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

/* Fondo moderno con degradado */
body {
    font-family: "Georgia", "Times New Roman", serif;

    background: linear-gradient(135deg, #1f2a38, #2c3e50, #5dade2);

    color: #333;
    padding: 60px 20px;
}

/* Contenedor principal */
.contenedor {
    max-width: 1000px;
    margin: auto;
    background-color: #ffffff;
    padding: 50px;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
}

/* Título principal */
h1 {
    text-align: center;
    font-size: 38px;
    margin-bottom: 40px;
    color: #2c3e50;
    letter-spacing: 2px;
    position: relative;
}

/* Línea decorativa debajo del título */
h1::after{
    content: "";
    width: 80px;
    height: 4px;
    background: #f39c12;
    display: block;
    margin: 10px auto;
}

/* Subtítulos */
h2 {
    margin-top: 35px;
    margin-bottom: 20px;
    font-size: 24px;
    color: #2c3e50;
    border-left: 5px solid #f39c12;
    padding-left: 12px;
}

/* Listas */
ul {
    list-style: none;
    margin-bottom: 25px;
}

ul li {
    background: #f4f6f7;
    padding: 15px 18px;
    margin-bottom: 12px;
    border-left: 5px solid #5dade2;
    font-size: 17px;
    border-radius: 6px;
    transition: 0.3s;
}

/* Efecto al pasar el mouse */
ul li:hover{
    transform: translateX(8px);
    background: #eaf2f8;
}

/* Párrafos */
p {
    font-size: 18px;
    line-height: 1.8;
    text-align: justify;
    margin-top: 15px;
    color: #444;
}

.btn-volver {
    display: block;
    width: fit-content;
    margin-left: 40px;
    margin-top: 40px;
     display: inline-block;
    margin-top: 40px;
    padding: 12px 25px;
    background-color: #34495e;
    color: #e4e7ea;
    text-decoration: none;
    border-left: 4px solid #5dade2;
    font-size: 16px;
    border-radius: 4px;
    transition: all 0.3s ease;

}

.btn-volver:hover {
    background-color: #3d566e;
    padding-left:100px;
}

/* RESPONSIVE */
@media (max-width: 768px) {

    body {
        padding: 30px 15px;
    }

    .contenedor {
        padding: 30px 20px;
    }

    h1 {
        font-size: 28px;
    }

    h2 {
        font-size: 20px;
    }

    ul li {
        font-size: 15px;
    }

    p {
        font-size: 16px;
    }
}