.top-bar {
    background-color: var(--sni-primary);
    color: white;
    font-size: 0.85rem;
    padding: 0.5rem 0;
    position: relative;
    z-index: 5;
    box-shadow: 0 1px 0 var(--sni-primary); 
}
.top-bar a { color: rgba(255,255,255,0.9); }
.top-bar a:hover { color: white; }

.glass-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: var(--glass-bg);
    backdrop-filter: var(--backdrop-blur);
    -webkit-backdrop-filter: var(--backdrop-blur);
    border-bottom: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.navbar-sni {
    display: flex;
    align-items: center;
    padding: 1rem 0;
}

.nav-link-sni {
    color: var(--text-secondary);
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
}
.nav-link-sni.active {
    color: var(--sni-primary);
    text-decoration: none !important;
}
.nav-link-sni:hover {
    color: var(--sni-primary);
    text-decoration: none !important;
    background-color: var(--surface-secondary);
}

/* Theme Toggle */
.theme-toggle {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    width: 38px; height: 38px;
    border-radius: 50%;
    display: grid; place-items: center;
    cursor: pointer;
    transition: all 0.2s;
}
.theme-toggle:hover { 
    border-color: var(--sni-primary); 
    color: var(--sni-primary); 
    transform: scale(1.1);
}