body {
  color: var(--text-primary-dark);
  background: var(--ink-900);
}

/* ===== Hero ===== */
.hero-section {
  background: radial-gradient(ellipse at 30% 0%, var(--ink-800) 0%, var(--ink-900) 50%, var(--ink-1000) 100%);
  padding: 64px 32px 80px;
  position: relative;
  overflow: hidden;
}
.hero-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(96,165,250,0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(96,165,250,0.06) 1px, transparent 1px);
  background-size: 24px 24px;
  -webkit-mask-image: radial-gradient(ellipse at 30% 0%, black 30%, transparent 75%);
          mask-image: radial-gradient(ellipse at 30% 0%, black 30%, transparent 75%);
  pointer-events: none;
}

.hero {
  max-width: 1080px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  gap: 56px;
  align-items: start;
  position: relative;
}

h1 {
  font-size: 46px;
  line-height: 1.05;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin: 0 0 20px;
  background: var(--headline-grad);
  -webkit-background-clip: text;
          background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

.lede {
  font-size: 19px;
  color: var(--text-secondary-dark);
  margin: 0 0 24px;
  line-height: 1.5;
}

.what {
  font-size: 15px;
  color: var(--text-secondary-dark);
  margin: 0 0 28px;
}
.what p { margin: 0 0 12px; }
.what em { color: var(--text-primary-dark); font-style: italic; }
.what strong { color: var(--text-primary-dark); font-weight: 600; }

.install {
  display: inline-block;
  padding: 12px 22px;
  background: var(--brand-grad);
  color: white;
  border-radius: 7px;
  text-decoration: none;
  font-size: 15px;
  font-weight: 500;
  box-shadow: 0 6px 20px rgba(29,78,216,0.45);
  transition: transform 0.15s, box-shadow 0.15s;
}
.install:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(29,78,216,0.55);
}
.install.disabled {
  background: rgba(96,165,250,0.15);
  color: var(--text-muted-dark);
  cursor: not-allowed;
  box-shadow: none;
  pointer-events: none;
}

.beta-note {
  margin-top: 12px;
  font-size: 12px;
  color: var(--text-muted-dark);
}

.demo {
  aspect-ratio: 4 / 3;
  border-radius: var(--radius-frame);
  background: linear-gradient(135deg, rgba(59,130,246,0.12), rgba(13,40,96,0.5));
  border: 1px solid var(--border-dark);
  box-shadow: 0 0 32px rgba(96,165,250,0.15), inset 0 0 40px rgba(59,130,246,0.05);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted-dark);
  font-size: 13px;
  overflow: hidden;
}
.demo video, .demo iframe {
  width: 100%;
  height: 100%;
  border: 0;
  border-radius: calc(var(--radius-frame) - 1px);
}

/* ===== Features ===== */
.features-section {
  padding: 0 32px 56px;
  background: var(--ink-1000);
}
.features {
  max-width: 1080px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  padding-top: 56px;
}
.feature {
  background: rgba(13, 40, 96, 0.4);
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-card);
  padding: 22px;
  transition: transform 0.15s, border-color 0.15s;
}
.feature:hover {
  transform: translateY(-2px);
  border-color: rgba(96,165,250,0.3);
}
.feature-label {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--brand-300);
  margin: 0 0 8px;
}
.feature-title {
  font-size: 17px;
  font-weight: 600;
  margin: 0 0 6px;
  color: var(--text-primary-dark);
}
.feature-body {
  font-size: 14px;
  color: var(--text-muted-dark);
  margin: 0;
  line-height: 1.5;
}

@media (max-width: 820px) {
  .hero-section { padding: 48px 20px 56px; }
  .hero { grid-template-columns: 1fr; gap: 32px; }
  h1 { font-size: 36px; }
  .features-section { padding: 0 20px 48px; }
  .features { grid-template-columns: 1fr; gap: 14px; padding-top: 40px; }
}