/* Top Navigation Bar - Responsive with Blue to Olive Green Theme */
.top-navbar {
    background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 40px;
    position: relative;
}

.nav-logo a {
    color: white;
    text-decoration: none;
    font-size: 1.5em;
    font-weight: bold;
    padding: 18px 0;
    display: block;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 5px;
    margin: 0;
    padding: 0;
}

.nav-menu li a {
    color: white;
    text-decoration: none;
    padding: 18px 25px;
    display: block;
    transition: all 0.3s;
    font-weight: 500;
    border-radius: 5px;
}

.nav-menu li a:hover,
.nav-menu li a.active {
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
}

.nav-menu li a.admin-nav-link {
    background: rgba(255, 255, 255, 0.15);
    border: 2px solid rgba(255, 255, 255, 0.3);
    margin-left: 10px;
}

.nav-menu li a.admin-nav-link:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
}

/* Hamburger Menu */
.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    padding: 10px;
}

.hamburger span {
    width: 30px;
    height: 3px;
    background: white;
    margin: 4px 0;
    transition: 0.3s;
    border-radius: 3px;
}

.hamburger.active span:nth-child(1) {
    transform: rotate(-45deg) translate(-8px, 6px);
}

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

.hamburger.active span:nth-child(3) {
    transform: rotate(45deg) translate(-8px, -6px);
}

/* Responsive Navigation */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }

    .nav-menu {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
        flex-direction: column;
        gap: 0;
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.3s ease;
        box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
    }

    .nav-menu.active {
        max-height: 600px;
    }

    .nav-menu li {
        width: 100%;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }

    .nav-menu li a {
        padding: 15px 20px;
        border-radius: 0;
    }

    .nav-menu li a.admin-nav-link {
        margin-left: 0;
        margin: 10px 20px;
        border-radius: 5px;
    }

    .nav-container {
        padding: 0 20px;
    }
}