:root{--ink:#1d1d1b;--muted:#5f5c55;--line:#c9c6bd;--soft:#e4e2dc;--paper:#f6f5f1;--bad:#7f1d1d;color:var(--ink);background:var(--paper);font-family:IBM Plex Sans,system-ui,sans-serif}*{box-sizing:border-box}body{background:var(--paper);margin:0}.page{max-width:480px;padding:max(24px, env(safe-area-inset-top)) 16px 48px;flex-direction:column;gap:12px;margin:0 auto;display:flex}h1{margin:0 0 4px;font-size:26px}.label{letter-spacing:.06em;text-transform:uppercase;color:var(--muted);margin:0;font-family:IBM Plex Mono,monospace;font-size:11px}label{flex-direction:column;gap:6px;font-size:13px;font-weight:600;display:flex}input{font:inherit;border:1.5px solid var(--ink);background:#fff;border-radius:12px;min-height:48px;padding:0 14px;font-size:16px}.card{border:1.5px solid var(--line);background:#fff;border-radius:14px;margin:0;padding:0;overflow:hidden}.card.pad{flex-direction:column;gap:6px;padding:18px;display:flex}.list{list-style:none}.list button{text-align:left;width:100%;min-height:48px;font:inherit;border:0;border-bottom:1px solid var(--soft);background:#fff;padding:0 14px;font-weight:600}.row{border-bottom:1px solid var(--soft);align-items:center;gap:10px;min-height:44px;padding:8px 14px;display:flex}.row:last-child{border-bottom:0}.grow{flex:1}.big{margin:0;font-size:30px;font-weight:700}.muted{color:var(--muted);margin:0;font-size:13px}.mono{font-family:IBM Plex Mono,monospace}.error{color:var(--bad);font-weight:600}.pay-link{background:var(--ink);width:100%;min-height:48px;color:var(--paper);border-radius:12px;justify-content:center;align-items:center;margin-top:6px;padding:0 14px;font-weight:600;text-decoration:none;display:flex}.pay-link.ghost{color:var(--ink);border:1.5px solid var(--ink);background:0 0}.pay-ahead{margin-top:10px}