:root{

    

    --sidebar-bg-color: #fdf0c6;

    --sidebar-student-bg-color: #D0F3FB;

    --sidebar-lecture-bg-color: #F0F3FF;
}
.sidebar{  width: 200px; min-height: 100vh; height: 100%;}
.sidebar_admin{ background-color: var(--sidebar-bg-color);}
.sidebar_student{ background-color: var(--sidebar-student-bg-color);}
.sidebar_lecture{  background-color: var(--sidebar-lecture-bg-color);}
.sidebar_logo {   padding: 25px 0 0 0;   text-align: center;}
.sidebar_button {    padding: 25px 0 0 0;    text-align: center;}