*{margin:0;padding:0;box-sizing:border-box}:root{--bg-primary: #0a0e1a;--bg-secondary: #111827;--bg-tertiary: #1a1f35;--bg-card: #151b2e;--border-color: #1f2937;--text-primary: #e5e7eb;--text-secondary: #9ca3af;--accent-blue: #3b82f6;--accent-purple: #8b5cf6;--accent-green: #10b981;--accent-red: #ef4444;--accent-orange: #f59e0b}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,sans-serif;background:var(--bg-primary);color:var(--text-primary);line-height:1.6}.layout{min-height:100vh;display:flex}.sidebar{width:260px;background:var(--bg-secondary);border-right:1px solid var(--border-color);padding:1.5rem;position:fixed;height:100vh;overflow-y:auto}.sidebar-brand{font-size:1.5rem;font-weight:700;margin-bottom:2rem;background:linear-gradient(135deg,var(--accent-blue),var(--accent-purple));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.sidebar-nav{display:flex;flex-direction:column;gap:.5rem}.sidebar-nav 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