:root {
  --bg: #000000;
  --text: #ffffff;
  --muted: #9ca3af;
  --border: #1f2937;
  --btn-bg: #ffffff;
  --btn-text: #000000;
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  line-height: 1.6;
}

a {
  color: var(--text);
  text-decoration: none;
}

a:hover {
  opacity: 0.8;
}

.container {
  max-width: 860px;
  margin: 0 auto;
  padding: 28px 18px;
}

.site-header {
  border-bottom: 1px solid var(--border);
  background: var(--bg);
}

.nav {
  max-width: 860px;
  margin: 0 auto;
  padding: 16px 18px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.brand {
  font-weight: 600;
  font-size: 18px;
}

.nav-links {
  display: flex;
  gap: 18px;
}

.page-title {
  margin: 40px 0 20px;
  font-size: 36px;
}

.lead {
  font-size: 18px;
  color: var(--muted);
  max-width: 70ch;
}

.actions {
  margin-top: 25px;
  display: flex;
  gap: 15px;
  flex-wrap: wrap;
}

/* WHITE BUTTONS */
.btn {
  background: var(--btn-bg);
  color: var(--btn-text);
  padding: 12px 18px;
  border-radius: 8px;
  font-weight: 600;
  border: none;
  transition: 0.2s ease;
}

.btn:hover {
  opacity: 0.85;
  transform: translateY(-2px);
}

.btn-outline {
  background: transparent;
  border: 1px solid white;
  color: white;
}

.cta-card {
  margin-top: 50px;
  padding: 25px;
  border: 1px solid var(--border);
  border-radius: 12px;
}

.cta-card h2 {
  margin-bottom: 10px;
}

.cta-card p {
  color: var(--muted);
}

.site-footer {
  border-top: 1px solid var(--border);
  margin-top: 60px;
  padding: 30px 18px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.site-footer h3 {
  margin-bottom: 5px;
}

.site-footer p {
  color: var(--muted);
}

@media (max-width: 640px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }
}