:root {
  --ink: #1d2523;
  --muted: #5e6b66;
  --line: #dce5df;
  --paper: #f7faf7;
  --white: #ffffff;
  --forest: #1f6b4f;
  --forest-dark: #174a39;
  --copper: #b86635;
  --sky: #d8ebf0;
  --shadow: 0 18px 50px rgba(30, 47, 41, 0.13);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.55;
}

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

img {
  display: block;
  max-width: 100%;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  gap: 28px;
  min-height: 76px;
  padding: 14px clamp(18px, 5vw, 72px);
  background: rgba(247, 250, 247, 0.92);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(16px);
}

.brand img {
  width: 190px;
  height: auto;
}

.nav {
  display: flex;
  gap: 24px;
  margin-left: auto;
  font-size: 0.94rem;
  font-weight: 700;
  color: var(--muted);
}

.nav a:hover {
  color: var(--forest);
}

.header-action,
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 18px;
  border-radius: 6px;
  font-weight: 700;
}

.header-action,
.button.primary {
  color: var(--white);
  background: var(--forest);
}

.header-action:hover,
.button.primary:hover {
  background: var(--forest-dark);
}

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

.hero {
  display: grid;
  grid-template-columns: minmax(280px, 0.9fr) minmax(320px, 1.1fr);
  align-items: center;
  gap: clamp(28px, 6vw, 84px);
  min-height: calc(88vh - 76px);
  padding: clamp(34px, 7vw, 92px) clamp(18px, 5vw, 72px);
  background: linear-gradient(115deg, rgba(31, 107, 79, 0.08), rgba(216, 235, 240, 0.7)), var(--paper);
}

.hero-media {
  display: grid;
  place-items: center;
  min-height: 420px;
  border-right: 1px solid rgba(31, 107, 79, 0.18);
}

.hero-content {
  max-width: 760px;
}

.hero-photo {
  width: min(560px, 100%);
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.eyebrow,
.section-kicker {
  display: block;
  margin: 0 0 12px;
  color: var(--copper);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

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

h1 {
  max-width: 820px;
  margin-bottom: 22px;
  font-size: clamp(1.75rem, 3vw, 2.65rem);
  line-height: 1.13;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 16px;
  font-size: clamp(1.35rem, 2.35vw, 2rem);
  line-height: 1.16;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 10px;
  font-size: 1.28rem;
}

.lead {
  max-width: 660px;
  color: var(--muted);
  font-size: clamp(1.05rem, 2vw, 1.28rem);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

.intro,
.services,
.method,
.sustainability,
.feature,
.footer {
  padding: clamp(56px, 8vw, 108px) clamp(18px, 5vw, 72px);
  scroll-margin-top: 88px;
}

.intro {
  display: grid;
  grid-template-columns: minmax(260px, 0.95fr) minmax(280px, 1.05fr);
  gap: clamp(28px, 5vw, 72px);
  background: var(--white);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.intro p,
.method-text p,
.feature-copy p {
  color: var(--muted);
  font-size: 1.12rem;
}

.section-heading {
  max-width: 760px;
  margin-bottom: 34px;
  text-align: left;
}

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

.service-card {
  min-height: 360px;
  padding: 28px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.service-card img {
  width: 100%;
  height: 170px;
  object-fit: cover;
  margin-bottom: 24px;
  border-radius: 6px;
}

.service-card p {
  color: var(--muted);
}

.service-card span {
  display: inline-flex;
  margin-top: 8px;
  color: var(--forest);
  font-weight: 800;
}

.service-card:hover {
  transform: translateY(-3px);
  border-color: #b9d3c4;
}

.method {
  display: grid;
  grid-template-columns: minmax(280px, 0.85fr) minmax(320px, 1.15fr);
  gap: clamp(28px, 5vw, 72px);
  background: #edf5ef;
}

.steps {
  display: grid;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: step;
}

.steps li {
  position: relative;
  padding: 24px 24px 24px 78px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.steps li::before {
  position: absolute;
  left: 22px;
  top: 22px;
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  color: var(--white);
  background: var(--forest);
  border-radius: 50%;
  counter-increment: step;
  content: counter(step);
  font-weight: 800;
}

.steps strong,
.steps span {
  display: block;
}

.steps span {
  color: var(--muted);
}

.sustainability {
  display: grid;
  grid-template-columns: minmax(260px, 0.75fr) minmax(320px, 1.25fr);
  gap: clamp(28px, 5vw, 72px);
  background: var(--white);
}

.principles {
  display: flex;
  flex-wrap: wrap;
  align-content: start;
  gap: 10px;
}

.principles span {
  padding: 10px 14px;
  color: var(--forest-dark);
  background: #edf5ef;
  border: 1px solid #cfe1d6;
  border-radius: 999px;
  font-weight: 700;
}

.mission-values {
  display: grid;
  grid-template-columns: minmax(280px, 0.9fr) minmax(320px, 1.1fr);
  gap: 18px;
  padding: clamp(56px, 8vw, 108px) clamp(18px, 5vw, 72px);
  background: #edf5ef;
}

.mission-card {
  padding-left: 0;
  background: transparent;
  border: 0;
  box-shadow: none;
}

.values-card {
  padding: 32px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.mission-card h2 {
  font-size: clamp(1.35rem, 2.25vw, 1.85rem);
}

.mission-card p {
  color: var(--muted);
  font-size: 1.1rem;
}

.principles.compact {
  gap: 9px;
}

.principles.compact span {
  font-size: 0.95rem;
}

.feature {
  display: grid;
  grid-template-columns: minmax(280px, 0.9fr) minmax(320px, 1.1fr);
  gap: clamp(28px, 5vw, 72px);
  align-items: center;
  background: #f1f0ea;
}

.feature-copy {
  max-width: 660px;
}

.feature-images {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 18px;
  align-items: center;
}

.feature-images img {
  width: 100%;
  max-height: 260px;
  object-fit: contain;
  padding: 18px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.presentation-band,
.service-hero,
.content-split,
.visual-section,
.phase-grid {
  padding: clamp(56px, 8vw, 108px) clamp(18px, 5vw, 72px);
}

.presentation-band {
  display: grid;
  grid-template-columns: minmax(280px, 0.7fr) minmax(320px, 1.3fr);
  gap: clamp(28px, 5vw, 72px);
  align-items: center;
  background: var(--white);
}

.presentation-copy p,
.text-stack p {
  color: var(--muted);
  font-size: 1.1rem;
}

.presentation-band img,
.visual-section img,
.service-hero > img {
  width: min(100%, 980px);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.large-diagram {
  overflow-x: auto;
  max-width: 1040px;
  margin: 0 auto;
  padding-bottom: 8px;
}

.large-diagram img {
  width: 100%;
  min-width: 820px;
}

.service-hero {
  display: grid;
  grid-template-columns: minmax(320px, 0.9fr) minmax(320px, 1.1fr);
  gap: clamp(28px, 5vw, 72px);
  align-items: center;
  min-height: calc(78vh - 76px);
  background: linear-gradient(115deg, rgba(31, 107, 79, 0.08), rgba(216, 235, 240, 0.62)), var(--paper);
}

.service-hero h1 {
  font-size: clamp(1.65rem, 2.7vw, 2.35rem);
  line-height: 1.14;
}

.service-visual-card {
  overflow: hidden;
  padding: 0;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.service-visual-card img {
  width: 100%;
  height: 220px;
  object-fit: cover;
}

.service-visual-card span,
.service-visual-card strong,
.service-visual-card p {
  display: block;
}

.service-visual-card span {
  margin: 28px clamp(24px, 4vw, 42px) 12px;
  color: var(--copper);
  font-size: 0.78rem;
  font-weight: 800;
  text-transform: uppercase;
}

.service-visual-card strong {
  max-width: 520px;
  margin: 0 clamp(24px, 4vw, 42px);
  color: var(--forest-dark);
  font-size: clamp(1.45rem, 2.75vw, 2.15rem);
  line-height: 1.1;
}

.service-visual-card p {
  max-width: 560px;
  margin: 18px clamp(24px, 4vw, 42px) clamp(28px, 4vw, 42px);
  color: var(--muted);
  font-size: 1.08rem;
}

.content-split {
  display: grid;
  grid-template-columns: minmax(280px, 0.8fr) minmax(320px, 1.2fr);
  gap: clamp(28px, 5vw, 72px);
  background: var(--white);
}

.text-stack {
  display: grid;
  gap: 12px;
}

.visual-section {
  background: var(--paper);
}

.visual-section.muted {
  background: #edf5ef;
}

.phase-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 14px;
  background: var(--white);
}

.phase-grid article {
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfdfb;
}

.phase-grid strong,
.phase-grid span {
  display: block;
}

.phase-grid strong {
  margin-bottom: 10px;
  color: var(--forest);
}

.phase-grid span {
  color: var(--muted);
}

.footer {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
  place-items: center;
  color: var(--ink);
  background: #edf5ef;
  text-align: center;
}

.footer .section-kicker {
  color: var(--copper);
}

.footer h2 {
  margin-bottom: 0;
  font-size: clamp(1.45rem, 2.8vw, 2.2rem);
}

address {
  display: grid;
  gap: 12px;
  align-content: center;
  width: min(560px, 100%);
  padding: 24px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
  font-style: normal;
}

address a {
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
  font-weight: 700;
}

address a:last-child {
  border-bottom: 0;
}

.product-hero {
  display: grid;
  grid-template-columns: minmax(320px, 0.95fr) minmax(320px, 1.05fr);
  align-items: center;
  gap: clamp(28px, 6vw, 84px);
  min-height: calc(92vh - 76px);
  padding: clamp(42px, 8vw, 108px) clamp(18px, 5vw, 72px);
  background: linear-gradient(115deg, rgba(184, 102, 53, 0.1), rgba(216, 235, 240, 0.78)), var(--paper);
}

.product-copy {
  max-width: 700px;
}

.product-media {
  display: grid;
  place-items: center;
}

.product-media img {
  width: min(560px, 100%);
  padding: 28px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.product-summary {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  padding: clamp(56px, 8vw, 108px) clamp(18px, 5vw, 72px);
  background: var(--white);
}

.product-summary article {
  padding: 32px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfdfb;
}

.product-summary p,
.spec-list {
  color: var(--muted);
  font-size: 1.08rem;
}

.product-gallery {
  padding: clamp(56px, 8vw, 108px) clamp(18px, 5vw, 72px);
}

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

.gallery-grid figure {
  margin: 0;
  padding: 18px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.gallery-grid img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: contain;
}

.gallery-grid figcaption {
  margin-top: 14px;
  color: var(--ink);
  font-weight: 700;
}

.specs-band {
  display: grid;
  grid-template-columns: minmax(280px, 0.9fr) minmax(320px, 1.1fr);
  gap: clamp(28px, 5vw, 72px);
  padding: clamp(56px, 8vw, 108px) clamp(18px, 5vw, 72px);
  background: #edf5ef;
}

.spec-list {
  display: grid;
  gap: 12px;
  margin: 0;
  padding-left: 20px;
}

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

  .nav {
    order: 3;
    width: 100%;
    margin-left: 0;
    overflow-x: auto;
    padding-bottom: 4px;
  }

  .header-action {
    margin-left: auto;
  }

  .hero,
  .intro,
  .method,
  .sustainability,
  .feature,
  .footer,
  .product-hero,
  .product-summary,
  .specs-band,
  .mission-values,
  .presentation-band,
  .service-hero,
  .content-split {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

  .hero-media {
    min-height: 260px;
    border-right: 0;
    border-bottom: 1px solid rgba(31, 107, 79, 0.18);
  }

  .service-grid,
  .feature-images,
  .gallery-grid,
  .phase-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 520px) {
  .brand img {
    width: 150px;
  }

  .header-action,
  .button {
    width: 100%;
  }

  .hero-actions {
    width: 100%;
  }

  .service-card,
  .steps li {
    padding: 22px;
  }

  .steps li {
    padding-left: 22px;
    padding-top: 74px;
  }
}