/* Tablet & Smaller Desktop (max 1000px) */
@media (max-width: 1000px) {
    .main-layout {
        grid-template-columns: 220px 1fr;
        grid-template-rows: auto 1fr;
        grid-template-areas: "left main" "right main";
        gap: 0.5rem;
    }

    .left-sidebar { grid-area: left; }
    .right-sidebar { grid-area: right; }
    .main-content { grid-area: main; }

    nav a { padding: 9px 3px; }
    nav li a { font-size: 15px; }
    nav li li a { font-size: 14px; }
    nav li li li a { font-size: 13px; }
}