:root {
  --brand: #1d4ed8;
  --text: #0f172a;
  --muted: #475569;
  --bg: #f8fafc;
  --card: #ffffff;
  --border: #e2e8f0;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, Arial, Helvetica, sans-serif;
  line-height: 1.6;
}

body {
  padding: 32px 16px;
}

.container {
  max-width: 900px;
  margin: 0 auto;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 28px;
  box-shadow: 0 12px 32px rgba(15, 23, 42, 0.06);
}

.header {
  margin-bottom: 24px;
}

.eyebrow {
  color: var(--brand);
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin: 0 0 8px;
}

h1 {
  margin: 0 0 8px;
  font-size: 34px;
  line-height: 1.2;
}

h2 {
  margin-top: 28px;
  font-size: 22px;
}

p,
li {
  color: var(--muted);
  font-size: 16px;
}

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

nav {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 16px;
}

nav a,
.button {
  display: inline-block;
  padding: 10px 16px;
  border-radius: 10px;
  text-decoration: none;
  border: 1px solid var(--border);
  background: #fff;
  color: var(--text);
  font-weight: 600;
}

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

.notice {
  border-left: 4px solid var(--brand);
  background: #eff6ff;
  padding: 14px 16px;
  border-radius: 12px;
  margin: 16px 0;
}

.price-box {
  display: inline-block;
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 20px 24px;
  background: #fff;
  margin: 12px 0 20px;
}

.price {
  font-size: 42px;
  font-weight: 800;
  line-height: 1;
  margin: 0;
}

.price small {
  font-size: 16px;
  font-weight: 600;
  color: var(--muted);
}

.footer {
  margin-top: 28px;
  font-size: 14px;
  color: var(--muted);
}