@font-face{font-family:"Noto Sans";src:url("/assets/NotoSans-Regular.woff2") format("woff2");font-style:normal;font-weight:400;font-display:swap}
@font-face{font-family:"Noto Sans";src:url("/assets/NotoSans-Bold.woff2") format("woff2");font-style:normal;font-weight:700;font-display:swap}
:root{color-scheme:light;--page:#f3f7fc;--white:#fff;--ink:#172b4c;--muted:#526581;--blue:#254fd3;--blue-dark:#193da8;--teal:#007c78;--line:#d5dfed;--focus:#de6c00;--font:"Noto Sans",sans-serif}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:24px}body{margin:0;background:var(--page);color:var(--ink);font-family:var(--font);font-size:15px;line-height:1.65}button,input,select{font:inherit}button,a,input,select,summary{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.47}a{color:var(--blue);text-underline-offset:4px}a:hover{color:var(--blue-dark)}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid var(--focus);outline-offset:4px}h1,h2,h3,p{margin-top:0}h1,h2,h3{font-weight:700}svg{display:block}.shell{width:min(1180px,calc(100% - 72px));margin-inline:auto}.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}.skip-link{position:absolute;left:20px;top:-100px;padding:12px;background:white;z-index:20}.skip-link:focus{top:10px}
.site-header{display:flex;align-items:center;justify-content:space-between;min-height:108px;border-bottom:1px solid var(--line)}.brand{display:inline-flex;gap:10px;align-items:center;color:var(--blue);text-decoration:none;font-size:29px;font-weight:700;letter-spacing:-1.3px}.brand-dot{color:var(--teal)}.site-header nav{display:flex;gap:32px;align-items:center}.site-header nav a{text-decoration:none;color:var(--muted);font-size:14px}.site-header nav a:hover,.site-header nav .nav-current{color:var(--blue)}.nav-current{font-weight:700}
.test-workspace{display:grid;grid-template-columns:minmax(0,.92fr) minmax(0,1.2fr);align-items:start;gap:64px;padding:58px 0 44px}.intro-kicker{font-size:13px;color:var(--teal);margin-bottom:16px;display:flex;align-items:center;gap:7px}.connection-symbol{font-size:25px;line-height:1}.test-intro h1{font-size:clamp(34px,3.8vw,49px);letter-spacing:-1.65px;line-height:1.2;margin-bottom:20px}.intro-copy{max-width:410px;font-size:16px;color:var(--muted);margin-bottom:27px}.test-controls{max-width:420px}.field-label{display:block;font-size:13px;font-weight:700;margin-bottom:7px}#test-mode{width:100%;height:48px;border:1px solid #b8c8df;border-radius:9px;padding:0 35px 0 13px;color:var(--ink);background:var(--white);font-size:14px}.field-help{font-size:12px;line-height:1.6;color:var(--muted);margin:8px 0 18px;min-height:38px}.consent-label{display:flex;gap:10px;align-items:flex-start;font-size:12px;line-height:1.65;cursor:pointer}.consent-label input{accent-color:var(--blue);width:18px;height:18px;margin:2px 0 0;flex:none}.privacy-link{padding-left:28px;font-size:12px;margin:5px 0 22px}.test-actions{display:flex;gap:12px}.button{display:inline-flex;align-items:center;justify-content:center;gap:9px;border:0;min-height:50px;border-radius:10px;padding:0 26px;font-weight:700;font-size:14px;transition:background .16s ease,transform .16s ease}.button:not(:disabled):active{transform:translateY(1px)}.button-primary{background:var(--blue);color:white;flex:1}.button-primary:hover:not(:disabled){background:var(--blue-dark)}.button-secondary{border:1px solid #b8c8df;background:transparent;color:var(--ink);padding-inline:20px}.button-secondary:hover:not(:disabled){background:white}.start-hint{font-size:11px;color:var(--muted);margin:11px 0 0}
.instrument{background:var(--blue);color:white;border-radius:24px;padding:25px 30px 20px;margin-top:4px;overflow:hidden;box-shadow:0 18px 42px -27px #1c43b07a}.instrument-top{display:flex;justify-content:space-between;gap:12px;align-items:center;font-size:11px}.target-label{display:flex;align-items:center;gap:7px;color:#e0e8ff}.phase-label{background:#fff2;border:1px solid #ffffff30;padding:4px 9px;border-radius:6px;color:white;white-space:nowrap}.readout{display:flex;align-items:baseline;justify-content:center;gap:9px;padding:41px 0 0;min-height:146px}.main-value{font-size:80px;font-weight:700;line-height:1.15;letter-spacing:-4px;font-variant-numeric:tabular-nums}.main-unit{font-size:15px;color:#d9e3ff}.readout-caption{font-size:11px;color:#d9e3ff;text-align:center;margin:3px 0 27px}.chart-wrap{width:100%}#speed-chart{width:100%;height:146px;overflow:visible}.chart-grid{color:#ffffff19;stroke-width:1}#chart-line{color:#a8f1e0}.chart-labels{display:flex;justify-content:space-between;color:#d9e3ff;font-size:10px;margin-top:6px}#progress-bar{display:block;width:100%;height:4px;border:0;background:#fff3;border-radius:10px;margin-top:24px;overflow:hidden}#progress-bar::-webkit-progress-bar{background:#fff3}#progress-bar::-webkit-progress-value{background:#a8f1e0;border-radius:10px}#progress-bar::-moz-progress-bar{background:#a8f1e0;border-radius:10px}.session-stats{display:flex;justify-content:space-between;gap:10px;font-size:10px;color:#d9e3ff;margin-top:12px}.session-stats strong{color:white;font-weight:400;margin-left:5px;font-variant-numeric:tabular-nums}.instrument-status{display:flex;align-items:flex-start;gap:8px;border-top:1px solid #ffffff26;margin-top:19px;padding-top:15px;min-height:51px}.status-dot{width:6px;height:6px;border-radius:50%;background:#a8f1e0;flex:none;margin-top:7px}#test-status{font-size:11px;line-height:1.65;color:#f2f5ff;margin:0;overflow-wrap:anywhere}
.section-heading{display:flex;align-items:center;justify-content:space-between;gap:18px;margin-bottom:18px}.section-heading h2{font-size:19px;letter-spacing:-.4px;margin:0}.section-heading p{font-size:12px;color:var(--muted);margin:3px 0 0}.text-button{display:inline-flex;align-items:center;gap:7px;min-height:38px;border:0;background:transparent;padding:6px 0;color:var(--blue);font-size:12px}.text-button:hover:not(:disabled){text-decoration:underline;text-underline-offset:3px}.metrics{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));margin:0;background:var(--white);border:1px solid var(--line);border-radius:14px;padding:25px 0}.metric{padding:0 17px;border-left:1px solid var(--line)}.metric:first-child{border-left:0}.metric dt{font-size:11px;color:var(--muted);min-height:40px}.metric dd{margin:4px 0 0;display:flex;align-items:baseline;gap:5px;font-size:27px;font-weight:700;line-height:1.3;letter-spacing:-.7px;font-variant-numeric:tabular-nums}.metric dd small{color:var(--muted);font-size:10px;font-weight:400;letter-spacing:0}.metric p{font-size:9px;color:var(--muted);line-height:1.6;margin:7px 0 0}.metric-english{display:block;padding-left:20px;font-size:9px;color:var(--muted)}.metric-icon{color:var(--blue);font-size:17px;line-height:1;margin-right:4px}.upload-icon{color:var(--teal)}.metric-major dd{color:var(--blue)}.metric-major:nth-child(2) dd{color:var(--teal)}.result-notes{color:var(--muted);font-size:12px;margin:13px 0 0;max-width:900px;overflow-wrap:anywhere}.history-section{margin-top:42px;padding-bottom:37px;border-bottom:1px solid var(--line)}.history-list{overflow-x:auto}.empty-history{margin:0;background:#eaf0f8;border-radius:9px;padding:20px 23px;font-size:13px;color:var(--muted)}.history-list table{width:100%;border-collapse:collapse;font-size:12px;background:var(--white);border-radius:8px;overflow:hidden}.history-list th,.history-list td{text-align:left;padding:13px 14px;border-bottom:1px solid var(--line);white-space:nowrap}.history-list th{font-size:11px;color:var(--muted);font-weight:400;background:#eaf0f8}.history-item{display:flex;gap:16px;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line);padding:14px 4px;font-size:13px}.history-item time{color:var(--muted);font-size:12px}
.learn-section{display:grid;grid-template-columns:minmax(0,.82fr) minmax(0,1.5fr);gap:90px;padding:48px 0 54px}.learn-intro h2{font-size:31px;line-height:1.3;letter-spacing:-.8px;margin-bottom:18px}.learn-intro p{color:var(--muted);font-size:14px;max-width:310px}.learn-intro>a{font-size:12px}.questions details{border-bottom:1px solid var(--line);padding:0 0 15px;margin-bottom:17px}.questions details:last-child{margin-bottom:0}.questions summary{cursor:pointer;font-size:14px;font-weight:700;list-style:none;padding:0 25px 0 0;position:relative}.questions summary::-webkit-details-marker{display:none}.questions summary::after{content:"+";position:absolute;right:0;top:-2px;font-weight:400;font-size:20px;color:var(--blue)}.questions details[open] summary::after{content:"−"}.questions details p{font-size:13px;line-height:1.8;color:var(--muted);margin:12px 0 0}.questions details p:last-child{margin-bottom:2px}.noscript-note{padding:20px;border:1px solid #c77521;background:#fff4e5;border-radius:9px}.site-footer{border-top:1px solid var(--line);padding-block:24px 33px;font-size:12px;color:var(--muted);display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}.site-footer p{margin:0}.site-footer strong{color:var(--ink);font-weight:700}.site-footer>div{display:flex;gap:22px}.site-footer a{text-decoration:none}.footer-note{flex-basis:100%;font-size:10px;margin-top:3px!important}
@media(min-width:1500px){.test-workspace{padding-top:72px;padding-bottom:54px}}
@media(max-width:1080px){.test-workspace{gap:35px}.shell{width:calc(100% - 48px)}.test-intro h1{font-size:39px}.instrument{padding-inline:23px}.metrics{grid-template-columns:repeat(3,minmax(0,1fr));row-gap:24px}.metric{padding-inline:22px}.metric:nth-child(4){border-left:0}.metric dt{min-height:32px}.metric-english{display:inline;padding-left:4px}.learn-section{gap:45px}.metric dd{font-size:31px}.metric p{font-size:10px}}
@media(max-width:760px){.site-header{min-height:82px}.site-header nav{gap:18px}.site-header nav a{font-size:12px}.brand{font-size:26px}.brand svg{width:31px;height:31px}.test-workspace{grid-template-columns:1fr;gap:30px;padding-top:32px}.test-intro h1{font-size:39px}.intro-copy{max-width:550px}.test-controls{max-width:none}.field-help{min-height:0}.instrument{margin:0;padding:22px 25px 19px}.readout{padding-top:28px;min-height:120px}.main-value{font-size:76px}.readout-caption{margin-bottom:18px}#speed-chart{height:134px}.instrument-status{min-height:0}.metrics{grid-template-columns:repeat(2,minmax(0,1fr));padding-block:23px;row-gap:24px}.metric:nth-child(3),.metric:nth-child(5){border-left:0}.metric:nth-child(4){border-left:1px solid var(--line)}.metric dt{min-height:0}.metric dd{margin-top:8px}.metric-english{display:inline}.learn-section{grid-template-columns:1fr;gap:22px;padding-block:36px}.learn-intro h2 br{display:none}.learn-intro h2{font-size:25px;margin-bottom:12px}.learn-intro p{max-width:550px}.section-heading h2{font-size:17px}.history-section{margin-top:31px}.site-footer>div{gap:18px}.history-list table{min-width:550px}}
@media(max-width:420px){.shell{width:calc(100% - 32px)}.site-header nav{gap:12px}.site-header nav a{font-size:11px}.brand{gap:6px;font-size:24px}.test-intro h1{font-size:36px}.intro-copy{font-size:15px}.intro-kicker{font-size:12px}.instrument{padding-inline:19px}.main-value{font-size:68px}.metric{padding-inline:16px}.section-heading{gap:8px}.text-button{font-size:10px}.text-button svg{width:14px}.session-stats{font-size:9px}.target-label{font-size:10px}.phase-label{font-size:10px}.site-footer{font-size:11px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation:none!important;transition:none!important}}
.payload-note{font-size:9px;line-height:1.65;color:#d9e3ff;margin:8px 0 0}.history-list{list-style:none;padding:0;margin:0}.history-item strong{font-variant-numeric:tabular-nums;white-space:nowrap}.history-item>span:last-child{white-space:nowrap}@media(max-width:600px){.history-item{display:grid;grid-template-columns:1fr auto;gap:5px 14px;font-size:12px}.history-item time{font-size:11px}.history-item>span:nth-child(2){font-size:11px;text-align:right}.history-item>span:last-child{text-align:right}}