:root{--bg-page: #f7f7f8;--bg-white: #ffffff;--bg-subtle: #f0f0f2;--bg-code: #f4f4f7;--bg-user-msg: #e8e6f0;--accent: #4f46e5;--accent-light: #e8e6fb;--accent-hover: #4338ca;--danger: #dc2626;--danger-light: #fee2e2;--text-primary: #1a1a1a;--text-body: #2d2d2d;--text-secondary: #6b6b6b;--text-muted: #9a9a9a;--text-code: #c7254e;--border: #e2e2e5;--border-strong: #d0d0d4;--radius-sm: 6px;--radius-md: 10px;--radius-lg: 14px;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .05);--shadow-md: 0 2px 8px rgba(0, 0, 0, .08);--transition: .15s ease}*{margin:0;padding:0;box-sizing:border-box}body{font-family:Inter,system-ui,sans-serif;background:var(--bg-page);color:var(--text-primary);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}.app{display:flex;flex-direction:column;height:100vh;overflow:hidden}.app-body{display:flex;flex:1;overflow:hidden}.header{background:var(--bg-white);border-bottom:1px solid var(--border);padding:0 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var(--border);padding-top:4px;margin-top:4px}.branch-repo-header{display:flex;align-items:center;gap:6px;padding:6px 10px 2px;-webkit-user-select:none;user-select:none}.branch-repo-name{font-family:JetBrains Mono,monospace;font-size:11px;font-weight:700;color:var(--text-muted);text-transform:uppercase;letter-spacing:.5px}.branch-repo-updated{font-family:JetBrains Mono,monospace;font-size:10px;color:var(--text-muted);opacity:.7;margin-left:auto;white-space:nowrap}.branch-repo-fetch-btn{flex-shrink:0;display:inline-flex;align-items:center;justify-content:center;width:20px;height:20px;padding:0;border:none;border-radius:4px;background:transparent;color:var(--text-muted);font-size:14px;cursor:pointer;transition:all var(--transition);line-height:1}.branch-repo-fetch-btn:hover:not(:disabled){color:var(--accent);background:var(--accent-light)}.branch-repo-fetch-btn:disabled{opacity:.4;cursor:not-allowed}.branch-repo-fetch-btn.spinning{animation:spin .8s linear infinite}@keyframes 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var(--border);border-radius:var(--radius-sm);background:var(--bg-secondary);color:var(--text-primary);font-family:Inter,sans-serif;font-size:12px;cursor:pointer;flex-shrink:0}.chat-effort-select:disabled{opacity:.4;cursor:not-allowed}.login-page{display:flex;align-items:center;justify-content:center;min-height:100vh;background:var(--bg-page);padding:24px}.login-card{background:var(--bg-white);border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:var(--shadow-md);padding:40px 36px 36px;width:100%;max-width:380px;display:flex;flex-direction:column;gap:20px}.login-header{display:flex;align-items:center;gap:10px;margin-bottom:4px}.login-header h2{font-size:18px;font-weight:700;letter-spacing:-.02em;color:var(--text-primary)}.login-header h2 span{color:var(--text-muted);font-weight:500;margin-left:6px;font-size:16px}.login-field{display:flex;flex-direction:column;gap:6px}.login-field span{font-size:13px;font-weight:600;color:var(--text-secondary)}.login-field 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var(--transition)}.login-submit:hover:not(:disabled){background:var(--accent-hover);box-shadow:var(--shadow-md)}.login-submit:disabled{opacity:.4;cursor:not-allowed}.header-user{display:flex;align-items:center;gap:10px;margin-left:8px;padding-left:16px;border-left:1px solid var(--border)}.header-username{font-family:JetBrains Mono,monospace;font-size:13px;color:var(--text-secondary)}.btn-logout{padding:6px 14px;border:1px solid var(--border);border-radius:var(--radius-sm);background:transparent;color:var(--text-secondary);font-family:Inter,sans-serif;font-size:12px;font-weight:500;cursor:pointer;transition:all var(--transition)}.btn-logout:hover{border-color:var(--danger);color:var(--danger);background:var(--danger-light)}.rating-buttons{display:inline-flex;gap:2px;margin-left:auto}.btn-rate{display:inline-flex;align-items:center;justify-content:center;width:28px;height:28px;padding:0!important;min-height:auto!important;border:1px solid transparent;border-radius:var(--radius-sm);background:transparent!important;color:var(--text-muted)!important;cursor:pointer;transition:all var(--transition)}.btn-rate:hover{color:var(--accent)!important;background:var(--accent-light)!important;border-color:var(--accent);box-shadow:none!important}.btn-rate.active{color:var(--accent)!important;background:var(--accent-light)!important;border-color:var(--accent)}.btn-rate-down:hover,.btn-rate-down.active{color:var(--danger)!important;background:var(--danger-light)!important;border-color:var(--danger)}.share-wrapper{position:relative;display:flex;align-items:center}.btn-share{display:flex;align-items:center;justify-content:center;width:36px;height:36px;padding:0;border:1px solid var(--border);border-radius:var(--radius-sm);background:transparent;color:var(--text-secondary);cursor:pointer;transition:all var(--transition)}.btn-share:hover{border-color:var(--accent);color:var(--accent);background:var(--accent-light)}.share-panel{position:absolute;top:calc(100% + 6px);right:0;display:flex;align-items:center;gap:4px;padding:6px;background:var(--bg-primary);border:1px solid var(--border);border-radius:var(--radius-sm);box-shadow:0 4px 12px #00000026;animation:share-panel-in .15s ease-out;z-index:100}.share-panel input{width:280px;padding:5px 8px;font-size:12px;font-family:JetBrains Mono,monospace;border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--bg-secondary);color:var(--text-primary);outline:none}.share-panel input:focus{border-color:var(--accent)}.share-panel button{display:flex;align-items:center;justify-content:center;width:28px;height:28px;padding:0;border:1px solid var(--border);border-radius:var(--radius-sm);background:transparent;color:var(--text-secondary);cursor:pointer;transition:all var(--transition);flex-shrink:0}.share-panel button:hover{border-color:var(--accent);color:var(--accent);background:var(--accent-light)}@keyframes share-panel-in{0%{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:translateY(0)}}.shared-session-info{display:flex;align-items:center;gap:10px;font-size:13px}.shared-badge{padding:3px 10px;border-radius:100px;background:var(--accent-light);color:var(--accent);font-weight:600;font-size:12px}.shared-branch{font-family:JetBrains Mono,monospace;color:var(--text-secondary)}.shared-date{color:var(--text-muted)}.btn-attach{padding:0;width:44px;min-width:44px;min-height:44px;border:1px solid var(--border);border-radius:var(--radius-md);background:var(--bg-page)!important;color:var(--text-secondary)!important;font-size:18px;cursor:pointer;transition:all 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