:root {
  --green: #18533f;
  --green-dark: #0e352a;
  --green-soft: #eaf1eb;
  --gold: #c6a15b;
  --rust: #a56036;
  --charcoal: #20282b;
  --ink: #253134;
  --muted: #687678;
  --paper: #f5f2ec;
  --white: #ffffff;
  --line: #d9ded7;
  --shadow: 0 18px 44px rgba(27, 39, 38, 0.14);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.6;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(245, 242, 236, 0.96);
  border-bottom: 1px solid rgba(32, 40, 43, 0.12);
  backdrop-filter: blur(14px);
}

.topbar {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 8px clamp(18px, 5vw, 74px);
  background: var(--green-dark);
  color: rgba(255, 255, 255, 0.86);
  font-size: 14px;
}
.topbar a { color: #e5c17d; }

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 78px;
  padding: 0 clamp(18px, 5vw, 74px);
}
.brand img {
  width: 188px;
  max-height: 54px;
  object-fit: contain;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 24px;
  color: #293435;
  font-size: 15px;
  font-weight: 700;
}
.nav-links a {
  padding: 28px 0;
  border-bottom: 3px solid transparent;
}
.nav-links a:hover,
.nav-links a.active {
  color: var(--green);
  border-bottom-color: var(--gold);
}
.nav-toggle {
  display: none;
  border: 1px solid var(--line);
  background: var(--white);
  color: var(--green-dark);
  padding: 9px 12px;
  font-weight: 700;
}

.hero {
  position: relative;
  min-height: 670px;
  display: grid;
  align-items: end;
  overflow: hidden;
  background: var(--charcoal);
}
.hero-media,
.page-hero {
  background-image:
    linear-gradient(90deg, rgba(10, 28, 24, 0.84), rgba(10, 28, 24, 0.34) 50%, rgba(10, 28, 24, 0.12)),
    url("mine-hero.svg");
  background-size: cover;
  background-position: center;
}
.hero-media {
  position: absolute;
  inset: 0;
  transform: scale(1.02);
}
.hero-copy {
  position: relative;
  max-width: 760px;
  padding: 0 clamp(22px, 7vw, 100px) 96px;
  color: var(--white);
}
.eyebrow,
.section-label {
  margin: 0 0 12px;
  color: var(--gold);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}
h1, h2, h3, p { margin-top: 0; }
h1 {
  margin-bottom: 20px;
  max-width: 820px;
  font-size: clamp(42px, 7vw, 76px);
  line-height: 0.98;
  letter-spacing: 0;
}
h2 {
  margin-bottom: 16px;
  font-size: clamp(28px, 4vw, 46px);
  line-height: 1.08;
  letter-spacing: 0;
  color: var(--green-dark);
}
h3 {
  margin-bottom: 10px;
  font-size: 21px;
  color: var(--green-dark);
}
.hero p {
  max-width: 650px;
  color: rgba(255, 255, 255, 0.88);
  font-size: 19px;
}
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 28px; }
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 12px 20px;
  background: var(--gold);
  color: #17221f;
  font-weight: 800;
}
.button.secondary {
  background: rgba(255, 255, 255, 0.12);
  color: var(--white);
  border: 1px solid rgba(255, 255, 255, 0.42);
}

.section { padding: 82px clamp(22px, 7vw, 100px); }
.intro {
  display: grid;
  grid-template-columns: minmax(240px, 0.9fr) minmax(280px, 1.15fr);
  gap: clamp(28px, 6vw, 80px);
  align-items: start;
  background: var(--white);
}
.intro > p { font-size: 19px; color: var(--muted); }

.image-grid,
.cards,
.people-grid,
.product-groups,
.contact-grid,
.two-column {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}
.image-grid article,
.cards article,
.people-grid article,
.product-groups article,
.contact-grid article,
.two-column article {
  background: var(--white);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}
.image-grid article,
.cards article,
.people-grid article,
.product-groups article,
.contact-grid article,
.two-column article {
  padding: 28px;
}
.image-grid article { padding: 0 0 26px; overflow: hidden; }
.image-grid h3,
.image-grid p { padding: 0 26px; }
.tile-img {
  min-height: 230px;
  margin-bottom: 24px;
  background-size: cover;
  background-position: center;
}
.tile-img.mine { background-image: url("mine-hero.svg"); }
.tile-img.plant { background-image: url("processing.svg"); }
.tile-img.logistics { background-image: url("logistics.svg"); }

.stats-band {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  background: var(--green);
  color: var(--white);
}
.stats-band div {
  padding: 42px clamp(18px, 4vw, 48px);
  border-right: 1px solid rgba(255, 255, 255, 0.18);
}
.stats-band strong {
  display: block;
  color: var(--gold);
  font-size: clamp(32px, 5vw, 54px);
  line-height: 1;
}
.stats-band span {
  display: block;
  margin-top: 10px;
  color: rgba(255, 255, 255, 0.82);
  font-weight: 700;
}

.split {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 36px;
  align-items: stretch;
}
.split-copy { padding: 24px 0; }
.split-copy p { max-width: 700px; color: var(--muted); font-size: 18px; }
.green-panel {
  background: var(--green-dark);
  color: var(--white);
  padding: clamp(32px, 5vw, 58px);
  box-shadow: var(--shadow);
}
.green-panel h3 { color: var(--gold); }
.green-panel strong {
  display: block;
  margin: 10px 0 16px;
  font-size: clamp(36px, 5vw, 58px);
  line-height: 1;
}
.green-panel p,
.green-panel li { color: rgba(255,255,255,.84); }
.text-link {
  display: inline-block;
  color: var(--green);
  font-weight: 800;
  border-bottom: 2px solid var(--gold);
}

.section-head { margin-bottom: 30px; }
.cards article p,
.people-grid article p,
.product-groups article p,
.contact-grid article p,
.two-column article p {
  color: var(--muted);
}

.page-hero {
  min-height: 430px;
  padding: 170px clamp(22px, 7vw, 100px) 72px;
  color: var(--white);
}
.page-hero h1 { max-width: 900px; }
.about-hero { background-image: linear-gradient(90deg, rgba(10, 28, 24, 0.86), rgba(10, 28, 24, 0.25)), url("processing.svg"); }
.operations-hero { background-image: linear-gradient(90deg, rgba(10, 28, 24, 0.86), rgba(10, 28, 24, 0.22)), url("mine-hero.svg"); }
.sustainability-hero { background-image: linear-gradient(90deg, rgba(10, 28, 24, 0.86), rgba(10, 28, 24, 0.16)), url("sustainability.svg"); }
.leadership-hero { background-image: linear-gradient(90deg, rgba(10, 28, 24, 0.86), rgba(10, 28, 24, 0.2)), url("logistics.svg"); }
.products-hero { background-image: linear-gradient(90deg, rgba(10, 28, 24, 0.86), rgba(10, 28, 24, 0.18)), url("processing.svg"); }
.contact-hero,
.spv-hero { background-image: linear-gradient(90deg, rgba(10, 28, 24, 0.86), rgba(10, 28, 24, 0.18)), url("sustainability.svg"); }

.facts {
  background: var(--green-soft);
}
.facts dl {
  display: grid;
  grid-template-columns: 230px 1fr;
  max-width: 860px;
  margin: 0;
  background: var(--white);
  border: 1px solid var(--line);
}
.facts dt,
.facts dd {
  margin: 0;
  padding: 16px 20px;
  border-bottom: 1px solid var(--line);
}
.facts dt { font-weight: 800; color: var(--green-dark); }
.facts dd { color: var(--muted); }
.value-list {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.value-list span {
  padding: 12px 16px;
  background: var(--white);
  border: 1px solid var(--line);
  color: var(--green-dark);
  font-weight: 800;
}
.people-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.people-grid span {
  display: block;
  margin-bottom: 12px;
  color: var(--rust);
  font-weight: 800;
}
.product-groups article {
  min-height: 220px;
  border-top: 5px solid var(--gold);
}
.contact-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.footer {
  background: #151d1f;
  color: rgba(255,255,255,.78);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr .8fr 1fr 1fr;
  gap: 34px;
  padding: 62px clamp(22px, 7vw, 100px);
}
.footer-logo {
  width: 190px;
  max-height: 58px;
  object-fit: contain;
  margin-bottom: 18px;
}
.footer h3 {
  color: var(--white);
  font-size: 15px;
  text-transform: uppercase;
}
.footer a {
  display: block;
  margin-bottom: 9px;
  color: rgba(255,255,255,.82);
}
.footer a:hover { color: var(--gold); }
.copyright {
  padding: 18px clamp(22px, 7vw, 100px);
  border-top: 1px solid rgba(255,255,255,.12);
  color: rgba(255,255,255,.56);
  font-size: 13px;
  text-transform: uppercase;
}

@media (max-width: 980px) {
  .nav { min-height: 68px; }
  .nav-toggle { display: inline-flex; }
  .nav-links {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 12px 22px 22px;
    background: var(--paper);
    border-bottom: 1px solid var(--line);
  }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 13px 0; }
  .intro,
  .split,
  .footer-grid,
  .contact-grid,
  .two-column { grid-template-columns: 1fr; }
  .image-grid,
  .cards,
  .people-grid,
  .product-groups { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .stats-band { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
  .topbar { flex-direction: column; gap: 4px; }
  .brand img { width: 150px; }
  .hero { min-height: 590px; }
  .hero-copy { padding-bottom: 56px; }
  .section { padding-top: 58px; padding-bottom: 58px; }
  .image-grid,
  .cards,
  .people-grid,
  .product-groups { grid-template-columns: 1fr; }
  .stats-band { grid-template-columns: 1fr; }
  .facts dl { grid-template-columns: 1fr; }
  .facts dt { border-bottom: 0; padding-bottom: 4px; }
  .facts dd { padding-top: 0; }
}