/* Mobile Navigation Panel - Slide-in from left */
/* These styles are primarily for the mobile view, 
   and will be largely controlled by responsive.css for when #main-nav behaves this way */

#main-nav { 
    display: flex;
    flex-direction: column;
    overflow-y: auto; 
}

/* Styles for #main-nav when it's the mobile slide-in panel */
/* These will be applied via @media queries in responsive.css */
@media (max-width: 768px) {
    #main-nav {
        position: fixed;
        top: 0;
        left: 0;
        width: var(--menu-width);
        height: 100vh;
        background-color: var(--background-color);
        box-shadow: 2px 0 15px rgba(0,0,0,0.2);
        padding-top: 60px; 
        padding-bottom: 20px;
        transform: translateX(-100%);
        transition: transform 0.4s ease-in-out;
        z-index: 1000; 
    }
    #main-nav.active {
        transform: translateX(0);
    }

    #main-nav ul {
        flex-direction: column;
        align-items: flex-start; 
        width: 100%;
        padding: 0; 
    }

    #main-nav ul li {
        margin: 0; 
        width: 100%;
        text-align: left; 
    }
    #main-nav ul li a {
        display: block;
        padding: 15px 20px; 
        width: 100%;
        color: var(--primary-color);
        font-weight: 500;
        border-bottom: 1px solid var(--light-accent-color); 
    }
    #main-nav ul li:last-child a {
        border-bottom: none;
    }

    #main-nav ul li a::after {
        display: none; 
    }
    #main-nav ul li a:hover, 
    #main-nav ul li a.active {
        background-color: var(--light-accent-color);
        color: var(--secondary-color);
    }
}

/* Mobile Menu Close Button (inside nav panel) */
#mobile-menu-close {
    display: block; 
    position: absolute;
    top: 15px;
    right: 20px;
    background: none;
    border: none;
    font-size: 2.5rem;
    color: var(--primary-color);
    cursor: pointer;
    padding: 0;
    line-height: 1;
}

/* Menu Overlay for dimming content */
#menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    opacity: 0;
    visibility: hidden;
    z-index: 999; 
    transition: opacity 0.4s ease-in-out, visibility 0.4s ease-in-out;
}

#menu-overlay.active {
    opacity: 1;
    visibility: visible;
}