uldp.edu.vn/app/components/layout/Header/header-responsive.css

/* ========================================
   HEADER RESPONSIVE FIXES
   Additional responsive adjustments for header
   ======================================== */

/* ========================================
   MOBILE & TABLET (max-width: 991px)
   ======================================== */

@media (max-width: 991px) {
    /* Ensure header is always visible and sticky */
    #header-sticky {
        position: sticky !important;
        top: 0;
        z-index: 999;
        background-color: var(--white);
    }

    /* Add shadow when scrolled */
    #header-sticky.sticky {
        box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    }

    /* Header container adjustments */
    .header-1 .container-fluid {
        padding-left: 20px;
        padding-right: 20px;
    }

    /* Header main layout */
    .header-1 .header-main {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 12px 0;
        min-height: 60px;
    }

    /* Logo section */
    .header-1 .header-left {
        flex: 0 0 auto;
    }

    .header-1 .header-left .logo {
        margin: 0;
    }

    .header-1 .header-left .logo img {
        max-height: 40px;
        height: 40px;
        width: auto;
        object-fit: contain;
    }

    /* Right section with icons */
    .header-1 .header-right {
        flex: 0 0 auto;
        margin-top: 0 !important;
    }

    .header-1 .header-right .header-call-item {
        display: flex;
        align-items: center;
        gap: 12px;
    }

    /* Search icon mobile styling */
    .header-1 .header-right .main-header__search {
        width: 40px;
        height: 40px;
        border: 2px solid var(--theme);
        border-radius: 50%;
        background: transparent;
        display: flex;
        align-items: center;
        justify-content: center;
        padding: 0;
        transition: all 0.3s ease;
    }

    .header-1 .header-right .main-header__search i {
        font-size: 16px;
        color: var(--theme);
        transition: color 0.3s ease;
    }

    .header-1 .header-right .main-header__search:hover {
        background-color: var(--theme);
    }

    .header-1 .header-right .main-header__search:hover i {
        color: var(--white);
    }

    /* Hamburger icon mobile styling */
    .header-1 .header__hamburger {
        margin: 0;
    }

    .header-1 .header__hamburger .sidebar__toggle {
        font-size: 24px;
        color: var(--header);
        padding: 8px;
        display: flex;
        align-items: center;
        justify-content: center;
        transition: color 0.3s ease;
    }

    .header-1 .header__hamburger .sidebar__toggle:hover {
        color: var(--theme);
    }

    /* Ensure icons don't stick to edges */
    .header-1 .header-right .header-call-item > * {
        flex-shrink: 0;
    }
}

/* ========================================
   SMALL MOBILE (max-width: 480px)
   ======================================== */

@media (max-width: 480px) {
    .header-1 .container-fluid {
        padding-left: 15px;
        padding-right: 15px;
    }

    .header-1 .header-main {
        padding: 10px 0;
        min-height: 55px;
    }

    .header-1 .header-left .logo img {
        max-height: 35px;
        height: 35px;
    }

    .header-1 .header-right .header-call-item {
        gap: 10px;
    }

    .header-1 .header-right .main-header__search {
        width: 38px;
        height: 38px;
    }

    .header-1 .header-right .main-header__search i {
        font-size: 15px;
    }

    .header-1 .header__hamburger .sidebar__toggle {
        font-size: 22px;
        padding: 6px;
    }
}

/* ========================================
   DESKTOP (min-width: 992px)
   ======================================== */

@media (min-width: 992px) {
    /* Ensure desktop layout is not affected */
    .header-1 .header-main {
        display: flex;
        align-items: center;
        justify-content: space-between;
    }

    /* Desktop menu visible */
    .header-1 .mean__menu-wrapper {
        display: block;
    }

    /* Desktop button visible */
    .header-1 .header-right .theme-btn {
        display: inline-flex;
    }

    /* Ensure proper desktop search icon */
    .header-1 .header-right .main-header__search {
        width: 40px;
        height: 40px;
        border-radius: 50%;
        background-color: var(--bg);
        display: flex;
        align-items: center;
        justify-content: center;
    }
}

/* ========================================
   PREVENT LAYOUT SHIFT ON LOAD
   ======================================== */

.header-1 {
    transition: none;
}

.header-1.sticky {
    transition: box-shadow 0.3s ease;
}

/* ========================================
   Z-INDEX MANAGEMENT
   ======================================== */

.header-1 {
    z-index: 999;
}

.mobile-slide-menu {
    z-index: 99999;
}

.mobile-menu-overlay {
    z-index: 99998;
}

.offcanvas__info {
    z-index: 9999999;
}

.offcanvas__overlay {
    z-index: 900;
}

/* ========================================
   ACCESSIBILITY IMPROVEMENTS
   ======================================== */

@media (max-width: 991px) {
    /* Focus states for mobile */
    .mobile-search-icon:focus,
    .mobile-hamburger .sidebar__toggle:focus {
        outline: 2px solid var(--theme);
        outline-offset: 2px;
    }

    /* Touch target sizes */
    .mobile-search-icon,
    .mobile-hamburger .sidebar__toggle {
        min-width: 44px;
        min-height: 44px;
    }
}

/* ========================================
   HIDE OFFCANVAS ON MOBILE (Prevent Menu Overlap)
   ======================================== */

@media (max-width: 991px) {
    /* Hide the old offcanvas menu on mobile - only use new mobile menu */
    .offcanvas__info,
    .offcanvas__overlay {
        display: none !important;
        visibility: hidden !important;
        pointer-events: none !important;
    }
}

@media (min-width: 992px) {
    /* Hide mobile menu on desktop - only use offcanvas */
    .mobile-slide-menu,
    .mobile-menu-overlay {
        display: none !important;
        visibility: hidden !important;
        pointer-events: none !important;
    }
}