:root {
  color-scheme: dark;
  --bg: #0e1116;
  --panel: #171c24;
  --text: #f5f7fa;
  --muted: #aeb7c4;
  --accent: #8bc5ff;
  --border: #2a3240;
}

* {
  box-sizing: border-box;
}

html {
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
}

body {
  margin: 0;
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
  background: radial-gradient(circle at top, #182231 0, var(--bg) 55%);
}

main {
  width: min(100%, 680px);
}

.card {
  background: color-mix(in srgb, var(--panel) 92%, transparent);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: clamp(28px, 7vw, 56px);
  box-shadow: 0 20px 60px rgb(0 0 0 / 0.28);
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--accent);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  font-size: clamp(2.5rem, 9vw, 5rem);
  line-height: 0.95;
  letter-spacing: -0.04em;
}

.tagline {
  margin: 18px 0 0;
  color: var(--muted);
  font-size: clamp(1rem, 3vw, 1.25rem);
  line-height: 1.55;
}

.links {
  display: grid;
  gap: 12px;
  margin-top: 32px;
}

.link {
  display: block;
  padding: 15px 18px;
  border: 1px solid var(--border);
  border-radius: 12px;
  color: var(--text);
  text-decoration: none;
  font-weight: 650;
  background: rgb(255 255 255 / 0.025);
}

.link:hover,
.link:focus-visible {
  border-color: var(--accent);
  outline: none;
}

.link[aria-disabled="true"] {
  color: var(--muted);
  cursor: default;
}

footer {
  margin-top: 20px;
  text-align: center;
  color: var(--muted);
  font-size: 0.85rem;
}