*,*:before,*:after{box-sizing:border-box}*{margin:0}body{font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;line-height:1.5;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}img,picture,video,canvas,svg{display:block;max-width:100%}input,button,textarea,select{font:inherit}p,h1,h2,h3,h4,h5,h6{overflow-wrap:break-word}#root{isolation:isolate}.tree-view{--tv-bg: #ffffff;--tv-border-color: #e5e7eb;--tv-text-color: #1f2937;--tv-text-muted: #6b7280;--tv-hover-bg: rgba(243, 244, 246, .5);--tv-focus-ring: #d1d5db;--tv-padding-x: 1.25rem;--tv-padding-y: 1rem;--tv-gap: 6px;--tv-indent: 2rem;--tv-title-size: 1.25rem;--tv-title-weight: 600;--tv-radius: .5rem;--tv-row-radius: .25rem;--tv-shadow: 0 1px 3px 0 rgba(0, 0, 0, .1), 0 1px 2px -1px rgba(0, 0, 0, .1);--tv-transition-duration: .2s;--tv-chevron-size: .75rem;--tv-chevron-color: #6b7280}.tree-view{background-color:var(--tv-bg);border:1px solid 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#f9fafb;--tv-text-muted: #9ca3af;--tv-hover-bg: rgba(55, 65, 81, .5);--tv-focus-ring: #4b5563;--tv-chevron-color: #9ca3af;--tv-shadow: 0 1px 3px 0 rgba(0, 0, 0, .3), 0 1px 2px -1px rgba(0, 0, 0, .3)}.demo-page{min-height:100vh;background:linear-gradient(135deg,#f8fafc,#e2e8f0);padding:2rem 1rem}@media (min-width: 768px){.demo-page{padding:4rem 2rem}}.demo-container{max-width:48rem;margin:0 auto}.demo-header{text-align:center;margin-bottom:3rem}.demo-title{font-size:2.5rem;font-weight:700;color:#0f172a;letter-spacing:-.025em;margin:0 0 .5rem}.demo-subtitle{font-size:1.125rem;color:#64748b;margin:0}.demo-section{margin-bottom:3rem}.demo-section-title{font-size:1.5rem;font-weight:600;color:#1e293b;margin:0 0 1rem;letter-spacing:-.025em}.demo-description{color:#475569;margin:0 0 1rem;line-height:1.6}.demo-example{margin-bottom:1.5rem}.demo-toggle-btn{padding:.5rem 1rem;border:1px solid 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