:root{color-scheme:dark;--ink:#f2f6f8;--muted:#81909a;--teal:#36ded8;--purple:#b98aff;--line:#1b2329}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:30px}body{margin:0;background:#000;color:var(--ink);font-family:Inter,"Segoe UI",Arial,sans-serif;-webkit-font-smoothing:antialiased}button,a,summary{-webkit-tap-highlight-color:transparent}button{font:inherit;cursor:pointer}a{color:inherit;text-decoration:none}button:focus-visible,a:focus-visible,summary:focus-visible{outline:2px solid var(--teal);outline-offset:6px}[hidden]{display:none!important}
.site-header{height:96px;max-width:1180px;margin:auto;padding:0 42px;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand{font-size:22px;font-weight:600;letter-spacing:-.7px;white-space:nowrap}.brand strong{font-weight:600;color:var(--teal)}.header-controls{display:flex;align-items:center;gap:34px}.history-link{font-size:13px;color:#adb8bf}.history-link:hover{color:#fff}.language-switch{display:flex;gap:14px}.language-switch button{border:0;padding:5px 0;background:none;color:#52616c;font-size:12px;font-weight:650}.language-switch button[aria-pressed=true]{color:var(--ink)}
.test-section{text-align:center;padding:44px 24px 64px;min-height:calc(100svh - 155px)}h1{font-size:clamp(27px,3.4vw,42px);font-weight:550;letter-spacing:-1.2px;margin:0 0 40px}.test-stage{padding-top:75px}.start-button{display:grid;place-items:center;position:relative;width:178px;height:178px;margin:0 auto;border:1.5px solid var(--teal);border-radius:50%;background:#000;color:#fff;font-size:31px;font-weight:450;letter-spacing:-1px;box-shadow:0 0 38px -24px var(--teal);transition:border-color .25s,box-shadow .25s,transform .25s}.start-button:before{content:"";position:absolute;inset:-12px;border:1px solid #122d30;border-radius:50%}.start-button:hover{border-color:#b9fffc;box-shadow:0 0 40px -18px var(--teal);transform:scale(1.025)}.start-button:active{transform:scale(.98)}.test-note{font-size:12px;line-height:1.6;color:var(--muted);margin:44px 0 0}
.measurement-dashboard{max-width:760px;margin:auto}.live-metrics{display:grid;grid-template-columns:1.25fr 1.25fr 1fr 1fr;gap:24px;text-align:left;margin:0 auto 8px;max-width:650px}.metric-label{font-size:12px;color:var(--muted);display:block;margin-bottom:9px}.metric-label i{font-style:normal;font-size:15px;margin-right:3px}.download .metric-label i{color:var(--teal)}.upload .metric-label i{color:var(--purple)}.live-metric strong{font-size:29px;font-weight:500;font-variant-numeric:tabular-nums;letter-spacing:-.9px}.live-metric small{font-size:11px;color:var(--muted);margin-left:6px;white-space:nowrap}
.speed-gauge{position:relative;width:min(100%,540px);aspect-ratio:600/510;margin:8px auto -12px}.gauge-svg{display:block;width:100%;height:100%;overflow:visible}.gauge-arc-track,.gauge-arc{fill:none;stroke-width:6;stroke-linecap:round}.gauge-arc-track{stroke:#152027}.gauge-arc{stroke:url(#arc-gradient);filter:drop-shadow(0 0 6px #36ded833)}.gauge-needle{will-change:transform}.gauge-readout{position:absolute;top:67%;left:15%;right:15%;display:flex;align-items:center;flex-direction:column}.gauge-readout strong{font-size:clamp(48px,7vw,66px);line-height:1.06;font-weight:450;letter-spacing:-3px;font-variant-numeric:tabular-nums}.gauge-readout>span{font-size:12px;color:var(--muted);margin-top:8px}.gauge-readout em{font-size:12px;font-style:normal;color:var(--teal);margin-top:10px;transition:color .6s}
.chart-wrap{max-width:540px;margin:0 auto 20px}.speed-chart{display:block;width:100%;height:76px;overflow:visible}.chart-grid{fill:none;stroke:#1b252b;stroke-width:1;opacity:.7}.chart-line{fill:none;stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round;vector-effect:non-scaling-stroke}.chart-download{stroke:var(--teal)}.chart-upload{stroke:var(--purple)}.chart-legend{display:flex;justify-content:center;gap:25px;margin-top:12px;color:var(--muted);font-size:10px}.chart-legend span:before{content:"";display:inline-block;width:5px;height:5px;border-radius:50%;margin:0 6px 1px 0}.legend-download:before{background:var(--teal)}.legend-upload:before{background:var(--purple)}.gauge-progress{height:2px;max-width:540px;background:#111b20;margin:auto;overflow:hidden}.gauge-progress span{display:block;width:0;height:100%;background:var(--teal);transition:width .7s,background .6s}.gauge-status{color:#8e9da6;font-size:12px;line-height:1.5;min-height:18px;margin:16px 0 10px}.gauge-actions{min-height:42px;display:flex;justify-content:center;align-items:center}.text-button{color:#c4cfd5;font-size:12px;background:none;border:0;padding:10px 0}.text-button:hover{color:var(--teal)}.text-button:disabled{color:#46545e;cursor:default}.outline-button{font-size:12px;color:#e7eff3;background:#000;border:1px solid #38454f;padding:12px 25px;border-radius:30px}.outline-button:hover{border-color:var(--teal)}
.gauge-backlight{fill:none;stroke:url(#arc-gradient);stroke-width:16;opacity:.3;filter:blur(10px)}.gauge-rim{fill:none;stroke:url(#arc-gradient);stroke-width:1;opacity:.2}.gauge-arc-track{stroke:#234351}.gauge-arc{filter:drop-shadow(0 0 5px #52dff688)}#gauge-scale{filter:drop-shadow(0 0 3px #6abfd54d)}#gauge-scale text{fill:#a6c5d2}#gauge-scale line{stroke:#8db9cc}.hub-light{filter:drop-shadow(0 0 3px #57d7ed88)}.gauge-readout strong{text-shadow:0 0 20px #6fc5df1c}
.speed-gauge{--phase-color:var(--teal)}.gauge-backlight,.gauge-rim,.gauge-arc,.gauge-inner-track,.gauge-inner-glow,.gauge-inner-arc,.hub-light{stroke:var(--phase-color);transition:stroke .6s}.gauge-arc{filter:drop-shadow(0 0 5px color-mix(in srgb,var(--phase-color) 60%,transparent))}.gauge-inner-track,.gauge-inner-glow,.gauge-inner-arc{fill:none;stroke-linecap:butt}.gauge-inner-track{stroke-width:12;opacity:.1}.gauge-inner-glow{stroke-width:20;opacity:.28;filter:blur(4px)}.gauge-inner-arc{stroke-width:12;opacity:.9}.hub-light{filter:drop-shadow(0 0 3px color-mix(in srgb,var(--phase-color) 55%,transparent))}.needle-phase-glow{flood-color:var(--phase-color);transition:flood-color .6s}
.result-section,.history-section{max-width:960px;margin:0 auto;padding:35px 0;border-top:1px solid var(--line)}.section-heading{display:flex;align-items:baseline;justify-content:space-between;gap:20px}.section-heading h2{font-size:23px;font-weight:500;letter-spacing:-.5px;margin:0}.section-heading time{font-size:12px;color:var(--muted)}.result-metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:28px;padding:35px 0 10px}.result-metrics>div>span{display:block;color:var(--muted);font-size:12px;margin-bottom:10px}.result-metrics strong{font-size:36px;font-weight:500;font-variant-numeric:tabular-nums;letter-spacing:-1px}.result-metrics small{color:var(--muted);font-size:11px;margin-left:6px}.result-metrics>div:first-child strong{color:var(--teal)}.result-metrics>div:nth-child(2) strong{color:var(--purple)}
.history-section{padding:25px 0 30px}summary{display:flex;align-items:center;gap:12px;cursor:pointer;font-size:15px;list-style:none}summary::-webkit-details-marker{display:none}summary:after{content:"+";margin-left:auto;color:var(--muted);font-size:20px;font-weight:300}details[open] summary:after{content:"−"}#history-count{font-size:11px;color:var(--muted)}.history-toolbar{display:flex;align-items:center;justify-content:space-between;gap:24px;margin-top:18px}.history-toolbar p,#history-empty{font-size:12px;line-height:1.6;color:var(--muted)}.history-scroll{overflow-x:auto}table{width:100%;border-collapse:collapse;text-align:right;font-size:13px;font-variant-numeric:tabular-nums}th,td{padding:17px 12px;border-bottom:1px solid var(--line);white-space:nowrap}th{color:var(--muted);font-weight:400;font-size:11px}th:first-child,td:first-child{text-align:left;padding-left:0}th:last-child,td:last-child{padding-right:0}th small{display:block;font-size:10px;margin-top:4px}.site-footer{max-width:960px;margin:0 auto;padding:18px 0 30px;display:flex;justify-content:space-between;gap:20px;color:#53616a;font-size:11px}
body.is-measuring .site-header{height:68px}body.is-measuring .test-section{padding-top:14px;padding-bottom:32px}body.is-measuring h1{margin-bottom:24px;font-size:30px}body.is-measuring .speed-gauge{width:min(100%,clamp(280px,calc((100svh - 410px)*1.17647),410px))}body.is-measuring .speed-chart{height:52px}body.is-measuring .chart-legend{margin-top:8px}body.is-measuring .chart-wrap{margin-bottom:14px}
@media(min-width:900px){.measurement-dashboard{display:grid;grid-template-columns:140px minmax(280px,440px) 140px;column-gap:20px;align-items:start;max-width:760px}.live-metrics{display:contents}.live-metric{text-align:left;align-self:center;grid-row:1}.live-metric.download{grid-column:1;transform:translateY(-52px)}.live-metric.upload{grid-column:3;transform:translateY(-52px)}.live-metric:nth-child(3){grid-column:1;transform:translateY(52px)}.live-metric:nth-child(4){grid-column:3;transform:translateY(52px)}body.is-measuring .speed-gauge{grid-column:2;grid-row:1;width:min(100%,440px,calc((100svh - 330px)*1.17647));margin-top:0;margin-bottom:0}.chart-wrap,.gauge-progress,.gauge-status,.gauge-actions{grid-column:1/-1;width:100%}.chart-wrap{width:min(100%,600px)}.gauge-progress{max-width:600px}.gauge-status{margin-bottom:6px}}
@media(max-width:1040px){.result-section,.history-section,.site-footer{margin-left:32px;margin-right:32px}}
@media(max-width:600px){.site-header{height:78px;padding:0 24px}.brand{font-size:20px}.header-controls{gap:20px}.history-link{font-size:12px}.language-switch{gap:10px}.test-section{padding:38px 22px 40px;min-height:calc(100svh - 145px)}h1{font-size:29px;margin-bottom:30px}.test-stage{padding-top:72px}.start-button{width:160px;height:160px;font-size:29px}.test-note{font-size:11px;margin-top:40px}.live-metrics{grid-template-columns:1.3fr 1.3fr 1fr 1fr;gap:10px;margin-top:0}.live-metric strong{font-size:23px}.live-metric small{display:block;font-size:10px;margin:3px 0 0}.metric-label{font-size:11px;margin-bottom:8px}.metric-label i{font-size:12px;margin-right:0}.speed-gauge{margin-top:12px;margin-bottom:0}.gauge-readout strong{font-size:51px}.gauge-readout>span{font-size:11px;margin-top:6px}.gauge-readout em{font-size:11px;margin-top:8px}.speed-chart{height:62px}.chart-wrap{margin-bottom:16px}.result-section,.history-section,.site-footer{margin-left:24px;margin-right:24px}.section-heading{display:block}.section-heading h2{font-size:21px}.section-heading time{display:block;margin-top:10px}.result-metrics{grid-template-columns:repeat(2,1fr);gap:28px;padding-top:30px}.result-metrics strong{font-size:33px}.history-toolbar{align-items:baseline;gap:12px}.history-toolbar p{max-width:210px}.history-toolbar button{white-space:nowrap}.site-footer{font-size:10px}.gauge-status{margin-top:13px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before{transition:none!important}}
.site-footer nav{display:flex;flex-wrap:wrap;justify-content:flex-end;gap:12px 20px}.site-footer a:hover{color:var(--teal)}.policy-main{max-width:800px;margin:0 auto;padding:48px 28px 64px}.policy-main h1{font-size:40px;margin-bottom:12px}.policy-date{font-size:12px;color:var(--muted)}.policy-preview{border-left:2px solid #34545d;padding:12px 18px;margin:28px 0 38px;color:#adc2cc;font-size:13px;line-height:1.6}.policy-main section{margin-top:34px}.policy-main h2{font-size:20px;font-weight:550;margin:0 0 12px;letter-spacing:-.3px}.policy-main section p{font-size:15px;line-height:1.8;color:#a4b4bd;margin:0 0 14px}.policy-main a{color:#8bded9;text-decoration:underline;text-underline-offset:3px}.policy-main code{font-size:13px;color:#c2d5de;overflow-wrap:anywhere}.policy-page .site-footer{max-width:744px}.policy-page .site-header>a:last-child{white-space:nowrap}@media(max-width:600px){.site-footer{align-items:baseline}.site-footer nav{gap:12px;max-width:240px}.policy-main{padding:32px 24px 40px}.policy-main h1{font-size:32px}.policy-main section p{font-size:14px}.policy-page .site-header{padding:0 24px;gap:18px}.policy-page .site-header>a:last-child{font-size:11px}}

.app-link-inline{display:inline-flex;align-items:center;justify-content:center;min-height:40px;margin-top:24px;padding:9px 18px;border:1px solid #285457;border-radius:999px;color:#b9f3f0;font-size:12px;font-weight:600;transition:background .2s,border-color .2s,color .2s}
.app-link-inline:hover{background:#103034;border-color:var(--teal);color:#fff}
.app-promo{max-width:960px;margin:0 auto 34px;padding:30px 34px;display:flex;align-items:center;justify-content:space-between;gap:32px;border:1px solid #234145;border-radius:20px;background:linear-gradient(115deg,#071b1d 0%,#071113 50%,#050608 100%)}
.app-promo-copy{max-width:610px}.app-promo-kicker{color:var(--teal);font-size:11px;font-weight:650;letter-spacing:.1em;text-transform:uppercase}.app-promo h2{margin:10px 0;font-size:clamp(21px,2.6vw,29px);font-weight:550;letter-spacing:-.7px;line-height:1.2}.app-promo p{margin:0;color:#a4b5bd;font-size:13px;line-height:1.65}
.app-promo-button{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:12px 22px;border-radius:999px;background:var(--teal);color:#061315;font-size:13px;font-weight:700;white-space:nowrap;box-shadow:0 0 28px #36ded824;transition:background .2s,transform .2s}
.app-promo-button:hover{background:#9ff9f5;transform:translateY(-2px)}
@media(max-width:1040px){.app-promo{margin-left:32px;margin-right:32px}}
@media(max-width:600px){.app-promo{margin:0 24px 30px;padding:25px 23px;display:block}.app-promo h2{font-size:23px}.app-promo p{font-size:12px}.app-promo-button{margin-top:20px;width:100%}.app-link-inline{max-width:100%;font-size:11px}}
.outline-button:disabled{opacity:.55;cursor:wait}.outline-button:disabled:hover{border-color:#38454f}