:root{--focus-ring-width:2px;--focus-ring-offset:2px;--focus-ring-style:solid;--hc-border-width:2px;--hc-text-weight:600;--hc-icon-weight:700;--sr-only-font-size:1px;--sr-only-line-height:1px;--motion-reduction-factor:.5}@media (prefers-contrast:high){:root{--border-width:var(--hc-border-width);--font-weight-normal:var(--hc-text-weight);--font-weight-medium:var(--hc-text-weight);--font-weight-semibold:var(--hc-text-weight);--font-weight-bold:var(--hc-text-weight)}}#message:focus{outline:var(--focus-ring-width) var(--focus-ring-style) var(--focus-ring-color)!important;outline-offset:var(--focus-ring-offset)!important}.skip-links{z-index:9999;flex-direction:column;gap:0;display:flex;position:absolute;top:0;left:0}.skip-link{background:var(--page-bg);color:var(--text-primary);border:2px solid var(--button-primary-bg);border-radius:var(--radius-md,.375rem);font-weight:var(--font-semibold,600);z-index:10000;white-space:nowrap;padding:8px 12px;text-decoration:none;transition:top .2s ease-out;position:absolute;top:-100px;left:6px}.skip-link:first-child:focus{top:6px}.skip-link:nth-child(2):focus{top:46px}.skip-link:nth-child(3):focus{top:86px}.skip-link:focus{box-shadow:0 0 0 3px var(--shadow-legacy-1)!important;outline:none!important}[dir=rtl] .skip-links{left:auto;right:0}[dir=rtl] .skip-link{left:auto;right:6px}@media print{.skip-link,.sidebar{display:none}}#chat,#chat *{touch-action:manipulation}#chat .scrollable{touch-action:pan-y}#chat input[type=text],#chat input[type=search],#chat input[type=email],#chat input[type=url],#chat input[type=number],#chat input[type=password],#chat textarea,#chat select{touch-action:manipulation;font-size:16px}#chat button,#chat [role=button],#chat .btn,#chat [onclick],#chat a,#chat .clickable{touch-action:manipulation}#chat{gap:var(--space-lg);flex-direction:column;width:100%;display:flex;overflow-anchor:auto!important}#chat.lazy-loading .message-container:last-child{overflow-anchor:none}#chat.loading-history{visibility:hidden}.msg p,.msg div:not(.katex):not(.katex-html):not(.google-search-suggestions-container){word-break:normal;-webkit-hyphens:auto;hyphens:auto;max-width:100%}#message{order:4}:root textarea#message::placeholder{color:var(--text-legacy-777777)}.dark textarea#message::placeholder{color:var(--text-placeholder)}@media (hover:hover) and (pointer:fine){button#send-btn:hover{background:var(--button-primary-hover-bg);transform:scale(1.05)}}@media (width<=768px){textarea#message{border-radius:var(--border-radius-large);border:1px solid var(--border-default);min-height:120px;padding:.8rem 1.2rem;font-size:.9rem}button#send-btn,button#stop-generation-btn{width:var(--touch-target-min);height:var(--touch-target-min);min-width:var(--touch-target-min);min-height:var(--touch-target-min);border-radius:var(--border-radius-large);margin-inline-start:0;flex-shrink:0;margin-top:0;font-size:1.4rem}.file-preview-body{grid-template-columns:1fr;gap:1rem}}@media (width<=550px){textarea#message{border-radius:var(--border-radius-large);border:1px solid var(--border-default);flex:auto;width:100%;min-width:0;min-height:140px;margin-top:0;font-size:.9rem}}@media (width<=480px){textarea#message{min-height:120px;padding:.75rem 1rem;font-size:.85rem}button#send-btn,button#stop-generation-btn{width:44px;min-width:44px;height:44px;min-height:44px;font-size:1.3rem}#send-btn{width:48px;height:48px}}body.modal-open{overflow:hidden}#message{background:var(--input-field-bg);border:1px solid var(--border-subtle);width:100%;min-height:44px;max-height:160px;font-size:var(--text-base);color:var(--text-primary);resize:none;font-family:var(--font-primary);transition:border-color var(--duration-short-3) var(--easing-standard);border-radius:12px;outline:none;margin-bottom:12px;padding:12px 16px}#message:focus{border-color:var(--border-focus)}#message::placeholder{color:var(--text-placeholder)}#send-btn{background:var(--button-primary-bg);width:44px;min-width:44px;height:44px;min-height:44px;color:var(--button-primary-text);cursor:pointer;box-shadow:var(--elevation-1);transition:all var(--duration-short-3) var(--easing-standard);border:none;border-radius:12px;justify-content:center;align-items:center;padding:0;font-size:18px;display:flex}#send-btn:hover{background:var(--button-primary-hover-bg);box-shadow:var(--elevation-2);transform:translateY(-1px)}#send-btn:active{box-shadow:var(--elevation-1);transform:scale(.95)translateY(0)}#send-btn:focus-visible{outline:2px solid var(--border-focus);outline-offset:2px}#send-btn:disabled{opacity:.5;cursor:not-allowed;transform:none}#video-gen-modal .themed-input-common:focus,#video-gen-modal .themed-select-common:focus{outline:2px solid var(--accent-primary,var(--border-legacy-4285f4));outline-offset:2px}#video-gen-modal input[type=number].themed-input-common[readonly]{background:var(--surface-variant);color:var(--text-secondary);cursor:default}.file-preview-body{flex:1;grid-template-columns:1fr 250px;gap:1rem;padding:1rem;display:grid;overflow-y:auto}.sync-ui-body{padding:15px}