/* selfhost-fonts:start */
/* Self-hosted Google Fonts (SIL OFL / Apache 2.0). Files live in /fonts/. Regenerate with scripts/selfhost_fonts.py. */
/* source: css2?family=Archivo:wdth,wght@62..125,400..800&family=Archivo+Narrow:wght@400..700&display=swap */
/* latin-ext */
@font-face {
  font-family: 'Archivo';
  font-style: normal;
  font-weight: 400 800;
  font-stretch: 62% 125%;
  font-display: swap;
  src: url(/fonts/archivo-normal-400-800-latin-ext.a791cc00.woff2) format('woff2');
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}
/* latin */
@font-face {
  font-family: 'Archivo';
  font-style: normal;
  font-weight: 400 800;
  font-stretch: 62% 125%;
  font-display: swap;
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}
/* latin-ext */
@font-face {
  font-family: 'Archivo Narrow';
  font-style: normal;
  font-weight: 400 700;
  font-display: swap;
  src: url(/fonts/archivo-narrow-normal-400-700-latin-ext.842a323e.woff2) format('woff2');
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}
/* latin */
@font-face {
  font-family: 'Archivo Narrow';
  font-style: normal;
  font-weight: 400 700;
  font-display: swap;
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}
/* selfhost-fonts:end */

/* methane.land. Concept: the process flow diagram.
   The page is laid out as one gas line: wellhead, separator, meter, flare branch, genset, load.
   Graphite drawing sheet up top, a light sheet for the run, safety yellow for tags and
   electrical, gas blue for the gas line. Archivo for reading, Archivo Narrow for tags and data. */

:root {
  --graphite: #1c2024;
  --graphite-2: #23292e;
  --graphite-3: #2d343a;
  --graphite-4: #15181b;
  --drafting: #1f2529;
  --line-dk: #3b444b;
  --line-lt: #c9d1d6;
  --on-dark: #e8ecee;
  --on-dark-2: #aeb8bf;
  --sheet: #eef1f2;
  --sheet-2: #e0e6e9;
  --paper: #fbfcfc;
  --ink: #16191c;
  --ink-2: #434b52;
  --rule: #c3cbd0;
  --gas: #1c62a0;
  --gas-lt: #6fb3ea;
  --yellow: #f2c230;
  --yellow-soft: #fbf0c4;
  --alarm: #9b2c1f;
  --hazard: repeating-linear-gradient(-45deg, var(--yellow) 0 9px, var(--graphite) 9px 18px);
  --sans: 'Archivo', 'Helvetica Neue', Arial, sans-serif;
  --narrow: 'Archivo Narrow', 'Arial Narrow', 'Helvetica Neue', Arial, sans-serif;
  --wrap: 1180px;
  --spine-col: 72px;
  --bubble: 64px;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: no-preference) { html { scroll-behavior: smooth; } }
body {
  margin: 0;
  background: var(--sheet);
  color: var(--ink);
  font: 400 1.0625rem/1.6 var(--sans);
  overflow-x: hidden;
}
img, svg { max-width: 100%; }
a { color: var(--gas); text-underline-offset: 3px; }
a:hover { color: var(--ink); }
:focus-visible { outline: 3px solid var(--gas); outline-offset: 2px; }
h1, h2, h3 { font-family: var(--sans); font-weight: 800; font-stretch: 108%; line-height: 1.1; letter-spacing: -0.012em; margin: 0 0 .5em; }
h3 { font-size: 1.2rem; font-stretch: 100%; font-weight: 700; }
p { margin: 0 0 1em; }
.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 20px; }
.nowrap { white-space: nowrap; }
.sr-only { 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: -9999px; top: 0; z-index: 100; padding: .75rem 1rem; background: var(--yellow); color: var(--graphite); font: 700 1rem var(--narrow); text-decoration: none; }
.skip-link:focus { left: 0; outline: 3px solid var(--graphite); }

/* Masthead: graphite, with a strip of hazard tape */
.masthead { background: var(--graphite); color: var(--on-dark); position: sticky; top: 0; z-index: 20; border-bottom: 1px solid var(--line-dk); }
.masthead::before { content: ""; display: block; height: 6px; background: var(--hazard); }
.masthead-row { display: flex; align-items: center; justify-content: space-between; gap: 10px 20px; flex-wrap: wrap; min-height: 64px; padding-top: 8px; padding-bottom: 8px; }
.masthead :focus-visible, .hero :focus-visible, .intake-copy :focus-visible, .footer :focus-visible { outline-color: var(--yellow); }

.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; color: var(--on-dark); }
.brand:hover { color: var(--on-dark); }
.mark { width: 38px; height: 38px; flex: none; }
.mark .bond { stroke: currentColor; stroke-width: 2.8; stroke-linecap: round; fill: none; }
.mark .hash { stroke-dasharray: 2.4 2.1; stroke-linecap: butt; }
.mark .wedge, .mark .h { fill: currentColor; }
.mark .tip { fill: var(--yellow); }
.mark .c { fill: var(--gas-lt); }
.word { font: 800 1.4rem/1 var(--sans); font-stretch: 110%; letter-spacing: -0.01em; }
.word span { font-weight: 500; color: var(--gas-lt); }

.nav { display: flex; flex-wrap: wrap; align-items: center; gap: 4px 20px; font: 600 1rem var(--narrow); letter-spacing: .02em; }
.nav a { color: var(--on-dark-2); text-decoration: none; padding: 6px 0; }
.nav a:hover { color: var(--on-dark); text-decoration: underline; text-decoration-color: var(--yellow); text-decoration-thickness: 2px; }
.nav .nav-cta { color: var(--graphite); background: var(--yellow); padding: 9px 14px; font-weight: 700; }
.nav .nav-cta:hover { color: var(--graphite); background: var(--on-dark); text-decoration: none; }
@media (max-width: 860px) {
  .nav a:not(.nav-cta):not(.keep) { display: none; }
}
@media (max-width: 760px) {
  .masthead { position: static; }
}
@media (max-width: 420px) {
  .masthead-row { column-gap: 10px; }
  .nav .keep { display: none; }
  .nav .nav-cta { padding: 8px 11px; }
  .mark { width: 34px; height: 34px; }
  .brand { gap: 8px; }
  .word { font-size: 1.2rem; }
}

/* Hero: the drawing sheet */
.hero { background: var(--graphite); color: var(--on-dark); padding: 52px 0 56px; }
.hero-grid { display: grid; gap: 36px; align-items: start; }
@media (min-width: 960px) { .hero-grid { grid-template-columns: 1.5fr 1fr; gap: 56px; } }
h1 { font-size: clamp(2.3rem, 5.4vw, 4rem); line-height: 1.02; font-stretch: 112%; max-width: 12.5em; margin-bottom: 22px; }
.hero h1 { color: var(--on-dark); }
.lead { font-size: 1.16rem; color: #d3dade; max-width: 36em; }
.who { font: 500 1.02rem/1.5 var(--narrow); color: var(--on-dark-2); border-left: 3px solid var(--gas-lt); padding-left: 12px; max-width: 40em; }
.handoff { margin-top: 18px; color: #d3dade; max-width: 40em; }
.handoff a { color: var(--gas-lt); font-weight: 600; }
.actions { display: flex; flex-wrap: wrap; align-items: center; gap: 14px 24px; margin-top: 28px; }
.btn { display: inline-block; font: 700 1.1rem/1.2 var(--narrow); letter-spacing: .02em; padding: 14px 22px; text-decoration: none; cursor: pointer; border: 2px solid transparent; border-radius: 0; }
.btn-yellow { background: var(--yellow); color: var(--graphite); border-color: var(--yellow); }
.btn-yellow:hover { background: var(--on-dark); border-color: var(--on-dark); color: var(--graphite); }
.btn:disabled { opacity: .65; cursor: wait; }
.text-link { color: var(--gas-lt); font: 600 1.05rem var(--narrow); text-decoration-thickness: 2px; }
.text-link:hover { color: var(--on-dark); }

.needs { background: var(--graphite-2); border: 1px solid var(--line-dk); border-top: 4px solid var(--yellow); padding: 20px 22px 8px; }
.needs-h { font: 700 .92rem/1.3 var(--narrow); letter-spacing: .1em; text-transform: uppercase; color: var(--yellow); margin-bottom: 12px; }
.needs ol { list-style: none; margin: 0 0 14px; padding: 0; counter-reset: need; }
.needs li { counter-increment: need; position: relative; padding: 10px 0 10px 40px; border-top: 1px solid var(--line-dk); color: var(--on-dark-2); font-size: 1rem; line-height: 1.5; }
.needs li::before { content: counter(need); position: absolute; left: 0; top: 10px; width: 26px; height: 26px; border: 1.5px solid var(--on-dark-2); border-radius: 50%; display: grid; place-items: center; font: 700 .85rem/1 var(--narrow); color: var(--on-dark); }
.needs b { color: var(--on-dark); }
.needs p { font: 400 .95rem/1.5 var(--narrow); color: var(--on-dark-2); }

.drawing {
  margin: 44px 0 0;
  padding: 18px;
  background:
    linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px) 0 0 / 20px 20px,
    linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px) 0 0 / 20px 20px,
    var(--drafting);
  border: 1px solid var(--line-dk);
  box-shadow: inset 0 0 0 6px var(--graphite), inset 0 0 0 7px var(--line-dk);
}
.pid { display: block; width: 100%; height: auto; }
.pid-tall { display: none; max-width: 420px; margin: 0 auto; }
@media (max-width: 900px) {
  .pid-wide { display: none; }
  .pid-tall { display: block; }
  .drawing { padding: 14px 10px; margin-top: 36px; }
}
@media (max-width: 900px) and (min-width: 761px) {
  .drawing { padding: 18px; }
}
.pid text { font-family: var(--narrow); fill: currentColor; text-anchor: middle; }
.pid .start { text-anchor: start; }
.pid .end { text-anchor: end; }
.pid .tag { color: var(--yellow); font-weight: 700; font-size: 15px; letter-spacing: .06em; }
.pid .name { color: var(--on-dark); font-weight: 600; font-size: 14px; }
.pid .note { color: var(--on-dark-2); font-size: 13px; }
.pid .lnum { color: var(--on-dark-2); font-size: 12px; letter-spacing: .04em; }
.pid .bt { color: var(--on-dark); font-weight: 700; font-size: 12.5px; }
.pid .gen { color: var(--on-dark); font-weight: 700; font-size: 22px; }
.pid .ln { stroke: var(--line-lt); stroke-width: 2.4; fill: none; }
.pid .ln-lt { stroke: var(--line-lt); stroke-width: 2; fill: none; }
.pid .eq { fill: var(--graphite-2); stroke: var(--line-lt); stroke-width: 2; }
.pid .opt { stroke-dasharray: 7 5; }
.pid .valve { fill: var(--graphite-2); stroke: var(--line-lt); stroke-width: 1.6; stroke-linejoin: round; }
.pid .gas { stroke: var(--gas-lt); stroke-width: 3; fill: none; }
.pid .liq { stroke: #8f9aa2; stroke-width: 2.2; fill: none; }
.pid .arrow { fill: var(--gas-lt); }
.pid .liq-arrow { fill: #8f9aa2; }
.pid .sig { stroke: var(--on-dark-2); stroke-width: 1.2; stroke-dasharray: 4 3; fill: none; }
.pid .bubble { fill: var(--graphite); stroke: var(--line-lt); stroke-width: 1.8; }
.pid .bubble-rule { stroke: var(--line-lt); stroke-width: 1.2; }
.pid .level { stroke: var(--gas-lt); stroke-width: 1.2; stroke-dasharray: 6 4; opacity: .7; }
.pid .dia path { fill: var(--graphite); stroke: var(--gas-lt); stroke-width: 1.6; }
.pid .dia text { color: var(--on-dark); font-weight: 700; font-size: 12px; }
.pid .dia-elec path { stroke: var(--yellow); }
.pid .elec { stroke: var(--yellow); stroke-width: 2.4; stroke-dasharray: 12 4 3 4; fill: none; }
.pid .flame { fill: var(--yellow); }
.pid .tee { fill: var(--gas-lt); }
.pid .pad { fill: none; stroke: var(--on-dark-2); stroke-width: 1.4; stroke-dasharray: 16 6; }
.pid .grade path { stroke: #8f9aa2; stroke-width: 2; fill: none; }
.pid .grade .hatch { stroke-width: 1.2; }
.pid .titleblock rect { fill: var(--graphite); stroke: #8f9aa2; stroke-width: 1.4; }
.pid .titleblock path { stroke: #8f9aa2; stroke-width: 1.2; fill: none; }
.pid .tb-strong { color: var(--on-dark); font-weight: 700; font-size: 14px; letter-spacing: .1em; }
.pid .tb { color: var(--on-dark-2); font-size: 13px; }
.pid .tb-warn { color: var(--yellow); font-weight: 600; font-size: 13px; }

.drawing figcaption { margin-top: 14px; border-top: 1px solid var(--line-dk); padding-top: 12px; }
.equip-h { font: 600 .82rem/1.3 var(--narrow); letter-spacing: .1em; text-transform: uppercase; color: var(--on-dark-2); margin: 0 0 8px; }
.equip { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); border-top: 1px solid var(--line-dk); border-left: 1px solid var(--line-dk); }
@media (min-width: 760px) { .equip { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
@media (min-width: 1080px) { .equip { grid-template-columns: repeat(6, minmax(0, 1fr)); } }
.equip li { border-right: 1px solid var(--line-dk); border-bottom: 1px solid var(--line-dk); }
.equip a { display: block; height: 100%; padding: 10px 12px 12px; text-decoration: none; color: var(--on-dark); font-family: var(--narrow); }
.equip a:hover { background: var(--graphite-3); color: var(--on-dark); }
.equip .t { display: block; color: var(--yellow); font-weight: 700; letter-spacing: .06em; font-size: .95rem; }
.equip .n { display: block; font-weight: 600; font-size: 1.02rem; }
.equip .q { display: block; color: var(--on-dark-2); font-size: .92rem; }

/* The run: one gas line down the page, a tag bubble at each stage */
.sheet { background: var(--sheet); }
.run { padding-top: 12px; padding-bottom: 24px; }
.stage { position: relative; display: grid; grid-template-columns: var(--spine-col) minmax(0, 1fr); column-gap: 28px; padding: 56px 0 60px; scroll-margin-top: 80px; }
.stage::before { content: ""; position: absolute; top: 0; bottom: 0; left: calc(var(--spine-col) / 2 - 2px); width: 4px; background: var(--gas); }
.stage:first-child::before { top: calc(56px + var(--bubble) / 2); }
.stage::after { content: ""; position: absolute; left: calc(var(--spine-col) / 2); bottom: 16px; transform: translateX(-50%); border: 9px solid transparent; border-top: 12px solid var(--gas); border-bottom: 0; }
.stage-elec::before { width: 6px; left: calc(var(--spine-col) / 2 - 3px); background: var(--hazard); }
.stage-elec::after { bottom: -1px; border-top-color: var(--graphite); }
.spine { position: relative; }
.bubble-tag { position: relative; z-index: 1; display: grid; grid-template-rows: 1fr 1fr; width: var(--bubble); height: var(--bubble); margin: 0 auto; border-radius: 50%; background: var(--paper); border: 2.5px solid var(--ink); color: var(--ink); font-family: var(--narrow); text-align: center; }
.bubble-tag::before { content: ""; position: absolute; left: 7px; right: 7px; top: calc(50% - 1px); height: 2px; background: currentColor; }
.bubble-tag b { align-self: end; font-size: 1.1rem; font-weight: 700; line-height: 1; padding-bottom: 5px; letter-spacing: .04em; }
.bubble-tag i { align-self: start; font-style: normal; font-weight: 600; font-size: .95rem; line-height: 1; padding-top: 6px; }
.stage-flare .bubble-tag { background: var(--yellow); border-color: var(--graphite); color: var(--graphite); }
.stage-elec .bubble-tag { background: var(--graphite); border-color: var(--graphite); color: var(--yellow); }
.line-no { position: absolute; z-index: 1; left: 50%; top: calc(var(--bubble) + 44px); transform: translateX(-50%); writing-mode: vertical-rl; background: var(--sheet); padding: 8px 0; font: 600 .8rem/1 var(--narrow); letter-spacing: .08em; color: var(--ink-2); white-space: nowrap; }
.stage-body { min-width: 0; }
.stage-body > h2 { font-size: clamp(1.7rem, 3.4vw, 2.45rem); margin-top: 12px; max-width: 20em; }
.stage-lead { font-size: 1.12rem; color: var(--ink-2); max-width: 44em; margin-bottom: 28px; }
.split { display: grid; gap: 28px 44px; }
@media (min-width: 960px) { .split { grid-template-columns: 1.35fr 1fr; align-items: start; } }
.stage-body.split > div > h2 { font-size: clamp(1.7rem, 3.4vw, 2.45rem); margin-top: 12px; }
.stage-body.split p { color: var(--ink-2); max-width: 40em; }

@media (max-width: 700px) {
  :root { --spine-col: 44px; --bubble: 44px; }
  .stage { column-gap: 14px; padding: 44px 0 52px; }
  .stage:first-child::before { top: calc(44px + var(--bubble) / 2); }
  .bubble-tag { border-width: 2px; }
  .bubble-tag::before { left: 4px; right: 4px; height: 1.5px; }
  .bubble-tag b { font-size: .82rem; padding-bottom: 3px; }
  .bubble-tag i { font-size: .74rem; padding-top: 4px; }
  .line-no { font-size: .72rem; top: calc(var(--bubble) + 28px); }
  .stage-body > h2, .stage-body.split > div > h2 { margin-top: 4px; }
  .calc { position: relative; z-index: 1; margin-left: calc(-1 * (var(--spine-col) + 14px)); }
}

/* Tables: stream data, rules, who gets paid */
table { border-collapse: collapse; width: 100%; }
caption { caption-side: top; text-align: left; font: 700 .82rem/1.3 var(--narrow); letter-spacing: .08em; text-transform: uppercase; color: var(--ink-2); padding-bottom: 8px; }
.spec, .rules { background: var(--paper); border: 1.5px solid var(--ink); }
.spec thead th, .rules thead th { background: var(--graphite); color: var(--on-dark); font: 700 .82rem/1.3 var(--narrow); letter-spacing: .08em; text-transform: uppercase; text-align: left; padding: 10px 14px; }
.spec tbody th, .rules tbody th { font: 700 1.02rem/1.35 var(--narrow); text-align: left; vertical-align: top; padding: 13px 14px; border-top: 1px solid var(--rule); width: 17%; }
.spec td, .rules td { vertical-align: top; padding: 13px 14px; border-top: 1px solid var(--rule); color: var(--ink-2); font-size: .98rem; line-height: 1.5; }
.spec td:nth-child(2), .rules td:nth-child(2) { font: 500 1rem/1.45 var(--narrow); color: var(--ink); }
.spec td:nth-child(2) { width: 27%; }
.rules td:nth-child(2) { width: 22%; }
.rules tbody tr:nth-child(2) td:nth-child(3) span { font-weight: 700; color: var(--ink); }
@media (max-width: 760px) {
  table.stack caption { display: block; width: 100%; }
  table.stack thead { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
  table.stack, table.stack tbody, table.stack tr, table.stack th, table.stack td { display: block; width: 100% !important; }
  table.stack tr { border-top: 1.5px solid var(--ink); }
  table.stack tr:first-child { border-top: 0; }
  table.stack tbody th { background: var(--sheet-2); border-top: 0; padding: 10px 14px; }
  table.stack td { border-top: 1px dotted var(--rule); padding: 8px 14px 10px; }
  table.stack td::before { content: attr(data-label); display: block; font: 700 .72rem/1.3 var(--narrow); letter-spacing: .1em; text-transform: uppercase; color: var(--ink-2); margin-bottom: 2px; }
}

/* Separator note */
.margin-note { background: var(--paper); border: 1.5px solid var(--ink); border-left: 8px solid var(--yellow); padding: 18px 20px 6px; margin-top: 12px; }
.margin-note h3 { font-size: 1.15rem; }
.margin-note p { color: var(--ink-2); }

/* Meter: gas-rights questions */
.qa { margin: 0; display: grid; gap: 0 44px; }
@media (min-width: 900px) { .qa { grid-template-columns: 1fr 1fr; } }
.qa div { border-top: 2px solid var(--ink); padding: 14px 0 20px; }
.qa dt { font-weight: 700; font-size: 1.14rem; line-height: 1.3; }
.qa dd { margin: 6px 0 0; color: var(--ink-2); }

/* Genset: data sheet and stream table */
.calc { display: grid; background: var(--paper); border: 1.5px solid var(--ink); }
@media (min-width: 1000px) { .calc { grid-template-columns: 1.05fr 1fr; } }
.datasheet { border-bottom: 1.5px solid var(--ink); }
@media (min-width: 1000px) { .datasheet { border-bottom: 0; border-right: 1.5px solid var(--ink); } }
.ds-title { margin: 0; background: var(--graphite); color: var(--on-dark); font: 700 .9rem/1.3 var(--narrow); letter-spacing: .1em; text-transform: uppercase; padding: 12px 16px; }
.ds-group { margin: 0; background: var(--sheet-2); border-top: 1px solid var(--rule); border-bottom: 1px solid var(--rule); padding: 7px 16px; font: 700 .8rem/1.3 var(--narrow); letter-spacing: .1em; text-transform: uppercase; color: var(--ink-2); }
.ds-row { display: grid; grid-template-columns: 30px minmax(0, 1fr) minmax(0, 200px); align-items: center; gap: 4px 12px; padding: 10px 16px; border-bottom: 1px dotted var(--rule); }
.ds-row:last-child { border-bottom: 0; }
.ds-no { font: 600 .85rem var(--narrow); color: var(--ink-2); }
.ds-row label { font: 600 1.02rem/1.3 var(--narrow); color: var(--ink); }
.ds-hint { grid-column: 2 / -1; margin: 0; font: 400 .9rem/1.4 var(--narrow); color: var(--ink-2); }
@media (max-width: 520px) {
  .ds-row { grid-template-columns: 24px minmax(0, 1fr); padding: 10px 12px; }
  .ds-row .unit-field { grid-column: 2; }
  .ds-hint { grid-column: 2; }
}
input, select, textarea { width: 100%; font: 500 1rem/1.4 var(--narrow); color: var(--ink); background: #fff; border: 1px solid var(--ink-2); border-radius: 0; padding: 9px 11px; min-height: 44px; }
input:focus, select:focus, textarea:focus { outline: 3px solid var(--gas); outline-offset: 0; border-color: var(--gas); }
.unit-field { display: flex; }
.unit-field input { flex: 1; min-width: 0; text-align: right; font-weight: 700; font-size: 1.05rem; }
.unit-field span { display: flex; align-items: center; padding: 0 10px; border: 1px solid var(--ink-2); border-left: 0; background: var(--sheet-2); font: 500 .9rem var(--narrow); color: var(--ink-2); white-space: nowrap; }
.unit-field .pre { border-left: 1px solid var(--ink-2); border-right: 0; }

.results { padding: 18px 22px 22px; }
.res-big { border-bottom: 2px solid var(--ink); padding-bottom: 10px; }
.res-label { margin: 0; font: 700 .8rem/1.3 var(--narrow); letter-spacing: .1em; text-transform: uppercase; color: var(--ink-2); }
.res-num { margin: 0; }
.res-num strong { font: 800 clamp(2.6rem, 6vw, 3.6rem)/1.05 var(--sans); font-stretch: 112%; letter-spacing: -0.02em; }
.res-num span { font: 600 1.15rem var(--narrow); color: var(--ink-2); }
.streams caption { padding: 14px 0 4px; }
.streams th { position: relative; text-align: left; font: 500 1rem/1.35 var(--narrow); color: var(--ink-2); padding: 8px 8px 8px 34px; border-bottom: 1px dotted var(--rule); }
.streams td { text-align: right; font: 700 1.02rem/1.35 var(--narrow); padding: 8px 0; border-bottom: 1px dotted var(--rule); white-space: nowrap; }
.dia { position: absolute; left: 0; top: 7px; display: grid; place-items: center; width: 22px; height: 22px; background: var(--gas); color: #fff; clip-path: polygon(50% 0, 100% 50%, 50% 100%, 0 50%); font: 700 .72rem/1 var(--narrow); }
.dia-elec { background: var(--graphite); color: var(--yellow); }
.sides { display: grid; gap: 10px; margin-top: 18px; }
@media (min-width: 560px) { .sides { grid-template-columns: 1fr 1fr; } }
.side { border: 1.5px solid var(--ink); padding: 12px 14px 4px; }
.side-h { margin: 0 0 4px; font: 700 .78rem/1.3 var(--narrow); letter-spacing: .08em; text-transform: uppercase; color: var(--ink-2); }
.side-num { margin: 0 0 6px; font: 800 1.45rem/1.15 var(--sans); font-stretch: 106%; }
.side-sub { font: 400 .94rem/1.4 var(--narrow); color: var(--ink-2); }
.side-sub b { color: var(--ink); white-space: nowrap; }
.same-gas { margin: 14px 0; padding: 8px 12px; background: var(--yellow-soft); border-left: 4px solid var(--yellow); font: 600 .98rem/1.4 var(--narrow); }
.btn-line { background: none; border: 1.5px solid var(--ink); padding: 10px 14px; font: 700 .98rem/1.3 var(--narrow); color: var(--ink); cursor: pointer; text-align: left; }
.btn-line:hover { background: var(--ink); color: var(--paper); }

/* Load and site */
.loads { margin: 0 0 40px; display: grid; gap: 10px; }
@media (min-width: 820px) { .loads { grid-template-columns: repeat(3, 1fr); } }
.loads div { background: var(--paper); border: 1.5px solid var(--ink); border-top: 6px solid var(--ink); padding: 12px 16px 14px; }
.loads dt { font: 700 1rem/1.3 var(--narrow); letter-spacing: .08em; text-transform: uppercase; }
.loads dd { margin: 4px 0 0; color: var(--ink-2); font-size: .98rem; line-height: 1.5; }
.checks { list-style: none; margin: 0; padding: 0; border-bottom: 1px solid var(--rule); }
.checks li { position: relative; padding: 13px 0 13px 32px; border-top: 1px solid var(--rule); color: var(--ink-2); }
.checks li::before { content: ""; position: absolute; left: 0; top: 18px; width: 15px; height: 15px; border: 2px solid var(--ink); background: var(--paper); }
.checks b { color: var(--ink); }
.paid th { text-align: left; vertical-align: top; font: 700 1rem/1.35 var(--narrow); padding: 11px 12px 11px 0; border-top: 1px solid var(--rule); width: 44%; }
.paid td { vertical-align: top; padding: 11px 0; border-top: 1px solid var(--rule); color: var(--ink-2); }
.paid tr:last-child th, .paid tr:last-child td { border-bottom: 1px solid var(--rule); }
.small { font: 400 .95rem/1.5 var(--narrow); color: var(--ink-2); margin-top: 12px; }

/* Intake: end of the line */
.intake { background: var(--graphite); color: var(--on-dark); padding: 72px 0; scroll-margin-top: 70px; }
.intake-grid { display: grid; gap: 36px; }
@media (min-width: 980px) { .intake-grid { grid-template-columns: .85fr 1.15fr; gap: 56px; align-items: start; } }
.intake h2 { font-size: clamp(1.9rem, 4vw, 2.7rem); color: var(--on-dark); }
.intake-copy > p { color: #d3dade; font-size: 1.08rem; }
.intake-copy h3 { font: 700 .9rem/1.3 var(--narrow); letter-spacing: .1em; text-transform: uppercase; color: var(--yellow); margin-top: 28px; }
.covers { list-style: none; margin: 0 0 24px; padding: 0; }
.covers li { position: relative; padding: 8px 0 8px 24px; border-top: 1px solid var(--line-dk); color: var(--on-dark-2); }
.covers li::before { content: ""; position: absolute; left: 0; top: 16px; width: 10px; height: 10px; background: var(--gas-lt); transform: rotate(45deg); }
.fine { font: 400 .95rem/1.5 var(--narrow); color: var(--on-dark-2); border-left: 3px solid var(--line-dk); padding-left: 12px; }

.intake-form { position: relative; background: var(--paper); color: var(--ink); padding: 26px 24px 24px; }
.intake-form::before { content: ""; position: absolute; left: 0; right: 0; top: 0; height: 6px; background: var(--hazard); }
.form-title { font: 700 .95rem/1.3 var(--narrow); letter-spacing: .12em; text-transform: uppercase; margin: 4px 0 6px; padding-bottom: 10px; border-bottom: 2px solid var(--ink); }
.intake-form fieldset { border: 0; padding: 0; margin: 18px 0 0; min-width: 0; }
.intake-form legend { display: block; width: 100%; padding: 6px 10px; background: var(--sheet-2); font: 700 .8rem/1.3 var(--narrow); letter-spacing: .1em; text-transform: uppercase; color: var(--ink-2); }
.intake-form label { display: block; font: 600 .96rem/1.3 var(--narrow); color: var(--ink); margin: 12px 0 5px; }
.intake-form .row { display: grid; gap: 0 16px; }
@media (min-width: 640px) { .intake-form .row { grid-template-columns: 1fr 1fr; } }
.intake-form textarea { min-height: 110px; resize: vertical; }
.role { display: flex; flex-wrap: wrap; gap: 8px; }
.role legend { margin-bottom: 6px; }
.intake-form .role label { display: inline-flex; align-items: center; gap: 8px; margin: 0; padding: 9px 12px; border: 1px solid var(--ink-2); background: #fff; cursor: pointer; font-weight: 600; }
.role input { width: auto; min-height: 0; margin: 0; accent-color: var(--gas); }
.intake-form .role label:has(input:checked) { background: var(--graphite); border-color: var(--graphite); color: var(--on-dark); }
.intake-form .btn-yellow { margin-top: 18px; border-color: var(--graphite); }
.intake-form .btn-yellow:hover { background: var(--graphite); color: var(--yellow); }
.form-feedback:empty { display: none; }
.form-feedback, [data-intake-status] { margin: 14px 0 0; padding: 12px 14px; font: 500 1rem/1.5 var(--narrow); color: var(--ink); }
.form-feedback.success { background: #e2edf7; border-left: 4px solid var(--gas); }
.form-feedback.error, [data-intake-status] { background: #f8e6e3; border-left: 4px solid var(--alarm); }

/* Legend sheet */
.legend-sec { padding: 64px 0 72px; background: var(--sheet); }
.legend-head { display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 20px; border-bottom: 2px solid var(--ink); margin-bottom: 8px; }
.legend-head h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); margin-bottom: 10px; }
.legend-head p { color: var(--ink-2); margin-bottom: 12px; }
.legend { margin: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(min(320px, 100%), 1fr)); gap: 0 36px; }
.legend div { padding: 12px 0 14px; border-bottom: 1px solid var(--rule); scroll-margin-top: 90px; }
.legend div:target { background: var(--yellow-soft); box-shadow: -10px 0 0 var(--yellow-soft), 10px 0 0 var(--yellow-soft); }
.legend dt { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 1.04rem; line-height: 1.3; }
.legend abbr, .legend .sym { flex: none; min-width: 64px; text-align: center; text-decoration: none; font: 700 .78rem/1.5 var(--narrow); letter-spacing: .06em; border: 1.5px solid var(--ink); background: var(--paper); padding: 1px 6px; }
.legend abbr, .legend .sym { display: inline-grid; place-items: center; height: 28px; align-self: center; }
.legend .sym svg { width: 50px; height: 20px; display: block; }
.sym .s-ln { stroke: var(--ink); stroke-width: 1.6; fill: none; }
.sym .s-gas { stroke: var(--gas); stroke-width: 2.4; fill: none; }
.sym .s-blind { stroke: var(--ink); stroke-width: 3.2; }
.sym .s-v { fill: var(--paper); stroke: var(--ink); stroke-width: 1.2; }
.sym .s-shut { fill: var(--ink); stroke: var(--ink); stroke-width: 1.2; stroke-linejoin: round; }
.sym .s-box { fill: var(--paper); stroke: var(--ink); stroke-width: 1.6; }
.sym .s-flame { fill: var(--yellow); stroke: var(--ink); stroke-width: 1; }
.legend dd { margin: 6px 0 0 74px; color: var(--ink-2); font-size: .97rem; line-height: 1.5; }
@media (max-width: 420px) { .legend dd { margin-left: 0; } }

/* Footer */
.footer { background: var(--graphite-4); color: var(--on-dark-2); padding: 48px 0 28px; font: 400 1rem/1.6 var(--narrow); }
.footer a { color: var(--on-dark); text-decoration-color: var(--yellow); }
.footer a:hover { color: var(--yellow); }
.footer .brand { color: var(--on-dark); margin-bottom: 12px; text-decoration: none; }
.footer-grid { display: grid; gap: 28px; }
@media (min-width: 820px) { .footer-grid { grid-template-columns: 1.3fr 1fr 1fr; } }
.foot-h { font: 700 .8rem/1.3 var(--narrow); letter-spacing: .12em; text-transform: uppercase; color: var(--yellow); margin: 6px 0 8px; }
.footer address { font-style: normal; }
.footer-base { margin-top: 32px; padding-top: 18px; border-top: 1px solid var(--line-dk); font-size: .92rem; }
.footer-base p { margin: 0 0 6px; overflow-wrap: anywhere; }

/* Privacy and terms */
.legal { max-width: 800px; margin: 0 auto; padding: 56px 20px 80px; }
.legal h1 { color: var(--ink); font-size: clamp(2rem, 5vw, 2.8rem); margin-bottom: 10px; }
.legal .meta { font: 500 .95rem var(--narrow); color: var(--ink-2); border-bottom: 2px solid var(--ink); padding-bottom: 14px; margin-bottom: 26px; }
.legal h2 { font-size: 1.35rem; font-stretch: 104%; margin-top: 2em; }
.legal p, .legal li { color: var(--ink-2); }
.legal ul { padding-left: 1.3rem; }
.legal li { margin-bottom: .5em; }
.legal .callout { background: var(--paper); border: 1.5px solid var(--ink); border-left: 8px solid var(--gas); padding: 14px 18px; }
.legal .callout p { margin: 0; color: var(--ink); }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; animation: none !important; }
}
@media print {
  .masthead, .intake-form, .actions, .nav, .kw-bar, .noscript-note { display: none; }
  body, .hero, .intake, .footer, .sheet, .legend-sec { background: #fff; color: #000; }
  .hero h1, .lead, .who, .needs, .needs *, .intake h2, .intake-copy > p, .intake-copy h3, .covers li, .fine, .footer, .footer a, .foot-h, .brand, .word, .word span { color: #000 !important; }
  .needs { background: #fff; border-color: #000; }
  .drawing { -webkit-print-color-adjust: exact; print-color-adjust: exact; }
  .print-contact { display: block !important; font-weight: 700; color: #000; margin-top: 12px; }
}

/* phone numbers never wrap */
a[href^="tel:"] { white-space: nowrap; }

/* Screen notes, calculator warnings, form alternatives */
[hidden] { display: none !important; }
.ds-warn { color: var(--alarm); font-weight: 600; }
.example-note { margin: 0 0 10px; padding: 6px 10px; background: var(--yellow-soft); border-left: 4px solid var(--yellow); font: 600 .95rem/1.4 var(--narrow); color: var(--ink); }
.res-basis { margin: 6px 0 0; font: 400 .92rem/1.4 var(--narrow); color: var(--ink-2); }
.basis-note { margin: 12px 0 0; }
.kw-bar { display: none; }
.kw-bar[hidden] { display: none !important; }
@media (max-width: 999px) {
  .kw-bar { display: block; position: sticky; bottom: 0; z-index: 5; background: var(--graphite); color: var(--on-dark); border-top: 4px solid var(--yellow); padding: 8px 16px; font: 600 1rem/1.3 var(--narrow); }
  .kw-bar strong { font: 800 1.5rem/1 var(--sans); color: var(--yellow); }
}
.noscript-note { margin: 0 0 18px; padding: 12px 14px; background: var(--yellow-soft); border-left: 4px solid var(--yellow); color: var(--ink); font: 600 1rem/1.5 var(--narrow); }
.noscript-note a { color: var(--ink); }
.form-alt { margin: 14px 0 0; font: 400 .95rem/1.5 var(--narrow); color: var(--ink-2); }
.print-contact { display: none; }
#legend { scroll-margin-top: 80px; }

/* Phones: header is static, so anchors need little offset; bigger text and tap targets */
@media (max-width: 760px) {
  .stage { scroll-margin-top: 16px; }
  .intake { scroll-margin-top: 16px; }
  #legend { scroll-margin-top: 16px; }
  .spec td, .rules td, .spec tbody th, .rules tbody th, .qa dd, .legend dd, .ds-row label, .intake-form label, .streams th, .streams td, .small { font-size: 1rem; }
  .ds-hint, .fine, .form-alt, .res-basis { font-size: 1rem; }
  .brand { min-height: 44px; }
  .nav .nav-cta { padding: 12px 14px; }
  .text-link { display: inline-block; padding: 12px 0; }
  .footer-grid a, .footer-base a { display: inline-block; padding: 11px 0; }
  .form-alt { line-height: 1.6; }
  .intake-form .role label { min-height: 44px; }
}

/* Guides: sourced explainer pages. Same sheet, tags and rules as the home page. */
.nav .nav-guides { display: none; }
@media (min-width: 1000px) { .nav .nav-guides { display: inline; } }

.guides { margin-top: 40px; scroll-margin-top: 80px; }
.guides h3 { font: 700 .82rem/1.3 var(--narrow); letter-spacing: .1em; text-transform: uppercase; color: var(--ink-2); margin: 0 0 10px; }
.guide-cards { list-style: none; margin: 0; padding: 0; display: grid; gap: 12px; }
@media (min-width: 760px) { .guide-cards { grid-template-columns: 1fr 1fr; } }
.guide-cards a { display: block; height: 100%; padding: 14px 18px 16px; background: var(--paper); border: 1.5px solid var(--ink); border-top: 6px solid var(--gas); text-decoration: none; color: var(--ink); }
.guide-cards a:hover { background: var(--yellow-soft); color: var(--ink); }
.guide-cards .g-k { display: block; font: 700 .8rem/1.3 var(--narrow); letter-spacing: .1em; text-transform: uppercase; color: var(--ink-2); }
.guide-cards b { display: block; font: 700 1.12rem/1.3 var(--sans); margin: 3px 0 6px; }
.guide-cards .g-d { display: block; font: 400 .98rem/1.45 var(--narrow); color: var(--ink-2); }
.guides .small { margin-top: 12px; }

.g-head { background: var(--graphite); color: var(--on-dark); padding: 36px 0 40px; border-bottom: 6px solid var(--yellow); }
.g-head :focus-visible, .g-next :focus-visible { outline-color: var(--yellow); }
.crumbs ol { list-style: none; display: flex; flex-wrap: wrap; gap: 2px 8px; margin: 0 0 20px; padding: 0; font: 600 .95rem/1.4 var(--narrow); letter-spacing: .02em; }
.crumbs li + li::before { content: "/"; margin-right: 8px; color: var(--on-dark-2); }
.crumbs a { color: var(--gas-lt); }
.crumbs a:hover { color: var(--on-dark); }
.crumbs [aria-current] { color: var(--on-dark-2); }
.g-head h1 { font-size: clamp(1.9rem, 4.4vw, 3rem); line-height: 1.06; max-width: 19em; color: var(--on-dark); margin-bottom: 16px; }
.g-head .dek { font-size: 1.14rem; color: #d3dade; max-width: 42em; margin-bottom: 18px; }
.g-meta { list-style: none; display: flex; flex-wrap: wrap; gap: 4px 24px; margin: 0 0 16px; padding: 0; font: 600 .95rem/1.4 var(--narrow); color: var(--on-dark-2); }
.g-legal { margin: 0; max-width: 44em; border-left: 3px solid var(--yellow); padding-left: 12px; font: 500 1rem/1.5 var(--narrow); color: var(--on-dark); }

.g-body { padding-top: 32px; padding-bottom: 56px; }
.g-answer { background: var(--paper); border: 1.5px solid var(--ink); border-left: 8px solid var(--yellow); padding: 18px 22px 8px; margin-bottom: 28px; }
.g-tag { display: block; margin: 0 0 8px; font: 700 .82rem/1.3 var(--narrow); letter-spacing: .1em; text-transform: uppercase; color: var(--ink-2); }
.g-answer p { max-width: 50em; }
.toc { margin: 0 0 8px; padding: 14px 18px 10px; border: 1.5px solid var(--ink); background: var(--sheet-2); }
.toc h2 { font: 700 .82rem/1.3 var(--narrow); letter-spacing: .1em; text-transform: uppercase; color: var(--ink-2); margin: 0 0 8px; }
.toc ol { margin: 0; padding-left: 1.3rem; columns: 1; }
@media (min-width: 760px) { .toc ol { columns: 2; column-gap: 32px; } }
.toc li { margin-bottom: 4px; break-inside: avoid; }
.g-sec { padding: 36px 0 4px; scroll-margin-top: 80px; border-top: 2px solid var(--ink); margin-top: 32px; }
.g-sec h2 { display: flex; align-items: center; gap: 14px; font-size: clamp(1.5rem, 3vw, 2.05rem); max-width: 22em; }
.g-sec h3 { margin-top: 1.4em; }
.sn { flex: none; display: grid; place-items: center; width: 40px; height: 40px; border: 2.5px solid var(--ink); border-radius: 50%; background: var(--paper); font: 700 1.05rem/1 var(--narrow); }
.prose { max-width: 46em; }
.prose ul, .prose ol { padding-left: 1.3rem; margin: 0 0 1em; }
.prose li { margin-bottom: .45em; }
.g-sec table { margin: 6px 0 28px; }
.g-table { background: var(--paper); border: 1.5px solid var(--ink); }
.g-table thead th { background: var(--graphite); color: var(--on-dark); font: 700 .82rem/1.3 var(--narrow); letter-spacing: .08em; text-transform: uppercase; text-align: left; padding: 10px 14px; }
.g-table tbody th { font: 700 1.02rem/1.35 var(--narrow); text-align: left; vertical-align: top; padding: 13px 14px; border-top: 1px solid var(--rule); width: 17%; }
.g-table td { vertical-align: top; padding: 13px 14px; border-top: 1px solid var(--rule); color: var(--ink-2); font-size: .98rem; line-height: 1.5; }
.g-table td ul { margin: 0; padding-left: 1.1rem; }
.g-table td li { margin-bottom: .3em; }
.g-table .rl { display: block; margin-top: 2px; font: 500 .9rem/1.3 var(--narrow); color: var(--ink-2); }
.g-table em { font-style: italic; }
.g-quote { margin: 0 0 22px; padding: 14px 18px 10px; background: var(--paper); border: 1.5px solid var(--ink); border-left: 8px solid var(--gas); max-width: 46em; }
.g-quote p { margin: 0 0 .6em; color: var(--ink); }
.g-cite { font: 600 .92rem/1.4 var(--narrow); color: var(--ink-2); }
.g-example { margin: 0 0 28px; padding: 16px 20px 6px; background: var(--yellow-soft); border: 1.5px solid var(--ink); border-left: 8px solid var(--yellow); max-width: 46em; }
.g-example p { color: var(--ink); }
.g-time { list-style: none; margin: 0 0 24px; padding: 0; max-width: 46em; border-top: 1px solid var(--rule); }
.g-time li { display: grid; grid-template-columns: 9.5rem minmax(0, 1fr); gap: 4px 16px; padding: 10px 0; border-bottom: 1px solid var(--rule); margin: 0; }
.g-time b { font: 700 1rem/1.4 var(--narrow); }
@media (max-width: 560px) { .g-time li { grid-template-columns: 1fr; } }
.src { margin: 0; padding-left: 1.5rem; }
.src li { margin-bottom: 14px; }
.src b { display: block; }
.src .sec { display: block; color: var(--ink-2); font: 400 .97rem/1.45 var(--narrow); }
.src .u { display: block; overflow-wrap: anywhere; font: 500 .95rem/1.4 var(--narrow); }
.src .op { display: block; color: var(--ink-2); font: 400 .9rem/1.4 var(--narrow); }
.checked { max-width: 46em; color: var(--ink-2); }

.g-next { background: var(--graphite); color: var(--on-dark); padding: 56px 0 60px; }
.g-next h2 { color: var(--on-dark); font-size: clamp(1.6rem, 3.4vw, 2.3rem); max-width: 20em; }
.g-next p { color: #d3dade; max-width: 44em; }
.g-next .actions { margin-top: 22px; }
.g-next a:not(.btn) { color: var(--yellow); }
.g-next a:not(.btn):hover { color: var(--on-dark); }

@media (max-width: 760px) {
  .g-head { padding: 28px 0 32px; }
  .g-body { padding-top: 24px; }
  .g-sec { scroll-margin-top: 16px; }
  .g-answer { padding: 16px 16px 6px; }
  .g-table td, .g-table tbody th, .toc li, .prose li { font-size: 1rem; }
  table.stack caption { padding-left: 2px; padding-right: 2px; }
  .g-table td ul { padding-left: 1.2rem; }
}
@media (max-width: 420px) {
  .sn { width: 34px; height: 34px; font-size: .95rem; }
  .g-sec h2 { gap: 10px; }
}
@media print {
  .g-head, .g-next { background: #fff; color: #000; border-color: #000; }
  .g-head *, .g-next *, .g-next a:not(.btn) { color: #000 !important; }
  .g-next .actions { display: none; }
}
@media (min-width: 820px) { .footer-grid { grid-template-columns: 1.3fr 1fr 1fr 1.3fr; } }
.foot-guides { margin: 0; }

/* Portable worksheet actions */
[hidden]{display:none!important}.draft-tools{margin:1.25rem 0;max-width:100%;overflow-wrap:anywhere}.draft-actions{display:flex;flex-wrap:wrap;align-items:center;gap:.75rem}.draft-actions button,.draft-actions a{font:inherit;font-size:1rem;line-height:1.4;color:inherit;background:transparent;border:1px solid currentColor;border-radius:0;padding:.65rem .8rem;min-height:44px;text-decoration:underline;cursor:pointer}.draft-actions button:focus-visible,.draft-actions a:focus-visible{outline:3px solid currentColor;outline-offset:3px}.draft-status{font-size:1rem}.draft-fallback textarea{display:block;width:100%;max-width:100%;font:inherit;line-height:1.5;resize:vertical}.draft-fallback label{display:block}.request-route{font-size:1rem}@media print{.draft-actions,.draft-status,.draft-fallback{display:none!important}}

@media print{body.print-worksheet > :not(#draft-print-sheet){display:none!important}body.print-worksheet #draft-print-sheet{display:block!important;color:#111;background:#fff;padding:1cm}#draft-print-sheet pre{white-space:pre-wrap;overflow-wrap:anywhere;font:12pt/1.5 sans-serif}}