:root{font-family:Inter,"Segoe UI","Malgun Gothic",system-ui,sans-serif;color:#22332e;background:#f5f7f8;font-synthesis:none;--green:#167451;--muted:#65746f;--border:#e2e8e5}
.topbar-actions{display:flex;align-items:center;gap:18px;flex-shrink:0}#language-select{font:inherit;font-size:14px;color:#24513a;background:#fff;border:1px solid #c9d6ce;border-radius:6px;padding:8px 10px;min-height:40px;cursor:pointer}#language-select:focus-visible{outline:3px solid #3e9e7d;outline-offset:3px}html[lang=en] .nav-number{display:none}html[lang=en] .nav-icon{flex-shrink:0}html[lang=en] .detail-row dt{flex-shrink:1}html[lang=en] .detail-row dd{flex-shrink:0;max-width:60%}
@media(max-width:650px){.topbar{height:auto!important;min-height:66px;gap:12px;padding-top:10px!important;padding-bottom:10px!important;flex-wrap:wrap}.topbar-actions{gap:8px}.topbar-actions .version{display:none}#language-select{font-size:14px}html[lang=en] .page-heading{align-items:flex-start}html[lang=en] .sample-label{white-space:normal}html[lang=en] .detail-row dd{max-width:55%}}
*{box-sizing:border-box}body{margin:0;font-size:16px;line-height:1.6}button,input{font:inherit}button,a,input{touch-action:manipulation}button{cursor:pointer;border:0}button:disabled{cursor:default;opacity:.5}button:focus-visible,a:focus-visible{outline:3px solid #3e9e7d;outline-offset:4px}input:focus{outline:2px solid #167451;outline-offset:2px}a{color:inherit}button:hover{filter:brightness(.95)}[hidden]{display:none!important}.mono,code,.metric-value,.address-value{font-family:Consolas,"SFMono-Regular",monospace}.skip{position:fixed;top:-100px;left:20px;z-index:9;background:white;padding:10px}.skip:focus{top:10px}
.sidebar{position:fixed;inset:0 auto 0 0;width:242px;background:#142724;color:#dce7e3;padding:32px 20px;display:flex;flex-direction:column}.brand{display:flex;align-items:center;gap:10px;flex-wrap:wrap;text-decoration:none;font-size:25px;font-weight:750;letter-spacing:-1px;padding:0 8px}.brand-icon{background:#89e3b9;color:#143a2b;border-radius:9px;width:35px;height:35px;font-size:28px;line-height:35px;text-align:center}.brand-label{flex-basis:100%;margin-left:46px;font-size:11px;letter-spacing:2.5px;color:#a6bcb3;margin-top:-13px}.nav-label{font-size:12px;letter-spacing:1.4px;color:#9fb6ab;margin:54px 14px 14px}nav{display:grid;gap:8px}nav a{display:flex;align-items:center;gap:13px;color:#b8cbc2;text-decoration:none;border-radius:8px;padding:13px 14px;font-size:14px;font-weight:600}nav a.active{background:#29443a;color:#abefc8}nav a:hover{background:#223c32}.nav-icon{font-size:22px;line-height:1;width:24px}.nav-number{margin-left:auto;font-size:12px;color:#91ac9e;font-family:monospace}.sidebar-bottom{margin-top:auto;padding:24px 12px 0;border-top:1px solid #30463d}.local-mark{font:12px Consolas,monospace;letter-spacing:1px;color:#8ce3b7}.sidebar-bottom p{font-size:15px;color:#d0dfd8;margin:12px 0}.sidebar-bottom small{color:#a5bbb0;font-size:12px}.workspace{margin-left:242px}.topbar{height:76px;background:#fff;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;padding:0 48px;font-size:14px;color:var(--muted)}.topbar strong{font-weight:500;color:#243d31}.slash{color:#8a9c90;margin:0 18px}.version{font-size:12px;letter-spacing:1px;color:#687b6e}main{max-width:1380px;margin:auto;padding:44px 48px 24px}.page-heading{display:flex;align-items:center;justify-content:space-between;margin-bottom:30px}.eyebrow{font-size:12px;letter-spacing:2px;font-weight:700;color:var(--green);margin-bottom:7px}h1{font-size:32px;letter-spacing:-1.4px;line-height:1.4;margin:0 0 8px}h2{font-size:16px;margin:0;font-weight:650}h3{font-size:18px}p{margin:0}.page-heading p{font-size:16px;color:var(--muted)}.tag{font:12px Consolas,monospace;padding:7px 11px;border:1px solid #cbdad2;border-radius:5px;color:#547064;background:#edf3ef}
.segmented{display:inline-flex;background:#e7eeea;padding:4px;border-radius:8px;margin-bottom:24px;gap:4px}.segmented button{font-size:14px;padding:9px 22px;color:#4e6659;background:transparent;border-radius:5px}.segmented button.selected{color:#1e4836;background:#fff;box-shadow:0 2px 4px #193b3010;font-weight:600}.tool-grid{display:grid;grid-template-columns:minmax(280px,.87fr) minmax(340px,1.4fr);gap:24px;align-items:start}.card{background:white;border:1px solid var(--border);border-radius:12px;box-shadow:0 3px 12px #173e2603;overflow:hidden}.input-card,.result-card{padding:26px}.card-title{display:flex;align-items:center;gap:10px;margin-bottom:27px}.step{font:12px Consolas,monospace;color:#617b6e;border:1px solid var(--border);border-radius:5px;padding:2px 6px}label{display:block;font-size:14px;font-weight:600;margin-bottom:10px}input{display:block;width:100%;min-width:0;font-size:17px;border:1px solid #c9d6ce;border-radius:6px;padding:13px 14px;background:#fff;color:#22372b;margin-bottom:10px}input::placeholder{color:#718378;font-size:15px}.field-help{font-size:13px;color:#63776a;line-height:1.7;margin-top:10px}.examples{display:flex;flex-wrap:wrap;align-items:center;gap:7px;margin:23px 0;font-size:12px;color:#607769}.examples button{background:#f0f4f1;color:#486551;border:1px solid #dce6df;border-radius:4px;padding:5px 10px;font:13px Consolas,monospace;min-height:32px}.examples>span{margin-right:5px}.ip-examples{gap:8px}.primary{display:flex;align-items:center;justify-content:space-between;width:100%;background:var(--green);color:white;border-radius:6px;padding:13px 17px;font-size:14px;font-weight:600;margin-top:24px}.primary span{font-size:20px;line-height:1}.note{margin-top:28px;padding-top:23px;border-top:1px solid #e9eeeb}.note strong{font-size:14px;color:#486950;font-weight:600}.note p{font-size:13px;color:#63786a;margin-top:8px;line-height:1.85}.text-button{margin-left:auto;background:transparent;color:#456d52;font-size:12px;border:1px solid #dbe5dd;border-radius:5px;padding:6px 10px}.result-hero{background:#edf7f0;border:1px solid #daeddf;border-radius:8px;padding:20px;margin-bottom:22px}.result-hero small{font-size:12px;color:#4a7157;display:block;margin-bottom:8px}.network-value{font:clamp(20px,2.5vw,30px) Consolas,monospace;letter-spacing:-.7px;color:#175633;overflow-wrap:anywhere}.normalization{font-size:12px;color:#567860;margin-top:8px}.address-range{display:grid;grid-template-columns:1fr auto 1fr;gap:12px;align-items:center;padding:4px 0 22px;border-bottom:1px solid var(--border)}.address-range small{display:block;color:#627b6a;font-size:12px;margin-bottom:5px}.address-value{font-size:17px;overflow-wrap:anywhere}.range-arrow{color:#8da794}.metric-grid{display:grid;grid-template-columns:1fr 1fr;margin:20px 0 12px;gap:18px}.metric{border:1px solid #e7ece8;border-radius:7px;padding:15px;min-width:0}.metric-label{font-size:12px;color:#627769}.metric-value{font-size:clamp(17px,2vw,27px);color:#213e2b;margin-top:4px;overflow-wrap:anywhere}.metric-unit{font-size:12px;color:#62786a;margin-left:6px}dl{margin:0}.detail-row{display:flex;justify-content:space-between;gap:16px;font-size:14px;padding:11px 0;border-bottom:1px solid #eef2ef}.detail-row:last-child{border:0}.detail-row dt{color:#5c7564;flex-shrink:0}.detail-row dd{margin:0;text-align:right;overflow-wrap:anywhere;min-width:0}.bottom-note{display:flex;gap:9px;align-items:center;margin:21px 0;color:#647a6b;font-size:12px}.bottom-note>span{width:17px;height:17px;border:1px solid #a1b5a6;border-radius:100%;text-align:center;font:12px Georgia,serif;flex-shrink:0}footer{display:flex;justify-content:space-between;border-top:1px solid var(--border);margin-top:48px;padding-top:20px;color:#6c8071;font-size:12px}footer>span:first-child{font-weight:600}.label-detail{font-weight:400;color:#647b6b;font-size:12px;margin-left:6px}form label:not(:first-child){margin-top:22px}.empty{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:265px;text-align:center;color:#647c6b;padding:22px}.empty-icon{font-size:36px;color:#7b9b86}.empty h3{color:#506b58;margin:16px 0 6px;font-size:16px}.empty p{font-size:14px;max-width:350px}.error{margin-top:16px;padding:12px;background:#fff1ed;border:1px solid #f0d6cd;border-radius:6px;color:#a94428;font-size:14px}.table-wrap{overflow:auto}table{border-collapse:collapse;width:100%;font-size:14px;white-space:nowrap}th,td{text-align:left;padding:12px 14px;border-bottom:1px solid #e5ede7}th{background:#f4f8f5;color:#577361;font-size:12px;font-weight:500}.result-summary{color:#56715f;font-size:13px;margin-bottom:15px}.results-scroll{max-height:430px;overflow:auto}.sample-tag{background:#fff6e8;color:#986324;border-color:#e9d7bb}.sample-banner{display:flex;align-items:center;gap:14px;padding:15px 18px;background:#fff8ec;border:1px solid #ecdcc4;border-radius:8px;margin-bottom:24px;font-size:13px;color:#806037}.sample-label{font-size:12px;font-weight:650;white-space:nowrap;border-right:1px solid #e3cba9;padding-right:14px}.result-badge{margin-left:auto;background:#fff6e8;color:#906128;border-radius:4px;font-size:12px;padding:3px 7px}#toast{position:fixed;bottom:28px;left:50%;transform:translateX(-50%);padding:12px 22px;border-radius:7px;background:#193d2b;color:white;font-size:14px;box-shadow:0 5px 25px #0002;z-index:5}
@media(min-width:1500px){main{padding-top:56px}.tool-grid{grid-template-columns:390px 1fr}}
@media(max-width:1100px){.sidebar{width:210px;padding:30px 14px}.workspace{margin-left:210px}main{padding:32px 26px}.topbar{padding:0 26px}.tool-grid{gap:18px;grid-template-columns:minmax(240px,.95fr) minmax(300px,1.2fr)}.input-card,.result-card{padding:21px}.address-value{font-size:14px}}
@media(max-width:900px){.sidebar{position:static;width:auto;padding:20px 24px}.brand{font-size:23px;flex-wrap:nowrap}.brand-label{margin:0 0 0 auto;flex-basis:auto}.nav-label,.sidebar-bottom,.nav-number{display:none}nav{display:flex;gap:8px;margin-top:22px}nav a{flex:1;justify-content:center;padding:10px 8px;font-size:14px}.nav-icon{font-size:19px;width:auto}.workspace{margin:0}.topbar{height:58px}.tool-grid{grid-template-columns:minmax(250px,.9fr) minmax(300px,1.1fr)}h1{font-size:28px}}
@media(max-width:650px){main{padding:27px 18px 20px}.sidebar{padding:18px}.topbar{padding:0 18px;font-size:12px}.version{font-size:12px}.slash{margin:0 10px}nav a{font-size:14px;gap:6px;padding:10px 5px;flex-wrap:wrap}.nav-icon{display:none}.page-heading{margin-bottom:24px;gap:12px}.page-heading p{font-size:14px}.tag{align-self:flex-start;margin-top:27px}.tool-grid{grid-template-columns:minmax(0,1fr)}.segmented{display:flex}.segmented button{flex:1;padding:9px 10px}.result-card,.input-card{padding:22px}.address-value{font-size:16px}.note{margin-top:24px}.empty{min-height:210px}footer{margin-top:32px}.bottom-note{align-items:flex-start}.metric-value{font-size:20px}.brand-label{font-size:12px}.sample-banner{align-items:flex-start}.detail-row{font-size:14px}.result-badge{font-size:12px}.card-title{gap:8px}}
@media(prefers-reduced-motion:no-preference){button,a{transition:background-color .15s ease}.page{animation:appear .2s ease}@keyframes appear{from{opacity:.7;transform:translateY(3px)}to{opacity:1;transform:translateY(0)}}}

/* Top navigation and a separate right-hand advertising column. */
.site-header{background:#142724;color:#dce7e3;display:flex;align-items:center;gap:36px;padding:18px 40px;min-height:86px}
.site-header .brand{flex-wrap:nowrap;flex-shrink:0;padding:0}
.site-header .brand-label{display:none}
.site-header nav{display:flex;gap:8px;margin:0;flex:1;flex-wrap:wrap}
.site-header nav a{flex:0 1 auto;white-space:nowrap;padding:10px 16px}
.site-header .nav-number{display:none}
.site-header .topbar-actions{margin-left:auto}
.site-header .version{display:none}
.workspace{margin-left:0}
.topbar{height:58px;padding:0 40px}
.content-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:32px;max-width:1540px;margin:0 auto;padding:36px 40px 24px;align-items:start}
.content-layout main{width:100%;min-width:0;max-width:none;margin:0;padding:0}
.content-layout .tool-grid{grid-template-columns:minmax(260px,.9fr) minmax(0,1.3fr)}
.content-layout .card{min-width:0}
.ad-rail{width:300px;padding-top:8px}
.ad-slot{min-height:600px;border:1px dashed #cbd5cf;background:#eef2f0;display:flex;align-items:flex-start;justify-content:center;padding:18px;color:#78867d}
.ad-slot span{font-size:11px;letter-spacing:1.8px}
@media(max-width:1200px){.site-header{gap:20px;padding:18px 24px}.topbar{padding:0 24px}.content-layout{gap:24px;padding:30px 24px}.content-layout .tool-grid{grid-template-columns:minmax(0,1fr)}}
@media(max-width:950px){.content-layout{grid-template-columns:minmax(0,1fr)}.content-layout .tool-grid{grid-template-columns:minmax(240px,.9fr) minmax(0,1.3fr)}.ad-rail{width:100%;padding-top:0}.ad-slot{min-height:250px}.site-header{flex-wrap:wrap;gap:16px}.site-header nav{order:3;flex-basis:100%}.site-header nav a{flex:1;justify-content:center}}
@media(max-width:650px){.site-header{padding:16px 18px}.site-header nav{gap:4px}.site-header nav a{font-size:13px;white-space:normal;text-align:center;padding:10px 6px}.site-header .brand{font-size:23px}.content-layout{padding:26px 18px;gap:28px}.content-layout .tool-grid{grid-template-columns:minmax(0,1fr)}.topbar{padding-left:18px;padding-right:18px}.ad-slot{min-height:250px}}