/* =========================================================
   HEADER
   ========================================================= */

header {
    position: fixed;
    z-index: 1100;
    top: 0;
    left: 0;
    right: 0;
    transition: top 0.4s ease;
}

/* Navbar bar */
.navbar {
    background: rgba(255, 255, 255, 0.97);
    backdrop-filter: blur(6px);
    box-shadow: 0 1px 8px rgba(0,0,0,.08);
}

.navbar-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100vw;
    padding: 0 5%;
    height: 70px;
}

/* Logo */
#site-header-img {
    flex-shrink: 0;
    background: 0;
}
#site-header-img img {
    max-height: 70px;
    width: auto;
    display: block;
}

/* ── Shared menu styles ── */
.nav-menu {
    list-style: none;
    margin: 0;
    padding: 0;
}
.nav-menu a {
    text-decoration: none;
    color: #121212;
    font-size: 18px;
    position: relative;
    transition: color 0.2s;
}
.nav-menu a:hover {
    color: #1B3C53;
}
.nav-menu .current-menu-item > a,
.nav-menu .current_page_item > a {
    color: #1B3C53;
    font-weight: 600;
}

/* ── Desktop menu ── */
.desktop-menu {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 32px;
}
.desktop-menu li {
    position: relative;
}
/* underline hover effect */
.desktop-menu li::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -2px;
    width: 0;
    height: 2px;
    background: #1B3C53;
    transition: width 0.25s ease;
}
.desktop-menu li:hover::after {
    width: 100%;
}

/* ── Hamburger button ── */
.hamburger {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 28px;
    height: 19px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
    
    
    
}


.hamburger span {
    display: block;
    width: 100%;
    height: 3px;
    background: #234C6A;
    border-radius: 2px;
    transition: transform 0.3s ease, opacity 0.3s ease, background 0.3s ease;
    transform-origin: center;
}

/* X state */
.hamburger.is-open span:nth-child(1) {
    transform: translateY(8.5px) rotate(45deg);
    background: #E3E3E3;
}
.hamburger.is-open span:nth-child(2) {
    opacity: 0;
}
.hamburger.is-open span:nth-child(3) {
    transform: translateY(-8.5px) rotate(-45deg);
    background: #E3E3E3;
}

/* ── Mobile drawer ── */
.mobile-drawer {
    position: fixed;
    inset: 0;           /* top/right/bottom/left: 0 */
    background: #1B3C53;
    z-index: 1050;
    display: flex;
    align-items: center;
    justify-content: center;

    /* hidden state */
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}
.mobile-drawer.is-open {
    opacity: 1;
    visibility: visible;
}
.mobile-menu {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 28px;
}
.mobile-menu a {
    color: #E3E3E3;
    font-size: 22px;
    font-weight: 500;
}
.mobile-menu a:hover {
    color: #ffffff;
}
.mobile-menu .current-menu-item > a,
.mobile-menu .current_page_item > a {
    color: #ffffff;
    font-weight: 700;
}

/* ── Scroll behaviour ── */
.navbar.scrolled-down {
    top: -80px;
}
.navbar.scrolled-up,
.navbar.at-top {
    top: 0;
}

/* ── Responsive breakpoint ── */
@media (max-width: 768px) {
    .desktop-menu {
        display: none;      /* hide desktop menu on mobile */
    }
    .hamburger {
        display: flex;      /* show hamburger on mobile */
    }
    .very-top-bar {
        display: none;
    }
    .navbar.scrolled-down {
        top: 0;             /* always keep bar visible on mobile */
    }
}

@media (min-width: 769px) {
    .mobile-drawer {
        display: none !important;   /* never show drawer on desktop */
    }
    .hamburger {
        display: none !important;
    }
}

/* =========================================================
   HAMBURGER ICON (legacy #nav-icon4 kept for compat)
   ========================================================= */
#nav-icon4 { display: none; }