body {
    font-family: 'Arial', sans-serif;
    background-color: #f5f7fa;
    color: #333;
}

.container {
    max-width: 1000px;
    margin: 0 auto;
}

h1 {
    text-align: center;
    color: #2c3e50;
    margin-bottom: 30px;
}

.ejercicio-box {
    background-color: white;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    margin-bottom: 20px;
    overflow: hidden;
}

.ejercicio-header {
    background-color: #1b6596;
    color: white;
    padding: 15px 20px;
    display: flex;
    align-items: center;
    gap: 15px;
}

.ejercicio-numero {
    background-color: #080055;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
}

.ejercicio-header h2 {
    margin: 0;
    font-size: 1.2em;
}

.ejercicio-content {
    padding: 20px;
}

pre {
    margin: 0;
    background-color: #f8f9fa;
    padding: 15px;
    border-radius: 5px;
    overflow-x: auto;
}

code {
    font-family: 'Courier New', monospace;
    font-size: 0.95em;
    line-height: 1.5;
    color: #2c3e50;
}