:root{color-scheme:dark;--bg:#07111f;--panel:#0e1b2c;--line:#203148;--muted:#8192a8;--text:#eef6ff;--cyan:#62d8ff;--blue:#5676ff;--mint:#69e2c2;font-family:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif}*{box-sizing:border-box}body{margin:0;min-height:100vh;background:radial-gradient(ellipse at 50% 20%,#142847 0%,#07111f 48%,#050b14 100%);color:var(--text)}.shell{max-width:980px;margin:0 auto;padding:28px 28px 36px}.topbar{display:flex;align-items:center;justify-content:space-between;padding:4px 0 34px;border-bottom:1px solid rgba(139,164,195,.15)}.brand{display:flex;gap:11px;align-items:center;color:var(--text);text-decoration:none;font-size:15px;font-weight:680;letter-spacing:.01em}.brand-mark{width:25px;height:25px;display:flex;align-items:end;gap:3px}.brand-mark i{display:block;width:5px;border-radius:5px;background:var(--cyan);box-shadow:0 0 12px #62d8ff66}.brand-mark i:nth-child(1){height:12px}.brand-mark i:nth-child(2){height:20px}.brand-mark i:nth-child(3){height:16px}.secure{font-size:12px;color:#a9b8ca;display:flex;align-items:center;gap:8px}.secure-dot{width:7px;height:7px;border-radius:50%;background:#68dfb6;box-shadow:0 0 10px #68dfb677}.intro{text-align:center;padding:42px 0 25px}.eyebrow{font-size:10px;letter-spacing:.24em;color:#7f96b1;font-weight:700;margin:0 0 14px}.intro h1{font-size:clamp(34px,5vw,52px);line-height:1.04;letter-spacing:-.045em;margin:0;font-weight:750}.intro h1 span{color:var(--cyan)}.intro-copy{margin:15px 0 0;color:#94a5ba;font-size:14px}.test-card{max-width:660px;margin:0 auto;background:linear-gradient(145deg,rgba(17,32,52,.97),rgba(10,22,37,.97));border:1px solid rgba(120,157,199,.18);border-radius:22px;padding:28px 34px 0;box-shadow:0 22px 70px #0004}.meter-wrap{display:flex;justify-content:center}.meter-ring{width:194px;height:194px;border-radius:50%;display:grid;place-items:center;background:conic-gradient(from 220deg,#27415b 0deg,#29445f 280deg,rgba(41,68,95,.15) 280deg 360deg);position:relative}.meter-ring:before{content:"";position:absolute;inset:8px;border-radius:50%;background:#0d1a2b;border:1px solid #223650}.meter-ring.active{background:conic-gradient(from 220deg,var(--cyan),var(--blue),#27415b 280deg,rgba(41,68,95,.15) 280deg 360deg);animation:spin 2s linear infinite}.meter-inner{position:relative;text-align:center;display:flex;flex-direction:column;align-items:center;gap:4px}.meter-label{font-size:9px;font-weight:750;letter-spacing:.12em;color:#8ea5bd}.meter-value{font-size:43px;font-variant-numeric:tabular-nums;font-weight:650;line-height:1.1;letter-spacing:-.04em}.meter-unit{font-size:11px;color:#94a5ba}.start-button{margin:22px auto 0;min-width:234px;height:48px;border:0;border-radius:999px;background:linear-gradient(100deg,#56d5f5,#6281ff);color:#06111e;font-size:11px;font-weight:800;letter-spacing:.08em;display:flex;align-items:center;justify-content:center;gap:9px;cursor:pointer;box-shadow:0 8px 26px #4e9df333;transition:transform .15s,filter .15s}.start-button:hover:not(:disabled){transform:translateY(-1px);filter:brightness(1.08)}.start-button:disabled{opacity:.48;cursor:not-allowed;box-shadow:none}.button-icon{font-size:16px}.status{text-align:center;color:#94a5ba;font-size:12px;min-height:18px;margin:12px 0 21px}.metrics{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid rgba(139,164,195,.15);padding:19px 4px 20px;gap:10px}.metric{display:flex;align-items:center;justify-content:center;gap:10px}.metric-icon{font-size:18px;font-weight:500}.ping-icon{color:#b9a4ff}.down-icon{color:var(--cyan)}.up-icon{color:var(--mint)}.metric-name{display:block;font-size:8px;letter-spacing:.12em;color:#8192a8;font-weight:750;margin-bottom:4px}.metric strong{font-size:15px;font-variant-numeric:tabular-nums;font-weight:630}.metric small{font-size:10px;color:#a0afc2;font-weight:500}.captcha-card{max-width:660px;margin:15px auto 0;padding:17px 20px 14px;background:rgba(10,22,37,.82);border:1px solid rgba(120,157,199,.15);border-radius:16px}.captcha-card[hidden]{display:none}.captcha-heading{display:flex;gap:12px;align-items:center}.captcha-shield{width:32px;height:32px;border:1px solid #31546b;border-radius:10px;display:grid;place-items:center;color:var(--mint);font-weight:800}.captcha-heading h2{font-size:13px;margin:0 0 4px;font-weight:650}.captcha-heading p{font-size:11px;color:#91a2b7;margin:0}.captcha-controls{display:flex;align-items:center;gap:9px;margin-top:14px}.captcha-image{width:132px;height:44px;border-radius:8px;background:#101b2c}.refresh-button{height:38px;width:38px;border:1px solid #283c54;border-radius:9px;background:#122137;color:#c5d6e8;font-size:21px;cursor:pointer}.captcha-controls input{min-width:90px;flex:1;height:38px;border:1px solid #30445c;border-radius:9px;background:#091421;color:var(--text);padding:0 11px;font-size:13px;letter-spacing:.18em;outline:none}.captcha-controls input:focus{border-color:var(--cyan);box-shadow:0 0 0 3px #62d8ff1f}.captcha-controls input::placeholder{color:#63768d}.verify-button{height:38px;padding:0 15px;border:0;border-radius:9px;background:#d9e9f8;color:#101a27;font-size:9px;font-weight:800;letter-spacing:.06em;cursor:pointer}.verify-button:disabled{opacity:.5}.captcha-error{color:#ff9eab;font-size:11px;min-height:14px;margin:6px 0 0}.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}footer{max-width:660px;margin:15px auto 0;display:flex;justify-content:space-between;gap:14px;color:#71849c;font-size:10px;line-height:1.5}@keyframes spin{to{transform:rotate(360deg)}}@media(max-width:600px){.shell{padding:18px 15px 25px}.topbar{padding-bottom:22px}.secure{font-size:10px}.intro{padding:33px 0 22px}.test-card{padding:23px 16px 0;border-radius:18px}.meter-ring{width:174px;height:174px}.metrics{gap:2px}.metric{gap:6px}.metric-name{font-size:7px}.metric strong{font-size:13px}.captcha-card{padding:15px 13px}.captcha-controls{gap:6px}.captcha-image{width:104px}.refresh-button{width:34px}.captcha-controls input{min-width:65px;padding:0 7px}.verify-button{padding:0 9px;font-size:8px}footer{flex-direction:column;gap:3px}}