nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: rgba(255, 255, 255, 0.95);
    border-bottom: 1px solid var(--border);
    backdrop-filter: blur(12px);
}

nav ul {
    display: flex;
    justify-content: center;
    gap: 0;
    list-style: none;
    max-width: 1080px;
    margin: 0 auto;
}

nav ul li a {
    display: block;
    padding: 20px 22px;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-muted);
    text-decoration: none;
    transition: color 0.2s;
    letter-spacing: -0.01em;
    position: relative;
}

nav ul li a::after {
    content: '';
    position: absolute;
    left: 22px;
    right: 22px;
    bottom: 14px;
    height: 2px;
    border-radius: 999px;
    background: var(--text);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.2s ease;
}

nav ul li a:hover {
    color: var(--text);
}

nav ul li a:hover::after {
    transform: scaleX(1);
}

nav ul li a.active {
    color: var(--text);
}

nav ul li a.active::after {
    transform: scaleX(1);
}

@media (max-width: 768px) {
    nav ul {
        flex-wrap: wrap;
    }

    nav ul li a {
        padding: 14px 14px;
        font-size: 13px;
    }
}