:root {
  --charcoal: #151413;
  --charcoal-soft: #1c1b19;
  --ink: #f4f5f1;
  --muted: #b7bdb4;
  --quiet: #858c86;
  --line: rgba(244, 245, 241, 0.13);
  --green: #58b96c;
  --deep-green: #0e613d;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

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

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

a {
  color: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  min-height: 92px;
  padding: 14px clamp(20px, 5vw, 72px);
  border-bottom: 1px solid var(--line);
  background: rgba(21, 20, 19, 0.92);
  backdrop-filter: blur(18px);
}

.brand img {
  width: auto;
  height: clamp(72px, 8vw, 96px);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: clamp(20px, 3vw, 42px);
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.nav-links a {
  text-decoration: none;
}

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

.hero {
  position: relative;
  display: grid;
  align-items: end;
  min-height: calc(100vh - 92px);
  overflow: hidden;
  border-bottom: 1px solid var(--line);
}

.hero-visual {
  position: absolute;
  inset: 0;
  margin: 0;
}

.hero-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.8) contrast(1.05) brightness(0.68);
}

.hero-visual::after {
  position: absolute;
  inset: 0;
  content: "";
  background:
    linear-gradient(90deg, rgba(21, 20, 19, 0.94), rgba(21, 20, 19, 0.68) 42%, rgba(21, 20, 19, 0.18)),
    linear-gradient(0deg, rgba(21, 20, 19, 0.75), rgba(21, 20, 19, 0.12) 42%);
}

.hero-copy-block {
  position: relative;
  z-index: 1;
  max-width: 920px;
  padding: clamp(80px, 12vw, 150px) clamp(20px, 7vw, 104px);
}

.eyebrow {
  margin: 0 0 18px;
  color: var(--green);
  font-size: 0.78rem;
  font-weight: 850;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

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

h1 {
  max-width: 860px;
  margin-bottom: 28px;
  font-size: clamp(4.1rem, 9vw, 9.2rem);
  font-weight: 760;
  line-height: 0.9;
}

.lead {
  max-width: 680px;
  margin-bottom: 0;
  color: var(--muted);
  font-size: clamp(1.08rem, 1.5vw, 1.36rem);
  line-height: 1.72;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 38px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 26px;
  border: 1px solid rgba(244, 245, 241, 0.24);
  color: var(--ink);
  font-weight: 800;
  text-decoration: none;
}

.btn-solid {
  border-color: var(--deep-green);
  background: var(--deep-green);
}

.section {
  scroll-margin-top: 120px;
  padding: clamp(72px, 9vw, 126px) clamp(20px, 5vw, 72px);
  border-bottom: 1px solid var(--line);
}

.section-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, 0.78fr);
  gap: clamp(34px, 7vw, 92px);
  max-width: 1220px;
  margin: 0 auto clamp(38px, 6vw, 72px);
}

.section-head h2 {
  max-width: 760px;
  margin: 0;
  font-size: clamp(2.35rem, 5vw, 5rem);
  font-weight: 720;
  line-height: 1;
}

.about-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 420px);
  gap: clamp(28px, 5vw, 64px);
  max-width: 1220px;
  margin: 0 auto;
}

.about-copy {
  max-width: 780px;
  color: rgba(244, 245, 241, 0.78);
  font-size: 1.08rem;
  line-height: 1.85;
}

.about-note {
  align-self: start;
  padding: 28px;
  border-left: 3px solid var(--green);
  background: linear-gradient(90deg, rgba(88, 185, 108, 0.08), rgba(255, 255, 255, 0.015));
}

.about-note p {
  margin: 0;
  color: var(--muted);
  font-size: 1.04rem;
  line-height: 1.75;
}

.capability-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
  max-width: 1220px;
  margin: 0 auto 22px;
}

.capability-grid article {
  position: relative;
  min-height: 460px;
  overflow: hidden;
  border: 1px solid var(--line);
}

.capability-grid img {
  width: 100%;
  height: 100%;
  min-height: 460px;
  object-fit: cover;
  filter: grayscale(0.35) saturate(0.72) brightness(0.68) contrast(1.08);
}

.capability-grid article::after {
  position: absolute;
  inset: 0;
  content: "";
  background: linear-gradient(180deg, rgba(21, 20, 19, 0.08), rgba(21, 20, 19, 0.82));
}

.capability-grid article > div {
  position: absolute;
  inset: auto 0 0;
  z-index: 1;
  padding: 30px;
}

.capability-grid h3 {
  margin-bottom: 12px;
  font-size: clamp(1.6rem, 2.8vw, 2.8rem);
  line-height: 1.05;
}

.capability-grid p {
  max-width: 520px;
  margin-bottom: 0;
  color: var(--muted);
  line-height: 1.65;
}

.capability-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  max-width: 1220px;
  margin: 0 auto;
  padding: 0;
  border: 1px solid var(--line);
  background: var(--line);
  list-style: none;
}

.capability-list li {
  min-height: 190px;
  padding: 28px;
  background: var(--charcoal-soft);
}

.capability-list strong {
  display: block;
  margin-bottom: 12px;
  color: var(--ink);
  font-size: 1.28rem;
}

.capability-list span {
  color: var(--muted);
  line-height: 1.6;
}

.image-band {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-bottom: 1px solid var(--line);
}

.image-band article {
  position: relative;
  min-height: 410px;
  overflow: hidden;
  border-right: 1px solid var(--line);
}

.image-band article:last-child {
  border-right: 0;
}

.image-band img {
  width: 100%;
  height: 100%;
  min-height: 410px;
  object-fit: cover;
  filter: grayscale(0.42) saturate(0.7) brightness(0.66) contrast(1.1);
}

.image-band article::after {
  position: absolute;
  inset: 0;
  content: "";
  background: linear-gradient(180deg, rgba(21, 20, 19, 0.05), rgba(21, 20, 19, 0.82));
}

.image-band div {
  position: absolute;
  inset: auto 0 0;
  z-index: 1;
  padding: 28px;
}

.image-band span {
  color: var(--green);
  font-weight: 850;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.image-band p {
  max-width: 360px;
  margin: 12px 0 0;
  color: rgba(244, 245, 241, 0.82);
  line-height: 1.55;
}

.standards-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
  max-width: 1220px;
  margin: 0 auto;
}

.standards-grid div {
  padding: 30px;
  border-top: 1px solid var(--green);
  background: rgba(255, 255, 255, 0.025);
}

.standards-grid h3 {
  margin-bottom: 14px;
  font-size: 1.45rem;
}

.standards-grid p {
  margin-bottom: 0;
  color: var(--muted);
  line-height: 1.65;
}

.sustainability-copy {
  display: grid;
  grid-template-columns: minmax(0, 0.86fr) minmax(0, 1fr);
  gap: clamp(24px, 5vw, 72px);
  max-width: 1220px;
  margin: 0 auto;
  padding-top: 34px;
  border-top: 1px solid var(--line);
}

.sustainability-copy p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 1.08rem;
  line-height: 1.8;
}

.contact {
  padding-top: clamp(86px, 12vw, 160px);
  padding-bottom: clamp(86px, 12vw, 160px);
}

.contact-card {
  max-width: 980px;
  margin: 0 auto;
}

.contact-card h2 {
  max-width: 760px;
  margin: 0 0 24px;
  font-size: clamp(3rem, 6vw, 6rem);
  line-height: 0.95;
}

.contact-email {
  display: inline-block;
  margin-bottom: 34px;
  color: var(--green);
  font-size: clamp(1.35rem, 2.4vw, 2rem);
  font-weight: 850;
  text-decoration: none;
}

.contact-email:hover {
  color: var(--ink);
}

.contact-address {
  color: var(--muted);
  font-size: clamp(1.08rem, 1.6vw, 1.34rem);
  font-style: normal;
  line-height: 1.7;
}

.footer {
  padding: 28px clamp(20px, 5vw, 72px);
  color: var(--quiet);
  font-size: 0.82rem;
  font-weight: 750;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

@media (max-width: 980px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .nav-links {
    flex-wrap: wrap;
  }

  .section-head,
  .about-grid,
  .capability-grid {
    grid-template-columns: 1fr;
  }

  .capability-list,
  .image-band,
  .standards-grid,
  .sustainability-copy {
    grid-template-columns: 1fr;
  }

  .image-band article {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }
}

@media (max-width: 680px) {
  .site-header {
    position: static;
    gap: 12px;
    min-height: 0;
    padding: 10px 20px 12px;
  }

  .brand img {
    height: 60px;
  }

  .nav-links {
    width: 100%;
    gap: 18px;
    flex-wrap: wrap;
    overflow-x: visible;
    padding-bottom: 2px;
    font-size: 0.72rem;
    white-space: nowrap;
    scrollbar-width: none;
  }

  .nav-links::-webkit-scrollbar {
    display: none;
  }

  h1 {
    font-size: clamp(2.9rem, 12vw, 4.25rem);
  }

  .hero-copy-block {
    padding: 64px 20px;
  }

  .section {
    scroll-margin-top: 24px;
    padding: 64px 20px;
  }

  .section-head h2,
  .contact-card h2 {
    font-size: clamp(2.35rem, 10vw, 3.6rem);
  }

  .capability-grid article,
  .capability-grid img,
  .image-band article,
  .image-band img {
    min-height: 340px;
  }

  .hero-actions {
    gap: 10px;
  }

  .btn {
    flex: 1 1 140px;
  }

  .hero-visual::after {
    background: linear-gradient(90deg, rgba(21, 20, 19, 0.96), rgba(21, 20, 19, 0.72));
  }
}