:root {
  --bg: #f4f6f3;
  --ink: #1b2520;
  --muted: #64706a;
  --line: #d8ded7;
  --surface: #ffffff;
  --surface-soft: #edf3ec;
  --green: #1f6f4a;
  --green-dark: #164d35;
  --copper: #b56b33;
  --steel: #2f5262;
  --gold: #d7a84d;
  --shadow: 0 20px 60px rgba(30, 45, 38, 0.13);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

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

body.nav-open {
  overflow: hidden;
}

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

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

button,
input,
select,
textarea {
  font: inherit;
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 20;
  width: 100%;
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 14px clamp(18px, 5vw, 72px);
  color: #fff;
  transition: background 180ms ease, box-shadow 180ms ease, color 180ms ease;
}

.site-header.scrolled,
.site-header.nav-active {
  color: var(--ink);
  background: rgba(255, 255, 255, 0.94);
  box-shadow: 0 8px 30px rgba(20, 35, 28, 0.11);
  backdrop-filter: blur(18px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.brand-mark {
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  border: 1px solid rgba(255, 255, 255, 0.45);
  border-radius: 8px;
  background: rgba(31, 111, 74, 0.92);
  color: #fff;
  font-weight: 800;
}

.brand strong,
.brand small {
  display: block;
  overflow-wrap: anywhere;
}

.brand strong {
  font-size: 18px;
  line-height: 1.15;
}

.brand small {
  margin-top: 3px;
  color: currentColor;
  opacity: 0.72;
  font-size: 12px;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 24px;
  font-size: 14px;
  font-weight: 700;
}

.site-nav a {
  padding: 8px 0;
  border-bottom: 2px solid transparent;
}

.site-nav a:hover {
  border-color: currentColor;
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid rgba(255, 255, 255, 0.45);
  border-radius: 8px;
  background: rgba(0, 0, 0, 0.18);
  padding: 11px;
}

.site-header.scrolled .nav-toggle,
.site-header.nav-active .nav-toggle {
  border-color: var(--line);
  background: var(--surface);
}

.nav-toggle span {
  display: block;
  height: 2px;
  margin: 5px 0;
  background: currentColor;
}

.hero {
  position: relative;
  min-height: 92vh;
  display: grid;
  align-items: end;
  padding: 140px clamp(18px, 5vw, 72px) 34px;
  color: #fff;
  overflow: hidden;
}

.hero-media,
.hero-shade {
  position: absolute;
  inset: 0;
}

.hero-media {
  background-image: url("https://images.unsplash.com/photo-1600607688969-a5bfcd646154?auto=format&fit=crop&w=1800&q=85");
  background-position: center;
  background-size: cover;
  transform: scale(1.02);
}

.hero-shade {
  background:
    linear-gradient(90deg, rgba(12, 25, 20, 0.86) 0%, rgba(12, 25, 20, 0.62) 46%, rgba(12, 25, 20, 0.18) 100%),
    linear-gradient(0deg, rgba(12, 25, 20, 0.48) 0%, rgba(12, 25, 20, 0) 52%);
}

.hero-content {
  position: relative;
  z-index: 1;
  width: min(760px, 100%);
  padding-bottom: 96px;
}

.eyebrow,
.section-heading span,
.performance-copy span,
.contact-copy span {
  margin: 0 0 14px;
  color: var(--gold);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

.hero h1 {
  margin: 0;
  max-width: 760px;
  font-size: clamp(42px, 8vw, 84px);
  line-height: 0.98;
}

.slogan {
  margin: 18px 0 0;
  color: #f3d487;
  font-size: clamp(20px, 2.8vw, 31px);
  font-weight: 800;
  line-height: 1.2;
}

.hero-copy {
  max-width: 680px;
  margin: 18px 0 0;
  color: rgba(255, 255, 255, 0.9);
  font-size: clamp(18px, 2.2vw, 24px);
  line-height: 1.42;
}

.hero-actions,
.contact-methods {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.primary-link,
.secondary-link,
.primary-button {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  border: 1px solid transparent;
  padding: 13px 18px;
  font-weight: 800;
}

.primary-link,
.primary-button {
  color: #fff;
  background: var(--green);
  border-color: var(--green);
}

.primary-link:hover,
.primary-button:hover {
  background: var(--green-dark);
}

.secondary-link {
  color: #fff;
  border-color: rgba(255, 255, 255, 0.48);
  background: rgba(255, 255, 255, 0.12);
}

.secondary-link:hover {
  background: rgba(255, 255, 255, 0.2);
}

.hero-stats {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  width: min(880px, 100%);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(18px);
}

.hero-stats div {
  padding: 18px;
  border-right: 1px solid rgba(255, 255, 255, 0.2);
}

.hero-stats div:last-child {
  border-right: 0;
}

.hero-stats strong,
.hero-stats span {
  display: block;
}

.hero-stats strong {
  font-size: 24px;
}

.hero-stats span {
  margin-top: 4px;
  color: rgba(255, 255, 255, 0.78);
  font-size: 13px;
}

.section {
  padding: 86px clamp(18px, 5vw, 72px);
}

.intro-section {
  display: grid;
  grid-template-columns: minmax(280px, 0.9fr) minmax(300px, 1.1fr);
  gap: clamp(28px, 6vw, 96px);
  align-items: start;
  background: var(--surface);
}

.section-heading {
  max-width: 720px;
}

.section-heading h2,
.performance-copy h2,
.contact-copy h2 {
  margin: 0;
  font-size: clamp(30px, 4.2vw, 54px);
  line-height: 1.05;
}

.intro-section p,
.performance-copy p,
.contact-copy p {
  margin: 0;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.72;
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 18px;
  margin-top: 34px;
}

.product-card {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: 0 14px 40px rgba(30, 45, 38, 0.08);
}

.product-card img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.product-card div {
  padding: 20px;
}

.product-card h3,
.process-grid h3 {
  margin: 0;
  font-size: 20px;
  line-height: 1.25;
}

.product-card p,
.process-grid p,
.performance-list span {
  margin: 10px 0 0;
  color: var(--muted);
  line-height: 1.58;
}

.catalog-panel {
  margin-top: 28px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: 0 14px 40px rgba(30, 45, 38, 0.08);
  overflow: hidden;
}

.catalog-intro {
  display: grid;
  grid-template-columns: minmax(240px, 0.8fr) minmax(280px, 1.2fr);
  gap: 20px;
  padding: 24px;
  background: var(--surface-soft);
  border-bottom: 1px solid var(--line);
}

.catalog-intro h3,
.catalog-group h4 {
  margin: 0;
}

.catalog-intro h3 {
  font-size: 24px;
  line-height: 1.2;
}

.catalog-intro p {
  margin: 0;
  color: var(--muted);
  line-height: 1.62;
}

.catalog-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.catalog-group {
  min-height: 236px;
  padding: 22px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.catalog-group:nth-child(3n) {
  border-right: 0;
}

.catalog-group:nth-last-child(-n + 3) {
  border-bottom: 0;
}

.catalog-group h4 {
  color: var(--green-dark);
  font-size: 17px;
}

.catalog-group ul {
  display: grid;
  gap: 9px;
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
}

.catalog-group li {
  position: relative;
  padding-left: 18px;
  color: var(--muted);
  line-height: 1.38;
}

.catalog-group li::before {
  position: absolute;
  top: 0.62em;
  left: 0;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--copper);
  content: "";
}

.catalog-note {
  background: #fbf8f1;
}

.detail-showcase {
  display: grid;
  grid-template-columns: minmax(300px, 0.86fr) minmax(320px, 1.14fr);
  gap: 0;
  margin-top: 28px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: 0 14px 40px rgba(30, 45, 38, 0.08);
  overflow: hidden;
}

.detail-media img {
  width: 100%;
  height: 100%;
  min-height: 520px;
  object-fit: cover;
}

.detail-copy {
  padding: clamp(24px, 4vw, 38px);
}

.detail-copy > span {
  display: block;
  margin-bottom: 12px;
  color: var(--copper);
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
}

.detail-copy h3 {
  margin: 0;
  font-size: clamp(26px, 3.4vw, 42px);
  line-height: 1.08;
}

.detail-copy p {
  margin: 16px 0 0;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.66;
}

.detail-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 24px;
}

.detail-grid div {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 16px;
  background: #fbfcfa;
}

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

.detail-grid strong {
  color: var(--green-dark);
  font-size: 15px;
}

.detail-grid span {
  margin-top: 7px;
  color: var(--muted);
  line-height: 1.48;
}

.spec-table-wrap {
  margin-top: 28px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: 0 14px 40px rgba(30, 45, 38, 0.08);
  overflow-x: auto;
}

.spec-table {
  width: 100%;
  min-width: 880px;
  border-collapse: collapse;
}

.spec-table th,
.spec-table td {
  padding: 18px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--line);
  line-height: 1.48;
}

.spec-table th {
  color: var(--green-dark);
  background: var(--surface-soft);
  font-size: 14px;
}

.spec-table td {
  color: var(--muted);
}

.spec-table td:first-child {
  color: var(--ink);
  font-weight: 800;
}

.spec-table tr:last-child td {
  border-bottom: 0;
}

.performance-band {
  display: grid;
  grid-template-columns: minmax(300px, 0.9fr) minmax(300px, 1fr);
  gap: clamp(28px, 6vw, 80px);
  padding: 84px clamp(18px, 5vw, 72px);
  color: #fff;
  background:
    linear-gradient(90deg, rgba(22, 77, 53, 0.94), rgba(47, 82, 98, 0.88)),
    url("https://images.unsplash.com/photo-1503387762-592deb58ef4e?auto=format&fit=crop&w=1600&q=80") center/cover;
}

.performance-copy p {
  margin-top: 22px;
  color: rgba(255, 255, 255, 0.78);
}

.performance-list {
  display: grid;
  gap: 14px;
}

.performance-list div {
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 8px;
  padding: 22px;
  background: rgba(255, 255, 255, 0.1);
}

.performance-list strong,
.performance-list span {
  display: block;
}

.performance-list strong {
  font-size: 20px;
}

.performance-list span {
  color: rgba(255, 255, 255, 0.76);
}

.process-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin-top: 34px;
}

.process-grid div {
  min-height: 220px;
  border-left: 4px solid var(--copper);
  padding: 24px;
  background: var(--surface);
  box-shadow: 0 14px 40px rgba(30, 45, 38, 0.08);
}

.process-grid span {
  display: inline-block;
  margin-bottom: 32px;
  color: var(--steel);
  font-weight: 900;
  font-size: 14px;
}

.contact-section {
  display: grid;
  grid-template-columns: minmax(300px, 0.9fr) minmax(320px, 560px);
  gap: clamp(28px, 6vw, 84px);
  padding: 86px clamp(18px, 5vw, 72px);
  background: #e9eee9;
}

.contact-copy p {
  margin-top: 22px;
}

.contact-methods a {
  display: inline-flex;
  align-items: center;
  min-height: 42px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px 12px;
  background: var(--surface);
  color: var(--green-dark);
  font-weight: 800;
}

.quote-form {
  display: grid;
  gap: 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: clamp(20px, 4vw, 30px);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.quote-form label {
  display: grid;
  gap: 8px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 700;
}

.quote-form input,
.quote-form select,
.quote-form textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px;
  color: var(--ink);
  background: #fff;
}

.quote-form input,
.quote-form select {
  min-height: 46px;
}

.quote-form textarea {
  resize: vertical;
  min-height: 126px;
}

.quote-form input:focus,
.quote-form select:focus,
.quote-form textarea:focus {
  outline: 3px solid rgba(31, 111, 74, 0.16);
  border-color: var(--green);
}

.primary-button {
  width: 100%;
  cursor: pointer;
}

.form-output {
  display: none;
  border-radius: 8px;
  padding: 14px;
  background: var(--surface-soft);
  color: var(--green-dark);
  line-height: 1.55;
}

.form-output.is-visible {
  display: block;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  padding: 26px clamp(18px, 5vw, 72px);
  color: rgba(255, 255, 255, 0.75);
  background: #17231d;
  font-size: 14px;
}

.site-footer span:first-child {
  color: #fff;
  font-weight: 800;
}

@media (max-width: 1120px) {
  .product-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .catalog-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .catalog-group:nth-child(3n) {
    border-right: 1px solid var(--line);
  }

  .catalog-group:nth-child(2n) {
    border-right: 0;
  }

  .catalog-group:nth-last-child(-n + 3) {
    border-bottom: 1px solid var(--line);
  }

  .catalog-group:nth-last-child(-n + 2) {
    border-bottom: 0;
  }
}

@media (max-width: 820px) {
  .product-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .site-header {
    min-height: 68px;
  }

  .nav-toggle {
    display: block;
  }

  .site-nav {
    position: fixed;
    inset: 68px 14px auto;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #fff;
    color: var(--ink);
    box-shadow: var(--shadow);
    overflow: hidden;
  }

  .site-nav.is-open {
    display: flex;
  }

  .site-nav a {
    padding: 16px;
    border-bottom: 1px solid var(--line);
  }

  .site-nav a:last-child {
    border-bottom: 0;
  }

  .hero {
    min-height: 88vh;
    padding-top: 112px;
  }

  .hero-content {
    padding-bottom: 38px;
  }

  .hero-stats,
  .intro-section,
  .catalog-intro,
  .detail-showcase,
  .performance-band,
  .process-grid,
  .contact-section {
    grid-template-columns: 1fr;
  }

  .hero-stats div {
    border-right: 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
  }

  .hero-stats div:last-child {
    border-bottom: 0;
  }

  .section,
  .performance-band,
  .contact-section {
    padding-top: 64px;
    padding-bottom: 64px;
  }

  .detail-media img {
    min-height: 320px;
  }

  .site-footer {
    flex-direction: column;
  }
}

@media (max-width: 620px) {
  .brand strong {
    font-size: 15px;
  }

  .brand small {
    display: none;
  }

  .hero {
    min-height: 100vh;
  }

  .hero-actions a {
    width: 100%;
  }

  .product-grid {
    grid-template-columns: 1fr;
  }

  .catalog-grid {
    grid-template-columns: 1fr;
  }

  .catalog-group,
  .catalog-group:nth-child(2n),
  .catalog-group:nth-child(3n),
  .catalog-group:nth-last-child(-n + 2),
  .catalog-group:nth-last-child(-n + 3) {
    min-height: 0;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .catalog-group:last-child {
    border-bottom: 0;
  }

  .detail-grid {
    grid-template-columns: 1fr;
  }

  .product-card div,
  .process-grid div {
    padding: 18px;
  }
}