4vw, 4rem);
  overflow: hidden;
}

.scene-eyebrow {
  position: absolute;
  top: 7vh;
  left: 50%;
  transform: translateX(-50%);
  font-family: ui-monospace, Menlo, monospace;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-muted);
  white-space: nowrap;
}
.scene-eyebrow .num { color: var(--accent-color); font-weight: 700; }

.scene-progress-dots {
  position: absolute;
  bottom: 6vh;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 0.4rem;
}
.scene-progress-dots .dot {
  width: 24px;
  height: 3px;
  border-radius: 2px;
  background: rgba(255,255,255,0.12);
  transition: background 0.3s ease, transform 0.3s ease;
}
.scene-3d[style*="--c-stage: 0"] .scene-progress-dots .dot:nth-child(1),
.scene-3d[style*="--c-stage:0"]  .scene-progress-dots .dot:nth-child(1),
.scene-3d[style*="--c-stage: 1"] .scene-progress-dots .dot:nth-child(2),
.scene-3d[style*="--c-stage:1"]  .scene-progress-dots .dot:nth-child(2),
.scene-3d[style*="--c-stage: 2"] .scene-progress-dots .dot:nth-child(3),
.scene-3d[style*="--c-stage:2"]  .scene-progress-dots .dot:nth-child(3),
.scene-3d[style*="--c-stage: 3"] .scene-progress-dots .dot:nth-child(4),
.scene-3d[style*="--c-stage:3"]  .scene-progress-dots .dot:nth-child(4),
.scene-3d[style*="--c-stage: 4"] .scene-progress-dots .dot:nth-child(5),
.scene-3d[style*="--c-stage:4"]  .scene-progress-dots .dot:nth-child(5),
.scene-3d[style*="--c-stage: 5"] .scene-progress-dots .dot:nth-child(6),
.scene-3d[style*="--c-stage:5"]  .scene-progress-dots .dot:nth-child(6) {
  background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
  transform: scaleX(1.4);
}

.scene-text-stack {
  position: relative;
  width: min(720px, 90vw);
  text-align: center;
  z-index: 2;
  transform-style: preserve-3d;
}
.scene-text-panel {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.55s cubic-bezier(0.16, 1, 0.3, 1);
  pointer-events: none;
}
.scene-3d[style*="--c-stage: 0"] .scene-text-panel[data-stage="0"],
.scene-3d[style*="--c-stage:0"]  .scene-text-panel[data-stage="0"],
.scene-3d[style*="--c-stage: 1"] .scene-text-panel[data-stage="1"],
.scene-3d[style*="--c-stage:1"]  .scene-text-panel[data-stage="1"],
.scene-3d[style*="--c-stage: 2"] .scene-text-panel[data-stage="2"],
.scene-3d[style*="--c-stage:2"]  .scene-text-panel[data-stage="2"],
.scene-3d[style*="--c-stage: 3"] .scene-text-panel[data-stage="3"],
.scene-3d[style*="--c-stage:3"]  .scene-text-panel[data-stage="3"] {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.scene-headline {
  font-size: clamp(2rem, 1.8vw + 1.4rem, 3.6rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1.05;
  margin: 0 0 0.85rem;
  background: linear-gradient(180deg, #fff 0%, rgba(237,237,239,0.65) 100%);
  -webkit-background-clip: text;
          background-clip: text;
  -webkit-text-fill-color: transparent;
  max-width: 22ch;
}
.scene-body {
  color: var(--text-secondary);
  font-size: clamp(0.96rem, 0.3vw + 0.9rem, 1.1rem);
  line-height: 1.55;
  max-width: 52ch;
  margin: 0 auto;
}
.scene-stat {
  display: inline-flex;
  align-items: baseline;
  gap: 0.55rem;
  margin-top: 1.15rem;
  font-family: ui-monospace, Menlo, monospace;
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-color);
  background: rgba(34,211,238,0.06);
  padding: 0.35rem 0.85rem;
  border-radius: 999px;
  border: 1px solid rgba(34,211,238,0.18);
}
.scene-stat strong {
  color: var(--text-primary);
  font-size: 1.55em;
  font-weight: 800;
  letter-spacing: -0.03em;
  font-family: var(--font-sans);
}

/* ───────────────────────────────────────────────────────────────────── */
/*  SCENE: MANIFESTO (papers wall → filter → quote)                     */
/* ───────────────────────────────────────────────────────────────────── */

.scene-manifesto .papers-wall {
  position: absolute;
  inset: 0;
  perspective: 1400px;
  perspective-origin: 50% 50%;
  pointer-events: none;
}
.papers-wall .paper-tile {
  position: absolute;
  width: 96px;
  height: 130px;
  border-radius: 8px;
  /* Cooler, darker tones so they don't compete with the white headline. */
  background: linear-gradient(180deg, rgba(38, 42, 56, 0.95) 0%, rgba(28, 32, 44, 0.95) 100%);
  box-shadow: 0 18px 30px -14px rgba(0,0,0,0.7),
              inset 0 1px 0 rgba(255,255,255,0.07);
  border: 1px solid rgba(255,255,255,0.07);
  transform-style: preserve-3d;
  opacity: 0.55;
  transition: transform 0.65s cubic-bezier(0.65,0,0.05,1),
              opacity 0.55s cubic-bezier(0.65,0,0.05,1),
              filter 0.55s ease;
}
.papers-wall .paper-tile::before {
  /* paper grain */
  content: "";
  position: absolute;
  inset: 8px;
  background:
    repeating-linear-gradient(0deg,
      transparent 0px, transparent 9px,
      rgba(255,255,255,0.05) 9px, rgba(255,255,255,0.05) 10px);
  border-radius: 4px;
}
.papers-wall .paper-tile.is-flagged {
  background: linear-gradient(180deg, rgba(58, 32, 38, 0.95) 0%, rgba(48, 24, 30, 0.95) 100%);
  border-color: rgba(248,113,113,0.25);
}
.papers-wall .paper-tile.is-flagged::after {
  content: "⚠";
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%,-50%);
  font-size: 1.4rem;
  color: #ef4444;
  opacity: 0;
  transition: opacity 0.4s ease;
}

/* Stage transitions: papers begin scattered (stage 0), then sponsored
   ones glow red (stage 1), then collapse to a stack (stage 2), then
   transform behind a translucent shield (stage 3). */

/* Distribute 12 tiles around the edges of the wall, away from the
   centre column where the headline lives. All tiles are pushed deep
   into Z so they read as ambient atmosphere, not foreground actors. */
.papers-wall .paper-tile:nth-child(1)  { top: 14%; left: 5%;  transform: translateZ(-340px) rotate(-8deg); }
.papers-wall .paper-tile:nth-child(2)  { top: 4%;  left: 22%; transform: translateZ(-260px) rotate(4deg); }
.papers-wall .paper-tile:nth-child(3)  { top: 6%;  left: 68%; transform: translateZ(-380px) rotate(-5deg); }
.papers-wall .paper-tile:nth-child(4)  { top: 14%; left: 86%; transform: translateZ(-280px) rotate(7deg); }
.papers-wall .paper-tile:nth-child(5)  { top: 42%; left: 2%;  transform: translateZ(-220px) rotate(2deg); }
.papers-wall .paper-tile:nth-child(6)  { top: 38%; left: 18%; transform: translateZ(-420px) rotate(-3deg); }
.papers-wall .paper-tile:nth-child(7)  { top: 38%; left: 78%; transform: translateZ(-300px) rotate(5deg); }
.papers-wall .paper-tile:nth-child(8)  { top: 42%; left: 92%; transform: translateZ(-360px) rotate(-7deg); }
.papers-wall .paper-tile:nth-child(9)  { top: 72%; left: 4%;  transform: translateZ(-330px) rotate(6deg); }
.papers-wall .paper-tile:nth-child(10) { top: 78%; left: 22%; transform: translateZ(-260px) rotate(-4deg); }
.papers-wall .paper-tile:nth-child(11) { top: 70%; left: 68%; transform: translateZ(-390px) rotate(3deg); }
.papers-wall .paper-tile:nth-child(12) { top: 78%; left: 88%; transform: translateZ(-280px) rotate(-6deg); }

/* Stage 1: flagged tiles glow red, others dim. */
.scene-manifesto[style*="--c-stage: 1"] .papers-wall .paper-tile,
.scene-manifesto[style*="--c-stage:1"]  .papers-wall .paper-tile {
  opacity: 0.25;
  filter: blur(1px);
}
.scene-manifesto[style*="--c-stage: 1"] .papers-wall .paper-tile.is-flagged,
.scene-manifesto[style*="--c-stage:1"]  .papers-wall .paper-tile.is-flagged {
  opacity: 1;
  filter: drop-shadow(0 0 18px rgba(248,113,113,0.65));
}
.scene-manifesto[style*="--c-stage: 1"] .papers-wall .paper-tile.is-flagged::after,
.scene-manifesto[style*="--c-stage:1"]  .papers-wall .paper-tile.is-flagged::after {
  opacity: 1;
}

/* Stage 2: tiles collapse toward center stack, rotate. */
.scene-manifesto[style*="--c-stage: 2"] .papers-wall .paper-tile,
.scene-manifesto[style*="--c-stage:2"]  .papers-wall .paper-tile {
  top: 50% !important;
  left: 50% !important;
  transform: translate(-50%, -50%) translateZ(0) rotateY(calc(var(--c-progress) * 720deg)) scale(0.6);
  opacity: 0.5;
}

/* Stage 3: tiles disappear, replaced by the central pull-quote glow. */
.scene-manifesto[style*="--c-stage: 3"] .papers-wall .paper-tile,
.scene-manifesto[style*="--c-stage:3"]  .papers-wall .paper-tile {
  opacity: 0;
  transform: translate(-50%, -50%) translateZ(-300px) scale(0.2);
}

/* Vignette: dark ellipse in the centre that visually pushes the
   papers AROUND the text, so the headline is always read clearly
   against the background — never against a paper tile.
   Lives on the sticky track so it always covers exactly the viewport. */
.scene-manifesto .scene-3d-track::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 48% 38% at 50% 50%,
      rgba(5, 5, 9, 0.96) 0%,
      rgba(5, 5, 9, 0.78) 30%,
      rgba(5, 5, 9, 0.4) 55%,
      transparent 75%);
  z-index: 1;
  pointer-events: none;
}

/* Ambient violet glow pulsing — sits BEHIND the vignette and papers. */
.scene-manifesto::before {
  content: "";
  position: absolute;
  width: 70vmin;
  height: 70vmin;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  background: radial-gradient(circle,
    rgba(139,92,246,0.22) 0%,
    rgba(34,211,238,0.08) 35%,
    transparent 65%);
  filter: blur(40px);
  z-index: -1;
  pointer-events: none;
  opacity: calc(0.5 + var(--c-progress) * 0.5);
  transition: opacity 0.6s ease;
}

/* Make sure the text stack reads ABOVE the vignette. */
.scene-manifesto .scene-text-stack {
  position: relative;
  z-index: 2;
}
.scene-manifesto .scene-text-panel { z-index: 2; }
.scene-manifesto .scene-eyebrow,
.scene-manifesto .scene-progress-dots { z-index: 3; }

/* Eyebrow gets a small dark backing so it never sits on a paper either. */
.scene-manifesto .scene-eyebrow {
  background: rgba(5, 5, 9, 0.7);
  padding: 0.25rem 0.85rem;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.06);
}

/* ───────────────────────────────────────────────────────────────────── */
/*  SCENE: COMMITMENTS (3 orbiting glassy cards)                        */
/* ───────────────────────────────────────────────────────────────────── */

.scene-commitments .commit-orbit {
  position: relative;
  width: clamp(260px, 32vw, 480px);
  aspect-ratio: 1;
  transform-style: preserve-3d;
  /* Slow auto-rotation overlaid on the per-stage rotation */
  transform: rotateX(8deg) rotateY(calc(var(--c-progress) * -120deg));
  transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.commit-card {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 200px;
  height: 240px;
  margin: -120px 0 0 -100px;
  border-radius: 18px;
  background:
    linear-gradient(165deg, rgba(255,255,255,0.06), rgba(255,255,255,0.02)) padding-box,
    linear-gradient(135deg, rgba(139,92,246,0.45), rgba(34,211,238,0.3)) border-box;
  border: 1px solid transparent;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 30px 60px -20px rgba(0,0,0,0.6);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 1.4rem 1.4rem 1.5rem;
  transform-style: preserve-3d;
  transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1),
              opacity 0.4s ease;
  text-align: left;
}
.commit-card .icon {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: auto;
  color: #0a0a0a;
}
.commit-card h4 {
  font-size: 1.12rem;
  font-weight: 700;
  letter-spacing: -0.025em;
  margin: 0 0 0.4rem;
  color: var(--text-primary);
}
.commit-card p {
  font-size: 0.84rem;
  line-height: 1.45;
  color: var(--text-secondary);
  margin: 0;
}

/* Place each card on a different angle of the orbit */
.commit-card.c-1 { transform: rotateY(0deg)   translateZ(180px); }
.commit-card.c-2 { transform: rotateY(120deg) translateZ(180px); }
.commit-card.c-3 { transform: rotateY(240deg) translateZ(180px); }

/* Per-stage spotlight: the active card scales and brightens, the others dim. */
.scene-commitments[style*="--c-stage: 0"] .commit-card,
.scene-commitments[style*="--c-stage:0"]  .commit-card { opacity: 0.4; filter: saturate(0.7); }
.scene-commitments[style*="--c-stage: 0"] .commit-card.c-1,
.scene-commitments[style*="--c-stage:0"]  .commit-card.c-1 {
  opacity: 1; filter: none;
  transform: rotateY(0deg) translateZ(220px) scale(1.05);
}
.scene-commitments[style*="--c-stage: 1"] .commit-card,
.scene-commitments[style*="--c-stage:1"]  .commit-card { opacity: 0.4; filter: saturate(0.7); }
.scene-commitments[style*="--c-stage: 1"] .commit-card.c-2,
.scene-commitments[style*="--c-stage:1"]  .commit-card.c-2 {
  opacity: 1; filter: none;
  transform: rotateY(120deg) translateZ(220px) scale(1.05);
}
.scene-commitments[style*="--c-stage: 2"] .commit-card,
.scene-commitments[style*="--c-stage:2"]  .commit-card { opacity: 0.4; filter: saturate(0.7); }
.scene-commitments[style*="--c-stage: 2"] .commit-card.c-3,
.scene-commitments[style*="--c-stage:2"]  .commit-card.c-3 {
  opacity: 1; filter: none;
  transform: rotateY(240deg) translateZ(220px) scale(1.05);
}
.scene-commitments[style*="--c-stage: 3"] .commit-card,
.scene-commitments[style*="--c-stage:3"]  .commit-card {
  opacity: 1; filter: none;
}

/* Founder card emerges in front in stage 3 */
.commit-founder {
  position: absolute;
  left: 50%;
  bottom: 14%;
  transform: translateX(-50%) translateY(20px);
  opacity: 0;
  transition: opacity 0.5s ease, transform 0.5s ease;
  display: flex;
  align-items: center;
  gap: 0.85rem;
  padding: 0.85rem 1.2rem;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border-color);
  border-radius: 999px;
}
.scene-commitments[style*="--c-stage: 3"] .commit-founder,
.scene-commitments[style*="--c-stage:3"]  .commit-founder {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}
.commit-founder .mark {
  width: 32px; height: 32px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
  color: #0a0a0a;
  font-weight: 800;
  font-size: 0.78rem;
  display: flex; align-items: center; justify-content: center;
}
.commit-founder .name {
  font-size: 0.84rem;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}
.commit-founder .role {
  font-family: ui-monospace, Menlo, monospace;
  font-size: 0.66rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-left: 0.3rem;
}

/* ───────────────────────────────────────────────────────────────────── */
/*  SCENE: SUPPORT (a heart of glyphs that rises into a 3D pillar)      */
/* ───────────────────────────────────────────────────────────────────── */

.scene-support .support-stack {
  position: relative;
  width: clamp(220px, 25vw, 320px);
  aspect-ratio: 0.9;
  transform-style: preserve-3d;
  transform: rotateX(calc(8deg + var(--c-progress) * 16deg))
             rotateY(calc(var(--c-progress) * 35deg));
  transition: transform 0.45s cubic-bezier(0.16, 1, 0.3, 1);
}

.support-coin {
  position: absolute;
  left: 50%;
  width: 200px;
  height: 36px;
  margin-left: -100px;
  border-radius: 10px;
  background:
    linear-gradient(180deg, rgba(255,255,255,0.06), rgba(255,255,255,0.02)) padding-box,
    linear-gradient(135deg, rgba(139,92,246,0.5), rgba(34,211,238,0.4)) border-box;
  border: 1px solid transparent;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 1rem;
  font-family: ui-monospace, Menlo, monospace;
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  color: var(--text-secondary);
  box-shadow: 0 14px 30px -16px rgba(139,92,246,0.5),
              inset 0 1px 0 rgba(255,255,255,0.05);
  transform-style: preserve-3d;
  transition: transform 0.55s cubic-bezier(0.16, 1, 0.3, 1),
              opacity 0.4s ease;
}
.support-coin .label {
  font-weight: 700;
  text-transform: uppercase;
  color: var(--text-primary);
}
.support-coin .value {
  color: var(--accent-color);
  font-weight: 700;
}
/* Three coins stacked, each at a different y offset and z-rotation. */
.support-coin.s-1 { bottom: 20%; transform: translateZ(0)   rotateZ(-2deg); }
.support-coin.s-2 { bottom: 38%; transform: translateZ(20px) rotateZ(1deg); }
.support-coin.s-3 { bottom: 56%; transform: translateZ(40px) rotateZ(-1deg); }

/* Per-stage: highlight the relevant coin */
.scene-support .support-coin { opacity: 0.45; }
.scene-support[style*="--c-stage: 0"] .support-coin.s-1,
.scene-support[style*="--c-stage:0"]  .support-coin.s-1,
.scene-support[style*="--c-stage: 1"] .support-coin.s-2,
.scene-support[style*="--c-stage:1"]  .support-coin.s-2,
.scene-support[style*="--c-stage: 2"] .support-coin.s-3,
.scene-support[style*="--c-stage:2"]  .support-coin.s-3 {
  opacity: 1;
  filter: drop-shadow(0 0 18px rgba(139,92,246,0.6));
}
.scene-support[style*="--c-stage: 3"] .support-coin,
.scene-support[style*="--c-stage:3"]  .support-coin {
  opacity: 1;
  filter: none;
}

/* Stage 3 turns the stack into a single CTA "tower" */
.scene-support[style*="--c-stage: 3"] .support-stack,
.scene-support[style*="--c-stage:3"]  .support-stack {
  transform: rotateX(0deg) rotateY(0deg) scale(1.05);
}

/* Stage 3 emerges a button */
.support-cta-emerge {
  position: absolute;
  left: 50%;
  bottom: 12%;
  transform: translateX(-50%) translateY(20px);
  opacity: 0;
  transition: opacity 0.5s ease, transform 0.5s ease;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.8rem 1.4rem;
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: -0.005em;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
  color: #0a0a0a;
  text-decoration: none;
  box-shadow: 0 14px 30px -14px rgba(139,92,246,0.6);
}
.support-cta-emerge:hover {
  transform: translateX(-50%) translateY(-2px);
}
.scene-support[style*="--c-stage: 3"] .support-cta-emerge,
.scene-support[style*="--c-stage:3"]  .support-cta-emerge {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ───────────────────────────────────────────────────────────────────── */
/*  SCENE: LIVING DATABASE (community-powered predatory journal DB)     */
/*  4 stages mapping to the 4 architecture phases:                      */
/*    0  Foundation        — funnel + sources flowing in                 */
/*    1  Two-layer detect  — paper hits internal DB → AI scan            */
/*    2  Human loop        — verifiers ring around the paper             */
/*    3  Closing the loop  — paper reabsorbed, DB pulses brighter        */
/* ───────────────────────────────────────────────────────────────────── */

.scene-living-db {
  height: 480vh;        /* a bit longer — 4 dense stages */
}
.scene-living-db .scene-3d-track {
  perspective: 1600px;
  perspective-origin: 50% 50%;
  display: block; /* opt out of flex centering: we lay out absolutely */
}

/* In this scene the text lives in the TOP THIRD; the orb and choreography
   live in the BOTTOM TWO-THIRDS. That keeps the headline always clear of
   the verifier ring and the loop arrow at later stages. */
.scene-living-db .scene-text-stack {
  position: absolute !important;
  top: 14vh;
  left: 50%;
  transform: translateX(-50%);
  width: min(760px, 92vw);
  height: auto;
  z-index: 4;
}
.scene-living-db .scene-text-panel {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
}
.scene-living-db .scene-headline { font-size: clamp(1.85rem, 1.5vw + 1.3rem, 3rem); }
.scene-living-db .scene-body { max-width: 50ch; }

.scene-living-db .scene-eyebrow { top: 5vh; }
.scene-living-db .scene-progress-dots { bottom: 4vh; }

/* Move the orb down so it sits in the bottom half. */
.scene-living-db .living-db-core {
  top: 68%;
  margin-top: calc(clamp(180px, 20vw, 280px) / -2);
  width: clamp(180px, 20vw, 280px);
  margin-left: calc(clamp(180px, 20vw, 280px) / -2);
}

/* Sources flank the orb, not the headline. */
.scene-living-db .db-source.s-1 { top: 60%; left: 8%;  }
.scene-living-db .db-source.s-2 { top: 60%; right: 8%; }
.scene-living-db .db-source::after { width: 22vw; }

/* Paper, layers, verifiers, loop arrow all centred on the orb (68%). */
.scene-living-db .db-paper {
  top: 68%;
}
.scene-living-db .db-layer.l-1,
.scene-living-db .db-layer.l-2 {
  top: calc(68% - 22px);
}
.scene-living-db .db-verifier {
  top: 68%;
}
.scene-living-db .db-loop-arrow {
  top: 68%;
}

@media (max-width: 700px) {
  .scene-living-db .scene-text-stack { top: 10vh; }
  .scene-living-db .living-db-core { top: 65%; }
  .scene-living-db .db-source.s-1,
  .scene-living-db .db-source.s-2 { top: 55%; }
  .scene-living-db .db-paper,
  .scene-living-db .db-layer.l-1,
  .scene-living-db .db-layer.l-2,
  .scene-living-db .db-verifier,
  .scene-living-db .db-loop-arrow { top: 65%; }
}

/* The central database orb. Always visible, grows + glows with progress. */
.living-db-core {
  position: absolute;
  width: clamp(200px, 22vw, 320px);
  aspect-ratio: 1;
  left: 50%;
  top: 50%;
  margin-left: calc(clamp(200px, 22vw, 320px) / -2);
  margin-top: calc(clamp(200px, 22vw, 320px) / -2);
  border-radius: 50%;
  background:
    radial-gradient(circle at 30% 30%,
      rgba(167,139,250,0.28),
      rgba(34,211,238,0.16) 40%,
      rgba(52,211,153,0.08) 70%,
      transparent 100%);
  border: 1px solid rgba(139,92,246,0.35);
  box-shadow:
    inset 0 0 60px rgba(139,92,246,0.18),
    0 0 calc(40px + var(--c-progress, 0) * 60px) rgba(139,92,246,0.4);
  transform-style: preserve-3d;
  transform:
    rotateX(calc(var(--c-progress, 0) * 12deg + 6deg))
    rotateY(calc(var(--c-progress, 0) * 60deg))
    scale(calc(0.85 + var(--c-progress, 0) * 0.18));
  transition: transform 0.5s var(--cinematic-ease),
              box-shadow 0.5s ease;
  z-index: 1;
}
.living-db-core::before {
  /* Wireframe overlay, gives the "data sphere" feel. */
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background:
    repeating-linear-gradient(0deg,   transparent 0 12px, rgba(255,255,255,0.04) 12px 13px),
    repeating-linear-gradient(90deg,  transparent 0 12px, rgba(255,255,255,0.03) 12px 13px),
    repeating-linear-gradient(45deg,  transparent 0 18px, rgba(34,211,238,0.05) 18px 19px);
  mask-image: radial-gradient(circle, #000 55%, transparent 78%);
  -webkit-mask-image: radial-gradient(circle, #000 55%, transparent 78%);
}
.living-db-core .core-label {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  font-family: ui-monospace, Menlo, monospace;
  font-size: 0.66rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.55);
  text-align: center;
  line-height: 1.5;
}
.living-db-core .core-label strong {
  display: block;
  margin-top: 0.2rem;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  text-transform: none;
  color: var(--text-primary);
}

/* Stage 0 — funnel: two source streams flow into the DB orb. */
.db-source {
  position: absolute;
  font-family: ui-monospace, Menlo, monospace;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-secondary);
  padding: 0.5rem 0.85rem;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border-color);
  border-radius: 999px;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  opacity: 0;
  transform: scale(0.85);
  transition: opacity 0.45s var(--cinematic-ease),
              transform 0.45s var(--cinematic-ease);
}
.db-source.s-1 { top: 22%; left: 8%; }
.db-source.s-2 { top: 22%; right: 8%; }
.db-source::before {
  content: "";
  width: 8px; height: 8px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
  box-shadow: 0 0 10px rgba(139,92,246,0.6);
}
/* Beam from source to core — drawn with a pseudo-element line. */
.db-source::after {
  content: "";
  position: absolute;
  height: 2px;
  background: linear-gradient(90deg,
    rgba(139,92,246,0.7),
    rgba(34,211,238,0.4) 70%,
    transparent 100%);
  top: 50%;
  left: 100%;
  width: calc(35vw + 10px);
  transform-origin: left center;
  transform: scaleX(0);
  transition: transform 0.7s var(--cinematic-ease);
  filter: blur(0.5px);
  box-shadow: 0 0 8px rgba(139,92,246,0.4);
}
.db-source.s-2::after {
  left: auto; right: 100%;
  transform-origin: right center;
  background: linear-gradient(270deg,
    rgba(139,92,246,0.7),
    rgba(34,211,238,0.4) 70%,
    transparent 100%);
}
.scene-living-db[style*="--c-stage: 0"] .db-source,
.scene-living-db[style*="--c-stage:0"]  .db-source {
  opacity: 1;
  transform: scale(1);
}
.scene-living-db[style*="--c-stage: 0"] .db-source::after,
.scene-living-db[style*="--c-stage:0"]  .db-source::after {
  transform: scaleX(1);
}

/* Stage 1 — two-layer detection: a paper enters from the left, gets
   challenged by Layer 1 (DB) then Layer 2 (AI brain). */
.db-paper {
  position: absolute;
  width: 80px; height: 110px;
  left: 50%;
  top: 50%;
  margin-left: -40px;
  margin-top: -55px;
  border-radius: 6px;
  background: linear-gradient(180deg, #f5f5f0, #e6e6e1);
  box-shadow: 0 14px 24px -10px rgba(0,0,0,0.55),
              inset 0 1px 0 rgba(255,255,255,0.85);
  border: 1px solid rgba(0,0,0,0.05);
  opacity: 0;
  transform: translate3d(-280px, 0, 0) rotateY(-12deg);
  transition: opacity 0.4s ease, transform 0.7s var(--cinematic-ease);
  z-index: 3;
}
.db-paper::before {
  content: "";
  position: absolute;
  inset: 6px;
  background:
    repeating-linear-gradient(0deg,
      transparent 0 7px, rgba(0,0,0,0.06) 7px 8px);
  border-radius: 3px;
}
.scene-living-db[style*="--c-stage: 1"] .db-paper,
.scene-living-db[style*="--c-stage:1"]  .db-paper {
  opacity: 1;
  transform: translate3d(0, 0, 60px) rotateY(0deg);
}

.db-layer {
  position: absolute;
  font-family: ui-monospace, Menlo, monospace;
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  padding: 0.4rem 0.75rem;
  border-radius: 8px;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  opacity: 0;
  transition: opacity 0.4s ease, transform 0.5s var(--cinematic-ease);
  display: flex;
  align-items: center;
  gap: 0.4rem;
  z-index: 4;
}
.db-layer.l-1 {
  top: calc(50% - 22px);
  left: 18%;
  transform: translateX(-12px);
}
.db-layer.l-2 {
  top: calc(50% - 22px);
  right: 18%;
  transform: translateX(12px);
}
.db-layer .icon {
  width: 14px; height: 14px;
  border-radius: 4px;
  background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #0a0a0a;
  font-size: 0.6rem;
  font-weight: 800;
}
.scene-living-db[style*="--c-stage: 1"] .db-layer,
.scene-living-db[style*="--c-stage:1"]  .db-layer {
  opacity: 1;
  transform: translateX(0);
}

/* Stage 2 — human verification ring around the paper. */
.db-verifier {
  position: absolute;
  width: 50px; height: 50px;
  left: 50%; top: 50%;
  margin: -25px 0 0 -25px;
  border-radius: 50%;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  opacity: 0;
  transform: rotate(var(--angle, 0deg)) translateX(180px) rotate(calc(-1 * var(--angle, 0deg))) scale(0.7);
  transition: opacity 0.4s ease, transform 0.55s var(--cinematic-ease);
  z-index: 5;
}
.db-verifier.v-1 { --angle: 30deg; }
.db-verifier.v-2 { --angle: 90deg; }
.db-verifier.v-3 { --angle: 150deg; }
.db-verifier.v-4 { --angle: 210deg; }
.db-verifier.v-5 { --angle: 270deg; }
.db-verifier.v-6 { --angle: 330deg; }
.db-verifier .role {
  position: absolute;
  bottom: -1.4rem;
  font-family: ui-monospace, Menlo, monospace;
  font-size: 0.6rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  white-space: nowrap;
}
.scene-living-db[style*="--c-stage: 2"] .db-verifier,
.scene-living-db[style*="--c-stage:2"]  .db-verifier {
  opacity: 1;
  transform: rotate(var(--angle)) translateX(180px) rotate(calc(-1 * var(--angle))) scale(1);
}
/* Two of them light up green (the validators). */
.scene-living-db[style*="--c-stage: 2"] .db-verifier.is-validator,
.scene-living-db[style*="--c-stage:2"]  .db-verifier.is-validator {
  background: rgba(52,211,153,0.15);
  border-color: rgba(52,211,153,0.5);
  color: #34d399;
  box-shadow: 0 0 18px rgba(52,211,153,0.35);
}

/* Stage 3 — closing the loop: paper folds back into the orb,
   the orb pulses, an arrow loop wraps around. */
.scene-living-db[style*="--c-stage: 3"] .db-paper,
.scene-living-db[style*="--c-stage:3"]  .db-paper {
  opacity: 0.4;
  transform: translate3d(0, 0, -60px) rotateY(45deg) scale(0.4);
}
.scene-living-db[style*="--c-stage: 3"] .living-db-core,
.scene-living-db[style*="--c-stage:3"]  .living-db-core {
  box-shadow:
    inset 0 0 80px rgba(139,92,246,0.32),
    0 0 120px rgba(34,211,238,0.5),
    0 0 240px rgba(139,92,246,0.25);
  animation: livingDbPulse 2.4s ease-in-out infinite;
}
@keyframes livingDbPulse {
  0%, 100% { transform: rotateX(18deg) rotateY(60deg) scale(1.03); }
  50%      { transform: rotateX(18deg) rotateY(75deg) scale(1.06); }
}

.db-loop-arrow {
  position: absolute;
  width: clamp(280px, 32vw, 440px);
  height: clamp(280px, 32vw, 440px);
  left: 50%;
  top: 50%;
  margin-left: calc(clamp(280px, 32vw, 440px) / -2);
  margin-top: calc(clamp(280px, 32vw, 440px) / -2);
  border-radius: 50%;
  border: 1px dashed rgba(139,92,246,0.4);
  border-top-color: rgba(34,211,238,0.6);
  border-right-color: rgba(34,211,238,0.4);
  opacity: 0;
  transform: rotate(0deg);
  transition: opacity 0.5s ease;
  pointer-events: none;
  z-index: 0;
}
.scene-living-db[style*="--c-stage: 3"] .db-loop-arrow,
.scene-living-db[style*="--c-stage:3"]  .db-loop-arrow {
  opacity: 1;
  animation: livingDbSpin 14s linear infinite;
}
@keyframes livingDbSpin { to { transform: rotate(360deg); } }

/* Mobile tightening for living-db verifiers / sources */
@media (max-width: 700px) {
  .db-verifier {
    width: 36px; height: 36px;
    margin: -18px 0 0 -18px;
    transform: rotate(var(--angle)) translateX(110px) rotate(calc(-1 * var(--angle))) scale(0.7) !important;
  }
  .scene-living-db[style*="--c-stage: 2"] .db-verifier,
  .scene-living-db[style*="--c-stage:2"]  .db-verifier {
    transform: rotate(var(--angle)) translateX(110px) rotate(calc(-1 * var(--angle))) scale(1) !important;
  }
  .db-verifier .role { display: none; }
  .db-source { font-size: 0.6rem; padding: 0.35rem 0.6rem; }
  .db-source.s-1, .db-source.s-2 { top: 12%; }
  .db-layer { font-size: 0.55rem; padding: 0.3rem 0.55rem; }
}

/* ───────────────────────────────────────────────────────────────────── */
/*  SCENE: METHODOLOGY (5-step pipeline, lights up step-by-step)        */
/*  6 stages: 0 idle → 1..5 each step active                            */
/* ───────────────────────────────────────────────────────────────────── */

.scene-methodology {
  height: 540vh;        /* 6 stages */
}
.scene-methodology .scene-3d-track {
  perspective: 1400px;
  perspective-origin: 50% 60%;
  /* Flex column: eyebrow → text-stack → pipeline naturally stack with
     gaps, no more 50vh of empty space between headline and motif. */
  display: flex !important;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: clamp(2rem, 6vh, 5rem);
  padding: 7vh 1rem 8vh;
}
.scene-methodology .scene-text-stack {
  /* Static positioning — sits between eyebrow and pipeline naturally. */
  position: relative !important;
  top: auto !important;
  left: auto !important;
  transform: none !important;
  width: min(640px, 92vw);
  z-index: 4;
  /* Reserve a min-height so panel cross-fades don't collapse the layout. */
  min-height: clamp(180px, 28vh, 260px);
  display: flex;
  align-items: center;
  justify-content: center;
}
.scene-methodology .scene-text-panel {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}
.scene-methodology .scene-headline { font-size: clamp(1.85rem, 1.5vw + 1.3rem, 3rem); }

/* Eyebrow + progress dots stay absolute (top / bottom anchored). */
.scene-methodology .scene-eyebrow { top: 5vh; }
.scene-methodology .scene-progress-dots { bottom: 4vh; }

/* The horizontal pipeline rail — flows in normal document order now. */
.method-pipeline {
  position: relative;
  left: auto;
  bottom: auto;
  top: auto;
  transform: none;
  display: flex;
  align-items: flex-start;
  gap: clamp(0.6rem, 2.5vw, 2rem);
  perspective: 1400px;
  width: min(720px, 92vw);
}
.method-pipeline-rail {
  position: absolute;
  height: 2px;
  top: 38px;            /* aligns with the centre of node circles */
  left: 0;
  right: 0;
  background: linear-gradient(90deg,
    rgba(139,92,246,0.18) 0%,
    rgba(34,211,238,0.18) 100%);
  z-index: 0;
}
.method-pipeline-rail::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg,
    rgba(139,92,246,0.9),
    rgba(167,139,250,0.9) 25%,
    rgba(248,113,113,0.9) 45%,
    rgba(34,211,238,0.9) 70%,
    rgba(52,211,153,0.9) 100%);
  transform-origin: left center;
  /* Fill grows with progress; we'll drive it via inline calc on the
     scene's --c-progress. Each stage takes 1/5 of progress. */
  transform: scaleX(var(--c-progress, 0));
  transition: transform 0.45s cubic-bezier(0.65,0,0.05,1);
  filter: blur(0.5px);
  box-shadow: 0 0 14px rgba(167,139,250,0.5);
}

.method-step {
  position: relative;
  width: clamp(96px, 11vw, 140px);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  z-index: 1;
}
.method-step .node {
  width: 76px;
  height: 76px;
  border-radius: 50%;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: ui-monospace, Menlo, monospace;
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-muted);
  transition: transform 0.45s cubic-bezier(0.65,0,0.05,1),
              background 0.4s ease,
              border-color 0.4s ease,
              box-shadow 0.4s ease,
              color 0.4s ease;
  position: relative;
}
.method-step .node svg {
  width: 26px; height: 26px;
  stroke: currentColor;
}
.method-step .label {
  margin-top: 0.85rem;
  font-family: ui-monospace, Menlo, monospace;
  font-size: 0.66rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-secondary);
  transition: color 0.4s ease;
}
.method-step .meta {
  display: block;
  margin-top: 0.3rem;
  font-family: ui-monospace, Menlo, monospace;
  font-size: 0.6rem;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  opacity: 0.6;
}

/* Per-stage activation */
.method-step.is-active .node {
  background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
  border-color: transparent;
  color: #0a0a0a;
  transform: scale(1.18);
  box-shadow: 0 14px 30px -10px rgba(139,92,246,0.6),
              0 0 0 4px rgba(139,92,246,0.18),
              0 0 36px rgba(34,211,238,0.4);
}
.method-step.is-active .label { color: var(--text-primary); }
.method-step.is-warning.is-active .node {
  background: linear-gradient(135deg, #ef4444, #f87171);
  box-shadow: 0 14px 30px -10px rgba(248,113,113,0.55),
              0 0 0 4px rgba(248,113,113,0.18),
              0 0 36px rgba(248,113,113,0.4);
}
.method-step.is-completed .node {
  background: rgba(52,211,153,0.12);
  border-color: rgba(52,211,153,0.45);
  color: #34d399;
}

/* Drive activation by --c-stage. Stage 0 = idle, stages 1..5 light up
   the matching .method-step. Earlier steps stay marked completed. */
.scene-methodology[style*="--c-stage: 1"] .method-step:nth-child(1 of .method-step),
.scene-methodology[style*="--c-stage:1"]  .method-step:nth-child(1 of .method-step),
.scene-methodology[style*="--c-stage: 2"] .method-step:nth-child(2 of .method-step),
.scene-methodology[style*="--c-stage:2"]  .method-step:nth-child(2 of .method-step),
.scene-methodology[style*="--c-stage: 3"] .method-step:nth-child(3 of .method-step),
.scene-methodology[style*="--c-stage:3"]  .method-step:nth-child(3 of .method-step),
.scene-methodology[style*="--c-stage: 4"] .method-step:nth-child(4 of .method-step),
.scene-methodology[style*="--c-stage:4"]  .method-step:nth-child(4 of .method-step),
.scene-methodology[style*="--c-stage: 5"] .method-step:nth-child(5 of .method-step),
.scene-methodology[style*="--c-stage:5"]  .method-step:nth-child(5 of .method-step) {
  /* Mark active */
}

/* Force the active-class look from the stage selectors above. */
.scene-methodology[style*="--c-stage: 1"] .method-step:nth-child(1 of .method-step) .node,
.scene-methodology[style*="--c-stage:1"]  .method-step:nth-child(1 of .method-step) .node,
.scene-methodology[style*="--c-stage: 2"] .method-step:nth-child(2 of .method-step) .node,
.scene-methodology[style*="--c-stage:2"]  .method-step:nth-child(2 of .method-step) .node,
.scene-methodology[style*="--c-stage: 3"] .method-step:nth-child(3 of .method-step) .node,
.scene-methodology[style*="--c-stage:3"]  .method-step:nth-child(3 of .method-step) .node,
.scene-methodology[style*="--c-stage: 4"] .method-step:nth-child(4 of .method-step) .node,
.scene-methodology[style*="--c-stage:4"]  .method-step:nth-child(4 of .method-step) .node,
.scene-methodology[style*="--c-stage: 5"] .method-step:nth-child(5 of .method-step) .node,
.scene-methodology[style*="--c-stage:5"]  .method-step:nth-child(5 of .method-step) .node {
  background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
  border-color: transparent;
  color: #0a0a0a;
  transform: scale(1.18);
  box-shadow: 0 14px 30px -10px rgba(139,92,246,0.6),
              0 0 0 4px rgba(139,92,246,0.18),
              0 0 36px rgba(34,211,238,0.4);
}
.scene-methodology[style*="--c-stage: 1"] .method-step:nth-child(1 of .method-step) .label,
.scene-methodology[style*="--c-stage:1"]  .method-step:nth-child(1 of .method-step) .label,
.scene-methodology[style*="--c-stage: 2"] .method-step:nth-child(2 of .method-step) .label,
.scene-methodology[style*="--c-stage:2"]  .method-step:nth-child(2 of .method-step) .label,
.scene-methodology[style*="--c-stage: 3"] .method-step:nth-child(3 of .method-step) .label,
.scene-methodology[style*="--c-stage:3"]  .method-step:nth-child(3 of .method-step) .label,
.scene-methodology[style*="--c-stage: 4"] .method-step:nth-child(4 of .method-step) .label,
.scene-methodology[style*="--c-stage:4"]  .method-step:nth-child(4 of .method-step) .label,
.scene-methodology[style*="--c-stage: 5"] .method-step:nth-child(5 of .method-step) .label,
.scene-methodology[style*="--c-stage:5"]  .method-step:nth-child(5 of .method-step) .label {
  color: var(--text-primary);
}

/* The predatory module step (3rd) goes red when active. */
.scene-methodology[style*="--c-stage: 3"] .method-step:nth-child(3 of .method-step) .node,
.scene-methodology[style*="--c-stage:3"]  .method-step:nth-child(3 of .method-step) .node {
  background: linear-gradient(135deg, #ef4444, #f87171);
  box-shadow: 0 14px 30px -10px rgba(248,113,113,0.55),
              0 0 0 4px rgba(248,113,113,0.18),
              0 0 36px rgba(248,113,113,0.4);
}

/* Past steps stay highlighted as "completed" green. */
.scene-methodology[style*="--c-stage: 2"] .method-step:nth-child(1 of .method-step) .node,
.scene-methodology[style*="--c-stage:2"]  .method-step:nth-child(1 of .method-step) .node,
.scene-methodology[style*="--c-stage: 3"] .method-step:nth-child(1 of .method-step) .node,
.scene-methodology[style*="--c-stage:3"]  .method-step:nth-child(1 of .method-step) .node,
.scene-methodology[style*="--c-stage: 3"] .method-step:nth-child(2 of .method-step) .node,
.scene-methodology[style*="--c-stage:3"]  .method-step:nth-child(2 of .method-step) .node,
.scene-methodology[style*="--c-stage: 4"] .method-step:nth-child(1 of .method-step) .node,
.scene-methodology[style*="--c-stage:4"]  .method-step:nth-child(1 of .method-step) .node,
.scene-methodology[style*="--c-stage: 4"] .method-step:nth-child(2 of .method-step) .node,
.scene-methodology[style*="--c-stage:4"]  .method-step:nth-child(2 of .method-step) .node,
.scene-methodology[style*="--c-stage: 4"] .method-step:nth-child(3 of .method-step) .node,
.scene-methodology[style*="--c-stage:4"]  .method-step:nth-child(3 of .method-step) .node,
.scene-methodology[style*="--c-stage: 5"] .method-step:nth-child(1 of .method-step) .node,
.scene-methodology[style*="--c-stage:5"]  .method-step:nth-child(1 of .method-step) .node,
.scene-methodology[style*="--c-stage: 5"] .method-step:nth-child(2 of .method-step) .node,
.scene-methodology[style*="--c-stage:5"]  .method-step:nth-child(2 of .method-step) .node,
.scene-methodology[style*="--c-stage: 5"] .method-step:nth-child(3 of .method-step) .node,
.scene-methodology[style*="--c-stage:5"]  .method-step:nth-child(3 of .method-step) .node,
.scene-methodology[style*="--c-stage: 5"] .method-step:nth-child(4 of .method-step) .node,
.scene-methodology[style*="--c-stage:5"]  .method-step:nth-child(4 of .method-step) .node {
  background: rgba(52,211,153,0.14);
  border-color: rgba(52,211,153,0.45);
  color: #34d399;
  transform: scale(1);
  box-shadow: 0 6px 16px -8px rgba(52,211,153,0.35);
}

/* Mobile: pipeline becomes vertical */
@media (max-width: 700px) {
  .scene-methodology { height: 460vh; }
  .scene-methodology .method-pipeline {
    flex-direction: column;
    gap: 1rem;
    bottom: auto;
    top: 38vh;
    align-items: center;
  }
  .scene-methodology .method-pipeline-rail {
    width: 2px;
    height: auto;
    top: 0;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
  }
  .scene-methodology .method-pipeline-rail::before {
    transform: scaleY(var(--c-progress, 0));
    transform-origin: top center;
    background: linear-gradient(180deg,
      rgba(139,92,246,0.9), rgba(34,211,238,0.9));
  }
  .scene-methodology .method-step .node { width: 56px; height: 56px; }
  .scene-methodology .method-step .label { margin-top: 0.4rem; font-size: 0.6rem; }
}

/* ───────────────────────────────────────────────────────────────────── */
/*  Reduced motion + mobile                                             */
/* ───────────────────────────────────────────────────────────────────── */

@media (prefers-reduced-motion: reduce) {
  .scene-3d { height: auto; }
  .scene-3d-track { position: static; height: auto; padding: 3rem 1rem; flex-direction: column; gap: 2rem; }
  .scene-text-panel {
    position: static;
    opacity: 1 !important;
    transform: none !important;
    margin-bottom: 1.5rem;
  }
  .papers-wall, .commit-orbit, .support-stack,
  .living-db-core, .db-source, .db-paper, .db-layer, .db-verifier, .db-loop-arrow,
  .method-pipeline-rail::before { display: none; }
  .method-pipeline { position: static; flex-direction: column; gap: 1rem; }
  .method-step .node { transform: none !important; transition: none !important; }
  .commit-founder, .support-cta-emerge {
    position: static !important;
    opacity: 1 !important;
    transform: none !important;
  }
  .scene-progress-dots { display: none; }
}

@media (max-width: 700px) {
  .scene-3d { height: 320vh; }
  .papers-wall .paper-tile { width: 70px; height: 95px; }
  .commit-card { width: 150px; height: 180px; margin: -90px 0 0 -75px; padding: 1rem; }
  .commit-card.c-1 { transform: rotateY(0deg)   translateZ(120px); }
  .commit-card.c-2 { transform: rotateY(120deg) translateZ(120px); }
  .commit-card.c-3 { transform: rotateY(240deg) translateZ(120px); }
  .support-coin { width: 160px; margin-left: -80px; height: 32px; padding: 0 0.85rem; font-size: 0.65rem; }
  .scene-headline { font-size: clamp(1.6rem, 7vw, 2.2rem); }
}