:root {
  --ink: #17211b;
  --muted: #5f6d63;
  --paper: #f7f3ea;
  --panel: #fffdf7;
  --line: rgba(23, 33, 27, 0.14);
  --green: #1f6b46;
  --green-dark: #12442d;
  --sand: #e7d3aa;
  --white: #ffffff;
  --shadow: 0 18px 50px rgba(23, 33, 27, 0.14);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.5;
}

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

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

.site-header {
  position: fixed;
  z-index: 20;
  top: 0;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px clamp(18px, 4vw, 56px);
  color: var(--white);
  transition: background 180ms ease, box-shadow 180ms ease, color 180ms ease;
}

.site-header.is-scrolled,
.site-header.is-open {
  color: var(--ink);
  background: rgba(247, 243, 234, 0.94);
  box-shadow: 0 8px 30px rgba(23, 33, 27, 0.1);
  backdrop-filter: blur(14px);
}

.brand {
  display: inline-flex;
  align-items: center;
  width: min(300px, 54vw);
  padding: 8px 10px;
  border-radius: 8px;
  background: rgba(0, 0, 0, 0.68);
  backdrop-filter: blur(8px);
}

.brand-logo {
  width: 100%;
  height: auto;
  max-height: 48px;
  object-fit: contain;
  object-position: left center;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 22px;
  font-weight: 700;
  font-size: 0.95rem;
}

.site-nav a {
  opacity: 0.88;
}

.site-nav a:hover {
  opacity: 1;
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid currentColor;
  border-radius: 8px;
  background: transparent;
  color: inherit;
  padding: 10px;
}

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

.hero {
  position: relative;
  min-height: 760px;
  display: grid;
  align-items: center;
  overflow: hidden;
}

.hero-image,
.hero-overlay {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.hero-image {
  object-fit: cover;
}

.hero-overlay {
  background:
    linear-gradient(90deg, rgba(14, 26, 17, 0.76) 0%, rgba(14, 26, 17, 0.48) 42%, rgba(14, 26, 17, 0.08) 100%),
    linear-gradient(0deg, rgba(14, 26, 17, 0.2), rgba(14, 26, 17, 0.2));
}

.hero-content {
  position: relative;
  z-index: 1;
  width: min(720px, calc(100% - 36px));
  margin-left: clamp(18px, 6vw, 80px);
  padding-top: 84px;
  color: var(--white);
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--green);
  font-size: 0.78rem;
  font-weight: 850;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.hero .eyebrow {
  color: var(--sand);
}

h1,
h2,
h3,
p {
  overflow-wrap: anywhere;
}

h1 {
  margin: 0;
  font-size: clamp(2.65rem, 6vw, 5.5rem);
  line-height: 0.98;
  letter-spacing: 0;
}

h2 {
  margin: 0;
  font-size: clamp(2rem, 4vw, 3.4rem);
  line-height: 1.05;
}

h3 {
  margin: 0;
  font-size: 1.25rem;
}

.hero-copy {
  max-width: 620px;
  margin: 24px 0 0;
  color: rgba(255, 255, 255, 0.88);
  font-size: 1.18rem;
}

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

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  border-radius: 8px;
  font-weight: 850;
}

.button.primary {
  color: var(--white);
  background: var(--green);
}

.button.secondary {
  color: var(--white);
  border: 1px solid rgba(255, 255, 255, 0.7);
}

.section {
  width: min(1180px, calc(100% - 36px));
  margin: 0 auto;
  padding: 88px 0;
}

.intro {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(280px, 0.7fr);
  gap: 56px;
  align-items: end;
}

.intro > p,
.benefit-copy p,
.cta p {
  color: var(--muted);
  font-size: 1.08rem;
}

.section-heading {
  margin-bottom: 32px;
}

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

.model-card {
  min-height: 330px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}

.model-card.featured {
  background: var(--green-dark);
  color: var(--white);
  box-shadow: var(--shadow);
}

.tag {
  display: inline-flex;
  margin-bottom: 34px;
  padding: 7px 10px;
  border-radius: 999px;
  color: var(--green-dark);
  background: rgba(31, 107, 70, 0.12);
  font-size: 0.78rem;
  font-weight: 850;
}

.featured .tag {
  color: var(--white);
  background: rgba(255, 255, 255, 0.14);
}

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

.featured p {
  color: rgba(255, 255, 255, 0.76);
}

.model-card ul {
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
}

.model-card li {
  padding: 11px 0;
  border-top: 1px solid var(--line);
}

.featured li {
  border-color: rgba(255, 255, 255, 0.18);
}

.process {
  width: 100%;
  max-width: none;
  padding-right: clamp(18px, 6vw, 80px);
  padding-left: clamp(18px, 6vw, 80px);
  background: #eaf0e5;
}

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

.step {
  padding: 28px;
  border-left: 3px solid var(--green);
  background: rgba(255, 255, 255, 0.54);
}

.step span {
  color: var(--green);
  font-weight: 900;
}

.benefits {
  display: grid;
  grid-template-columns: minmax(0, 0.86fr) minmax(320px, 0.72fr);
  gap: 64px;
  align-items: center;
}

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

.benefit-list div {
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}

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

.benefit-list span {
  margin-top: 6px;
  color: var(--muted);
}

.cta {
  width: min(1180px, calc(100% - 36px));
  margin: 0 auto 88px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, 420px);
  gap: 32px;
  padding: 42px;
  border-radius: 8px;
  color: var(--white);
  background: var(--green-dark);
}

.cta .eyebrow,
.cta p {
  color: rgba(255, 255, 255, 0.76);
}

.contact-card {
  display: grid;
  gap: 12px;
}

.contact-card a {
  padding: 16px 18px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.08);
  font-weight: 800;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 28px clamp(18px, 4vw, 56px);
  color: var(--muted);
  border-top: 1px solid var(--line);
}

@media (max-width: 860px) {
  .nav-toggle {
    display: block;
  }

  .site-nav {
    position: absolute;
    top: 78px;
    left: 18px;
    right: 18px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 12px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--panel);
    color: var(--ink);
    box-shadow: var(--shadow);
  }

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

  .site-nav a {
    padding: 14px;
  }

  .hero {
    min-height: 680px;
  }

  .hero-overlay {
    background: linear-gradient(0deg, rgba(14, 26, 17, 0.78), rgba(14, 26, 17, 0.3));
  }

  .hero-content {
    margin: 0 auto;
    align-self: end;
    padding-bottom: 56px;
  }

  .intro,
  .model-grid,
  .steps,
  .benefits,
  .cta {
    grid-template-columns: 1fr;
  }

  .section {
    padding: 64px 0;
  }

  .model-card {
    min-height: auto;
  }

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

@media (max-width: 520px) {
  .site-header {
    padding: 14px 16px;
  }

  .brand {
    width: min(230px, 58vw);
  }

  .hero-actions,
  .button {
    width: 100%;
  }

  .cta {
    padding: 28px 20px;
  }
}