/* ============================================================
   mobile.css
   - Burger menu button and full-screen mobile navigation
   - Mobile (≤768px) layout overrides for the main site
   - Fixed desktop navigation bar positioning
   ============================================================ */

/* ------------------------------------------------------------
   Burger button (hidden on desktop)
   ------------------------------------------------------------ */
.burger-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 10px;
    z-index: 1001;
}

.burger-bar {
    display: block;
    width: 26px;
    height: 2px;
    margin: 5px 0;
    background-color: #454545;
    border-radius: 2px;
    transition: transform 0.3s ease, opacity 0.3s ease;
}

/* Animate bars into an "X" when menu is open */
.burger-toggle.open .burger-bar:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
}

.burger-toggle.open .burger-bar:nth-child(2) {
    opacity: 0;
}

.burger-toggle.open .burger-bar:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
}

/* ------------------------------------------------------------
   Desktop/Tablet: fixed navigation bar
   ------------------------------------------------------------ */
#sitemenu-container {
    position: fixed;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 960px;
    z-index: 9000;
    background-color: #fff;
}

/* Push page content down so the banner isn't hidden under the fixed nav */
#page-top {
    margin-top: 45px;
}

/* ------------------------------------------------------------
   Mobile breakpoint (≤768px)
   ------------------------------------------------------------ */
@media (max-width: 768px) {

    /* Layout: make the container fluid so the breakpoint actually applies */
    #page-container {
        width: 100%;
        max-width: 100%;
        overflow-x: hidden;
    }

    /* Flex the #page to allow logical ordering of header/main/sidebar/footer */
    #page {
        display: flex;
        flex-wrap: wrap;
    }

    #page > header {
        order: -1;
        width: 100%;
    }

    #page > footer {
        order: 99;
        width: 100%;
    }

    /* Increase body font size on mobile for readability */
    body {
        font-size: 85%;
    }

    /* Fixed top bar behind the burger button */
    .mobile-top-bar {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 56px;
        background-color: #fff;
        z-index: 9999;
        box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    }

    /* Banner + title */
    #page-top {
        margin-top: 56px;
        margin-bottom: 5px;
    }

    #title {
        height: 95px;
        padding-top: 45px;
        background-size: 100% 140px;
        margin-left: 20px;
        margin-right: 20px;
    }

    #title h1 {
        font-size: 2em;
        height: 140px;
    }

    /* Show and style the burger button */
    button.burger-toggle {
        display: block;
        position: fixed;
        top: 6px;
        right: 14px;
        z-index: 10000;
        background-color: #fff;
        border: 0px solid #000;
        border-radius: 4px;
        padding: 8px;
        box-sizing: border-box;
    }

    button.burger-toggle .burger-bar {
        background-color: #000;
    }

    /* Full-screen overlay menu */
    .main-nav {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background-color: #fff;
        z-index: 9998;
        overflow-y: auto;
        padding-top: 70px;
    }

    .main-nav.open {
        display: block;
    }

    /* Lock body scroll when menu is open */
    body.burger-open {
        overflow: hidden;
    }

    /* Stack menu items vertically */
    .main-nav ul {
        flex-direction: column;
        padding: 0;
        margin: 0;
        list-style: none;
    }

    .main-nav li {
        display: block;
    }

    .main-nav #sitemenu-container {
        position: static;
        transform: none;
        width: 100%;
        height: auto;
        text-align: left;
        background-color: transparent;
        display: block;
        font-size: 1.4em;
    }

    .main-nav #sitemenu {
        text-align: left;
    }

    .main-nav #sitemenu-content ul li {
        display: block;
    }

    .main-nav #sitemenu-content ul li .in {
        line-height: 1.4em;
        height: auto;
        display: block;
        padding: 14px 20px;
        background-color: transparent;
    }

    .main-nav a,
    .main-nav #sitemenu a,
    .main-nav #sitemenu-content ul li a {
        display: block;
        padding: 0;
        color: #333;
        text-decoration: none;
        border-bottom: 1px solid #eee;
    }

    .main-nav a:hover,
    .main-nav #sitemenu a .in:hover,
    .main-nav #sitemenu-content ul li a:hover .in {
        background-color: #eee;
    }

    /* ---- Mobile submenu overrides ---- */
    /* Undo desktop float/absolute so submenus stack vertically */
    .main-nav .ddsmoothmenu ul li {
        float: none;
        display: block;
    }

    .main-nav .ddsmoothmenu ul li ul {
        position: static;
        left: auto !important;
        display: none;
        visibility: visible;
        border: none !important;
        box-shadow: none !important;
        padding-top: 0;
        margin: 0;
    }

    /* Indent sub-level items */
    .main-nav .ddsmoothmenu ul li ul li a .in {
        padding-left: 40px;
    }

    .main-nav .ddsmoothmenu ul li ul li ul li a .in {
        padding-left: 60px;
    }

    /* Rotate chevron when submenu is open */
    .main-nav li.opened > a .submenu-indicator {
        transform: rotate(180deg);
    }

    /* Content layout: stack main above sidebar */
    body.allow-sidebar #main {
        float: none;
        width: 100%;
        order: 1;
    }

    #sidebar-container {
        float: none;
        width: 100%;
        order: 2;
    }

    /* Narrow/floated images become full-width on mobile */
    body.allow-sidebar #main img.narrow {
        width: 100%;
        height: auto;
        margin-bottom: 10px;
    }
}