:root {
  color-scheme: light;
  --ink: #16202a;
  --muted: #617181;
  --line: #d8e0e6;
  --panel: #f6f8f9;
  --white: #ffffff;
  --blue: #0f6fae;
  --blue-dark: #0b4d79;
  --green: #177d65;
  --gold: #b9882d;
  --shadow: 0 18px 46px rgba(22, 32, 42, 0.12);
  font-family: Arial, Helvetica, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  font-size: 16px;
  line-height: 1.6;
}

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

a {
  color: inherit;
}

.skip-link {
  position: absolute;
  left: 16px;
  top: -80px;
  z-index: 10;
  padding: 10px 14px;
  color: var(--white);
  background: var(--blue-dark);
}

.skip-link:focus {
  top: 16px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 5;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 14px clamp(18px, 4vw, 64px);
  border-bottom: 1px solid rgba(216, 224, 230, 0.82);
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(14px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  min-width: 154px;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  color: var(--white);
  background: var(--blue);
  border-radius: 8px;
  font-weight: 700;
}

.brand strong,
.brand small {
  display: block;
}

.brand small {
  color: var(--muted);
  font-size: 12px;
}

.site-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
  flex: 1;
  font-size: 14px;
}

.site-nav a,
.footer-links a,
.contact-lines a,
.text-link {
  text-decoration: none;
}

.site-nav a:hover,
.footer-links a:hover,
.contact-lines a:hover,
.text-link:hover {
  color: var(--blue);
}

.menu-toggle {
  display: none;
  width: 48px;
  height: 40px;
  border: 1px solid var(--line);
  background: var(--white);
  border-radius: 8px;
  color: var(--ink);
}

.header-cta,
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 11px 18px;
  border-radius: 8px;
  border: 1px solid transparent;
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
}

.header-cta,
.button.primary {
  color: var(--white);
  background: var(--blue);
}

.button.secondary {
  border-color: var(--line);
  background: var(--white);
}

.header-cta:hover,
.button.primary:hover {
  background: var(--blue-dark);
}

.button.secondary:hover {
  border-color: var(--blue);
  color: var(--blue-dark);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(420px, 0.92fr);
  gap: clamp(28px, 5vw, 70px);
  align-items: center;
  padding: clamp(46px, 7vw, 92px) clamp(18px, 4vw, 64px) 40px;
}

.hero-copy {
  max-width: 700px;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--green);
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 18px;
  font-size: clamp(40px, 6vw, 72px);
  line-height: 1.02;
}

h2 {
  margin-bottom: 14px;
  font-size: clamp(28px, 4vw, 46px);
  line-height: 1.08;
}

h3 {
  margin-bottom: 10px;
  font-size: 20px;
  line-height: 1.24;
}

.hero-text {
  max-width: 650px;
  color: var(--muted);
  font-size: 19px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 26px 0;
}

.hero-facts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin: 0;
}

.hero-facts div {
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}

.hero-facts dt {
  color: var(--muted);
  font-size: 12px;
  text-transform: uppercase;
}

.hero-facts dd {
  margin: 4px 0 0;
  font-weight: 700;
}

.hero-media {
  margin: 0;
  box-shadow: var(--shadow);
  border-radius: 8px;
  overflow: hidden;
}

.hero-media img {
  width: 100%;
  height: min(640px, 72vh);
  object-fit: cover;
}

.section {
  padding: clamp(52px, 7vw, 88px) clamp(18px, 4vw, 64px);
}

.section-heading {
  max-width: 780px;
  margin-bottom: 28px;
}

.section-heading p:not(.eyebrow) {
  color: var(--muted);
}

.intro-band {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  background: var(--panel);
}

.intro-item {
  padding: 24px;
  border-left: 3px solid var(--blue);
  background: var(--white);
}

.intro-item span,
.steps span {
  color: var(--gold);
  font-weight: 800;
}

.intro-item p,
.product-card p,
.spec-list p,
.steps p,
.check-grid p,
.faq p,
.site-footer p,
.contact-copy p {
  color: var(--muted);
}

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

.product-card {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  background: var(--white);
}

.product-card img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: contain;
  background: var(--white);
}

.product-card div {
  padding: 18px;
}

.product-card ul {
  padding-left: 19px;
  margin: 12px 0 0;
  color: var(--muted);
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  gap: clamp(28px, 5vw, 72px);
  align-items: start;
}

.spec-list,
.check-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.spec-list div,
.check-grid div,
.steps li {
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
}

.process {
  background: #eef5f2;
}

.steps {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  padding: 0;
  margin: 0;
  list-style: none;
}

.steps span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  margin-bottom: 14px;
  border: 1px solid rgba(185, 136, 45, 0.45);
  border-radius: 50%;
}

.text-link {
  display: inline-flex;
  margin-top: 10px;
  color: var(--blue-dark);
  font-weight: 700;
}

.catalog-gallery {
  background: var(--panel);
}

.catalog-summary {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-bottom: 24px;
}

.catalog-summary-item {
  display: grid;
  gap: 4px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  text-decoration: none;
}

.catalog-summary-item span {
  color: var(--blue-dark);
  font-weight: 800;
}

.catalog-summary-item small {
  color: var(--muted);
}

.catalog-groups {
  display: grid;
  gap: 14px;
}

.catalog-group {
  background: var(--white);
}

.catalog-image-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 14px;
  margin-top: 18px;
}

.catalog-image-card {
  display: grid;
  gap: 8px;
  margin: 0;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
}

.catalog-image-card img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: contain;
  background: var(--white);
}

.catalog-image-card figcaption {
  color: var(--muted);
  font-size: 12px;
  line-height: 1.3;
}

.faq-list {
  display: grid;
  gap: 12px;
  max-width: 900px;
}

details {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 18px 20px;
  background: var(--white);
}

summary {
  cursor: pointer;
  font-weight: 700;
}

details p {
  margin: 12px 0 0;
}

.contact {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(360px, 1fr);
  gap: clamp(28px, 5vw, 70px);
  background: var(--ink);
  color: var(--white);
}

.contact p,
.contact .eyebrow {
  color: rgba(255, 255, 255, 0.78);
}

.contact-lines {
  display: grid;
  gap: 10px;
  margin-top: 20px;
  font-weight: 700;
}

.company-address {
  display: grid;
  gap: 6px;
  margin-top: 18px;
  font-style: normal;
}

.company-address span {
  color: rgba(255, 255, 255, 0.78);
}

.inquiry-form {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  padding: 24px;
  border-radius: 8px;
  background: var(--white);
  color: var(--ink);
}

label {
  display: grid;
  gap: 7px;
  font-weight: 700;
}

input,
select,
textarea {
  width: 100%;
  min-height: 44px;
  padding: 11px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  font: inherit;
}

textarea {
  resize: vertical;
}

.full {
  grid-column: 1 / -1;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding: 30px clamp(18px, 4vw, 64px);
  border-top: 1px solid var(--line);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: center;
}

.floating-whatsapp {
  position: fixed;
  right: 18px;
  bottom: 18px;
  z-index: 6;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 12px 18px;
  border-radius: 8px;
  color: var(--white);
  background: var(--green);
  box-shadow: var(--shadow);
  font-weight: 800;
  text-decoration: none;
}

@media (max-width: 1080px) {
  .hero,
  .split,
  .contact {
    grid-template-columns: 1fr;
  }

  .product-grid,
  .catalog-summary,
  .steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .hero-media img {
    height: auto;
  }
}

@media (max-width: 760px) {
  .site-header {
    flex-wrap: wrap;
    gap: 12px;
  }

  .menu-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-left: auto;
  }

  .site-nav {
    display: none;
    flex: 0 0 100%;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding-top: 10px;
  }

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

  .site-nav a {
    padding: 12px 0;
    border-top: 1px solid var(--line);
  }

  .header-cta {
    display: none;
  }

  h1 {
    font-size: 40px;
  }

  .hero {
    padding-top: 34px;
  }

  .hero-facts,
  .intro-band,
  .product-grid,
  .catalog-summary,
  .spec-list,
  .check-grid,
  .steps,
  .inquiry-form {
    grid-template-columns: 1fr;
  }

  .contact {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 430px) {
  body {
    padding-bottom: 54px;
  }

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

  .floating-whatsapp {
    width: auto;
    right: 12px;
    left: auto;
    bottom: 12px;
    min-height: 44px;
    padding: 10px 14px;
  }
}