:root{color-scheme:dark;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background:#081a2b;color:#eaf2f1}*{box-sizing:border-box}body{min-width:320px;min-height:100vh;margin:0;background:#081a2b}button,input{font:inherit}main{width:min(100% - 32px,620px);margin:0 auto;padding:48px 0}header{margin-bottom:24px}h1,h2,h3,p{margin-top:0}h1{font-size:clamp(1.75rem,7vw,2.5rem);line-height:1.1}h2{color:#4fd8c4;font-size:1.1rem}h3{font-size:1rem}p{color:#b8c6c7;line-height:1.55}.eyebrow{margin-bottom:8px;color:#4fd8c4;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.75rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase}.panel,.pending{margin-bottom:16px;padding:20px;border:1px solid #1f3648;border-radius:14px;background:#0e2033}.pending{padding:12px 16px;border-color:#4fd8c466}.pending strong{color:#eaf2f1;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;letter-spacing:.12em}form,label{display:grid;gap:8px}form{gap:16px}label{color:#b8c6c7;font-size:.85rem}input{width:100%;min-height:46px;padding:10px 12px;border:1px solid #3a5468;border-radius:9px;outline:none;background:#122437;color:#eaf2f1}input:focus{border-color:#4fd8c4;box-shadow:0 0 0 3px #4fd8c426}button{min-height:44px;padding:10px 16px;border:1px solid transparent;border-radius:9px;background:#4fd8c4;color:#0b1b2b;cursor:pointer;font-weight:700}button:disabled{cursor:wait;opacity:.6}button.secondary{border-color:#3a5468;background:#122437;color:#eaf2f1}.code-row{display:grid;grid-template-columns:minmax(0,1fr) auto auto;gap:8px}.code-input{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:1.1rem;font-weight:700;letter-spacing:.15em}.confirmation{margin-top:18px;padding:16px;border:1px solid #4fd8c4;border-radius:10px;background:#163549}.success{margin-top:16px;color:#4fd8c4}.error{margin-top:16px;color:#ffb4a8}@media (max-width: 520px){main{padding:28px 0}.code-row{grid-template-columns:1fr 1fr}.code-input{grid-column:1 / -1}}