body[data-surface="platform"] {
  color-scheme: dark;
  background:
    radial-gradient(circle at top left, rgba(63, 133, 255, 0.16), transparent 24%),
    radial-gradient(circle at 85% 16%, rgba(94, 240, 125, 0.11), transparent 20%),
    linear-gradient(180deg, #03060d 0%, #07101b 36%, #060a12 100%);
  color: #eef2ff;
}

body[data-surface="platform"]::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.028) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
  background-size: 120px 120px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.92), rgba(0, 0, 0, 0.25) 62%, transparent);
  opacity: 0.32;
}

body[data-surface="platform"] .chooser-shell {
  position: relative;
  min-height: 100vh;
  padding: 0 28px 80px;
  overflow: clip;
}

body[data-surface="platform"] .platform-shell {
  width: min(1540px, 100%);
  display: grid;
  gap: 28px;
  padding: 28px 0 72px;
}

body[data-surface="platform"] .platform-hero,
body[data-surface="platform"] .platform-pillar-band,
body[data-surface="platform"] .platform-thesis-shell,
body[data-surface="platform"] .platform-fabric-shell,
body[data-surface="platform"] .platform-system-shell,
body[data-surface="platform"] .platform-activation-shell,
body[data-surface="platform"] .platform-engine-shell,
body[data-surface="platform"] .platform-market-shell,
body[data-surface="platform"] .platform-proof-shell,
body[data-surface="platform"] .platform-capability-shell,
body[data-surface="platform"] .platform-proof-story,
body[data-surface="platform"] .platform-skin-stage {
  position: relative;
  overflow: hidden;
  border-radius: 24px;
  border: 1px solid rgba(173, 192, 255, 0.12);
  background:
    linear-gradient(180deg, rgba(8, 12, 24, 0.92), rgba(5, 8, 17, 0.98)),
    linear-gradient(120deg, rgba(55, 216, 255, 0.04), transparent 42%, rgba(94, 240, 125, 0.03));
  box-shadow: none;
}

body[data-surface="platform"] .platform-hero::before,
body[data-surface="platform"] .platform-pillar-band::before,
body[data-surface="platform"] .platform-thesis-shell::before,
body[data-surface="platform"] .platform-fabric-shell::before,
body[data-surface="platform"] .platform-system-shell::before,
body[data-surface="platform"] .platform-activation-shell::before,
body[data-surface="platform"] .platform-engine-shell::before,
body[data-surface="platform"] .platform-market-shell::before,
body[data-surface="platform"] .platform-proof-shell::before,
body[data-surface="platform"] .platform-capability-shell::before,
body[data-surface="platform"] .platform-proof-story::before,
body[data-surface="platform"] .platform-skin-stage::before {
  content: "";
  position: absolute;
  inset: 0 auto auto 0;
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, rgba(55, 216, 255, 0.55), rgba(122, 116, 255, 0.48), rgba(94, 240, 125, 0.18));
}

body[data-surface="platform"] .platform-hero {
  grid-template-columns: minmax(0, 1.12fr) minmax(380px, 0.88fr);
  gap: 0;
}

body[data-surface="platform"] .platform-copy,
body[data-surface="platform"] .platform-stage {
  min-height: 680px;
  padding: 44px 44px 40px;
  border: 0;
  border-radius: 0;
  box-shadow: none;
  background: transparent;
}

body[data-surface="platform"] .platform-copy {
  border-right: 1px solid rgba(173, 192, 255, 0.1);
}

body[data-surface="platform"] .platform-copy,
body[data-surface="platform"] .platform-stage,
body[data-surface="platform"] .platform-pillar-band,
body[data-surface="platform"] .platform-thesis-shell,
body[data-surface="platform"] .platform-fabric-shell,
body[data-surface="platform"] .platform-system-shell,
body[data-surface="platform"] .platform-activation-shell,
body[data-surface="platform"] .platform-engine-shell,
body[data-surface="platform"] .platform-market-shell,
body[data-surface="platform"] .platform-proof-shell,
body[data-surface="platform"] .platform-capability-shell,
body[data-surface="platform"] .platform-proof-story,
body[data-surface="platform"] .platform-skin-stage {
  color: #eef2ff;
}

body[data-surface="platform"] .eyebrow {
  color: rgba(219, 229, 255, 0.62);
  letter-spacing: 0.16em;
}

body[data-surface="platform"] .platform-copy h1 {
  max-width: 8.8ch;
  font-size: clamp(3.6rem, 6vw, 6rem);
  line-height: 0.92;
  letter-spacing: -0.055em;
}

body[data-surface="platform"] .platform-copy p,
body[data-surface="platform"] .platform-stage p,
body[data-surface="platform"] .platform-pillar-band-copy p,
body[data-surface="platform"] .platform-market-copy p,
body[data-surface="platform"] .platform-system-copy p,
body[data-surface="platform"] .platform-activation-copy p,
body[data-surface="platform"] .platform-engine-copy p,
body[data-surface="platform"] .platform-proof-summary p,
body[data-surface="platform"] .platform-capability-copy p,
body[data-surface="platform"] .platform-proof-story-copy p,
body[data-surface="platform"] .platform-skin-stage-copy p {
  color: rgba(220, 229, 255, 0.76);
  line-height: 1.72;
}

body[data-surface="platform"] .platform-proofline {
  width: 100%;
  min-height: 0;
  padding: 14px 16px;
  border-radius: 16px;
  border: 1px solid rgba(173, 192, 255, 0.13);
  background: rgba(255, 255, 255, 0.03);
}

body[data-surface="platform"] .platform-proof-dot {
  width: 9px;
  height: 9px;
  box-shadow: 0 0 0 4px rgba(94, 240, 125, 0.12);
}

body[data-surface="platform"] .platform-entry-actions {
  gap: 10px;
}

body[data-surface="platform"] .platform-action,
body[data-surface="platform"] .platform-scenario-button,
body[data-surface="platform"] .platform-text-link {
  border-radius: 14px;
  border: 1px solid rgba(173, 192, 255, 0.16);
  background: rgba(255, 255, 255, 0.03);
  color: #f4f6ff;
  font-weight: 700;
  letter-spacing: -0.01em;
}

body[data-surface="platform"] .platform-action {
  min-height: 46px;
  padding: 0 16px;
}

body[data-surface="platform"] .platform-action.is-primary {
  border-color: rgba(109, 123, 255, 0.4);
  background: linear-gradient(180deg, rgba(92, 102, 255, 0.94), rgba(60, 72, 210, 0.94));
}

body[data-surface="platform"] .platform-action:hover,
body[data-surface="platform"] .platform-scenario-button:hover,
body[data-surface="platform"] .platform-text-link:hover {
  transform: translateY(-1px);
  border-color: rgba(210, 223, 255, 0.26);
  background: rgba(255, 255, 255, 0.055);
}

body[data-surface="platform"] .platform-action.is-primary:hover {
  background: linear-gradient(180deg, rgba(109, 123, 255, 1), rgba(73, 84, 228, 0.98));
}

body[data-surface="platform"] .mode-switcher {
  width: fit-content;
  gap: 6px;
  padding: 6px;
  border-radius: 18px;
  border: 1px solid rgba(173, 192, 255, 0.14);
  background: rgba(255, 255, 255, 0.03);
}

body[data-surface="platform"] .mode-switcher-button,
body[data-surface="platform"] .mode-switcher-link {
  min-height: 38px;
  padding: 0 14px;
  border-radius: 12px;
  background: transparent;
  color: rgba(231, 237, 255, 0.72);
}

body[data-surface="platform"] .mode-switcher-button.is-active,
body[data-surface="platform"] .mode-switcher-link.is-active {
  background: rgba(255, 255, 255, 0.08);
  color: #ffffff;
}

body[data-surface="platform"] .platform-stage {
  display: grid;
  gap: 24px;
  background:
    linear-gradient(180deg, rgba(9, 13, 26, 0.78), rgba(8, 11, 20, 0.94)),
    radial-gradient(circle at 0 0, rgba(55, 216, 255, 0.12), transparent 32%);
}

body[data-surface="platform"] .platform-stage h2,
body[data-surface="platform"] .platform-market-copy h2,
body[data-surface="platform"] .platform-system-copy h2,
body[data-surface="platform"] .platform-activation-copy h2,
body[data-surface="platform"] .platform-engine-copy h2,
body[data-surface="platform"] .platform-proof-summary h2,
body[data-surface="platform"] .platform-capability-copy h2,
body[data-surface="platform"] .platform-proof-story-copy h2,
body[data-surface="platform"] .platform-skin-stage-copy h2 {
  font-size: clamp(2.2rem, 3.2vw, 3.5rem);
  line-height: 0.96;
  letter-spacing: -0.05em;
}

body[data-surface="platform"] .platform-nav-grid,
body[data-surface="platform"] .platform-pillar-grid,
body[data-surface="platform"] .platform-structure-grid,
body[data-surface="platform"] .platform-system-grid,
body[data-surface="platform"] .platform-flow-grid,
body[data-surface="platform"] .platform-impact-grid,
body[data-surface="platform"] .platform-capability-grid,
body[data-surface="platform"] .platform-surface-grid,
body[data-surface="platform"] .platform-marketplace-grid,
body[data-surface="platform"] .platform-trust-grid,
body[data-surface="platform"] .platform-lane-grid,
body[data-surface="platform"] .platform-dividend-grid,
body[data-surface="platform"] .platform-channel-grid,
body[data-surface="platform"] .platform-action-grid {
  gap: 16px;
}

body[data-surface="platform"] .platform-nav-card,
body[data-surface="platform"] .platform-pillar-card,
body[data-surface="platform"] .platform-structure-card,
body[data-surface="platform"] .platform-layer-card,
body[data-surface="platform"] .platform-flow-card,
body[data-surface="platform"] .platform-impact-card,
body[data-surface="platform"] .platform-capability-card,
body[data-surface="platform"] .platform-surface-card,
body[data-surface="platform"] .platform-marketplace-card,
body[data-surface="platform"] .platform-trust-card,
body[data-surface="platform"] .platform-lane-card,
body[data-surface="platform"] .platform-dividend-card,
body[data-surface="platform"] .platform-channel-card,
body[data-surface="platform"] .platform-action-card,
body[data-surface="platform"] .platform-proof-ledger-card,
body[data-surface="platform"] .platform-skin-meta-card {
  min-height: 0;
  padding: 20px;
  border-radius: 18px;
  border: 1px solid rgba(173, 192, 255, 0.12);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.035), rgba(255, 255, 255, 0.018)),
    rgba(255, 255, 255, 0.016);
  box-shadow: none;
}

body[data-surface="platform"] .platform-nav-card,
body[data-surface="platform"] .platform-surface-card,
body[data-surface="platform"] .platform-marketplace-card,
body[data-surface="platform"] .platform-trust-card {
  position: relative;
}

body[data-surface="platform"] .platform-nav-card::before,
body[data-surface="platform"] .platform-pillar-card::before,
body[data-surface="platform"] .platform-structure-card::before,
body[data-surface="platform"] .platform-layer-card::before,
body[data-surface="platform"] .platform-flow-card::before,
body[data-surface="platform"] .platform-impact-card::before,
body[data-surface="platform"] .platform-capability-card::before,
body[data-surface="platform"] .platform-surface-card::before,
body[data-surface="platform"] .platform-marketplace-card::before,
body[data-surface="platform"] .platform-trust-card::before,
body[data-surface="platform"] .platform-lane-card::before,
body[data-surface="platform"] .platform-dividend-card::before,
body[data-surface="platform"] .platform-channel-card::before,
body[data-surface="platform"] .platform-action-card::before,
body[data-surface="platform"] .platform-proof-ledger-card::before,
body[data-surface="platform"] .platform-skin-meta-card::before {
  content: "";
  position: absolute;
  inset: 0 auto auto 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, rgba(55, 216, 255, 0.62), rgba(122, 116, 255, 0.48), rgba(94, 240, 125, 0.18));
  opacity: 0.72;
}

body[data-surface="platform"] .platform-nav-card p,
body[data-surface="platform"] .platform-pillar-card p,
body[data-surface="platform"] .platform-structure-card p,
body[data-surface="platform"] .platform-layer-card p,
body[data-surface="platform"] .platform-flow-card p,
body[data-surface="platform"] .platform-impact-card p,
body[data-surface="platform"] .platform-capability-card p,
body[data-surface="platform"] .platform-surface-card p,
body[data-surface="platform"] .platform-marketplace-card p,
body[data-surface="platform"] .platform-trust-card p,
body[data-surface="platform"] .platform-lane-card p,
body[data-surface="platform"] .platform-dividend-card small,
body[data-surface="platform"] .platform-channel-card p,
body[data-surface="platform"] .platform-proof-ledger-card p,
body[data-surface="platform"] .platform-skin-meta-card p {
  color: rgba(220, 229, 255, 0.74);
}

body[data-surface="platform"] .platform-nav-card h3,
body[data-surface="platform"] .platform-pillar-card h3,
body[data-surface="platform"] .platform-layer-card h3,
body[data-surface="platform"] .platform-flow-card h3,
body[data-surface="platform"] .platform-impact-card h3,
body[data-surface="platform"] .platform-surface-card h3,
body[data-surface="platform"] .platform-trust-card h3,
body[data-surface="platform"] .platform-proof-row-main h3,
body[data-surface="platform"] .platform-skin-stage-copy h2 {
  color: #ffffff;
}

body[data-surface="platform"] .platform-engine-list,
body[data-surface="platform"] .platform-pillar-outcomes,
body[data-surface="platform"] .platform-structure-list,
body[data-surface="platform"] .platform-proof-row-list {
  margin: 0;
  padding-left: 18px;
}

body[data-surface="platform"] .platform-engine-list span,
body[data-surface="platform"] .platform-stage-thesis article,
body[data-surface="platform"] .platform-mini-metric,
body[data-surface="platform"] .platform-proof-metric,
body[data-surface="platform"] .platform-proof-row-metric {
  border-radius: 16px;
  border: 1px solid rgba(173, 192, 255, 0.12);
  background: rgba(255, 255, 255, 0.024);
}

body[data-surface="platform"] .platform-engine-list span {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  padding: 0 10px;
  color: rgba(231, 237, 255, 0.76);
}

body[data-surface="platform"] .platform-stage-thesis,
body[data-surface="platform"] .platform-hero-mini-grid,
body[data-surface="platform"] .platform-proof-strip,
body[data-surface="platform"] .platform-proof-row-metrics {
  gap: 12px;
}

body[data-surface="platform"] .platform-stage-thesis article,
body[data-surface="platform"] .platform-mini-metric,
body[data-surface="platform"] .platform-proof-metric,
body[data-surface="platform"] .platform-proof-row-metric {
  padding: 16px 18px;
}

body[data-surface="platform"] .platform-stage-thesis article {
  min-height: 0;
}

body[data-surface="platform"] .platform-stage-thesis span,
body[data-surface="platform"] .platform-mini-metric span,
body[data-surface="platform"] .platform-proof-metric span,
body[data-surface="platform"] .platform-proof-row-metric span {
  color: rgba(214, 223, 255, 0.56);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

body[data-surface="platform"] .platform-stage-thesis strong,
body[data-surface="platform"] .platform-mini-metric strong,
body[data-surface="platform"] .platform-proof-ledger-card strong,
body[data-surface="platform"] .platform-proof-metric strong,
body[data-surface="platform"] .platform-proof-row-metric strong,
body[data-surface="platform"] .platform-dividend-card strong {
  color: #ffffff;
  font-size: 1.45rem;
  letter-spacing: -0.03em;
}

body[data-surface="platform"] .platform-mini-metric small,
body[data-surface="platform"] .platform-stage-thesis small,
body[data-surface="platform"] .platform-proof-metric small,
body[data-surface="platform"] .platform-proof-row-metric small,
body[data-surface="platform"] .platform-proof-ledger-card small {
  color: rgba(220, 229, 255, 0.66);
  line-height: 1.5;
}

body[data-surface="platform"] .platform-pillar-band {
  grid-template-columns: minmax(280px, 0.9fr) minmax(0, 1.1fr);
  gap: 24px;
  padding: 32px;
}

body[data-surface="platform"] .platform-local-shell {
  position: sticky;
  top: 14px;
  z-index: 12;
  padding: 0;
  border: 0;
  background: transparent;
}

body[data-surface="platform"] .platform-local-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 12px;
  border-radius: 18px;
  border: 1px solid rgba(173, 192, 255, 0.14);
  background: rgba(6, 10, 20, 0.82);
  backdrop-filter: blur(14px);
}

body[data-surface="platform"] .platform-local-link {
  min-height: 36px;
  padding: 0 12px;
  border-radius: 12px;
  color: rgba(223, 232, 255, 0.7);
  background: transparent;
  border: 1px solid transparent;
}

body[data-surface="platform"] .platform-local-link:hover {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(173, 192, 255, 0.12);
}

body[data-surface="platform"] .platform-thesis-shell,
body[data-surface="platform"] .platform-fabric-shell,
body[data-surface="platform"] .platform-system-shell,
body[data-surface="platform"] .platform-activation-shell,
body[data-surface="platform"] .platform-engine-shell,
body[data-surface="platform"] .platform-market-shell,
body[data-surface="platform"] .platform-proof-shell,
body[data-surface="platform"] .platform-capability-shell,
body[data-surface="platform"] .platform-proof-story,
body[data-surface="platform"] .platform-skin-stage {
  padding: 36px;
}

body[data-surface="platform"] .platform-market-card {
  display: grid;
  grid-template-columns: 72px minmax(0, 1fr) auto;
  gap: 18px;
  padding: 18px 0;
  border-bottom: 1px solid rgba(173, 192, 255, 0.1);
  border-radius: 0;
  background: none;
}

body[data-surface="platform"] .platform-market-card:last-child {
  border-bottom: 0;
}

body[data-surface="platform"] .platform-market-index {
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  border-radius: 14px;
  border: 1px solid rgba(173, 192, 255, 0.14);
  background: rgba(255, 255, 255, 0.025);
  color: rgba(220, 229, 255, 0.7);
}

body[data-surface="platform"] .platform-text-link {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 0 14px;
  text-decoration: none;
}

body[data-surface="platform"] .platform-fabric-board {
  display: grid;
  gap: 22px;
}

body[data-surface="platform"] .platform-fabric-track {
  gap: 14px;
}

body[data-surface="platform"] .platform-fabric-card {
  min-height: 0;
  padding: 18px;
  border-radius: 18px;
  border: 1px solid rgba(173, 192, 255, 0.12);
  background: rgba(255, 255, 255, 0.028);
}

body[data-surface="platform"] .platform-fabric-index {
  color: rgba(94, 240, 125, 0.72);
}

body[data-surface="platform"] .platform-fabric-card strong,
body[data-surface="platform"] .platform-differentiator-list li span:last-child,
body[data-surface="platform"] .platform-layer-card h3,
body[data-surface="platform"] .platform-dividend-card strong,
body[data-surface="platform"] .platform-channel-card strong,
body[data-surface="platform"] .platform-skin-chip strong {
  color: #ffffff;
}

body[data-surface="platform"] .platform-differentiator-list {
  gap: 12px;
}

body[data-surface="platform"] .platform-differentiator-list li {
  padding: 14px 16px;
  border-radius: 16px;
  border: 1px solid rgba(173, 192, 255, 0.1);
  background: rgba(255, 255, 255, 0.02);
}

body[data-surface="platform"] .platform-differentiator-mark {
  background: rgba(94, 240, 125, 0.12);
  color: #6af288;
}

body[data-surface="platform"] .platform-proof-strip {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  padding: 0;
  border: 0;
  background: transparent;
}

body[data-surface="platform"] .platform-proof-metric {
  min-height: 0;
}

body[data-surface="platform"] .platform-proof-story {
  display: grid;
  gap: 24px;
}

body[data-surface="platform"] .platform-proof-row {
  gap: 20px;
  padding: 20px;
  border-radius: 20px;
  border: 1px solid rgba(173, 192, 255, 0.12);
  background: rgba(255, 255, 255, 0.02);
}

body[data-surface="platform"] .platform-proof-row-index {
  color: rgba(94, 240, 125, 0.82);
}

body[data-surface="platform"] .platform-skin-selector {
  gap: 12px;
}

body[data-surface="platform"] .platform-skin-chip {
  padding: 16px 18px;
  border-radius: 18px;
  border: 1px solid rgba(173, 192, 255, 0.12);
  background: rgba(255, 255, 255, 0.025);
}

body[data-surface="platform"] .platform-skin-chip.is-active {
  border-color: rgba(109, 123, 255, 0.42);
  background: linear-gradient(180deg, rgba(85, 98, 255, 0.18), rgba(255, 255, 255, 0.03));
}

body[data-surface="platform"] .platform-scenario-shortcuts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

body[data-surface="platform"] .platform-scenario-button {
  min-height: 40px;
  padding: 0 14px;
}

body[data-surface="platform"] .platform-channel-grid,
body[data-surface="platform"] .platform-dividend-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

body[data-surface="platform"] .platform-action-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

body[data-surface="platform"] .platform-action-card {
  display: flex;
  align-items: center;
  min-height: 70px;
}

body[data-surface="platform"] .platform-marketplace-grid,
body[data-surface="platform"] .platform-trust-grid,
body[data-surface="platform"] .platform-structure-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

body[data-surface="platform"] .platform-system-grid,
body[data-surface="platform"] .platform-flow-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

body[data-surface="platform"] .platform-impact-grid,
body[data-surface="platform"] .platform-capability-grid,
body[data-surface="platform"] .platform-surface-grid,
body[data-surface="platform"] .platform-lane-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

body[data-surface="platform"] .platform-layer-top {
  align-items: flex-start;
}

body[data-surface="platform"] .platform-layer-proof {
  color: rgba(102, 221, 255, 0.8);
}

body[data-surface="platform"] .platform-lane-stats {
  gap: 10px;
}

body[data-surface="platform"] .platform-lane-stats span {
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid rgba(173, 192, 255, 0.08);
  background: rgba(255, 255, 255, 0.02);
}

body[data-surface="platform"] .platform-market-copy,
body[data-surface="platform"] .platform-system-copy,
body[data-surface="platform"] .platform-activation-copy,
body[data-surface="platform"] .platform-engine-copy,
body[data-surface="platform"] .platform-proof-summary,
body[data-surface="platform"] .platform-capability-copy,
body[data-surface="platform"] .platform-proof-story-copy,
body[data-surface="platform"] .platform-skin-stage-copy {
  max-width: 56rem;
  margin-bottom: 28px;
}

@media (max-width: 1260px) {
  body[data-surface="platform"] .platform-hero {
    grid-template-columns: 1fr;
  }

  body[data-surface="platform"] .platform-copy,
  body[data-surface="platform"] .platform-stage {
    min-height: 0;
  }

  body[data-surface="platform"] .platform-copy {
    border-right: 0;
    border-bottom: 1px solid rgba(173, 192, 255, 0.1);
  }

  body[data-surface="platform"] .platform-system-grid,
  body[data-surface="platform"] .platform-flow-grid,
  body[data-surface="platform"] .platform-channel-grid,
  body[data-surface="platform"] .platform-dividend-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 980px) {
  body[data-surface="platform"] .chooser-shell {
    padding-inline: 18px;
  }

  body[data-surface="platform"] .platform-shell {
    gap: 22px;
    padding-top: 18px;
  }

  body[data-surface="platform"] .platform-copy,
  body[data-surface="platform"] .platform-stage,
  body[data-surface="platform"] .platform-pillar-band,
  body[data-surface="platform"] .platform-thesis-shell,
  body[data-surface="platform"] .platform-fabric-shell,
  body[data-surface="platform"] .platform-system-shell,
  body[data-surface="platform"] .platform-activation-shell,
  body[data-surface="platform"] .platform-engine-shell,
  body[data-surface="platform"] .platform-market-shell,
  body[data-surface="platform"] .platform-proof-shell,
  body[data-surface="platform"] .platform-capability-shell,
  body[data-surface="platform"] .platform-proof-story,
  body[data-surface="platform"] .platform-skin-stage {
    padding: 26px;
  }

  body[data-surface="platform"] .platform-pillar-band,
  body[data-surface="platform"] .platform-marketplace-grid,
  body[data-surface="platform"] .platform-trust-grid,
  body[data-surface="platform"] .platform-structure-grid,
  body[data-surface="platform"] .platform-system-grid,
  body[data-surface="platform"] .platform-flow-grid,
  body[data-surface="platform"] .platform-impact-grid,
  body[data-surface="platform"] .platform-capability-grid,
  body[data-surface="platform"] .platform-surface-grid,
  body[data-surface="platform"] .platform-lane-grid,
  body[data-surface="platform"] .platform-dividend-grid,
  body[data-surface="platform"] .platform-channel-grid,
  body[data-surface="platform"] .platform-action-grid,
  body[data-surface="platform"] .platform-nav-grid,
  body[data-surface="platform"] .platform-proof-strip,
  body[data-surface="platform"] .platform-stage-thesis {
    grid-template-columns: 1fr;
  }

  body[data-surface="platform"] .platform-market-card {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  body[data-surface="platform"] .platform-copy h1 {
    font-size: clamp(2.8rem, 12vw, 4rem);
  }

  body[data-surface="platform"] .platform-stage h2,
  body[data-surface="platform"] .platform-market-copy h2,
  body[data-surface="platform"] .platform-system-copy h2,
  body[data-surface="platform"] .platform-activation-copy h2,
  body[data-surface="platform"] .platform-engine-copy h2,
  body[data-surface="platform"] .platform-proof-summary h2,
  body[data-surface="platform"] .platform-capability-copy h2,
  body[data-surface="platform"] .platform-proof-story-copy h2,
  body[data-surface="platform"] .platform-skin-stage-copy h2 {
    font-size: clamp(1.8rem, 10vw, 2.6rem);
  }

  body[data-surface="platform"] .platform-copy,
  body[data-surface="platform"] .platform-stage,
  body[data-surface="platform"] .platform-pillar-band,
  body[data-surface="platform"] .platform-thesis-shell,
  body[data-surface="platform"] .platform-fabric-shell,
  body[data-surface="platform"] .platform-system-shell,
  body[data-surface="platform"] .platform-activation-shell,
  body[data-surface="platform"] .platform-engine-shell,
  body[data-surface="platform"] .platform-market-shell,
  body[data-surface="platform"] .platform-proof-shell,
  body[data-surface="platform"] .platform-capability-shell,
  body[data-surface="platform"] .platform-proof-story,
  body[data-surface="platform"] .platform-skin-stage {
    padding: 22px 18px;
    border-radius: 20px;
  }

  body[data-surface="platform"] .mode-switcher {
    width: 100%;
    flex-wrap: wrap;
  }

  body[data-surface="platform"] .mode-switcher-button,
  body[data-surface="platform"] .mode-switcher-link,
  body[data-surface="platform"] .platform-action,
  body[data-surface="platform"] .platform-scenario-button {
    width: 100%;
  }
}