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

body {
    font-family: 'Arial', sans-serif;
    line-height: 1.6;
    background-color: #f9f9f9;
    color: #333;
}

/* -----------------------------
   Contenedor principal
------------------------------ */
main {
    max-width: 800px;
    margin: 40px auto;
    padding: 20px;
    background-color: #fff;
    border-radius: 10px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

/* -----------------------------
   Encabezados
------------------------------ */
header {
    text-align: center;
    padding: 20px 0;
}

header h1 {
    font-size: 2rem;
    color: #1a73e8;
}

/* -----------------------------
   Títulos secciones
------------------------------ */
h2 {
    margin-top: 25px;
    margin-bottom: 10px;
    font-size: 1.4rem;
    color: #1a73e8;
}

/* -----------------------------
   Párrafos y listas
------------------------------ */
p {
    margin-bottom: 15px;
}

ul {
    margin-bottom: 15px;
    padding-left: 20px;
}

li {
    margin-bottom: 8px;
}

/* -----------------------------
   Links
------------------------------ */
a {
    color: #1a73e8;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

/* -----------------------------
   Footer
------------------------------ */
footer {
    text-align: center;
    padding: 20px;
    font-size: 0.9rem;
    color: #777;
    margin-top: 40px;
}

/* -----------------------------
   Responsive
------------------------------ */
@media (max-width: 600px) {
    main {
        margin: 20px;
        padding: 15px;
    }

    header h1 {
        font-size: 1.6rem;
    }

    h2 {
        font-size: 1.2rem;
    }
}