/* GRSJ Land Services: site styles. Copper on caliche sand (light) or crude charcoal (dark). */

@font-face { font-family: "Barlow Condensed"; font-weight: 600; font-style: normal; font-display: swap; src: url("/assets/fonts/barlow-condensed-latin-600-normal.woff2") format("woff2"); }
@font-face { font-family: "Barlow Condensed"; font-weight: 700; font-style: normal; font-display: swap; src: url("/assets/fonts/barlow-condensed-latin-700-normal.woff2") format("woff2"); }
@font-face { font-family: "IBM Plex Sans"; font-weight: 400; font-style: normal; font-display: swap; src: url("/assets/fonts/ibm-plex-sans-latin-400-normal.woff2") format("woff2"); }
@font-face { font-family: "IBM Plex Sans"; font-weight: 600; font-style: normal; font-display: swap; src: url("/assets/fonts/ibm-plex-sans-latin-600-normal.woff2") format("woff2"); }
@font-face { font-family: "IBM Plex Mono"; font-weight: 400; font-style: normal; font-display: swap; src: url("/assets/fonts/ibm-plex-mono-latin-400-normal.woff2") format("woff2"); }

:root {
  --bg: #efe6d6;          /* caliche sand */
  --bg-alt: #e6dac5;
  --surface: #f8f2e8;
  --ink: #24221f;
  --muted: #5a5349;
  --line: #cbbb9f;
  --grid: rgba(120, 92, 58, 0.13);
  --copper: #9a4a22;
  --copper-strong: #7f3b19;
  --copper-soft: rgba(154, 74, 34, 0.12);
  --on-copper: #fff8ee;
  --green: #56653f;       /* mesquite */
  --green-soft: rgba(86, 101, 63, 0.14);
  --focus: #1f5f8b;
  --shadow: 0 1px 0 rgba(36, 34, 31, 0.06);
  --font-head: "Barlow Condensed", "Arial Narrow", "Roboto Condensed", sans-serif-condensed, Impact, sans-serif;
  --font-body: "IBM Plex Sans", system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --wrap: 1160px;
  --gutter: 16px;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #1c1b19;        /* crude charcoal */
    --bg-alt: #23211e;
    --surface: #282622;
    --ink: #ede5d7;
    --muted: #b6ac98;
    --line: #3d3933;
    --grid: rgba(222, 196, 160, 0.07);
    --copper: #dc8e5a;
    --copper-strong: #eaa274;
    --copper-soft: rgba(220, 142, 90, 0.14);
    --on-copper: #1c1b19;
    --green: #9fb07f;
    --green-soft: rgba(159, 176, 127, 0.16);
    --focus: #8cc4ef;
    --shadow: none;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #1c1b19;
  --bg-alt: #23211e;
  --surface: #282622;
  --ink: #ede5d7;
  --muted: #b6ac98;
  --line: #3d3933;
  --grid: rgba(222, 196, 160, 0.07);
  --copper: #dc8e5a;
  --copper-strong: #eaa274;
  --copper-soft: rgba(220, 142, 90, 0.14);
  --on-copper: #1c1b19;
  --green: #9fb07f;
  --green-soft: rgba(159, 176, 127, 0.16);
  --focus: #8cc4ef;
  --shadow: none;
  color-scheme: dark;
}

@media (min-width: 720px) { :root { --gutter: 32px; } }

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.6;
  overflow-x: hidden;
}
img, svg { max-width: 100%; }
a { color: var(--copper); text-underline-offset: 0.18em; text-decoration-thickness: 1px; }
a:hover { color: var(--copper-strong); text-decoration-thickness: 2px; }
:focus-visible { outline: 3px solid var(--focus); outline-offset: 2px; border-radius: 2px; }

h1, h2, h3 { font-family: var(--font-head); font-weight: 700; line-height: 1.08; letter-spacing: 0.005em; margin: 0 0 0.5em; text-wrap: balance; }
h1 { font-size: clamp(2.3rem, 6vw, 3.7rem); text-transform: uppercase; letter-spacing: 0.01em; }
h2 { font-size: clamp(1.75rem, 3.6vw, 2.4rem); }
h3 { font-size: 1.45rem; font-weight: 600; }
p { margin: 0 0 1em; }
ul, ol { margin: 0 0 1em; padding-left: 1.25em; }
li { margin-bottom: 0.4em; }
strong { font-weight: 600; }

.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 var(--gutter); }
.skip { position: absolute; left: -9999px; top: 0; background: var(--copper); color: var(--on-copper); padding: 8px 14px; z-index: 100; }
.skip:focus { left: 8px; top: 8px; }
.mono { font-family: var(--font-mono); font-size: 0.85em; letter-spacing: 0.02em; }
.kicker { font-family: var(--font-mono); font-size: 0.78rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--copper); margin: 0 0 0.9em; display: flex; align-items: center; gap: 0.6em; }
.kicker::before { content: ""; width: 22px; height: 1px; background: currentColor; }
.lead { font-size: 1.2rem; color: var(--muted); max-width: 40em; }
.muted { color: var(--muted); }

/* Survey grid background used on hero bands and the footer */
.grid-bg {
  background-color: var(--bg);
  background-image:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 40px 40px;
  background-position: -1px -1px;
}

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.5em;
  min-height: 48px; padding: 0.7em 1.35em;
  font-family: var(--font-head); font-weight: 600; font-size: 1.15rem; letter-spacing: 0.04em; text-transform: uppercase;
  text-decoration: none; border: 2px solid var(--copper); border-radius: 2px;
  background: var(--copper); color: var(--on-copper); cursor: pointer;
  transition: background-color 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}
.btn:hover { background: var(--copper-strong); border-color: var(--copper-strong); color: var(--on-copper); text-decoration: none; }
.btn--ghost { background: transparent; color: var(--copper); }
.btn--ghost:hover { background: var(--copper-soft); color: var(--copper-strong); }
.btn[disabled], .btn[aria-disabled="true"] { opacity: 0.45; cursor: not-allowed; }
.btn-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 1.5em; }

/* Header */
.site-header { position: sticky; top: 0; z-index: 50; background: var(--bg); border-bottom: 1px solid var(--line); }
.site-header .wrap { display: flex; align-items: center; gap: 16px; min-height: 68px; }
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); flex: 0 0 auto; }
.brand:hover { color: var(--ink); text-decoration: none; }
.brand svg { width: 36px; height: 36px; color: var(--copper); flex: 0 0 auto; }
.brand-text { display: flex; flex-direction: column; line-height: 1; }
.brand-name { font-family: var(--font-head); font-weight: 700; font-size: 1.55rem; letter-spacing: 0.06em; }
.brand-sub { font-family: var(--font-mono); font-size: 0.66rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--muted); margin-top: 3px; }
.header-tools { margin-left: auto; display: flex; align-items: center; gap: 8px; }
.icon-btn { width: 44px; height: 44px; display: inline-grid; place-items: center; border: 1px solid var(--line); border-radius: 2px; background: transparent; color: var(--ink); cursor: pointer; padding: 0; }
.icon-btn:hover { border-color: var(--copper); color: var(--copper); }
.icon-btn svg { width: 20px; height: 20px; }
.theme-toggle .icon-sun { display: none; }
:root[data-theme="dark"] .theme-toggle .icon-sun { display: block; }
:root[data-theme="dark"] .theme-toggle .icon-moon { display: none; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .theme-toggle .icon-sun { display: block; }
  :root:not([data-theme="light"]) .theme-toggle .icon-moon { display: none; }
}

.site-nav ul { list-style: none; margin: 0; padding: 0; }
.site-nav a { text-decoration: none; color: var(--ink); font-weight: 600; font-size: 0.98rem; }
.site-nav a:hover { color: var(--copper); }
.site-nav a[aria-current="page"] { color: var(--copper); }
.nav-cta { display: none; }

/* Mobile nav */
.nav-toggle { display: inline-grid; }
.site-nav { display: none; position: absolute; left: 0; right: 0; top: 100%; background: var(--bg); border-bottom: 1px solid var(--line); padding: 8px var(--gutter) 20px; }
.no-js .site-nav, .site-nav.is-open { display: block; }
.no-js .site-nav { position: static; padding: 0 0 12px; border: 0; width: 100%; }
.no-js .site-header .wrap { flex-wrap: wrap; }
.no-js .nav-toggle { display: none; }
.site-nav li { margin: 0; border-bottom: 1px solid var(--line); }
.site-nav li:last-child { border-bottom: 0; }
.site-nav li a { display: block; padding: 12px 0; }
.site-nav .nav-request { padding-top: 14px; }
.site-nav .nav-request a { display: flex; color: var(--on-copper); }

@media (min-width: 1100px) {
  .nav-toggle { display: none; }
  .site-nav, .no-js .site-nav { display: block; position: static; padding: 0; border: 0; background: none; width: auto; margin-left: auto; }
  .site-nav ul { display: flex; align-items: center; gap: 20px; }
  .site-nav a { white-space: nowrap; font-size: 0.95rem; }
  .site-nav li { border: 0; }
  .site-nav li a { padding: 6px 0; }
  .site-nav .nav-request { padding: 0; }
  .site-nav .nav-request a { padding: 0.45em 1em; min-height: 42px; font-size: 1.05rem; }
  .header-tools { margin-left: 0; order: 3; }
  .no-js .site-header .wrap { flex-wrap: nowrap; }
}

/* Hero */
.hero { position: relative; overflow: hidden; border-bottom: 1px solid var(--line); }
.hero .wrap { position: relative; display: grid; gap: 32px; padding-top: 48px; padding-bottom: 56px; }
.hero-copy { position: relative; z-index: 2; }
.hero-copy p.sub { font-size: 1.2rem; color: var(--muted); max-width: 34em; }
.hero-art { position: relative; z-index: 1; color: var(--ink); }
.hero-art svg { display: block; width: 100%; height: auto; }
@media (min-width: 960px) {
  .hero .wrap { grid-template-columns: 1.05fr 0.95fr; align-items: center; padding-top: 80px; padding-bottom: 88px; }
  .hero--simple .wrap { grid-template-columns: 1.3fr 0.7fr; }
}
.hero--simple .hero-art { max-width: 300px; justify-self: center; color: var(--copper); }

/* Sections */
.section { padding: 56px 0; }
.section + .section { border-top: 1px solid var(--line); }
.section--alt { background: var(--bg-alt); }
@media (min-width: 960px) { .section { padding: 80px 0; } }
.section-head { max-width: 44em; margin-bottom: 32px; }
.section-head p { color: var(--muted); }
.prose { max-width: 46em; }

.cards { display: grid; gap: 16px; grid-template-columns: 1fr; }
@media (min-width: 680px) { .cards { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1040px) { .cards--4 { grid-template-columns: repeat(4, 1fr); } .cards--3 { grid-template-columns: repeat(3, 1fr); } }
.card { position: relative; background: var(--surface); border: 1px solid var(--line); border-radius: 2px; padding: 24px; box-shadow: var(--shadow); }
.card::before { content: ""; position: absolute; left: -1px; top: -1px; width: 28px; height: 3px; background: var(--copper); }
.card h3 { margin-bottom: 0.35em; }
.card p:last-child, .card ul:last-child { margin-bottom: 0; }
.card .art { width: 96px; height: 72px; color: var(--copper); margin-bottom: 14px; display: block; }

/* Numbered step list */
.steps { list-style: none; padding: 0; margin: 0; counter-reset: step; display: grid; gap: 0; }
.steps > li { counter-increment: step; position: relative; padding: 0 0 26px 64px; margin: 0; }
.steps > li::before {
  content: counter(step, decimal-leading-zero);
  position: absolute; left: 0; top: 0; width: 44px; height: 44px; display: grid; place-items: center;
  font-family: var(--font-mono); font-size: 0.9rem; color: var(--copper); border: 1px solid var(--copper); background: var(--bg); z-index: 1;
}
.steps > li::after { content: ""; position: absolute; left: 22px; top: 44px; bottom: 0; border-left: 1px dashed var(--line); }
.steps > li:last-child { padding-bottom: 0; }
.steps > li:last-child::after { display: none; }
.steps > li p { margin: 0; padding-top: 9px; }
.section--alt .steps > li::before { background: var(--bg-alt); }

/* Feature list (bold lead-in paragraphs) */
.features { display: grid; gap: 28px; }
@media (min-width: 860px) { .features--2 { grid-template-columns: repeat(2, 1fr); column-gap: 48px; } }
.feature { border-top: 1px solid var(--line); padding-top: 18px; }
.feature h3 { margin-bottom: 0.3em; }
.feature p { margin: 0; }

/* Note and highlight boxes */
.callout { background: var(--copper-soft); border: 1px solid var(--copper); border-left-width: 4px; padding: 22px 24px; border-radius: 2px; max-width: 52em; }
.callout h2 { font-size: 1.7rem; }
.callout p:last-child { margin-bottom: 0; }
.note { background: var(--green-soft); border-left: 4px solid var(--green); padding: 18px 20px; border-radius: 2px; max-width: 52em; margin-top: 24px; }
.note p:last-child { margin-bottom: 0; }

/* Services */
.service { display: grid; gap: 16px 48px; padding: 48px 0; border-top: 1px solid var(--line); scroll-margin-top: 84px; }
.service:first-of-type { border-top: 0; padding-top: 0; }
.service-head p { color: var(--muted); }
.service-head .mono { color: var(--copper); }
.service-lists { display: grid; gap: 20px; }
@media (min-width: 720px) { .service-lists { grid-template-columns: 1fr 1fr; } }
@media (min-width: 1000px) { .service { grid-template-columns: 0.9fr 1.6fr; } }
.list-box { background: var(--surface); border: 1px solid var(--line); padding: 20px 22px; border-radius: 2px; }
.list-box h3 { font-family: var(--font-mono); font-size: 0.8rem; font-weight: 400; letter-spacing: 0.12em; text-transform: uppercase; color: var(--copper); margin-bottom: 12px; }
.list-box ul { margin: 0; padding-left: 1.1em; }
.list-box li::marker { color: var(--copper); }
.service .note { grid-column: 1 / -1; }
.service-intro { font-style: italic; color: var(--muted); }

/* Layer diagram */
.layers { background: var(--surface); border: 1px solid var(--line); border-radius: 2px; padding: 16px; }
.layer-toggles { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 12px; }
.layer-toggle {
  font-family: var(--font-mono); font-size: 0.8rem; letter-spacing: 0.08em; text-transform: uppercase;
  min-height: 40px; padding: 0 14px; border: 1px solid var(--line); border-radius: 2px; background: transparent; color: var(--muted); cursor: pointer;
  display: inline-flex; align-items: center; gap: 8px;
}
.layer-toggle::before { content: ""; width: 10px; height: 10px; border: 1px solid currentColor; }
.layer-toggle[aria-pressed="true"] { color: var(--copper); border-color: var(--copper); background: var(--copper-soft); }
.layer-toggle[aria-pressed="true"]::before { background: currentColor; }
.layers svg { display: block; width: 100%; height: auto; color: var(--ink); }
.layer { transition: opacity 0.25s ease; }
.layer.is-off { opacity: 0; }

/* How we work flow */
.flow { list-style: none; margin: 32px 0 0; padding: 0; display: grid; gap: 10px; counter-reset: flow; }
.flow li { margin: 0; counter-increment: flow; }
.flow a {
  display: flex; align-items: center; gap: 12px; height: 100%; padding: 14px 16px;
  background: var(--surface); border: 1px solid var(--line); border-radius: 2px; text-decoration: none; color: var(--ink);
  font-family: var(--font-head); font-weight: 600; font-size: 1.2rem; line-height: 1.15;
}
.flow a::before { content: counter(flow, decimal-leading-zero); font-family: var(--font-mono); font-size: 0.8rem; color: var(--copper); }
.flow a:hover { border-color: var(--copper); color: var(--copper); }
@media (min-width: 900px) {
  .flow { grid-template-columns: repeat(5, 1fr); gap: 0; }
  .flow li { position: relative; padding-right: 22px; }
  .flow li:last-child { padding-right: 0; }
  .flow li:not(:last-child)::after { content: ""; position: absolute; right: 5px; top: 50%; width: 12px; height: 12px; border-top: 2px solid var(--copper); border-right: 2px solid var(--copper); transform: translateY(-50%) rotate(45deg); }
  .flow a { flex-direction: column; align-items: flex-start; font-size: 1.1rem; }
}
.method { padding: 40px 0; border-top: 1px solid var(--line); display: grid; gap: 8px 48px; scroll-margin-top: 84px; }
.method:first-child { border-top: 0; padding-top: 0; }
@media (min-width: 960px) { .method { grid-template-columns: 0.8fr 1.6fr; } }
.method h2 { font-size: clamp(1.6rem, 3vw, 2.1rem); }
.method-body > :last-child { margin-bottom: 0; }

/* Who we work with */
.who { list-style: none; padding: 0; margin: 0; display: grid; gap: 16px; }
@media (min-width: 680px) { .who { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1040px) { .who { grid-template-columns: repeat(4, 1fr); } }
.who li { margin: 0; }

/* Sector blocks (energy) */
.sector { display: grid; gap: 20px 48px; padding: 48px 0; border-top: 1px solid var(--line); }
.sector:first-of-type { border-top: 0; padding-top: 0; }
.sector .art { width: 150px; height: 112px; color: var(--copper); }
@media (min-width: 960px) { .sector { grid-template-columns: 180px 1fr 1fr; align-items: start; } .sector .art { width: 170px; height: 128px; } }

/* CTA band */
.cta { border-top: 1px solid var(--line); }
.cta .wrap { padding-top: 56px; padding-bottom: 64px; display: grid; gap: 16px; }
.cta h2 { margin: 0; }
.cta p { margin: 0; color: var(--muted); max-width: 40em; font-size: 1.15rem; }
@media (min-width: 900px) { .cta .wrap { grid-template-columns: 1fr auto; align-items: center; column-gap: 48px; } .cta .btn-row { margin: 0; grid-row: 1 / span 2; grid-column: 2; } }

/* Request form */
.request-grid { display: grid; gap: 40px; }
@media (min-width: 1000px) { .request-grid { grid-template-columns: 1.5fr 1fr; gap: 64px; align-items: start; } }
.form { background: var(--surface); border: 1px solid var(--line); border-radius: 2px; padding: 24px 20px; }
@media (min-width: 720px) { .form { padding: 32px; } }
.form-grid { display: grid; gap: 20px; }
@media (min-width: 720px) { .form-grid { grid-template-columns: 1fr 1fr; } .field--full { grid-column: 1 / -1; } }
.field label { display: block; font-weight: 600; margin-bottom: 6px; }
.field .req { color: var(--copper); }
.field .opt { font-weight: 400; color: var(--muted); font-size: 0.9em; }
.field .help { display: block; font-size: 0.9rem; color: var(--muted); margin-top: 6px; }
.field input, .field select, .field textarea {
  width: 100%; min-height: 48px; padding: 10px 12px; font: inherit; color: var(--ink);
  background: var(--bg); border: 1px solid var(--line); border-radius: 2px;
}
.field textarea { min-height: 150px; resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus { border-color: var(--copper); outline: 2px solid var(--copper); outline-offset: 0; }
.form-note { font-size: 0.95rem; color: var(--muted); margin: 20px 0 0; }
.form-actions { margin-top: 20px; }
.form-consent { font-size: 0.95rem; color: var(--muted); margin: 14px 0 0; }
.form-status { margin: 16px 0 0; padding: 14px 16px; border-left: 4px solid var(--copper); background: var(--copper-soft); }
.form-status[hidden] { display: none; }
.form-status--ok { border-color: var(--green); background: var(--green-soft); }
.aside-block { border-top: 1px solid var(--line); padding-top: 20px; margin-bottom: 28px; }
.aside-block h2 { font-size: 1.6rem; }
.aside-block ol { padding-left: 1.3em; }
.aside-block li::marker { color: var(--copper); font-family: var(--font-mono); }

/* Footer */
.site-footer { border-top: 1px solid var(--line); color: var(--ink); font-size: 0.97rem; }
.site-footer .wrap { padding-top: 48px; padding-bottom: 32px; display: grid; gap: 28px; }
@media (min-width: 900px) { .site-footer .wrap { grid-template-columns: 1.3fr 1fr 1fr; gap: 40px; } .footer-bottom { grid-column: 1 / -1; } }
.footer-label { font-family: var(--font-mono); font-size: 0.75rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted); margin: 0 0 4px; }
.site-footer p { margin: 0 0 14px; }
.footer-links ul { list-style: none; padding: 0; margin: 0; }
.footer-links li { margin: 0 0 6px; }
.footer-bottom { border-top: 1px solid var(--line); padding-top: 18px; color: var(--muted); font-size: 0.9rem; display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px; }
.footer-bottom p { margin: 0; }
.footer-brand { margin-bottom: 14px; }

/* Page not found */
.notfound { padding: 96px 0; }

/* Line art defaults */
.line-art { fill: none; stroke: currentColor; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }

/* Hero survey drawing */
.survey .gridline { stroke: var(--line); stroke-width: 1; }
.survey .gridline--minor { stroke: var(--grid); stroke-width: 1; }
.survey .contour { fill: none; stroke: var(--muted); stroke-width: 1; opacity: 0.45; }
.survey .contour--index { opacity: 0.7; stroke-width: 1.3; }
.survey .label { font-family: var(--font-mono); font-size: 11px; fill: var(--muted); letter-spacing: 0.04em; }
.survey .label--copper { fill: var(--copper); }
.survey .tract { fill: none; stroke: var(--copper); stroke-width: 2.5; stroke-linejoin: miter; stroke-dasharray: 1400; stroke-dashoffset: 1400; animation: draw 2.4s ease-out 0.3s forwards; }
.survey .fill-layer { opacity: 0; animation: fade 0.8s ease-out forwards; }
.survey .fill-surface { fill: var(--copper); fill-opacity: 0.1; animation-delay: 2.4s; }
.survey .fill-minerals { fill: url(#hatch); animation-delay: 3s; }
.survey .easement { fill: none; stroke: var(--green); stroke-width: 2; stroke-dasharray: 2 6; opacity: 0; animation: fade 0.8s ease-out 3.6s forwards; }
.survey .row-band { fill: var(--muted); fill-opacity: 0.12; stroke: var(--muted); stroke-width: 1; stroke-dasharray: 8 4; opacity: 0; animation: fade 0.8s ease-out 4.1s forwards; }
.survey .corner { fill: var(--bg); stroke: var(--copper); stroke-width: 2; opacity: 0; animation: fade 0.4s ease-out 2.6s forwards; }
.survey .layer-tag { opacity: 0; animation: fade 0.6s ease-out forwards; }
@keyframes draw { to { stroke-dashoffset: 0; } }
@keyframes fade { to { opacity: 1; } }
@media (prefers-reduced-motion: reduce) {
  .survey .tract { animation: none; stroke-dashoffset: 0; }
  .survey .fill-layer, .survey .easement, .survey .row-band, .survey .corner, .survey .layer-tag { animation: none; opacity: 1; }
  .layer { transition: none; }
}

/* SVG pattern and layer diagram parts (styled here so the colours follow the theme) */
.hatch-line { stroke: var(--copper); stroke-width: 1.2; stroke-opacity: 0.5; }
.ld-grid { stroke: var(--grid); stroke-width: 1; }
.ld-surface { fill: var(--copper); fill-opacity: 0.07; stroke: var(--ink); stroke-width: 1.6; }
.ld-parcel { fill: none; stroke: var(--ink); stroke-width: 1.2; }
.ld-label { font-family: var(--font-mono); font-size: 12px; fill: var(--muted); }
.ld-label--copper { font-size: 11px; fill: var(--copper); }
.ld-mineral { fill: url(#hatch2); stroke: var(--copper); stroke-width: 1.2; stroke-dasharray: 6 3; }
.ld-ease-edge { fill: none; stroke: var(--green); stroke-width: 2; stroke-dasharray: 2 6; }
.ld-ease-line { fill: none; stroke: var(--green); stroke-width: 3; }
.ld-row { fill: var(--muted); fill-opacity: 0.16; stroke: var(--muted); stroke-dasharray: 8 4; }
.ld-row-center { stroke: var(--muted); stroke-dasharray: 12 10; }
@media (min-width: 900px) { .features--3 { grid-template-columns: repeat(3, 1fr); column-gap: 40px; } }