:root {
  --accent: #00c896;
  --bg-main: #f8f8f8;
  --text-main: #000;
  --text-muted: #555;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: "Inter", system-ui, sans-serif;
}

body {
  background: var(--bg-main);
  color: var(--text-main);
}

header {
  padding: 20px 32px;
  border-bottom: 1px solid #000;
}

.checkout-wrapper {
  max-width: 520px;
  margin: 80px auto;
  padding: 0 20px;
}

.checkout-wrapper h1 {
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 32px;
}

.checkout-card {
  background: #fff;
  border-radius: 22px;
  padding: 32px;
  box-shadow: 0 30px 60px rgba(0,0,0,0.08);
}

.checkout-row {
  display: flex;
  justify-content: space-between;
  margin-bottom: 14px;
}

.checkout-row span {
  color: var(--text-muted);
}

.checkout-divider {
  height: 1px;
  background: #ddd;
  margin: 20px 0;
}

.checkout-disclaimer {
  font-size: 0.75rem;
  color: #666;
  margin-bottom: 24px;
  line-height: 1.4;
}

.btn-primary {
  display: block;
  width: 100%;
  background: var(--accent);
  color: #000;
  padding: 14px;
  border-radius: 999px;
  text-align: center;
  font-weight: 600;
  text-decoration: none;
}