*{margin:0;padding:0;box-sizing:border-box}:root{--bg-primary: #0f0f1a;--bg-secondary: #1a1a2e;--bg-card: #16213e;--text-primary: #eaeaea;--text-secondary: #aaa;--accent: #4361ee;--accent-hover: #3a56d4;--danger: #e63946;--success: #4caf50;--warning: #ff9800;--credit-color: #4caf50;--debit-color: #e63946;--border: #2a2a4a;--radius: 12px;--radius-sm: 8px}html{font-size:16px}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,system-ui,sans-serif;background:var(--bg-primary);color:var(--text-primary);min-height:100vh;-webkit-tap-highlight-color:transparent}.app{max-width:500px;margin:0 auto;padding:12px 12px 40px}.header{text-align:center;padding:12px 0}.header h1{font-size:1.3rem;font-weight:700;background:linear-gradient(135deg,#4361ee,#7209b7);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.summary-cards{display:grid;grid-template-columns:1fr 1fr 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