:root{color-scheme:dark;font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;line-height:1.5;--bg: #0a0a0a;--bg-card: rgba(255, 255, 255, .03);--bg-card-hover: rgba(255, 255, 255, .06);--bg-surface: rgba(255, 255, 255, .05);--border: rgba(255, 255, 255, .08);--border-hover: rgba(255, 255, 255, .15);--text: #fafafa;--text-muted: rgba(255, 255, 255, .55);--text-secondary: rgba(255, 255, 255, .7);--accent: #6366f1;--accent-hover: #818cf8;--danger: #ef4444;--danger-hover: #f87171;--radius: .75rem;--radius-sm: .5rem}*{box-sizing:border-box}html,body,#root{margin:0;min-height:100vh;background:var(--bg);color:var(--text)}.app{display:flex;flex-direction:column;min-height:100vh}.header{border-bottom:1px solid var(--border);background:#0a0a0af2;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);position:sticky;top:0;z-index:10}.header-content{max-width:1200px;margin:0 auto;padding:1.25rem 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