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

:root {
    --fondo: #f9f9f9;
    --gris: #333;
    --verde: #a6f0d9;
    --sombra: rgba(0, 0, 0, 0.1);
    --link: #008cba;
    --link-hover: #005f5f;
}

body {
    background-color: var(--fondo);
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    color: var(--gris);
    padding: 20px;
    line-height: 1.6;
}

h1 {
    text-align: center;
    font-size: 2em;
    margin-bottom: 20px;
    color: #444;
}

h2 {
    font-size: 1.4em;
    margin-bottom: 10px;
    color: #444;
}

main {
    max-width: 600px;
    margin: auto;
}

.seccion {
    background-color: white;
    padding: 20px;
    border-radius: 12px;
    margin-bottom: 20px;
    box-shadow: 0 2px 8px var(--sombra);
}

ul {
    list-style: none;
    padding-left: 0;
    text-align: center;
}

li {
    margin-bottom: 15px;
}

a {
    display: inline-block;
    background-color: var(--link);
    color: white;
    padding: 10px 16px;
    border-radius: 8px;
    text-decoration: none;
    transition: background-color 0.3s ease;
    min-width: 250px;
    max-width: 90%;
    width: 100%;
    text-align: center;
}

a:hover {
    background-color: var(--link-hover);
}

/* Responsive */
@media (max-width: 500px) {
    body {
        padding: 10px;
    }

    h1 {
        font-size: 1.5em;
    }

    a {
        width: 100%;
        max-width: 100%;
    }
}