:root {
  --bg: #0b1221;
  --surface: #10192f;
  --surface-2: #0f1629;
  --text: #e6ecff;
  --muted: #9fb0d7;
  --border: #1f2b46;
  --accent: #7c9bff;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: radial-gradient(circle at 20% 20%, rgba(124, 155, 255, 0.12), transparent 30%),
    radial-gradient(circle at 80% 0%, rgba(124, 155, 255, 0.08), transparent 28%),
    var(--bg);
  color: var(--text);
  font-family: "Inter", "Segoe UI", system-ui, -apple-system, sans-serif;
  line-height: 1.7;
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: color 0.2s ease, opacity 0.2s ease;
}

a:hover,
a:focus-visible {
  color: #a8b9ff;
  outline: none;
}

.site {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.container {
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  padding: 32px 24px 48px;
}

.top-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 0 12px;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text);
}

.logo-mark {
  width: 34px;
  height: 34px;
  border-radius: 12px;
  background: linear-gradient(135deg, #4f6bff, #7c9bff);
  display: grid;
  place-items: center;
  font-weight: 700;
  font-size: 16px;
  color: #0b1221;
  box-shadow: 0 10px 24px rgba(124, 155, 255, 0.25);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 16px;
}

.nav-links a {
  color: var(--muted);
  font-weight: 600;
  padding: 8px 10px;
  border-radius: 10px;
  border: 1px solid transparent;
}

.nav-links a:hover,
.nav-links a:focus-visible {
  color: var(--text);
  border-color: var(--border);
  background: var(--surface);
}

.hero {
  padding: 12px 0 28px;
  display: grid;
  gap: 20px;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border-radius: 999px;
  background: rgba(124, 155, 255, 0.12);
  color: #c9d5ff;
  font-weight: 700;
  width: fit-content;
}

h1 {
  margin: 0;
  font-size: clamp(34px, 5vw, 46px);
  letter-spacing: -0.02em;
}

h2 {
  margin: 0 0 8px;
  font-size: 24px;
  letter-spacing: -0.01em;
}

p {
  margin: 0;
  color: var(--muted);
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 22px;
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.35);
}

.grid {
  display: grid;
  gap: 16px;
}

.two-col {
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.list li {
  display: grid;
  grid-template-columns: 32px 1fr;
  gap: 10px;
  align-items: flex-start;
  color: var(--text);
}

.list strong {
  display: block;
  margin-bottom: 4px;
}

.label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 12px;
  background: rgba(124, 155, 255, 0.12);
  color: #d6dfff;
  border-radius: 10px;
  font-weight: 700;
}

.cta {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 18px;
  align-items: center;
  margin-top: 8px;
}

.cta-copy {
  display: grid;
  gap: 10px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 12px 18px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--text);
  font-weight: 700;
  text-decoration: none;
  transition: transform 0.12s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-1px);
  border-color: rgba(124, 155, 255, 0.5);
  box-shadow: 0 12px 30px rgba(124, 155, 255, 0.25);
  outline: none;
}

.button.primary {
  background: linear-gradient(135deg, #4f6bff, #7c9bff);
  border-color: transparent;
  color: #0b1221;
  box-shadow: 0 16px 36px rgba(124, 155, 255, 0.28);
}

footer {
  background: var(--surface-2);
  border-top: 1px solid var(--border);
  color: var(--muted);
  margin-top: auto;
}

.footer-content {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 18px;
  flex-wrap: wrap;
  padding: 16px 24px;
  max-width: 1100px;
  margin: 0 auto;
}

.footer-content a {
  color: var(--muted);
  font-weight: 700;
}

.footer-content a:hover,
.footer-content a:focus-visible {
  color: var(--text);
}

.section-stack {
  display: grid;
  gap: 18px;
}

@media (max-width: 640px) {
  .top-nav {
    flex-direction: column;
    align-items: flex-start;
  }

  .container {
    padding: 24px 18px 40px;
  }
}