/* ========================================
   MOBILE BURGER MENU
   Standalone file — included on pages that
   don't load styles.css (e.g. pob-viewer)
======================================== */

/* Burger button - hidden on desktop */
.burger-menu-btn {
    display: none;
    position: fixed;
    top: 12px;
    right: 12px;
    z-index: 10001;
    width: 44px;
    height: 44px;
    background: rgba(25, 30, 39, 0.95);
    border: 1px solid rgba(196, 156, 80, 0.5);
    border-radius: 6px;
    padding: 10px 8px;
    flex-direction: column;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
}

.burger-menu-btn span {
    display: block;
    width: 24px;
    height: 3px;
    background-color: #c49c50;
    border-radius: 2px;
    transition: transform 0.3s ease, opacity 0.3s ease;
}

/* Remove focus ring */
.burger-menu-btn:focus,
.burger-menu-btn:focus-visible {
    outline: none;
    box-shadow: none;
}

/* Animate to right-pointing arrow when open */
.burger-menu-btn.is-open span {
    opacity: 0;
    width: 0;
}

.burger-menu-btn.is-open::after {
    content: '❯';
    position: absolute;
    color: #c49c50;
    font-size: 22px;
    line-height: 1;
    font-family: Arial, sans-serif;
}

/* Dark overlay behind the menu */
.burger-menu-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    z-index: 9999;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.burger-menu-overlay.is-visible {
    opacity: 1;
}

/* Prevent body scroll when menu is open */
body.mobile-menu-active {
    overflow: hidden;
}

/* Mobile-only styles */
@media (max-width: 991px) {
    .burger-menu-btn {
        display: flex;
    }

    .burger-menu-overlay {
        display: block;
        pointer-events: none;
    }

    .burger-menu-overlay.is-visible {
        pointer-events: auto;
    }

    /* Sidebar: off-screen right by default, slides in full-screen */
    .hovercraft {
        position: fixed !important;
        right: 0 !important;
        top: 0 !important;
        bottom: 0 !important;
        left: 0 !important;
        width: 100% !important;
        min-width: 100% !important;
        max-width: 100% !important;
        height: 100% !important;
        order: unset !important;
        transform: translateX(100%) !important;
        transition: transform 0.3s ease !important;
        z-index: 10000 !important;
        overflow-y: auto !important;
        border-bottom: none !important;
        box-shadow: none !important;
        padding-bottom: 0 !important;
    }

    .hovercraft.mobile-menu-open {
        transform: translateX(0) !important;
    }

    /* Move passive tree close button below the burger menu on mobile */
    #treeModalClose {
        top: 64px !important;
    }
}