:root {
  --bg: #0f1226;
  --bg-2: #171a35;
  --card: #1d2147;
  --card-hover: #262b58;
  --text: #e8eaf6;
  --muted: #a7adcf;
  --accent: #7c5cff;
  --accent-2: #36c6c6;
  --border: #2c3163;
  --max: 760px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.65;
  color: var(--text);
  background:
    radial-gradient(900px 500px at 80% -10%, rgba(124, 92, 255, 0.25), transparent 60%),
    radial-gradient(800px 500px at -10% 10%, rgba(54, 198, 198, 0.18), transparent 55%),
    var(--bg);
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: var(--max);
  margin: 0 auto;
  padding: 48px 24px 64px;
}

/* Hero / landing */
.hero { text-align: center; margin-bottom: 40px; }
.logo {
  font-size: 56px;
  line-height: 1;
  display: inline-block;
  margin-bottom: 8px;
  filter: drop-shadow(0 6px 18px rgba(124, 92, 255, 0.45));
}
.hero h1 {
  margin: 8px 0 4px;
  font-size: 2.1rem;
  background: linear-gradient(90deg, var(--accent-2), var(--accent));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.tagline { color: var(--muted); margin: 0; }

/* Marketing landing */
.lede {
  text-align: center;
  font-size: 1.15rem;
  color: var(--muted);
  max-width: 560px;
  margin: 0 auto 28px;
}
.cta-row {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 56px;
}
.btn {
  display: inline-block;
  text-decoration: none;
  font-weight: 600;
  padding: 12px 22px;
  border-radius: 12px;
  transition: transform 0.15s ease, opacity 0.15s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary {
  color: #0f1226;
  background: linear-gradient(90deg, var(--accent-2), var(--accent));
}
.btn-secondary {
  color: var(--text);
  background: var(--card);
  border: 1px solid var(--border);
}

.section-title {
  text-align: center;
  font-size: 1.5rem;
  margin: 0 0 28px;
}
.features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  margin-bottom: 56px;
}
.feature {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 22px;
}
.feature .icon { font-size: 28px; display: block; margin-bottom: 10px; }
.feature h3 { margin: 0 0 6px; font-size: 1.1rem; }
.feature p { margin: 0; color: var(--muted); font-size: 0.96rem; }

.legal-links {
  text-align: center;
  margin-bottom: 8px;
}
.legal-links a {
  color: var(--accent-2);
  text-decoration: none;
  margin: 0 10px;
  font-weight: 600;
}
.legal-links a:hover { text-decoration: underline; }

/* FAQ (support) */
.faq { margin: 8px 0 24px; }
.faq details {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 4px 18px;
  margin-bottom: 12px;
}
.faq summary {
  cursor: pointer;
  font-weight: 600;
  padding: 14px 0;
  list-style: none;
  color: var(--text);
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::before { content: "+  "; color: var(--accent-2); font-weight: 700; }
.faq details[open] summary::before { content: "–  "; }
.faq details p { margin: 0 0 14px; color: var(--muted); }

.cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  margin-bottom: 48px;
}
.card {
  display: block;
  text-decoration: none;
  color: inherit;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 24px;
  transition: transform 0.15s ease, background 0.15s ease, border-color 0.15s ease;
}
.card:hover {
  transform: translateY(-3px);
  background: var(--card-hover);
  border-color: var(--accent);
}
.card h2 { margin: 0 0 8px; font-size: 1.25rem; }
.card p { margin: 0 0 16px; color: var(--muted); }
.card-link { color: var(--accent-2); font-weight: 600; }

/* Document pages */
.doc { background: transparent; }
.back {
  display: inline-block;
  margin-bottom: 24px;
  color: var(--accent-2);
  text-decoration: none;
  font-weight: 600;
}
.back:hover { text-decoration: underline; }

.doc h1 {
  font-size: 2rem;
  margin: 0 0 4px;
}
.doc .updated {
  color: var(--muted);
  margin: 0 0 32px;
  font-size: 0.95rem;
}
.doc h2 {
  margin-top: 36px;
  font-size: 1.3rem;
  border-bottom: 1px solid var(--border);
  padding-bottom: 8px;
}
.doc h3 { margin-top: 24px; font-size: 1.08rem; }
.doc p, .doc li { color: #d6d9f0; }
.doc a { color: var(--accent-2); }
.doc ul { padding-left: 22px; }
.doc li { margin-bottom: 8px; }

.callout {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent-2);
  border-radius: 10px;
  padding: 14px 18px;
  margin: 24px 0;
}
.callout strong { color: var(--text); }

.footer {
  text-align: center;
  color: var(--muted);
  font-size: 0.9rem;
  border-top: 1px solid var(--border);
  padding-top: 24px;
  margin-top: 48px;
}
.footer a { color: var(--accent-2); }

@media (max-width: 560px) {
  .cards { grid-template-columns: 1fr; }
  .features { grid-template-columns: 1fr; }
  .container { padding: 32px 18px 48px; }
  .hero h1 { font-size: 1.7rem; }
}