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

/* BODY */

body {
    background-color: #f4f4f4;
    color: #333;
    padding: 20px;
}

header {
    background-color: #2c3e50;
    color: white;
    padding: 15px;
    text-align: center;
    margin-bottom: 20px;
}

main {
    max-width: 800px;
    margin: 0 auto;
}

section {
    background-color: white;
    padding: 15px;
    margin-bottom: 20px;
    border-radius: 5px;
}

h1, h2 {
    margin-bottom: 10px;
}

#simulador label {
    display: block;
    margin-bottom: 10px;
}

input {
    width: 100%;
    padding: 8px;
    margin-top: 5px;
}

button {
    padding: 10px;
    background-color: #3498db;
    color: white;
    border: none;
    cursor: pointer;
    margin-top: 10px;
}

button:hover {
    background-color: #2980b9;
}

.resultado-prestamo {
    border: 1px solid #ddd;
    padding: 10px;
    margin-top: 10px;
}

.item-historial {
    border-bottom: 1px solid #ccc;
}

.item-historial button {
    background-color: #e74c3c;
    margin-top: 5px;
}

.item-historial button:hover {
    background-color: #c0392b;
}

footer {
    text-align: center;
    margin-top: 30px;
    color: #555;
}