#speedtest-app{max-width:700px;margin:30px auto;font-family:Arial,sans-serif}.st-card{background:linear-gradient(135deg,#0f172a,#1e293b);color:#fff;border-radius:20px;padding:30px;box-shadow:0 15px 40px rgb(0 0 0 / .25);text-align:center}.st-card h2{margin:0 0 10px;font-size:32px}.st-subtitle{opacity:.8;margin-bottom:25px}.st-gauge-wrap{display:flex;justify-content:center;margin:25px 0}.st-gauge{width:220px;height:220px;border-radius:50%;background:conic-gradient(#22c55e 0deg,#22c55e 0deg,rgb(255 255 255 / .08) 0deg);display:flex;align-items:center;justify-content:center;position:relative;transition:background 0.2s linear;animation:pulse 2s infinite}.st-gauge-inner{width:160px;height:160px;border-radius:50%;background:#0f172a;display:flex;align-items:center;justify-content:center;flex-direction:column}.st-gauge-inner span{font-size:42px;font-weight:700}.st-gauge-inner small{font-size:16px;opacity:.7}.st-status{margin:15px 0 25px;font-size:18px;color:#93c5fd;min-height:28px}.st-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:15px;margin-bottom:25px}.st-box{background:rgb(255 255 255 / .08);border-radius:14px;padding:18px}.st-box span{display:block;font-size:14px;opacity:.75;margin-bottom:6px}.st-box strong{font-size:22px}.st-actions button{background:#22c55e;border:none;color:#fff;padding:14px 26px;font-size:17px;border-radius:10px;cursor:pointer;transition:.2s ease}.st-actions button:hover{background:#16a34a;transform:translateY(-1px)}@keyframes pulse{0%{box-shadow:0 0 0 0 rgb(34 197 94 / .35)}70%{box-shadow:0 0 0 20px #fff0}100%{box-shadow:0 0 0 0 #fff0}}@media (max-width:767px){.st-grid{grid-template-columns:1fr}}