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14px;font-size:14px;font-weight:500;line-height:1}.sidebar-tool-item:disabled{cursor:not-allowed;opacity:.75}.sidebar-tool-item:hover:disabled{background:#2b303a;border-color:#ffffff38}.sidebar-tool-item.is-active{border-color:#60a5fa;box-shadow:0 0 0 1px #60a5fa66}.sidebar-content{flex-direction:column;flex:1;min-height:0;display:flex;overflow:hidden}.sidebar-footer{border-top:1px solid #ffffff0f;flex-shrink:0;margin-top:auto;padding-top:10px;overflow:visible}.model-selector-sidebar{gap:var(--space-2);flex-direction:column;display:flex}.model-selector-sidebar label{color:var(--text-tertiary);font-size:var(--text-sm);font-weight:var(--font-medium)}.molecule-drawer-section{gap:var(--space-2);flex-direction:column;display:flex}.conversation-history{flex-direction:column;flex:1;min-height:0;display:flex;overflow:hidden}.history-title{color:#98a2b3;font-size:11px;font-weight:var(--font-medium);text-transform:uppercase;letter-spacing:.05em;background:0 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var(--border-primary);width:100%;height:auto;max-height:200px;padding:var(--space-3) var(--space-4);gap:var(--space-3);flex-direction:row;overflow-x:auto}.sidebar-header{flex-shrink:0}.model-selector-sidebar{flex-shrink:0;min-width:150px}.conversation-history{flex:1;min-width:200px}.history-list{flex-direction:row;gap:2px;overflow:auto hidden}.sidebar-brand-text{display:none}}@media (width<=768px){.sidebar{z-index:1000;border-right:1px solid var(--border-primary);border-bottom:none;flex-direction:column;gap:12px;width:min(86vw,320px);max-width:320px;height:100%;max-height:none;padding:12px;position:fixed;top:0;bottom:0;left:0;overflow-x:hidden;transform:translate(0);box-shadow:6px 0 24px #00000059}.sidebar.collapsed{align-items:stretch;width:min(86vw,320px);max-width:320px;padding:12px;transform:translate(-100%)}.sidebar-header,.sidebar-actions,.sidebar-content,.sidebar-footer{width:100%}.sidebar-content{overflow:hidden}.sidebar-toggle,.new-chat-btn,.sidebar-search,.sidebar-tool-item{min-height:44px}}[data-theme=light] .sidebar{background:#f7f9fc;border-right:1px solid #e2e8f0}[data-theme=light] .new-chat-btn,[data-theme=light] .sidebar.collapsed .new-chat-btn,[data-theme=light] .sidebar-tools,[data-theme=light] .sidebar-tool-item,[data-theme=light] .sidebar-tools-toggle-icon{color:#1f2937;background:#fff;border-color:#dbe3ee}[data-theme=light] .new-chat-btn:hover,[data-theme=light] .sidebar-tools:hover,[data-theme=light] .sidebar-tool-item:hover:disabled{background:#f1f5f9;border-color:#cbd5e1}[data-theme=light] .new-chat-btn svg{color:#334155}[data-theme=light] .new-chat-btn:hover svg{color:#0f172a}[data-theme=light] .sidebar-search{background:#fff;border:1px solid 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var(--space-4);font-size:var(--text-sm);font-weight:var(--font-medium);border-radius:var(--radius-pill);cursor:pointer;transition:all var(--transition-normal);white-space:nowrap;border:none;font-family:inherit;text-decoration:none;display:inline-flex}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:var(--primary);color:var(--on-primary,#000)}.btn-primary:hover:not(:disabled){background:var(--primary-light)}.btn-primary:active:not(:disabled){transform:scale(.98)}.btn-secondary{background:var(--surface-hover);color:var(--text-primary);border:1px solid var(--border-primary)}.btn-secondary:hover:not(:disabled){background:var(--surface-active);border-color:var(--border-hover)}.btn-ghost{color:var(--text-secondary);background:0 0}.btn-ghost:hover:not(:disabled){background:var(--surface-hover);color:var(--text-primary)}.btn-icon{border-radius:var(--radius-full);width:36px;height:36px;color:var(--text-tertiary);cursor:pointer;transition:all 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svg{width:14px;height:14px}.style-3d-selector{gap:var(--space-1);display:flex}.style-3d-btn{border-radius:var(--radius-md);width:32px;height:32px;color:var(--text-tertiary);cursor:pointer;transition:all var(--transition-normal);background:0 0;border:1px solid #0000;justify-content:center;align-items:center;display:flex}.style-3d-btn:hover:not(.active){background:var(--surface-hover);color:var(--text-primary)}.style-3d-btn.active{background:var(--primary-surface);color:var(--primary);border-color:var(--primary)}@media (width<=768px){.add-btn,.send-btn{width:32px;min-width:32px;height:32px}.add-btn svg,.send-btn svg{width:16px;height:16px}.tools-btn{padding:var(--space-1) var(--space-2);font-size:var(--text-xs)}}@media (width<=520px){.add-btn,.send-btn{width:28px;min-width:28px;height:28px}.add-btn svg,.send-btn svg{width:14px;height:14px}}.input-wrapper,.welcome-input-wrapper{width:100%;max-width:800px;padding:var(--space-2) 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.left-buttons{align-items:center;gap:var(--space-1);display:flex}.input-actions .right-buttons{align-items:center;gap:var(--space-2);margin-left:auto;display:flex}.add-dropdown{margin-bottom:var(--space-2);position:absolute;bottom:100%;left:0}.add-option svg{width:16px;height:16px}.add-option[id*=molecule-draw]:hover:not(:disabled){background:var(--surface-hover);color:var(--success)}.tools-btn{position:relative}.tool-option[id*=admet]:hover:not(:disabled){background:var(--surface-hover);color:#c58af9}.tool-option:active:not(:disabled){transform:scale(.98)}.tool-option:focus-visible{outline:2px solid var(--border-focus);outline-offset:2px}.tool-option:disabled{color:var(--text-muted);cursor:not-allowed}[data-theme=light] .file-chip{color:#334155;background:#eef2ff;border-color:#c7d2fe}[data-theme=light] .file-chip-icon{color:#4f46e5}[data-theme=light] .file-chip .remove-chip{color:#64748b}[data-theme=light] .file-chip .remove-chip:hover{color:#334155}.tool-option-icon{width:20px;height:20px;transition:all var(--transition-fast);flex-shrink:0}.model-selector-input{align-items:center;display:flex;position:relative}.custom-select-input{width:180px;max-width:180px;position:relative}.select-trigger-input{color:var(--text-secondary);padding:var(--space-1) var(--space-2);border-radius:var(--radius-lg);font-size:var(--text-sm);cursor:pointer;transition:all var(--transition-normal);align-items:center;gap:var(--space-1);white-space:nowrap;background:0 0;border:1px solid #0000;justify-content:space-between;width:180px;max-width:180px;height:32px;display:flex}@media (width<=768px){.input-actions{min-height:44px}.add-btn,.send-btn{width:44px;min-width:44px;height:44px}.custom-select-input,.select-trigger-input{width:136px;max-width:136px}.select-trigger-input{height:36px;font-size:13px}}@media (width<=420px){.input-wrapper,.welcome-input-wrapper{padding:var(--space-2) 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