:root {
  --bg: #f6f8fb;
  --surface: #ffffff;
  --surface-strong: #eef5f3;
  --ink: #102027;
  --muted: #5f7077;
  --line: #d9e3e1;
  --primary: #0f766e;
  --primary-dark: #0b4f4a;
  --accent: #e4a11b;
  --accent-soft: #fff3d7;
  --blue: #1d4ed8;
  --shadow: 0 22px 60px rgba(16, 32, 39, 0.12);
  --radius: 8px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

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

body.menu-open {
  overflow: hidden;
}

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

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

svg {
  width: 20px;
  height: 20px;
  stroke-width: 2.2;
}

.section-shell {
  width: min(1160px, calc(100% - 40px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 24px;
  min-height: 76px;
  padding: 12px max(20px, calc((100vw - 1160px) / 2));
  border-bottom: 1px solid rgba(217, 227, 225, 0.8);
  background: rgba(246, 248, 251, 0.92);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
}

.brand-mark {
  width: 48px;
  height: 48px;
  object-fit: contain;
}

.brand-copy {
  display: grid;
  line-height: 1.1;
}

.brand-copy strong {
  font-size: 1.05rem;
  letter-spacing: 0;
}

.brand-copy small {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 600;
}

.nav-links {
  display: flex;
  justify-content: center;
  gap: 28px;
  color: #385057;
  font-size: 0.95rem;
  font-weight: 700;
}

.nav-links a {
  transition: color 0.2s ease;
}

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

.header-cta,
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 46px;
  border-radius: var(--radius);
  border: 1px solid transparent;
  font-weight: 800;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.header-cta {
  padding: 0 18px;
  background: var(--ink);
  color: #fff;
}

.btn {
  padding: 0 22px;
}

.btn:hover,
.header-cta:hover {
  transform: translateY(-2px);
}

.btn-primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 16px 28px rgba(15, 118, 110, 0.22);
}

.btn-primary:hover {
  background: var(--primary-dark);
}

.btn-secondary {
  border-color: var(--line);
  background: #fff;
  color: var(--ink);
}

.menu-toggle {
  display: none;
  width: 46px;
  height: 46px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  color: var(--ink);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(360px, 0.92fr);
  gap: 44px;
  align-items: center;
  min-height: calc(100svh - 76px);
  padding: 72px 0 54px;
}

.hero-content h1,
.intro h2,
.section-heading h2,
.commercial h2,
.contact h2 {
  margin: 0;
  letter-spacing: 0;
  line-height: 1.03;
}

.hero-content h1 {
  max-width: 760px;
  font-size: clamp(2.65rem, 6vw, 5.6rem);
}

.hero-content p {
  max-width: 690px;
  margin: 24px 0 0;
  color: var(--muted);
  font-size: clamp(1.05rem, 2vw, 1.24rem);
  line-height: 1.7;
}

.eyebrow,
.section-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
  color: var(--primary-dark);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.eyebrow span {
  width: 38px;
  height: 2px;
  background: var(--accent);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.trust-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.trust-row span {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 38px;
  padding: 0 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.72);
  color: #385057;
  font-size: 0.9rem;
  font-weight: 700;
}

.hero-panel {
  position: relative;
  overflow: hidden;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.96), rgba(238, 245, 243, 0.94)),
    radial-gradient(circle at 85% 10%, rgba(228, 161, 27, 0.22), transparent 30%);
  box-shadow: var(--shadow);
}

.product-card {
  display: grid;
  grid-template-columns: 82px 1fr;
  gap: 16px;
  align-items: center;
  padding-bottom: 22px;
  border-bottom: 1px solid var(--line);
}

.product-card img {
  width: 82px;
  height: 82px;
  object-fit: contain;
  border-radius: var(--radius);
  background: #fff;
}

.product-card strong,
.metrics-grid strong {
  display: block;
  font-size: 1.25rem;
}

.product-card span,
.metrics-grid span,
.panel-list span {
  color: var(--muted);
  line-height: 1.5;
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 18px;
}

.metrics-grid div {
  min-height: 112px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
}

.metrics-grid strong {
  color: var(--primary-dark);
  font-size: 2rem;
}

.panel-list {
  display: grid;
  gap: 12px;
  margin-top: 20px;
}

.panel-list span {
  display: flex;
  gap: 10px;
  align-items: center;
  font-weight: 700;
}

.panel-list svg {
  color: var(--primary);
  flex: 0 0 auto;
}

.intro,
.why,
.commercial,
.faq,
.contact {
  padding: 92px 0;
}

.split {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 52px;
}

.split h2,
.section-heading h2,
.commercial h2,
.contact h2 {
  font-size: clamp(2rem, 4vw, 3.3rem);
}

.split p,
.section-heading p,
.commercial p,
.contact p {
  color: var(--muted);
  font-size: 1.05rem;
  line-height: 1.75;
}

.features,
.audience {
  padding: 92px 0;
  background: #fff;
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(300px, 0.65fr);
  gap: 42px;
  align-items: end;
  margin-bottom: 34px;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 16px;
}

.feature-card {
  min-height: 242px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, #fff, #f8fbfa);
}

.feature-card svg {
  width: 32px;
  height: 32px;
  color: var(--primary);
}

.feature-card h3 {
  margin: 18px 0 10px;
  font-size: 1.03rem;
  line-height: 1.25;
}

.feature-card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.94rem;
  line-height: 1.58;
}

.benefit-list {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: 12px;
}

.benefit-list div {
  display: grid;
  align-content: start;
  gap: 14px;
  min-height: 150px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  color: #29444b;
  font-weight: 800;
  line-height: 1.35;
}

.benefit-list svg {
  color: var(--accent);
}

.audience-grid {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 14px;
}

.audience-grid article {
  display: grid;
  gap: 18px;
  min-height: 160px;
  align-content: center;
  justify-items: center;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface-strong);
  text-align: center;
  font-weight: 900;
}

.audience-grid svg {
  width: 38px;
  height: 38px;
  color: var(--primary-dark);
}

.faq-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.faq-grid article {
  min-height: 210px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}

.faq-grid h3 {
  margin: 0 0 12px;
  font-size: 1.12rem;
  line-height: 1.35;
}

.faq-grid p {
  margin: 0;
  color: var(--muted);
  line-height: 1.7;
}

.commercial-card,
.contact-card {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 44px;
  align-items: center;
  padding: 38px;
  border-radius: 18px;
  background: var(--ink);
  color: #fff;
  box-shadow: var(--shadow);
}

.commercial-card img {
  width: 220px;
  margin: 0 auto;
  filter: drop-shadow(0 18px 28px rgba(0, 0, 0, 0.22));
}

.commercial-card .section-kicker,
.contact-card .section-kicker {
  color: #8bd6ce;
}

.commercial-card p,
.contact-card p {
  color: #cfdbde;
}

.contact-card {
  grid-template-columns: 1fr 360px;
  background:
    linear-gradient(135deg, rgba(15, 118, 110, 0.96), rgba(16, 32, 39, 0.98)),
    var(--primary-dark);
}

.contact-info {
  display: grid;
  gap: 12px;
  padding: 20px;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.08);
}

.contact-info div {
  display: grid;
  gap: 4px;
  padding-bottom: 12px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.16);
}

.contact-info span {
  color: #b9d3d0;
  font-size: 0.82rem;
  font-weight: 800;
  text-transform: uppercase;
}

.contact-info strong {
  font-size: 1.1rem;
}

.contact-info .btn-primary {
  margin-top: 8px;
  background: var(--accent);
  color: #231907;
  box-shadow: none;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 26px max(20px, calc((100vw - 1160px) / 2));
  color: var(--muted);
  font-size: 0.94rem;
}

.site-footer a {
  color: var(--primary-dark);
  font-weight: 900;
}

@media (max-width: 1080px) {
  .feature-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .benefit-list,
  .faq-grid,
  .audience-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 920px) {
  .site-header {
    grid-template-columns: auto auto;
    justify-content: space-between;
  }

  .menu-toggle {
    display: inline-grid;
    place-items: center;
  }

  .nav-links,
  .header-cta {
    display: none;
  }

  .nav-links.is-open {
    position: fixed;
    inset: 76px 16px auto;
    display: grid;
    justify-content: stretch;
    gap: 0;
    padding: 12px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: #fff;
    box-shadow: var(--shadow);
  }

  .nav-links.is-open a {
    padding: 16px;
    border-radius: var(--radius);
  }

  .nav-links.is-open a:hover {
    background: var(--surface-strong);
  }

  .hero,
  .split,
  .section-heading,
  .commercial-card,
  .contact-card {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
    padding-top: 54px;
  }

  .contact-card {
    gap: 24px;
  }
}

@media (max-width: 680px) {
  .section-shell {
    width: min(100% - 28px, 1160px);
  }

  .site-header {
    min-height: 70px;
  }

  .brand-mark {
    width: 42px;
    height: 42px;
  }

  .hero {
    gap: 28px;
    padding: 42px 0 34px;
  }

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

  .hero-panel,
  .commercial-card,
  .contact-card {
    border-radius: 12px;
    padding: 22px;
  }

  .product-card,
  .metrics-grid,
  .feature-grid,
  .benefit-list,
  .faq-grid,
  .audience-grid {
    grid-template-columns: 1fr;
  }

  .intro,
  .why,
  .commercial,
  .faq,
  .contact,
  .features,
  .audience {
    padding: 58px 0;
  }

  .feature-card,
  .benefit-list div,
  .audience-grid article {
    min-height: auto;
  }

  .commercial-card img {
    width: 170px;
  }

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