* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  color: #102a43;
  background: #f5fafc;
}
a { color: inherit; text-decoration: none; }
.inner {
  width: min(1160px, calc(100% - 40px));
  margin: 0 auto;
}
.top {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(255, 255, 255, 0.97);
  border-bottom: 1px solid #d9e8f0;
}
.nav {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  color: #0b2744;
  font-weight: 900;
  line-height: 1.12;
  text-transform: uppercase;
}
.logo img { width: 84px; height: auto; display: block; }
.nav-links {
  display: flex;
  align-items: center;
  gap: 20px;
  color: #294967;
  font-weight: 800;
  font-size: 14px;
}
.quote {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 20px;
  background: #0b63ce;
  color: #fff;
  font-weight: 900;
}
.product-top {
  padding: 30px 0;
  background: #eef5f8;
  border-bottom: 1px solid #d9e6ef;
}
.top-grid {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: 30px;
  align-items: stretch;
}
.gallery-main {
  display: flex;
  min-height: 390px;
  padding: 22px;
  align-items: center;
  justify-content: center;
  background: #fff;
  border: 1px solid #d9e6ef;
}
.gallery-main img {
  width: 100%;
  max-height: 350px;
  object-fit: contain;
  display: block;
}
.thumb-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  margin-top: 10px;
}
.thumb-row a,
.thumb-placeholder {
  min-height: 86px;
  background: #fff;
  border: 1px solid #d9e6ef;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #587089;
  font-size: 12px;
  font-weight: 800;
  text-align: center;
}
.thumb-row img {
  width: 100%;
  height: 82px;
  object-fit: contain;
  display: block;
}
.detail-placeholder-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}
.detail-placeholder-grid div {
  min-height: 120px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 18px;
  background: #f7fbfd;
  border: 1px dashed #b9d2e5;
  color: #587089;
  font-weight: 900;
  text-align: center;
}
.detail-placeholder-grid--compact {
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  margin-top: 12px;
}
.detail-placeholder-grid--compact div {
  min-height: 78px;
  padding: 12px 8px;
  line-height: 1.35;
}
.detail-placeholder-grid--compact span {
  color: #7b8fa6;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
}
.zoomable {
  cursor: zoom-in;
}
.image-lightbox {
  position: fixed;
  inset: 0;
  z-index: 99;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 28px;
  background: rgba(5, 22, 38, 0.82);
  cursor: zoom-out;
}
.image-lightbox.active {
  display: flex;
}
.image-lightbox img {
  max-width: min(1100px, 94vw);
  max-height: 88vh;
  object-fit: contain;
  background: #fff;
  box-shadow: 0 18px 60px rgba(0, 0, 0, 0.35);
}
.summary {
  background: #fff;
  border: 1px solid #d9e6ef;
  padding: 30px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.kicker {
  margin-bottom: 12px;
  color: #0b63ce;
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
h1, h2, h3, p { margin-top: 0; }
h1 {
  margin-bottom: 16px;
  font-size: clamp(34px, 5vw, 58px);
  line-height: 1.08;
  color: #0b2744;
}
.lead {
  color: #587089;
  font-size: 18px;
  line-height: 1.65;
}
.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 18px;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  background: #22aa76;
  color: #fff;
  font-weight: 900;
}
.btn.secondary {
  background: transparent;
  color: #0b63ce;
  border: 1px solid #b9d2e5;
}
.quick-specs {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-top: 22px;
}
.spec-pill {
  padding: 14px;
  background: #f7fbfd;
  border: 1px solid #d9e6ef;
}
.spec-pill strong {
  display: block;
  font-size: 20px;
  color: #0b2744;
}
.spec-pill span {
  display: block;
  margin-top: 6px;
  color: #587089;
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
}
.section { padding: 42px 0; background: #fff; }
.section.mist { background: #eef5f8; }
.section-head {
  max-width: 760px;
  margin-bottom: 24px;
}
.section-head h2 {
  margin-bottom: 10px;
  color: #0b2744;
  font-size: clamp(26px, 3vw, 38px);
  line-height: 1.14;
}
.section-head p {
  color: #587089;
  line-height: 1.65;
  font-size: 16px;
}
.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}
.feature-card,
.panel {
  background: #fff;
  border: 1px solid #d9e6ef;
  padding: 22px;
}
.feature-card h3,
.panel h3 {
  margin-bottom: 8px;
  color: #0b2744;
  font-size: 20px;
}
.feature-card p,
.panel p,
li {
  color: #587089;
  line-height: 1.55;
}
.info-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}
table {
  width: 100%;
  border-collapse: collapse;
  background: #fff;
}
th, td {
  padding: 13px 14px;
  border-bottom: 1px solid #d9e6ef;
  text-align: left;
  vertical-align: top;
  line-height: 1.45;
}
th {
  width: 34%;
  color: #0b2744;
  background: #f7fbfd;
}
ul {
  margin: 0;
  padding-left: 20px;
}
.video-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 22px;
  align-items: stretch;
}
.video-placeholder {
  min-height: 260px;
  padding: 26px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  background: linear-gradient(135deg, #0b2744, #183a5b);
  color: #fff;
}
.video-placeholder h3 { margin-bottom: 10px; font-size: 24px; }
.video-placeholder p { margin: 0; color: #d8e8f4; }
.function-strip {
  display: grid;
  grid-template-columns: 1.45fr 0.55fr;
  gap: 18px;
  align-items: stretch;
}
.function-icons,
.fold-view {
  background: #fff;
  border: 1px solid #d9e6ef;
  padding: 18px;
}
.function-icons img,
.fold-view img {
  width: 100%;
  height: 100%;
  max-height: 230px;
  object-fit: contain;
  display: block;
}
.fold-view h3,
.function-icons h3 {
  margin-bottom: 12px;
  color: #0b2744;
  font-size: 18px;
}
.compact-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px 18px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.compact-list li {
  padding-left: 14px;
  border-left: 3px solid #22aa76;
}
.variant-table {
  overflow-x: auto;
}
.variant-table table {
  min-width: 760px;
}
.cta {
  background: #0b2744;
  color: #fff;
  padding: 34px 0;
}
.cta-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.cta h2 { margin-bottom: 8px; }
.cta p { margin: 0; color: #d8e8f4; }
@media (max-width: 900px) {
  .top-grid,
  .info-grid,
  .video-grid,
  .function-strip { grid-template-columns: 1fr; }
  .feature-grid,
  .quick-specs { grid-template-columns: repeat(2, 1fr); }
  .detail-placeholder-grid { grid-template-columns: repeat(2, 1fr); }
  .nav { align-items: flex-start; flex-direction: column; padding: 14px 0; }
  .nav-links { flex-wrap: wrap; }
}
@media (max-width: 560px) {
  .inner { width: min(100% - 28px, 1160px); }
  .summary { padding: 22px; }
  h1 { font-size: 34px; }
  .feature-grid,
  .quick-specs,
  .detail-placeholder-grid,
  .thumb-row { grid-template-columns: 1fr; }
  .cta-row { align-items: flex-start; flex-direction: column; }
}