:root {
  --green-900: #173f28;
  --green-800: #1f5634;
  --green-700: #2f7d1f;
  --green-600: #4e9631;
  --green-200: #dcebd3;
  --green-100: #eef7e9;
  --cream: #f8f6ef;
  --white: #ffffff;
  --text: #203027;
  --muted: #68756c;
  --line: #dfe7dd;
  --shadow: 0 14px 36px rgba(23, 63, 40, 0.10);
  --radius: 18px;
  --container: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--text);
  background: var(--white);
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.6;
}

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

a {
  color: inherit;
}

.container {
  width: min(100% - 32px, var(--container));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(10px);
}

.nav-wrap {
  min-height: 74px;
  display: flex;
  align-items: center;
  gap: 28px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--green-900);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.65rem;
  font-weight: 700;
  text-decoration: none;
  white-space: nowrap;
}

.brand-dot {
  width: 13px;
  height: 13px;
  border-radius: 50%;
  background: var(--green-600);
  box-shadow: 8px -5px 0 -2px var(--green-200);
}

.main-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 22px;
  margin-left: auto;
}

.main-nav a {
  color: var(--green-900);
  font-size: 0.96rem;
  font-weight: 700;
  text-decoration: none;
}

.main-nav a:hover {
  color: var(--green-600);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 12px 22px;
  color: var(--white);
  background: var(--green-700);
  border: 2px solid var(--green-700);
  border-radius: 999px;
  font-weight: 800;
  text-align: center;
  text-decoration: none;
  transition: transform 180ms ease, background-color 180ms ease, box-shadow 180ms ease;
}

.btn:hover,
.btn:focus-visible {
  transform: translateY(-2px);
  background: var(--green-800);
  border-color: var(--green-800);
  box-shadow: 0 10px 24px rgba(47, 125, 31, 0.22);
}

.btn-small {
  min-height: 42px;
  padding: 9px 18px;
  font-size: 0.92rem;
  white-space: nowrap;
}

.btn-outline {
  color: var(--green-800);
  background: transparent;
}

.btn-light {
  color: var(--green-900);
  background: var(--white);
  border-color: var(--white);
}

.hero {
  padding: 78px 0 64px;
  background:
    radial-gradient(circle at 85% 20%, rgba(220, 235, 211, 0.8), transparent 31%),
    linear-gradient(180deg, #ffffff 0%, #f8fbf5 100%);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 58px;
  align-items: center;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--green-600);
  font-size: 0.82rem;
  font-weight: 900;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.hero h1,
.section h2,
.cta h2 {
  margin: 0;
  color: var(--green-900);
  font-family: Georgia, "Times New Roman", serif;
  line-height: 1.08;
}

.hero h1 {
  max-width: 680px;
  font-size: clamp(2.45rem, 5vw, 4.8rem);
}

.lead {
  max-width: 650px;
  margin: 24px 0;
  color: var(--muted);
  font-size: 1.13rem;
}

.hero-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 11px 20px;
  margin: 0 0 30px;
  padding: 0;
  list-style: none;
}

.hero-list li {
  position: relative;
  padding-left: 28px;
  font-weight: 700;
}

.hero-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--green-600);
  font-weight: 900;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.hero-photo {
  margin: 0;
  padding: 18px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 28px;
  box-shadow: var(--shadow);
}

.hero-photo img {
  width: 100%;
  height: auto;
  border-radius: 18px;
}

.benefits {
  padding: 26px 0 70px;
  background: var(--white);
}

.cards-4 {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.benefit-card {
  padding: 24px;
  background: var(--cream);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.icon {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  margin-bottom: 16px;
  color: var(--green-800);
  background: var(--green-100);
  border-radius: 12px;
  font-weight: 900;
}

.benefit-card h2 {
  margin: 0 0 10px;
  color: var(--green-900);
  font-size: 1.12rem;
}

.benefit-card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.96rem;
}

.section {
  padding: 84px 0;
}

.section-soft {
  background: var(--green-100);
}

.split {
  display: grid;
  grid-template-columns: 0.78fr 1.22fr;
  gap: 48px;
  align-items: center;
}

.section h2 {
  font-size: clamp(2rem, 4vw, 3.2rem);
}

.section-copy > p:not(.eyebrow) {
  color: var(--muted);
  font-size: 1.05rem;
}

.detail-card,
.regulation-image {
  margin: 28px 0 0;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.detail-card {
  padding: 12px;
}

.detail-card img,
.regulation-image img {
  width: 100%;
  height: auto;
  border-radius: calc(var(--radius) - 6px);
}

.regulation-image {
  margin: 0;
  padding: 16px;
}

.section-head {
  max-width: 700px;
  margin: 0 auto 34px;
  text-align: center;
}

.section-head p:last-child {
  margin-bottom: 0;
  color: var(--muted);
}

.color-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.color-card {
  display: block;
  min-width: 0;
  padding: 10px;
  color: var(--green-900);
  background: var(--white);
  border: 2px solid transparent;
  border-radius: 16px;
  box-shadow: 0 8px 24px rgba(23, 63, 40, 0.08);
  text-decoration: none;
  transition:
    transform 180ms ease,
    border-color 180ms ease,
    box-shadow 180ms ease,
    background-color 180ms ease;
}

.color-card img {
  width: 100%;
  height: auto;
  border-radius: 11px;
}

.color-card span {
  display: block;
  padding: 11px 4px 3px;
  text-align: center;
  font-weight: 800;
}

.color-card:hover,
.color-card:focus-visible {
  transform: translateY(-5px);
  border-color: var(--green-600);
  background: #f8fff4;
  box-shadow: 0 14px 30px rgba(23, 63, 40, 0.16);
}

.color-card:focus-visible {
  outline: 3px solid rgba(78, 150, 49, 0.32);
  outline-offset: 3px;
}

.color-card.selected {
  border-color: var(--green-600);
}

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

.gallery-grid figure {
  margin: 0;
  padding: 10px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 16px;
  box-shadow: 0 8px 24px rgba(23, 63, 40, 0.07);
}

.gallery-grid img {
  width: 100%;
  height: auto;
  border-radius: 10px;
}

.gallery-grid figcaption {
  padding: 10px 4px 2px;
  color: var(--green-900);
  font-weight: 800;
  text-align: center;
}

.cta {
  padding: 58px 0;
  color: var(--white);
  background: linear-gradient(135deg, var(--green-800), var(--green-600));
}

.cta-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
}

.cta h2 {
  color: var(--white);
  font-size: clamp(1.8rem, 3vw, 2.8rem);
}

.cta p {
  margin-bottom: 0;
}

.eyebrow-light {
  color: var(--green-200);
}

.footer {
  padding: 56px 0 20px;
  color: #dbe9df;
  background: var(--green-900);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr 1fr;
  gap: 40px;
}

.brand-footer {
  color: var(--white);
}

.footer h2 {
  margin: 0 0 14px;
  color: var(--white);
  font-size: 1.1rem;
}

.footer p {
  margin: 6px 0;
}

.footer a {
  color: #dbe9df;
  text-decoration: none;
}

.footer a:hover {
  color: var(--white);
}

.copyright {
  margin-top: 34px;
  padding-top: 18px;
  border-top: 1px solid rgba(255, 255, 255, 0.14);
  font-size: 0.9rem;
}

@media (max-width: 980px) {
  .nav-wrap {
    flex-wrap: wrap;
    padding: 14px 0;
  }

  .main-nav {
    order: 3;
    width: 100%;
    justify-content: flex-start;
    overflow-x: auto;
    padding-bottom: 3px;
  }

  .hero-grid,
  .split {
    grid-template-columns: 1fr;
  }

  .cards-4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

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

@media (max-width: 680px) {
  .container {
    width: min(100% - 22px, var(--container));
  }

  .site-header {
    position: static;
  }

  .nav-wrap {
    gap: 14px;
  }

  .main-nav {
    gap: 16px;
  }

  .main-nav a {
    font-size: 0.9rem;
  }

  .btn-small {
    margin-left: auto;
  }

  .hero {
    padding: 54px 0 46px;
  }

  .hero-list {
    grid-template-columns: 1fr;
  }

  .actions,
  .cta-inner {
    align-items: stretch;
    flex-direction: column;
  }

  .actions .btn,
  .cta .btn {
    width: 100%;
  }

  .cards-4,
  .color-grid,
  .gallery-grid,
  .footer-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .section {
    padding: 62px 0;
  }
}

@media (max-width: 440px) {
  .brand {
    font-size: 1.4rem;
  }

  .btn-small {
    width: 100%;
  }

  .cards-4,
  .color-grid,
  .gallery-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }
}