@media (prefers-color-scheme: dark) {
    body { background:#1a1a2e; color:#ddd; }
    .glass-card, .seo-content, .result-card { background: rgba(30,30,50,0.85); color:#ddd; border-color: rgba(255,255,255,0.1); }
    .form-control { background:#3a3a4e; color:white; border-color:#555; }
}