@font-face {
  font-family: "Archivo";
  src: url("fonts/archivo-latin-var.woff2") format("woff2");
  font-weight: 100 900;
  font-stretch: 62% 125%;
  font-style: normal;
  font-display: swap;
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

:root {
  --cover: #F4C200;
  --cover-shade: #E3B200;
  --cover-ink-2: #463900;
  --page: #FBFCFA;
  --grid: #DDEBEE;
  --rule: #A9CDD3;
  --ink: #151514;
  --ink-2: #3D4241;
  --ink-3: #59605F;
  --link-line: #B98F00;
  --resin: #F4C200;
  --water: #2F78A8;
  --red: #C42A1F;
  --highlight: rgba(244, 194, 0, .55);
  --font: "Archivo", "Helvetica Neue", Arial, sans-serif;
  --m: 24px;
  --wrap: 1200px;
  --gutter: 24px;
  --measure: 68ch;
  --ease-out: cubic-bezier(.22, 1, .36, 1);
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scrollbar-color: var(--ink-3) var(--page); caret-color: var(--ink); }
body { margin: 0; background: var(--page); color: var(--ink); font: 400 1.0625rem/1.6 var(--font); font-stretch: 100%; }
img, svg { max-width: 100%; height: auto; }
::selection { background: var(--cover); color: var(--ink); }
a { color: var(--ink); text-decoration-thickness: 2px; text-decoration-color: var(--link-line); text-underline-offset: .2em; }
a:hover { text-decoration-color: var(--ink); }
:focus-visible { outline: 3px solid var(--ink); outline-offset: 3px; }
table, .toc-pg, .call-label-num, .running-head { font-variant-numeric: tabular-nums; }

.wrap {
  max-width: var(--wrap);
  margin: 0 auto;
  padding-left: max(var(--gutter), env(safe-area-inset-left, 0px));
  padding-right: max(var(--gutter), env(safe-area-inset-right, 0px));
}

h1, h2, h3 { margin: 0; text-wrap: balance; font-family: var(--font); }
h1 { font-weight: 800; font-stretch: 112%; font-size: clamp(2.15rem, 4.2vw, 3.5rem); line-height: 1; letter-spacing: -.012em; }
h2 { font-weight: 800; font-stretch: 112%; font-size: clamp(1.55rem, 2.5vw, 2.05rem); line-height: 1.1; letter-spacing: -.01em; margin: 2.6em 0 .55em; }
h3 { font-weight: 750; font-size: 1.2rem; line-height: 1.25; margin-bottom: .3em; }
p { margin: 0 0 1em; }
strong { font-weight: 700; }

.skip { position: absolute; left: -9999px; }
.skip:focus { left: 16px; top: 8px; z-index: 60; background: var(--page); padding: 8px 12px; }

.label-type, .running-head, .crumbs ol, .call-label-head, .fig-no, .entry-art figcaption, th, .footer-facts dt, .site-footer h2 {
  font-weight: 700; font-stretch: 87%; text-transform: uppercase; letter-spacing: .1em;
}

mark.confirm {
  background: #FFF3BF;
  color: var(--ink);
  font: 600 .84em/1.45 var(--font);
  font-stretch: 87%;
  padding: .08em .35em;
  border: 1px dashed #8A6D00;
  border-radius: 2px;
  -webkit-box-decoration-break: clone;
  box-decoration-break: clone;
}


/* Grid paper */
.sheet, .spread {
  background-color: var(--page);
  background-image: linear-gradient(var(--grid) 1px, transparent 1px), linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: var(--m) var(--m);
  background-position: calc(50% - (var(--wrap) / 2 - var(--m) / 2)) 0;
}
@media (max-width: 1248px) {
  .sheet, .spread { background-position: 0 0; }
}

/* Cover label: the phone number */
.call-label {
  display: inline-grid; justify-items: start; gap: 3px;
  background: #fff; color: var(--ink); text-decoration: none;
  border: 2px solid var(--ink); padding: 7px 14px 9px;
  transition: background-color .15s, color .15s;
}
.call-label-head { font-size: .72rem; line-height: 1.2; align-self: stretch; padding-bottom: 4px; border-bottom: 1px solid currentColor; }
.call-label-num { font-weight: 800; font-stretch: 112%; font-size: 1.12rem; line-height: 1.1; white-space: nowrap; }
.call-label:hover, .call-label:focus-visible { background: var(--ink); color: #fff; }
.call-label-big { padding: 12px 22px 16px; gap: 6px; }
.call-label-big .call-label-head { font-size: .78rem; padding-bottom: 6px; }
.call-label-big .call-label-num { font-size: clamp(1.9rem, 3.6vw, 3.25rem); letter-spacing: -.01em; }
.call-label mark.confirm { font-size: .5em; }

.quote-link { font-weight: 700; text-decoration-color: currentColor; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font: 800 1rem/1.15 var(--font); padding: 14px 22px; border: 2px solid var(--ink);
  text-decoration: none; cursor: pointer; text-align: center; color: var(--ink);
}
.btn-primary { background: var(--cover); }
.btn-primary:hover { background: var(--ink); color: var(--cover); }

/* Header: the top edge of the cover */
.site-header { background: var(--cover); position: sticky; top: env(safe-area-inset-top, 0px); z-index: 20; box-shadow: 0 1px 0 rgba(21, 21, 20, .2); }
.header-row { display: flex; align-items: center; gap: 20px; min-height: 72px; position: relative; }
.brand { display: flex; align-items: center; gap: 12px; color: var(--ink); text-decoration: none; margin-right: auto; }
.brand svg { width: 36px; height: 36px; flex: none; }
.brand-name { font-weight: 800; font-stretch: 112%; font-size: 1.04rem; line-height: 1.05; }
.brand-name span { display: block; font-weight: 700; font-stretch: 125%; font-size: .7rem; letter-spacing: .2em; text-transform: uppercase; margin-bottom: 3px; }

.site-nav > ul { list-style: none; margin: 0; padding: 0; display: flex; align-items: center; gap: 2px; }
.site-nav li { position: relative; }
.site-nav > ul > li > a { display: block; padding: 8px 10px; color: var(--ink); text-decoration: none; font-weight: 650; font-size: .95rem; border-bottom: 2px solid transparent; }
.site-nav > ul > li > a:hover { border-bottom-color: var(--ink); }
.site-nav > ul > li > a[aria-current="page"], .site-nav > ul > li > a.here { border-bottom-color: var(--ink); }
.site-nav .sub {
  display: none; position: absolute; top: calc(100% + 2px); left: 0; min-width: 300px; margin: 0; padding: 10px 16px 12px;
  list-style: none; background: var(--page); border: 2px solid var(--ink);
  box-shadow: 0 18px 30px -18px rgba(21, 21, 20, .45);
}
.site-nav li:hover > .sub, .site-nav li:focus-within > .sub { display: block; }

.nav-pg { font-size: .72rem; font-weight: 700; color: var(--cover-ink-2); margin-left: 5px; font-variant-numeric: tabular-nums; }
.toc { display: flex; align-items: baseline; gap: 8px; padding: 6px 0; color: var(--ink); text-decoration: none; font-size: .95rem; }
.toc-l { display: flex; flex: 1; align-items: baseline; min-width: 0; }
.toc-l::after { content: ""; flex: 1; min-width: 16px; margin: 0 2px 0 8px; border-bottom: 2px dotted var(--ink-3); transform: translateY(-.25em); }
.toc-pg { font-weight: 700; min-width: 2ch; text-align: right; }
.toc:hover .toc-l, .toc[aria-current="page"] .toc-l { text-decoration: underline; text-decoration-thickness: 2px; text-underline-offset: .2em; }
.toc[aria-current="page"] { font-weight: 700; }

.menu-btn { display: none; }

/* Home: the open spread */
.spread { position: relative; }
.spread::before { content: ""; position: absolute; inset: 0 50% 0 0; background: var(--cover); }
.spread-row { position: relative; display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
.cover { padding: 56px 40px 64px 0; display: flex; flex-direction: column; align-items: flex-start; }
.cover h1, .page-head h1 { text-transform: uppercase; font-stretch: 108%; line-height: .98; }
.cover h1 { font-size: clamp(2.4rem, 4.45vw, 4rem); font-stretch: 102%; }
.cover .lede { font-size: 1.16rem; line-height: 1.5; max-width: 42ch; margin: 24px 0 32px; }
.cover-actions { display: grid; justify-items: start; gap: 14px; }
.cover-facts { margin: 32px 0 0; padding-top: 12px; border-top: 1.5px solid var(--ink); font-size: .9rem; color: var(--cover-ink-2); align-self: stretch; }
.page-one { position: relative; padding: 24px 0 40px 48px; }
.page-one::before { content: ""; position: absolute; top: 0; bottom: 0; left: 0; width: 36px; background: linear-gradient(90deg, rgba(21, 21, 20, .13), rgba(21, 21, 20, 0)); pointer-events: none; }
.spread + .sheet { box-shadow: inset 0 2px 0 var(--ink); }

.running-head { display: flex; justify-content: space-between; gap: 16px; margin: 0; padding: 22px 0 6px; border-bottom: 1.5px solid var(--ink); font-size: .72rem; color: var(--ink-3); }

/* Fig. 1 */
.fig1 { margin: 24px 0 0; }
.fig1-art { display: block; width: 100%; max-width: 540px; margin: 0 auto; fill: none; }
.fig1-photo { display: block; width: 100%; max-width: 540px; height: auto; aspect-ratio: 4 / 3; object-fit: cover; margin: 0 auto; border: 2px solid var(--ink); background: var(--cover-shade); }
.fig1 .paper { fill: var(--page); }
.fig1 .ink { stroke: var(--ink); }
.fig1-ties circle { fill: #98A19F; }
.fig1-resin, .fig1-sec-resin { fill: none; stroke: var(--resin); stroke-width: 9; stroke-linecap: round; stroke-linejoin: round; stroke-dasharray: 1; stroke-dashoffset: 0; }
.fig1-sec-resin { stroke-width: 6; }
.fig1-port circle { fill: var(--ink); }
.fig1-drops { fill: var(--water); opacity: 0; }
.fig1-labels text { fill: var(--ink); font: 700 13.5px var(--font); font-stretch: 87%; letter-spacing: .06em; paint-order: stroke; stroke: var(--page); stroke-width: 4px; stroke-linejoin: round; }
.fig1-labels .fig1-title { font-size: 13px; fill: var(--ink-3); letter-spacing: .1em; }
.fig1-labels .fig1-a { font-size: 15px; font-weight: 800; }
.fig1-leaking { opacity: 0; }
.fig1 figcaption { max-width: 540px; margin: 16px auto 0; font-size: .93rem; color: var(--ink-2); }
.fig-no { font-size: .74rem; color: var(--ink); margin-right: 6px; }
.fig1-replay { font: 700 .93rem var(--font); color: var(--ink); background: none; border: 0; padding: 0; margin-left: 4px; cursor: pointer; text-decoration: underline; text-decoration-thickness: 2px; text-decoration-color: var(--link-line); text-underline-offset: .2em; }
.fig1-replay:hover { text-decoration-color: var(--ink); }

.fig1.armed:not(.run) .fig1-resin, .fig1.armed:not(.run) .fig1-sec-resin { stroke-dashoffset: 1; }
.fig1.armed:not(.run) .fig1-port circle { fill: var(--page); }
.fig1.armed:not(.run) .fig1-drops, .fig1.armed:not(.run) .fig1-leaking { opacity: 1; }
.fig1.armed:not(.run) .fig1-sealed { opacity: 0; }

/* Inner page head: the cover band */
.page-head { background: var(--cover); }
.page-head .wrap { padding-block: 20px 48px; }
.page-head .lede { font-size: 1.14rem; line-height: 1.55; max-width: 60ch; margin: 18px 0 0; }
.page-head h1 { font-size: clamp(2rem, 3.6vw, 3.25rem); max-width: 17em; }
.head-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 14px 24px; margin-top: 28px; }
.crumbs ol { list-style: none; display: flex; flex-wrap: wrap; gap: 4px 8px; margin: 0 0 28px; padding: 0; font-size: .72rem; color: var(--cover-ink-2); }
.crumbs li + li::before { content: "/"; margin-right: 8px; }
.crumbs a { color: var(--ink); text-decoration-color: currentColor; text-decoration-thickness: 1px; }
.page-head.has-photo .wrap { display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(0, .6fr); column-gap: 48px; align-items: end; }
.page-head.has-photo .crumbs { grid-column: 1 / -1; }
.head-photo { margin: 0; }
.head-photo img { display: block; width: 100%; height: auto; aspect-ratio: 4 / 3; object-fit: cover; border: 2px solid var(--ink); background: var(--cover-shade); }
.head-photo figcaption { margin-top: 8px; font-size: .78rem; color: var(--cover-ink-2); }
.head-photo figcaption a { color: inherit; text-decoration-color: currentColor; }

/* Content on the page */
.content { padding-block: 8px 96px; }
.content > * { max-width: var(--measure); }
.content > .entries, .content > .cta { max-width: none; }
.content > .table-wrap, .content > .gauge, .content > .steps, .content > .faq, .content > .quote-form { max-width: 880px; }
.content > h2:first-child { margin-top: 1.6em; }
.content ul, .content ol { padding-left: 1.25em; }
.content li { margin-bottom: .45em; }
.content li::marker { color: var(--ink-3); }

.answer { margin: 48px 0 32px; padding: 20px 0 6px; border-top: 2px solid var(--ink); border-bottom: 1px solid var(--ink); font-size: 1.18rem; line-height: 1.55; }
.answer p { margin-bottom: .8em; }
.answer p > strong:first-child { background: linear-gradient(transparent 10%, var(--highlight) 10%, var(--highlight) 90%, transparent 90%); padding: 0 .12em; -webkit-box-decoration-break: clone; box-decoration-break: clone; }

.entries { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); column-gap: 48px; margin: 16px 0 24px; }
.entry { padding: 22px 0 10px; border-top: 1.5px solid var(--ink); }
.entry.has-art { display: grid; grid-template-columns: 120px minmax(0, 1fr); column-gap: 24px; align-items: start; }
.entry-art { margin: 4px 0 0; }
.entry-art figcaption { margin-top: 6px; font-size: .72rem; color: var(--ink-3); }
.entry-text p { font-size: .98rem; color: var(--ink-2); margin-bottom: .7em; }
.entry-fig { display: block; width: 120px; height: 84px; fill: none; stroke: var(--ink); stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round; }
.entry-fig .r { stroke: var(--resin); stroke-width: 5; }
.entry-fig .rf, .entry-fig .rdot { fill: var(--resin); }
.entry-fig .rdot { stroke: none; }
.entry-fig .w { stroke: var(--water); }
.entry-fig .wf { fill: var(--water); stroke: none; }
.entry-fig .s, .entry-fig .hatch { stroke: #7C8483; stroke-width: .9; }
.entry-fig .g { stroke: #7C8483; stroke-width: 3; }
.entry-fig .p { fill: var(--page); stroke: none; }
.entry-fig .dot circle { fill: #98A19F; stroke: none; }

.steps ol { list-style: none; counter-reset: step; padding: 0; margin: 16px 0 28px; border-top: 2px solid var(--ink); border-bottom: 2px solid var(--ink); position: relative; }
.steps ol::before { content: ""; position: absolute; top: 0; bottom: 0; left: 56px; border-left: 1.5px solid var(--ink); }
.steps li { counter-increment: step; position: relative; margin: 0; padding: 16px 0 16px 76px; min-height: 60px; }
.steps li + li { border-top: 1px solid var(--rule); }
.steps li::before { content: counter(step); position: absolute; left: 0; top: 13px; width: 44px; text-align: right; font-weight: 800; font-stretch: 112%; font-size: 1.7rem; line-height: 1; }

.table-wrap { overflow-x: auto; margin: 16px 0 28px; background: var(--page); border-top: 2px solid var(--ink); border-bottom: 2px solid var(--ink); }
table { border-collapse: collapse; width: 100%; font-size: .97rem; }
th, td { padding: 11px 14px; text-align: left; vertical-align: top; }
th { font-size: .72rem; line-height: 1.35; border-bottom: 1.5px solid var(--ink); }
td { border-bottom: 1px solid var(--rule); }
th + th, td + td { border-left: 1px solid var(--rule); }
tbody tr:last-child td { border-bottom: 0; }
td:first-child { font-weight: 650; }

.faq { border-top: 2px solid var(--ink); margin-top: 8px; }
.faq details { border-bottom: 1px solid var(--rule); }
.faq summary { cursor: pointer; list-style: none; position: relative; padding: 16px 48px 16px 0; font-weight: 750; font-size: 1.12rem; line-height: 1.3; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::before, .faq summary::after { content: ""; position: absolute; right: 10px; top: 50%; width: 16px; height: 2px; margin-top: -1px; background: var(--ink); transition: transform .25s var(--ease-out); }
.faq summary::after { transform: rotate(90deg); }
.faq details[open] summary::after { transform: rotate(0deg); }
.faq summary:hover { text-decoration: underline; text-decoration-thickness: 2px; text-decoration-color: var(--link-line); text-underline-offset: .2em; }
.faq details > :not(summary) { max-width: var(--measure); }
.faq details[open] > :last-child { margin-bottom: 18px; }

/* Closing block: the inside of the back cover, running into the footer */
.cta {
  background: var(--cover); margin-top: 96px; padding: 56px 0 64px;
  box-shadow: 0 0 0 100vmax var(--cover); clip-path: inset(0 -100vmax);
  display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 28px 64px; align-items: end;
}
.cta h2 { margin-top: 0; }
.cta-copy { max-width: 56ch; }
.cta-copy p:last-child { margin-bottom: 0; }
.cta a.button { display: inline-flex; margin-top: 4px; padding: 12px 18px; border: 2px solid var(--ink); color: var(--ink); font-weight: 800; text-decoration: none; }
.cta a.button:hover { background: var(--ink); color: var(--cover); }
.content:has(> .cta:last-child) { padding-bottom: 0; }

/* Crack width scale */
.gauge { margin: 24px 0 28px; }
.gauge-scale { position: relative; }
.gauge svg { display: block; width: 100%; overflow: visible; }
.gauge-body { fill: none; stroke: var(--ink); stroke-width: 1.5; }
.gauge-watch { fill: var(--highlight); }
.gauge-inch path, .gauge-ticks path { stroke: var(--ink); stroke-width: 1.2; }
.gauge-inch text { font: 700 15px var(--font); fill: var(--ink-2); }
.gauge-mm text { font: 700 16px var(--font); fill: var(--ink); text-anchor: middle; }
.gauge-mm .gauge-unit { text-anchor: start; font-weight: 600; fill: var(--ink-2); }
.gauge-zones { list-style: none; margin: 8px calc(48 / 548 * 100%) 0 calc(20 / 548 * 100%); padding: 0; display: grid; grid-template-columns: 76.2fr 228.6fr 175.2fr; font-size: .86rem; font-weight: 700; line-height: 1.25; }
.gauge-zones li { margin: 0; padding: 6px 6px 0 0; border-top: 3px solid var(--ink); }
.gauge-zones .z-watch { border-top-color: var(--cover); }
.gauge-zones .z-bad { border-top-color: var(--red); color: var(--red); }
.gauge figcaption { font-size: .93rem; color: var(--ink-2); margin-top: 14px; }

/* Quote form: a slip on the page */
.quote-form { background: #fff; border: 2px solid var(--ink); padding: 24px; margin: 28px 0 8px; display: grid; gap: 20px; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.field { margin: 0; padding: 0; border: 0; display: grid; gap: 6px; min-width: 0; }
.field label, .field legend { font-weight: 700; font-size: .95rem; padding: 0; }
.opt { font-weight: 400; color: var(--ink-3); }
input, textarea { font: inherit; width: 100%; padding: 11px 12px; border: 1.5px solid var(--ink-3); border-radius: 0; background: #fff; color: var(--ink); }
input:hover, textarea:hover { border-color: var(--ink); }
input:focus, textarea:focus { border-color: var(--ink); outline: none; box-shadow: 0 0 0 3px var(--highlight); }
input[type="file"] { padding: 9px; background: var(--page); }
input[type="file"]::file-selector-button { font: 700 .9rem var(--font); margin-right: 12px; padding: 8px 12px; border: 1.5px solid var(--ink); background: var(--cover); color: var(--ink); cursor: pointer; }
.choices { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 6px; }
.choices label { display: inline-flex; align-items: center; gap: 8px; border: 1.5px solid var(--ink-3); padding: 8px 12px; font-weight: 500; cursor: pointer; background: #fff; }
.choices label:hover { border-color: var(--ink); }
.choices label:has(input:checked) { border-color: var(--ink); background: var(--highlight); }
.choices label:has(input:focus-visible) { outline: 3px solid var(--ink); outline-offset: 2px; }
.choices input { width: auto; margin: 0; accent-color: var(--ink); }
.form-actions { margin: 0; }
.quote-form .form-note { margin: 0; font-size: .85rem; color: var(--ink-2); }
.form-status { margin: 0; font-weight: 600; font-size: .92rem; }
.form-status:empty { display: none; }

/* Footer: the back cover */
.site-footer { background: var(--cover); border-top: 2px solid var(--ink); }
.footer-grid { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, 2.85fr); gap: 48px; padding-block: 48px 32px; }
.footer-card { display: grid; justify-items: start; align-content: start; gap: 16px; }
.footer-card p { margin: 0; }
.footer-brand { font-weight: 800; font-stretch: 112%; font-size: 1.3rem; line-height: 1.1; }
.footer-facts { margin: 0; display: grid; gap: 8px; font-size: .93rem; }
.footer-facts dt { font-size: .72rem; color: var(--cover-ink-2); }
.footer-facts dd { margin: 0; }
.site-footer a { text-decoration-color: currentColor; }
.footer-index { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 32px; }
.site-footer h2 { font-size: .72rem; margin: 0 0 8px; padding-bottom: 6px; border-bottom: 1.5px solid var(--ink); }
.site-footer ul { list-style: none; margin: 0; padding: 0; }
.site-footer .toc { padding: 4px 0; font-size: .92rem; }
.site-footer .toc-l::after { border-bottom-color: var(--cover-ink-2); }
.footer-base { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px 24px; padding-block: 14px 24px; font-size: .85rem;
  background: linear-gradient(var(--ink), var(--ink)) center top / calc(100% - 2 * var(--gutter)) 1.5px no-repeat; }
.footer-base p { margin: 0; }
.footer-base nav { display: flex; flex-wrap: wrap; gap: 6px 18px; }

/* Index-style lists: site map, 404, thank-you page */
.page-utility .content ul { list-style: none; padding-left: 0; border-top: 2px solid var(--ink); }
.page-utility .content li { padding: 10px 0; border-bottom: 1px solid var(--rule); margin: 0; color: var(--ink-2); font-size: .97rem; }
.page-utility .content li a { display: block; font-weight: 700; font-size: 1.05rem; margin-bottom: 2px; }

.callbar { display: none; }

@media (max-width: 1040px) {
  .site-nav > ul > li > a { padding-inline: 7px; font-size: .9rem; }
  .header-row { gap: 14px; }
}

@media (max-width: 960px) {
  .menu-btn { display: inline-flex; align-items: center; font: 700 .95rem var(--font); background: transparent; color: var(--ink); border: 2px solid var(--ink); padding: 8px 14px; cursor: pointer; }
  .menu-btn[aria-expanded="true"] { background: var(--ink); color: var(--cover); }
  .header-row > .call-label { display: none; }
  .js .site-nav { display: none; position: absolute; top: 100%; left: 0; right: 0; max-height: calc(100vh - 72px); overflow-y: auto; background: var(--page); border-top: 2px solid var(--ink); border-bottom: 2px solid var(--ink); padding: 8px max(var(--gutter), env(safe-area-inset-right, 0px)) 20px max(var(--gutter), env(safe-area-inset-left, 0px)); box-shadow: 0 24px 32px -20px rgba(21, 21, 20, .45); }
  .js .site-nav.open { display: block; }
  .site-nav > ul { flex-direction: column; align-items: stretch; }
  .site-nav > ul > li > a { padding: 12px 0 6px; font-size: 1.05rem; font-weight: 800; border-bottom: 1.5px solid var(--ink); }
  .site-nav .sub { display: block; position: static; min-width: 0; padding: 4px 0 8px; border: 0; box-shadow: none; background: none; }

  .spread::before { display: none; }
  .spread-row { grid-template-columns: 1fr; }
  .cover { background: var(--cover); margin-inline: calc(-1 * var(--gutter)); padding: 40px var(--gutter) 44px; }
  .page-one { padding: 8px 0 32px; }
  .page-one::before { display: none; }
  .page-head.has-photo .wrap { grid-template-columns: 1fr; row-gap: 28px; }
  .head-photo { max-width: 560px; }
  .footer-grid { grid-template-columns: 1fr; }
}

@media (max-width: 760px) {
  :root { --gutter: 16px; }
  .sheet, .spread { background-position: 16px 0; }
  .callbar {
    display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: center; gap: 12px; position: fixed; left: 0; right: 0; bottom: 0; z-index: 30;
    background: var(--cover); border-top: 2px solid var(--ink);
    padding: 8px max(12px, env(safe-area-inset-right, 0px)) calc(8px + env(safe-area-inset-bottom, 0px)) max(12px, env(safe-area-inset-left, 0px));
  }
  .callbar-call { display: block; background: #fff; border: 2px solid var(--ink); color: var(--ink); text-decoration: none; text-align: center; padding: 11px 12px; font-weight: 800; font-stretch: 108%; font-size: 1.08rem; white-space: nowrap; }
  .callbar-call:active { background: var(--ink); color: #fff; }
  .callbar-quote { font-weight: 700; text-decoration-color: currentColor; padding: 8px 4px; }
  body { padding-bottom: 76px; }
  .field-row { grid-template-columns: 1fr; }
  .entries { grid-template-columns: 1fr; }
  .cta { grid-template-columns: 1fr; padding: 44px 0 52px; margin-top: 72px; }
  .footer-index { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 600px) {
  .fig1-art { max-width: none; width: calc(100% + var(--gutter)); margin-inline: calc(-.5 * var(--gutter)); }
  .fig1-labels text { font-size: 17px; }
  .fig1-labels .fig1-title { font-size: 16.5px; }
  .fig1-labels .fig1-a { font-size: 17px; }
}

@media (max-width: 520px) {
  body { font-size: 1rem; }
  .cover h1 { font-size: clamp(2.1rem, 10.4vw, 2.6rem); }
  .cover .lede { font-size: 1.05rem; }
  .entry.has-art { grid-template-columns: 88px minmax(0, 1fr); column-gap: 16px; }
  .entry-fig { width: 88px; height: 62px; }
  .answer { font-size: 1.08rem; }
  .quote-form { padding: 18px 14px; }
  .steps ol::before { left: 40px; }
  .steps li { padding-left: 56px; }
  .steps li::before { width: 30px; font-size: 1.4rem; }
  .footer-index { grid-template-columns: 1fr; }
  .brand-name { font-size: .94rem; }
  .gauge-zones { font-size: .74rem; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition-duration: 0s !important; transition-delay: 0s !important; }
}