/* --- Importación de Fuentes --- */
@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@300;400;500;600;700&display=swap');

/* --- Estilos Generales --- */
body {
    font-family: 'Montserrat', sans-serif;
    line-height: 1.6;
    margin: 0;
    padding: 0;
    background-color: #F8F8F8;
    color: #1A1A1A;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

main {
    max-width: 900px;
    margin: 20px auto;
    padding: 20px;
    background-color: #FFFFFF;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    border-radius: 8px;
    flex-grow: 1;
}

/* --- Encabezado --- */
header {
    background-color: #6A0DAD;
    color: #FFFFFF;
    padding: 40px 20px;
    text-align: center;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

header h1 {
    font-weight: 700;
    font-size: 2.8em;
    margin: 10px 0 0;
    letter-spacing: 1.5px;
}

header img {
    border-radius: 50%;
    border: 4px solid #F8F8F8;
    width: 180px;
    height: 180px;
    object-fit: cover;
    display: block;
    margin: 0 auto 15px;
}

/* --- Navegación --- */
nav {
    background-color: #1A1A1A;
    padding: 20px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    text-align: center;
}

nav h2 {
    color: #FFFFFF;
    font-size: 1.3em;
    margin-bottom: 15px;
    font-weight: 500;
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    padding-bottom: 10px;
    display: inline-block;
    padding-left: 10px;
    padding-right: 10px;
}

nav ul {
    list-style: none;
    padding: 0;
    margin: 0 0 30px 0;
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 15px;
}

nav ul li a {
    text-decoration: none;
    color: #FFFFFF;
    font-weight: 400;
    font-size: 1em;
    padding: 10px 18px;
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 25px;
    transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
    display: block;
}

nav ul li a:hover {
    background-color: #6A0DAD;
    color: #FFFFFF;
    border-color: #6A0DAD;
}

/* --- Contenido Principal --- */
section {
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 1px dashed #E0E0E0;
}

section:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

section h2 {
    color: #6A0DAD;
    font-size: 1.8em;
    font-weight: 600;
    margin-bottom: 15px;
    border-left: 5px solid #6A0DAD;
    padding-left: 10px;
}

section h3 {
    color: #1A1A1A;
    font-size: 1.3em;
    font-weight: 500;
    margin-top: 25px;
    margin-bottom: 10px;
}

section p {
    margin-bottom: 10px;
    color: #555555;
    font-weight: 400;
}

section strong {
    font-weight: 600;
    color: #1A1A1A;
}

/* Listas */
section ul {
    list-style: none;
    padding-left: 20px;
    margin-bottom: 15px;
}

section ul li {
    position: relative;
    margin-bottom: 8px;
    color: #555555;
    font-weight: 400;
}

section ul li:before {
    content: '•';
    color: #6A0DAD;
    font-size: 1.2em;
    position: absolute;
    left: -20px;
    top: 0;
}

/* Listas anidadas (para la foja académica) */
section ul ul {
    list-style: none;
    padding-left: 20px;
    margin-top: 5px;
    margin-bottom: 5px;
}

section ul ul li:before {
    content: '-';
    color: #555555;
    left: -20px;
}

/* --- Pie de Página --- */
footer {
    background-color: #1A1A1A;
    color: #555555;
    text-align: center;
    padding: 15px;
    margin-top: auto;
    font-size: 0.9em;
    border-top: 2px solid #6A0DAD;
}