/* PGI Geotechnical Group — Stylesheet */

/* ── Reset ───────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; }
body { -webkit-font-smoothing: antialiased; }
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { font: inherit; cursor: pointer; border: none; background: none; padding: 0; }

/* ── Tokens ──────────────────────────────────────────────── */
:root {
  --bg:       #FAFAF8;
  --bg-alt:   #F3F3F0;
  --dark:     #0C1008;
  --dark-2:   #191D14;
  --text:     #1C1C18;
  --text-dim: #505048;
  --stone:    #888882;
  --rule:     #DEDED8;
  --rule-mid: #C4C4BC;
  --green:    #4D9416;
  --green-lt: #5CAF1A;
  --gold:     #B8920A;

  --geo-topsoil: #8B6040;
  --geo-clay:    #6B4428;
  --geo-sclay:   #A07840;
  --geo-sand:    #C4A060;
  --geo-wrock:   #808090;
  --geo-rock:    #585870;

  --font-display: 'Barlow', sans-serif;
  --font-body:    'Inter', system-ui, sans-serif;
  --max-w:  1280px;
  --gutter: 2.5rem;
  --ease:   cubic-bezier(0.4, 0, 0.2, 1);
}

/* ── Base ────────────────────────────────────────────────── */
body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.65;
  background: var(--bg);
  color: var(--text);
}
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

/* ── Typography ──────────────────────────────────────────── */
.label {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--green);
}
.label::before {
  content: '';
  display: block;
  width: 18px;
  height: 1px;
  background: var(--green);
  flex-shrink: 0;
}
h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.1;
}
.section-heading { font-size: clamp(2rem, 3.2vw, 3.2rem); }
.section-sub {
  font-size: 0.97rem;
  color: var(--text-dim);
  line-height: 1.78;
  max-width: 540px;
  margin-top: 1rem;
}
.accent { color: var(--green); }

/* ── Navigation ──────────────────────────────────────────── */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 1.4rem 0;
  background: var(--bg);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s var(--ease), padding 0.3s var(--ease), box-shadow 0.3s var(--ease);
}
.navbar.scrolled {
  padding: 1rem 0;
  border-bottom-color: var(--rule);
  box-shadow: 0 1px 8px rgba(28,28,24,0.05);
}
.nav-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo { display: flex; align-items: center; gap: 0.75rem; }
.nav-logo-img { height: 34px; width: auto; }
.nav-logo-text {
  font-family: var(--font-display);
  font-size: 0.96rem;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--text);
}
.nav-logo-sub {
  display: block;
  font-family: var(--font-body);
  font-size: 0.56rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--stone);
  font-weight: 500;
}
.nav-links { display: flex; align-items: center; gap: 2rem; }
.nav-links a {
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-dim);
  transition: color 0.2s;
  position: relative;
}
.nav-links a::after {
  content: '';
  position: absolute;
  left: 0; bottom: -2px;
  width: 0; height: 1px;
  background: var(--green);
  transition: width 0.25s var(--ease);
}
.nav-links a:hover { color: var(--text); }
.nav-links a:hover::after,
.nav-links a[aria-current="page"]::after { width: 100%; }
.nav-links a[aria-current="page"] { color: var(--text); }
.nav-cta {
  padding: 0.52rem 1.25rem !important;
  background: var(--green) !important;
  color: var(--bg) !important;
  border-radius: 2px;
  letter-spacing: 0.1em !important;
  transition: background 0.2s !important;
}
.nav-cta::after { display: none !important; }
.nav-cta:hover { background: var(--green-lt) !important; }
.nav-phone {
  display: none; /* shown only on mobile via media query */
}
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
  z-index: 210;
}
.nav-toggle span {
  display: block;
  width: 24px;
  height: 1.5px;
  background: var(--text);
  transition: transform 0.25s, opacity 0.25s;
}
.nav-toggle.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* ── Hero ────────────────────────────────────────────────── */
.hero {
  position: relative;
  overflow: hidden;
  padding: 11rem 0 7rem;
  border-bottom: 1px solid var(--rule);
}
.hero-canvas {
  display: block;
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
  background: transparent;
}
.hero > .container { position: relative; z-index: 1; }
.hero-inner {
  display: grid;
  grid-template-columns: 1fr 360px;
  gap: 5rem;
  align-items: center;
}
.hero-brand {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 2.2rem;
}
.hero-brand-logo { height: 80px; width: auto; }
.hero-brand-name {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  line-height: 1.25;
  color: var(--text);
}
.hero-brand-sub {
  display: block;
  font-size: 0.62rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--stone);
  margin-top: 0.2rem;
}
.hero-h1 {
  font-family: var(--font-display);
  font-size: clamp(3rem, 5.5vw, 6.2rem);
  line-height: 1.0;
  letter-spacing: -0.03em;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 1.6rem;
}
.hero-body {
  font-size: 1.02rem;
  color: var(--text-dim);
  line-height: 1.75;
  max-width: 500px;
  margin-bottom: 2.2rem;
}
.hero-actions { display: flex; gap: 0.9rem; flex-wrap: wrap; }
.hero-stats {
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--rule);
  display: flex;
  gap: 2.5rem;
  flex-wrap: wrap;
}
.hero-stat-num {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--text);
  line-height: 1;
  display: block;
}
.hero-stat-num .accent { color: var(--green); }
.hero-stat-label {
  font-size: 0.63rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--stone);
  margin-top: 0.22rem;
  display: block;
}

/* Engineering drawing title block — right panel of hero ── */
.hero-plate {
  border: 1.5px solid var(--rule-mid);
  position: relative;
  overflow: hidden;
  align-self: center;
}
.hero-plate::before {
  content: '';
  position: absolute;
  inset: 5px;
  border: 0.5px solid var(--rule);
  pointer-events: none;
  z-index: 0;
}
.plate-head {
  padding: 1.1rem 1.4rem;
  border-bottom: 1.5px solid var(--rule-mid);
  background: var(--bg-alt);
  position: relative;
  z-index: 1;
}
.plate-firm {
  font-family: var(--font-display);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--text);
  margin-bottom: 0.22rem;
}
.plate-addr {
  font-size: 0.62rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--stone);
}
.plate-body {
  border-bottom: 1.5px solid var(--rule-mid);
  position: relative;
  z-index: 1;
}
.plate-body:last-of-type { border-bottom: none; }
.plate-row {
  display: flex;
  border-bottom: 1px solid var(--rule);
}
.plate-row:last-child { border-bottom: none; }
.plate-key,
.plate-val {
  padding: 0.55rem 1.4rem;
  font-size: 0.65rem;
  display: flex;
  align-items: center;
}
.plate-key {
  width: 50%;
  color: var(--stone);
  border-right: 1px solid var(--rule);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-weight: 500;
}
.plate-val {
  font-weight: 700;
  font-family: var(--font-display);
  color: var(--text);
  letter-spacing: 0.02em;
  font-size: 0.72rem;
}
.plate-stats .plate-val {
  color: var(--green);
  font-size: 0.85rem;
}
.plate-certs {
  padding: 0.9rem 1.4rem;
  background: var(--bg-alt);
  position: relative;
  z-index: 1;
}
.plate-certs li {
  font-size: 0.6rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--text-dim);
  padding: 0.22rem 0;
  padding-left: 0.9rem;
  position: relative;
}
.plate-certs li::before {
  content: '●';
  position: absolute;
  left: 0;
  color: var(--green);
  font-size: 0.42rem;
  top: 0.38rem;
}

/* ── Buttons ─────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.82rem 1.9rem;
  font-family: var(--font-body);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border-radius: 2px;
  transition: all 0.2s var(--ease);
  cursor: pointer;
  border: 1px solid transparent;
}
.btn-primary { background: var(--green); color: var(--bg); border-color: var(--green); }
.btn-primary:hover { background: var(--green-lt); border-color: var(--green-lt); }
.btn-outline { background: transparent; color: var(--text); border-color: var(--rule-mid); }
.btn-outline:hover { border-color: var(--text-dim); }

/* ── Strata divider ──────────────────────────────────────── */
.strata-divider { height: 4px; display: flex; width: 100%; }
.strata-divider span { display: block; }
.strata-divider span:nth-child(1) { flex: 0.5; background: var(--geo-topsoil); }
.strata-divider span:nth-child(2) { flex: 1.2; background: var(--geo-clay); }
.strata-divider span:nth-child(3) { flex: 1;   background: var(--geo-sclay); }
.strata-divider span:nth-child(4) { flex: 1.1; background: var(--geo-sand); }
.strata-divider span:nth-child(5) { flex: 1;   background: var(--geo-wrock); }
.strata-divider span:nth-child(6) { flex: 2;   background: var(--geo-rock); }

/* ── Services section (homepage) ─────────────────────────── */
.services-section { padding: 7rem 0; border-bottom: 1px solid var(--rule); }
.section-header {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: end;
  margin-bottom: 3.5rem;
}
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--rule);
  border: 1px solid var(--rule);
  border-radius: 2px;
  overflow: hidden;
}
.service-card {
  background: var(--bg);
  padding: 2.2rem;
  transition: background 0.2s var(--ease), border-top-color 0.2s;
  border-top: 3px solid transparent;
}
.service-card:hover {
  background: var(--bg-alt);
  border-top-color: var(--green);
}
.s-num {
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  color: var(--green);
  margin-bottom: 1.2rem;
  display: block;
}
.service-card h3 {
  font-size: 1.1rem;
  margin-bottom: 0.7rem;
  line-height: 1.25;
  color: var(--text);
}
.service-card p {
  font-size: 0.87rem;
  color: var(--text-dim);
  line-height: 1.72;
  margin-bottom: 1.2rem;
}
.card-link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--green);
  transition: gap 0.2s;
}
.service-card:hover .card-link { gap: 0.6rem; }

/* ── Process section ─────────────────────────────────────── */
.process-section {
  padding: 7rem 0;
  background: var(--bg-alt);
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
}
.process-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin-top: 3.5rem;
  position: relative;
}
.process-steps::before {
  content: '';
  position: absolute;
  top: 1.2rem;
  left: calc(25% / 2);
  right: calc(25% / 2);
  height: 1px;
  background: var(--rule-mid);
}
.process-step {
  padding: 0 2rem;
  padding-top: 3rem;
  position: relative;
}
.step-dot {
  position: absolute;
  top: calc(1.2rem - 5px);
  left: 2rem;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--green);
  border: 2px solid var(--bg-alt);
}
.step-num {
  font-size: 0.58rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  color: var(--green);
  margin-bottom: 0.8rem;
  display: block;
}
.process-step h3 {
  font-size: 1.1rem;
  margin-bottom: 0.7rem;
  color: var(--text);
}
.process-step p {
  font-size: 0.87rem;
  color: var(--text-dim);
  line-height: 1.72;
}

/* ── About section (homepage) ────────────────────────────── */
.about-section {
  padding: 7rem 0;
  border-bottom: 1px solid var(--rule);
}
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: start;
}
.about-text p {
  color: var(--text-dim);
  font-size: 0.97rem;
  line-height: 1.8;
  margin-bottom: 1.2rem;
}
.about-text p:last-child { margin-bottom: 0; }
.credentials-box {
  border: 1px solid var(--rule);
  border-radius: 2px;
  overflow: hidden;
  margin-top: 1rem;
}
.credentials-box-head {
  padding: 0.9rem 1.5rem;
  border-bottom: 1px solid var(--rule);
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--stone);
  background: var(--bg-alt);
}
.credentials-list li {
  padding: 0.85rem 1.5rem;
  border-bottom: 1px solid var(--rule);
  font-size: 0.84rem;
  color: var(--text-dim);
  display: flex;
  align-items: center;
  gap: 0.7rem;
  background: var(--bg);
}
.credentials-list li:last-child { border-bottom: none; }
.credentials-list li::before {
  content: '';
  display: block;
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--green);
  flex-shrink: 0;
}

/* ── Differentiators section ─────────────────────────────── */
.diff-section {
  padding: 7rem 0;
  background: var(--bg-alt);
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
}
.diff-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--rule);
  border: 1px solid var(--rule);
  border-radius: 2px;
  overflow: hidden;
  margin-top: 3.5rem;
}
.diff-item {
  background: var(--bg-alt);
  padding: 2.4rem 2rem;
  transition: background 0.2s var(--ease);
}
.diff-item:hover { background: var(--bg); }
.diff-icon {
  font-family: var(--font-display);
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--green);
  line-height: 1;
  margin-bottom: 1.2rem;
}
.diff-item h3 {
  font-size: 1rem;
  margin-bottom: 0.7rem;
  line-height: 1.3;
  color: var(--text);
}
.diff-item p {
  font-size: 0.85rem;
  color: var(--text-dim);
  line-height: 1.72;
}

/* ── Stats strip ─────────────────────────────────────────── */
.stats-strip { padding: 4rem 0; border-bottom: 1px solid var(--rule); }
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border: 1px solid var(--rule);
  border-radius: 2px;
  overflow: hidden;
}
.stat-item {
  padding: 2rem 2.5rem;
  border-right: 1px solid var(--rule);
}
.stat-item:last-child { border-right: none; }
.stat-num {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 3.5vw, 3.8rem);
  font-weight: 700;
  color: var(--text);
  line-height: 1;
  display: block;
  margin-bottom: 0.4rem;
}
.stat-num .accent { color: var(--green); }
.stat-label {
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--stone);
}

/* ── Locations strip ─────────────────────────────────────── */
.locations-strip { padding: 6rem 0; border-bottom: 1px solid var(--rule); }
.locations-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1px;
  background: var(--rule);
  border: 1px solid var(--rule);
  border-radius: 2px;
  overflow: hidden;
  margin-top: 3rem;
}
.location-item {
  background: var(--bg);
  padding: 1.3rem 1.5rem;
  transition: background 0.2s var(--ease), border-top-color 0.2s;
  border-top: 3px solid transparent;
}
.location-item:hover {
  background: var(--bg-alt);
  border-top-color: var(--green);
}
.location-item h4 {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 0.2rem;
  line-height: 1.3;
  color: var(--text);
}
.location-item p { font-size: 0.65rem; color: var(--stone); letter-spacing: 0.04em; }

/* ── CTA section (dark) ──────────────────────────────────── */
.cta-section {
  padding: 8rem 0;
  background: var(--dark);
  text-align: center;
}
.cta-section .label { justify-content: center; color: var(--green); }
.cta-section .label::before { background: var(--green); }
.cta-heading {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 4.5vw, 5rem);
  font-weight: 700;
  margin: 1.2rem auto;
  max-width: 680px;
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--bg);
}
.cta-heading .accent { color: var(--green); }
.cta-sub {
  color: rgba(250,250,248,0.58);
  font-size: 1rem;
  max-width: 520px;
  margin: 0 auto 2.5rem;
  line-height: 1.72;
}
.cta-actions { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }
.cta-section .btn-outline {
  border-color: rgba(250,250,248,0.22);
  color: var(--bg);
}
.cta-section .btn-outline:hover { border-color: rgba(250,250,248,0.52); }

/* ── Footer ──────────────────────────────────────────────── */
.footer {
  background: var(--dark-2);
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 5rem 0 2.5rem;
}
.footer-top {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 4rem;
}
.footer-brand p {
  font-size: 0.84rem;
  color: rgba(250,250,248,0.4);
  line-height: 1.7;
  margin-top: 1rem;
  max-width: 240px;
}
.footer .nav-logo-text { color: rgba(250,250,248,0.88); }
.footer .nav-logo-sub  { color: rgba(250,250,248,0.3); }
.footer h5 {
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(250,250,248,0.3);
  margin-bottom: 1.2rem;
}
.footer ul li { margin-bottom: 0.6rem; }
.footer ul li a {
  font-size: 0.84rem;
  color: rgba(250,250,248,0.55);
  transition: color 0.2s;
}
.footer ul li a:hover { color: rgba(250,250,248,0.92); }
.footer ul li span { font-size: 0.84rem; color: rgba(250,250,248,0.35); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.06);
  padding-top: 1.8rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}
.footer-copy, .footer-abn { font-size: 0.74rem; color: rgba(250,250,248,0.28); }

/* ── Inner page hero ─────────────────────────────────────── */
.page-hero {
  position: relative;
  overflow: hidden;
  padding: 10rem 0 5rem;
  border-bottom: 1px solid var(--rule);
  background: linear-gradient(180deg, #D8D0BE 0%, #E8E2D6 45%, var(--bg) 100%);
}
.page-hero > .container { position: relative; z-index: 1; }
.page-hero .label { margin-bottom: 1.2rem; }
.page-hero h1 {
  font-size: clamp(2.6rem, 5vw, 5.5rem);
  max-width: 800px;
  margin-bottom: 1.5rem;
  letter-spacing: -0.02em;
  color: var(--text);
}
.page-hero h1 .accent { color: var(--green); }
.page-hero p {
  font-size: 1rem;
  color: var(--text-dim);
  max-width: 560px;
  line-height: 1.75;
}

/* ── Services page ───────────────────────────────────────── */
.services-content { padding: 5rem 0; }
.service-block {
  padding: 4.5rem 0;
  border-bottom: 1px solid var(--rule);
}
.service-block:last-child { border-bottom: none; }
.service-block-grid {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 4rem;
}
.service-block-meta { position: sticky; top: 6rem; align-self: start; }
.s-tag {
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--green);
  display: block;
  margin-bottom: 0.8rem;
}
.service-block-meta h2 { font-size: 1.6rem; line-height: 1.2; color: var(--text); }
.service-block-body > p {
  color: var(--text-dim);
  font-size: 0.97rem;
  line-height: 1.8;
  margin-bottom: 1.2rem;
}
.deliverables {
  margin-top: 2rem;
  padding: 1.8rem;
  background: var(--bg-alt);
  border: 1px solid var(--rule);
  border-radius: 2px;
}
.deliverables h4 {
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--stone);
  margin-bottom: 1rem;
}
.deliverables ul { display: grid; grid-template-columns: 1fr 1fr; gap: 0.5rem 2rem; }
.deliverables li {
  font-size: 0.85rem;
  color: var(--text-dim);
  padding-left: 1rem;
  position: relative;
}
.deliverables li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--green);
  font-size: 0.75rem;
}

/* ── About page ──────────────────────────────────────────── */
.about-story-section { padding: 6rem 0; border-bottom: 1px solid var(--rule); }
.about-story-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: start;
}
.about-story-text p {
  color: var(--text-dim);
  font-size: 0.97rem;
  line-height: 1.8;
  margin-bottom: 1.2rem;
}
.values-section {
  padding: 6rem 0;
  border-bottom: 1px solid var(--rule);
  background: var(--bg-alt);
}
.values-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--rule);
  border: 1px solid var(--rule);
  border-radius: 2px;
  overflow: hidden;
  margin-top: 3rem;
}
.value-card {
  background: var(--bg-alt);
  padding: 2rem;
  transition: background 0.2s var(--ease);
}
.value-card:hover { background: var(--bg); }
.v-num {
  font-size: 0.58rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--green);
  margin-bottom: 1rem;
  display: block;
}
.value-card h3 { font-size: 1.05rem; margin-bottom: 0.65rem; line-height: 1.3; color: var(--text); }
.value-card p { font-size: 0.84rem; color: var(--text-dim); line-height: 1.72; }
.sectors-section { padding: 6rem 0; border-bottom: 1px solid var(--rule); }
.sectors-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: start;
}
.sectors-list {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--rule);
  border-radius: 2px;
  overflow: hidden;
  margin-top: 1.5rem;
}
.sectors-list li {
  padding: 0.9rem 1.3rem;
  border-bottom: 1px solid var(--rule);
  font-size: 0.9rem;
  color: var(--text-dim);
  display: flex;
  align-items: center;
  gap: 0.7rem;
}
.sectors-list li:last-child { border-bottom: none; }
.sectors-list li::before {
  content: '';
  display: block;
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--green);
  flex-shrink: 0;
}

/* ── Locations page ──────────────────────────────────────── */
.regions-section { padding: 5rem 0; }
.regions-intro { max-width: 640px; margin-bottom: 3rem; }
.regions-intro p { color: var(--text-dim); font-size: 0.97rem; line-height: 1.78; margin-top: 1rem; }
.regions-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--rule);
  border: 1px solid var(--rule);
  border-radius: 2px;
  overflow: hidden;
}
.region-card {
  position: relative;
  background: var(--bg);
  padding: 2.2rem;
  padding-right: 6.5rem;
  transition: background 0.2s var(--ease), border-left-color 0.2s;
  border-left: 3px solid transparent;
}
.region-card:hover {
  background: var(--bg-alt);
  border-left-color: var(--green);
}
.r-tag {
  font-size: 0.58rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--green);
  margin-bottom: 0.6rem;
  display: block;
}
.region-card h3 { font-size: 1.2rem; margin-bottom: 0.7rem; color: var(--text); }
.region-card p { font-size: 0.84rem; color: var(--text-dim); line-height: 1.72; }

/* ── Location mini-map ───────────────────────────────────── */
.region-map {
  position: absolute;
  top: 2rem;
  right: 2rem;
  width: 64px;
  height: auto;
  opacity: 0.65;
  transition: opacity 0.25s var(--ease);
}
.region-card:hover .region-map { opacity: 1; }
.qld-shape {
  fill: none;
  stroke: var(--stone);
  stroke-width: 1.5;
  stroke-linejoin: round;
  stroke-linecap: round;
}
.qld-grid line {
  stroke: var(--rule-mid);
  stroke-width: 0.5;
}
.loc-hq-ref {
  fill: var(--stone);
  opacity: 0.45;
}
.loc-dot { fill: var(--green); }
.loc-ring {
  fill: none;
  stroke: var(--green);
  stroke-width: 1.2;
  animation: loc-pulse 2.6s ease-out infinite;
  transform-box: fill-box;
  transform-origin: center;
}
@keyframes loc-pulse {
  0%   { transform: scale(1); opacity: 0.9; }
  100% { transform: scale(5); opacity: 0; }
}
@media (max-width: 480px) { .region-map { display: none; } }

/* ── Locations hero with QLD map ─────────────────────────── */
.loc-hero { padding: 10rem 0 3rem; }
.loc-hero-container {
  display: grid;
  grid-template-columns: 1fr 420px;
  gap: 4rem;
  align-items: center;
}
.loc-hero-text { max-width: 560px; }
.loc-map-panel {
  position: relative;
  height: 500px;
  flex-shrink: 0;
}
#qld-map-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
}
@media (max-width: 1100px) {
  .loc-hero-container {
    grid-template-columns: 1fr 340px;
    gap: 2.5rem;
  }
  .loc-map-panel { height: 420px; }
}
@media (max-width: 768px) {
  .loc-hero { padding: 8rem 0 2rem; }
  .loc-hero-container { grid-template-columns: 1fr; gap: 0; }
  .loc-map-panel { height: 320px; margin-top: 1rem; }
}

.regions-note {
  margin-top: 2.5rem;
  padding: 1.8rem 2rem;
  border: 1px solid var(--rule);
  border-radius: 2px;
  background: var(--bg-alt);
}
.regions-note p { font-size: 0.9rem; color: var(--text-dim); line-height: 1.72; }

/* ── Contact page ────────────────────────────────────────── */
.contact-section { padding: 5rem 0; }
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 5rem;
}
.contact-info-block { margin-top: 2.5rem; }
.contact-item { padding: 1.1rem 0; }
.contact-item-label {
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--stone);
  margin-bottom: 0.3rem;
}
.contact-item a { font-size: 0.97rem; color: var(--text); transition: color 0.2s; }
.contact-item a:hover { color: var(--green); }
.contact-item p { font-size: 0.97rem; color: var(--text-dim); }
.contact-rule { height: 1px; background: var(--rule); }
.response-note {
  margin-top: 2rem;
  padding: 1.4rem 1.6rem;
  border: 1px solid var(--rule);
  border-left: 3px solid var(--green);
  border-radius: 2px;
  background: var(--bg-alt);
}
.response-note .rn-head {
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--green);
  margin-bottom: 0.4rem;
  display: block;
}
.response-note p { font-size: 0.87rem; color: var(--text-dim); line-height: 1.7; }
.contact-form { display: flex; flex-direction: column; gap: 1.2rem; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1.2rem; }
.form-group { display: flex; flex-direction: column; gap: 0.4rem; }
.form-group label {
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-dim);
}
.form-group label span { color: var(--green); }
.form-group input,
.form-group select,
.form-group textarea {
  background: var(--bg);
  border: 1px solid var(--rule-mid);
  color: var(--text);
  padding: 0.8rem 1rem;
  font-family: var(--font-body);
  font-size: 0.92rem;
  border-radius: 2px;
  outline: none;
  transition: border-color 0.2s;
  -webkit-appearance: none;
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--stone); }
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus { border-color: var(--green); }
.form-group textarea { resize: vertical; min-height: 140px; }
.form-group select { cursor: pointer; }
.form-group select option { background: var(--bg-alt); color: var(--text); }
.form-note { font-size: 0.76rem; color: var(--stone); margin-top: 0.5rem; }

/* ── Reveal animations ───────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.85s var(--ease), transform 0.85s var(--ease);
}
.reveal.visible { opacity: 1; transform: none; }
.reveal-d1 { transition-delay: 0.15s; }
.reveal-d2 { transition-delay: 0.32s; }
.reveal-d3 { transition-delay: 0.50s; }
.reveal-d4 { transition-delay: 0.68s; }
.reveal-d5 { transition-delay: 0.86s; }

/* ── Responsive ──────────────────────────────────────────── */
@media (max-width: 1024px) {
  :root { --gutter: 2rem; }
  .hero-inner { grid-template-columns: 1fr; }
  .hero-plate { display: none; }
  .section-header { grid-template-columns: 1fr; gap: 1.2rem; }
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .process-steps { grid-template-columns: repeat(2, 1fr); gap: 2rem 0; }
  .process-steps::before { display: none; }
  .diff-grid { grid-template-columns: repeat(2, 1fr); }
  .about-grid { grid-template-columns: 1fr; gap: 3rem; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .stat-item:nth-child(2) { border-right: none; }
  .locations-grid { grid-template-columns: repeat(3, 1fr); }
  .footer-top { grid-template-columns: 1fr 1fr; gap: 2.5rem; }
  .service-block-grid { grid-template-columns: 1fr; gap: 2rem; }
  .service-block-meta { position: static; }
  .about-story-grid { grid-template-columns: 1fr; gap: 3rem; }
  .values-grid { grid-template-columns: 1fr 1fr; }
  .sectors-grid { grid-template-columns: 1fr; gap: 2.5rem; }
  .contact-grid { grid-template-columns: 1fr; gap: 3rem; }
  .regions-grid { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  :root { --gutter: 1.25rem; }
  .nav-links {
    display: none;
    flex-direction: column;
    position: fixed;
    inset: 0;
    background: var(--bg);
    justify-content: center;
    align-items: center;
    gap: 2.5rem;
    z-index: 200;
  }
  .nav-links.open { display: flex; }
  .nav-links a { font-size: 1rem; color: var(--text-dim); }
  .nav-cta { background: var(--green) !important; color: var(--bg) !important; }
  .nav-toggle { display: flex; }
  .nav-phone {
    display: flex;
    align-items: center;
    gap: 0.35rem;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--green);
    letter-spacing: 0.01em;
    text-decoration: none;
    padding: 0.38rem 0.7rem;
    border: 1px solid rgba(77,148,22,0.28);
    border-radius: 3px;
    background: rgba(77,148,22,0.06);
    white-space: nowrap;
    position: relative;
    z-index: 210; /* stays visible over the full-screen menu overlay */
  }
  .nav-phone::before {
    content: '';
    display: block;
    width: 14px;
    height: 14px;
    flex-shrink: 0;
    background-color: var(--green);
    -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='currentColor'%3E%3Cpath d='M6.62 10.79a15.05 15.05 0 0 0 6.59 6.59l2.2-2.2a1 1 0 0 1 1.01-.24 11.47 11.47 0 0 0 3.58.57 1 1 0 0 1 1 1v3.5a1 1 0 0 1-1 1A17 17 0 0 1 3 5a1 1 0 0 1 1-1h3.5a1 1 0 0 1 1 1 11.47 11.47 0 0 0 .57 3.58 1 1 0 0 1-.25 1.02l-2.2 2.19z'/%3E%3C/svg%3E");
    mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='currentColor'%3E%3Cpath d='M6.62 10.79a15.05 15.05 0 0 0 6.59 6.59l2.2-2.2a1 1 0 0 1 1.01-.24 11.47 11.47 0 0 0 3.58.57 1 1 0 0 1 1 1v3.5a1 1 0 0 1-1 1A17 17 0 0 1 3 5a1 1 0 0 1 1-1h3.5a1 1 0 0 1 1 1 11.47 11.47 0 0 0 .57 3.58 1 1 0 0 1-.25 1.02l-2.2 2.19z'/%3E%3C/svg%3E");
    -webkit-mask-repeat: no-repeat;
    mask-repeat: no-repeat;
    -webkit-mask-size: contain;
    mask-size: contain;
  }
  .services-grid { grid-template-columns: 1fr; }
  .diff-grid { grid-template-columns: 1fr; }
  .values-grid { grid-template-columns: 1fr; }
  .locations-grid { grid-template-columns: repeat(2, 1fr); }
  .form-row { grid-template-columns: 1fr; }
  .hero { padding: 8rem 0 4rem; }
  .hero-stats { gap: 1.5rem; }
  .hero-brand-logo { height: 60px; }
  .footer-top { grid-template-columns: 1fr; }
  .deliverables ul { grid-template-columns: 1fr; }
  .cta-actions { flex-direction: column; align-items: center; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .process-steps { grid-template-columns: 1fr; }
}
@media (max-width: 480px) {
  .stats-grid { grid-template-columns: 1fr; }
  .stat-item { border-right: none; border-bottom: 1px solid var(--rule); }
  .stat-item:last-child { border-bottom: none; }
  .locations-grid { grid-template-columns: 1fr 1fr; }
}

/* ── Service landing pages ───────────────────────────────────── */
.breadcrumb {
  padding: 0.9rem 0;
  border-bottom: 1px solid var(--rule);
  background: var(--bg);
}
.breadcrumb ol {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  flex-wrap: wrap;
}
.breadcrumb li {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.78rem;
  color: var(--stone);
}
.breadcrumb li + li::before {
  content: '/';
  color: var(--rule-mid);
}
.breadcrumb a {
  color: var(--stone);
  transition: color 0.2s;
}
.breadcrumb a:hover { color: var(--green); }
.breadcrumb li:last-child { color: var(--text-dim); }

.svc-overview {
  padding: 6rem 0;
  border-bottom: 1px solid var(--rule);
}
.svc-overview-grid {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 5rem;
  align-items: start;
}
.svc-overview-body p {
  color: var(--text-dim);
  font-size: 0.97rem;
  line-height: 1.8;
  margin-bottom: 1.2rem;
  margin-top: 1.6rem;
}
.svc-overview-body p:last-child { margin-bottom: 0; }
.svc-overview-aside .deliverables { position: sticky; top: 7rem; }

.svc-scenarios {
  padding: 6rem 0;
  background: var(--bg-alt);
  border-bottom: 1px solid var(--rule);
}
.svc-scenarios-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--rule);
  border: 1px solid var(--rule);
  border-radius: 2px;
  overflow: hidden;
  margin-top: 3rem;
}
.svc-scenario {
  background: var(--bg-alt);
  padding: 2rem;
  transition: background 0.2s var(--ease);
}
.svc-scenario:hover { background: var(--bg); }
.svc-scenario h3 {
  font-size: 1.05rem;
  color: var(--text);
  margin-bottom: 0.7rem;
  line-height: 1.3;
}
.svc-scenario p {
  font-size: 0.87rem;
  color: var(--text-dim);
  line-height: 1.72;
}

.svc-standards {
  padding: 2.5rem 0;
  border-bottom: 1px solid var(--rule);
}
.svc-standards-inner {
  display: flex;
  align-items: center;
  gap: 1.2rem;
  flex-wrap: wrap;
}
.svc-standards-label {
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--stone);
  white-space: nowrap;
  margin-right: 0.5rem;
}
.svc-std-badge {
  display: inline-flex;
  align-items: center;
  padding: 0.3rem 0.65rem;
  background: var(--bg-alt);
  border: 1px solid var(--rule-mid);
  border-radius: 2px;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--text-dim);
}

.related-svcs {
  padding: 6rem 0;
}
.related-svcs-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--rule);
  border: 1px solid var(--rule);
  border-radius: 2px;
  overflow: hidden;
  margin-top: 3rem;
}
.related-svc-card {
  background: var(--bg);
  padding: 2.2rem;
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
  text-decoration: none;
  transition: background 0.2s var(--ease), border-top-color 0.2s;
  border-top: 3px solid transparent;
}
.related-svc-card:hover {
  background: var(--bg-alt);
  border-top-color: var(--green);
}
.related-svc-card h3 {
  font-size: 1.1rem;
  color: var(--text);
  line-height: 1.25;
  margin: 0;
}
.related-svc-card p {
  font-size: 0.87rem;
  color: var(--text-dim);
  line-height: 1.72;
  flex: 1;
}
.related-svc-card .card-link { margin-top: 0.4rem; }

@media (max-width: 1024px) {
  .svc-overview-grid { grid-template-columns: 1fr; gap: 3rem; }
  .svc-overview-aside .deliverables { position: static; }
  .svc-scenarios-grid { grid-template-columns: 1fr 1fr; }
  .related-svcs-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .svc-scenarios-grid { grid-template-columns: 1fr; }
  .related-svcs-grid { grid-template-columns: 1fr; }
}

/* ── Hero borehole log panel ─────────────────────────────────── */
.hero-bore {
  border: 1px solid var(--rule-mid);
  background: var(--bg);
  display: flex;
  flex-direction: column;
  align-self: stretch;
  overflow: hidden;
}
.bore-hd {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  padding: 0.65rem 1rem;
  border-bottom: 1px solid var(--rule-mid);
  background: var(--bg-alt);
  flex-shrink: 0;
}
.bore-id {
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--text);
  white-space: nowrap;
}
.bore-proj {
  font-size: 0.6rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--stone);
  flex: 1;
  text-align: center;
}
.bore-eoh {
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--green);
  text-transform: uppercase;
  white-space: nowrap;
}
.bore-body {
  flex: 1;
  display: grid;
  grid-template-columns: 34px 1fr 96px;
  position: relative;
  min-height: 360px;
}
.bore-scale {
  background: var(--bg-alt);
  border-right: 1px solid var(--rule-mid);
  position: relative;
  overflow: hidden;
}
.bore-scale > span {
  position: absolute;
  right: 7px;
  transform: translateY(-50%);
  font-size: 0.5rem;
  color: var(--stone);
  line-height: 1;
  letter-spacing: 0.02em;
}
.bore-scale > span::after {
  content: '';
  position: absolute;
  right: -8px;
  top: 50%;
  width: 6px;
  height: 1px;
  background: var(--rule-mid);
  transform: translateY(-50%);
}
.bore-scale-unit {
  position: absolute;
  bottom: 6px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 0.45rem;
  color: var(--stone);
  opacity: 0.6;
  letter-spacing: 0.06em;
}
.bore-colors {
  display: flex;
  flex-direction: column;
}
.bl { position: relative; overflow: hidden; }
.bl + .bl { border-top: 1px solid rgba(0,0,0,0.14); }
.bl-topsoil {
  background-color: var(--geo-topsoil);
  background-image: radial-gradient(circle, rgba(0,0,0,0.2) 1px, transparent 1px);
  background-size: 5px 5px;
}
.bl-clay {
  background-color: var(--geo-clay);
  background-image: repeating-linear-gradient(
    0deg, transparent, transparent 5px,
    rgba(0,0,0,0.1) 5px, rgba(0,0,0,0.1) 6px
  );
}
.bl-sclay {
  background-color: var(--geo-sclay);
  background-image: repeating-linear-gradient(
    45deg, transparent, transparent 4px,
    rgba(0,0,0,0.08) 4px, rgba(0,0,0,0.08) 5px
  );
}
.bl-sand {
  background-color: var(--geo-sand);
  background-image:
    radial-gradient(circle, rgba(0,0,0,0.14) 1.5px, transparent 1.5px),
    radial-gradient(circle, rgba(0,0,0,0.08) 1px, transparent 1px);
  background-size: 8px 8px, 4px 4px;
  background-position: 0 0, 4px 4px;
}
.bl-wrock {
  background-color: var(--geo-wrock);
  background-image:
    repeating-linear-gradient(135deg, rgba(255,255,255,0.07) 0, rgba(255,255,255,0.07) 1px, transparent 0, transparent 50%),
    repeating-linear-gradient(45deg,  rgba(255,255,255,0.07) 0, rgba(255,255,255,0.07) 1px, transparent 0, transparent 50%);
  background-size: 9px 9px;
}
.bl-rock {
  background-color: var(--geo-rock);
  background-image:
    repeating-linear-gradient( 45deg, rgba(255,255,255,0.09) 0, rgba(255,255,255,0.09) 1px, transparent 0, transparent 50%),
    repeating-linear-gradient(-45deg, rgba(255,255,255,0.09) 0, rgba(255,255,255,0.09) 1px, transparent 0, transparent 50%);
  background-size: 7px 7px;
}
.bore-labels {
  display: flex;
  flex-direction: column;
  border-left: 1px solid var(--rule);
  background: var(--bg);
}
.bl-row {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 3px 7px;
  border-bottom: 1px solid var(--rule);
  overflow: hidden;
  min-height: 0;
}
.bl-row:last-child { border-bottom: none; }
.bl-name {
  font-size: 0.57rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text);
  line-height: 1.3;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.bl-stat {
  font-size: 0.5rem;
  color: var(--green);
  font-weight: 700;
  letter-spacing: 0.1em;
  margin-top: 1px;
}
.bore-gwt {
  position: absolute;
  left: 34px;
  right: 0;
  height: 0;
  z-index: 4;
  pointer-events: none;
}
.bore-gwt::before {
  content: '▽ GWT';
  position: absolute;
  left: 5px;
  top: -7px;
  font-size: 0.48rem;
  color: #4AA8D4;
  font-weight: 700;
  letter-spacing: 0.06em;
}
.bore-gwt::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 1px;
  background: linear-gradient(90deg, #4AA8D4, rgba(74,168,212,0.25));
}
.bore-drill {
  position: absolute;
  left: 34px;
  right: 96px;
  bottom: 0;
  height: 2px;
  background: var(--green);
  animation: bore-drill-pulse 3s ease-in-out 6s infinite both;
}
@keyframes bore-drill-pulse {
  0%, 20%  { opacity: 0; }
  50%      { opacity: 0.45; }
  80%, 100%{ opacity: 0; }
}
.bore-ft {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-top: 1px solid var(--rule-mid);
  background: var(--bg-alt);
  flex-shrink: 0;
}
.bore-ft-item {
  padding: 0.45rem 0.7rem;
  border-right: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  display: flex;
  flex-direction: column;
  gap: 1px;
}
.bore-ft-item:nth-child(2n)       { border-right: none; }
.bore-ft-item:nth-last-child(-n+2){ border-bottom: none; }
.bore-ft-k {
  font-size: 0.48rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--stone);
}
.bore-ft-v {
  font-size: 0.58rem;
  color: var(--text);
  font-weight: 500;
}
@media (max-width: 1024px) { .hero-bore { display: none; } }

/* ── Borehole drilling reveal animation ──────────────────── */

/* White cover over each geological layer — collapses top-to-bottom */
.bl::after {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--bg);
  transform-origin: bottom;
  animation: bl-reveal var(--rdur, 0.3s) ease-in-out var(--rd, 0s) both;
}

/* Green scan line descends the full bore body simulating the drill advancing */
.bore-body::before {
  content: '';
  position: absolute;
  left: 34px;
  right: 96px;
  top: 0;
  height: 2px;
  background: rgba(77, 148, 22, 0.6);
  z-index: 5;
  pointer-events: none;
  animation: bore-scan 5.41s linear 0.4s both;
}

/* Label rows slide in after their layer is drilled through */
.bl-row {
  opacity: 0;
  animation: bl-fadein 0.45s ease-out var(--bl-d, 0s) both;
}

/* GWT indicator fades in when scan line passes 17% depth */
.bore-gwt {
  opacity: 0;
  animation: gwt-fade 0.4s ease-out 1.26s both;
}

@keyframes bl-reveal {
  from { transform: scaleY(1); }
  to   { transform: scaleY(0); }
}

@keyframes bl-fadein {
  from { opacity: 0; transform: translateX(5px); }
  to   { opacity: 1; transform: none; }
}

@keyframes bore-scan {
  from { top: 0; }
  to   { top: calc(100% - 2px); }
}

@keyframes gwt-fade {
  from { opacity: 0; }
  to   { opacity: 1; }
}

@media (prefers-reduced-motion: reduce) {
  .bl::after                { display: none; }
  .bore-body::before        { display: none; }
  .bl-row                   { opacity: 1 !important; animation: none !important; }
  .bore-gwt                 { opacity: 1 !important; animation: none !important; }
  .bore-drill               { opacity: 0.35; animation: none !important; }
}