:root {
  color-scheme: light dark;
  --bg: #f1edfe;
  --surface: rgba(255, 255, 255, 0.78);
  --text: #14131a;
  --muted: #605b73;
  --border: #ddd7f3;
  --violet: #6c4cf1;
  --blue: #3b7bf5;
  --cyan: #22c8e6;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0e0d14;
    --surface: rgba(23, 22, 31, 0.9);
    --text: #f5f4fa;
    --muted: #b4afc7;
    --border: #2a2836;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 20% 0%, rgba(108, 76, 241, 0.15), transparent 30rem),
    var(--bg);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.65;
}

.shell { width: min(760px, calc(100% - 32px)); margin: 0 auto; padding: 32px 0 64px; }

header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 48px;
}

.brand { display: flex; align-items: center; gap: 12px; color: var(--text); text-decoration: none; }
.mark { font-size: 34px; line-height: 1; color: var(--violet); }
.brand strong { display: block; font-size: 18px; letter-spacing: -0.02em; }
.brand small { display: block; color: var(--muted); font-size: 10px; letter-spacing: 0.12em; }

nav { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 14px; }
nav a, a { color: var(--violet); }
nav a { font-size: 14px; font-weight: 650; text-decoration: none; }

main {
  padding: clamp(24px, 6vw, 52px);
  border: 1px solid var(--border);
  border-radius: 28px;
  background: var(--surface);
  box-shadow: 0 20px 60px rgba(31, 20, 72, 0.1);
  backdrop-filter: blur(18px);
}

.eyebrow { margin: 0 0 10px; color: var(--violet); font-size: 12px; font-weight: 750; letter-spacing: 0.12em; }
h1, h2 { font-family: "Space Grotesk", Inter, ui-sans-serif, system-ui, sans-serif; letter-spacing: -0.035em; }
h1 { margin: 0; font-size: clamp(38px, 8vw, 64px); line-height: 1.02; }
h2 { margin: 36px 0 8px; font-size: 22px; }
p, li { color: var(--muted); }
.lead { max-width: 620px; margin: 18px 0 0; font-size: 18px; }
.meta { margin: 14px 0 32px; color: var(--muted); font-size: 13px; }
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 12px; margin-top: 32px; }
.card { padding: 18px; border: 1px solid var(--border); border-radius: 18px; color: var(--text); text-decoration: none; }
.card strong { display: block; margin-bottom: 4px; }
.card span { color: var(--muted); font-size: 14px; }
.callout { margin-top: 28px; padding: 18px; border-left: 3px solid var(--violet); border-radius: 0 14px 14px 0; background: rgba(108, 76, 241, 0.08); }
footer { padding: 24px 4px 0; color: var(--muted); font-size: 12px; text-align: center; }

@media (max-width: 620px) {
  header { align-items: flex-start; flex-direction: column; margin-bottom: 28px; }
  nav { justify-content: flex-start; }
}