:root{--page-bg: #0b0b10;--pane-bg: #14141c;--pane-bg-elev: #1a1a25;--border: rgba(255, 255, 255, .08);--border-strong: rgba(255, 255, 255, .16);--text: #ececf2;--text-muted: rgba(236, 236, 242, .62);--text-faint: rgba(236, 236, 242, .42);--accent: #b054f7;--accent-strong: #c875ff;--green: #4ade80;--radius: 12px}*,*:before,*:after{box-sizing:border-box}html,body{margin:0;padding:0;background:var(--page-bg);color:var(--text);font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;font-size:14px;line-height:1.5;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}code{font-family:ui-monospace,SF Mono,Menlo,monospace;font-size:.875em;background:#ffffff12;padding:1px 6px;border-radius:4px;color:var(--text)}button{font:inherit;color:inherit;cursor:pointer}.page{min-height:100vh;display:grid;grid-template-columns:minmax(380px,1fr) minmax(520px,1.3fr);gap:0}.left-pane{padding:36px 28px 60px;border-right:1px solid 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var(--border)}.segmented-active{background:var(--pane-bg-elev);color:var(--text);font-weight:600}.segmented:hover:not(.segmented-active){color:var(--text)}.demo-chat-collapsible{flex:1;display:flex;min-width:0;min-height:0}.demo-chat-collapsible-closed iframe{visibility:hidden}.demo-chat-collapsible-tab{flex:0 0 44px;align-self:stretch;width:44px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;padding:18px 0;border:0;border-right:1px solid var(--border);background:linear-gradient(180deg,#ff1493,#c026d3);color:#fff;cursor:pointer;-webkit-user-select:none;user-select:none;transition:background .18s ease,box-shadow .18s ease,color .18s ease;position:relative;z-index:2}.demo-chat-collapsible-tab:hover{box-shadow:inset -4px 0 12px 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