:root{color-scheme:light;font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,"Apple Color Emoji","Segoe UI Emoji";--gateway-accent: #111827;--gateway-border-grey: #d1d5db}body{margin:0}#root{min-height:100vh}.gateway-checkout-container{width:400px;background:#fff;box-shadow:0 4px 20px #0003;overflow:hidden}.gateway-accent-bg{background-color:var(--gateway-accent)}.gateway-input{width:100%;padding:12px;border:none;text-align:center;font-size:1.1rem;font-weight:600;color:#444;outline:none}.gateway-input:disabled{background:#fffffff2;color:#111827;opacity:1;cursor:not-allowed;border:1px solid rgba(209,213,219,.7)}.gateway-btn{flex:1;padding:15px;font-weight:700;font-size:.9rem;text-transform:uppercase;border:1px solid var(--gateway-border-grey);color:#555;background:#f3f4f6;cursor:pointer}.loader-dots span{width:8px;height:8px;margin:0 2px;background-color:#fff;border-radius:50%;display:inline-block;animation:bounce 1.4s infinite ease-in-out both}.loader-dots span:nth-child(1){animation-delay:-.32s}.loader-dots span:nth-child(2){animation-delay:-.16s}@keyframes bounce{0%,80%,to{transform:scale(0)}40%{transform:scale(1)}}