.external-page {
  background:
    radial-gradient(circle at 15% 10%, rgba(6, 182, 212, 0.14), transparent 28%),
    radial-gradient(circle at 85% 0%, rgba(126, 34, 206, 0.14), transparent 26%),
    var(--darker);
  min-height: 100vh;
}

.external-hero,
.product-hero {
  padding: 130px 0 72px;
  border-bottom: 1px solid var(--border);
}

.external-hero-grid,
.product-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 280px;
  gap: 40px;
  align-items: center;
}

.external-kicker,
.app-category {
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

.external-hero h1,
.product-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 5vw, 4.4rem);
  margin: 12px 0 18px;
}

.external-hero p,
.product-hero p,
.info-panel p,
.support-panel p,
.feature-card p,
.app-card p {
  color: var(--text-muted);
}

.external-hero p,
.product-hero p {
  max-width: 760px;
  font-size: 1.08rem;
}

.external-hero-mark,
.product-logo-panel {
  aspect-ratio: 1;
  border: 1px solid var(--border-medium);
  border-radius: 8px;
  background: rgba(15, 23, 42, 0.72);
  display: grid;
  place-items: center;
  box-shadow: var(--shadow-lg);
}

.external-hero-mark i {
  color: var(--accent);
  font-size: 5rem;
}

.product-logo-panel img {
  width: 68%;
  height: 68%;
  object-fit: contain;
}

.small-logo-panel {
  max-width: 220px;
  justify-self: end;
}

.external-section {
  padding: 64px 0;
}

.muted-section {
  background: rgba(15, 23, 42, 0.34);
  border-top: 1px solid var(--border);
}

.section-heading {
  margin-bottom: 26px;
}

.section-heading h2,
.info-panel h2,
.support-panel h2 {
  font-family: var(--font-display);
  font-size: 1.9rem;
  margin-bottom: 10px;
}

.app-grid,
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}

.app-card,
.feature-card,
.info-panel,
.support-panel {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: 8px;
  padding: 24px;
}

.app-card-top {
  display: flex;
  gap: 16px;
  align-items: center;
  margin-bottom: 18px;
}

.app-logo {
  width: 68px;
  height: 68px;
  border-radius: 8px;
  object-fit: contain;
  background: #000;
  border: 1px solid var(--border-medium);
}

.app-card h3,
.feature-card h3 {
  font-family: var(--font-display);
  font-size: 1.45rem;
  margin: 4px 0 0;
}

.app-meta {
  align-items: center;
  color: var(--text-secondary);
  display: flex;
  gap: 8px;
  margin: 18px 0;
}

.app-actions,
.product-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.primary-action,
.secondary-action {
  align-items: center;
  border-radius: 4px;
  display: inline-flex;
  font-weight: 700;
  justify-content: center;
  min-height: 44px;
  padding: 10px 18px;
  text-decoration: none;
}

.primary-action {
  background: var(--gradient);
  color: #fff;
}

.secondary-action {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border-medium);
  color: var(--text-primary);
}

.full-width {
  width: 100%;
}

.back-link {
  color: var(--text-secondary);
  display: inline-flex;
  gap: 8px;
  margin-bottom: 24px;
  text-decoration: none;
}

.back-link:hover {
  color: var(--accent);
}

.product-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 340px;
  gap: 24px;
  align-items: start;
}

.support-panel {
  position: sticky;
  top: 96px;
}

.support-list,
.steps-list {
  color: var(--text-secondary);
  margin: 18px 0 24px;
  padding-left: 0;
}

.support-list li {
  display: flex;
  gap: 12px;
  list-style: none;
  margin-bottom: 14px;
}

.support-list i,
.feature-card i {
  color: var(--accent);
}

.steps-list {
  padding-left: 22px;
}

.steps-list li {
  margin-bottom: 14px;
}

.steps-list a {
  color: var(--accent);
}

.notice-box {
  background: rgba(2, 6, 23, 0.32);
  border: 1px solid var(--border-medium);
  border-radius: 8px;
  margin-top: 20px;
  padding: 18px;
}

.notice-box h3 {
  align-items: center;
  display: flex;
  gap: 10px;
  margin-bottom: 8px;
}

.last-update {
  align-items: center;
  color: var(--text-secondary);
  display: inline-flex;
  gap: 8px;
  margin-top: 18px;
}

@media (max-width: 860px) {
  .external-hero-grid,
  .product-hero-grid,
  .product-layout {
    grid-template-columns: 1fr;
  }

  .external-hero-mark,
  .product-logo-panel {
    max-width: 220px;
  }

  .support-panel {
    position: static;
  }
}

@media (max-width: 560px) {
  .external-hero,
  .product-hero {
    padding: 110px 0 48px;
  }

  .app-actions,
  .product-actions {
    flex-direction: column;
  }
}