.nav-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.nav-btn-icon {
    width: 12px;
    height: 12px;
    opacity: 0.7;
    transition: transform 0.15s, opacity 0.15s;
}

.nav-btn:hover .nav-btn-icon {
    transform: translate(1px, -1px);
    opacity: 1;
}

.nav-mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    padding: 4px;
    cursor: pointer;
}

.nav-mobile-bar {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--text-secondary);
    border-radius: 1px;
    transition: background 0.15s;
}

.nav-mobile-toggle:hover .nav-mobile-bar {
    background: var(--text-primary);
}

@media (max-width: 680px) {
    .nav-mobile-toggle {
        display: flex;
    }

    nav.nav-open .nav-links {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 56px;
        left: 0;
        right: 0;
        background: var(--bg-base);
        border-bottom: 1px solid var(--border);
        padding: 12px 20px;
        gap: 4px;
        z-index: 90;
    }

    nav.nav-open .nav-links a {
        padding: 10px 12px;
    }
}