:root {
  color-scheme: light;
  --ink: #182c2a;
  --muted: #5a6763;
  --paper: #f8f9f5;
  --line: #dce2da;
  --green: #216249;
  --signal: #85e4bc;
  --common: #f0c77e;
  --fibre: #bcb4fa;
  --earth: #a3bccb;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 30px; }
body { margin: 0; background: var(--paper); color: var(--ink); font: 15px/1.65 system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; }
a { color: var(--green); text-underline-offset: 4px; }
button, input { font: inherit; }
button, summary { cursor: pointer; }
button { color: inherit; }
a:focus-visible, button:focus-visible, input:focus-visible, summary:focus-visible, [tabindex]:focus-visible { outline: 3px solid #329269; outline-offset: 4px; }
button:disabled { cursor: default; }
.skip-link { position: fixed; top: -70px; left: 20px; background: #fff; padding: 12px 20px; z-index: 10; }
.skip-link:focus { top: 10px; }
.guide-layout { max-width: 1600px; margin: auto; display: grid; grid-template-columns: 226px minmax(0, 1fr); }
.guide-sidebar { align-self: start; position: sticky; top: 0; height: 100vh; min-height: 680px; border-right: 1px solid var(--line); padding: 31px 21px 23px; display: flex; flex-direction: column; background: #f0f3ec; }
.brand { display: flex; align-items: center; gap: 5px; color: var(--ink); text-decoration: none; font-size: 24px; letter-spacing: -1px; font-weight: 700; margin-bottom: 42px; }
.brand>span:last-child { font-weight: 400; margin-left: -5px; }
.brand .brand-mark { display: grid; place-items: center; width: 34px; height: 34px; background: #233d30; color: #e0edb4; border-radius: 8px; margin-right: 5px; font: 700 28px/1 Georgia, serif; padding-bottom: 4px; }
.sidebar-label { font: 600 10px/1.5 ui-monospace, monospace; letter-spacing: 1.25px; color: #617166; margin-bottom: 13px; }
.approaches { display: grid; gap: 6px; margin: 0 -10px; }
.approaches a { display: flex; align-items: flex-start; gap: 10px; padding: 12px 10px; text-decoration: none; color: #56665a; border: 1px solid transparent; border-radius: 6px; font-size: 13px; }
.approaches a>span { font: 11px/2 ui-monospace, monospace; }
.approaches small { display: block; font-size: 11px; color: #66736a; margin-top: 1px; }
.approaches a[aria-current] { background: #fff; border-color: #d9e2d2; color: #203c2b; font-weight: 650; box-shadow: 0 2px 3px #263f2010; }
.approaches a[aria-current]>span { color: #28714c; }
.contents-label { margin-top: 37px; }
.section-nav { display: grid; gap: 3px; }
.section-nav a { display: flex; gap: 12px; align-items: center; padding: 10px 0; text-decoration: none; color: #617065; font-size: 12px; }
.section-nav a span { font: 10px/1.5 ui-monospace, monospace; color: #6b7b6a; }
.section-nav a[aria-current] { color: #254b33; font-weight: 700; }
.section-nav a[aria-current] span { color: #fff; background: #356446; border-radius: 3px; padding: 2px 4px; margin: -2px -4px; }
.sidebar-bottom { margin-top: auto; padding-top: 35px; }
.sidebar-bottom a { display: flex; align-items: center; text-decoration: none; min-height: 41px; font-size: 12px; }
.sidebar-bottom a span { margin-left: auto; font: 10px ui-monospace, monospace; color: #677768; }
.sidebar-bottom p { border-top: 1px solid #d8dfd3; padding-top: 20px; margin: 19px 0 0; color: #6b7668; font: 10px/1.9 ui-monospace, monospace; }
.collector-page { min-width: 0; padding: 0 48px; max-width: 1260px; }
.site-header { min-height: 86px; display: flex; align-items: center; justify-content: space-between; gap: 14px; border-bottom: 1px solid var(--line); font-size: 12px; color: var(--muted); }
.site-header strong { color: var(--ink); font-weight: 500; }
.site-header>div>span { padding: 0 10px; color: #9ba69d; }
.header-actions { display: flex; gap: 24px; align-items: center; }
.header-actions a { font-size: 11px; text-decoration: none; }
.quiet-button { border: 1px solid #cfd8cd; background: transparent; border-radius: 5px; padding: 8px 13px; font-size: 12px; min-height: 38px; }
.quiet-button:hover { background: #e9eee4; }
.quiet-button span { margin-left: 16px; }
.hero { display: grid; grid-template-columns: 1.6fr 1fr; gap: 40px; padding: 42px 0 31px; align-items: end; }
.eyebrow { display: inline-flex; align-items: center; font: 600 10px/1.5 ui-monospace, SFMono-Regular, Consolas, monospace; letter-spacing: 1.1px; color: #536449; }
.status-dot { width: 6px; height: 6px; background: #417851; border-radius: 50%; margin-right: 8px; }
.hero-tag { margin-left: 12px; border-left: 1px solid #c8d3c0; padding-left: 12px; color: #6f694d; font-size: 9px; letter-spacing: .5px; }
h1, h2, h3, p { margin-top: 0; }
h1 { font-size: clamp(42px, 4.2vw, 61px); font-weight: 580; line-height: 1.05; letter-spacing: -2.8px; margin: 17px 0 20px; }
h1 em { color: var(--green); font-style: normal; }
.hero p { color: #59665c; font-size: 15px; line-height: 1.75; margin: 0; }
.hero-facts { border-left: 1px solid #d6decf; padding-left: 26px; margin-bottom: 4px; display: grid; gap: 18px; }
.hero-facts div>span { display: block; font: 10px/1.4 ui-monospace, monospace; letter-spacing: 1px; color: #647057; margin-bottom: 5px; }
.hero-facts strong { display: block; font-size: 12px; font-weight: 550; }
.hero-facts small { font-size: 11px; color: #637062; }
.proposal-note { border: 1px solid #e1d8ba; border-radius: 6px; background: #f4f0e2; font-size: 12px; }
.proposal-note summary { list-style: none; display: flex; align-items: center; gap: 10px; padding: 11px 14px; color: #5e5439; }
.proposal-icon { display: grid; place-items: center; width: 17px; height: 17px; border: 1px solid #b99d58; border-radius: 50%; font: 600 11px/1 ui-monospace, monospace; flex-shrink: 0; }
.proposal-note summary strong { white-space: nowrap; font-weight: 650; }
.details-plus { margin-left: auto; font: 22px/1 ui-monospace, monospace; transition: transform .2s; }
details[open]>summary .details-plus { transform: rotate(45deg); }
summary::-webkit-details-marker { display: none; }
.proposal-note p { margin: 0; padding: 3px 17px 16px 42px; max-width: 960px; color: #655b40; font-size: 13px; }
.section { padding-top: 60px; }
.connection-section { padding-top: 35px; }
.section-heading { display: flex; align-items: flex-end; justify-content: space-between; gap: 16px; }
h2 { font-size: 30px; letter-spacing: -1px; font-weight: 570; line-height: 1.2; margin: 10px 0 14px; }
h3 { font-size: 20px; letter-spacing: -.5px; line-height: 1.35; }
.section-meta { font: 9px/1.4 ui-monospace, monospace; color: #63745f; margin-bottom: 19px; letter-spacing: .6px; white-space: nowrap; }
.lead { color: var(--muted); line-height: 1.8; max-width: 860px; font-size: 14px; margin: 0 0 22px; }
.lead strong { color: #334d35; font-weight: 650; }
.map-shell { display: flex; flex-direction: column; border: 1px solid #223c3e; border-radius: 9px; overflow: hidden; background: #132b31; box-shadow: 0 8px 20px #10221c0a; }
.map-controls { order: 2; display: flex; flex-wrap: wrap; gap: 7px; padding: 15px 20px; border-top: 1px solid #375058; background: #1a343b; }
.map-controls button { border: 1px solid #50646b; border-radius: 5px; min-height: 36px; font-size: 11px; padding: 7px 11px; color: #e0eceb; background: #1a343b; display: inline-flex; align-items: center; gap: 7px; }
.map-controls button:hover { background: #28484a; }
.map-controls button[aria-pressed=true] { background: #dbeabe; border-color: #dbeabe; color: #223929; font-weight: 650; }
.key-dot { display: inline-block; border-radius: 50%; width: 6px; height: 6px; box-shadow: 0 0 0 1px #9ec2b933; }
.signal-key { background: #75d4ae; }.common-key { background: #f0c77e; }.fibre-key { background: #bcb4fa; }.earth-key { background: #a3bccb; }
.signal-overview { order: 1; padding: 22px 24px 0; color: #edf2e9; background: radial-gradient(ellipse at 35% 30%, #213c3c, #132b31 70%); }
.overview-heading { display: flex; justify-content: space-between; align-items: center; gap: 10px; margin-bottom: 22px; font-size: 10px; color: #b4c6c1; }
.overview-heading>span:first-child { font: 10px/1.3 ui-monospace, monospace; letter-spacing: 1.4px; color: #cfdfd0; display: flex; align-items: center; gap: 8px; }
.live-dot { width: 5px; height: 5px; border-radius: 50%; background: #c8e0a3; box-shadow: 0 0 0 4px #bad6870d; }
.signal-zones { display: grid; grid-template-columns: 1fr 1.45fr 1fr; gap: 20px; }
.signal-zone { min-width: 0; transition: opacity .2s; }
.zone-label { color: #b8cbd0; font: 10px/1.5 ui-monospace, monospace; letter-spacing: .55px; white-space: nowrap; }
.zone-label>span { color: #78989c; margin-right: 6px; }
.floating-zone { border: 1px dashed #bdac7080; border-radius: 6px; padding: 13px 16px 12px; margin-top: -13px; }
.floating-zone .zone-label { color: var(--common); }
.vacuum-visual { height: 126px; display: flex; align-items: center; justify-content: center; }
.vacuum-visual svg { width: 100%; max-width: 225px; height: 117px; }
.vacuum-visual svg text { fill: #b5cbd0; font: 11px system-ui, sans-serif; }
.component-caption { display: flex; flex-direction: column; gap: 2px; }
.component-caption strong { font-size: 13px; font-weight: 550; color: #f2f6ef; }
.component-caption>span { font-size: 10px; color: #acc3c7; }
.net-pill { font: 600 10px/1.5 ui-monospace, monospace; border-top: 1px solid #3d5659; padding-top: 11px; margin-top: 15px; letter-spacing: .3px; }
.net-pill>span { display: block; font: 10px/1.5 system-ui, sans-serif; letter-spacing: 0; font-weight: 400; margin-top: 3px; color: #bad0cc; }
.signal-pill { color: var(--signal); }.common-pill { color: var(--common); }.earth-pill { color: var(--earth); }
.floating-components { height: 126px; display: flex; justify-content: space-around; gap: 6px; align-items: center; }
.component { display: flex; flex-direction: column; text-align: center; }
.component strong { font-size: 13px; font-weight: 550; }.component small { font-size: 9px; color: #b1c3c6; }
.component-symbol { display: grid; place-items: center; height: 50px; font: 56px/.6 system-ui, sans-serif; color: #b2dccb; margin-bottom: 8px; }
.chip-symbol { font-size: 40px; color: #c4c1de; }
.component-arrow { color: #85d7b9; margin-top: -12px; font-size: 20px; }
.local-power { min-height: 40px; color: #d9caa6; font-size: 10px; display: flex; align-items: center; }
.floating-zone .net-pill { border-color: #736e535e; margin-top: 15px; }
.readout-visual { height: 126px; display: flex; gap: 15px; align-items: center; justify-content: center; }
.fibre-line { color: var(--fibre); font: 28px/.65 ui-monospace, monospace; letter-spacing: -2px; }
.screen-icon { display: flex; width: 75px; height: 55px; border: 2px solid #a1b7c5; border-radius: 5px; align-items: end; justify-content: center; padding: 10px; gap: 3px; position: relative; }
.screen-icon:after { content: ''; position: absolute; width: 30px; height: 2px; background: #9bacb8; left: 20px; bottom: -10px; }
.screen-icon i { display: block; height: 12px; width: 4px; background: #a5c1b7; }.screen-icon i:nth-child(2) { height: 23px; }.screen-icon i:nth-child(3) { height: 17px; }.screen-icon i:nth-child(4) { height: 28px; }
.overview-rule { border-top: 1px solid #365050; padding: 14px 0; margin-top: 22px; display: flex; align-items: center; gap: 20px; }
.rule-key { font: 9px/1.4 ui-monospace, monospace; color: #b8cec8; letter-spacing: .5px; white-space: nowrap; }
.overview-rule strong { font-size: 11px; color: #f3d19a; font-weight: 550; }.overview-rule strong span { color: #c6d5d4; font-weight: 400; }
.signal-overview[data-focus=signal] .ground-zone, .signal-overview[data-focus=common] .ground-zone, .signal-overview[data-focus=common] .vacuum-zone, .signal-overview[data-focus=optical] .vacuum-zone { opacity: .35; }
.net-explanation { order: 3; padding: 0 20px 19px; min-height: 98px; background: #1a343b; }
.net-explanation strong { color: #edf4e6; font-size: 12px; font-weight: 600; }
.net-explanation p { color: #bacdd0; font-size: 11px; margin: 5px 0 0; line-height: 1.8; max-width: 940px; }
.schematic-detail { border: 1px solid var(--line); margin: 15px 0 24px; border-radius: 6px; overflow: hidden; background: #fff; }
.schematic-detail summary { display: flex; align-items: center; padding: 15px 19px; list-style: none; }.schematic-detail summary strong { font-size: 13px; font-weight: 600; }.schematic-detail summary small { display: block; font-size: 11px; color: var(--muted); margin-top: 2px; }
.schematic-caption { margin: 0; padding: 12px 20px; color: var(--muted); font-size: 11px; }
.map-scroll { overflow: auto; background: #112b36; }
.map-scroll svg { display: block; width: 100%; min-width: 1060px; }
.svg-text { font-family: system-ui, sans-serif; font-size: 13px; fill: #e2eeeb; }.svg-text .svg-kicker { font-size: 11px; letter-spacing: .7px; fill: #b3ced0; }.svg-text .svg-strong { font-size: 13px; font-weight: 600; }.svg-text .svg-small { font-size: 11px; fill: #bad0d0; }
.net path { fill: none; stroke-width: 2.4px; }.net-signal path, .net-signal rect { stroke: var(--signal); }.net-signal circle { fill: var(--signal); }.net-common path { stroke: var(--common); }.net-common circle { fill: var(--common); }.net-common text { fill: #f2d4a4; }.net-optical path { stroke: var(--fibre); }.net-optical text { fill: var(--fibre); }.net-earth path { stroke: var(--earth); }
.net { transition: opacity .2s; }#connection-map:not([data-focus=all]) .net { opacity: .16; }#connection-map[data-focus=signal] .net-signal, #connection-map[data-focus=common] .net-common, #connection-map[data-focus=optical] .net-optical, #connection-map[data-focus=earth] .net-earth { opacity: 1; }
.table-scroll { border: 1px solid var(--line); border-radius: 6px; overflow: auto; background: #fff; }
table { border-collapse: collapse; width: 100%; font-size: 12px; line-height: 1.8; }
caption { text-align: left; padding: 17px 18px; background: #fff; font-size: 13px; color: var(--ink); border-bottom: 1px solid var(--line); }
caption>span { float: right; font-size: 11px; color: var(--muted); font-weight: 400; }
th, td { text-align: left; vertical-align: top; padding: 15px 17px; border-bottom: 1px solid var(--line); }
thead { background: #edf1e9; color: #596651; font: 600 10px/1.5 ui-monospace, monospace; }
tbody tr:last-child>* { border-bottom: 0; }tbody tr:hover { background: #f6f8f2; }tbody td:first-child { width: 140px; color: #2d4b38; font-weight: 550; }
.net-tag { white-space: nowrap; font: 600 10px/1.5 ui-monospace, monospace; background: #edf4e5; border: 1px solid #dbe8d0; border-radius: 3px; padding: 4px 6px; }
.source-line { font-size: 11px; line-height: 1.9; color: var(--muted); margin: 14px 0 0; }
.detail-panel { border: 1px solid var(--line); border-radius: 5px; background: #fff; margin-top: 16px; padding: 15px 18px; font-size: 13px; color: var(--muted); }
.detail-panel summary { font-weight: 550; color: var(--ink); }
.detail-panel p { margin-top: 14px; }.detail-panel p:last-child { margin-bottom: 0; }
.two-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; margin-top: 28px; }
.two-cards article { padding: 22px 0 0; border-top: 2px solid #bdcdb0; }
.two-cards h3 { margin: 13px 0; }.two-cards p { font-size: 13px; color: var(--muted); line-height: 1.85; }
.calculator { display: grid; grid-template-columns: minmax(280px, .9fr) minmax(0, 1.3fr); border: 1px solid var(--line); border-radius: 8px; overflow: hidden; background: #fff; }
.calculator-controls { display: grid; grid-template-columns: 1fr 1fr; gap: 23px 16px; margin: 0; padding: 23px; background: #edf2e6; border-right: 1px solid #d7e1cc; }
.controls-heading { grid-column: 1/-1; display: flex; gap: 10px; align-items: center; justify-content: space-between; font-size: 10px; color: #5d7353; padding-bottom: 7px; border-bottom: 1px solid #d1dbc6; }
.controls-heading .eyebrow { font-size: 9px; }
.calculator-controls label { font-size: 11px; font-weight: 600; line-height: 1.55; color: #33492b; }
.calculator-controls label>span { display: block; font-size: 10px; font-weight: 400; color: #5e6d57; margin-top: 2px; }
.calculator-controls input[type=number] { width: 100%; min-width: 0; border: 1px solid #c0ceb3; border-radius: 5px; margin-top: 8px; padding: 9px 10px; min-height: 42px; font-size: 15px; color: #233b26; background: #fff; }
.wide-control { grid-column: 1/-1; display: grid; grid-template-columns: 1fr auto; gap: 13px; align-items: center; }
.wide-control input { grid-column: 1/-1; width: 100%; margin: 0; accent-color: #487640; min-height: 24px; }
.wide-control output { font: 600 23px/1.4 ui-monospace, monospace; letter-spacing: -1px; }
.results { display: grid; grid-template-columns: 1fr 1fr; padding: 23px; gap: 12px; }
.results[hidden] { display: none; }
.results article { border-bottom: 1px solid #e4e9dd; padding: 8px 0 15px; display: flex; flex-direction: column; justify-content: center; }
.results article>span { font-size: 10px; color: var(--muted); }
.results strong { font: 500 clamp(17px, 1.8vw, 25px)/1.3 ui-monospace, SFMono-Regular, monospace; letter-spacing: -1px; margin: 9px 0; overflow-wrap: anywhere; color: #294b32; }
.results small { font-size: 10px; color: #6b7465; }
.results .error-card { background: #f9f3e8; padding: 13px 11px; border: 1px solid #eee0c8; border-radius: 5px; }.error-card strong { color: #835e22; }
.result-target { grid-column: 1/-1; color: var(--muted); font-size: 11px; margin: 7px 0 0; line-height: 1.8; }
.results.overrange strong { color: #a44227; }
.calculation-status { border-left: 3px solid #b2934c; background: #f4f0e5; padding: 13px 16px; color: #645634; font-size: 12px; line-height: 1.8; margin: 15px 0 0; }
.steps { list-style: none; counter-reset: steps; padding: 0; margin: 24px 0; }
.steps li { counter-increment: steps; padding: 22px 12px 22px 63px; border-top: 1px solid var(--line); position: relative; }
.steps li:before { content: '0' counter(steps); position: absolute; left: 0; top: 24px; width: 34px; height: 34px; display: grid; place-items: center; border: 1px solid #cedbc1; border-radius: 5px; background: #ecf1e6; font: 12px ui-monospace, monospace; color: #49613a; }
.steps strong { font-weight: 600; font-size: 15px; }.steps p { font-size: 13px; line-height: 1.85; color: var(--muted); margin: 7px 0 0; }
.acceptance { border: 1px solid #cfddc0; border-radius: 6px; background: #edf3e5; padding: 20px 23px; font-size: 13px; }.acceptance p { color: #56654c; margin: 6px 0 0; }
.comparison-section .lead { margin-top: 22px; }
.sources { margin-top: 55px; padding: 25px 0 15px; border-top: 1px solid var(--line); color: var(--muted); font-size: 12px; }.sources ul { padding-left: 17px; line-height: 2.1; }.sources p { font-size: 11px; }
footer { display: flex; gap: 17px; flex-wrap: wrap; justify-content: space-between; padding: 22px 0 35px; border-top: 1px solid var(--line); font-size: 10px; }footer a { text-decoration: none; }footer span { color: var(--muted); }
.print-input-summary { display: none; }
/* The shared hosting banner is compact on a read-only field guide. */
.collector-guide .public-hosting-bar { background: #e8eee0; border-color: #d9e1d1; color: #526047; padding: 7px 24px; font-size: 10px; }
.collector-guide .public-hosting-bar span { display: none; }
.collector-guide .public-hosting-bar a { color: #526747; text-decoration: none; }
@media (min-width: 1600px) { .guide-layout { border-left: 1px solid var(--line); border-right: 1px solid var(--line); } }
@media (max-width: 1200px) {
 .guide-layout { grid-template-columns: 196px minmax(0, 1fr); }.guide-sidebar { padding: 28px 16px 20px; }.collector-page { padding: 0 30px; }.hero { gap: 25px; }.hero-facts { padding-left: 19px; }.hero-facts strong { font-size: 11px; }.hero-tag { display: none; }.header-actions>a { display: none; }.section-meta { display: none; }.signal-overview { padding: 21px 18px 0; }.signal-zones { gap: 14px; }.floating-zone { padding-right: 10px; padding-left: 10px; }.zone-label { font-size: 9px; letter-spacing: 0; }.overview-heading>span:last-child { display: none; }.calculator-controls { padding: 19px; gap: 20px 14px; }.results { padding: 18px; }.results strong { font-size: 19px; }
}
@media (max-width: 960px) {
 .guide-layout { display: block; }.guide-sidebar { position: static; height: auto; min-height: 0; padding: 19px 28px 0; display: grid; grid-template-columns: 1fr auto; border-right: 0; border-bottom: 1px solid var(--line); }.brand { margin: 0; font-size: 22px; }.brand .brand-mark { width: 30px; height: 30px; }.sidebar-label, .sidebar-bottom { display: none; }.approaches { display: flex; gap: 8px; margin: 0; }.approaches a { padding: 8px 10px; font-size: 11px; }.approaches small { font-size: 9px; }.section-nav { grid-column: 1/-1; display: flex; gap: 26px; margin-top: 15px; overflow: auto; }.section-nav a { white-space: nowrap; font-size: 11px; min-height: 44px; }.section-nav a span { display: none; }.section-nav a[aria-current] { box-shadow: inset 0 -2px #497545; }.collector-page { max-width: 940px; margin: auto; }.site-header { min-height: 65px; }.hero { padding-top: 34px; }.hero-tag { display: inline; }h1 { font-size: 54px; }.hero-facts strong { font-size: 12px; }.section-meta { display: inline; }
}
@media (max-width: 700px) {
 html { scroll-padding-top: 20px; }
 .collector-guide .public-hosting-bar { display: flex; flex-direction: row; align-items: center; justify-content: space-between; padding: 7px 17px; gap: 8px; font-size: 9px; }.collector-guide .public-hosting-bar nav { gap: 10px; }.collector-guide .public-hosting-bar nav a:first-child { display: none; }
 .guide-sidebar { padding: 19px 19px 0; display: flex; flex-direction: column; }.brand { font-size: 24px; }.brand .brand-mark { width: 31px; height: 31px; }.approaches { gap: 8px; margin-top: 19px; }.approaches a { flex: 1; min-height: 49px; padding: 8px 11px; font-size: 12px; align-items: center; border-color: #dae1d3; }.approaches a>span { display: none; }.approaches small { font-size: 10px; }.section-nav { margin-top: 9px; gap: 22px; }.section-nav a { font-size: 11px; }
 .collector-page { padding: 0 20px; }.site-header { min-height: 59px; font-size: 10px; }.site-header>div>span { padding: 0 6px; }.quiet-button { font-size: 11px; padding: 7px 10px; }.quiet-button span { margin-left: 8px; }
 .hero { grid-template-columns: 1fr; gap: 21px; padding: 26px 0 22px; align-items: start; }.hero .eyebrow { font-size: 9px; letter-spacing: .8px; }.hero-tag { font-size: 8px; margin-left: 8px; padding-left: 8px; }.status-dot { margin-right: 6px; }
 h1 { font-size: 45px; letter-spacing: -2px; margin: 14px 0 15px; }.hero p { font-size: 13px; line-height: 1.75; }.desktop-break { display: none; }
 .hero-facts { display: flex; flex-wrap: wrap; gap: 12px 20px; border-left: 0; padding: 16px 0 0; border-top: 1px solid var(--line); margin: 0; }.hero-facts div { flex: 1 1 140px; }.hero-facts div:last-child { display: none; }.hero-facts div>span { font-size: 9px; }.hero-facts strong { font-size: 10px; line-height: 1.6; }
 .proposal-note summary { padding: 12px; gap: 8px; flex-wrap: wrap; position: relative; padding-right: 32px; }.proposal-note summary strong { font-size: 11px; }.proposal-note summary>span:nth-of-type(2) { flex-basis: 100%; font-size: 10px; padding-left: 25px; }.proposal-note .details-plus { position: absolute; right: 12px; top: 22px; }.proposal-note p { padding: 0 14px 14px; font-size: 12px; }
 .section { padding-top: 42px; }.connection-section { padding-top: 29px; }.section-heading { display: block; }.section-meta { display: none; }.eyebrow { font-size: 9px; }h2 { font-size: 27px; letter-spacing: -.8px; margin-top: 9px; }h3 { font-size: 19px; }.lead { font-size: 13px; line-height: 1.8; margin-bottom: 18px; }
 .signal-overview { padding: 18px 17px 0; }.overview-heading { margin-bottom: 20px; }.overview-heading>span:first-child { font-size: 9px; }
 .signal-zones { display: grid; grid-template-columns: 1fr; gap: 24px; }.signal-zone { display: grid; grid-template-columns: 1fr 1fr; column-gap: 12px; align-items: center; }.zone-label { grid-column: 1/-1; font-size: 10px; letter-spacing: .4px; margin-bottom: 6px; }.vacuum-visual { grid-row: span 2; height: 125px; }.vacuum-visual svg { width: 147px; max-width: 100%; }.component-caption strong { font-size: 12px; }.component-caption>span { font-size: 10px; }.net-pill { font-size: 10px; margin-top: 6px; padding-top: 9px; }.net-pill>span { font-size: 10px; }
 .floating-zone { padding: 14px; margin: 0; }.floating-components { grid-column: 1/-1; height: 104px; justify-content: space-evenly; }.component strong { font-size: 14px; }.component small { font-size: 10px; }.floating-zone .local-power { font-size: 10px; min-height: 51px; }.floating-zone .net-pill { margin-top: 0; border-top: 0; padding-top: 0; border-left: 1px solid #726c4e; padding-left: 12px; }.readout-visual { grid-row: span 2; height: 113px; gap: 9px; }.ground-zone .net-pill { margin-top: 7px; }
 .overview-rule { display: block; padding: 15px 0; margin-top: 20px; }.rule-key { display: block; margin-bottom: 6px; font-size: 9px; }.overview-rule strong { display: block; line-height: 1.8; font-size: 12px; }.overview-rule strong span { display: block; }
 .map-controls { padding: 13px; gap: 7px; }.map-controls button { min-height: 40px; font-size: 10px; padding: 9px 10px; flex-grow: 1; }.map-controls button:first-child { flex-basis: 100%; }.net-explanation { padding: 0 16px 18px; min-height: 162px; }.net-explanation strong { font-size: 12px; }.net-explanation p { font-size: 11px; }
 .schematic-detail { margin-top: 12px; }.schematic-detail summary { padding: 14px; }.schematic-detail summary small { max-width: 245px; font-size: 10px; }.schematic-caption { font-size: 10px; }
 .table-scroll { overflow: visible; }.table-scroll table, .table-scroll tbody, .table-scroll tr, .table-scroll td, .table-scroll th { display: block; width: auto; }table { font-size: 12px; }thead { display: none!important; }caption { display: block; padding: 16px; }caption>span { display: block; float: none; font-size: 10px; margin-top: 3px; }
 tbody tr { padding: 17px 16px; border-bottom: 1px solid var(--line); }tbody tr:last-child { border-bottom: 0; }tbody td, tbody th { padding: 6px 0; border: 0; }tbody td:first-child { width: auto; padding-top: 0; font-size: 13px; }.net-tag { font-size: 11px; padding: 4px 7px; }tbody td:not(:first-child):before { content: attr(data-label); display: block; font: 600 9px/1.5 ui-monospace, monospace; color: #66735c; letter-spacing: .4px; margin: 3px 0; }.source-line { font-size: 10px; }
 .two-cards { grid-template-columns: 1fr; gap: 9px; }.two-cards article { padding-top: 19px; }.two-cards p { font-size: 12px; }.detail-panel { padding: 14px; font-size: 12px; }
 .calculator { grid-template-columns: 1fr; }.calculator-controls { padding: 20px 16px; border-right: 0; border-bottom: 1px solid #d7e1cc; gap: 22px 15px; }.calculator-controls label { font-size: 11px; }.calculator-controls input[type=number] { font-size: 16px; }.calculator-controls label>span { font-size: 10px; }.results { padding: 18px 15px; gap: 12px; }.results strong { font-size: 20px; }.results article>span { font-size: 10px; }.results small { font-size: 10px; }.results .error-card { padding: 12px 9px; }.calculation-status { font-size: 11px; }.result-target { font-size: 11px; }
 .steps li { padding: 20px 0 20px 47px; }.steps li:before { width: 30px; height: 30px; top: 21px; font-size: 11px; }.steps strong { font-size: 14px; }.steps p { font-size: 12px; }.acceptance { padding: 16px; font-size: 12px; }.sources { margin-top: 38px; font-size: 11px; }footer { justify-content: flex-start; gap: 14px; font-size: 11px; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; }.net, .signal-zone, .details-plus { transition: none; } }
@media print {
 @page { margin: 12mm; }
 body { background: #fff; font-size: 11px; }
 .guide-layout { display: block; }.collector-page { max-width: none; padding: 0; }.guide-sidebar, .site-header, .public-hosting-bar, .skip-link, .map-controls, .calculator-controls, footer { display: none!important; }
 .hero { padding: 10px 0 20px; grid-template-columns: 1.5fr 1fr; }.hero-facts { display: grid; }h1 { font-size: 36px; }h2 { font-size: 24px; }.section { padding-top: 25px; }
 .signal-overview, .map-shell, .proposal-note, .acceptance, .results { -webkit-print-color-adjust: exact; print-color-adjust: exact; }.signal-zone, .net { opacity: 1!important; }
 details>summary { display: none; }details::details-content { display: block; }details>* { display: block!important; }
 .schematic-detail { break-before: page; }.map-scroll { overflow: visible; }.map-scroll svg { min-width: 0; width: 100%; }
 .table-scroll { overflow: visible; }table { font-size: 10px; }td, th { padding: 8px; }tr, .steps li, .two-cards article { break-inside: avoid; }
 .calculator { grid-template-columns: 1fr; }.results { padding: 12px; }.results strong { font-size: 20px; }.print-input-summary { display: block; font-size: 11px; padding: 10px; border: 1px solid #ccc; }
 .sources { margin-top: 25px; }.source-line, .schematic-caption { font-size: 10px; }a { color: inherit; }
}
/* Screenshot review 2: compact orientation, clearer signal flow and larger labels. */
.mobile-toc { display: none; }
@media screen and (min-width: 701px) {
 .hero { padding-top: 29px; padding-bottom: 25px; }.hero h1 { font-size: clamp(42px, 3.9vw, 56px); margin-bottom: 16px; }.hero-facts { gap: 14px; }.hero-facts strong { font-size: 13px; }.hero-facts small { font-size: 12px; }
 .section-nav a { font-size: 13px; }.sidebar-bottom a { font-size: 13px; }.sidebar-label { font-size: 11px; }.site-header { min-height: 75px; }.connection-section { padding-top: 29px; }
 .lead { max-width: 970px; }.overview-heading { margin-bottom: 19px; }.signal-overview { padding-top: 20px; }.zone-label { font-size: 11px; }.zone-label>span { font-size: 10px; }.signal-zones { gap: 33px; grid-template-columns: 1fr 1.45fr 1fr; }
 .component-caption strong, .component strong { font-size: 15px; }.component-caption>span, .component small { font-size: 11px; }.local-power { font-size: 11px; }.net-pill { font-size: 12px; padding-top: 9px; margin-top: 11px; }.net-pill>span { font-size: 11px; }.floating-zone .net-pill { margin-top: 11px; }
 .map-controls button { font-size: 12px; min-height: 39px; }.map-controls { padding-top: 13px; padding-bottom: 13px; }.net-explanation strong { font-size: 13px; }.net-explanation p { font-size: 12px; }.overview-rule strong { font-size: 12px; }.overview-rule { margin-top: 18px; padding: 13px 0; }.rule-key { font-size: 10px; }
 table { font-size: 13px; }thead { font-size: 11px; }.net-tag { font-size: 11px; }.schematic-detail summary strong { font-size: 14px; }.schematic-detail summary small { font-size: 12px; }
 .results article>span, .results small, .calculator-controls label>span { font-size: 11px; }.calculator-controls label { font-size: 12px; }.results strong { font-size: clamp(18px, 1.75vw, 24px); }.controls-heading .eyebrow { font-size: 10px; }
}
.signal-zone { position: relative; }
.vacuum-zone:after { content: '→'; position: absolute; color: var(--signal); font: 23px/1 ui-monospace, monospace; right: -27px; top: 85px; }
.floating-zone:after { content: '⇄'; position: absolute; color: var(--fibre); font: 25px/1 ui-monospace, monospace; right: -30px; top: 97px; }
@media screen and (min-width: 961px) and (max-width: 1200px) {
 .signal-zones { gap: 25px; }.zone-label { font-size: 9px; }.component-caption strong, .component strong { font-size: 13px; }.component-caption>span, .component small, .local-power { font-size: 10px; }.floating-zone:after { right: -25px; }.vacuum-zone:after { right: -24px; }.hero-tag { display: none; }
}
@media screen and (max-width: 700px) {
 .guide-sidebar { display: grid; grid-template-columns: 1fr auto; padding-top: 16px; padding-bottom: 15px; gap: 0; }.guide-sidebar .section-nav { display: none; }.approaches { grid-column: 1/-1; margin-top: 15px; }.approaches a { min-height: 46px; }
 .mobile-toc { display: block; align-self: center; position: relative; }.mobile-toc summary { display: flex; align-items: center; gap: 14px; list-style: none; font-size: 12px; min-height: 40px; padding: 5px 0 5px 14px; color: #405535; }.mobile-toc summary span { font-size: 20px; }.mobile-toc nav { position: absolute; right: -2px; top: 47px; z-index: 3; width: 248px; background: #fff; padding: 10px; border: 1px solid #ced9c2; border-radius: 7px; box-shadow: 0 10px 25px #1c362321; }.mobile-toc a { display: block; padding: 13px 9px; border-radius: 3px; font-size: 13px; text-decoration: none; }.mobile-toc a:hover { background: #edf3e6; }
 .site-header { display: none; }.hero { padding: 24px 0 22px; gap: 0; }.hero-facts { display: none; }.hero p { font-size: 14px; }.hero h1 { font-size: 43px; margin-top: 14px; margin-bottom: 16px; }.proposal-note summary>span:nth-of-type(2) { font-size: 11px; }.proposal-note summary strong { font-size: 12px; }.connection-section { padding-top: 26px; }.lead { font-size: 14px; }.section h2 { font-size: 27px; }
 .vacuum-zone:after, .floating-zone:after { right: auto; left: calc(50% - 10px); top: auto; bottom: -24px; font-size: 20px; }.vacuum-zone:after { content: '↓'; }.floating-zone:after { content: '⇅'; }.signal-zones { gap: 27px; }.zone-label { font-size: 11px; }.component-caption strong { font-size: 13px; }.component-caption>span { font-size: 11px; }.net-pill>span { font-size: 11px; }.net-pill { font-size: 11px; }.component-caption>span { line-height: 1.6; }.map-controls button { font-size: 11px; min-height: 44px; }.net-explanation strong { font-size: 13px; }.net-explanation p { font-size: 12px; }.net-explanation { min-height: 190px; }
 .calculator-controls label { font-size: 12px; }.calculator-controls label>span { font-size: 11px; }.results article>span, .results small { font-size: 11px; }.steps p, .two-cards p { font-size: 13px; }
}
.calculator-controls label:not(.wide-control) { display: flex; flex-direction: column; }
.calculator-controls label:not(.wide-control)>span { margin-bottom: 8px; }
.calculator-controls input[type=number] { margin-top: auto; }

.signal-overview[data-focus=earth] .floating-zone { opacity: .35; }

.integrated-board-link { margin: 0 0 22px; padding: 18px 20px; background: #e8eee0; border: 1px solid #bacbab; border-radius: 7px; }
.integrated-board-link>a { display: flex; justify-content: space-between; gap: 14px; color: #2b4c39; font-size: 17px; font-weight: 650; text-decoration: none; margin: 6px 0; }
.integrated-board-link p { font-size: 12px; color: #58674f; line-height: 1.7; }