body { 
    /* A slightly warmer background to feel less clinical/corporate */
    background-color: #fcfcfb; 
    color: #292524; 
}
.heading-serif { 
    font-family: 'Playfair Display', serif; 
}
.glass-nav {
    background: rgba(252, 252, 251, 0.95);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(28, 25, 23, 0.04);
}
#mobile-menu-toggle:checked ~ #mobile-menu {
    display: flex;
}