.bg-grid {
  position: fixed;
  inset: 0;
  background:
    linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: radial-gradient(circle at 50% 0%, black, transparent 75%);
  pointer-events: none;
  z-index: -30;
}

.noise {
  position: fixed;
  inset: 0;
  opacity: 0.045;
  pointer-events: none;
  z-index: -20;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='1'/%3E%3C/svg%3E");
}

.eyebrow {
  display: inline-block;
  color: #35e7ff;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-weight: 800;
}

.glass-card {
  min-height: 220px;
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 24px;
  background: rgba(255,255,255,0.065);
  padding: 24px;
  backdrop-filter: blur(18px);
}

.glass-card h3 {
  margin: 0;
  font-size: 20px;
  font-weight: 800;
  letter-spacing: -0.025em;
}

.glass-card p {
  margin-top: 14px;
  color: #a8b3cf;
  font-size: 15px;
  line-height: 1.7;
}

.step-number {
  display: inline-block;
  color: #61ff9f;
  font-weight: 800;
  margin-bottom: 34px;
}

.mode-row {
  display: flex;
  justify-content: space-between;
  padding: 18px;
  border-bottom: 1px solid rgba(255,255,255,0.12);
}

.mode-row:last-child {
  border-bottom: 0;
}

.mode-row span {
  color: #a8b3cf;
}

.mode-row strong {
  font-weight: 800;
}

.gradient-text {
  background: linear-gradient(135deg, #61ff9f, #35e7ff, #8b5cf6);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.tech-card {
  min-height: 130px;
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 24px;
  background: rgba(255,255,255,0.065);
  padding: 22px;
  backdrop-filter: blur(18px);
}

.tech-card span {
  display: block;
  color: #a8b3cf;
  font-size: 13px;
  margin-bottom: 16px;
}

.tech-card strong {
  font-size: 18px;
  letter-spacing: -0.035em;
  font-weight: 800;
}

.timeline-item {
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: 20px;
  padding: 22px;
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 22px;
  background: rgba(255,255,255,0.045);
}

.timeline-item > span {
  width: 46px;
  height: 46px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  background: rgba(53,231,255,0.1);
  color: #35e7ff;
  font-weight: 800;
}

.timeline-item h3 {
  font-size: 20px;
  font-weight: 800;
  letter-spacing: -0.025em;
}

.timeline-item p {
  margin-top: 8px;
  color: #a8b3cf;
  font-size: 15px;
  line-height: 1.7;
}

.tag {
  padding: 10px 13px;
  border-radius: 999px;
  border: 1px solid rgba(97,255,159,0.24);
  color: #d6ffe6;
  background: rgba(97,255,159,0.08);
  font-size: 13px;
  font-weight: 800;
}

.cta-gradient {
  background:
    radial-gradient(circle at top left, rgba(53,231,255,0.18), transparent 36%),
    radial-gradient(circle at bottom right, rgba(139,92,246,0.18), transparent 40%),
    rgba(255,255,255,0.06);
}

.accordion-item {
  overflow: hidden;
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 22px;
  background: rgba(255,255,255,0.06);
  backdrop-filter: blur(18px);
}

.accordion-trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 18px;
  color: white;
  font-weight: 800;
  text-align: left;
}

.accordion-plus {
  display: grid;
  min-width: 34px;
  height: 34px;
  place-items: center;
  border-radius: 12px;
  background: rgba(53,231,255,0.1);
  color: #35e7ff;
  font-size: 22px;
  line-height: 1;
}

.accordion-panel {
  max-height: 0;
  overflow: hidden;
  transition: max-height 240ms ease;
}

.accordion-panel p {
  padding: 0 18px 18px;
  color: #a8b3cf;
  line-height: 1.7;
}

.node-map {
  position: absolute;
  width: 360px;
  height: 360px;
  left: 8px;
  bottom: 24px;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.08);
  background: radial-gradient(circle, rgba(139,92,246,0.12), transparent 62%);
}

.node {
  position: absolute;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: #35e7ff;
  box-shadow: 0 0 28px #35e7ff;
}

.n1 { left: 70px; top: 80px; }
.n2 { right: 80px; top: 110px; background: #61ff9f; box-shadow: 0 0 28px #61ff9f; }
.n3 { left: 145px; bottom: 70px; background: #8b5cf6; box-shadow: 0 0 28px #8b5cf6; }
.n4 { right: 55px; bottom: 95px; }

.line {
  position: absolute;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(53,231,255,0.65), transparent);
  transform-origin: left center;
}

.l1 { width: 180px; left: 82px; top: 90px; transform: rotate(10deg); }
.l2 { width: 180px; left: 150px; bottom: 84px; transform: rotate(-12deg); }
.l3 { width: 160px; left: 82px; top: 92px; transform: rotate(66deg); }

@media (max-width: 640px) {
  .accordion-trigger {
    padding: 16px;
    font-size: 15px;
  }

  .accordion-panel p {
    padding: 0 16px 16px;
    font-size: 14px;
  }
}