:root{--clubos-purple: #2D0A4A;--clubos-purple-light: #5A1F88;--clubos-orange: #F97316;--clubos-orange-dark: #EA580C;--bg: #f5f5f7;--card-bg: #ffffff;--text: #111827;--muted: #6B7280}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background:var(--bg);color:var(--text)}.app-shell{width:100%;max-width:100%;margin:0 auto;min-height:100vh;display:flex;flex-direction:column;background:var(--bg)}.app-header{position:sticky;top:0;z-index:50;background:var(--clubos-purple);color:#fff;padding:.75rem 1rem;display:flex;justify-content:space-between;align-items:center;box-shadow:0 2px 8px #0003}.app-header h1{margin:0;font-size:1.1rem;font-weight:700}.app-header 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