:root {
  --ink: #172019;
  --muted: #5f6a61;
  --paper: #f2efe5;
  --panel: #fffdf5;
  --line: #c7c5bb;
  --acid: #dfff00;
  --orange: #ff5a24;
  --dark: #16231a;
  --display: "Haettenschweiler", "Franklin Gothic Condensed", "Aptos Narrow", sans-serif;
  --body: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
  --radius: 16px;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background:
    linear-gradient(rgba(23, 32, 25, .045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(23, 32, 25, .045) 1px, transparent 1px),
    var(--paper);
  background-size: 32px 32px;
  font: 18px/1.62 var(--body);
}
a { color: inherit; text-decoration-thickness: 2px; text-underline-offset: 4px; }
a:hover { color: #4c5e00; }
button, input { font: inherit; }
:focus-visible { outline: 3px solid var(--orange); outline-offset: 3px; }
.wrap { width: min(1180px, calc(100% - 36px)); margin-inline: auto; }
.narrow { max-width: 820px; }
.skip-link {
  position: absolute; left: -999px; top: 12px; z-index: 100;
  padding: 10px 14px; background: var(--acid); color: var(--ink);
}
.skip-link:focus { left: 12px; }
.site-header {
  position: sticky; top: 0; z-index: 50;
  border-bottom: 1px solid rgba(23, 32, 25, .26);
  background: rgba(242, 239, 229, .94);
  backdrop-filter: blur(12px);
}
.header-inner {
  min-height: 76px; display: flex; align-items: center;
  justify-content: space-between; gap: 24px;
}
.brand {
  display: inline-flex; align-items: center; gap: 12px;
  font: 900 27px/1 var(--display); letter-spacing: -.02em; text-decoration: none;
}
.brand-logo { display: block; width: 44px; height: 44px; flex: 0 0 44px; }
.site-nav { display: flex; gap: 26px; font: 800 14px/1 var(--display); letter-spacing: .07em; text-transform: uppercase; }
.site-nav a { text-decoration: none; }
.menu-button { display: none; border: 2px solid var(--ink); background: transparent; padding: 9px 12px; font-weight: 800; }
.hero { padding: 86px 0 74px; overflow: hidden; }
.hero-grid { display: grid; grid-template-columns: 1.3fr .7fr; gap: 68px; align-items: center; }
.kicker {
  display: inline-flex; align-items: center; gap: 10px; margin: 0 0 18px;
  font: 900 13px/1 var(--display); letter-spacing: .12em; text-transform: uppercase;
}
.kicker::before { content: ""; width: 40px; height: 7px; background: var(--orange); }
h1, h2, h3 {
  font-family: var(--display); letter-spacing: -.025em;
  overflow-wrap: anywhere;
}
h1 { max-width: 900px; margin: 0; font-size: clamp(56px, 8.2vw, 112px); line-height: 1.02; }
h2 { margin: 0; font-size: clamp(34px, 4.2vw, 56px); line-height: 1.08; }
h3 { font-size: 26px; line-height: 1.15; }
.hero-lead, .page-lead { max-width: 760px; color: #3f4a42; font-size: clamp(20px, 2vw, 26px); }
.hero-lead { margin: 28px 0 36px; }
.hero-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 24px; }
.text-link { font-weight: 800; }
.button {
  display: inline-flex; min-height: 52px; align-items: center; justify-content: center; gap: 10px;
  padding: 0 22px; border: 2px solid var(--ink); border-radius: 8px;
  background: var(--acid); color: var(--ink); box-shadow: 5px 5px 0 var(--ink);
  font: 900 14px/1 var(--display); letter-spacing: .07em; text-decoration: none; text-transform: uppercase;
  cursor: pointer; transition: transform .16s ease, box-shadow .16s ease;
}
.button:hover { color: var(--ink); transform: translate(2px, 2px); box-shadow: 3px 3px 0 var(--ink); }
.button-ghost { background: transparent; box-shadow: none; }
.hero-plate {
  position: relative; padding: 32px; border: 2px solid var(--ink); border-radius: 24px;
  background: var(--dark); color: #fff; box-shadow: 14px 14px 0 var(--acid); transform: rotate(2deg);
}
.hero-plate::after { content: ""; position: absolute; inset: 12px; border: 1px dashed rgba(255,255,255,.35); border-radius: 15px; pointer-events: none; }
.hero-plate strong { position: relative; z-index: 1; display: block; margin-top: 13px; color: #e8ede9; font: 900 25px/1.05 var(--display); text-transform: uppercase; }
.plate-number { position: relative; z-index: 1; display: block; color: var(--acid); font: 900 70px/1 var(--display); }

.home-hero {
  position: relative; overflow: hidden; padding: 90px 0 0;
  border-bottom: 1px solid var(--line);
}
.home-hero::before {
  content: "QTY"; position: absolute; right: -32px; top: 20px;
  color: rgba(23,32,25,.035); font: 900 clamp(220px, 34vw, 520px)/.75 var(--display);
  letter-spacing: -.08em; pointer-events: none;
}
.home-hero-grid {
  position: relative; display: grid; grid-template-columns: minmax(0, 1.18fr) minmax(340px, .72fr);
  gap: clamp(48px, 7vw, 96px); align-items: center;
}
.home-hero-copy { min-width: 0; }
.home-hero h1 {
  max-width: 820px;
  overflow-wrap: normal;
  font-size: clamp(52px, 5.5vw, 80px);
}
.field-board {
  position: relative; margin-bottom: 72px; padding: 26px;
  border: 2px solid var(--ink); border-radius: 20px;
  background: var(--dark); color: #fff; box-shadow: 14px 14px 0 var(--acid);
  transform: rotate(1.25deg);
}
.field-board::after {
  content: ""; position: absolute; inset: 12px; border: 1px dashed rgba(255,255,255,.28);
  border-radius: 12px; pointer-events: none;
}
.field-board-head {
  position: relative; z-index: 1; display: flex; justify-content: space-between; gap: 18px;
  padding-bottom: 18px; border-bottom: 1px solid rgba(255,255,255,.22);
  font: 900 12px/1 var(--display); letter-spacing: .09em; text-transform: uppercase;
}
.field-board-status { color: var(--acid); }
.field-steps { position: relative; z-index: 1; margin: 0; padding: 0; list-style: none; }
.field-steps li {
  display: grid; grid-template-columns: 54px 1fr; gap: 18px; align-items: center;
  padding: 24px 0; border-bottom: 1px solid rgba(255,255,255,.18);
}
.field-steps > li > span { color: var(--acid); font: 900 34px/1 var(--display); }
.field-steps strong { display: block; font: 900 28px/1 var(--display); text-transform: uppercase; }
.field-steps small { display: block; margin-top: 7px; color: #cad2cc; font: 15px/1.35 var(--body); }
.field-board-note {
  position: relative; z-index: 1; display: grid; grid-template-columns: auto 1fr;
  gap: 14px; align-items: start; padding-top: 22px;
}
.field-board-note > span { color: var(--orange); font: 900 28px/1 var(--display); }
.field-board-note p { margin: 0; color: #cad2cc; font-size: 15px; }
.field-board-note strong { color: #fff; }
.home-jumpbar { position: sticky; top: 76px; z-index: 40; border-bottom: 1px solid var(--line); background: var(--acid); }
.home-jumpbar .wrap { display: flex; gap: 24px; align-items: center; min-height: 52px; overflow-x: auto; }
.home-jumpbar span, .home-jumpbar a {
  flex: 0 0 auto; font: 900 12px/1 var(--display); letter-spacing: .08em; text-transform: uppercase;
}
.home-jumpbar span { color: #526500; }
.home-jumpbar a { text-decoration: none; }

.task-finder { border-bottom: 1px solid var(--line); background: rgba(255,253,245,.56); }
.task-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.task-card {
  display: grid; grid-template-columns: auto 1fr; min-height: 292px; padding: 24px;
  border: 1px solid var(--line); border-radius: var(--radius); background: var(--panel);
  color: var(--ink); text-decoration: none; transition: transform .16s ease, box-shadow .16s ease;
}
.task-card:hover {
  color: var(--ink); transform: translateY(-3px); box-shadow: 7px 7px 0 var(--ink);
}
.task-card-primary {
  grid-column: span 2; border: 2px solid var(--ink); background: var(--acid);
  box-shadow: 8px 8px 0 var(--ink);
}
.task-card-index { color: var(--muted); font: 900 36px/.9 var(--display); }
.task-card-primary .task-card-index { color: #526500; }
.task-card-kind {
  justify-self: end; color: #526500; font: 900 12px/1 var(--display);
  letter-spacing: .1em; text-transform: uppercase;
}
.task-card h3 {
  grid-column: 1 / -1; align-self: end; max-width: 620px; margin: 50px 0 12px;
  font-size: clamp(30px, 3.1vw, 46px);
}
.task-card p { grid-column: 1 / -1; margin: 0; color: #4f5b52; font-size: 15px; }
.task-card-action {
  grid-column: 1 / -1; align-self: end; margin-top: 28px;
  font: 900 13px/1 var(--display); letter-spacing: .06em; text-decoration: underline; text-transform: uppercase;
}
.homepage-proof {
  display: grid; grid-template-columns: repeat(4, minmax(0, 1fr));
  margin: 46px 0 0; padding: 0; border: 1px solid var(--line); border-radius: var(--radius);
  background: var(--paper); list-style: none;
}
.homepage-proof li { padding: 20px; border-right: 1px solid var(--line); }
.homepage-proof li:last-child { border-right: 0; }
.homepage-proof strong {
  display: block; font: 900 16px/1 var(--display); text-transform: uppercase;
}
.homepage-proof span { display: block; margin-top: 8px; color: var(--muted); font-size: 14px; }

.section { padding: 80px 0; }
.section-head { display: flex; justify-content: space-between; align-items: end; gap: 34px; margin-bottom: 36px; }
.section-head > p { max-width: 430px; margin: 0; color: var(--muted); }
.calculator-spotlight { background: rgba(255,253,245,.52); }
.calculator-followup {
  display: flex; justify-content: space-between; gap: 32px; align-items: center;
  margin-top: 34px; padding-top: 26px; border-top: 1px solid var(--line);
}
.calculator-followup p { max-width: 670px; margin: 0; }
.categories-section { border-top: 1px solid var(--line); }
.card-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px; }
.directory-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.category-card {
  position: relative; min-height: 270px; padding: 28px; overflow: hidden;
  border: 1px solid var(--line); border-radius: var(--radius); background: var(--panel);
}
.category-card:has(.article-card-media) { padding-top: 0; }
.category-card .article-card-media {
  position: relative; z-index: 1; margin: 0 -28px 24px;
  border-bottom: 1px solid var(--line);
}
.article-card-media {
  overflow: hidden; background: #d8d4c7;
}
.article-card-media img {
  display: block; width: 100%; height: auto; aspect-ratio: 16 / 9; object-fit: cover;
  transition: transform .35s ease;
}
.category-card:hover .article-card-media img,
.article-card:hover .article-card-media img { transform: scale(1.025); }
.category-card::after {
  content: attr(data-index); position: absolute; right: -4px; bottom: -34px;
  color: rgba(23, 32, 25, .07); font: 900 126px/1 var(--display);
}
.category-card h2, .category-card h3 { position: relative; z-index: 1; margin: 24px 0 14px; text-transform: uppercase; }
.category-card h2 { font-size: 38px; }
.category-card p, .category-card a, .category-card .not-linked, .category-card .status { position: relative; z-index: 1; }
.category-card a { display: inline-block; margin-top: 12px; font-weight: 800; }
.category-card.planned { background: #e8e4d8; }
.category-tools { border-bottom: 1px solid var(--line); }
.tool-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.tool-list-card {
  padding: 28px; border: 2px solid var(--ink); border-radius: var(--radius);
  background: var(--acid); box-shadow: 8px 8px 0 var(--ink);
}
.tool-list-card h3 { margin: 22px 0 14px; font-size: 38px; text-transform: uppercase; }
.tool-list-card p { max-width: 650px; }
.tool-list-card a { font-weight: 900; }
.category-context { padding-top: 76px; }
.cluster-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
.cluster-card {
  display: flex; min-height: 370px; padding: 30px; flex-direction: column; justify-content: space-between;
  border: 2px solid var(--ink); border-radius: var(--radius); background: var(--panel);
}
.cluster-card-primary { background: var(--acid); box-shadow: 9px 9px 0 var(--ink); }
.cluster-card-top { display: flex; justify-content: space-between; align-items: start; gap: 20px; }
.cluster-number { color: var(--muted); font: 900 60px/.8 var(--display); }
.cluster-card-primary .cluster-number { color: #526500; }
.cluster-card h3 { max-width: 640px; margin: 54px 0 18px; font-size: clamp(42px, 5vw, 68px); }
.cluster-card p { max-width: 650px; margin: 0; color: #465149; }
.cluster-card a { margin-top: 34px; font-weight: 900; }
.coverage-rail {
  display: grid; grid-template-columns: 160px 1fr; gap: 20px 28px; align-items: start;
  margin-top: 54px; padding: 28px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
}
.coverage-rail > strong { font: 900 18px/1 var(--display); text-transform: uppercase; }
.coverage-rail > div { display: flex; flex-wrap: wrap; gap: 8px; }
.coverage-rail > div span {
  padding: 7px 10px; border: 1px solid var(--line); border-radius: 999px;
  background: rgba(255,253,245,.66); color: var(--muted); font-size: 13px;
}
.coverage-rail p { grid-column: 2; margin: 0; color: var(--muted); font-size: 14px; }
.status { color: #526500; font: 900 12px/1 var(--display); letter-spacing: .1em; text-transform: uppercase; }
.not-linked { display: inline-block; margin-top: 12px; color: var(--muted); font-size: 14px; font-weight: 700; }
.section-action { margin: 32px 0 0; }
.resource-section { border-top: 1px solid var(--line); }
.resource-grid { display: grid; grid-template-columns: 1.15fr .85fr 1fr; gap: 18px; }
.resource-card {
  position: relative; display: flex; min-height: 290px; padding: 28px;
  flex-direction: column; justify-content: flex-end; overflow: hidden;
  border: 2px solid var(--ink); border-radius: var(--radius);
  background: var(--panel); color: var(--ink); text-decoration: none;
  transition: transform .18s ease, box-shadow .18s ease;
}
.resource-card:hover { color: var(--ink); transform: translateY(-4px); box-shadow: 8px 8px 0 var(--ink); }
.resource-card-acid { background: var(--acid); }
.resource-card-dark { background: var(--dark); color: #fff; }
.resource-card-dark:hover { color: #fff; box-shadow: 8px 8px 0 var(--acid); }
.resource-card-dark .status { color: var(--acid); }
.resource-card strong { position: relative; z-index: 1; margin: 18px 0 12px; font: 900 34px/.95 var(--display); text-transform: uppercase; }
.resource-card > span:last-child { position: relative; z-index: 1; color: var(--muted); }
.resource-card-dark > span:last-child { color: #cad2cc; }
.resource-number {
  position: absolute; right: 18px; top: 12px; color: #5f6a61;
  font: 900 118px/1 var(--display);
}
.resource-card-acid .resource-number { color: #526500; }
.resource-card-dark .resource-number { color: rgba(255,255,255,.38); }
.trust-links {
  display: flex; flex-wrap: wrap; gap: 14px 24px; align-items: center;
  margin-top: 28px; padding: 20px 0; border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line); font-weight: 800;
}
.trust-links span { color: var(--muted); font-weight: 400; }
.resource-library { border-top: 1px solid var(--line); background: #e8e4d8; }
.resource-library .section-head > p { color: #4f5b52; }
.article-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.article-card {
  display: flex; min-height: 330px; padding: 26px; flex-direction: column;
  overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius); background: var(--panel);
}
.article-card:has(.article-card-media) { padding-top: 0; }
.article-card .article-card-media {
  margin: 0 -26px 24px; border-bottom: 1px solid var(--line);
}
.article-card-featured .article-card-media { border-color: rgba(255,255,255,.22); }
.article-card-featured {
  grid-column: span 2; background: var(--dark); color: #fff;
  box-shadow: 8px 8px 0 var(--orange);
}
.article-card-meta {
  display: flex; justify-content: space-between; gap: 18px; color: #526500;
  font: 900 12px/1 var(--display); letter-spacing: .1em; text-transform: uppercase;
}
.article-card-featured .article-card-meta { color: var(--acid); }
.article-card h3 { max-width: 720px; margin: 50px 0 18px; font-size: clamp(30px, 3.4vw, 48px); }
.article-card p { margin: 0; color: var(--muted); }
.article-card-featured p { max-width: 720px; color: #cad2cc; }
.article-card a { margin-top: auto; padding-top: 28px; font-weight: 900; }
.library-actions { display: flex; flex-wrap: wrap; gap: 18px; margin-top: 34px; }
.dark-section { background: var(--dark); color: #f8f4e9; }
.dark-section .section-head > p, .dark-section .narrow > p { color: #cad2cc; }
.trust-grid { display: grid; grid-template-columns: repeat(4, 1fr); border: 1px solid rgba(255,255,255,.2); border-radius: var(--radius); }
.trust-grid div { padding: 24px; border-right: 1px solid rgba(255,255,255,.2); }
.trust-grid div:last-child { border: 0; }
.trust-grid strong { display: block; color: var(--acid); font: 900 18px/1.1 var(--display); text-transform: uppercase; }
.trust-grid span { display: block; margin-top: 9px; color: #cad2cc; font-size: 15px; }
.method-section { position: relative; overflow: hidden; }
.method-section::after {
  content: "03"; position: absolute; right: -24px; bottom: -92px;
  color: rgba(255,255,255,.035); font: 900 360px/.8 var(--display); pointer-events: none;
}
.method-grid {
  position: relative; z-index: 1; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr));
  margin: 0; padding: 0; border: 1px solid rgba(255,255,255,.22);
  border-radius: var(--radius); list-style: none;
}
.method-grid li { min-height: 310px; padding: 28px; border-right: 1px solid rgba(255,255,255,.22); }
.method-grid li:last-child { border-right: 0; }
.method-grid span { display: block; color: var(--orange); font: 900 50px/.9 var(--display); }
.method-grid strong { display: block; margin-top: 60px; color: var(--acid); font: 900 25px/1 var(--display); text-transform: uppercase; }
.method-grid p { margin: 14px 0 0; color: #cad2cc; font-size: 16px; }
.method-links {
  position: relative; z-index: 1; display: flex; flex-wrap: wrap; gap: 12px 28px;
  margin-top: 30px; padding-top: 24px; border-top: 1px solid rgba(255,255,255,.2);
}
.method-links a { color: #fff; font-weight: 800; }
.home-final { background: var(--acid); }
.home-final-grid { display: grid; grid-template-columns: 1.25fr .75fr; gap: 70px; align-items: end; }
.home-final-grid h2 { max-width: 760px; }
.home-final-grid > div:last-child { padding-bottom: 7px; }
.home-final-grid > div:last-child p { margin: 0 0 28px; color: #344037; }
.home-final .button { background: var(--paper); }
.page-hero { padding: 62px 0 38px; border-bottom: 1px solid var(--line); }
.page-hero h1 { font-size: clamp(44px, 5.5vw, 68px); }
.page-hero-sand-coverage-guide h1 {
  max-width: none;
  font-size: clamp(48px, 4.8vw, 58px);
  text-wrap: balance;
}
.page-lead { margin: 24px 0 0; }
.breadcrumbs { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 24px; color: var(--muted); font: 800 13px/1 var(--display); letter-spacing: .06em; text-transform: uppercase; }
.review-strip { display: flex; flex-wrap: wrap; gap: 16px 30px; margin-top: 28px; padding-top: 20px; border-top: 1px solid var(--line); color: var(--muted); font-size: 14px; }
.post-meta {
  display: grid; grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 26px 0; margin: 28px 0 0; padding: 20px 0 0;
  border-top: 1px solid var(--line);
}
.post-meta div { min-width: 0; padding: 0 18px; border-left: 1px solid var(--line); }
.post-meta div:nth-child(4n + 1) { padding-left: 0; border-left: 0; }
.post-meta dt {
  margin: 0 0 7px; color: #526500;
  font: 900 11px/1 var(--display); letter-spacing: .09em; text-transform: uppercase;
}
.post-meta dd {
  margin: 0; overflow-wrap: anywhere;
  color: var(--muted); font-size: 14px; line-height: 1.35;
}
.post-meta a { font-weight: 800; text-underline-offset: 3px; }
.author-hero { padding: 62px 0 48px; border-bottom: 1px solid var(--line); }
.author-identity {
  display: grid; grid-template-columns: 150px minmax(0, 1fr);
  gap: 38px; align-items: center; margin-top: 28px;
}
.author-monogram {
  display: grid; width: 150px; height: 150px; place-items: center;
  border: 1px solid var(--ink); border-radius: 18px;
  background: var(--acid); color: var(--ink);
  font: 900 58px/1 var(--display); letter-spacing: -.04em;
  box-shadow: 10px 10px 0 var(--ink);
}
.author-identity h1 { margin: 8px 0 0; font-size: clamp(48px, 6vw, 74px); }
.author-role {
  margin: 12px 0 0; color: #526500;
  font: 900 15px/1.2 var(--display); letter-spacing: .06em;
  text-transform: uppercase;
}
.author-identity .page-lead { max-width: 780px; }
.author-facts dl { margin: 24px 0 0; }
.author-facts dl div { padding: 16px 0; border-top: 1px solid var(--line); }
.author-facts dt {
  margin-bottom: 6px; color: #526500;
  font: 900 11px/1 var(--display); letter-spacing: .09em;
  text-transform: uppercase;
}
.author-facts dd { margin: 0; color: var(--muted); line-height: 1.45; }
.author-policy-links { margin-top: 24px; padding-top: 18px; border-top: 1px solid var(--line); }
.author-work { border-top: 1px solid var(--line); }
.content-section { padding: 66px 0 92px; }
.content-grid { display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: 66px; align-items: start; }
.prose { min-width: 0; max-width: 790px; }
.article-visual { margin: 0 0 38px; }
.article-visual img {
  display: block; width: 100%; height: auto; border: 1px solid var(--line);
  border-radius: 14px; background: var(--panel);
}
.article-visual figcaption {
  display: grid; gap: 5px; padding: 12px 2px 0; color: var(--muted);
  font-size: 14px; line-height: 1.45;
}
.article-visual figcaption small { font-size: 12px; }
.prose h2 { margin: 54px 0 16px; font-size: clamp(30px, 3.2vw, 42px); }
.prose h3 { margin: 34px 0 12px; }
.prose li + li { margin-top: 8px; }
.prose table { display: block; width: 100%; margin: 28px 0; overflow-x: auto; border-collapse: collapse; background: var(--panel); font-size: 16px; }
.prose th, .prose td { min-width: 160px; padding: 14px 16px; border: 1px solid var(--line); text-align: left; vertical-align: top; }
.prose th { background: var(--dark); color: #fff; font-family: var(--display); letter-spacing: .03em; }
.prose tbody tr:nth-child(even) { background: #ece8dc; }
.qk-callout { margin: 28px 0; padding: 22px 24px; border-left: 7px solid var(--orange); background: #fff8e7; }
.qk-equation { padding: 24px; border: 2px solid var(--ink); border-radius: 12px; background: var(--acid); font: 900 clamp(24px, 4vw, 40px)/1.1 var(--display); }
.side-card { position: sticky; top: 104px; padding: 22px; border: 1px solid var(--line); border-radius: 12px; background: var(--panel); }
.side-card h2 { margin: 0 0 14px; font-size: 26px; }
.side-label { margin: 0 0 10px; color: #526500; font: 900 12px/1 var(--display); letter-spacing: .1em; text-transform: uppercase; }
.side-card ul { margin: 0; padding-left: 20px; }
.side-card li + li { margin-top: 10px; }
.calculator { display: grid; grid-template-columns: 1.15fr .85fr; border: 2px solid var(--ink); border-radius: 20px; overflow: hidden; background: var(--panel); box-shadow: 12px 12px 0 rgba(23, 32, 25, .12); }
.calculator-form, .calculator-result { padding: 30px; }
.calculator-bar { display: flex; justify-content: space-between; align-items: center; gap: 18px; margin-bottom: 24px; }
.calculator-bar p { margin: 0; font: 900 14px/1 var(--display); letter-spacing: .09em; text-transform: uppercase; }
.unit-switch { display: inline-flex; border: 1px solid var(--ink); border-radius: 8px; overflow: hidden; }
.unit-switch button { min-height: 40px; padding: 0 14px; border: 0; background: transparent; cursor: pointer; }
.unit-switch button.active { background: var(--dark); color: #fff; }
.field-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.field-grid label { font: 800 15px/1.35 var(--display); }
.field-grid input, .field-grid select { width: 100%; min-height: 48px; margin-top: 7px; padding: 10px 12px; border: 1px solid #7d847e; border-radius: 7px; background: #fff; }
.field-grid small { display: block; margin-top: 6px; color: var(--muted); font: 14px/1.35 var(--body); }
.field-span { grid-column: 1 / -1; }
.shape-field-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.gravel-result-grid { display: grid; grid-template-columns: 1fr 1fr; border-top: 1px solid rgba(255,255,255,.2); }
.gravel-result-grid div { padding: 16px 12px 16px 0; border-bottom: 1px solid rgba(255,255,255,.2); }
.gravel-result-grid div:nth-child(even) { padding-left: 12px; border-left: 1px solid rgba(255,255,255,.2); }
.gravel-result-grid span { display: block; color: #cad2cc; font-size: 13px; }
.gravel-result-grid strong { display: block; margin-top: 7px; color: #fff; font-size: 18px; }
.gravel-result-grid strong span { display: inline; color: inherit; font-size: inherit; }
.gravel-result-grid .result-span { grid-column: 1 / -1; padding-left: 0; border-left: 0; }
.calculator-actions { display: flex; align-items: center; gap: 20px; margin-top: 24px; }
.text-button { border: 0; background: transparent; font-weight: 800; text-decoration: underline; cursor: pointer; }
.form-error { padding: 12px 14px; background: #ffe1d7; border-left: 5px solid var(--orange); }
.calculator-result { display: flex; flex-direction: column; justify-content: center; background: var(--dark); color: #fff; }
.result-label { margin: 0; color: #cad2cc; font: 800 13px/1 var(--display); letter-spacing: .1em; text-transform: uppercase; }
.primary-result { margin: 12px 0 26px; color: var(--acid); font: 900 clamp(52px, 7vw, 88px)/.9 var(--display); }
.result-grid { display: grid; grid-template-columns: 1fr 1fr; border-top: 1px solid rgba(255,255,255,.2); border-bottom: 1px solid rgba(255,255,255,.2); }
.result-grid div { padding: 18px 12px 18px 0; }
.result-grid div + div { padding-left: 18px; border-left: 1px solid rgba(255,255,255,.2); }
.result-grid span { display: block; color: #cad2cc; font-size: 14px; }
.result-grid strong { display: block; margin-top: 6px; font: 900 24px/1 var(--display); }
.result-formula { font-weight: 800; }
.result-note { color: #cad2cc; font-size: 14px; }
.site-footer { padding: 42px 0; border-top: 1px solid var(--line); }
.footer-grid { display: flex; justify-content: space-between; gap: 30px; }
.footer-brand {
  display: inline-flex; align-items: center; gap: 12px;
  color: inherit; font: 900 24px/1 var(--display); text-decoration: none;
}
.footer-brand img { display: block; border-radius: 9px; }
.footer-grid p { margin: 8px 0 0; color: var(--muted); }
.footer-grid nav { display: flex; flex-wrap: wrap; gap: 18px; align-items: center; font-size: 15px; }
.error-page { padding: 110px 0; }

@media (max-width: 900px) {
  .hero-grid, .home-hero-grid, .calculator, .content-grid, .home-final-grid { grid-template-columns: minmax(0, 1fr); }
  .card-grid, .directory-grid { grid-template-columns: 1fr 1fr; }
  .task-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .task-card-primary { grid-column: 1 / -1; }
  .homepage-proof { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .homepage-proof li:nth-child(2) { border-right: 0; }
  .homepage-proof li:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .resource-grid { grid-template-columns: 1fr 1fr; }
  .resource-card-dark { grid-column: 1 / -1; }
  .side-card { position: static; }
  .hero-plate { max-width: 430px; transform: none; }
  .field-board { max-width: 620px; margin: 0 0 78px; transform: none; }
  .article-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .article-card-featured { grid-column: 1 / -1; }
}
@media (max-width: 700px) {
  .header-inner { flex-wrap: wrap; }
  .brand { font-size: 23px; }
  .menu-button { display: block; }
  .site-nav {
    display: none; position: static; flex: 0 0 100%;
    padding: 18px 0 22px; border-top: 1px solid var(--line);
    background: transparent; flex-direction: column;
  }
  .site-nav.open { display: flex; }
  .section-head { display: block; }
  .section-head > p { margin-top: 18px; }
  .card-grid, .directory-grid, .field-grid, .trust-grid, .resource-grid, .tool-list,
  .cluster-grid, .article-grid, .method-grid, .task-grid { grid-template-columns: minmax(0, 1fr); }
  .task-card-primary { grid-column: auto; }
  .resource-card-dark { grid-column: auto; }
  .trust-grid div { border-right: 0; border-bottom: 1px solid rgba(255,255,255,.2); }
  .trust-grid div:last-child { border-bottom: 0; }
  .article-card-featured { grid-column: auto; }
  .method-grid li { min-height: 0; border-right: 0; border-bottom: 1px solid rgba(255,255,255,.22); }
  .method-grid li:last-child { border-bottom: 0; }
  .method-grid strong { margin-top: 34px; }
  .calculator-followup { display: block; }
  .calculator-followup .button { margin-top: 22px; }
  .coverage-rail { grid-template-columns: 1fr; }
  .coverage-rail p { grid-column: auto; }
  .footer-grid { display: block; }
  .footer-grid nav { margin-top: 24px; flex-direction: column; align-items: flex-start; }
  .author-identity { grid-template-columns: 120px minmax(0, 1fr); gap: 28px; }
  .author-monogram { width: 120px; height: 120px; font-size: 48px; }
  .post-meta { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px 0; }
  .post-meta div { padding: 0 16px; }
  .post-meta div:nth-child(odd) { padding-left: 0; border-left: 0; }
}
@media (max-width: 480px) {
  body { font-size: 17px; }
  .wrap { width: min(100% - 24px, 1180px); }
  h1 { font-size: 50px; }
  .page-hero h1 { overflow-wrap: normal; font-size: 38px; }
  .home-hero { padding-top: 58px; }
  .home-hero h1 { font-size: 44px; }
  .field-board { padding: 20px; box-shadow: 8px 8px 0 var(--acid); }
  .field-board-head { display: block; }
  .author-hero { padding: 44px 0 36px; }
  .author-identity { display: block; margin-top: 22px; }
  .author-monogram { width: 94px; height: 94px; margin-bottom: 30px; font-size: 38px; box-shadow: 7px 7px 0 var(--ink); }
  .author-identity h1 { font-size: 46px; }
  .post-meta { grid-template-columns: 1fr; }
  .post-meta div { padding: 0; border-left: 0; }
  .field-board-status { display: block; margin-top: 9px; }
  .home-jumpbar { top: 76px; }
  .home-jumpbar .wrap { gap: 18px; }
  .task-card { min-height: 270px; padding: 22px; }
  .homepage-proof { grid-template-columns: 1fr; }
  .homepage-proof li { border-right: 0; border-bottom: 1px solid var(--line); }
  .homepage-proof li:nth-child(2) { border-right: 0; }
  .homepage-proof li:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .homepage-proof li:last-child { border-bottom: 0; }
  .cluster-card { min-height: 340px; padding: 24px; }
  .cluster-card h3 { font-size: 42px; }
  .article-card { min-height: 310px; padding: 23px; }
  .article-card:has(.article-card-media) { padding-top: 0; }
  .article-card .article-card-media { margin-right: -23px; margin-left: -23px; }
  .category-card .article-card-media { margin-right: -24px; margin-left: -24px; }
  .home-final-grid { gap: 34px; }
  .calculator-form, .calculator-result { padding: 22px; }
  .calculator-bar { align-items: flex-start; flex-direction: column; }
  .shape-field-grid, .gravel-result-grid { grid-template-columns: 1fr; }
  .gravel-result-grid div:nth-child(even) { padding-left: 0; border-left: 0; }
  .gravel-result-grid .result-span { grid-column: auto; }
  .result-grid { grid-template-columns: 1fr; }
  .result-grid div + div { padding-left: 0; border-left: 0; border-top: 1px solid rgba(255,255,255,.2); }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; }
}