:root{--bg: #0f1417;--panel: #161c20;--panel-2: #1d2429;--border: #2a333a;--text: #e8eef2;--text-dim: #98a3ad;--accent: #4a9eff;--accent-dim: #3366aa;--error: #ff6b6b;--success: #7ed957;--user: #4a9eff;--radius: 6px;--font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;--mono: "SF Mono", Menlo, Consolas, monospace}*{box-sizing:border-box}html,body,#root{height:100%;margin:0;padding:0}body{background:var(--bg);color:var(--text);font-family:var(--font);font-size:15px;line-height:1.5;-webkit-font-smoothing:antialiased}.login-shell{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px}.login-card{width:100%;max-width:420px;background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);padding:40px 32px;text-align:center}.brand-block{margin-bottom:32px}.brand-mark{display:inline-flex;align-items:center;justify-content:center;width:56px;height:56px;border:1px solid var(--border);border-radius:4px;background:var(--panel-2);font-family:var(--mono);font-size:18px;letter-spacing:1px;margin-bottom:16px}.brand-mark.small{width:32px;height:32px;font-size:12px;margin:0}.brand-block h1{font-size:28px;font-weight:500;margin:0 0 4px;letter-spacing:-.3px}.brand-sub{font-size:12px;letter-spacing:1.5px;text-transform:uppercase;color:var(--text-dim)}.tagline{color:var(--text-dim);font-size:14px;margin-bottom:28px}.google-btn{width:100%;padding:12px 16px;background:var(--accent);color:#fff;border:none;border-radius:var(--radius);font-size:15px;font-weight:500;cursor:pointer;transition:background .1s}.google-btn:hover:not(:disabled){background:#5aa8ff}.google-btn:disabled{background:var(--accent-dim);cursor:default}.fineprint{margin-top:24px;font-size:12px;color:var(--text-dim)}.error{color:var(--error);margin-top:16px;font-size:14px}.chat-shell{display:flex;flex-direction:column;height:100vh;max-width:820px;margin:0 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code{font-family:var(--mono);background:#00000040;border:1px solid rgba(255,180,60,.25);border-radius:3px;padding:1px 5px;font-size:11px;color:#f5dba2}.msg{margin-bottom:24px;max-width:100%}.msg-role{font-size:11px;letter-spacing:1.2px;text-transform:uppercase;color:var(--text-dim);margin-bottom:6px}.msg-user .msg-role{color:var(--user)}.msg-body{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);padding:12px 14px}.msg-user .msg-body{background:var(--panel-2);border-color:var(--accent-dim)}.msg-user .msg-text{white-space:pre-wrap;word-wrap:break-word}.msg-assistant .msg-text{word-wrap:break-word}.msg-assistant .msg-text>:first-child{margin-top:0}.msg-assistant .msg-text>:last-child{margin-bottom:0}.msg-assistant .msg-text p{margin:0 0 10px}.msg-assistant .msg-text p:last-child{margin-bottom:0}.msg-assistant .msg-text strong{font-weight:600;color:#fff}.msg-assistant .msg-text em{font-style:italic}.msg-assistant .msg-text 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var(--border);border-radius:var(--radius);padding:6px 10px;cursor:pointer;color:var(--text-dim);font-size:12px;width:100%;text-align:left;font-family:inherit}.tool-header:hover{color:var(--text)}.tool-icon{font-family:var(--mono);width:14px;display:inline-block}.tool-running .tool-icon{animation:spin 1.2s linear infinite;color:var(--accent)}.tool-done .tool-icon{color:var(--success)}.tool-error .tool-icon{color:var(--error)}.tool-label{flex:1}.tool-toggle{color:var(--text-dim);font-size:10px}.tool-input{font-family:var(--mono);font-size:11px;background:var(--bg);padding:10px;border-radius:var(--radius);margin:6px 0 0;overflow-x:auto;color:var(--text-dim)}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.composer{display:flex;gap:8px;padding:16px 20px;border-top:1px solid var(--border);background:var(--panel)}.composer-input{flex:1;background:var(--panel-2);color:var(--text);border:1px solid var(--border);border-radius:var(--radius);padding:10px 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