body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f4f4f4;
    color: #333;
}
.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 20px;
}
header {
    text-align: center;
    padding: 40px 0;
    background-color: #fff;
}
.logo {
    max-width: 200px;
    margin-bottom: 20px;
}
h1 {
    font-size: 2.5em;
    margin: 0.5em 0;
}
h2 {
    font-size: 2em;
    margin: 1em 0;
}
.tools {
    margin: 40px 0;
}
.tool-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}
.tool-card {
    display: block;
    background-color: #ffc107; /* Amarillo */
    padding: 20px;
    border-radius: 8px;
    text-decoration: none;
    color: #333;
    box-shadow: 0 2px 5px rgba(0,0,0,0.2);
    transition: transform 0.2s;
}
.tool-card:hover {
    transform: translateY(-5px);
    background-color: #ffb300; /* Amarillo más oscuro al hover */
}
.tool-card h3 {
    margin: 0 0 10px;
    font-size: 1.5em;
    color: #333;
}
.tool-card p {
    margin: 0;
    color: #555;
}
footer {
    text-align: center;
    padding: 20px 0;
    background-color: #fff;
    margin-top: 40px;
}
footer p {
    margin: 5px 0;
}
footer a {
    color: #2196f3;
    text-decoration: none;
}
footer a:hover {
    text-decoration: underline;
}
.ad-container {
    margin-top: 20px;
    padding: 10px;
    text-align: center;
}