* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Arial', sans-serif;
}

body {
    background-color: #f5f5f5;
    color: #333;
    line-height: 1.4;
    font-size: 14px;
}

.container {
    max-width: 800px;
    margin: 1rem auto;
    padding: 1rem;
    background-color: #fff;
    border-radius: 6px;
    box-shadow: 0 1px 5px rgba(0, 0, 0, 0.1);
}

h1 {
    text-align: center;
    margin-bottom: 0.5rem;
    color: #3498db;
    font-size: 1.5rem;
}

h2 {
    color: #3498db;
    margin-bottom: 0.25rem;
    font-size: 1rem;
    font-weight: 600;
}

h3 {
    color: #2c3e50;
    margin-top: 0.0rem;
	margin-bottom: 0.5rem;
    font-size: 0.8rem;
    font-weight: 600;
}

.error-container {
    background-color: #ffecec;
    color: #e74c3c;
    padding: 0.75rem;
    border-radius: 4px;
    margin-bottom: 1rem;
    border-left: 3px solid #e74c3c;
    font-weight: bold;
    display: none;
}

.info-section {
    background-color: #f8f9fa;
    padding: 0.75rem;
    border-radius: 4px;
    margin-bottom: 1rem;
    border-left: 3px solid #3498db;
    font-size: 0.9rem;
}

.info-row {
    display: flex;
    justify-content: space-between;
}

.info-label {
    font-weight: bold;
}

.calculator-section {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.form-section {
    background-color: #f8f9fa;
    padding: 0.75rem;
    border-radius: 4px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.75rem;
}

.input-group {
    margin-bottom: 0.5rem;
}

.input-group label {
    display: block;
    margin-bottom: 0.25rem;
    font-weight: 500;
    font-size: 0.85rem;
}

.input-group input {
    width: 100%;
    padding: 0.4rem;
    border: 1px solid #ddd;
    border-radius: 3px;
    font-size: 0.9rem;
}

.result-group {
    margin-top: 0.5rem;
    padding-top: 0.5rem;
    border-top: 1px dashed #ddd;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.9rem;
}

.result-group label {
    font-weight: bold;
}

.result-group span {
    font-weight: 600;
    color: #2ecc71;
}

.total-result {
    background-color: #2c3e50;
    color: #fff;
    padding: 0.75rem;
    border-radius: 4px;
    text-align: center;
}

.total-result h2 {
    color: #fff;
    margin-bottom: 0.25rem;
}

.result-value {
    font-size: 1.25rem;
    font-weight: bold;
    color: #2ecc71;
}

#calculate-btn {
    display: block;
    width: 100%;
    padding: 0.6rem;
    background-color: #3498db;
    color: white;
    border: none;
    border-radius: 4px;
    font-size: 0.9rem;
    font-weight: bold;
    cursor: pointer;
    transition: background-color 0.2s;
    margin-top: 0rem;
}

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

@media (max-width: 600px) {
    .form-grid {
        grid-template-columns: 1fr;
    }
}