nav {
    background-color: #2c3e50;
    overflow: hidden;
    height: 55px;
    display: flex;
    justify-content: flex-start;
    align-items: center;
    padding: 0 20px;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    box-shadow: 0px 2px 5px rgba(0, 0, 0, 0.1);
}

.header-left {
    display: flex;
    align-items: center;
}

.header-text {
    color: white;
    font-size: 22px;
    margin-right: 25px;
}

#menu {
    list-style-type: none;
    margin: 0;
    padding: 0;
    display: flex;
    align-items: center;
}

#menu li {
    margin-left: 15px;
}

#menu li a {
    display: block;
    color: #d3d3d3;
    text-align: center;
    padding: 4px 10px;
    text-decoration: none;
    position: relative;
    transition: color 0.2s ease, transform 0.2s ease;
}

/* Simple hover effect */
#menu li a:hover {
    color: #ffffff;
    transform: translateY(-2px);
}

/* Subtle active indicator - small line at bottom */
#menu li a.active {
    color: #ffffff;
}

#menu li a.active::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: #3498db;
    transform-origin: center;
    animation: activeLineIn 0.3s forwards;
}

@keyframes activeLineIn {
    from {
        transform: scaleX(0);
    }
    to {
        transform: scaleX(1);
    }
}

#main-content {
    margin-top: 65px;
}