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var(--border);padding-left:14px;margin-left:2px}.chat-header-right{margin-left:auto;display:flex;align-items:center;gap:12px}.back-home-btn{display:flex;align-items:center;gap:6px;font-size:.78rem;font-weight:600;color:#4b5563;background:none;border:1px solid var(--border);border-radius:8px;padding:5px 12px;cursor:pointer;font-family:inherit;text-decoration:none;transition:color .15s,border-color .15s,background .15s}.back-home-btn:hover{color:#111827;border-color:var(--border-2);background:var(--surface-2)}.back-home-btn svg{flex-shrink:0}.chat-body{display:flex;flex:1;overflow:hidden}.sidebar{width:var(--sidebar-w);flex-shrink:0;display:flex;flex-direction:column;background:var(--bg-2);border-right:1px solid var(--border);overflow:hidden}.sidebar-new-chat{padding:10px 10px 6px;border-bottom:1px solid var(--border)}.sidebar-new-chat-btn{width:100%;display:flex;align-items:center;justify-content:center;gap:6px;background:none;border:1px solid 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