body{margin:0;padding:0;background-color:#f3f8ff;font-family:'Poppins', sans-serif}.container{width:60%;max-width:1000px;margin:30px auto;background:#ffffff;padding:20px;border-radius:8px;box-shadow:0 4px 12px rgba(0,0,0,0.1)}.top-header{background:#003060;color:white;font-size:22px;font-weight:600;padding:15px;text-align:center;border-radius:8px 8px 0 0;margin-bottom:5px}.header-link{color:inherit;text-decoration:none}.header{background:#6699CC;padding:15px;text-align:center;color:white;font-size:22px;font-weight:600;border-radius:8px;margin-top:0;margin-bottom:15px}.input-section h3{margin-top:20px}.input-section label{display:block;margin-bottom:8px}.input-section input{width:100%;padding:8px;margin-top:5px;border:1px solid #ccc;border-radius:6px;font-size:16px}button{display:block;margin:20px auto;padding:12px 20px;font-size:18px;font-weight:600;color:#fff;background:#28a745;border:none;border-radius:6px;cursor:pointer;transition:background 0.3s}button:hover{background:#0056b3}.result-section{width:100%;border-collapse:collapse;margin-top:10px;text-align:center}.result-section table{width:100%;border-collapse:collapse;margin-top:10px}.result-section th, .result-section td{padding:10px;text-align:left;border-bottom:1px solid #ccc}.toggle-buttons{margin-top:15px;display:flex;gap:10px;flex-wrap:wrap;justify-content:center}.chart-container{margin-top:20px}.footer{text-align:center;margin-top:50px;font-size:14px;color:#888}