body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
    background:#f7f9fc;
    margin:0;
    padding:20px;
}

.checkout-box {
    max-width:520px;
    margin:0 auto;
    background:#fff;
    border-radius:14px;
    padding:24px;
    box-shadow:0 10px 30px rgba(0,0,0,.08);
}

h2 {
    margin-top:0;
}

.total {
    font-size:22px;
    font-weight:700;
    margin-bottom:16px;
}

.cart-summary {
    margin-bottom:20px;
}

.cart-item {
    padding:10px 0;
    border-bottom:1px solid #eee;
}

.badge {
    display:inline-block;
    background:#2563eb;
    padding:4px 10px;
    border-radius:999px;
    font-size:12px;
    margin-right:6px;
}

#checkout-status {
    display:none;
    margin-top:15px;
    padding:12px;
    border-radius:8px;
    font-size:14px;
}

#checkout-status.processing {
    background:#fff3cd;
    color:#856404;
}

#checkout-status.error {
    background:#f8d7da;
    color:#721c24;
}
.checkout-header {
  display:flex;
  justify-content:space-between;
  align-items:center;
  padding:15px 20px;
  background:#fff;
  border-bottom:1px solid #e5e7eb;
  margin-bottom:20px;
}

.checkout-header .logo {
  font-weight:bold;
  font-size:18px;
  color:#111;
  text-decoration:none;
}

.checkout-header .back-cart {
  color:#0d6efd;
  text-decoration:none;
  font-size:14px;
}