:root{color-scheme:light}*{box-sizing:border-box}body{margin:0;min-height:100vh;display:flex;flex-direction:column;font-family:IBM Plex Sans,Helvetica Neue,Arial,sans-serif;background:radial-gradient(circle at 10% 20%,rgba(0,140,255,.16),transparent 42%),radial-gradient(circle at 90% 85%,rgba(34,197,94,.14),transparent 38%),linear-gradient(180deg,#f4f8ff,#f8fafc);color:#0f172a}.checkout-site-header{display:flex;align-items:center;justify-content:space-between;gap:1rem;padding:.9rem 1rem;border-bottom:1px solid #dbeafe;background:rgba(255,255,255,.82);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.checkout-brand{font-weight:700;font-size:.98rem;color:#0f172a;text-decoration:none}.checkout-header-link{color:#1d4ed8;text-decoration:none;font-size:.92rem}.checkout-header-link:hover,.checkout-site-footer a:hover{text-decoration:underline}.checkout-site-main{flex:1 1}.checkout-shell{min-height:100%;display:grid;place-items:center;padding:2rem 1rem}.checkout-card{width:min(560px,100%);border:1px solid #dbeafe;border-radius:16px;background:rgba(255,255,255,.86);-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);box-shadow:0 18px 36px rgba(2,6,23,.08),0 4px 12px rgba(2,6,23,.06);padding:1.5rem}.checkout-card h1{margin:0 0 .5rem;font-size:1.375rem}.checkout-card p{margin:0;line-height:1.55;color:#334155}.checkout-meta{margin-top:1rem;display:grid;grid-gap:.4rem;gap:.4rem;font-size:.9rem;color:#475569}.checkout-error{margin-top:.9rem;color:#b91c1c}.checkout-site-footer{display:flex;align-items:center;justify-content:space-between;gap:1rem;flex-wrap:wrap;padding:1rem;border-top:1px solid #dbeafe;background:rgba(255,255,255,.82);color:#334155;font-size:.88rem}.checkout-site-footer nav{display:flex;gap:.9rem;flex-wrap:wrap}.checkout-site-footer a{color:#1d4ed8;text-decoration:none}