:root {
  --ink: #17202a;
  --muted: #5f6b76;
  --line: #dfe6ec;
  --panel: #f6f8f9;
  --accent: #0f6b5f;
  --accent-dark: #084b43;
  --warm: #b96b2d;
  --white: #ffffff;
  --shadow: 0 12px 30px rgba(23, 32, 42, 0.08);
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  color: var(--ink);
  background: var(--white);
  line-height: 1.6;
}
a { color: inherit; }
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(255, 255, 255, 0.97);
  border-bottom: 1px solid var(--line);
}
.nav {
  max-width: 1180px;
  min-height: 72px;
  margin: 0 auto;
  padding: 0 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}
.brand {
  font-size: 22px;
  font-weight: 800;
  text-decoration: none;
}
.nav-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 14px;
  font-size: 14px;
}
.nav-links a {
  color: var(--muted);
  font-weight: 700;
  text-decoration: none;
}
.nav-links a:hover { color: var(--accent); }
.hero {
  min-height: 620px;
  color: var(--white);
  display: flex;
  align-items: center;
  background:
    linear-gradient(90deg, rgba(23, 32, 42, 0.88), rgba(23, 32, 42, 0.62)),
    url("https://images.unsplash.com/photo-1556906781-9a412961c28c?auto=format&fit=crop&w=1800&q=80") center/cover;
}
.hero-inner, .section-inner {
  max-width: 1180px;
  margin: 0 auto;
  padding: 72px 22px;
}
.hero-content { max-width: 780px; }
.eyebrow {
  margin: 0 0 12px;
  color: var(--warm);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
h1, h2, h3 {
  margin: 0 0 18px;
  line-height: 1.15;
}
h1 { font-size: 54px; }
h2 { font-size: 34px; }
h3 { font-size: 21px; }
p { margin: 0 0 16px; }
.lead { font-size: 20px; }
.muted { color: var(--muted); }
.hero .muted { color: rgba(255, 255, 255, 0.84); }
.actions {
  margin-top: 28px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 12px 18px;
  border: 1px solid var(--accent);
  border-radius: 6px;
  background: var(--accent);
  color: var(--white);
  font-weight: 800;
  text-decoration: none;
  cursor: pointer;
}
.button.secondary {
  background: var(--white);
  color: var(--accent);
}
.hero .button.secondary {
  background: transparent;
  border-color: rgba(255, 255, 255, 0.72);
  color: var(--white);
}
.section { border-bottom: 1px solid var(--line); }
.section.alt, .page-title { background: var(--panel); }
.page-title .section-inner {
  padding-top: 54px;
  padding-bottom: 46px;
}
.grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}
.grid.two { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.card, .product-card, .step {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 24px;
  box-shadow: var(--shadow);
}
.product-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.tag {
  width: fit-content;
  padding: 4px 10px;
  border: 1px solid rgba(15, 107, 95, 0.25);
  border-radius: 999px;
  background: #edf7f5;
  color: var(--accent);
  font-size: 12px;
  font-weight: 800;
}
.spec-list, .policy-list {
  margin: 0;
  padding: 0;
  list-style: none;
}
.spec-list li, .policy-list li {
  padding: 8px 0;
  border-bottom: 1px solid var(--line);
}
.spec-list strong {
  display: inline-block;
  min-width: 138px;
}
.process {
  counter-reset: step;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}
.step::before {
  counter-increment: step;
  content: counter(step);
  display: inline-flex;
  width: 34px;
  height: 34px;
  align-items: center;
  justify-content: center;
  margin-bottom: 14px;
  border-radius: 50%;
  background: var(--accent);
  color: var(--white);
  font-weight: 800;
}
.contact-panel {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 26px;
}
.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}
.form-grid .full { grid-column: 1 / -1; }
label {
  display: block;
  margin-bottom: 6px;
  font-weight: 800;
}
input, textarea {
  width: 100%;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 6px;
  font: inherit;
}
textarea {
  min-height: 140px;
  resize: vertical;
}
.footer {
  background: var(--ink);
  color: var(--white);
}
.footer .section-inner {
  padding-top: 38px;
  padding-bottom: 38px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr 0.8fr;
  gap: 28px;
}
.footer a {
  display: block;
  margin: 6px 0;
  color: rgba(255, 255, 255, 0.84);
  text-decoration: none;
}
@media (max-width: 860px) {
  .nav {
    align-items: flex-start;
    flex-direction: column;
    padding-top: 16px;
    padding-bottom: 16px;
  }
  .nav-links { justify-content: flex-start; }
  h1 { font-size: 38px; }
  h2 { font-size: 28px; }
  .hero { min-height: 560px; }
  .grid, .grid.two, .process, .contact-panel, .footer-grid {
    grid-template-columns: 1fr;
  }
}
@media (max-width: 560px) {
  .hero-inner, .section-inner { padding: 48px 18px; }
  .form-grid { grid-template-columns: 1fr; }
  .button { width: 100%; }
}