/* ✅ 14 — Active Tab State (Emerald Green Gradient) */
.tab-btn.active{ background:linear-gradient(135deg, #059669 0%, #047857 50%, #022c22 100%); color:#ffffff; border-color:#facc15;
    box-shadow:0 8px 20px -2px rgba(5,150,105,.5), 0 2px 6px rgba(0,0,0,.3), inset 0 1px 0 rgba(255,255,255,.3), inset 0 -8px 12px -8px rgba(0,0,0,.4); }