:root{--ink:#173340;--muted:#566a73;--line:#d7e1e2;--paper:#f4f7f6;--panel:#fff;--soft:#eaf1f1;--orange:#ed7907;--orange-dark:#a94b00;--navy:#173340;--shadow:0 2px 9px #16343d12}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);background:var(--paper);font:15px/1.55 ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}button{font:inherit}a{color:#125b72;text-decoration:none}a:hover{text-decoration:underline}a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid var(--orange);outline-offset:3px}.skip{position:absolute;left:12px;top:-80px;background:#fff;padding:10px;z-index:99}.skip:focus{top:12px}.shell{width:min(1360px,calc(100% - 42px));margin:0 auto;padding:22px 0 60px}.topbar{display:flex;align-items:center;justify-content:space-between;gap:20px;background:var(--navy);color:#fff;border-radius:9px;padding:13px 21px;box-shadow:0 3px 10px #0e29363b}.brand{display:flex;gap:12px;align-items:center;color:#fff;min-width:0}.brand:hover{text-decoration:none}.brand strong,.brand small{display:block}.brand strong{font-size:18px;letter-spacing:-.02em}.brand small{font-size:12px;color:#bdd1d7;letter-spacing:.03em}.brand-icon{display:block;flex:none;width:36px;height:36px;border-radius:8px;background-image:url("images/old-menu.png");background-size:405px 720px;background-position:-22.5px -37.5px;background-repeat:no-repeat;box-shadow:0 0 0 2px #ffffff48}.header-email{color:#fff;font-size:13px;font-weight:700;white-space:nowrap;border:1px solid #ffffff55;padding:8px 12px;border-radius:6px}.draft{display:flex;gap:15px;align-items:flex-start;background:#fffaf3;border:1px solid #f0d7ad;border-left:4px solid var(--orange);border-radius:7px;margin:16px 0 22px;padding:11px 15px;font-size:13px}.draft p{margin:0;color:#614d32}.draft-tag{white-space:nowrap;font-size:10px;letter-spacing:.11em;font-weight:800;color:#955006;margin-top:2px}.layout{display:grid;grid-template-columns:246px minmax(0,1fr);gap:22px;align-items:start}.rail{position:sticky;top:16px;max-height:calc(100vh - 32px);display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:9px;box-shadow:var(--shadow);overflow:hidden}.rail-title{font-size:11px;letter-spacing:.14em;font-weight:850;padding:17px 15px 9px;color:#567078}.rail-links{overflow-y:auto;padding:0 9px 10px;scrollbar-width:thin}.rail-links a{display:grid;grid-template-columns:24px minmax(0,1fr);gap:9px;align-items:center;border-radius:6px;padding:6px 8px;color:#304e57;font-size:13px;font-weight:650}.rail-links a:hover,.rail-links a.is-active{background:#e8f1f1;text-decoration:none;color:#124b5b}.rail-links a.is-active{box-shadow:inset 3px 0 0 var(--orange)}.rail-num,.rail-symbol{font-size:10px;font-weight:800;display:grid;place-items:center;background:#e6eeee;border-radius:5px;width:23px;height:23px;font-variant-numeric:tabular-nums;color:#34616c}.rail-links a.is-active .rail-num,.rail-links a.is-active .rail-symbol{background:#fce5ca;color:#8d3f00}.rail-separator{border-top:1px solid var(--line);margin:9px 8px 7px}.rail-footer{border-top:1px solid var(--line);padding:10px 15px 13px;margin:0;font-size:11px;color:#6a7c81}.nav-toggle{display:none}.main{min-width:0}.intro{padding:21px 4px 33px}.eyebrow{color:var(--orange-dark);font-size:11px;letter-spacing:.13em;font-weight:850}.intro h1{font-size:clamp(28px,3vw,41px);line-height:1.15;letter-spacing:-.035em;margin:10px 0}.intro p{max-width:800px;color:var(--muted);margin:0;font-size:15px}.screen-section,.utility-section{background:var(--panel);border:1px solid var(--line);border-radius:10px;box-shadow:var(--shadow);padding:29px 31px 32px;margin-bottom:20px;scroll-margin-top:16px}.section-heading{border-bottom:1px solid var(--line);padding-bottom:17px;margin-bottom:22px}.section-heading h2{font-size:clamp(26px,2.45vw,33px);letter-spacing:-.035em;line-height:1.18;margin:5px 0 6px}.section-heading p{color:var(--muted);margin:0;max-width:740px}.screen-grid{display:grid;grid-template-columns:minmax(235px,.85fr) minmax(300px,1.15fr);gap:24px;align-items:start}.visual-panel{margin:0;min-width:0;border-radius:8px;border:1px solid var(--line);background:#f8faf9;padding:12px 12px 14px;text-align:center}.visual-top{display:flex;justify-content:space-between;gap:8px;color:#647980;letter-spacing:.09em;font-size:10px;font-weight:800;text-align:left;margin-bottom:14px}.phone{width:min(310px,100%);margin:0 auto;background:#141b20;border:5px solid #293139;border-radius:32px;padding:12px 7px 13px;box-shadow:0 15px 27px #14313c27, inset 0 0 0 1px #69767d;position:relative}.phone::before{content:"";display:block;width:42px;height:4px;background:#515e63;border-radius:7px;margin:0 auto 9px}.phone::after{content:"";display:block;width:55px;height:3px;background:#697378;border-radius:5px;margin:10px auto 0}.phone-screen{border-radius:8px;overflow:hidden;position:relative;background:#050607}.phone-screen img{display:block;width:100%;height:auto}.screen-crop{aspect-ratio:1084/1925}.screen-crop img{position:absolute;width:112.9%;max-width:none;height:auto;left:-6.1%;top:-14.75%}.native-shot img{width:100%}.tablet-phone{width:100%;max-width:445px;border-radius:22px}.tablet-phone .phone-screen{border-radius:5px}.tablet-shot img{width:100%}.pin{position:absolute;z-index:2;left:5px;top:var(--y);display:grid;place-items:center;width:24px;height:24px;border-radius:50%;background:var(--orange);color:#fff;border:2px solid #fff;box-shadow:0 1px 6px #000b;font:800 11px/1 system-ui,sans-serif}.image-caption{font-size:11px;color:#64777d;text-align:left;line-height:1.5;margin:13px 1px 0}.image-needed{height:320px;border:1px dashed #9fb4ba;border-radius:7px;background:#edf3f2;display:flex;align-items:center;justify-content:center;flex-direction:column;color:#587078;gap:7px}.image-needed strong{color:#294b56;font-size:18px}.image-needed span:last-child{font-size:12px}.image-needed-icon{font-size:40px;color:#a3b8bc}.explain{min-width:0}.explain-label{margin:0 0 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small{color:#526b73}.swatch{display:inline-block;width:11px;height:11px;background:#9e63b6;border-radius:3px;margin-right:6px}.detail-block{display:grid;grid-template-columns:185px minmax(0,1fr);gap:23px;border-top:1px solid var(--line);margin-top:30px;padding-top:24px}.detail-block h3,.setting-strip h3,.comparison h3{font-size:20px;line-height:1.2;margin:7px 0 8px;letter-spacing:-.02em}.detail-block>div:first-child p{font-size:13px;color:var(--muted)}.detail-cards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.detail-cards article{background:#f8faf9;border:1px solid var(--line);border-radius:7px;padding:13px 14px}.detail-cards h4{margin:0 0 6px;font-size:14px}.detail-cards p{margin:0;font-size:12px;line-height:1.6;color:#485f67}.setting-strip{background:#fff9f2;border:1px solid #efd7b6;border-radius:7px;padding:15px 18px;margin-top:14px}.setting-strip h3{font-size:17px;margin:0 0 5px}.setting-strip p{color:#5a5d5b;font-size:13px;line-height:1.65;margin:0}.comparison{display:grid;grid-template-columns:185px minmax(0,1fr);gap:23px;border-top:1px solid var(--line);margin-top:24px;padding-top:24px}.comparison-copy p{font-size:13px;color:var(--muted)}.comparison-view{min-width:0;border:1px solid var(--line);border-radius:7px;padding:10px;background:#f8faf9}.view-buttons{display:flex;gap:5px;margin-bottom:10px}.view-buttons button{font-size:12px;font-weight:700;cursor:pointer;border:1px solid var(--line);background:#fff;color:#355762;padding:7px 10px;border-radius:5px}.view-buttons button.is-selected{background:var(--navy);color:white;border-color:var(--navy)}.comparison-view img{display:block;width:100%;height:280px;object-fit:cover;object-position:top;background:#111;border-radius:5px}.comparison-view p{font-size:11px;color:var(--muted);margin:9px 2px 1px}.help-cards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;align-items:start}.help-cards details{border:1px solid var(--line);border-radius:7px;background:#f8faf9;padding:11px 14px}.help-cards summary{cursor:pointer;font-weight:700;font-size:14px}.help-cards p{font-size:13px;color:#50666e;margin:9px 0 1px}.support-link{font-size:13px;margin:22px 0 0}.privacy-copy{max-width:790px}.privacy-copy h3{font-size:16px;margin:21px 0 4px}.privacy-copy h3:first-child{margin-top:0}.privacy-copy p{color:#4c646c;font-size:13px;line-height:1.7;margin:0 0 10px}.privacy-copy .privacy-source{padding:12px 14px;border-left:3px solid var(--orange);background:#fff9f1;margin-top:20px}.footer{display:flex;justify-content:space-between;color:#687d83;font-size:12px;padding:4px 2px 30px}
@media(max-width:1080px){.layout{grid-template-columns:215px minmax(0,1fr);gap:16px}.screen-section,.utility-section{padding:22px}.screen-grid{gap:15px;grid-template-columns:minmax(215px,.9fr) minmax(270px,1.1fr)}.detail-block,.comparison{grid-template-columns:1fr;gap:8px}.detail-block>div:first-child p{margin:0 0 10px}}
@media(max-width:800px){.shell{width:min(680px,calc(100% - 24px));padding-top:12px}.draft{margin-bottom:12px}.layout{display:block}.rail{top:0;max-height:70vh;margin-bottom:12px;z-index:20}.rail-title{padding:10px 14px;display:flex;align-items:center;justify-content:space-between}.nav-toggle{display:inline-flex;align-items:center;gap:9px;border:1px solid var(--line);border-radius:5px;background:#fff;padding:5px 9px;color:var(--ink);font-size:12px;font-weight:700;cursor:pointer}.rail-links{display:none;max-height:calc(70vh - 51px)}.rail.is-open .rail-links{display:block}.rail-footer{display:none}.intro{padding:13px 2px 22px}.screen-section,.utility-section{scroll-margin-top:68px}.screen-grid{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}}
@media(max-width:600px){body{font-size:14px}.shell{width:calc(100% - 20px)}.topbar{padding:11px 12px}.brand strong{font-size:15px}.brand small{font-size:10px}.brand-icon{width:32px;height:32px;background-size:360px 640px;background-position:-20px -33.3px}.header-email{font-size:0;padding:7px 9px}.header-email::after{content:"✉";font-size:17px}.draft{display:block}.draft-tag{display:block;margin-bottom:3px}.screen-section,.utility-section{padding:18px 15px}.screen-grid{grid-template-columns:1fr}.visual-panel{max-width:430px;width:100%;margin:0 auto}.phone{width:min(300px,100%)}.tablet-phone{width:100%}.note-list li{padding:10px 0}.detail-cards,.help-cards{grid-template-columns:1fr}.comparison-view img{height:260px}.footer{gap:12px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
/* Introduction and SSID filter example. */
.intro{background:var(--panel);border:1px solid var(--line);border-radius:10px;box-shadow:var(--shadow);padding:29px 31px 27px;margin-bottom:20px;scroll-margin-top:16px}
.intro h1{margin:6px 0 17px;font-size:clamp(27px,2.6vw,35px)}
.intro p{font-size:14px;line-height:1.72;color:#405a63;max-width:800px;margin:0 0 12px}
.intro .intro-source{font-size:11px;color:#71858b;margin:17px 0 0;border-top:1px solid var(--line);padding-top:11px}
.filter-sequence{min-width:0}
.filter-config{border:1px solid #efd7b6;border-radius:7px;background:#fffbf5;padding:14px 15px;margin-bottom:12px}
.step-label{font-size:10px;letter-spacing:.1em;font-weight:850;color:var(--orange-dark)}
.config-example{display:grid;gap:8px;margin:12px 0;padding:12px 14px;background:#fff;border:1px solid #efdfc6;border-radius:6px}
.config-example>div{display:flex;justify-content:space-between;gap:12px;align-items:baseline;font-size:13px;color:#435a61}
.config-example>div+div{border-top:1px solid #e6e8e6;padding-top:8px}
.config-example strong{color:#94600a}.config-example code{font-size:13px;color:#a94b00;font-weight:750;overflow-wrap:anywhere}
.filter-config p,.filter-footnote{font-size:12px;line-height:1.6;color:#5c6e72;margin:0}
.filter-results{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:11px}
.filter-results figure{min-width:0;margin:0;border:1px solid var(--line);border-radius:7px;background:#f8faf9;padding:9px}
.filter-results figcaption{display:flex;flex-direction:column;gap:1px;margin:0 1px 8px}.filter-results figcaption strong{font-size:13px}
.list-crop{position:relative;overflow:hidden;aspect-ratio:1200/680;background:#22282d;border:1px solid #344148;border-radius:4px}
.list-crop img{display:block;width:100%;max-width:none;height:auto;transform:translateY(-61.5%)}
.filter-results a{display:inline-block;font-size:11px;font-weight:700;margin:9px 2px 1px}
.filter-footnote{margin-top:12px}
@media(max-width:800px){.intro{scroll-margin-top:68px}}
@media(max-width:600px){.intro{padding:19px 16px}.intro p{font-size:13px}.filter-results{grid-template-columns:1fr}.list-crop{aspect-ratio:1200/620}}
/* Keep the guide identity and contents available while reading. */
.topbar{position:sticky;top:0;z-index:50}
.rail{top:78px;max-height:calc(100vh - 94px)}
.intro,.screen-section,.utility-section{scroll-margin-top:82px}
@media(max-width:800px){.rail{top:72px;max-height:calc(100vh - 82px)}.rail-links{max-height:calc(100vh - 132px)}.intro,.screen-section,.utility-section{scroll-margin-top:126px}}
/* Survey Pt: current list and edit screens, followed by the repeatable workflow. */
.survey-guide{display:grid;grid-template-columns:235px minmax(0,1fr);gap:24px;border-top:1px solid var(--line);margin-top:25px;padding-top:24px;scroll-margin-top:84px}
.survey-copy h3{font-size:20px;line-height:1.22;letter-spacing:-.02em;margin:7px 0 13px}
.survey-copy ol{padding-left:19px;margin:0;color:#435c64;font-size:13px;line-height:1.62}
.survey-copy li{padding-left:3px;margin:0 0 12px}
.survey-pending{font-size:11px;line-height:1.5;color:#77888d;border-left:2px solid #dec09d;padding-left:10px;margin:17px 0 0}
.survey-figures{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;align-items:start}
.survey-figures figure{min-width:0;margin:0;border:1px solid var(--line);border-radius:7px;background:#f8faf9;padding:9px}
.survey-viewport{position:relative;overflow:hidden;aspect-ratio:912/1050;background:#111;border:1px solid #d9e0e0;border-radius:4px}
.survey-viewport img{position:absolute;top:0;left:0;display:block;width:100%;height:auto}
.survey-figures figcaption{display:flex;flex-direction:column;align-items:flex-start;gap:3px;padding:8px 2px 2px;font-size:12px;line-height:1.5;color:#596c73}
.survey-figures figcaption strong{font-size:13px;color:var(--ink)}
.survey-figures figcaption a{font-size:11px;font-weight:700;margin-top:3px}
@media(max-width:1080px){.survey-guide{grid-template-columns:1fr;gap:10px}.survey-copy ol{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;padding-left:18px}.survey-pending{margin:6px 0 8px}}
@media(max-width:800px){.survey-guide{scroll-margin-top:126px}}
@media(max-width:600px){.survey-copy ol{display:block}.survey-figures{grid-template-columns:1fr}.survey-figures figure{max-width:420px;width:100%;margin:0 auto}}
/* Connection history and the three lower-pane views. */
.history-note{background:#f5f8f7;border:1px solid var(--line);border-radius:6px;padding:11px 14px;margin-top:10px;font-size:12px;color:#4b626a}
.history-note strong{font-size:12px;color:var(--ink)}.history-note p{margin:4px 0 0;line-height:1.6}
.events-guide{border-top:1px solid var(--line);margin-top:28px;padding-top:25px;scroll-margin-top:84px}
.events-heading{max-width:750px;margin-bottom:17px}.events-heading h3{font-size:21px;line-height:1.25;letter-spacing:-.02em;margin:5px 0 7px}.events-heading p{font-size:13px;color:var(--muted);margin:0}
.event-steps{padding:0;margin:0;list-style:none;display:grid;gap:13px}
.event-steps>li{display:grid;grid-template-columns:minmax(225px,300px) minmax(0,1fr);gap:19px;border:1px solid var(--line);border-radius:8px;background:#f8faf9;padding:12px;align-items:center}
.event-steps figure{margin:0;min-width:0}.event-viewport{position:relative;overflow:hidden;aspect-ratio:912/1100;background:#080a0c;border:1px solid #364147;border-radius:5px}.event-viewport img{position:absolute;bottom:0;left:0;width:100%;height:auto;display:block}
.event-steps figcaption{font-size:11px;font-weight:700;margin:8px 2px 0}
.event-explain h4{font-size:18px;letter-spacing:-.02em;margin:5px 0 8px}.event-explain p{font-size:13px;color:#4a636b;line-height:1.68;margin:0}
.events-pending{font-size:11px;color:#76888d;border-left:2px solid #dec09d;padding-left:10px;margin:13px 0 0}
@media(max-width:800px){.events-guide{scroll-margin-top:126px}}
@media(max-width:600px){.event-steps>li{grid-template-columns:1fr;gap:10px}.event-steps figure{width:min(330px,100%);margin:0 auto}.event-explain{padding:0 3px 3px}}
/* BSSID row, vendor lookup, ranging, and AP detail. */
.ap-guide{border-top:1px solid var(--line);margin-top:27px;padding-top:25px;scroll-margin-top:84px}
.ap-example{display:grid;grid-template-columns:minmax(225px,300px) minmax(0,1fr);gap:19px;align-items:center;border:1px solid var(--line);border-radius:8px;background:#f8faf9;padding:12px;margin-top:12px}
.ap-example figure{min-width:0;margin:0}.ap-example figcaption{font-size:11px;font-weight:700;margin:8px 2px 0}
.ap-detail-viewport{position:relative;overflow:hidden;aspect-ratio:912/1240;background:#060708;border:1px solid #364147;border-radius:5px}
.ap-detail-viewport img{position:absolute;top:0;left:0;display:block;width:100%;height:auto;transform:translateY(-11%)}
.ap-explain{font-size:13px;color:#4a636b;line-height:1.67}.ap-explain h4{font-size:18px;color:var(--ink);margin:6px 0 8px}.ap-explain p{margin:0}
.ap-points{padding-left:20px;margin:0}.ap-points li{margin:0 0 13px;padding-left:3px}.ap-points li:last-child{margin-bottom:0}.ap-points strong{color:var(--ink)}
@media(max-width:800px){.ap-guide{scroll-margin-top:126px}}
@media(max-width:600px){.ap-example{grid-template-columns:1fr;gap:12px}.ap-example figure{width:min(330px,100%);margin:0 auto}.ap-explain{padding:0 3px 3px}}
/* Android scan behavior beside the Handover annotations. */
.scan-footnote{display:grid;grid-template-columns:minmax(185px,1fr) minmax(0,1.6fr);gap:17px 28px;background:#f5f8f7;border:1px solid var(--line);border-left:3px solid var(--orange);border-radius:6px;padding:18px 20px;margin:23px 0 0;scroll-margin-top:84px;color:#435c64;font-size:13px;line-height:1.65}
.scan-footnote h3{margin:4px 0 8px;color:var(--ink);font-size:18px;line-height:1.25}.scan-footnote p{margin:0}.scan-footnote ol{margin:0;padding-left:20px}.scan-footnote li{padding-left:3px;margin:0 0 9px}.scan-footnote li:last-child{margin-bottom:0}
.scan-footnote .scan-source{grid-column:1/-1;border-top:1px solid var(--line);padding-top:10px;color:#657a80;font-size:11px}
@media(max-width:800px){.scan-footnote{scroll-margin-top:126px}}
@media(max-width:600px){.scan-footnote{grid-template-columns:1fr;padding:16px;gap:11px}}