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0;border:none;border-radius:10px;flex-shrink:0;justify-content:center;align-items:center;display:flex}.qc-attach-btn:hover:not(:disabled){color:var(--primary);background:var(--surface-muted)}.qc-attach-btn:disabled{opacity:.4;cursor:not-allowed}.qc-input-wrapper{background:var(--surface);border:1.5px solid var(--line);box-shadow:var(--shadow-xs);transition:border-color var(--motion-fast), box-shadow var(--motion-fast);border-radius:18px;align-items:flex-end;gap:8px;padding:11px 14px;display:flex}.qc-input-wrapper:focus-within{border-color:var(--primary);box-shadow:0 0 0 3px #1f7a6d1f}.qc-input-wrapper textarea{resize:none;flex:1;width:auto;min-height:24px;max-height:160px;padding:4px 0;font-family:inherit;font-size:14px;line-height:1.5;box-shadow:none!important;background:0 0!important;border:none!important;outline:none!important}.qc-send-btn,.qc-stop-btn{cursor:pointer;border:none;border-radius:12px;flex-shrink:0;justify-content:center;align-items:center;width:36px;height:36px;transition:background .15s;display:flex}.qc-send-btn{background:var(--primary);color:#fff}.qc-send-btn:hover:not(:disabled){background:var(--primary-strong)}.qc-send-btn:disabled{background:var(--line-strong);cursor:not-allowed}.qc-stop-btn{background:var(--danger);color:#fff}.qc-stop-btn:hover{opacity:.85}@media (width<=768px){.quick-chat{flex-direction:column;height:auto;min-height:100dvh}.qc-sidebar{border-right:0;border-bottom:1px solid var(--line);width:100%;padding:14px 16px 12px}.qc-brand{margin-bottom:12px}.qc-project-select{margin-bottom:10px}.qc-sessions{margin-bottom:8px}.qc-session-list{max-height:76px}.qc-nav{flex-direction:row;align-items:center;gap:6px;padding-top:8px}.qc-nav-item,.qc-logout{text-align:center;flex:1;min-height:36px;margin:0;padding:8px}.qc-main{flex:1;min-height:60dvh}.qc-header{min-height:56px;padding:12px 16px}.qc-messages{gap:16px;padding:20px 14px}.qc-message{gap:8px;padding:0}.qc-avatar{width:34px;height:34px}.qc-md{padding:14px 16px}.qc-input-area{padding:12px 14px 16px}.qc-agent-shortcuts{grid-template-columns:minmax(0,1fr)}}