/* Reset básico y configuración global */
* {
    box-sizing: border-box;
}

html {
    background-color: #f4f4f4;
    /* Fondo suave para la ventana */
    min-height: 100%;
}

body {
    max-width: 50rem;
    margin: 2rem auto;
    padding: 2rem 3rem;
    background-color: #fffdfa;
    /* Fondo tipo tarjeta/papel */
    color: #333;
    font-size: 1.125rem;
    line-height: 1.5;
    border: 1px solid #969191;
    border-radius: 12px;
    box-shadow: 0 2px 12px 2px #bbb;
    text-align: left;
}

header,
footer {
    text-align: center;
    background-color: #f0f0f0;
    padding: 1.5rem;
    border-radius: 8px;
    border: 1px solid #e0e0e0;
    margin-bottom: 2rem;
}



h1 {
    color: #2e0b67;
    /* Tono rojizo elegante (Firebrick) */
    font-size: 2.2rem;
    font-weight: 300;
    margin: 0.5rem 0;
    text-align: center;
}

h2 {
    color: #2e0b67;
    font-size: 1.6rem;
    font-weight: 500;
    border-bottom: 1px solid #eee;
    padding-bottom: 0.5rem;
    margin-top: 2rem;
    margin-bottom: 1rem;
}

h3 {
    color: #2e0b67;
    font-size: 1.25rem;
    font-weight: 600;
    margin-top: 1.5rem;
    margin-bottom: 0.8rem;
}

p {
    margin-bottom: 1.2rem;
    text-align: justify;
}

a {
    color: #a93226;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s ease;
    line-height: 2.5rem;
    font-size: 1.2rem;
}

a:hover {
    color: #c0392b;
    text-decoration: underline;
}

a:visited {
    color: #7b241c;
}

hr {
    border: 0;
    height: 1px;
    background-image: linear-gradient(to right, rgba(0, 0, 0, 0), rgba(0, 0, 0, 0.2), rgba(0, 0, 0, 0));
    margin: 2.5rem 0;
}

/* Ajustes para móviles */
@media (max-width: 768px) {
    body {
        margin: 1rem;
        padding: 1.5rem;
        width: auto;
        border-radius: 8px;
    }

    h1 {
        font-size: 1.8rem;
    }

    h2 {
        font-size: 1.4rem;
    }
}

/* Navegación entre capítulos */
#navegacion-capitulos {
    display: flex;
    justify-content: space-between;
    margin: 2rem 0;
    padding-top: 1.5rem;
    border-top: 1px solid #e0e0e0;
}

.nav-btn {
    display: inline-block;
    padding: 0.5rem 1rem;
    background-color: #f9f9f9;
    border: 1px solid #ddd;
    border-radius: 6px;
    color: #a93226;
    font-weight: 600;
    transition: all 0.2s ease;
}

.nav-btn:hover {
    background-color: #a93226;
    color: white;
    text-decoration: none;
    border-color: #a93226;
}

/* Navegación entre capítulos */
#navegacion-capitulos {
    display: flex;
    justify-content: space-between;
    margin: 2rem 0;
    padding-top: 1.5rem;
    border-top: 1px solid #e0e0e0;
}

.nav-btn {
    display: inline-block;
    padding: 0.5rem 1rem;
    background-color: #f9f9f9;
    border: 1px solid #ddd;
    border-radius: 6px;
    color: #a93226;
    font-weight: 600;
    transition: all 0.2s ease;
}

.nav-btn:hover {
    background-color: #a93226;
    color: white;
    text-decoration: none;
    border-color: #a93226;
}