#tip-calculator-container .error{color:#dc2626;font-size:.9rem;text-align:center}#tip-calculator-container .success{display:flex;flex-direction:column;gap:8px}#tip-calculator-container .success p{margin:0;color:#1e293b;font-size:.95rem}#tip-calculator-container .success span{font-weight:600}#tip-calculator-container .math-example{margin-top:16px;font-size:.9rem;color:#475569;line-height:1.5}#tip-calculator-container .math-example ul{margin:8px 0;padding-left:20px}