:root {
  --bg: #0a0a0b;
  --panel: #121316;
  --border: rgba(255, 255, 255, 0.08);
  --text: #e8eaed;
  --muted: #9ca3af;
  --accent: #00a2ff;
  --accent-dim: rgba(0, 162, 255, 0.12);
  --max: 44rem;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  font-size: 1rem;
}

.seo-wrap { max-width: 56rem; margin: 0 auto; padding: 0 1.25rem 3rem; }

.seo-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 0 1.5rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: 2rem;
}
.seo-logo {
  font-weight: 900;
  font-style: italic;
  letter-spacing: 0.06em;
  color: var(--accent);
  text-decoration: none;
  font-size: 1.1rem;
}
.seo-nav { display: flex; flex-wrap: wrap; gap: 0.5rem 1rem; justify-content: flex-end; }
.seo-nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.seo-nav a:hover { color: var(--text); }

.seo-hero { margin-bottom: 2rem; }
.seo-hero h1 {
  font-size: clamp(1.75rem, 4vw, 2.35rem);
  font-weight: 900;
  font-style: italic;
  line-height: 1.15;
  margin: 0 0 0.75rem;
  color: #fff;
}
.seo-lead { font-size: 1.1rem; color: var(--muted); margin: 0 0 1.5rem; max-width: var(--max); }

.seo-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 1.5rem;
  background: linear-gradient(135deg, #00a2ff, #0077cc);
  color: #fff;
  font-weight: 800;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  text-decoration: none;
  border-radius: 0.65rem;
  box-shadow: 0 0 24px rgba(0, 162, 255, 0.35);
  transition: transform 0.15s, box-shadow 0.15s;
}
.seo-cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 0 32px rgba(0, 162, 255, 0.5);
}
.seo-cta-secondary {
  display: inline-block;
  margin-left: 0.75rem;
  color: var(--muted);
  font-size: 0.85rem;
  font-weight: 600;
}

.seo-content h2 {
  font-size: 1.2rem;
  font-weight: 800;
  margin: 2rem 0 0.75rem;
  color: #fff;
}
.seo-content p { margin: 0 0 1rem; color: #c4c8cc; }
.seo-content ul, .seo-content ol {
  margin: 0 0 1.25rem;
  padding-left: 1.35rem;
  color: #c4c8cc;
}
.seo-content li { margin-bottom: 0.4rem; }

.seo-panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 0.75rem;
  padding: 1.25rem 1.5rem;
  margin: 1.5rem 0;
}
.seo-panel strong { color: var(--accent); }

.seo-faq { margin-top: 2.5rem; }
.seo-faq h2 { margin-top: 0; }
.seo-faq details {
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  margin-bottom: 0.5rem;
  background: var(--panel);
}
.seo-faq summary {
  padding: 0.85rem 1rem;
  font-weight: 700;
  cursor: pointer;
  list-style: none;
}
.seo-faq summary::-webkit-details-marker { display: none; }
.seo-faq details[open] summary { border-bottom: 1px solid var(--border); }
.seo-faq details p {
  padding: 0 1rem 1rem;
  margin: 0;
  font-size: 0.95rem;
}

.seo-links {
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
}
.seo-links h2 { font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--muted); }
.seo-links ul {
  list-style: none;
  padding: 0;
  margin: 0.75rem 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.25rem;
}
.seo-links a { color: var(--accent); font-weight: 600; font-size: 0.9rem; }

.seo-footer {
  margin-top: 2rem;
  font-size: 0.8rem;
  color: var(--muted);
  text-align: center;
}

@media (max-width: 640px) {
  .seo-header { flex-direction: column; align-items: flex-start; }
  .seo-cta-secondary { display: block; margin: 0.75rem 0 0; }
}