@layer base,components,responsive;@layer base{:root{--paper:#f6f7f2;--white:#fff;--ink:#193c30;--text:#31483d;--muted:#647269;--line:#dfe5db;--lime:#d6ef82;--green:#205f43;--soft:#eaf0e5;--orange:#fae5cf;--purple:#e8e3f3;--radius:20px;color-scheme:light;font-family:Inter,Segoe UI,Arial,sans-serif;font-synthesis:none;line-height:1.6;color:var(--text);background:var(--paper)}*{box-sizing:border-box}body{margin:0}a{color:inherit;text-underline-offset:4px}button,input,select,textarea{font:inherit}button,a,input,select{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{cursor:wait;opacity:.6}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,[tabindex]:focus-visible{outline:3px solid #39764a;outline-offset:4px}h1,h2,h3,p{margin-top:0}h1,h2,h3{color:var(--ink);line-height:1.15;letter-spacing:-.04em}h1{font-size:clamp(32px,4vw,56px);font-weight:650}h2{font-size:30px;font-weight:630}h3{font-size:20px;font-weight:620}p{margin-bottom:1em}svg{display:block}button[hidden],[hidden]{display:none!important}img,video,canvas{max-width:100%}::selection{background:var(--lime);color:var(--ink)}.container{max-width:1248px;margin:auto;padding:0 36px}.skip-link{position:absolute;top:-100px;left:20px;z-index:30;background:var(--lime);padding:12px}.skip-link:focus{top:10px}.icon{width:24px;height:24px;flex-shrink:0;stroke:currentColor;stroke-width:1.7;fill:none;stroke-linecap:round;stroke-linejoin:round}.fine-print{font-size:13px;color:var(--muted);line-height:1.65}.eyebrow{display:flex;align-items:center;gap:8px;font-size:12px;font-weight:650;text-transform:uppercase;letter-spacing:.11em;color:var(--green)}.dot{width:7px;height:7px;background:var(--green);border-radius:50%;display:inline-block}.tag{font-size:12px;font-weight:550;background:var(--soft);border-radius:7px;padding:5px 9px;display:inline-flex;align-items:center;gap:6px}.button{display:inline-flex;align-items:center;justify-content:center;gap:9px;border:1px solid transparent;border-radius:11px;padding:12px 19px;min-height:46px;font-size:14px;font-weight:600;text-decoration:none;line-height:1.3;transition:background .16s,transform .16s}.primary{color:#fff;background:var(--ink)}.primary:hover{background:#2b5d44}.secondary{background:#fff;border-color:var(--line);color:var(--ink)}.secondary:hover{background:var(--soft)}.lime-button{background:var(--lime);color:var(--ink)}.text-link{font-size:14px;font-weight:600;text-decoration:none;display:inline-flex;gap:7px;align-items:center}.text-link:hover{text-decoration:underline}.section{padding:34px 0}.section-heading{display:flex;justify-content:space-between;align-items:end;gap:20px;margin-bottom:24px}.section-heading h2{margin:0}.section-heading p{font-size:14px;color:var(--muted);margin:8px 0 0}.section-heading .text-link{flex-shrink:0}.breadcrumbs{display:flex;align-items:center;gap:8px;flex-wrap:wrap;font-size:12px;color:var(--muted);margin:28px 0}.breadcrumbs a{text-decoration:none}.breadcrumbs a:hover{text-decoration:underline}.breadcrumbs span:last-child{color:var(--text)}}@layer components{.catalog-layout>*{min-width:0}.pad-button.seen{background:var(--soft);border-color:#adc796}:root{--muted:#5c6c61}[data-tester][data-engine=network]:not([data-tool=cgnat]):not([data-tool=public-ip]){min-height:515px}[data-tester][data-engine=input]{min-height:600px}[data-tester][data-engine=gamepad]{min-height:670px}[data-tester][data-engine=media]{min-height:500px}[data-tester][data-engine=sound]{min-height:380px}[data-tester][data-tool=refresh-rate]{min-height:415px}.probe-log{font-size:12px;border-bottom:1px solid var(--line);padding:10px 0;color:var(--muted)}.probe-log summary{cursor:pointer}.probe-log>div{max-height:180px;overflow:auto;padding:8px}.probe-log p{display:flex;justify-content:space-between;gap:15px;margin:5px 0}.test-detail h3{font-size:17px;letter-spacing:-.02em}.result-meta{background:var(--soft);padding:10px;border-radius:8px;font-size:12px}.history-items small{display:block;color:var(--muted);font-size:11px;margin-top:3px}.site-header{height:86px;border-bottom:1px solid var(--line);background:var(--paper)}.header-inner{height:100%;display:flex;align-items:center;gap:45px}.logo{display:inline-flex;align-items:center;gap:9px;text-decoration:none;color:var(--ink);font-size:24px;font-weight:760;letter-spacing:-1px}.logo-icon{width:33px;height:33px;background:var(--ink);color:var(--lime);border-radius:10px;display:grid;place-items:center}.logo-icon .icon{width:23px;height:23px}.main-nav{display:flex;align-items:center;gap:29px}.main-nav a{font-size:14px;text-decoration:none;color:var(--muted);font-weight:550}.main-nav a:hover,.main-nav a[aria-current]{color:var(--ink)}.header-note{margin-left:auto;font-size:12px;color:var(--muted);display:flex;align-items:center;gap:7px}.menu-toggle{display:none;border:0;background:transparent;padding:10px}.hero{display:grid;grid-template-columns:1.2fr 1fr;gap:56px;padding:65px 0 50px;align-items:center}.hero h1{font-size:clamp(38px,4.5vw,60px);line-height:1.06;margin:23px 0;max-width:640px;font-weight:620;letter-spacing:-.053em}.hero h1 em{font-style:normal;color:#75816c}.hero-copy>p{font-size:16px;line-height:1.8;max-width:460px;color:var(--muted)}.hero-actions{display:flex;align-items:center;gap:20px;margin-top:28px}.hero-note{font-size:12px;color:var(--muted);margin-top:18px;display:flex;align-items:center;gap:6px}.hero-note .icon{width:14px;height:14px}.hero-visual{position:relative;padding:24px 0 16px 22px}.demo-card{position:relative;background:var(--ink);border-radius:24px;padding:28px 27px 23px;color:#e6f0e7;box-shadow:0 16px 30px -25px #133e39;transform:rotate(-2deg)}.demo-head{display:flex;align-items:center;justify-content:space-between;font-size:12px;color:#b4c9bb}.demo-head span{display:flex;align-items:center;gap:7px}.demo-head .dot{background:var(--lime)}.demo-title{font-size:20px;color:#fff;letter-spacing:-.03em;margin-top:20px}.demo-values{display:flex;gap:32px;margin:17px 0 0}.demo-values small{display:block;font-size:10px;color:#9eb6a7}.demo-values strong{font-size:27px;font-weight:500;letter-spacing:-.05em}.demo-values strong i{font-size:11px;font-style:normal;color:#9eb6a7;margin-left:5px}.demo-chart{height:140px;width:100%;margin-top:12px}.demo-bottom{display:flex;justify-content:space-between;font-size:10px;color:#9eb6a7}.floating-note{position:absolute;right:-10px;bottom:-4px;display:flex;align-items:center;gap:10px;background:var(--lime);border:5px solid var(--paper);border-radius:16px;padding:13px 17px;transform:rotate(2deg);font-size:12px;color:var(--ink)}.floating-note .icon{width:20px;height:20px}.demo-disclaimer{text-align:right;color:var(--muted);font-size:10px;margin:24px 18px 0}.quick-symptoms{border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:19px 0;display:flex;gap:12px;align-items:center;flex-wrap:wrap;margin-bottom:10px}.quick-symptoms>span{font-size:12px;color:var(--muted);margin-right:8px}.symptom{font-size:12px;display:flex;align-items:center;gap:7px;padding:7px 11px;border:1px solid var(--line);background:transparent;border-radius:30px;color:var(--text);text-decoration:none}.symptom:hover{background:var(--soft)}.symptom .icon{width:15px;height:15px}.catalog-layout{display:grid;grid-template-columns:184px 1fr;gap:30px}.catalog-sidebar{padding-top:3px}.sidebar-label{font-size:10px;text-transform:uppercase;letter-spacing:.12em;color:var(--muted);margin:0 0 13px 12px}.category-filters{display:grid;gap:5px}.category-filter{border:0;background:transparent;border-radius:10px;display:flex;align-items:center;gap:10px;text-align:left;padding:12px;font-size:13px;color:var(--muted);min-height:46px}.category-filter .icon{width:18px;height:18px}.category-filter small{margin-left:auto;font-size:10px}.category-filter[aria-pressed=true]{background:var(--ink);color:#fff}.category-filter:hover:not([aria-pressed=true]){background:var(--soft)}.sidebar-help{margin-top:27px;border-top:1px solid var(--line);padding:24px 10px;font-size:12px}.sidebar-help .icon{margin-bottom:12px}.sidebar-help strong{display:block;color:var(--ink);font-weight:600}.sidebar-help p{color:var(--muted);margin:8px 0}.search-row{display:flex;gap:16px;align-items:center;margin-bottom:20px}.search-box{position:relative;flex:1}.search-box .icon{position:absolute;left:15px;top:14px;width:19px;height:19px;color:var(--muted)}.search-box input{width:100%;height:48px;padding:10px 50px 10px 44px;border:1px solid var(--line);border-radius:12px;background:#fff;color:var(--ink);font-size:14px}.search-box kbd{position:absolute;right:15px;top:12px;border:1px solid var(--line);border-radius:5px;font-size:12px;padding:0 6px;color:var(--muted)}.result-count{font-size:12px;color:var(--muted);white-space:nowrap}.tool-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;scroll-margin-top:24px}.tool-card{display:flex;flex-direction:column;position:relative;min-width:0;min-height:225px;padding:21px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);text-decoration:none;transition:border-color .2s,box-shadow .2s,transform .2s}.tool-card:hover{border-color:#9eae99;box-shadow:0 5px 15px #16352908;transform:translateY(-2px)}.tool-card.featured{background:#eaf0df;border-color:#cfdabb}.card-top{display:flex;justify-content:space-between;align-items:start;margin-bottom:19px}.tool-icon{display:grid;place-items:center;width:40px;height:40px;border:1px solid #e0e8d7;border-radius:12px;background:var(--soft);color:var(--green)}.tool-card[data-category=devices] .tool-icon{background:var(--orange);border-color:#f1dcc5;color:#98532e}.tool-card[data-category=audio] .tool-icon{background:var(--purple);border-color:#ded8e9;color:#72558e}.tool-card[data-category=screen] .tool-icon{background:#dfeef0;border-color:#d0e3e6;color:#3b6971}.card-arrow{color:#96a38f;font-size:18px;line-height:1}.featured-label{font-size:9px;font-weight:600;padding:4px 7px;background:#d8e7bb;border-radius:6px;color:#45672d}.tool-card h3{font-size:17px;line-height:1.3;letter-spacing:-.025em;margin-bottom:9px;max-width:220px}.tool-card p{font-size:12px;line-height:1.65;color:var(--muted);margin-bottom:19px}.card-bottom{display:flex;justify-content:space-between;align-items:center;margin-top:auto;gap:8px;font-size:10px;color:var(--muted)}.card-duration{display:flex;gap:4px;align-items:center}.card-duration .icon{width:12px;height:12px}.empty-state{padding:40px;text-align:center;border:1px dashed var(--line);border-radius:20px}.empty-state h3{font-size:22px}.why-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:30px;background:var(--soft);padding:29px;border-radius:20px;margin:22px 0}.why-item{display:flex;gap:14px;font-size:12px;color:var(--muted)}.why-item .icon{width:22px;color:var(--green);margin-top:3px}.why-item strong{display:block;font-size:14px;color:var(--ink);margin-bottom:5px}.why-item p{margin:0}.article-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}.article-card{border-top:1px solid var(--line);padding-top:20px;text-decoration:none;display:flex;flex-direction:column;min-width:0}.article-art{height:135px;border-radius:15px;background:#e4ebd9;position:relative;overflow:hidden;margin-bottom:18px;display:flex;align-items:center;justify-content:center;color:#6f8c56}.article-art .icon{width:63px;height:63px;stroke-width:1.1;position:relative;z-index:1}.article-art:before,.article-art:after{content:"";position:absolute;width:160px;height:160px;border:1px solid #bfcfb5;border-radius:50%;left:calc(50% - 80px);top:calc(50% - 80px)}.article-art:after{width:245px;height:245px;left:calc(50% - 122px);top:calc(50% - 122px)}.article-card[data-category=devices] .article-art{background:#f0e4d4;color:#a2784b}.article-card[data-category=devices] .article-art:before,.article-card[data-category=devices] .article-art:after{border-color:#d9c5aa}.article-card[data-category=audio] .article-art{background:var(--purple);color:#7a688a}.article-card[data-category=screen] .article-art{background:#e0ecec;color:#4f8188}.article-meta{display:flex;gap:10px;font-size:11px;color:var(--muted);margin-bottom:10px}.article-card h3{font-size:20px;line-height:1.3;letter-spacing:-.03em;margin-bottom:10px}.article-card:hover h3{text-decoration:underline;text-underline-offset:4px}.article-card p{font-size:13px;color:var(--muted);margin-bottom:13px}.article-card .text-link{margin-top:auto;font-size:12px}.history-panel{border:1px solid var(--line);padding:22px;border-radius:18px;margin:26px 0}.history-panel h2{font-size:20px}.history-items{display:grid;gap:8px}.history-items a{display:flex;justify-content:space-between;gap:15px;font-size:13px;text-decoration:none}.history-items time{color:var(--muted);font-size:12px}.history-panel button{margin-top:15px}.site-footer{border-top:1px solid var(--line);margin-top:55px;padding:38px 0 25px}.footer-main{display:flex;justify-content:space-between;gap:40px}.footer-brand p{max-width:280px;font-size:12px;color:var(--muted);margin:12px 0}.footer-links{display:flex;gap:55px}.footer-links div{display:flex;flex-direction:column;gap:9px}.footer-links strong{font-size:12px;color:var(--ink);margin-bottom:3px}.footer-links a{font-size:12px;text-decoration:none;color:var(--muted)}.footer-links a:hover{text-decoration:underline}.footer-bottom{display:flex;justify-content:space-between;gap:20px;border-top:1px solid var(--line);padding-top:19px;margin-top:25px;font-size:11px;color:var(--muted)}.footer-bottom button{font-size:11px;border:0;background:none;color:inherit;padding:0}.page-heading{max-width:820px;margin:32px 0}.page-heading h1{margin:15px 0 18px}.page-heading>p{font-size:17px;color:var(--muted);max-width:730px}.page-title-meta{display:flex;align-items:center;gap:14px;font-size:12px;color:var(--muted)}.page-title-meta .icon{width:16px;height:16px}.tool-page-layout{display:grid;grid-template-columns:minmax(0,1fr) 260px;gap:30px;align-items:start}.tool-main{min-width:0}.tester-card{border:1px solid #cfd9cb;background:#fff;border-radius:22px;padding:27px;margin:0 0 25px;scroll-margin-top:20px;min-width:0}.tester-card-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:25px;border-bottom:1px solid var(--line);padding-bottom:18px}.tester-card-head h2{font-size:17px;letter-spacing:-.02em;margin:0;display:flex;align-items:center;gap:10px}.tester-card-head .tag{font-size:10px;background:transparent;padding:0}.test-toolbar{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px;margin:0 0 20px}.test-toolbar label{display:flex;align-items:center;flex-wrap:wrap;gap:9px;font-size:12px;color:var(--muted)}select,input[type=number],.nat-form input{min-height:42px;border:1px solid var(--line);border-radius:9px;background:var(--paper);color:var(--ink);padding:8px 11px;max-width:100%;font-size:13px}.node-label{font-size:11px;color:var(--muted)}.metrics{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:13px;margin-bottom:20px}.metric{border-radius:13px;background:var(--paper);padding:16px 14px;min-width:0}.metric>span{font-size:11px;color:var(--muted);display:block;margin-bottom:5px}.metric strong{font-size:27px;letter-spacing:-.045em;font-weight:550;color:var(--ink);display:block;overflow-wrap:anywhere;line-height:1.2}.metric small{font-size:11px;font-weight:400;letter-spacing:0;margin-left:5px;white-space:nowrap}.test-chart{width:100%;height:200px;background:#fbfcf9;border:1px solid var(--line);border-radius:12px;padding:8px}.test-status{font-size:13px;color:var(--muted);margin:16px 0;min-height:24px}.test-status[data-state=error]{color:#9e3929;background:#fff1eb;padding:12px;border-radius:9px}.test-status[data-state=success]{color:#235d3d}.test-status[data-state=running]{color:var(--green)}.test-status[data-state=paused]{color:#8b621f}.test-progress{display:block;width:100%;height:5px;border:0;border-radius:5px;background:var(--soft);accent-color:var(--green);margin-bottom:20px}.test-progress::-webkit-progress-bar{background:var(--soft);border-radius:5px}.test-progress::-webkit-progress-value{background:var(--green);border-radius:5px}.test-actions{display:flex;gap:10px;flex-wrap:wrap}.test-detail{margin-top:20px;font-size:13px}.test-detail:empty{margin:0}.tool-sidebar{position:sticky;top:25px}.help-card{padding:23px;background:var(--soft);border-radius:18px;margin-bottom:20px}.help-card h2{font-size:17px;margin-bottom:17px}.help-card ol{padding-left:18px;font-size:12px;margin:0}.help-card li{margin-bottom:14px;padding-left:4px}.help-card li::marker{color:var(--green);font-weight:700}.help-card li:last-child{margin-bottom:0}.trust-note{padding:0 16px;font-size:12px;color:var(--muted)}.trust-note .icon{width:19px;margin-bottom:9px}.tool-explanation{background:#fff;border:1px solid var(--line);border-radius:20px;padding:28px;margin-bottom:24px}.tool-explanation h2{font-size:23px}.tool-explanation p{font-size:14px}.faq{border-top:1px solid var(--line);padding:15px 0;font-size:14px}.faq summary{cursor:pointer;color:var(--ink);font-weight:600}.faq p{margin:12px 0 0;color:var(--muted)}.related-section{margin-top:38px}.related-section h2{font-size:25px}.related-section .tool-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.related-section .tool-card{min-height:210px}.input-zone{border:1px dashed #aac199;background:#f2f6ec;border-radius:16px;padding:26px 18px;outline-offset:3px;-webkit-user-select:none;user-select:none;min-height:210px;text-align:center;touch-action:manipulation;overflow:hidden}.input-zone:focus{border-style:solid;background:#edf4e3}.zone-hint{display:block;font-size:12px;color:var(--muted);max-width:460px;margin:auto}.input-feedback{display:block;font-size:16px;font-weight:550;margin-top:16px;color:var(--green)}.mouse-shape{width:63px;height:88px;border:2px solid #9db287;border-radius:28px 28px 24px 24px;margin:22px auto 0;position:relative;overflow:hidden}.mouse-shape i{position:absolute;width:50%;height:38px;border-bottom:1px solid #9db287;left:0;top:0}.mouse-shape i[data-mouse="2"]{left:50%;border-left:1px solid #9db287}.mouse-shape i[data-mouse="1"]{width:8px;height:17px;left:26px;top:12px;border:1px solid #9db287;border-radius:4px;background:#edf4e3;z-index:1}.mouse-shape .pressed{background:var(--lime)!important}.event-log{display:flex;flex-wrap:wrap;gap:6px;font-size:11px;margin:12px 0 20px;color:var(--muted);max-height:100px;overflow:auto}.event-log span{padding:4px 8px;background:var(--paper);border-radius:5px}.keyboard-zone{padding:18px 8px}.keyboard-map{margin-top:20px;display:grid;gap:4px}.key-row{display:flex;gap:3px;justify-content:center}.keycap{display:flex;flex:1;align-items:center;justify-content:center;min-width:0;min-height:30px;border:1px solid #d7decb;border-radius:4px;background:#fff;font-size:9px;overflow:hidden;color:#647053}.keycap.seen{background:#e0edc9;border-color:#acc485}.keycap.pressed{background:var(--green);color:#fff;border-color:var(--green)}.key-space{flex:5}.sticks{display:grid;grid-template-columns:1fr 1fr;gap:12px;background:var(--paper);border-radius:15px;padding:10px}.sticks canvas{width:100%;max-width:260px;justify-self:center}.gamepad-buttons{display:flex;gap:6px;flex-wrap:wrap;margin-top:14px}.pad-button{font-size:11px;border-radius:6px;border:1px solid var(--line);padding:4px 8px}.pad-button.pressed{background:var(--green);color:#fff}.privacy-note{display:flex;gap:10px;font-size:12px;border-radius:10px;padding:13px;background:var(--soft);margin-bottom:20px}.camera-view{aspect-ratio:16/9;position:relative;border-radius:16px;overflow:hidden;background:#18392e}.camera-view video{display:block;width:100%;height:100%;object-fit:contain}.camera-placeholder{position:absolute;top:45%;left:10%;right:10%;font-size:12px;text-align:center;color:#adc4b6}.sound-meter{height:30px;background:var(--soft);border-radius:7px;overflow:hidden}.sound-meter-fill{width:0;height:100%;background:linear-gradient(90deg,#b8d880,#4c9a4e 65%,#d6ba54 88%,#c6553a);transition:width .08s}.meter-scale{display:flex;justify-content:space-between;font-size:10px;color:var(--muted);margin-top:5px}.sound-hint{font-size:12px;margin-top:18px;color:var(--muted)}.media-result{font-size:13px;margin-top:18px}.media-result audio{display:block;width:100%;margin:10px 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