.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--nav-height);
    background: var(--bg-nav);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border-default);
    z-index: 1000;
}

.nav-inner {
    max-width: var(--content-max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
}

.nav-logo-icon {
    width: 32px;
    height: 32px;
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
}

.nav-logo-icon svg {
    width: 20px;
    height: 20px;
    fill: white;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    list-style: none;
}

.nav-item {
    position: relative;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.nav-link:hover {
    color: var(--text-primary);
    background: rgba(59, 130, 246, 0.1);
}

.nav-link.active {
    color: var(--accent-primary);
    background: rgba(59, 130, 246, 0.15);
}

.nav-link svg {
    width: 18px;
    height: 18px;
    fill: currentColor;
}

.nav-toggle {
    display: none;
    padding: var(--spacing-sm);
    color: var(--text-primary);
}

.nav-toggle svg {
    width: 24px;
    height: 24px;
    fill: currentColor;
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: var(--nav-height);
        left: 0;
        right: 0;
        bottom: 0;
        flex-direction: column;
        align-items: stretch;
        padding: var(--spacing-md);
        background: var(--bg-nav);
        border-top: 1px solid var(--border-default);
        transform: translateX(-100%);
        transition: transform var(--transition-normal);
        gap: var(--spacing-xs);
    }

    .nav-menu.active {
        transform: translateX(0);
    }

    .nav-link {
        padding: var(--spacing-md);
    }

    .nav-toggle {
        display: flex;
    }
}