:root{--bg: #FBF7F0;--surface: #FFFCF6;--fg: #1C1916;--muted: #4A4642;--accent: #B42318;--usd: #3D4A55;--clay: #B42318;--border: color-mix(in oklch, var(--fg) 14%, var(--bg));--fg-soft: color-mix(in oklch, var(--fg) 6%, transparent);--font-display: "IBM Plex Mono", ui-monospace, "SF Mono", Menlo, monospace;--font-body: "IBM Plex Sans", Geist, -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;--font-mono: "IBM Plex Mono", ui-monospace, "SF Mono", Menlo, monospace;--fs-h1: clamp(40px, 6vw, 68px);--fs-h2: clamp(28px, 3.6vw, 44px);--fs-lead: 19px;--container: 1240px;--gutter: 48px;--radius: 2px;--radius-lg: 4px}*,*:before,*:after{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{margin:0;background:var(--bg);color:var(--fg);font-family:var(--font-body);font-size:16px;line-height:1.55;text-rendering:optimizeLegibility}a{color:inherit;text-decoration:none}button,input,select{font:inherit}button{cursor:pointer}[hidden]{display:none!important}img,svg{display:block;max-width:100%}.container{max-width:var(--container);margin-inline:auto;padding-inline:var(--gutter)}.section{padding-block:clamp(40px,7vw,96px)}.section+.section{border-top:1px solid var(--border)}.stack{display:flex;flex-direction:column;gap:16px}.row-between{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}h1,.h1{font-family:var(--font-display);font-size:var(--fs-h1);line-height:1.04;letter-spacing:-.02em;margin:0}h2,.h2{font-family:var(--font-display);font-size:var(--fs-h2);line-height:1.1;margin:0}h3{font-family:var(--font-display);font-size:22px;margin:0}.lead{font-size:var(--fs-lead);color:var(--muted);max-width:60ch;margin:0}.eyebrow{font-family:var(--font-mono);font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);margin:0 0 16px}.meta{font-family:var(--font-mono);font-size:13px;color:var(--muted)}.num{font-family:var(--font-mono);font-variant-numeric:tabular-nums}.app-sub{font-size:15px;font-weight:600;margin:0 0 12px}.app-h{font-size:28px;line-height:1.2;letter-spacing:-.02em;margin:0 0 8px}.app-lead{margin:0 0 28px;color:var(--muted);max-width:48ch}.logo{font-family:var(--font-display);font-size:19px;font-weight:600}.logo-dot{color:var(--accent)}.topnav{position:sticky;top:0;z-index:10;background:var(--bg);border-bottom:1px solid var(--border)}.topnav-inner{display:flex;align-items:center;justify-content:space-between;padding-block:14px;gap:16px}.topnav nav{display:flex;gap:28px}.topnav nav a{font-size:14px;color:var(--muted)}.topnav nav a:hover{color:var(--fg)}.topnav-end{display:flex;align-items:center;gap:12px}.pagefoot{padding-block:56px;color:var(--muted);font-size:13px;border-top:1px solid var(--border)}.foot-nav{display:flex;flex-wrap:wrap;gap:8px 18px;margin-top:18px}.foot-nav a{color:var(--muted);text-decoration:underline;text-underline-offset:3px}.foot-nav a:hover{color:var(--fg)}.legal{max-width:42rem;margin-inline:auto}.legal-lead{margin:16px 0 8px}.legal-block{margin-top:32px}.legal-block h2{font-size:22px;margin-bottom:10px}.legal-p,.legal-block li{color:var(--muted);margin:0 0 12px}.legal-block ul{margin:0 0 12px;padding-left:1.2em}.legal a,.auth-consent a{color:inherit;text-decoration:underline;text-underline-offset:3px}.auth-consent{margin:0;text-align:center}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:11px 20px;border-radius:var(--radius);border:1px solid transparent;font-size:15px;font-weight:500}.btn-primary{background:var(--accent);color:var(--surface);border-color:var(--accent)}.btn-secondary{background:transparent;color:var(--fg);border-color:var(--border)}.btn-ghost{background:transparent;color:var(--fg);border-color:transparent}.btn-danger{color:var(--clay);border-color:color-mix(in oklch,var(--clay) 35%,var(--border));background:transparent}.btn-compact{min-height:36px;padding:6px 12px;font-size:13px}.btn:focus-visible,.input:focus-visible,.number-well:focus-visible,.lang-btn:focus-visible,.choice:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.lang-toggle{display:inline-flex;border:1px dashed var(--border)}.lang-btn{display:inline-flex;align-items:center;min-height:32px;padding:0 10px;border:0;background:transparent;color:var(--muted);font-family:var(--font-mono);font-size:11px;letter-spacing:.06em;text-decoration:none}.lang-btn.is-on{background:var(--fg);color:var(--bg)}.chip{display:inline-flex;align-items:center;min-height:22px;padding:0 8px;border:1px dashed var(--border);font-family:var(--font-mono);font-size:11px}.chip-crc{color:var(--accent)}.chip-usd{color:var(--usd)}.chip-warn{color:var(--clay);border-color:color-mix(in oklch,var(--clay) 35%,var(--border))}.hero{padding-block:clamp(40px,7vw,80px) 24px}.hero-intro{text-align:center}.hero-intro h1{text-wrap:balance}.hero-intro .lead{margin:16px auto 28px;max-width:42rem}.hero-cta{display:flex;gap:12px;flex-wrap:wrap;justify-content:center}.free-banner{border-block:1px dashed var(--border);background:color-mix(in oklch,var(--accent) 6%,var(--bg));padding-block:14px}.free-banner-inner{display:flex;flex-wrap:wrap;justify-content:center;gap:8px 14px}.demo-eye{text-align:center}.demo-head{max-width:40rem;margin:0 auto 36px;text-align:center}.demo-head .lead{margin:12px auto 0}.demo-board,.builder-board{display:grid;grid-template-columns:1fr 1fr;gap:28px;align-items:start}.demo-panel{background:var(--surface);border:1px dashed var(--border);padding:20px;min-width:0}.demo-panel-lead{margin:0 0 18px;font-size:15px}.cta-section{text-align:center}.cta-box{max-width:36rem}.cta-box .lead{margin:16px auto 28px}.dest-list{display:flex;flex-direction:column;gap:12px}.dest-list-wide{max-width:820px;margin-inline:auto}.dest-row{display:grid;grid-template-columns:36px minmax(0,1fr);gap:14px;align-items:start;min-width:0;padding:16px;background:var(--surface);border:1px dashed var(--border)}.dest-copy{min-width:0}.dest-copy h3{font-size:16px;margin-bottom:4px}.dest-num{display:flex;flex-direction:column;gap:2px;margin:0 0 8px;font-size:14px}.dest-num .num{overflow-wrap:anywhere}.dest-actions{display:flex;flex-wrap:wrap;gap:8px;grid-column:1 / -1}.icon-btn{min-height:44px;padding:0 12px;border:1px dashed var(--border);background:var(--surface);color:var(--fg)}.bank-mark{width:36px;height:36px;flex:0 0 36px;border-radius:var(--radius-lg);overflow:hidden;display:grid;place-items:center;font-family:var(--font-mono);font-size:9px;font-weight:700;color:#fff}.bank-mark.sm{width:22px;height:22px;flex-basis:22px}.bank-mark.has-favicon{background:#fff;border:1px solid var(--border)}.bank-favicon{width:100%;height:100%;object-fit:contain;padding:3px}.number-well{display:block;width:100%;text-align:left;padding:14px;background:var(--surface);border:1px dashed var(--border);color:inherit}.well-meta{display:flex;flex-wrap:wrap;gap:6px;align-items:center;margin-bottom:8px}.well-value{font-size:20px;letter-spacing:.02em;overflow-wrap:anywhere}.well-help{margin:8px 0 0;font-size:13px;color:var(--muted)}.number-well.is-copied,.icon-btn.is-copied,.btn.is-copied{background:color-mix(in oklch,var(--accent) 8%,var(--surface));border-color:color-mix(in oklch,var(--accent) 35%,var(--border))}.screen-app{padding:36px var(--gutter) 80px;max-width:880px}.screen-narrow{max-width:520px;margin-inline:auto}.screen-center{text-align:center}.screen-center .app-lead{margin-inline:auto}.screen-center .field,.screen-center .stack{text-align:left}.screen-center .btn{width:100%}.screen-payee{max-width:420px}.app-nav{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));border:1px dashed var(--border);margin-bottom:28px}.app-nav a{display:flex;align-items:center;justify-content:center;min-height:48px;padding:10px 8px;text-align:center;line-height:1.2;font-size:14px;color:var(--muted);background:transparent}.app-nav a[aria-current=page]{background:var(--fg);color:var(--bg)}.field{display:flex;flex-direction:column;gap:6px}.field label{font-size:13px;color:var(--muted)}.input,select.input{min-height:44px;padding:10px 12px;border:1px dashed var(--border);background:var(--surface);color:var(--fg);border-radius:var(--radius)}.choice-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;align-items:stretch}.choice{display:flex;flex-direction:column;justify-content:flex-start;gap:6px;width:100%;height:100%;text-align:left;padding:16px;border:1px dashed var(--border);background:var(--surface);color:var(--fg)}.choice.is-on{border-color:var(--fg);box-shadow:inset 3px 0 0 var(--fg)}.choice small{color:var(--muted);font-size:13px}.check-row{display:flex;gap:12px;align-items:center;width:100%;text-align:left;padding:14px;border:1px dashed var(--border);background:var(--surface);color:var(--fg)}.check-row.is-on{border-color:var(--fg)}.check-row:disabled{opacity:.7;cursor:default}.check-row span{display:flex;flex-direction:column;gap:2px;min-width:0}.check-box{width:16px;height:16px;flex:0 0 16px;border:1px solid var(--fg);background:var(--surface)}.check-row.is-on .check-box{background:var(--fg)}.chip-row{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px;align-items:stretch}.chip-btn{display:inline-flex;align-items:center;justify-content:center;width:100%;min-height:44px;padding:8px 10px;border:1px dashed var(--border);background:var(--surface);color:var(--fg);text-align:center;line-height:1.2}.chip-btn.is-on,.chip-btn:has(:checked){background:var(--fg);color:var(--bg)}.tabs{display:grid;grid-template-columns:1fr 1fr;border:1px dashed var(--border);margin-bottom:28px}.tab{display:flex;align-items:center;justify-content:center;min-height:48px;padding:10px 16px;border:0;background:transparent;color:var(--muted);font-size:15px}.tab.is-on{background:var(--fg);color:var(--bg)}.switch-line{display:flex;align-items:center;gap:10px;margin-top:16px;font-size:14px;color:var(--muted)}#demo-link-opts .app-sub{margin-top:20px}.mail-success,.expired-card,.poster,.empty-card{padding:28px;border:1px dashed var(--border);background:var(--surface)}.poster{max-width:420px;margin:0 auto;text-align:center}.qr-box{width:min(100%,220px);margin:24px auto;padding:14px;border:1px dashed var(--border);background:var(--bg)}.builder-url{margin-top:16px;overflow-wrap:anywhere}.site-frame{max-width:560px;margin-inline:auto;border:1px dashed var(--border);background:var(--surface)}.site-chrome{display:flex;align-items:center;gap:6px;padding:10px 12px;border-bottom:1px dashed var(--border)}.site-dot{width:8px;height:8px;border-radius:99px;background:var(--border)}.site-url{font-family:var(--font-mono);font-size:11px;color:var(--muted)}.site-body{padding:18px 16px}.embed-payee{padding:16px;border:1px dashed var(--border);background:var(--bg)}.embed-code{margin:12px 0 0;font-size:11px;color:var(--muted);overflow-wrap:anywhere}.flash{padding:12px 14px;border:1px dashed var(--border);background:var(--surface);color:var(--clay)}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}@media(max-width:920px){:root{--gutter: 16px;--fs-h1: clamp(32px, 10vw, 42px);--fs-lead: 16px}.topnav nav{display:none}.hero-intro{text-align:left}.hero-cta,.hero-cta .btn{width:100%;flex-direction:column}.demo-head,.demo-eye{text-align:left}.demo-board,.builder-board,.choice-grid{grid-template-columns:1fr}.chip-row{grid-template-columns:1fr 1fr}.screen-app{padding:20px var(--gutter) 48px}.app-nav{grid-template-columns:1fr 1fr}.app-nav a,.tab{min-height:52px;font-size:15px}}