:root{--paper:#f5f5ef;--forest:#173f35;--ink:#193b31;--muted:#52665b;--lime:#e1efa6;--line:#c6d0c4;--danger:#a12626}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.5 'Segoe UI',Arial,sans-serif}a{color:inherit}button,input,textarea{font:inherit}button,a,summary,input,textarea{touch-action:manipulation}button{min-height:44px;border:1px solid var(--forest);border-radius:10px;padding:10px 16px;background:var(--forest);color:white;cursor:pointer;transition:background 150ms}button:hover{background:#285747}button:disabled{opacity:.5;cursor:default}.secondary{background:transparent;color:var(--forest)}.secondary:hover{background:#eaf0df}a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible,textarea:focus-visible{outline:3px solid #6e8019;outline-offset:3px}input,textarea{width:100%;min-height:44px;border:1px solid #8b9b8d;border-radius:8px;padding:10px;background:#fff;color:var(--ink)}textarea{resize:vertical;overflow-wrap:anywhere}label{display:block;font-size:14px;font-weight:600;margin:14px 0 6px}.skip{position:fixed;top:-80px;left:12px;background:white;z-index:10;padding:12px}.skip:focus{top:8px}.topbar{display:flex;justify-content:space-between;align-items:center;padding:20px max(24px,calc((100vw - 1200px)/2));border-bottom:1px solid var(--line);gap:20px}.identity{display:flex;gap:12px;align-items:center;font-size:22px;font-weight:600;text-decoration:none}.identity small{display:block;font-size:9px;letter-spacing:1px;color:var(--muted)}nav{display:flex;gap:24px}nav a{font-size:14px;text-underline-offset:7px;padding:12px 0}main{max-width:1248px;margin:auto;padding:32px 24px}.intro{display:flex;align-items:center;justify-content:space-between;gap:24px}.eyebrow{font-size:11px;letter-spacing:1.5px;font-weight:700;color:var(--muted);margin:0 0 8px}h1,h2{font-family:Georgia,serif;font-weight:400;line-height:1.15;margin:0 0 12px}h1{font-size:46px}h2{font-size:28px}h3{margin:8px 0}p{margin:8px 0 16px}.intro p{color:var(--muted)}.tag{display:inline-block;font-size:12px;line-height:1.5;padding:7px 11px;background:#e9efdf;border:1px solid var(--line);border-radius:20px}.status{min-height:40px;font-size:14px;color:var(--muted);padding:8px 0}.status.error{color:var(--danger)}.workspace{display:grid;grid-template-columns:300px minmax(0,1fr);gap:20px}.panel{background:#fff;border:1px solid var(--line);border-radius:18px;padding:24px;min-width:0}.contacts{align-self:start}.contacts button{margin-top:12px;width:100%}.contact-list{display:grid;gap:8px;margin:24px 0}.contact-list button{margin:0;text-align:left;background:#f0f4e8;color:var(--forest);border-color:var(--line);overflow-wrap:anywhere}.contact-list button[aria-pressed=true]{background:var(--forest);color:white}.quiet{font-size:13px;color:var(--muted)}.code{font:12px/1.8 monospace;overflow-wrap:anywhere;background:#f1f4ed;padding:12px}.check{display:flex;gap:10px;font-weight:400}.check input{width:20px;min-height:20px;flex-shrink:0}details{margin-top:20px}summary{cursor:pointer;font-weight:600;min-height:44px;display:list-item;padding:10px 0}details p{font-size:14px;color:var(--muted)}.conversation-top{display:flex;justify-content:space-between;align-items:center;gap:16px;border-bottom:1px solid var(--line);padding-bottom:16px}.conversation-top h2{margin:0}.messages{min-height:280px;max-height:540px;overflow:auto;display:flex;flex-direction:column;gap:16px;padding:24px 2px}.empty{margin:auto;color:var(--muted);max-width:340px;text-align:center}.bubble{max-width:85%;padding:12px 16px;border-radius:14px;background:#edf1e8;align-self:flex-start;white-space:pre-wrap;overflow-wrap:anywhere}.bubble.outgoing{background:var(--forest);color:white;align-self:flex-end}.bubble small{display:block;font-size:11px;margin-top:6px;opacity:.85}.compose-actions{display:flex;align-items:center;gap:24px;justify-content:space-between;margin-top:12px}.compose-actions p{font-size:12px;color:var(--muted);max-width:300px;margin:0}.compose-actions button{flex-shrink:0}#handover{border-top:1px solid var(--line);padding-top:12px}#handover button{margin-top:12px}.experiment{display:grid;grid-template-columns:1fr auto;gap:24px;align-items:center;margin-top:24px;background:#edf2e2}.experiment p{max-width:730px}.experiment h2{font-size:32px}#exchange-results{grid-column:1/-1}#exchange-results:empty{display:none}.experiment ol{padding-left:24px}.experiment li{padding:8px 0;overflow-wrap:anywhere}.balances{display:flex;flex-wrap:wrap;gap:10px}.balances span{padding:10px 14px;background:white;border-radius:8px;border:1px solid var(--line);font-size:14px}.technical{background:transparent}footer{padding:24px 0;display:flex;justify-content:space-between;gap:20px;align-items:center;font-size:12px;color:var(--muted)}[hidden]{display:none!important}@media(max-width:800px){.topbar{padding:16px 20px;align-items:flex-start}.identity{font-size:19px}nav{gap:12px;flex-wrap:wrap;justify-content:flex-end}nav a{font-size:12px}.intro{display:block}h1{font-size:38px}.workspace{grid-template-columns:1fr}.panel{padding:20px}.contacts{order:0}.messages{min-height:200px}.experiment{grid-template-columns:1fr;gap:12px}.experiment button{justify-self:start}.conversation-top{align-items:flex-start;flex-direction:column}.compose-actions{gap:12px;align-items:flex-end}.compose-actions p{max-width:160px}main{padding:24px 16px}footer{align-items:flex-start;flex-direction:column}.bubble{max-width:94%}}@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}
.skip:not(:focus){clip-path:inset(50%);width:1px;height:1px;overflow:hidden;white-space:nowrap}.bubble button{display:block;color:inherit;background:transparent;border-color:#b3c4a6;margin-top:10px;font-size:12px}.bubble button:hover{background:#ffffff18}
.person{display:flex;gap:14px;align-items:center;min-width:0}.person>div{min-width:0}.person h3,.share-card h3{overflow-wrap:anywhere;font-size:22px;font-weight:600;margin:0}.person p{margin:4px 0 0}.avatar{display:inline-flex;align-items:center;justify-content:center;flex-shrink:0;width:48px;height:48px;border-radius:50%;background:var(--lime);color:var(--forest);font-size:21px;font-weight:600}.avatar.large{width:64px;height:64px;font-size:28px}.contact-list button{display:flex;align-items:center;gap:12px}.contact-list .avatar{width:36px;height:36px;font-size:16px}.contact-list button>span:last-child{min-width:0}.contact-list:empty{margin:20px 0}.contacts>h2{font-size:24px;margin-bottom:24px}
dialog{color:var(--ink);border:1px solid var(--line);border-radius:22px;padding:28px;width:min(480px,calc(100% - 24px));max-height:calc(100dvh - 32px);background:var(--paper);overflow-y:auto;overscroll-behavior:contain}dialog::backdrop{background:#102a23a8}dialog h2{font-size:28px;margin:0}.dialog-top{display:flex;align-items:center;justify-content:space-between;gap:12px}.dialog-top button{font-size:14px;padding:8px 12px}.dialog-top+p{margin-top:16px}.share-card{border:1px solid var(--line);background:white;color:#173f35;border-radius:16px;text-align:center;padding:24px 16px 12px}.share-card h3{margin:12px 0 4px}.share-card p{font-size:14px;color:var(--muted);margin:8px 0}.share-card canvas{display:block;width:100%;max-width:300px;height:auto;margin:0 auto}.dialog-actions{display:flex;gap:12px}.dialog-actions button{flex:1}.file-label{border:1px solid var(--forest);border-radius:10px;padding:12px 16px;text-align:center;cursor:pointer;min-height:48px;font-size:16px;font-weight:400}#add-contact>#scan-contact,#confirm-contact{width:100%}.visually-hidden{position:absolute;width:1px;height:1px;min-height:0;opacity:0;padding:0;overflow:hidden}label.file-label:has(+input[type=file]:focus-visible){outline:3px solid #6e8019;outline-offset:3px}#contact-feedback{margin:16px 0;overflow-wrap:anywhere}#contact-review{padding:20px 0 0;border-top:1px solid var(--line)}#contact-review .check{font-size:14px;line-height:1.5;align-items:flex-start;margin:20px 0}#contact-review .check input{margin-top:3px}#contact-camera{display:block;width:100%;max-height:260px;border-radius:12px;background:var(--forest);margin:16px 0;object-fit:cover}.error{color:var(--danger)}dialog details{border-top:1px solid var(--line);padding-top:8px}dialog details details{border:0}dialog textarea{font-family:monospace;font-size:12px}@media(max-width:500px){dialog{padding:20px}.share-card{padding:20px 12px 12px}.dialog-actions{gap:8px}.dialog-actions button{padding:10px 12px}}
select{font:inherit;min-height:44px;border:1px solid #8b9b8d;border-radius:8px;background:white;color:var(--ink);padding:8px;max-width:100%}select:focus-visible{outline:3px solid #6e8019;outline-offset:3px}.money-actions{display:flex;flex-wrap:wrap;gap:10px;border-top:1px solid var(--line);padding-top:16px}.money-actions button{font-size:14px}.balance-row{display:grid;grid-template-columns:auto 1fr;gap:2px 8px;padding:10px 0;border-bottom:1px solid var(--line);align-items:baseline}.balance-row strong{font-size:22px;overflow-wrap:anywhere}.balance-row span,.balance-row small{font-size:13px}.balance-row small{grid-column:1/-1;color:var(--muted)}#demo-money{border-top:1px solid var(--line);padding:20px 0 4px;margin-bottom:16px}#demo-money .quiet{margin:12px 0 0}.bubble.financial{padding:0;border:1px solid var(--line);background:white;color:var(--ink);width:min(380px,100%);white-space:normal;overflow:hidden}.trade-card{padding:20px}.trade-card h3{font-size:21px;margin:4px 0 16px}.trade-amounts{display:grid;grid-template-columns:80px 1fr;gap:8px;margin:12px 0}.trade-amounts dt{font-size:13px;color:var(--muted)}.trade-amounts dd{margin:0;font-size:17px;font-weight:600;overflow-wrap:anywhere}.trade-state{font-size:13px;padding:8px 10px;background:var(--lime);border-radius:8px;margin:16px 0 10px}.trade-card small{font-size:11px;color:var(--muted)}.bubble.financial>button{color:var(--forest);margin:0;border:0;border-radius:0;border-top:1px solid var(--line);width:100%;font-size:13px}.trade-card .review-offer{background:var(--forest);color:white;border-color:var(--forest);font-size:14px;width:100%;margin:12px 0}.trade-card .review-offer:hover{background:#285747}.payment-amount{font-size:24px;font-weight:600}.amount-input{display:grid;grid-template-columns:minmax(70px,1fr) minmax(140px,1.4fr);gap:10px}#trade-dialog .tag{margin-top:16px}#trade-submit,#agree-trade{width:100%;margin-top:8px}#trade-review-card .trade-card{border:1px solid var(--line);border-radius:14px;background:white}@media(max-width:500px){.trade-card{padding:16px}.trade-amounts{grid-template-columns:64px 1fr}.trade-amounts dd{font-size:16px}}
.bubble{flex-shrink:0}

#share-contact .contact-actions{justify-content:center;flex-wrap:nowrap;gap:12px}#share-contact .contact-action{flex:0 0 48px;width:48px;height:48px;padding:12px;display:inline-flex;align-items:center;justify-content:center;transition:background 150ms,opacity 100ms}#share-contact .contact-action:active{opacity:.75}.contact-action svg{width:24px;height:24px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}