:root {
  --ink: #10212b;
  --muted: #5c6b72;
  --line: #d8e6e8;
  --soft: #edf7f7;
  --panel: #ffffff;
  --aqua: #27b7c6;
  --aqua-dark: #087987;
  --navy: #123247;
  --sand: #f6f2ea;
  --shadow: 0 24px 60px rgba(18, 50, 71, 0.12);
}

* {
  box-sizing: border-box;
}

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

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

a {
  color: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(14px);
}

.nav {
  width: min(1180px, calc(100% - 36px));
  margin: 0 auto;
  min-height: 74px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.brand-logo {
  width: 176px;
  height: 48px;
  object-fit: contain;
  object-position: left center;
}

.brand-fallback {
  display: none;
  font-weight: 800;
  letter-spacing: 0.04em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 700;
}

.nav-links a {
  padding: 10px 12px;
  border-radius: 999px;
  text-decoration: none;
  color: #203944;
}

.nav-links a:hover,
.nav-links a.active {
  background: var(--soft);
  color: var(--aqua-dark);
}

.shell {
  width: min(1180px, calc(100% - 36px));
  margin: 0 auto;
}

.hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(circle at 78% 18%, rgba(39, 183, 198, 0.18), transparent 28%),
    linear-gradient(115deg, #f8ffff 0%, #eefafa 54%, #f6f2ea 100%);
  border-bottom: 1px solid var(--line);
}

.hero-grid {
  min-height: 640px;
  display: grid;
  grid-template-columns: 1.04fr 0.96fr;
  align-items: center;
  gap: 44px;
  padding: 78px 0 64px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--aqua-dark);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  margin: 0;
  line-height: 1.08;
}

h1 {
  max-width: 720px;
  font-size: clamp(42px, 6vw, 78px);
  letter-spacing: 0;
}

h2 {
  font-size: clamp(30px, 4vw, 48px);
}

h3 {
  font-size: 22px;
}

.lead {
  max-width: 620px;
  margin: 22px 0 0;
  color: #425762;
  font-size: 18px;
}

.hero-actions,
.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.button {
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  justify-content: center;
  padding: 12px 18px;
  border: 1px solid var(--navy);
  border-radius: 6px;
  background: var(--navy);
  color: #fff;
  font-weight: 800;
  text-decoration: none;
}

.button.secondary {
  background: transparent;
  color: var(--navy);
}

.button.light {
  border-color: #fff;
  background: #fff;
  color: var(--navy);
}

.hero-board {
  position: relative;
  min-height: 420px;
  padding: 26px;
  border: 1px solid rgba(8, 121, 135, 0.22);
  border-radius: 30px 6px 30px 6px;
  background: rgba(255, 255, 255, 0.62);
  box-shadow: var(--shadow);
}

.hero-board img {
  width: 100%;
  height: 290px;
  object-fit: contain;
}

.metric-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  overflow: hidden;
  margin-top: 20px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--line);
}

.metric {
  min-height: 88px;
  padding: 16px;
  background: #fff;
}

.metric strong {
  display: block;
  font-size: 22px;
}

.metric span {
  color: var(--muted);
  font-size: 13px;
}

.section {
  padding: 74px 0;
}

.section.alt {
  background: #f3f9f9;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.section-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 32px;
}

.section-head p {
  max-width: 560px;
  margin: 0;
  color: var(--muted);
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.product-card {
  display: grid;
  min-height: 100%;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--panel);
  text-decoration: none;
  box-shadow: 0 8px 24px rgba(18, 50, 71, 0.06);
}

.product-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 18px 34px rgba(18, 50, 71, 0.12);
}

.product-card img {
  width: 100%;
  height: 250px;
  object-fit: cover;
  background: #fff;
}

.product-body {
  padding: 22px;
}

.tag {
  display: inline-flex;
  width: fit-content;
  margin-bottom: 12px;
  padding: 5px 9px;
  border-radius: 999px;
  background: #e6f7f8;
  color: var(--aqua-dark);
  font-size: 12px;
  font-weight: 800;
}

.price {
  margin-top: 16px;
  color: var(--navy);
  font-size: 22px;
  font-weight: 900;
}

.text-link {
  display: inline-flex;
  margin-top: 14px;
  color: var(--aqua-dark);
  font-weight: 900;
}

.feature-band {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border: 1px solid var(--line);
  border-radius: 24px;
  background: #fff;
  box-shadow: var(--shadow);
}

.feature {
  padding: 30px;
  border-right: 1px solid var(--line);
}

.feature:last-child {
  border-right: 0;
}

.feature-number {
  display: block;
  margin-bottom: 18px;
  color: var(--aqua);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0.14em;
}

.page-hero {
  padding: 72px 0 46px;
  background: linear-gradient(135deg, #f8ffff, #edf7f7);
  border-bottom: 1px solid var(--line);
}

.page-hero p {
  max-width: 680px;
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 18px;
}

.split {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: 42px;
  align-items: start;
}

.copy p {
  color: var(--muted);
  font-size: 17px;
}

.info-panel {
  border: 1px solid var(--line);
  border-radius: 20px;
  background: #fff;
  padding: 28px;
  box-shadow: var(--shadow);
}

.info-list {
  display: grid;
  gap: 12px;
  margin: 20px 0 0;
}

.info-list div {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
}

.info-list span {
  color: var(--muted);
}

.catalog-list {
  display: grid;
  gap: 20px;
}

.catalog-row {
  display: grid;
  grid-template-columns: 260px 1fr auto;
  gap: 24px;
  align-items: center;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: #fff;
  text-decoration: none;
  box-shadow: 0 8px 24px rgba(18, 50, 71, 0.06);
}

.catalog-row img {
  width: 260px;
  height: 170px;
  border-radius: 14px;
  object-fit: cover;
}

.catalog-row p {
  margin: 10px 0 0;
  color: var(--muted);
}

.catalog-price {
  min-width: 135px;
  text-align: right;
  font-size: 22px;
  font-weight: 900;
}

.detail-wrap {
  display: grid;
  grid-template-columns: 1.04fr 0.96fr;
  gap: 52px;
  align-items: start;
  padding: 64px 0;
}

.detail-media {
  position: sticky;
  top: 98px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 26px;
  background: #fff;
  box-shadow: var(--shadow);
}

.detail-media img {
  width: 100%;
  height: 520px;
  object-fit: cover;
}

.detail-panel .tag {
  margin-bottom: 16px;
}

.detail-panel h1 {
  font-size: clamp(38px, 5vw, 64px);
}

.detail-panel .lead {
  font-size: 18px;
}

.model-box {
  margin: 28px 0 22px;
  border: 1px solid var(--navy);
  border-radius: 12px;
  background: #fff;
}

.model-line {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 18px;
  border-bottom: 1px solid var(--line);
  font-weight: 900;
}

.model-line:last-child {
  border-bottom: 0;
}

.detail-price {
  margin: 0 0 22px;
  font-size: 32px;
  font-weight: 900;
}

.contact-box {
  margin: 24px 0;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: #fff;
}

.specs {
  display: grid;
  gap: 12px;
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
}

.specs li {
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
}

.cta-band {
  padding: 46px 0;
  background: var(--navy);
  color: #fff;
}

.cta-band .shell {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.cta-band p {
  margin: 10px 0 0;
  color: rgba(255, 255, 255, 0.75);
}

.contact-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 28px;
}

.contact-card {
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: #fff;
}

.contact-card a {
  color: var(--aqua-dark);
  font-weight: 800;
}

.policy {
  max-width: 820px;
}

.policy h2 {
  margin-top: 34px;
  font-size: 26px;
}

.site-footer {
  border-top: 1px solid var(--line);
  background: #f8fbfb;
}

.footer-grid {
  width: min(1180px, calc(100% - 36px));
  margin: 0 auto;
  padding: 34px 0;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 24px;
  color: var(--muted);
  font-size: 14px;
}

.footer-links {
  display: flex;
  gap: 16px;
}

@media (max-width: 900px) {
  .nav {
    align-items: flex-start;
    flex-direction: column;
    padding: 14px 0;
  }

  .nav-links {
    width: 100%;
    overflow-x: auto;
    padding-bottom: 2px;
  }

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

  .hero-grid {
    min-height: auto;
    padding: 48px 0;
  }

  .detail-media {
    position: static;
  }

  .detail-media img {
    height: auto;
    max-height: 520px;
    object-fit: contain;
  }

  .product-grid,
  .feature-band {
    grid-template-columns: 1fr;
  }

  .feature {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .feature:last-child {
    border-bottom: 0;
  }

  .catalog-row {
    grid-template-columns: 1fr;
  }

  .catalog-row img {
    width: 100%;
    height: auto;
  }

  .catalog-price {
    text-align: left;
  }

  .cta-band .shell,
  .section-head,
  .footer-grid {
    align-items: flex-start;
    flex-direction: column;
    display: flex;
  }
}

@media (max-width: 560px) {
  .shell,
  .nav,
  .footer-grid {
    width: min(100% - 24px, 1180px);
  }

  .brand-logo {
    width: 148px;
  }

  h1 {
    font-size: 40px;
  }

  .hero-board {
    min-height: auto;
    padding: 18px;
    border-radius: 20px 6px;
  }

  .hero-board img {
    height: auto;
  }

  .metric-strip {
    grid-template-columns: 1fr;
  }

  .product-card img {
    height: 220px;
  }
}