:root{--bg-primary: #0f0f0f;--bg-secondary: #1a1a1a;--bg-tertiary: #252525;--text-primary: #ffffff;--text-secondary: #a0a0a0;--accent: #6366f1;--accent-hover: #818cf8;--success: #22c55e;--border: #333333;--radius: 12px}[data-theme=light]{--bg-primary: #f0f2f5;--bg-secondary: #ffffff;--bg-tertiary: #f1f5f9;--text-primary: #0f172a;--text-secondary: #475569;--border: #e2e8f0;--accent: #6366f1;--accent-hover: #4f46e5}*{margin:0;padding:0;box-sizing:border-box}body{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--bg-primary);color:var(--text-primary);min-height:100vh;line-height:1.6}.app{max-width:1200px;margin:0 auto;padding:2rem;min-height:100vh;display:flex;flex-direction:column}.header{text-align:center;margin-bottom:2rem}.logo-container{display:flex;align-items:center;justify-content:center;gap:1rem;margin-bottom:.5rem}.app-logo{width:48px;height:48px}.header 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