:root {
  color-scheme: light;
  --bg-1: #f3f7ff;
  --bg-2: #eef6f0;
  --card: rgba(255, 255, 255, 0.9);
  --text: #172033;
  --muted: #5f6b84;
  --line: rgba(216, 222, 234, 0.95);
  --primary: #1976d2;
  --primary-strong: #125aa4;
  --shadow: 0 24px 70px rgba(24, 39, 75, 0.14);
}

* {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  font-family: Arial, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(25, 118, 210, 0.14), transparent 36%),
    radial-gradient(circle at bottom right, rgba(46, 125, 50, 0.12), transparent 34%),
    linear-gradient(180deg, var(--bg-1), var(--bg-2));
}

.page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 28px 16px;
}

.card {
  width: min(540px, 100%);
  padding: 32px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--card);
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
}

.stack {
  display: grid;
  gap: 18px;
}

.eyebrow {
  margin: 0;
  color: var(--primary);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  font-size: clamp(2rem, 4vw, 2.7rem);
  line-height: 1.05;
  letter-spacing: -0.04em;
}

.lead,
.note {
  margin: 0;
  color: var(--muted);
  line-height: 1.6;
}

.actions {
  display: flex;
  justify-content: center;
}

.button {
  appearance: none;
  border: 0;
  border-radius: 4px;
  padding: 14px 18px;
  min-width: 220px;
  background: linear-gradient(180deg, var(--primary), var(--primary-strong));
  color: #fff;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
  box-shadow: 0 12px 24px rgba(25, 118, 210, 0.18);
  transition: transform 0.15s ease, filter 0.15s ease, background-color 0.15s ease;
}

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

.button:focus-visible {
  outline: 3px solid rgba(25, 118, 210, 0.25);
  outline-offset: 2px;
}

@media (max-width: 640px) {
  .page {
    padding: 16px;
  }

  .card {
    padding: 24px;
  }

  .actions,
  .button {
    width: 100%;
  }
}