:root {
  --vt-void: #09090b;
  --vt-panel: #121214;
  --vt-text: #f4f1ea;
  --vt-muted: #9a958c;
  --vt-signal: #d6ff3f;
}

.demo-volt {
  margin: 0;
  background: var(--vt-void);
  color: var(--vt-text);
  font-family: "IBM Plex Sans", "Segoe UI", sans-serif;
}

.vt-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 6vw;
}

.vt-logo {
  font-family: "Space Grotesk", sans-serif;
  font-weight: 700;
  letter-spacing: -0.03em;
  font-size: 1.15rem;
}

.vt-nav nav {
  display: flex;
  gap: 22px;
  align-items: center;
}

.vt-nav a {
  color: rgba(244, 241, 234, 0.72);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
}

.vt-nav-cta {
  padding: 10px 16px;
  border: 1px solid var(--vt-signal);
  color: var(--vt-signal) !important;
}

.vt-hero {
  min-height: 88vh;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 24px;
  padding: 4vh 6vw 8vh;
  align-items: center;
}

.vt-hero-copy {
  animation: demo-rise 0.85s ease both;
}

.vt-brand {
  margin: 0 0 12px;
  font-family: "Space Grotesk", sans-serif;
  font-size: clamp(2.6rem, 7vw, 5rem);
  line-height: 0.95;
  letter-spacing: -0.05em;
  font-weight: 700;
}

.vt-hero h1 {
  margin: 0 0 16px;
  font-family: "Space Grotesk", sans-serif;
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  font-weight: 500;
  color: var(--vt-signal);
  letter-spacing: -0.03em;
}

.vt-lead {
  margin: 0 0 28px;
  max-width: 30em;
  color: var(--vt-muted);
  line-height: 1.65;
  font-size: 1.05rem;
}

.vt-actions {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
  align-items: center;
}

.vt-btn {
  display: inline-block;
  padding: 14px 22px;
  background: var(--vt-signal);
  color: #111;
  text-decoration: none;
  font-weight: 700;
}

.vt-link {
  color: rgba(244, 241, 234, 0.85);
  font-weight: 600;
}

.vt-hero-stage {
  position: relative;
  min-height: 420px;
  background: var(--vt-panel);
  overflow: hidden;
  animation: demo-rise 1s ease 0.1s both;
}

.vt-orb {
  position: absolute;
  width: 58%;
  aspect-ratio: 1;
  right: 8%;
  top: 12%;
  border-radius: 50%;
  background:
    radial-gradient(circle at 35% 30%, rgba(214, 255, 63, 0.55), transparent 45%),
    radial-gradient(circle at 70% 70%, rgba(214, 255, 63, 0.15), transparent 50%),
    #1a1a1d;
  filter: blur(0.2px);
  animation: demo-drift 6s ease-in-out infinite alternate;
}

.vt-frame {
  position: absolute;
  inset: 14%;
  border: 1px solid rgba(214, 255, 63, 0.35);
}

.vt-section {
  padding: 5rem 6vw;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.vt-eyebrow {
  margin: 0 0 10px;
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--vt-signal);
  font-weight: 700;
}

.vt-section h2,
.vt-band h2 {
  margin: 0 0 28px;
  font-family: "Space Grotesk", sans-serif;
  font-size: clamp(1.9rem, 3.5vw, 2.8rem);
  letter-spacing: -0.04em;
  font-weight: 600;
}

.vt-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.vt-grid article {
  padding: 24px;
  background: var(--vt-panel);
  border: 1px solid rgba(255, 255, 255, 0.06);
  transition: border-color 0.25s, transform 0.25s;
}

.vt-grid article:hover {
  border-color: rgba(214, 255, 63, 0.4);
  transform: translateY(-4px);
}

.vt-grid span {
  color: var(--vt-signal);
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  font-weight: 700;
}

.vt-grid h3 {
  margin: 12px 0 8px;
  font-family: "Space Grotesk", sans-serif;
  letter-spacing: -0.03em;
}

.vt-grid p {
  margin: 0;
  color: var(--vt-muted);
  line-height: 1.6;
}

.vt-band {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 24px;
  padding: 4.5rem 6vw;
  background:
    linear-gradient(120deg, rgba(214, 255, 63, 0.08), transparent 45%),
    #0e0e10;
  align-items: end;
}

.vt-band p:last-child {
  margin: 0;
  color: var(--vt-muted);
  line-height: 1.7;
}

.vt-foot {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  padding: 22px 6vw;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  color: var(--vt-muted);
  font-size: 0.92rem;
}

.vt-foot a {
  color: var(--vt-signal);
  font-weight: 600;
}

@media (max-width: 900px) {
  .vt-hero,
  .vt-grid,
  .vt-band {
    grid-template-columns: 1fr;
  }

  .vt-hero-stage {
    min-height: 280px;
  }

  .vt-nav nav a:not(.vt-nav-cta) {
    display: none;
  }
}