:root {
  --forest: #173f35;
  --moss: #6f7d42;
  --bark: #8a5d3b;
  --paper: #f5f1e8;
  --linen: #fbfaf5;
  --ink: #18201c;
  --muted: #687168;
  --line: rgba(24, 32, 28, 0.14);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--linen);
  color: var(--ink);
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

a {
  color: inherit;
  text-decoration: none;
}

.site-header {
  align-items: center;
  background: rgba(251, 250, 245, 0.92);
  border-bottom: 1px solid var(--line);
  display: flex;
  gap: 28px;
  justify-content: space-between;
  left: 0;
  padding: 18px clamp(20px, 4vw, 56px);
  position: sticky;
  right: 0;
  top: 0;
  z-index: 10;
}

.brand,
.site-nav,
.hero-actions {
  align-items: center;
  display: flex;
}

.brand {
  font-weight: 700;
  gap: 10px;
}

.brand-mark {
  background: var(--forest);
  border-radius: 50%;
  color: var(--paper);
  display: grid;
  height: 34px;
  place-items: center;
  width: 34px;
}

.site-nav {
  color: var(--muted);
  gap: 24px;
  font-size: 0.92rem;
  font-weight: 600;
}

.site-nav a:hover,
.header-action:hover {
  color: var(--forest);
}

.header-action {
  border-bottom: 2px solid var(--forest);
  color: var(--forest);
  font-weight: 700;
  padding-bottom: 4px;
}

.hero {
  display: grid;
  grid-template-columns: minmax(540px, 0.9fr) minmax(420px, 1.1fr);
  min-height: 760px;
}

.hero-copy {
  align-self: center;
  max-width: 760px;
  padding: 86px clamp(24px, 5vw, 72px);
}

.eyebrow {
  color: var(--moss);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0;
  margin: 0 0 16px;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1,
h2 {
  font-family: "Source Serif 4", Georgia, serif;
  line-height: 0.98;
}

h1 {
  color: var(--forest);
  font-size: clamp(4rem, 8vw, 8.2rem);
  margin-bottom: 28px;
}

h2 {
  color: var(--forest);
  font-size: clamp(2.25rem, 5vw, 5.25rem);
  margin-bottom: 0;
}

h3 {
  font-size: 1.08rem;
  margin-bottom: 10px;
}

.hero-text,
.intro p,
.section p,
.contact p {
  color: var(--muted);
  font-size: 1.05rem;
  line-height: 1.7;
}

.hero-actions {
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.button {
  border: 1px solid var(--forest);
  border-radius: 4px;
  display: inline-flex;
  font-weight: 800;
  justify-content: center;
  min-width: 158px;
  padding: 14px 20px;
}

.button.primary {
  background: var(--forest);
  color: var(--paper);
}

.button.secondary {
  background: transparent;
  color: var(--forest);
}

.hero-media {
  background:
    linear-gradient(90deg, rgba(251, 250, 245, 0.92) 0%, rgba(251, 250, 245, 0.1) 34%),
    url("assets/hero-pinecones.png") center / cover;
  min-height: 560px;
}

.intro {
  background: var(--forest);
  padding: 68px clamp(24px, 7vw, 96px);
}

.intro p {
  color: var(--paper);
  font-family: "Source Serif 4", Georgia, serif;
  font-size: clamp(1.65rem, 3vw, 3rem);
  line-height: 1.15;
  margin: 0;
  max-width: 1040px;
}

.section {
  padding: 96px clamp(24px, 7vw, 96px);
}

.split {
  display: grid;
  gap: 60px;
  grid-template-columns: minmax(260px, 0.8fr) minmax(0, 1.2fr);
}

.process-grid,
.material-list {
  display: grid;
  gap: 18px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.process-grid article,
.material-list article {
  border-top: 1px solid var(--line);
  padding-top: 24px;
}

.process-grid span {
  color: var(--bark);
  display: block;
  font-weight: 800;
  margin-bottom: 26px;
}

.impact {
  background: var(--paper);
  border-block: 1px solid var(--line);
  display: grid;
  grid-template-columns: repeat(3, 1fr);
}

.stat {
  padding: 56px clamp(24px, 5vw, 74px);
}

.stat + .stat {
  border-left: 1px solid var(--line);
}

.stat strong {
  color: var(--forest);
  display: block;
  font-family: "Source Serif 4", Georgia, serif;
  font-size: clamp(3.5rem, 8vw, 7rem);
  line-height: 0.9;
}

.stat span {
  color: var(--muted);
  display: block;
  font-weight: 700;
  margin-top: 18px;
}

.materials {
  background: var(--linen);
}

.section-heading {
  margin-bottom: 52px;
  max-width: 780px;
}

.material-list article {
  min-height: 160px;
}

.contact {
  background: var(--forest);
  color: var(--paper);
  padding: 92px clamp(24px, 7vw, 96px);
}

.contact .eyebrow,
.contact p {
  color: #c8d3b3;
}

.contact h2 {
  color: var(--paper);
  max-width: 860px;
}

.contact .button {
  border-color: var(--paper);
  margin-top: 34px;
}

.contact .button.primary {
  background: var(--paper);
  color: var(--forest);
}

@media (max-width: 860px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
    gap: 14px;
    position: static;
  }

  .site-nav {
    flex-wrap: wrap;
    gap: 14px;
  }

  .hero,
  .split,
  .process-grid,
  .material-list,
  .impact {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

  .hero-copy {
    padding-top: 56px;
  }

  .hero-media {
    min-height: 380px;
  }

  .stat + .stat {
    border-left: 0;
    border-top: 1px solid var(--line);
  }
}

@media (max-width: 540px) {
  .header-action {
    display: none;
  }

  .button {
    width: 100%;
  }
}