:root{--bg-main:#0f172a;--bg-card:#1e293bb3;--text-primary:#f8fafc;--text-secondary:#94a3b8;--border-color:#ffffff1a;--accent-color:#3b82f6;--color-kospi:#3b82f6;--color-kosdaq:#a855f7;--color-nasdaq:#22c55e;--color-sp500:#ef4444;--shadow-glow:0 0 15px #3b82f64d}body{background-color:var(--bg-main);color:var(--text-primary);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;min-height:100vh;margin:0;padding:0;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif}*{box-sizing:border-box}.glass{background:var(--bg-card);-webkit-backdrop-filter:blur(12px);border:1px solid var(--border-color);border-radius:16px}.app-container{max-width:1400px;margin:0 auto;padding:2rem}.app-header{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:1rem;margin-bottom:2.5rem;padding:1rem 2rem;display:flex}.app-header 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