:root {
  --synapse-grid-color: rgba(0, 217, 255, 0.12);
  --synapse-grid-highlight: rgba(0, 217, 255, 0.22);
  --synapse-outline: rgba(0, 217, 255, 0.45);
  --synapse-bg: rgba(12, 20, 30, 0.92);
  --synapse-surface: rgba(15, 26, 38, 0.86);
  --synapse-text-muted: rgba(148, 163, 184, 0.9);
}

.hero {
  min-height: 100vh;
  padding: 6rem 1.5rem 2.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
  align-items: center;
  justify-content: center;
  position: relative;
}

.synapse-hero {
  position: relative;
  width: 100%;
  max-width: 1040px;
  border-radius: 22px;
  padding: clamp(1.75rem, 3vw, 3rem);
  background: linear-gradient(145deg, rgba(5, 12, 20, 0.95), rgba(8, 24, 34, 0.88));
  border: 1px solid rgba(0, 217, 255, 0.2);
  box-shadow: 0 40px 120px -50px rgba(0, 217, 255, 0.35);
  display: grid;
  gap: clamp(1.75rem, 3vw, 2.75rem);
  grid-template-rows: auto 1fr;
  overflow: hidden;
}

.synapse-hero::after {
  content: "";
  position: absolute;
  inset: clamp(1.15rem, 2.4vw, 2.15rem);
  border: 1px solid rgba(0, 217, 255, 0.12);
  border-radius: 18px;
  pointer-events: none;
}

.synapse-hero__header,
.synapse-hero__title,
.synapse-hero__description,
.synapse-hero__hud-footer,
.synapse-hero__tagline h2,
.synapse-hero__tagline p {
  font-family: 'Inter', sans-serif;
}

.synapse-hero__header {
  position: relative;
  z-index: 3;
  display: grid;
  gap: clamp(0.65rem, 1.4vw, 1.1rem);
  width: 100%;
  max-width: 100%;
  justify-items: start;
}

.synapse-hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.75rem;
  background: rgba(0, 217, 255, 0.1);
  border: 1px solid rgba(0, 217, 255, 0.25);
  border-radius: 999px;
  font-family: 'JetBrains Mono', monospace;
  font-weight: 500;
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--primary);
  width: fit-content;
}

.synapse-hero__title {
  margin: 0;
  font-size: clamp(3.4rem, 6.2vw, 4.8rem);
  line-height: 1.05;
  font-weight: 600;
  letter-spacing: -0.045em;
  color: rgba(236, 244, 255, 0.98);
  max-width: clamp(28ch, 72%, 44ch);
  position: relative;
}

@media (max-width: 640px) {
  .synapse-hero__title {
    text-align: center;
    max-width: 100%;
  }
}

.synapse-hero__description {
  margin: 0;
  color: rgba(210, 230, 241, 0.85);
  font-size: clamp(1.05rem, 1.9vw, 1.22rem);
  font-weight: 400;
  line-height: 1.6;
  max-width: clamp(36ch, 78%, 60ch);
}

.synapse-hero__instruction {
  position: absolute;
  top: clamp(1rem, 2.6vh, 1.9rem);
  left: 50%;
  transform: translate(-50%, 0);
  margin: 0;
  padding: 0.25rem 0;
  font-size: clamp(0.75rem, 1.6vw, 0.95rem);
  text-transform: uppercase;
  letter-spacing: 0.28em;
  color: rgba(137, 246, 255, 0.85);
  font-family: 'JetBrains Mono', monospace;
  font-weight: 600;
  text-align: center;
  animation: synapse-instruction-blink 1.8s ease-in-out infinite;
  transition: opacity 0.4s ease, transform 0.4s ease;
  pointer-events: none;
  z-index: 5;
  max-width: min(88%, 460px);
  line-height: 1.4;
}

.synapse-hero--low-motion .synapse-hero__instruction {
  animation: none;
}

.synapse-hero__instruction::before,
.synapse-hero__instruction::after {
  content: '';
  position: absolute;
  top: 50%;
  width: clamp(44px, 10vw, 72px);
  height: 1px;
  background: linear-gradient(to right, transparent, rgba(0, 217, 255, 0.4));
  transform: translateY(-50%);
}

.synapse-hero__instruction::before {
  left: clamp(-82px, -12vw, -64px);
}

.synapse-hero__instruction::after {
  right: clamp(-82px, -12vw, -64px);
  background: linear-gradient(to left, transparent, rgba(0, 217, 255, 0.4));
}

.synapse-hero__instruction.is-dismissed {
  opacity: 0;
  transform: translate(-50%, -8px);
  pointer-events: none;
  animation: none;
  height: 0;
  margin: 0;
  padding: 0;
}

.synapse-hero__instruction.is-dismissed::before,
.synapse-hero__instruction.is-dismissed::after {
  display: none;
}

.synapse-hero__proof {
  position: absolute;
  bottom: clamp(1.8rem, 2.4vw, 2.6rem);
  right: clamp(1.8rem, 2.4vw, 2.6rem);
  max-width: 320px;
  padding: 1rem 1.25rem;
  border-radius: 12px;
  border: 1px solid rgba(0, 217, 255, 0.25);
  background: rgba(4, 14, 20, 0.8);
  filter: blur(0);
  transform: translateY(20px);
  opacity: 0;
  transition: opacity 0.45s ease, transform 0.45s ease;
  pointer-events: auto;
  color: var(--text);
  font-size: 0.95rem;
  line-height: 1.45;
  z-index: 6;
  max-height: min(420px, calc(100vh - 6rem));
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: rgba(0, 217, 255, 0.35) transparent;
  overscroll-behavior: contain;
}

.synapse-hero__proof::-webkit-scrollbar {
  width: 6px;
}

.synapse-hero__proof::-webkit-scrollbar-track {
  background: transparent;
}

.synapse-hero__proof::-webkit-scrollbar-thumb {
  background: rgba(0, 217, 255, 0.3);
  border-radius: 999px;
}

.synapse-hero__proof.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.synapse-proof__toolbar {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  position: sticky;
  top: 0.35rem;
  z-index: 2;
  margin-left: auto;
  margin-bottom: 0.35rem;
  padding: 0;
  width: fit-content;
  max-width: 100%;
}

.synapse-proof__items {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  padding-top: 0.15rem;
}

.synapse-proof__breadcrumb {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  margin-bottom: 0.85rem;
  background: rgba(2, 12, 22, 0.78);
  border-radius: 12px;
  padding: 0.6rem 0.75rem;
  box-shadow: inset 0 0 0 1px rgba(0, 217, 255, 0.12);
}

.synapse-proof__breadcrumb-label {
  font-size: 0.6rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: rgba(173, 227, 239, 0.7);
}

.synapse-proof__breadcrumb-path {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.85rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(226, 244, 255, 0.92);
}

.synapse-proof__crumb {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.25rem 0.55rem;
  border-radius: 999px;
  background: rgba(0, 217, 255, 0.12);
  box-shadow: inset 0 0 0 1px rgba(0, 217, 255, 0.22);
}

.synapse-proof__breadcrumb-arrow {
  font-size: 0.9rem;
  color: rgba(0, 217, 255, 0.75);
}

.synapse-proof__close {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 999px;
  border: 1px solid rgba(0, 217, 255, 0.3);
  background: rgba(2, 12, 22, 0.7);
  color: rgba(173, 227, 239, 0.85);
  font-size: 1rem;
  line-height: 1;
  cursor: pointer;
  transition: border-color 0.2s ease, background 0.2s ease, transform 0.2s ease;
}

.synapse-proof__close:hover,
.synapse-proof__close:focus-visible {
  border-color: rgba(0, 217, 255, 0.6);
  background: rgba(4, 18, 28, 0.92);
  color: rgba(226, 244, 255, 0.95);
  transform: translateY(-1px);
  outline: none;
}

.synapse-proof__item {
  padding: 0.75rem 0.85rem;
  border-radius: 10px;
  background: rgba(2, 10, 18, 0.85);
  box-shadow: inset 0 0 0 1px rgba(0, 217, 255, 0.08);
}

.synapse-proof__badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.25rem 0.6rem;
  border-radius: 999px;
  border: 1px solid rgba(0, 217, 255, 0.35);
  font-size: 0.55rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgba(173, 227, 239, 0.85);
  margin-bottom: 0.4rem;
}

.synapse-proof__title {
  display: block;
  margin: 0;
  font-size: 0.95rem;
  letter-spacing: 0.02em;
  color: rgba(226, 232, 240, 0.95);
}

.synapse-proof__summary {
  display: block;
  margin: 0.4rem 0 0;
  color: rgba(208, 233, 239, 0.8);
  font-size: 0.85rem;
  line-height: 1.5;
}

.synapse-proof__link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  margin-top: 0.6rem;
  color: var(--primary);
}

.synapse-hero__tagline {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0.94);
  text-align: center;
  opacity: 0;
  transition: opacity 0.8s ease, transform 0.8s ease;
  pointer-events: none;
  z-index: 5;
}

.synapse-hero--revealed .synapse-hero__tagline {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1);
}

.synapse-hero--low-motion .synapse-hero__stage::after,
.synapse-hero--low-motion .synapse-hero__tagline {
  transition: none;
}

.synapse-hero--low-motion .synapse-hero__cursor {
  display: none;
}

.synapse-hero__tagline h2 {
  font-size: clamp(3rem, 7vw, 5rem);
  letter-spacing: -0.02em;
  font-weight: 600;
}

.synapse-hero__tagline p {
  margin-top: 1rem;
  font-size: clamp(1rem, 2.4vw, 1.35rem);
  color: rgba(226, 232, 240, 0.75);
  font-weight: 400;
  line-height: 1.5;
}

.synapse-hero__cursor {
  position: absolute;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--primary);
  box-shadow: 0 0 22px rgba(0, 217, 255, 0.7);
  transform: translate(-50%, -50%);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
  z-index: 3;
}

.synapse-hero__node-label {
  position: absolute;
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  background: linear-gradient(135deg, rgba(2, 12, 22, 0.92), rgba(6, 24, 34, 0.82));
  border: 1px solid rgba(0, 217, 255, 0.3);
  box-shadow: inset 0 0 0 1px rgba(0, 217, 255, 0.12);
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgba(173, 227, 239, 0.75);
  transform: translate(-50%, -140%) scale(0.9);
  opacity: 0.65;
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease, color 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
  z-index: 4;
  white-space: nowrap;
  backdrop-filter: blur(8px);
}

.synapse-hero__node-label::after {
  content: '';
  position: absolute;
  top: 100%;
  left: 50%;
  width: 1px;
  height: 12px;
  background: linear-gradient(to bottom, rgba(0, 217, 255, 0.4), rgba(0, 217, 255, 0));
  transform: translateX(-50%);
}

.synapse-hero__node-label.is-highlighted {
  opacity: 1;
  transform: translate(-50%, -175%) scale(1);
  color: rgba(200, 255, 255, 0.92);
  border-color: rgba(0, 217, 255, 0.7);
  box-shadow: 0 8px 22px -10px rgba(0, 217, 255, 0.65);
}

.synapse-hero__node-label.is-primed {
  border-color: rgba(255, 190, 11, 0.72);
  box-shadow: 0 12px 26px -14px rgba(255, 190, 11, 0.55);
  color: rgba(255, 225, 170, 0.95);
}

.synapse-hero__node-label.is-source {
  border-color: rgba(0, 217, 255, 0.85);
  box-shadow: 0 0 0 2px rgba(0, 217, 255, 0.4), 0 22px 40px -18px rgba(0, 217, 255, 0.55);
  color: rgba(226, 244, 255, 0.98);
}

.synapse-hero__node-label.is-source.is-primed {
  border-color: rgba(255, 190, 11, 0.85);
  box-shadow: 0 0 0 2px rgba(255, 190, 11, 0.3), 0 24px 42px -18px rgba(255, 190, 11, 0.6);
}

.synapse-hero__node-label.is-locked {
  border-color: rgba(0, 217, 255, 0.4);
  box-shadow: 0 0 0 1px rgba(0, 217, 255, 0.22);
  opacity: 0.92;
}

.synapse-hero__node-label.is-targetable:not(.is-highlighted) {
  opacity: 0.85;
  border-color: rgba(0, 217, 255, 0.55);
  box-shadow: 0 0 0 1px rgba(0, 217, 255, 0.18);
  color: rgba(205, 242, 255, 0.9);
}

.synapse-hero__node-label.is-disabled {
  opacity: 0.35;
  border-color: rgba(105, 140, 160, 0.24);
  color: rgba(160, 190, 204, 0.48);
  box-shadow: none;
}

.synapse-hero__node-label.is-last-connection {
  border-color: rgba(0, 217, 255, 0.75);
  box-shadow: 0 0 0 2px rgba(0, 217, 255, 0.32), 0 26px 48px -20px rgba(0, 217, 255, 0.65);
  color: rgba(220, 252, 255, 0.98);
  opacity: 1;
}

.synapse-hero--revealed .synapse-hero__node-label {
  opacity: 0;
  transform: translate(-50%, -120%) scale(0.85);
}

.synapse-hero--active .synapse-hero__cursor {
  opacity: 1;
}

.synapse-hero__controls-shell {
  position: absolute;
  left: clamp(1rem, 3vw, 2rem);
  right: clamp(1rem, 3vw, 2rem);
  bottom: clamp(0.85rem, 3vh, 1.6rem);
  pointer-events: none;
  z-index: 5;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: clamp(0.3rem, 0.9vw, 0.55rem);
}

.synapse-hero__controls {
  width: 100%;
  max-width: min(92%, 880px);
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: clamp(0.3rem, 0.8vw, 0.5rem);
  padding: 0;
  margin: 0 auto;
  pointer-events: auto;
}

.synapse-hero__controls-mobile {
  display: none;
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  top: auto;
  pointer-events: none;
}

.synapse-hero__controls-instruction {
  font-size: clamp(0.65rem, 1.15vw, 0.8rem);
  text-transform: uppercase;
  color: rgba(137, 182, 210, 0.85);
  text-align: center;
  letter-spacing: 0.22em;
  line-height: 1.25;
  pointer-events: none;
}

.synapse-hero__controls-grid {
  display: flex;
  align-items: stretch;
  justify-content: space-between;
  gap: clamp(0.3rem, 0.9vw, 0.55rem);
  width: 100%;
  padding: 0;
}

.synapse-hero__stage--mobile-controls .synapse-hero__controls-shell {
  display: none;
}

.synapse-hero__node-btn {
  background: rgba(15, 26, 38, 0.9);
  border: 1px solid rgba(0, 217, 255, 0.2);
  border-radius: 12px;
  padding: clamp(0.55rem, 1vw, 0.7rem) clamp(0.45rem, 0.9vw, 0.65rem);
  text-align: center;
  font-family: 'JetBrains Mono', monospace;
  font-size: clamp(0.68rem, 1.4vw, 0.82rem);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(226, 232, 240, 0.85);
  transition: border-color 0.2s ease, transform 0.2s ease, background 0.2s ease;
  flex: 1 1 0;
  min-width: 0;
  line-height: 1.35;
}

.synapse-hero__node-btn:focus-visible,
.synapse-hero__node-btn:hover {
  outline: none;
  border-color: var(--primary);
  background: rgba(0, 217, 255, 0.12);
  transform: translateY(-2px);
}

.synapse-hero__node-btn.is-primed {
  border-color: rgba(255, 190, 11, 0.75);
  box-shadow: 0 0 12px rgba(255, 190, 11, 0.45);
}

.synapse-hero__node-btn.is-source {
  border-color: rgba(0, 217, 255, 0.85);
  background: rgba(0, 217, 255, 0.12);
  box-shadow: 0 0 0 1px rgba(0, 217, 255, 0.3), 0 18px 30px -18px rgba(0, 217, 255, 0.5);
  color: rgba(226, 232, 240, 0.95);
}

.synapse-hero__node-btn.is-source.is-primed {
  border-color: rgba(255, 190, 11, 0.85);
  background: linear-gradient(135deg, rgba(255, 190, 11, 0.24), rgba(0, 217, 255, 0.16));
  box-shadow: 0 0 0 1px rgba(255, 190, 11, 0.3), 0 18px 32px -16px rgba(255, 190, 11, 0.55);
}

.synapse-hero__node-btn.is-locked {
  border-color: rgba(0, 217, 255, 0.32);
  background: rgba(0, 217, 255, 0.06);
  box-shadow: inset 0 0 0 1px rgba(0, 217, 255, 0.12);
}

.synapse-hero__node-btn.is-targetable {
  border-color: rgba(0, 217, 255, 0.45);
  box-shadow: 0 0 0 1px rgba(0, 217, 255, 0.2);
  color: rgba(226, 244, 255, 0.95);
}

.synapse-hero__node-btn.is-last-connection {
  border-color: rgba(0, 217, 255, 0.65);
  box-shadow: 0 0 0 2px rgba(0, 217, 255, 0.32), 0 24px 44px -20px rgba(0, 217, 255, 0.6);
  background: linear-gradient(140deg, rgba(0, 217, 255, 0.18), rgba(1, 10, 18, 0));
  color: rgba(226, 244, 255, 0.98);
}

.synapse-hero__node-btn.is-disabled {
  border-color: rgba(86, 120, 140, 0.28);
  background: rgba(8, 20, 30, 0.6);
  color: rgba(145, 175, 190, 0.55);
  cursor: not-allowed;
}

.synapse-hero__node-btn.is-disabled:hover,
.synapse-hero__node-btn.is-disabled:focus-visible {
  border-color: rgba(86, 120, 140, 0.28);
  background: rgba(8, 20, 30, 0.6);
  transform: none;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.synapse-hero__fallback {
  display: none;
  margin-top: 1.5rem;
  border-radius: 16px;
  border: 1px solid rgba(0, 217, 255, 0.18);
  background: rgba(5, 14, 20, 0.8);
  padding: 1.5rem;
  gap: 1rem;
}

.synapse-hero__fallback-item {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid rgba(0, 217, 255, 0.12);
}

.synapse-hero__fallback-item:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

@media (min-width: 1024px) {
  .synapse-hero__stage {
    --synapse-proof-top: clamp(1.6rem, 2.8vw, 2.6rem);
    --synapse-proof-bottom: clamp(6.8rem, 12vh, 9.2rem);
  }

  .synapse-hero__proof {
    top: var(--synapse-proof-top);
    bottom: var(--synapse-proof-bottom);
    max-height: calc(100% - (var(--synapse-proof-top) + var(--synapse-proof-bottom)));
    max-width: clamp(300px, 24vw, 360px);
  }
}

.synapse-hero__fallback-item strong {
  font-size: 0.9rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgba(178, 255, 255, 0.9);
}

.synapse-hero__fallback-list {
  list-style: none;
  margin: 0.5rem 0 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.synapse-hero__fallback-list li {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  color: rgba(210, 235, 239, 0.8);
  font-size: 0.8rem;
}

.synapse-hero--static .synapse-hero__scene {
  display: none;
}

.synapse-hero--static .synapse-hero__stage {
  min-height: unset;
  padding: clamp(1.25rem, 3vw, 1.75rem);
}

.synapse-hero--static .synapse-hero__fallback {
  display: grid;
}

.synapse-hero--static .synapse-hero__tagline {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1);
}

.explore-button {
  margin-top: 0.75rem;
  position: relative;
}

.explore-btn {
  display: inline-flex;
  align-items: center;
  gap: 1rem;
  padding: 0.9rem 1.5rem;
  border-radius: 999px;
  border: 1px solid rgba(226, 232, 240, 0.2);
  background: rgba(8, 20, 30, 0.85);
  color: var(--text);
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.85rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.explore-btn:hover {
  transform: translateY(-3px);
  border-color: var(--primary);
}

.explore-btn-text {
  position: relative;
}

.arrow-svg {
  width: 18px;
  height: 18px;
  stroke: var(--primary);
  stroke-width: 2;
  fill: none;
}

@media (max-width: 768px) {
  .hero {
    padding-top: 5rem;
  }

  .synapse-hero {
    border-radius: 16px;
    padding: clamp(1.4rem, 6vw, 2.25rem);
    gap: clamp(1.2rem, 5vw, 2rem);
  }

  .synapse-hero::after {
    border-radius: 12px;
    inset: clamp(0.9rem, 4vw, 1.6rem);
  }

  .synapse-hero__header {
    gap: clamp(0.55rem, 3vw, 0.9rem);
    justify-items: center;
    text-align: center;
  }

  .synapse-hero__title {
    font-size: clamp(2.4rem, 8vw, 3.2rem);
  }

  .synapse-hero__description {
    font-size: clamp(0.95rem, 4vw, 1.1rem);
  }

  .synapse-hero__instruction {
    top: clamp(0.85rem, 6vw, 1.6rem);
    letter-spacing: 0.2em;
    max-width: min(92%, 420px);
  }

  .synapse-hero__instruction::before,
  .synapse-hero__instruction::after {
    width: clamp(28px, 12vw, 48px);
  }

  .synapse-hero__eyebrow {
    justify-self: center;
  }

  .synapse-hero__controls-mobile[data-active="true"] {
    display: flex;
    align-items: flex-end;
    justify-content: center;
    padding: 0.75rem;
    pointer-events: auto;
  }

  .synapse-hero__controls[data-mobile="true"] {
    pointer-events: auto;
    width: min(100%, 320px);
    margin: 0;
    padding: 0.65rem 0.75rem;
    background: rgba(4, 16, 26, 0.9);
    border: 1px solid rgba(0, 217, 255, 0.25);
    border-radius: 14px;
    box-shadow: 0 18px 44px -24px rgba(0, 217, 255, 0.55);
    backdrop-filter: blur(18px);
    gap: 0.5rem;
  }

  .synapse-hero__controls[data-mobile="true"] .synapse-hero__controls-instruction {
    display: none;
  }

  .synapse-hero__controls[data-mobile="true"] .synapse-hero__controls-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(110px, 1fr));
    gap: 0.45rem;
    overflow: visible;
    padding-bottom: 0;
  }

  .synapse-hero__controls[data-mobile="true"] .synapse-hero__node-btn {
    padding: 0.55rem 0.65rem;
    font-size: 0.7rem;
    text-align: center;
    justify-content: center;
    letter-spacing: 0.1em;
    line-height: 1.2;
    white-space: normal;
  }

  .synapse-hero__stage {
    height: clamp(340px, 68vh, 520px);
  }

  .synapse-hero__proof {
    position: relative;
    right: auto;
    bottom: auto;
    margin-top: 1.5rem;
    transform: translateY(0);
    max-height: min(360px, calc(70vh - 4rem));
  }

  .synapse-hero__controls-grid {
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .synapse-hero {
    box-shadow: none;
  }

  .synapse-hero__stage::after,
  .synapse-hero__proof,
  .synapse-hero__cursor {
    transition: none;
  }

  .synapse-hero__instruction {
    animation: none;
  }
}
.synapse-hero__stage {
  position: relative;
  height: clamp(420px, 68vh, 640px);
  border-radius: 16px;
  overflow: hidden;
  background: radial-gradient(circle at 20% 20%, rgba(0, 217, 255, 0.14), transparent 60%),
    radial-gradient(circle at 80% 80%, rgba(255, 0, 110, 0.12), transparent 55%),
    var(--synapse-surface);
  user-select: none;
  touch-action: pan-y;
}

.synapse-hero__stage::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(var(--synapse-grid-color) 1px, transparent 1px),
    linear-gradient(90deg, var(--synapse-grid-color) 1px, transparent 1px);
  background-size: 80px 80px;
  opacity: 0.35;
  mix-blend-mode: screen;
  pointer-events: none;
}

.synapse-hero__stage::after {
  content: "";
  position: absolute;
  inset: -120px;
  background: radial-gradient(circle, rgba(0, 217, 255, 0.2), transparent 55%);
  filter: blur(70px);
  opacity: 0;
  transition: opacity 1.2s ease;
  pointer-events: none;
}

.synapse-hero--revealed .synapse-hero__stage::after {
  opacity: 1;
}

.synapse-hero__scene {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}

.synapse-hero__scene canvas {
  width: 100%;
  height: 100%;
  display: block;
  cursor: none;
  touch-action: pan-y;
  user-select: none;
  -webkit-user-select: none;
  -webkit-touch-callout: none;
}

.synapse-hero__currents {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
  mix-blend-mode: screen;
}

@keyframes synapse-instruction-blink {
  0%,
  100% {
    opacity: 0.35;
  }
  50% {
    opacity: 1;
  }
}