:root {
  --ink: #10283b;
  --muted: #536a7c;
  --line: #b9ccda;
  --soft: #edf5f9;
  --brand: #075d91;
  --brand-2: #0879b8;
  --accent: #e48a24;
  --white: #f9fcfe;
  --max: 1240px;
}

body {
  color: var(--ink);
  background-color: #f8fbfd;
  background-image:
    linear-gradient(rgba(11, 117, 170, .035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(11, 117, 170, .035) 1px, transparent 1px);
  background-size: 28px 28px;
}

.topbar {
  background: #075d91;
  color: #f4fbff;
}

.topbar a {
  color: #fff;
}

.nav {
  background: rgba(248, 252, 254, .97);
  border-bottom: 1px solid #9eb9ca;
  box-shadow: 0 8px 26px rgba(7, 93, 145, .06);
}

.brand strong {
  color: #075d91;
  font-size: 24px;
}

.brand span {
  color: #536a7c;
}

.nav-links {
  gap: 14px;
}

.nav-links a {
  color: #17384f;
  font-size: 14px;
  font-weight: 700;
}

.nav-links a:last-child {
  padding: 10px 15px;
  border: 1px solid #075d91;
  border-radius: 3px;
  color: #075d91;
}

.page-hero {
  position: relative;
  overflow: hidden;
  color: #fff;
  border-bottom: 1px solid #9eb9ca;
  background:
    linear-gradient(90deg, rgba(5, 54, 83, .96), rgba(7, 93, 145, .86) 58%, rgba(7, 93, 145, .34)),
    url("../images/install-site-01.jpg") center / cover no-repeat;
}

.page-hero:after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: .14;
  background-image:
    linear-gradient(rgba(255, 255, 255, .28) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .28) 1px, transparent 1px);
  background-size: 28px 28px;
}

.page-hero .container {
  position: relative;
  z-index: 1;
  padding: 84px 0;
}

.page-hero h1 {
  margin-top: 14px;
  font-size: clamp(36px, 5vw, 60px);
}

.page-hero p {
  max-width: 760px;
  color: #e8f4fb;
}

.breadcrumb {
  color: #bfe4f6;
}

.section {
  padding: 80px 0;
  border-bottom: 1px solid rgba(185, 204, 218, .7);
}

.section.alt {
  background: rgba(234, 243, 248, .9);
}

.eyebrow {
  color: #0879b8;
  font-size: 12px;
}

.section-head {
  margin-bottom: 36px;
}

.section-head h2,
.content h2,
.section h2 {
  color: #073f63;
}

.btn {
  border-radius: 3px;
}

.btn.primary {
  background: #075d91;
}

.btn.primary:hover {
  background: #064b74;
}

.btn.secondary {
  border: 1px solid #075d91;
  color: #075d91;
}

.card,
.photo,
.step {
  border-radius: 3px;
}

.card {
  height: 100%;
  border-color: #b9ccda;
  box-shadow: 0 12px 28px rgba(7, 93, 145, .07);
  transition: transform .2s ease, box-shadow .2s ease;
}

.card:hover {
  transform: translateY(-3px);
  box-shadow: 0 18px 34px rgba(7, 93, 145, .13);
}

.grid-3 .card,
.grid-2 .card {
  display: flex;
  flex-direction: column;
}

.grid-3 .card > img,
.grid-2 .card > img {
  width: 100%;
  height: 250px;
  aspect-ratio: auto;
  object-fit: cover;
  object-position: center;
}

.card-body {
  flex: 1;
  padding: 22px;
}

.card h2,
.card h3 {
  color: #073f63;
}

.photo {
  border: 1px solid #b9ccda;
  box-shadow: 0 12px 28px rgba(7, 93, 145, .07);
}

.step {
  border-color: #b9ccda;
  border-left: 5px solid #0879b8;
}

.step:before {
  border-radius: 2px;
  background: #075d91;
  color: #fff;
}

.feature b {
  border-radius: 2px;
  background: #075d91;
  color: #fff;
}

.tag {
  border: 1px solid #9db8c9;
  border-radius: 2px;
  background: #f5fafc;
  color: #294e65;
}

.spec-table {
  border-color: #9eb9ca;
  background: rgba(255, 255, 255, .94);
}

.spec-table th {
  background: #075d91;
  color: #fff;
}

.spec-table td {
  color: #36566b;
}

.faq-item {
  margin-bottom: 10px;
  padding: 22px 24px;
  border: 1px solid #b9ccda;
  background: rgba(255, 255, 255, .88);
}

.faq-item h2,
.faq-item h3 {
  color: #073f63;
}

.content {
  max-width: 900px;
  padding: 42px 54px;
  border: 1px solid #c2d3df;
  background: rgba(255, 255, 255, .94);
  box-shadow: 0 16px 38px rgba(7, 93, 145, .07);
}

.content p,
.content li {
  color: #455e70;
}

.content img {
  width: 100%;
  max-height: 560px;
  object-fit: cover;
  border: 1px solid #b9ccda;
  border-radius: 3px;
}

.article-list {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.article-list a {
  height: 100%;
  padding: 24px;
  border-color: #b9ccda;
  border-radius: 3px;
  box-shadow: 0 10px 24px rgba(7, 93, 145, .05);
  transition: transform .2s ease, border-color .2s ease;
}

.article-list a:hover {
  transform: translateY(-2px);
  border-color: #0879b8;
}

.article-list h2 {
  margin: 0 0 10px;
  color: #073f63;
  font-size: 23px;
  line-height: 1.4;
}

.article-list p {
  margin: 0;
  color: #536a7c;
}

video {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  border: 1px solid #b9ccda;
  border-radius: 3px;
  background: #073f63;
}

.footer {
  border-top: 4px solid #e48a24;
  background: #073f63;
}

@media (prefers-reduced-motion: reduce) {
  .card,
  .article-list a {
    transition: none;
  }
}

@media (max-width: 900px) {
  .nav-links {
    background: #f8fcfe;
  }

  .nav-links a:last-child {
    padding: 0;
    border: 0;
  }

  .article-list {
    grid-template-columns: 1fr;
  }

  .content {
    padding: 34px;
  }
}

@media (max-width: 560px) {
  body {
    overflow-x: hidden;
  }

  .page-hero .container {
    padding: 58px 0;
  }

  .page-hero h1 {
    font-size: 34px;
    line-height: 1.25;
  }

  .page-hero p {
    font-size: 16px;
  }

  .section {
    padding: 60px 0;
  }

  .content {
    width: calc(100% - 24px);
    padding: 24px 20px;
  }

  .card-body {
    padding: 18px;
  }

  .grid-3 .card > img,
  .grid-2 .card > img {
    height: 220px;
  }
}