*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--bg: #0a0a0f;--bg-surface: #12121a;--bg-elevated: #1a1a26;--border: #2a2a3a;--text: #e4e4ef;--text-dim: #8888a0;--accent: #f0b90b;--accent-dim: #c49a08;--green: #22c55e;--red: #ef4444;--orange: #f59e0b;--radius: 8px;--font: "SF Mono", "Fira Code", "JetBrains Mono", monospace}html,body,#root{height:100%}body{font-family:var(--font);font-size:14px;color:var(--text);background:var(--bg);line-height:1.5}.app{display:flex;flex-direction:column;height:100%;max-width:860px;margin:0 auto}.app-header{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid var(--border)}.app-title h1{font-size:18px;font-weight:700;color:var(--accent);letter-spacing:-.5px}.app-subtitle{font-size:11px;color:var(--text-dim);margin-left:4px}.app-toolbar{display:flex;align-items:center;gap:8px;padding:10px 20px;border-bottom:1px solid var(--border)}.app-error{padding:8px 20px;background:#ef44441a;color:var(--red);font-size:12px;border-bottom:1px solid rgba(239,68,68,.2)}.btn{display:inline-flex;align-items:center;gap:6px;padding:8px 16px;border-radius:var(--radius);border:1px solid var(--border);background:var(--bg-elevated);color:var(--text);font-family:var(--font);font-size:13px;cursor:pointer;transition:background .15s,border-color .15s;white-space:nowrap}.btn:hover:not(:disabled){background:var(--border)}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:var(--accent);color:#000;border-color:var(--accent);font-weight:600}.btn-primary:hover:not(:disabled){background:var(--accent-dim);border-color:var(--accent-dim)}.btn-warning{background:#f59e0b26;border-color:var(--orange);color:var(--orange)}.btn-ghost{background:transparent;border-color:transparent;color:var(--text-dim)}.btn-ghost:hover:not(:disabled){background:var(--bg-elevated);color:var(--text)}.btn-sm{padding:4px 10px;font-size:12px}.wallet-bar{display:flex;align-items:center;gap:10px;flex-wrap:wrap}.wallet-picker{display:flex;align-items:center;gap:6px}.btn-wallet{display:inline-flex;align-items:center;gap:6px;padding:6px 12px;border-radius:var(--radius);border:1px solid var(--border);background:var(--bg-elevated);color:var(--text);font-family:var(--font);font-size:13px;cursor:pointer;transition:background .15s,border-color .15s;white-space:nowrap}.btn-wallet:hover{background:var(--border);border-color:var(--accent)}.wallet-icon{border-radius:4px;flex-shrink:0}.wallet-info{display:flex;align-items:center;gap:8px}.wallet-name{font-size:12px;color:var(--text-dim);font-weight:600}.wallet-address{font-size:13px;color:var(--text);background:var(--bg-elevated);padding:4px 10px;border-radius:var(--radius);border:1px solid var(--border)}.chain-badge{font-size:11px;padding:3px 8px;border-radius:var(--radius);font-weight:600}.chain-ok{background:#22c55e26;color:var(--green);border:1px solid rgba(34,197,94,.3)}.wallet-error{font-size:12px;color:var(--red)}.server-config{display:flex;align-items:center;gap:8px;flex:1;min-width:0}.server-label{font-size:12px;color:var(--text-dim);font-weight:600;flex-shrink:0}.server-url{font-size:12px;color:var(--text);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.server-input{flex:1;min-width:0;padding:4px 8px;border-radius:var(--radius);border:1px solid var(--accent);background:var(--bg);color:var(--text);font-family:var(--font);font-size:12px;outline:none}.model-selector{flex:1}.model-selector select{width:100%;padding:6px 10px;border-radius:var(--radius);border:1px solid var(--border);background:var(--bg-elevated);color:var(--text);font-family:var(--font);font-size:13px;cursor:pointer;-webkit-appearance:auto;-moz-appearance:auto;appearance:auto}.model-selector select:disabled{opacity:.5;cursor:not-allowed}.chat-window{display:flex;flex-direction:column;flex:1;min-height:0}.messages{flex:1;overflow-y:auto;padding:20px;display:flex;flex-direction:column;gap:16px}.messages-empty{text-align:center;color:var(--text-dim);padding:60px 20px;font-size:13px}.message{max-width:85%;padding:10px 14px;border-radius:var(--radius);border:1px solid var(--border)}.message-user{align-self:flex-end;background:#f0b90b14;border-color:#f0b90b33}.message-assistant{align-self:flex-start;background:var(--bg-surface)}.message-role{font-size:11px;font-weight:600;color:var(--text-dim);margin-bottom:4px;text-transform:uppercase;letter-spacing:.5px}.message-content{font-size:14px;line-height:1.6;white-space:pre-wrap;word-break:break-word}.typing-indicator{color:var(--text-dim);animation:pulse 1.5s infinite}@keyframes pulse{0%,to{opacity:.4}50%{opacity:1}}.payment-badge{display:inline-flex;align-items:center;gap:6px;margin-top:8px;padding:3px 8px;border-radius:var(--radius);font-size:11px;font-weight:600}.payment-signing{background:#f59e0b1a;color:var(--orange);border:1px solid rgba(245,158,11,.2)}.payment-sent{background:#22c55e1a;color:var(--green);border:1px solid rgba(34,197,94,.2)}.payment-settled{background:#22c55e26;color:var(--green);border:1px solid rgba(34,197,94,.3)}.payment-error{background:#ef44441a;color:var(--red);border:1px solid rgba(239,68,68,.2)}.payment-cost{font-weight:700}.payment-tx{color:inherit;text-decoration:underline;text-underline-offset:2px}.payment-tx:hover{opacity:.8}.payment-error-text{font-weight:400}.chat-input-bar{display:flex;gap:8px;padding:16px 20px;border-top:1px solid var(--border);background:var(--bg-surface)}.chat-input{flex:1;padding:10px 14px;border-radius:var(--radius);border:1px solid var(--border);background:var(--bg);color:var(--text);font-family:var(--font);font-size:14px;outline:none;transition:border-color .15s}.chat-input:focus{border-color:var(--accent)}.chat-input:disabled{opacity:.5}.chat-input::placeholder{color:var(--text-dim)}.messages::-webkit-scrollbar{width:6px}.messages::-webkit-scrollbar-track{background:transparent}.messages::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px}.messages::-webkit-scrollbar-thumb:hover{background:var(--text-dim)}