* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    background-color: #f4f4f4;
    color: #333;
}

.container {
    max-width: 800px;
    margin: 30px auto;
    padding: 20px;
    background: #fff;
    border-radius: 5px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

h1 {
    text-align: center;
    margin-bottom: 20px;
    color: #2c3e50;
}

.currency-list {
    margin-bottom: 20px;
}

.currency-item {
    display: flex;
    align-items: center;
    margin-bottom: 10px;
    padding: 10px;
    background: #f9f9f9;
    border-radius: 4px;
}

.currency-item input {
    width: 150px;
    padding: 8px;
    margin-right: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
}

.currency-item select {
    padding: 8px;
    margin-right: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
}

.currency-item .remove-btn {
    background: #e74c3c;
    color: white;
    border: none;
    padding: 5px 10px;
    border-radius: 4px;
    cursor: pointer;
}

.controls {
    display: flex;
    justify-content: space-between;
    margin-top: 20px;
}

button, select {
    padding: 10px;
    background: #3498db;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
}

select {
    background: white;
    color: #333;
    border: 1px solid #ddd;
}