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26px;display:grid;grid-template-rows:auto minmax(0,1fr);gap:20px}.settings-surface-header{display:flex;align-items:flex-start;justify-content:space-between;gap:16px}#settings-back-btn{white-space:nowrap;min-width:122px;padding:0 14px}.settings-surface-header h2{margin:0;letter-spacing:-.04em}.settings-surface-grid{min-height:0;overflow:auto;padding-right:4px;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;align-content:start}.settings-card{border:1px solid var(--line);border-radius:22px;background:var(--panel-secondary);padding:20px;display:grid;gap:14px}.settings-card-footer{display:flex;align-items:center;justify-content:space-between;gap:14px}.settings-theme-picker{width:100%;justify-content:space-between}.preference-row{border:1px solid var(--line);border-radius:18px;background:var(--panel-secondary-strong);padding:16px;display:flex;align-items:center;justify-content:space-between;gap:16px}.preference-row strong{display:block;margin-bottom:6px}.settings-action-stack{display:grid;gap:10px}.field-with-icon .input-with-icon{position:relative}.field-with-icon .field-icon{position:absolute;left:14px;top:50%;width:18px;height:18px;color:color-mix(in srgb,var(--muted) 82%,var(--text) 18%);transform:translateY(-50%);pointer-events:none;transition:color var(--transition-fast)}.field-with-icon .field-icon svg{width:18px;height:18px;display:block}.field-with-icon .input-with-icon:focus-within .field-icon{color:var(--green-strong)}.field-with-icon .input-with-icon input{padding-left:42px}.auth-submit{gap:10px}.auth-submit .button-icon{width:16px;height:16px;display:inline-flex;align-items:center;justify-content:center}.auth-submit .button-icon svg{width:16px;height:16px;display:block}.auth-divider{display:flex;align-items:center;gap:12px;margin:4px 0 2px}.auth-divider:before,.auth-divider:after{content:"";flex:1 1 auto;border-top:1px solid var(--line-strong)}.auth-divider span{padding:0;font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);line-height:1}.oauth-google-button{font-weight:600}.password-hint{margin:-4px 0 2px;font-size:.8rem;color:color-mix(in srgb,var(--muted) 70%,var(--text));line-height:1.5}.auth-footer .muted-copy{color:color-mix(in srgb,var(--muted) 65%,var(--text))}.admin-surface{height:100%;min-height:0;padding:24px 26px;display:grid;grid-template-rows:auto auto minmax(0,1fr);gap:18px}.admin-surface-header{display:flex;align-items:flex-start;justify-content:space-between;gap:16px}.admin-surface-header h2{margin:0;letter-spacing:-.04em}.admin-surface-actions{display:flex;align-items:center;justify-content:flex-end;gap:12px;flex-wrap:wrap}.admin-inline-nav{display:flex;gap:10px;flex-wrap:wrap}.admin-tab-button,.admin-nav-button{min-height:42px;border-radius:14px;border:1px solid var(--line);background:var(--panel-secondary);color:var(--text);padding:0 14px;transition:border-color var(--transition-fast),background var(--transition-mid),box-shadow var(--transition-fast)}.admin-nav-button{width:100%;text-align:left}.admin-tab-button.is-active,.admin-nav-button.is-active,.admin-nav-button:hover,.admin-tab-button:hover{border-color:var(--line-strong);background:var(--panel-secondary-strong);box-shadow:0 14px 30px color-mix(in srgb,var(--green) 10%,transparent)}.admin-surface-scroll{min-height:0;overflow:auto;padding-right:4px;display:grid;align-content:start;gap:16px}.messages-panel,.composer-panel{min-width:0;padding:20px 22px}.messages-panel{min-width:0;min-height:0;display:grid;grid-template-rows:auto minmax(0,1fr);gap:14px}.welcome-panel{display:grid;gap:14px;padding:6px 6px 0}.welcome-panel.hidden{display:none}.messages-wrap{position:relative;min-width:0;min-height:0;overflow:hidden}.messages{min-width:0;min-height:0;height:100%;overflow:auto;overflow-x:hidden;padding:4px 2px 74px;display:flex;flex-direction:column;align-items:stretch;gap:16px}.jump-latest-btn{position:absolute;right:10px;bottom:10px;min-height:42px;padding:0 16px;border-radius:999px;background:var(--scroll-cue-bg);box-shadow:var(--shadow)}.message{min-width:0;border:1px solid var(--line);border-radius:20px;background:var(--panel-secondary);padding:16px 18px;display:grid;gap:10px;width:min(100%,var(--message-max-width));max-width:100%;transition:border-color var(--transition-fast),background var(--transition-mid)}.message.is-streaming{border-color:color-mix(in srgb,var(--line-strong) 88%,transparent);box-shadow:0 0 0 1px color-mix(in srgb,var(--green) 10%,transparent)}.message.user{align-self:flex-end;background:var(--panel-secondary-strong)}.message.assistant{align-self:flex-start}.message.user,.message.assistant,.message.error{width:50%;max-width:50%}.message.system{align-self:center;background:color-mix(in srgb,var(--cyan) 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.message-version-nav:disabled{opacity:.5;cursor:not-allowed}.message-version-indicator{min-height:30px;padding:0 10px;border-radius:999px;border:1px solid color-mix(in srgb,var(--line) 82%,transparent);background:color-mix(in srgb,var(--theme-control-bg) 88%,transparent);color:color-mix(in srgb,var(--text) 78%,var(--muted));font-size:.72rem;letter-spacing:.05em;display:inline-flex;align-items:center;justify-content:center}.message-actions .message-action-regenerate{border-color:color-mix(in srgb,var(--cyan) 32%,var(--line));color:color-mix(in srgb,var(--cyan) 78%,white 12%)}.message-actions .message-action-regenerate:hover{border-color:color-mix(in srgb,var(--cyan) 62%,var(--line));color:color-mix(in srgb,var(--cyan) 88%,white 8%);background:color-mix(in srgb,var(--cyan) 12%,transparent)}.message-body{position:relative;min-width:0;max-width:100%;color:var(--text);line-height:1.78;word-break:break-word;overflow-wrap:anywhere}.message-body-inner{position:relative;min-width:0;min-height:1.5rem}.stream-placeholder{display:inline-flex;align-items:center;gap:10px;min-height:1.2rem;color:var(--muted);font-style:italic}.stream-placeholder:before{content:"";width:.72rem;height:.72rem;border-radius:999px;background:color-mix(in srgb,var(--green) 72%,white 18%);box-shadow:0 0 0 5px color-mix(in srgb,var(--green) 10%,transparent)}.thinking-block{border:1px solid var(--line-soft);border-radius:18px;background:color-mix(in srgb,var(--panel-secondary-strong) 88%,transparent);overflow:hidden}.thinking-toggle{width:100%;min-height:44px;padding:0 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16%);box-shadow:0 0 color-mix(in srgb,var(--green) 22%,transparent);animation:searchPulse 1.35s ease-out infinite}@keyframes searchPulse{0%{transform:scale(.9);box-shadow:0 0 color-mix(in srgb,var(--green) 28%,transparent)}70%{transform:scale(1);box-shadow:0 0 0 10px color-mix(in srgb,var(--green) 0%,transparent)}to{transform:scale(.9);box-shadow:0 0 color-mix(in srgb,var(--green) 0%,transparent)}}.search-panel{display:grid;gap:8px}.search-sources-list{margin:0;padding-left:1.1rem;display:grid;gap:7px}.search-sources-item{color:var(--muted)}.search-source-link{color:var(--text);font-weight:600;text-decoration:underline;text-decoration-color:color-mix(in srgb,var(--link) 44%,transparent)}.search-source-link:hover{color:var(--link-hover);text-decoration-color:currentColor}.search-source-host{margin-left:8px;font-size:.76rem;letter-spacing:.05em;color:var(--muted)}.message-attachments{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:12px}.message-media-strip{display:grid;grid-template-columns:1fr;gap:14px;margin-bottom:12px;width:min(100%,1040px)}.message-media-card{min-width:0;width:100%;border-radius:24px;border:1px solid var(--line-soft);background:color-mix(in srgb,var(--panel-secondary-strong) 86%,transparent);overflow:hidden}.message-media-card.is-generated{width:min(100%,460px)}.message-media-link{display:block;border-radius:inherit;overflow:hidden;background:color-mix(in srgb,black 4%,transparent)}.message-media-image{display:block;width:100%;height:auto;max-height:min(68vh,640px);object-fit:contain;background:color-mix(in srgb,var(--theme-control-bg) 92%,transparent)}.message-media-link.is-generated{background:color-mix(in srgb,var(--theme-control-bg) 95%,transparent)}.message-media-image.is-generated{width:100%;height:auto;max-height:min(72vh,760px);object-fit:contain;object-position:50% 50%}.message-media-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 14px 14px}.message-media-copy{min-width:0;display:grid;gap:3px}.message-media-copy strong,.message-media-copy span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.message-media-copy strong{color:var(--text);font-size:.92rem}.message-media-copy span{color:var(--muted);font-size:.76rem;text-transform:uppercase;letter-spacing:.08em}.message-media-actions{display:inline-flex;align-items:center;gap:8px}.message-media-action{min-height:30px;padding:0 12px;border-radius:999px;border:1px solid var(--line);background:var(--theme-control-bg);color:var(--text);text-decoration:none;font-size:.82rem}.message-attachment-chip{display:inline-flex;align-items:center;gap:8px;max-width:min(100%,360px);padding:8px 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var(--transition-fast)}.message-body a:hover{color:var(--link-hover);text-decoration-color:currentColor}.message-body blockquote{padding:.9rem 1rem;border-left:3px solid var(--blockquote-border);border-radius:0 16px 16px 0;background:var(--blockquote-bg);color:var(--muted)}.message-body code{font-family:IBM Plex Mono,monospace;font-size:.92em;padding:.18rem .4rem;border-radius:8px;background:var(--code-bg);border:1px solid var(--code-border)}.message-body pre{width:100%;max-width:100%;box-sizing:border-box;overflow-x:auto;overflow-y:auto;padding:1rem;border-radius:16px;background:var(--code-bg);border:1px solid var(--code-border);max-height:min(56vh,460px);overscroll-behavior:contain}.message-body pre code{display:block;width:max-content;min-width:100%;max-width:none;padding:0;border:0;background:transparent;white-space:pre;word-break:normal;overflow-wrap:normal}.message-body .markdown-code-wrap{position:relative;min-width:0;max-width:100%;margin:0 0 1rem}.message-body .markdown-code-wrap pre{margin:0;padding-top:2.85rem}.markdown-code-copy-btn{position:absolute;top:.7rem;right:.7rem;min-height:30px;padding:0 10px;border-radius:999px;border:1px solid var(--line);background:var(--theme-control-bg);color:var(--muted);font-size:.74rem;letter-spacing:.04em;z-index:1;transition:border-color var(--transition-fast),color var(--transition-fast),background var(--transition-fast)}.markdown-code-copy-btn:hover{border-color:var(--line-strong);color:var(--text);background:var(--panel-secondary-strong)}.message-body hr{border:0;border-top:1px solid var(--line-soft)}.markdown-table-wrap{max-width:100%;overflow-x:auto;border:1px solid var(--line-soft);border-radius:16px;background:var(--table-row-bg)}.message-body table{width:100%;min-width:0;border-collapse:collapse;table-layout:fixed}.message-body thead th{background:var(--table-head-bg);color:var(--text);font-size:.78rem;letter-spacing:.08em;text-transform:uppercase}.message-body th,.message-body td{padding:.85rem .95rem;border-bottom:1px solid var(--line-soft);text-align:left;vertical-align:top;overflow-wrap:anywhere;word-break:break-word;white-space:normal}.message-body tbody tr:nth-child(2n){background:var(--table-row-alt-bg)}body[data-live-streaming=true] .messages .message,body[data-live-streaming=true] .messages .message *,body[data-live-streaming=true] .messages .message:before,body[data-live-streaming=true] .messages .message:after{animation:none!important;transition:none!important}body[data-live-streaming=true] .messages .message .searching-pulse{animation:searchPulse 1.35s ease-out infinite!important}.composer-panel{display:grid;gap:0}.composer-shell{display:grid;gap:12px;padding:12px;border-radius:28px;border:1px solid color-mix(in srgb,var(--line-strong) 72%,transparent);background:color-mix(in srgb,var(--theme-control-bg) 84%,var(--panel-secondary) 16%);box-shadow:inset 0 1px color-mix(in srgb,white 10%,transparent),0 16px 34px color-mix(in srgb,black 8%,transparent);overflow:visible}.composer-attachments{display:flex;flex-wrap:wrap;gap:8px}.composer-attachment-chip{display:inline-flex;align-items:center;gap:8px;max-width:min(100%,320px);min-height:34px;padding:0 10px 0 12px;border-radius:999px;border:1px solid color-mix(in srgb,var(--line) 90%,transparent);background:color-mix(in srgb,var(--panel-secondary-strong) 88%,var(--theme-control-bg) 12%);color:var(--text);font-size:.82rem}.composer-attachment-chip[data-status=uploading]{border-color:color-mix(in srgb,var(--cyan) 28%,transparent);color:var(--cyan)}.composer-attachment-chip[data-status=error]{border-color:color-mix(in srgb,var(--danger) 28%,transparent);color:var(--danger)}.composer-attachment-name{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.composer-attachment-state{font-size:.72rem;letter-spacing:.06em;text-transform:uppercase;color:var(--muted)}.composer-attachment-chip[data-status=uploading] .composer-attachment-state{color:var(--cyan)}.composer-attachment-chip[data-status=error] .composer-attachment-state{color:var(--danger)}.composer-attachment-remove{width:20px;height:20px;flex:0 0 auto;border:0;border-radius:999px;display:inline-flex;align-items:center;justify-content:center;padding:0;background:color-mix(in srgb,var(--panel-secondary) 74%,transparent);color:currentColor}.composer-row{display:flex;align-items:center;gap:10px;min-width:0}.composer-leading{display:flex;align-items:center;gap:8px;flex:0 0 auto}.composer-trailing{display:flex;align-items:center;gap:12px;flex:0 0 auto;position:relative}.composer-intent-toggle{display:inline-flex;align-items:center;gap:4px;padding:4px;border-radius:999px;border:1px solid color-mix(in srgb,var(--line) 85%,transparent);background:color-mix(in srgb,var(--panel-secondary) 90%,transparent)}.composer-intent-button{min-height:34px;padding:0 14px;border:0;border-radius:999px;background:transparent;color:var(--muted);font-size:.86rem;font-weight:600}.composer-intent-button.is-active{background:color-mix(in srgb,var(--green) 16%,var(--panel-secondary-strong) 84%);color:var(--text);box-shadow:inset 0 0 0 1px color-mix(in srgb,var(--green) 18%,transparent)}.composer-model-picker{position:relative;flex:0 0 auto;min-width:172px}.composer-model-picker:after{content:"";position:absolute;right:12px;top:50%;width:8px;height:8px;border-right:1.6px solid currentColor;border-bottom:1.6px solid currentColor;transform:translateY(-62%) rotate(45deg);color:var(--muted);pointer-events:none}.composer-model-select{min-height:32px;width:100%;padding:0 30px 0 12px;border-radius:999px;border:1px solid transparent;background:color-mix(in srgb,var(--panel-secondary-strong) 92%,transparent);color:var(--muted);font-size:.88rem;line-height:1;appearance:none;transition:border-color var(--transition-fast),background var(--transition-fast),color var(--transition-fast)}.composer-model-select:hover:not(:disabled),.composer-model-select:focus,.composer-model-select:focus-visible{border-color:color-mix(in srgb,var(--line-strong) 84%,transparent);background:color-mix(in srgb,var(--panel-secondary) 86%,var(--theme-control-bg) 14%);color:var(--text);outline:none}.composer-model-select:disabled{cursor:default;opacity:.65}.composer-status-badge{min-height:34px;padding:0 12px;border-radius:999px;border:1px solid var(--line);background:var(--panel-secondary-strong);color:var(--green-strong);font-size:.72rem;letter-spacing:.12em;text-transform:uppercase}.composer-status-badge[data-state=sending]{color:var(--cyan);border-color:color-mix(in srgb,var(--cyan) 26%,transparent);background:color-mix(in srgb,var(--cyan) 12%,transparent)}.composer-status-badge[data-state=error]{color:var(--danger);border-color:color-mix(in srgb,var(--danger) 26%,transparent);background:color-mix(in srgb,var(--danger) 10%,transparent)}.composer-status-badge[data-state=stopped],.composer-status-badge[data-state=reset]{color:var(--amber);border-color:color-mix(in srgb,var(--amber) 26%,transparent);background:color-mix(in srgb,var(--amber) 10%,transparent)}.composer-field textarea{min-height:32px;max-height:208px;resize:none;height:auto;width:100%;border:0;background:transparent;box-shadow:none;padding:4px;font-size:1rem;line-height:1.5;color:var(--text);caret-color:var(--green)}.composer-field{min-width:0;flex:1 1 auto}.composer-field textarea:focus{border-color:transparent;box-shadow:none}.composer-mode-picker{position:relative;flex:0 0 auto}.composer-mode-trigger{min-height:32px;padding:0 10px 0 12px;border-radius:999px;border:1px solid transparent;background:color-mix(in srgb,var(--panel-secondary-strong) 92%,transparent);color:var(--muted);display:inline-flex;align-items:center;gap:6px;font-size:.92rem;transition:border-color var(--transition-fast),background var(--transition-fast),color 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