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var(--color-border);border-radius:var(--radius-sm);outline:none;font-size:14px;font-weight:400}.settings-form textarea{resize:vertical;line-height:1.5}.settings-form input:focus,.settings-form textarea:focus{border-color:var(--color-accent);box-shadow:var(--focus-shadow)}.loading-rows div{height:64px;border-bottom:1px solid var(--color-divider);background:linear-gradient(90deg,var(--color-sidebar),var(--color-surface-subtle),var(--color-sidebar));background-size:220% 100%;animation:skeleton 1.3s infinite}@keyframes skeleton{to{background-position:-220% 0}}.setup-page{display:flex;min-height:100vh;align-items:center;justify-content:center;padding:24px;background:var(--color-background)}.setup-panel{width:min(380px,100%);padding:32px;background:var(--color-surface);border:1px solid var(--color-divider);border-radius:var(--radius-xl);box-shadow:var(--shadow-subtle)}.setup-panel h1{margin:12px 0 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var(--color-border);border-radius:var(--radius-sm)}.model-search:focus-within{border-color:var(--color-accent);box-shadow:var(--focus-shadow)}.model-search input{min-width:0;flex:1;color:var(--color-text);background:transparent;outline:none;font-size:13px}.toast-stack{position:fixed;top:16px;left:50%;z-index:70;display:grid;width:min(420px,calc(100vw - 32px));gap:8px;pointer-events:none;transform:translate(-50%)}.toast{display:flex;align-items:center;gap:10px;min-height:42px;padding:8px 10px 8px 13px;pointer-events:auto;background:var(--color-surface);border:1px solid 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iframe{min-height:58vh}.file-text-preview{max-height:58vh}.settings-defaults-grid{grid-template-columns:1fr}.setup-panel{padding:24px}.ui-gallery{padding:18px 12px 32px}.ui-gallery-header{align-items:stretch;flex-direction:column;gap:14px}.ui-gallery-header .button{align-self:flex-start}.ui-gallery-grid{grid-template-columns:1fr;gap:12px}.ui-gallery-section[data-ui-section=chat]{grid-column:auto}.ui-gallery-state-columns,.ui-gallery-shell-matrix,.ui-gallery-search-matrix,.ui-gallery-viewer-grid,.ui-gallery-management-columns{grid-template-columns:1fr}.ui-gallery-search-matrix{gap:10px}.ui-gallery-chat-surface{padding-inline:8px}.ui-sandbox-section{padding:12px}.ui-sandbox-heading,.ui-sandbox-route-heading{flex-direction:column;gap:10px}.ui-sandbox-heading .status-badge{align-self:flex-start}.ui-sandbox-shell{display:block;position:relative;min-height:680px}.ui-sandbox-nav{position:absolute;inset:0 auto 0 0;z-index:5;width:min(260px,84vw);transform:translate(-105%);transition:transform 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