:root {
  color-scheme: light;
  --bg: #eef3f8;
  --surface: rgba(255, 255, 255, 0.84);
  --surface-border: rgba(125, 147, 176, 0.18);
  --text: #17324d;
  --muted: #5e748d;
  --accent: #2f78d7;
  --accent-strong: #245fb2;
  --shadow: 0 24px 60px rgba(28, 55, 90, 0.14);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Segoe UI", "SF Pro Display", "Helvetica Neue", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(72, 144, 226, 0.2), transparent 30%),
    linear-gradient(180deg, #f5f8fc 0%, var(--bg) 100%);
  color: var(--text);
}

.page {
  width: min(100%, 960px);
  margin: 0 auto;
  padding: 48px 20px 64px;
}

.hero,
.card {
  background: var(--surface);
  backdrop-filter: blur(18px);
  border: 1px solid var(--surface-border);
  border-radius: 28px;
  box-shadow: var(--shadow);
}

.hero {
  padding: 40px;
}

.card {
  margin-top: 22px;
  padding: 28px 32px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 16px;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(47, 120, 215, 0.1);
  color: var(--accent-strong);
  font-size: 14px;
  font-weight: 700;
}

h1 {
  margin: 0 0 16px;
  font-size: clamp(34px, 5vw, 56px);
  line-height: 1.02;
  letter-spacing: -0.03em;
}

h2 {
  margin: 0 0 14px;
  font-size: 24px;
}

.lead,
.hint,
ol {
  color: var(--muted);
  font-size: 17px;
  line-height: 1.7;
}

.actions {
  margin: 30px 0 18px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 24px;
  border-radius: 16px;
  background: linear-gradient(180deg, #3f8ff0 0%, var(--accent) 100%);
  color: #fff;
  text-decoration: none;
  font-size: 16px;
  font-weight: 700;
  box-shadow: 0 16px 34px rgba(47, 120, 215, 0.28);
}

.button:hover {
  background: linear-gradient(180deg, #3a86e3 0%, var(--accent-strong) 100%);
}

code {
  padding: 2px 7px;
  border-radius: 8px;
  background: rgba(23, 50, 77, 0.08);
  font-size: 0.95em;
}

ol {
  margin: 0;
  padding-left: 20px;
}

@media (max-width: 640px) {
  .page {
    padding: 24px 14px 40px;
  }

  .hero,
  .card {
    border-radius: 22px;
  }

  .hero {
    padding: 28px 22px;
  }

  .card {
    padding: 22px;
  }

  .button {
    width: 100%;
  }
}