:root {
  --background: #0b0c0e;
  --surface: rgba(255, 255, 255, 0.04);
  --surface-strong: rgba(255, 255, 255, 0.08);
  --border: rgba(255, 255, 255, 0.1);
  --text: #f2f3f5;
  --text-muted: rgba(242, 243, 245, 0.62);
  --accent: #3d7bff;
  --radius: 18px;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  display: grid;
  place-items: center;
  min-height: 100vh;
  padding: 24px 16px;
  background:
    radial-gradient(1200px 600px at 50% -10%, rgba(61, 123, 255, 0.14), transparent 60%),
    var(--background);
  color: var(--text);
  font: 300 16px/1.5 system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
}

.card {
  width: 100%;
  max-width: 420px;
  padding: 32px 28px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.45);
}

.brand {
  margin: 0 0 28px;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-muted);
}

h1 {
  margin: 0 0 10px;
  font-size: 24px;
  font-weight: 400;
  line-height: 1.25;
}

.lead {
  margin: 0 0 28px;
  color: var(--text-muted);
}

.actions {
  display: grid;
  gap: 12px;
}

.button {
  display: block;
  padding: 14px 18px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--surface-strong);
  color: var(--text);
  font-weight: 400;
  text-align: center;
  text-decoration: none;
}

.button.primary {
  border-color: transparent;
  background: var(--accent);
  box-shadow: 0 8px 24px rgba(61, 123, 255, 0.35);
}

.button:focus-visible {
  outline: 2px solid var(--text);
  outline-offset: 2px;
}

.hint {
  margin: 20px 0 0;
  font-size: 14px;
  color: var(--text-muted);
}

button.button {
  width: 100%;
  font: inherit;
  cursor: pointer;
}

[hidden] {
  display: none !important;
}