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var(--border);display:flex;flex-direction:column;height:100%;overflow:visible;box-shadow:1px 0 6px #0f172a0f;transition:width .3s cubic-bezier(.4,0,.2,1);position:relative;overscroll-behavior:contain}.conversation-history.collapsed{width:60px}.history-header{padding:16px;border-bottom:1px solid var(--border);display:flex;justify-content:space-between;align-items:center;flex-shrink:0;background:var(--bg-elevated)}.conversation-history.collapsed .history-header{justify-content:center}.history-actions{display:flex;gap:6px;align-items:center;margin-left:auto}.conversation-history.collapsed .history-actions{justify-content:center;width:100%}.history-header h2{margin:0;font-size:16px;font-weight:600;color:var(--text-1);white-space:nowrap;opacity:1;transition:opacity .2s ease}.collapsed .history-header h2{opacity:0;pointer-events:none}.new-chat-btn-small{background:var(--bg-subtle);border:1px solid var(--border);font-size:16px;cursor:pointer;width:30px;height:30px;padding:0;border-radius:var(--radius-sm);transition:all .15s cubic-bezier(.2,0,.13,1);display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow-xs)}.new-chat-btn-small:hover{background:var(--brand-50);color:var(--brand-600);transform:translateY(-1px);box-shadow:var(--shadow-sm)}.history-loading,.history-empty{padding:32px 20px;text-align:center;color:var(--text-3);font-size:13px}.conversations-list{flex:1;overflow-y:auto;overflow-x:visible;overscroll-behavior:contain;padding:8px;display:flex;flex-direction:column;gap:4px;position:relative}.conversation-history.collapsed .conversations-list{padding:8px 6px;align-items:center}.conversation-item{padding:12px;border-radius:var(--radius-sm);border:1px solid transparent;transition:all .15s cubic-bezier(.2,0,.13,1);cursor:pointer;background:var(--bg-elevated);flex-shrink:0;display:flex;justify-content:space-between;align-items:flex-start;position:relative;overflow:visible;box-shadow:var(--shadow-xs)}.conversation-item:hover{background:var(--bg-subtle);border-color:var(--border)}.conversation-item.active{background:linear-gradient(135deg,var(--brand-600) 0%,var(--brand-500) 100%);color:#fff;border-color:var(--brand-600);box-shadow:0 8px 20px #24528a40}.pin-indicator{margin-right:8px;font-size:14px}.conversation-content{display:flex;flex-direction:column;gap:4px;flex:1;min-width:0;transition:opacity .2s ease}.conversation-title{font-weight:600;font-size:13px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;color:inherit}.conversation-item.active .conversation-title{color:#fff}.conversation-preview{font-size:12px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;color:var(--text-3);line-height:1.3}.conversation-item.active .conversation-preview{color:#ffffffe6}.conversation-date{font-size:11px;color:var(--text-3);text-align:right;margin-top:2px}.conversation-item.active .conversation-date{color:#fffc}.conversation-menu-btn{position:relative;background:none;border:none;font-size:16px;cursor:pointer;padding:4px 8px;border-radius:4px;opacity:0;transition:opacity .15s cubic-bezier(.2,0,.13,1);flex-shrink:0;margin-left:4px;box-shadow:none}.conversation-item:hover .conversation-menu-btn{opacity:1}.conversation-menu-btn:hover{background:#0f172a14}.conversation-item.active .conversation-menu-btn:hover{background:#fff3}.conversation-menu{position:absolute;right:10px;top:35px;background:var(--bg-elevated);border:1px solid var(--border);border-radius:var(--radius-md);box-shadow:var(--shadow-md);z-index:10000;min-width:150px;overflow:hidden}.menu-item{display:block;width:100%;padding:10px 12px;border:none;background:none;text-align:left;cursor:pointer;font-size:13px;transition:all .15s cubic-bezier(.2,0,.13,1);color:var(--text-1);font-weight:500;box-shadow:none}.menu-item:hover{background:var(--bg-subtle);color:var(--brand-600)}.menu-item.rename{color:var(--brand-600)}.menu-item.rename:hover{background:var(--brand-50)}.menu-item.pin{color:var(--warning-600)}.menu-item.pin:hover{background:#fff3d6}.menu-item.pin.pinned{color:var(--success-600)}.menu-item.pin.pinned:hover{background:#e4faf2}.menu-item.delete{color:var(--danger-600)}.menu-item.delete:hover{background:#ffeceb}.rename-input-wrapper{display:flex;gap:6px;padding:8px;background:var(--bg-subtle);border-radius:var(--radius-sm);border:1px solid var(--border);margin-bottom:4px}.rename-input{flex:1;padding:6px 10px;border:1px solid var(--border-strong);border-radius:var(--radius-sm);font-size:13px;font-family:inherit;background-color:var(--bg-elevated);color:var(--text-1);transition:all .15s cubic-bezier(.2,0,.13,1)}.rename-input:focus{outline:none;border-color:var(--brand-500);box-shadow:0 0 0 4px #2f63a61f}.rename-save-btn,.rename-cancel-btn{padding:6px 10px;border:none;border-radius:var(--radius-sm);font-size:12px;cursor:pointer;transition:all .15s cubic-bezier(.2,0,.13,1);background:var(--bg-elevated);border:1px solid var(--border);color:var(--text-1);font-weight:600}.rename-save-btn:hover{background:var(--success-600);color:#fff;border-color:var(--success-600)}.rename-cancel-btn:hover{background:var(--danger-600);color:#fff;border-color:var(--danger-600)}.conversations-list::-webkit-scrollbar-thumb:hover{background:var(--border-strong)}.sidebar-toggle-btn{background:var(--bg-elevated);border:1px solid var(--border);font-size:18px;cursor:pointer;width:30px;height:30px;padding:0;border-radius:var(--radius-sm);transition:all .2s ease;color:var(--text-2);display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow-xs)}.sidebar-toggle-btn:hover{background:var(--brand-50);color:var(--brand-600);box-shadow:var(--shadow-sm)}.collapsed .new-chat-btn-small,.collapsed .conversation-menu-btn{display:none}.collapsed .conversation-item{justify-content:center;padding:10px}.collapsed .pin-indicator,.collapsed .conversation-content{display:none}@media(max-width:900px){.conversation-history{width:240px}.conversation-item{padding:10px}.conversation-title{font-size:12px}.conversation-preview{font-size:11px}}@media(max-width:768px){.conversation-history{width:220px}}@media(max-width:640px){.conversation-history{position:fixed!important;top:0;left:0;height:100dvh!important;width:280px!important;z-index:500;box-shadow:4px 0 24px #0f172a47!important;transition:transform .3s cubic-bezier(.4,0,.2,1)!important;transform:translate(0)}.conversation-history.collapsed{transform:translate(-100%)!important;width:280px!important;pointer-events:none}.history-header{padding:14px}.conversation-item{padding:10px}}.conversation-avatar{width:34px;height:34px;border-radius:12px;background:var(--bg-subtle);border:1px solid var(--border);color:var(--text-2);font-weight:700;font-size:13px;display:flex;align-items:center;justify-content:center;margin:2px 0;box-shadow:var(--shadow-xs)}.conversation-item.active .conversation-avatar{background:#fff3;border-color:#fff6;color:#fff}@media(min-width:901px){.sidebar-toggle-btn{display:none!important}}.simple-json-wrapper{background:var(--bg-elevated, #ffffff);border:1px solid var(--border, #e2e8f0);border-radius:var(--radius-md, 8px);padding:16px 20px;margin:16px 0;font-family:var(--font-sans, system-ui, -apple-system, sans-serif);color:var(--text-1, #1e293b);box-shadow:var(--shadow-sm, 0 1px 2px rgba(0, 0, 0, .05));overflow:hidden}.simple-json-header{display:flex;align-items:center;justify-content:space-between;padding-bottom:12px;margin-bottom:16px;border-bottom:1px solid var(--border, #e2e8f0)}.simple-json-header h3{margin:0;font-size:18px;font-weight:600;color:var(--text-1, #0f172a)}.simple-json-copy-btn{padding:6px 14px;background:var(--brand-600, #2563eb);color:#fff;border:none;border-radius:6px;cursor:pointer;font-size:13px;font-weight:500;transition:opacity .2s ease,transform .1s ease;box-shadow:var(--shadow-xs, 0 1px 2px rgba(0,0,0,.05))}.simple-json-copy-btn:hover{opacity:.9;transform:translateY(-1px)}.simple-json-content{font-size:15px;line-height:1.6;color:var(--text-1, #334155)}.simple-json-list{margin:6px 0 6px 24px;padding:0;list-style-type:disc}.simple-json-list .simple-json-list{list-style-type:circle}.simple-json-list .simple-json-list .simple-json-list{list-style-type:square}.simple-json-list-item{margin-bottom:8px;word-break:break-word}.simple-json-list-item strong{font-weight:600;color:var(--text-0, #0f172a)}