:root {
  color-scheme: light dark;
  --bg: #f5f7fb;
  --card: #ffffff;
  --text: #12203a;
  --muted: #5b6780;
  --primary: #1b63e0;
  --primary-hover: #154fb3;
  --border: #dbe3f4;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1728;
    --card: #17223a;
    --text: #f3f7ff;
    --muted: #bac5df;
    --primary: #6ea3ff;
    --primary-hover: #8cb5ff;
    --border: #2e3f63;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
  background: radial-gradient(circle at top, #dce6fc 0%, var(--bg) 40%);
  color: var(--text);
}

.page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 2rem;
}

.card {
  width: min(700px, 100%);
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 2.5rem;
  box-shadow: 0 8px 30px rgba(10, 20, 40, 0.08);
}

.eyebrow {
  margin: 0;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
  font-weight: 700;
  font-size: 0.8rem;
}

h1 {
  margin: 0.5rem 0 1rem;
  line-height: 1.2;
  font-size: clamp(1.75rem, 3vw, 2.4rem);
}

.body-copy,
.footnote {
  color: var(--muted);
  line-height: 1.6;
  margin: 0;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin: 1.75rem 0;
}

.button {
  display: inline-block;
  text-decoration: none;
  border-radius: 999px;
  padding: 0.7rem 1.2rem;
  font-weight: 600;
}

.button.primary {
  background: var(--primary);
  color: #fff;
}

.button.primary:hover,
.button.primary:focus-visible {
  background: var(--primary-hover);
}

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

a {
  color: var(--primary);
}

@media (max-width: 640px) {
  .card {
    padding: 1.5rem;
  }
}