/* --- PHẦN HEADER DÙNG CHUNG CHO TOÀN BỘ WEBSITE --- */
html { font-size: 62.5% !important; }
* { 
    font-family: 'Poppins', sans-serif; 
    -webkit-font-smoothing: antialiased;
}

.header {
    display: flex !important;
    align-items: center !important;
    justify-content: space-between!important;
    width: 100%!important;
    padding: 1.5rem 4% !important; 
    position: fixed;
    top: 0!important;
    left: 0!important;
    z-index: 1000;
    transition: all 0.3s ease;
    box-sizing: border-box !important;
    background: #ffffff !important;
    box-shadow: 0 .2rem .8rem rgba(0, 0, 0, 0.08);
}

.header.header-transparent {
    background: transparent !important;
    box-shadow: none !important;
}

.header.header-transparent .navbar ul li a {
    color: #ffffff !important;
}

.header.header-transparent .navbar ul li a:hover,
.header.header-transparent .navbar ul li a.active {
    color: #d6ecff !important;
    border-bottom: 2px solid #d6ecff !important;
}

.header.header-transparent .fa-bars {
    color: #ffffff !important;
}

.header.force-blue-text.header-transparent .navbar ul li a {
    color: #002e5f !important;
}

.header.force-blue-text.header-transparent .navbar ul li a:hover,
.header.force-blue-text.header-transparent .navbar ul li a.active {
    color: #006bb3 !important;
    border-bottom: 2px solid #006bb3 !important;
}

.header.force-blue-text.header-transparent .fa-bars {
    color: #002e5f !important;
}

.header.header-dark {
    background: #ffffff !important;
}
.header.header-active {
    background: #ffffff !important;
    box-shadow: 0 .5rem 1rem rgba(0,0,0,0.12);
    padding: 1rem 4% !important;
}

.header .logo img {
    height: 4rem !important; /* Tăng nhẹ chiều cao cho rõ */
    width: auto !important;
    display: block !important;
    visibility: visible !important;
    opacity: 1 !important;
}
.header .navbar ul { 
    display: flex !important; 
    list-style: none !important; 
    flex-direction: row !important;
    align-items: center; 
    margin: 0 !important;
    padding: 0 !important;
}

.header .navbar ul li { 
    margin-left: 3.5rem !important; 
    margin-right: 0 !important;
    padding: 0 !important;
}

.header .navbar ul li a {
    font-size: 1.8rem !important; 
    color: #002e5f !important;
    font-weight: 400 !important;
    transition: .2s;
    letter-spacing: 1.5px !important;
    white-space: nowrap;
}

.header .navbar ul li a:hover, 
.header .navbar ul li a.active {
    color: #006bb3 !important;
    text-decoration: none !important; 
    border-top: none !important; 
    border-bottom: 2px solid #006bb3 !important; 
    padding-bottom: 5px;
    transition: 0.2s;
}

/* Mobile Responsive */
.header .fa-bars {
    color: #002e5f;
    cursor: pointer;
    font-size: 3rem;
    display: none;
}

@media (max-width: 1000px) {
    .header .fa-bars {
        display: block;
        position: relative;
        z-index: 1002;
    }
    .header .navbar { 
        position: fixed; top: -120%; left: 0; width: 100%; 
        background: #fff; border-top: .1rem solid rgba(0,0,0,.3); transition: .3s;
        z-index: 1001;
        max-height: calc(100vh - 7rem);
        overflow-y: auto;
    }
    .header .navbar.nav-toggle { top: 6.8rem; }
    .header .navbar ul {
        display: flex !important;
        flex-direction: column !important;
        align-items: flex-start !important;
        justify-content: flex-start !important;
        width: 100%;
        padding: 1rem 1.6rem !important;
    }
    .header .navbar ul li {
        margin: 0 !important;
        width: 100%;
        border-bottom: 1px solid #e5ecf4;
    }
    .header .navbar ul li:last-child {
        border-bottom: none;
    }
    .header .navbar ul li a {
        display: block;
        width: 100%;
        color: #002e5f !important;
        font-size: 2.2rem !important;
        letter-spacing: 0.4px !important;
        padding: 1.2rem 0.6rem;
        border-bottom: none !important;
    }
    .header .navbar ul li a:hover,
    .header .navbar ul li a.active {
        color: #002e5f !important;
        background: #f3f8ff;
        border-bottom: none !important;
        padding-bottom: 1.2rem;
    }

    .header.header-transparent .navbar.nav-toggle ul li a {
        color: #002e5f !important;
    }

    .header.header-transparent .navbar.nav-toggle ul li a:hover,
    .header.header-transparent .navbar.nav-toggle ul li a.active {
        color: #002e5f !important;
        border-bottom: none !important;
        background: #f3f8ff;
    }
}