body {
    font-family: 'Arial', sans-serif;
    background-color: #f5f5f5;
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    flex-direction: column;
}

.container {
    background-color: white;
    border-radius: 10px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    padding: 2rem;
    width: 100%;
    max-width: 500px;
    margin: 0 auto;
}

h1 {
    text-align: center;
    color: #333;
    margin-bottom: 2rem;
}

.calculator {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.input-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

label {
    font-weight: bold;
    color: #555;
}

input[type="number"],
select {
    padding: 0.8rem;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 1rem;
    transition: border-color 0.3s;
}

input[type="number"]:focus,
select:focus {
    outline: none;
    border-color: #4a90e2;
}

.currency-group {
    display: flex;
    gap: 1rem;
}

.currency-group .input-group {
    flex: 1;
}

button {
    background-color: #4a90e2;
    color: white;
    border: none;
    padding: 1rem;
    border-radius: 5px;
    font-size: 1rem;
    cursor: pointer;
    transition: background-color 0.3s;
    font-weight: bold;
}

button:hover {
    background-color: #3a7bc8;
}

.result {
    text-align: center;
    padding: 1.5rem;
    background-color: #f9f9f9;
    border-radius: 5px;
}

#result-text {
    color: #2c3e50;
    font-size: 2rem;
    margin: 0;
}

#rate-info {
    color: #7f8c8d;
    margin: 0.5rem 0 0;
    font-size: 0.9rem;
}

.privacy-notice {
    margin-top: 20px;
    padding: 10px;
    text-align: center;
    font-size: 0.8em;
    color: #666;
    width: 100%;
    max-width: 500px;
}

.privacy-notice p {
    margin: 0;
}

@media (max-width: 480px) {
    .currency-group {
        flex-direction: column;
    }
    
    body {
        padding: 20px 0;
    }
}