.weekday-calculator-container {
    font-family: Arial, sans-serif;
    margin: 0 auto;
    width: 800px;
}

.weekday-calculator-container h1 {
    text-align: center;
    color: #2c3e50;
    margin-bottom: 10px;
    font-size: 28px;
}

.weekday-calculator-table {
    width: 80%;
    border-collapse: collapse;
    margin: 15px 0;
    background-color: white;
}

.weekday-calculator-table th {
    background-color: #f2f2f2;
}
        
.weekday-calculator-table td {
    padding: 20px 10px;
    text-align: left;
    border: 1px solid #ddd;
}

.weekday-calculator-table th {
    background-color: #f2f2f2;
}

.weekday-calculator-table input[type="number"] {
    padding: 4px;
    width: 80px;
    border: 1px solid #ccc;
}

.weekday-calculator-table select {
    padding: 4px;
    width: 100px;
    border: 1px solid #ccc;
}

.weekday-calculator-table input[type="checkbox"] {
    margin-left: 10px;
}

#weekday-calculator-btn {
    background-color: #3498db;
    color: white;
    border: none;
    padding: 10px 15px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
    display: block;
    margin: 20px 0;
    transition: background-color 0.3s;
}

#weekday-calculator-btn:hover {
    background-color: #2980b9;
}

.weekday-calculator-result-table {
    margin-top: 30px;
    width: 50%;
    border-collapse: collapse;
}

.weekday-calculator-result-table td {
    padding: 8px 15px;
    border: 1px solid #ddd;
    background-color: white;
}

.weekday-calculator-error {
    color: #e74c3c;
    font-weight: bold;
    text-align: center;
    padding: 10px;
}

.weekday-calculator-disclaimer {
    font-size: 12px;
    margin-top: 30px;
    color: #777;
    font-style: italic;
    padding: 10px;
}

.weekday-result {
    font-size: 24px;
    color: #27ae60;
}

.weekday-details {
    margin-top: 10px;
    font-size: 14px;
    color: #7f8c8d;
    font-weight: normal;
}