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14px}.test-result{font-size:13px;border-radius:8px;padding:10px 14px;line-height:1.5}.test-result.success{background:#2bb16e1a;color:#1a8c53}.test-result.error{background:#e5393514;color:#c62828}.provider-modal-footer{display:flex;align-items:center;justify-content:space-between;padding:14px 20px;border-top:1px solid var(--border-color, #e8e8e8);gap:10px;flex-shrink:0}.dark .provider-modal-footer{border-color:var(--dark-border, #2a3a4a)}.footer-left,.footer-right{display:flex;gap:10px;align-items:center}.btn{border:none;border-radius:10px;padding:9px 18px;font-size:14px;font-weight:500;cursor:pointer;transition:background .15s,opacity .15s,transform .1s;font-family:inherit}.btn:disabled{opacity:.55;cursor:not-allowed}.btn:active:not(:disabled){transform:scale(.97)}.btn-primary{background:var(--accent-color, #2b5278);color:#fff}.btn-primary:hover:not(:disabled){background:var(--accent-hover, #1f3d5a)}.btn-secondary{background:var(--input-bg, #f0f2f5);color:var(--text-primary)}.btn-secondary:hover:not(:disabled){background:var(--hover-bg, #e8eaed)}.dark .btn-secondary{background:var(--dark-input, #17212b);color:#fff}.dark .btn-secondary:hover:not(:disabled){background:var(--dark-hover, #1c2a36)}.btn-danger{background:#e539351a;color:#e53935}.btn-danger:hover:not(:disabled){background:#e539352e}:root{--bg-primary: #ffffff;--bg-secondary: #f1f1f1;--bg-sidebar: #ffffff;--bg-chat: #e5ddd5;--bg-input: #ffffff;--bg-message-sent: #effdde;--bg-message-received: #ffffff;--bg-hover: #f1f3f4;--bg-active: #3390ec1a;--text-primary: #000000;--text-secondary: #707579;--text-sent-meta: #4fae4e;--text-received-meta: #a0acb6;--text-link: #3390ec;--text-placeholder: #aaa;--border-color: #e6ebf0;--divider: #dfe1e5;--accent-color: #3390ec;--accent-hover: #2b7cd4;--accent-active: #2270c0;--unread-badge: #3390ec;--online-color: #0ac630;--send-icon: #3390ec;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .1);--shadow-bubble: 0 1px 2px rgba(0, 0, 0, .15);--shadow-panel: 0 2px 8px rgba(0, 0, 0, .08);--sidebar-width: 380px;--topbar-height: 56px;--input-bar-height: 64px;--radius-bubble: 12px;--radius-bubble-tail: 4px;--radius-input: 24px;--font-main: -apple-system, BlinkMacSystemFont, "Roboto", "Helvetica Neue", sans-serif;--font-size-base: 14px;--font-size-sm: 12px;--font-size-xs: 11px;--transition: .2s cubic-bezier(.25, .46, .45, .94);--transition-fast: .15s ease}.dark{--bg-primary: #212121;--bg-secondary: #2b2b2b;--bg-sidebar: #212121;--bg-chat: #0e1621;--bg-input: #2b2b2b;--bg-message-sent: #2b5278;--bg-message-received: #182533;--bg-hover: #2b2b2b;--bg-active: #3390ec22;--text-primary: #ffffff;--text-secondary: #8d9199;--text-sent-meta: #7db7e8;--text-received-meta: #7a8b98;--text-link: #6cb3f7;--text-placeholder: #6b7280;--border-color: #2f3740;--divider: #2f3740;--accent-color: #3390ec;--accent-hover: #4fa0f7;--unread-badge: #3390ec;--send-icon: #3390ec;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .3);--shadow-bubble: 0 1px 2px rgba(0, 0, 0, .3);--shadow-panel: 0 2px 8px rgba(0, 0, 0, .3)}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html,body,#root{height:100%;width:100%;overflow:hidden}body{font-family:var(--font-main);font-size:var(--font-size-base);color:var(--text-primary);background:var(--bg-secondary);line-height:1.5;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}button{cursor:pointer;border:none;background:none;font-family:inherit;font-size:inherit;color:inherit;padding:0;display:flex;align-items:center;justify-content:center}button:disabled{cursor:default;opacity:.6}input,textarea{font-family:var(--font-main);font-size:var(--font-size-base);color:var(--text-primary);background:var(--bg-input);border:none;outline:none}input::placeholder,textarea::placeholder{color:var(--text-placeholder)}textarea{resize:none;overflow-y:auto}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:#0003;border-radius:3px}::-webkit-scrollbar-thumb:hover{background:#00000059}.dark ::-webkit-scrollbar-thumb{background:#ffffff26}.dark ::-webkit-scrollbar-thumb:hover{background:#ffffff40}.app{display:flex;height:100%;width:100%;overflow:hidden;background:var(--bg-secondary);transition:background var(--transition)}@keyframes ripple{0%{transform:scale(0);opacity:.3}to{transform:scale(4);opacity:0}}.loading-spinner{width:32px;height:32px;border:3px solid var(--border-color);border-top-color:var(--accent-color);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}