/* Navigation Bar Styles - Issue #252 */

nav {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 1rem 2rem;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

nav ul {
    display: flex;
    justify-content: space-between;
    align-items: center;
    list-style: none;
    max-width: 1200px;
    margin: 0 auto;
}

nav ul li {
    margin: 0;
}

nav ul li a {
    color: white;
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    transition: transform 0.3s ease, color 0.3s ease, background-color 0.3s ease;
    display: inline-block;
    position: relative;
}

nav ul li a:hover {
    transform: translateY(-2px);
    color: #f0f0f0;
    background-color: rgba(255, 255, 255, 0.1);
}

nav ul li a:focus {
    outline: 2px solid white;
    outline-offset: 2px;
}

nav ul li a.active {
    border-bottom: 3px solid white;
    padding-bottom: calc(0.75rem - 3px);
}

/* Dropdown Menu Styles */
nav ul li.dropdown {
    position: relative;
}

nav ul li.dropdown .dropdown-toggle::after {
    content: ' \25BC';
    font-size: 0.7em;
    margin-left: 0.3em;
}

nav ul li.dropdown .dropdown-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    background: rgba(26, 26, 26, 0.98);
    backdrop-filter: blur(10px);
    list-style: none;
    padding: 0.5rem 0;
    margin: 0.5rem 0 0 0;
    min-width: 180px;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    z-index: 1000;
}

nav ul li.dropdown:hover .dropdown-menu,
nav ul li.dropdown:focus-within .dropdown-menu {
    display: block;
}

nav ul li.dropdown .dropdown-menu li {
    margin: 0;
    width: 100%;
}

nav ul li.dropdown .dropdown-menu li a {
    padding: 0.75rem 1.5rem;
    display: block;
    color: white;
    border-radius: 0;
}

nav ul li.dropdown .dropdown-menu li a:hover {
    background-color: rgba(255, 255, 255, 0.15);
    transform: none;
}

nav ul li.dropdown .dropdown-menu li a.active {
    background-color: rgba(102, 126, 234, 0.3);
    border-bottom: none;
    padding-bottom: 0.75rem;
}

/* Mobile Navigation - Preserve existing responsive behavior */
@media (max-width: 768px) {
    nav ul {
        position: fixed;
        top: 0;
        right: -100%;
        height: 100vh;
        width: 250px;
        background: rgba(26, 26, 26, 0.98);
        backdrop-filter: blur(10px);
        flex-direction: column;
        align-items: flex-start;
        padding: 4rem 2rem 2rem;
        box-shadow: -2px 0 10px rgba(0, 0, 0, 0.3);
        transition: right 0.3s ease-in-out;
        z-index: 1001;
    }

    nav ul.open {
        right: 0;
    }

    nav ul li {
        width: 100%;
        margin: 0.5rem 0;
    }

    nav ul li a {
        display: block;
        padding: 0.75rem 0;
        width: 100%;
    }

    nav ul li a.active {
        border-bottom: none;
        border-left: 3px solid white;
        padding-left: calc(1.5rem - 3px);
        padding-bottom: 0.75rem;
    }

    /* Mobile dropdown adjustments */
    nav ul li.dropdown .dropdown-menu {
        position: static;
        background: rgba(102, 126, 234, 0.2);
        box-shadow: none;
        margin: 0.5rem 0 0 1rem;
        padding: 0;
    }

    nav ul li.dropdown .dropdown-menu li a {
        padding: 0.5rem 0 0.5rem 1rem;
        font-size: 0.9rem;
    }
}