* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: Roboto, sans-serif
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px
}

.navbar {
    background-color: transparent;
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    padding-top: 0
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    min-height: 80px;
    max-width: 100%;
    margin: 0;
    padding: 0 0 0 20px
}

.logo-container {
    display: flex;
    align-items: center;
    position: relative;
    transition: background-color .5s ease
}

.navbar.scrolled {
    background-color: #036;
    box-shadow: 0 2px 10px rgba(0, 0, 0, .1)
}

.logo-img {
    height: 80px;
    width: auto;
    font-weight: 700;
    color: #fff
}

.logo-container.active {
    position: relative;
    z-index: 2001;
    background-color: #e67e22;
    padding: 5px 10px;
    border-radius: 4px;
    transition: all .3s ease
}

.nav-menu {
    display: flex;
    align-items: center;
    background-color: #fff;
    padding: 40px 30px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, .1)
}

.nav-links {
    list-style: none;
    display: flex;
    align-items: center;
    gap: 30px
}

.nav-links li {
    position: relative
}

.nav-item {
    text-decoration: none;
    color: #036;
    font-size: 16px;
    font-weight: 500;
    padding: 8px 14px;
    transition: all .3s ease
}

.nav-item:hover {
    background-color: #e67e22;
    color: #fff
}

.dropdown-content {
    display: none;
    position: absolute;
    background-color: #fff;
    min-width: 200px;
    box-shadow: 0 8px 16px rgba(0, 0, 0, .1);
    z-index: 1000;
    top: 100%;
    left: 0;
    border-radius: 4px;
    padding: 10px 0
}

.dropdown-content a {
    color: #036;
    padding: 12px 20px;
    text-decoration: none;
    display: block;
    font-size: 15px;
    text-align: left;
    transition: background-color .3s
}

.dropdown-content a:hover {
    background-color: #f4f4f4;
    color: #e67e22
}

.nav-item.active {
    background-color: #e67e22;
    color: #fff;
    padding: 8px 16px;
    border-radius: 2px;
    font-weight: 500
}

.nav-item.active:hover {
    background-color: #d35400
}

.hamburger {
    display: none;
    cursor: pointer
}

.bar {
    display: block;
    width: 25px;
    height: 3px;
    margin: 5px auto;
    background-color: #fff;
    transition: all .3s ease-in-out
}

@media (min-width: 1025px) {
    .dropdown:hover > .dropdown-content,
    .dropdown:focus-within > .dropdown-content,
    .dropdown.active > .dropdown-content {
        display: block;
    }
}

@media (max-width: 1024px) {


    .navbar .container {
        height: 60px;
    }

    .logo-img {
        height: 60px;
    }

    .hamburger {
        display: block;
        z-index: 2000;
        position: relative;
        padding: 10px 25px 10px 10px;
    }

    .hamburger .bar {
        background-color: #fff;
        height: 3px;
        width: 30px;
        margin: 6px auto;
        border-radius: 2px;
    }

    .hamburger.active .bar {
        background-color: #003366 !important;
    }

    .hamburger.active .bar:nth-child(2) {
        opacity: 0;
    }

    .hamburger.active .bar:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }

    .hamburger.active .bar:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }

    .nav-menu {
        position: fixed;
        left: -100%;
        top: 0;
        flex-direction: column;
        background-color: #fff;
        width: 100%;
        height: 100vh;
        justify-content: flex-start;
        align-items: center;
        text-align: center;
        transition: 0.3s;
        box-shadow: none;
        z-index: 1000;
        padding-top: 100px;
        overflow-y: auto;
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-links {
        flex-direction: column;
        gap: 20px;
        width: 100%;
    }

    .nav-links li {
        width: 100%;
    }

    .nav-item {
        display: inline-block;
        padding: 15px 0;
        width: auto;
        font-size: 18px;
    }

    .dropdown-content {
        position: static;
        box-shadow: none;
        background-color: #f9f9f9;
        display: none;
        width: 90%;
        margin: 10px auto;
        border-radius: 30px;
        overflow: hidden;
    }

    .dropdown.active > .dropdown-content {
        display: block;
    }

    .dropdown.active > .nav-item i {
        transform: rotate(180deg);
    }

    .nav-item i {
        transition: transform 0.3s ease;
    }

    .dropdown-content a {
        padding: 15px;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .logo-img {
        height: 50px;
    }
}

body.no-scroll {
    overflow: hidden;
}
/* Nested course navigation uses the existing menu typography and colors. */
.dropdown-toggle,
.submenu-toggle,
.hamburger {
    border: 0;
    background: transparent;
    cursor: pointer;
}

.submenu-toggle {
    color: #036;
    padding: 12px 20px;
    font-size: 15px;
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 15px;
    text-align: left;
}

.submenu-toggle:hover,
.submenu-toggle:focus-visible {
    background-color: #f4f4f4;
    color: #e67e22;
}

.dropdown-submenu {
    position: relative;
}

.submenu-content {
    display: none;
    position: absolute;
    top: 0;
    right: 100%;
    width: 310px;
    padding: 10px 0;
    background: #fff;
    box-shadow: 0 8px 16px rgba(0, 0, 0, .1);
    border-radius: 4px;
}

@media (min-width: 1025px) {
    .dropdown-submenu:hover > .submenu-content,
    .dropdown-submenu:focus-within > .submenu-content,
    .dropdown-submenu.active > .submenu-content {
        display: block;
    }
}

@media (max-width: 1024px) {
    .nav-menu {
        height: 100dvh;
        padding-bottom: 40px;
    }

    .nav-links {
        flex-shrink: 0;
    }

    .dropdown-content {
        min-width: 0;
    }

    .submenu-toggle {
        padding: 15px;
        justify-content: center;
        text-align: center;
    }

    .submenu-content {
        position: static;
        width: 100%;
        box-shadow: none;
        background: #f0f0f0;
        border-radius: 0;
        padding: 0;
    }

    .dropdown-submenu.active > .submenu-content {
        display: block;
    }

    .dropdown-submenu.active > .submenu-toggle i {
        transform: rotate(90deg);
    }

    .submenu-content a {
        overflow-wrap: break-word;
    }
}