:root {
  --bg: #f5f8f7;
  --surface: #ffffff;
  --ink: #0f1a14;
  --muted: #5a6e65;
  --brand: #00997a;
  --brand-2: #00b39f;
  --accent-dark: #004c3f;
  --radius: 16px;
  --shadow: 0 10px 30px rgba(0, 100, 80, .08);
  --max: 1200px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font: 16px/1.5 system-ui, -apple-system, Segoe UI, Roboto, Inter, sans-serif;
  color: var(--ink);
  background: linear-gradient(180deg, #f5f8f7 0%, #f8fbfa 60%);
}

.container { max-width: var(--max); margin: 0 auto; padding: 0 20px; }
.stack { display: grid; gap: 24px; }
.cluster { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }

header.site-header {
  position: sticky; top: 0; z-index: 100;
  backdrop-filter: saturate(180%) blur(8px);
  background: rgba(255,255,255,.92);
  border-bottom: 1px solid #e0ede9;
}
.nav { display: flex; align-items: center; justify-content: space-between; height: 64px; }

.brand-logo {
  height: 42px;
  width: auto;
  display: block;
}

nav ul { list-style: none; display: flex; gap: 16px; align-items: center; }
nav a { text-decoration: none; color: var(--ink); font-weight: 600; opacity: .86; }
nav a:hover { opacity: 1; color: var(--brand); }
.icon-link { display: inline-flex; align-items: center; gap: 8px; }
.icon-link img { width: 18px; height: 18px; display: block; }

.nav-toggle {
  position: absolute;
  left: -9999px;
}

.menu-toggle {
  display: none; flex-direction: column; gap: 5px; cursor: pointer;
  padding: 8px; border-radius: 10px; transition: background .2s ease;
}
.menu-toggle:hover { background: rgba(0, 153, 122, 0.1); }
.menu-toggle span { width: 24px; height: 2px; background: var(--ink); border-radius: 2px; transition: transform .2s ease, opacity .2s ease; }

.mobile-nav { display: none; flex-direction: column; background: #fff; border-top: 1px solid #e7eeea; }
.mobile-nav a { padding: 14px 20px; border-bottom: 1px solid #e7eeea; text-decoration: none; color: var(--ink); }
.nav-toggle:checked ~ .mobile-nav { display: flex; }
.nav-toggle:checked + .nav .menu-toggle span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle:checked + .nav .menu-toggle span:nth-child(2) { opacity: 0; }
.nav-toggle:checked + .nav .menu-toggle span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.cta {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 10px 16px; background: var(--brand); color: #fff;
  border-radius: 999px; text-decoration: none;
  box-shadow: var(--shadow); font-weight: 700; transition: 0.2s ease;
}
.cta:hover { background: var(--accent-dark); }
.cta.secondary {
  background: #e3f4f0; color: var(--brand); box-shadow: none;
}
.cta.secondary:hover { background: #d6f0ea; }

.hero { padding: 80px 0 48px; }
.hero-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 36px; align-items: center; }
h1 { font-size: clamp(2rem, 4vw, 3rem); line-height: 1.1; margin: 8px 0 16px; color: var(--accent-dark); }
.lead { font-size: 1.1rem; color: var(--muted); max-width: 60ch; }
.hero-cta { display: flex; gap: 12px; margin-top: 22px; flex-wrap: wrap; }

.hero-visual {
  background: var(--surface);
  border-radius: var(--radius);
  min-height: 320px;
  box-shadow: var(--shadow);
  display: flex; align-items: center; justify-content: center;
}
.hero-visual img { max-width: 90%; height: auto; border-radius: 12px; }

section { padding: 60px 0; }
.steps, .impact-grid { display: grid; gap: 24px; }
.step, .impact-box {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
  border: 1px solid #e1f0ec;
  transition: transform .2s ease;
}
.step:hover, .impact-box:hover { transform: translateY(-4px); }

ul { margin: 10px 0 0 20px; }
li { margin-bottom: 6px; }

.steps { grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); }
.impact-grid { grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); margin-top: 20px; text-align: center; }
.impact-box h3 { color: var(--brand); font-size: 2rem; margin-bottom: 8px; }

section.cta .cta-panel {
  background: linear-gradient(135deg, #e6f7f3, #f0fbf8);
  border-radius: 20px; padding: 40px;
  text-align: center; box-shadow: var(--shadow);
}

.product-highlight {
  background: linear-gradient(135deg, #e6f7f3, #f0fbf8);
  border-radius: 20px;
  padding: 40px;
  box-shadow: var(--shadow);
  text-align: center;
}
.product-highlight h2 { margin-bottom: 12px; }
.product-highlight .lead { margin: 0 auto 20px; }
.product-highlight .product-features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin: 24px 0;
  text-align: left;
}
.product-highlight .product-features div {
  background: rgba(255,255,255,.7);
  border-radius: var(--radius);
  padding: 16px;
}

nav a.nav-product { color: var(--brand); opacity: 1; }
.mobile-nav a.nav-product { color: var(--brand); font-weight: 700; }

main { overflow-wrap: break-word; word-break: break-word; }

footer.site-footer {
  background: var(--accent-dark);
  color: #d8e6df; padding: 28px 0;
  margin-top: 40px;
}
.foot { display: flex; flex-direction: column; align-items: center; gap: 12px; text-align: center; }
footer a { color: #c9e8df; text-decoration: none; }
footer a:hover { color: #ffffff; }

@media (max-width: 1024px) {
  nav ul { display: none; }
  .menu-toggle { display: flex; }
}

@media (max-width: 768px) {
  .hero-grid { grid-template-columns: 1fr; text-align: center; }
  .brand-logo { height: 32px; }
  section { padding: 40px 0; }
  .hero { padding: 48px 0 32px; }
  .product-highlight { padding: 24px; }
  .product-highlight .product-features { grid-template-columns: 1fr; }
  h1 { font-size: 1.75rem; }
  .hero-cta { flex-direction: column; align-items: stretch; }
  .hero-cta .cta { justify-content: center; }
}