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

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

/* --- Cabecera fija --- */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: #fafafa;
    border-bottom: 1px solid #ddd;
    padding: 15px 0;
    text-align: center;
    z-index: 1000;
}

header h1 {
    font-style: italic;
    font-size: 32px;
    margin-bottom: 8px;
}

header nav a {
    text-decoration: none;
    color: #333;
    margin: 0 15px;
    font-weight: bold;
    transition: color 0.3s;
}

header nav a i {
    margin-right: 5px;
}

header nav a:hover {
    color: #e6b800;
}

/* --- Contenido principal --- */
.contenido {
    max-width: 800px;
    margin: 140px auto 50px auto; /* espacio por header fijo */
    padding: 0 20px;
    text-align: justify;
}

/* --- Imagen principal --- */
.imagen-principal {
    width: 100%;
    border-radius: 10px;
    margin-bottom: 25px;
}

/* --- Imagen del autor --- */
.imagen-autor {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    float: right;
    margin-left: 20px;
    margin-bottom: 10px;
}

/* --- Icono --- */
.icono {
    display: block;
    width: 80px;
    margin: 30px auto;
}

/* --- Fecha y autor --- */
.fecha {
    font-size: 14px;
    color: #777;
    margin-bottom: 20px;
}

/* --- Redes sociales --- */
.redes {
    text-align: center;
    margin-top: 50px;
}

.redes a {
    color: #333;
    margin: 0 10px;
    font-size: 22px;
    transition: color 0.3s;
}

.redes a:hover {
    color: #e6b800;
}