:root{--paper: #F4F6F5;--panel: #FFFFFF;--ink: #151B19;--ink-soft: #4B5A56;--line: #D8E0DD;--accent: #1F5D5B;--accent-ink: #0E3B39;--accent-soft: #E4EFEE;--marigold: #B9781A;--marigold-soft: #F7EBD8;--shadow: 0 1px 2px rgba(15, 30, 27, .06), 0 8px 24px -12px rgba(15, 30, 27, .18);color-scheme:light dark}@media (prefers-color-scheme: dark){:root{--paper: #11151A;--panel: #171D22;--ink: #E9EFED;--ink-soft: #9FB0AB;--line: #2A3339;--accent: #5FBDB6;--accent-ink: #CDEFEA;--accent-soft: #1B2F2E;--marigold: #E0A84C;--marigold-soft: #2E2515;--shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 12px 28px -14px rgba(0, 0, 0, .55)}}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font-family:Public Sans,ui-sans-serif,system-ui,sans-serif;line-height:1.5}h1{font-family:Manrope,ui-sans-serif,system-ui,sans-serif;text-wrap:balance;margin:0;font-size:clamp(22px,5vw,28px);font-weight:800;letter-spacing:.02em}.wrap{max-width:600px;margin:0 auto;padding:40px 20px 56px}header{margin-bottom:22px;text-align:center}.panel{background:var(--panel);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);padding:22px}.panel+.panel{margin-top:18px}label{display:block;font-size:12.5px;font-weight:600;color:var(--ink-soft);margin-bottom:6px}.field{margin-bottom:16px}.field:last-child{margin-bottom:0}input[type=text],input[type=number]{width:100%;font:500 15px/1.3 Public Sans,sans-serif;color:var(--ink);background:var(--paper);border:1px solid var(--line);border-radius:8px;padding:10px 12px;-webkit-appearance:none;-moz-appearance:none;appearance:none}input.mono{font-family:IBM Plex Mono,monospace}input:focus{outline:2px solid var(--accent);outline-offset:1px;border-color:var(--accent)}.field-note{font-size:11.5px;color:var(--ink-soft);margin-top:5px}.combobox{position:relative}.combobox input{cursor:text}.combo-list{position:absolute;z-index:20;left:0;right:0;top:calc(100% + 6px);margin:0;padding:6px;list-style:none;background:var(--panel);border:1px solid var(--line);border-radius:10px;box-shadow:var(--shadow);max-height:260px;overflow-y:auto}.combo-group{font-family:IBM Plex Mono,monospace;font-size:10px;letter-spacing:.06em;text-transform:uppercase;color:var(--ink-soft);padding:8px 8px 4px}.combo-option{padding:8px 10px;border-radius:7px;font-size:14.5px;cursor:pointer}.combo-option.active{background:var(--accent-soft);color:var(--accent-ink)}.combo-empty{padding:10px;font-size:13px;color:var(--ink-soft)}.amount-toggle{display:flex;gap:8px;margin-bottom:10px}.amount-toggle button{flex:1;padding:9px 10px;border-radius:8px;border:1px solid var(--line);background:var(--paper);color:var(--ink-soft);font:600 13px Public Sans,sans-serif;cursor:pointer}.amount-toggle button.active{background:var(--accent-soft);color:var(--accent-ink);border-color:var(--accent)}details.advanced{margin-top:16px}details.advanced summary{cursor:pointer;font-size:12.5px;font-weight:600;color:var(--ink-soft);list-style:none}details.advanced summary::-webkit-details-marker{display:none}details.advanced summary:before{content:"▸";color:var(--accent)}details.advanced[open] summary:before{content:"▾"}.acquirer-box{background:var(--accent-soft);border:1px dashed color-mix(in srgb,var(--accent) 55%,var(--line));border-radius:10px;padding:12px 14px;margin-top:10px}.acquirer-box label{color:var(--accent-ink)}.pill{display:inline-flex;align-items:center;gap:5px;font-family:IBM Plex Mono,monospace;font-size:10px;letter-spacing:.04em;text-transform:uppercase;font-weight:600;padding:3px 8px;border-radius:999px;background:var(--marigold-soft);color:var(--marigold);border:1px solid color-mix(in srgb,var(--marigold) 40%,transparent)}.qr-card{text-align:center}.qr-holder{width:min(230px,100%);aspect-ratio:1;margin:2px auto 16px;background:#fff;border-radius:12px;display:flex;align-items:center;justify-content:center;padding:14px;box-shadow:var(--shadow)}.qr-holder img{width:100%;height:100%;image-rendering:pixelated}.merchant-line{font-family:Manrope,sans-serif;font-weight:700;font-size:17px}.merchant-sub{color:var(--ink-soft);font-size:12.5px;margin-top:2px}.amount-line{font-family:Manrope,sans-serif;font-weight:700;font-size:19px;color:var(--accent-ink);margin-top:10px}.status-row{display:flex;justify-content:center;margin-top:10px}