* { margin: 0; padding: 0; box-sizing: border-box; }
    body { font-family: 'Inter', system-ui, sans-serif; background: #050816; color: #fff; overflow-x: hidden; }
    .tab-btn.active { color:#EF4444; border-color:#EF4444; background:rgba(239,68,68,0.05); }
    .tab-content { display:none; }
    .tab-content.active { display:block; }