:root {
  color-scheme: light dark;
  --bg: #0b1020;
  --panel: #121936;
  --text: #eef2ff;
  --muted: #b6c0e0;
  --line: rgba(255, 255, 255, 0.12);
  --accent: #7dd3fc;
  --accent-strong: #38bdf8;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: radial-gradient(circle at top, #162044 0%, var(--bg) 45%);
  color: var(--text);
  line-height: 1.6;
}

.page {
  width: min(960px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 4rem 0 5rem;
}

.hero {
  padding: 3rem 0 2rem;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent);
  font-size: 0.8rem;
  font-weight: 700;
}

h1,
h2,
h3 {
  line-height: 1.15;
  margin: 0 0 1rem;
}

h1 {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  max-width: 12ch;
}

h2 {
  font-size: 1.75rem;
}

.lede {
  max-width: 44rem;
  font-size: 1.15rem;
  color: var(--muted);
}

.actions {
  display: flex;
  gap: 0.9rem;
  flex-wrap: wrap;
  margin-top: 1.5rem;
}

.button {
  display: inline-block;
  padding: 0.85rem 1.1rem;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 700;
  transition: transform 0.15s ease, background 0.15s ease;
}

.button:hover {
  transform: translateY(-1px);
}

.button.primary {
  background: var(--accent-strong);
  color: #04111d;
}

.button.secondary {
  border: 1px solid var(--line);
  color: var(--text);
}

.section {
  margin-top: 3rem;
  padding-top: 1rem;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1rem;
}

.card {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 1.2rem;
  backdrop-filter: blur(10px);
}

.meta {
  color: var(--muted);
  font-size: 0.95rem;
}

.principles,
.links {
  padding-left: 1.2rem;
}

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

@media (max-width: 640px) {
  .page {
    width: min(100% - 1.2rem, 960px);
    padding-top: 2rem;
  }
}