:root {
  --ink: #15181d;
  --muted: #65717e;
  --paper: #f4f7fa;
  --white: #ffffff;
  --line: #dce4ed;
  --blue: #0074df;
  --cyan: #5ad2ff;
  --dark: #08111c;
  --steel: #2e3a46;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Arial, Helvetica, sans-serif;
}
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 74px;
  padding: 14px max(28px, calc((100vw - 1360px) / 2 + 28px));
  color: var(--white);
  background: rgba(8, 17, 28, .96);
  border-bottom: 1px solid rgba(255,255,255,.09);
}
.brand strong,
.brand span { display: block; }
.brand span {
  margin-top: 4px;
  color: #c6d2dc;
  font-size: 13px;
}
nav {
  display: flex;
  gap: 18px;
  color: #e8f1f8;
  font-size: 14px;
  white-space: nowrap;
}

.hero {
  background: var(--dark);
}
.hero img {
  width: 100%;
  min-height: calc(100vh - 74px);
  object-fit: cover;
}

.trust-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line);
  border-bottom: 1px solid var(--line);
}
.trust-strip div {
  padding: 26px 34px;
  background: var(--white);
}
.trust-strip strong,
.trust-strip span { display: block; }
.trust-strip span {
  margin-top: 8px;
  color: var(--muted);
  line-height: 1.45;
}

.section,
.packaging-section {
  padding: 82px max(32px, calc((100vw - 1320px) / 2 + 32px));
}
.section-heading {
  max-width: 860px;
  margin-bottom: 38px;
}
.eyebrow {
  margin: 0 0 14px;
  color: var(--blue);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: .08em;
  text-transform: uppercase;
}
h1,
h2,
h3 {
  margin: 0;
  line-height: 1.06;
  letter-spacing: 0;
}
h1 { font-size: 52px; }
h2 { font-size: 40px; }
.section-heading p:not(.eyebrow),
.feature-band p,
.quote-section p {
  margin: 16px 0 0;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.55;
}

.wide-image {
  width: 100%;
  display: block;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #101822;
}
.white-board {
  background: var(--white);
}

.feature-band {
  display: grid;
  grid-template-columns: minmax(0, .8fr) minmax(520px, 1fr);
  gap: 42px;
  align-items: center;
  padding: 82px max(34px, calc((100vw - 1360px) / 2 + 34px));
  color: var(--white);
  background: linear-gradient(135deg, #08111c 0%, #112941 56%, #0b1520 100%);
}
.feature-band .eyebrow {
  color: var(--cyan);
}
.feature-band p:not(.eyebrow) {
  max-width: 620px;
  color: #cbd8e2;
}
.detail-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}
.detail-list article {
  min-height: 162px;
  padding: 22px;
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.14);
  border-radius: 7px;
}
.detail-list span {
  display: block;
  color: var(--cyan);
  font-weight: 900;
  margin-bottom: 14px;
}
.detail-list strong {
  display: block;
  color: var(--white);
  font-size: 22px;
}
.detail-list p {
  margin-top: 10px;
  color: #cbd8e2;
  line-height: 1.45;
}

.detail-visual {
  background: #eef3f8;
}
.detail-image-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.detail-image-grid img {
  width: 100%;
  display: block;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #101822;
}
.detail-card {
  overflow: hidden;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 8px;
}
.detail-card img {
  aspect-ratio: 9 / 7;
  object-fit: cover;
  border: 0;
  border-radius: 0;
}
.detail-card div {
  min-height: 178px;
  padding: 24px;
}
.detail-card span {
  display: block;
  color: var(--blue);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: .08em;
}
.detail-card strong {
  display: block;
  margin-top: 10px;
  color: var(--ink);
  font-size: 24px;
}
.detail-card p {
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.5;
}

.color-options {
  background: var(--white);
}
.color-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.color-grid article {
  min-height: 184px;
  padding: 28px;
  background: #f7fafc;
  border: 1px solid var(--line);
  border-radius: 8px;
}
.color-grid strong,
.color-grid p {
  display: block;
}
.color-grid strong {
  margin-top: 18px;
  color: var(--ink);
  font-size: 28px;
}
.color-grid p {
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.5;
}
.color-dot {
  display: block;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  border: 2px solid rgba(255,255,255,.9);
  box-shadow: 0 10px 22px rgba(8,17,28,.16), inset 0 0 12px rgba(255,255,255,.32);
}
.color-dot.black {
  background: linear-gradient(135deg, #060708 0%, #25282b 52%, #060708 100%);
}
.color-dot.gold {
  background: linear-gradient(135deg, #956211 0%, #ffd44e 48%, #b47b16 100%);
}
.color-dot.blue {
  background: linear-gradient(135deg, #003b86 0%, #1185ff 48%, #002e70 100%);
}

.sizes-section {
  background: var(--white);
}
.size-layout {
  display: grid;
  grid-template-columns: minmax(340px, .52fr) minmax(0, 1fr);
  gap: 28px;
  align-items: stretch;
}
.size-visual {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 560px;
  padding: 0;
  background: #f8fbfd;
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
}
.size-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.spec-table {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
}
.spec-table dl { margin: 0; }
.spec-table dl div {
  display: grid;
  grid-template-columns: 170px 1fr;
  gap: 18px;
  padding: 18px 22px;
  border-bottom: 1px solid var(--line);
}
dt {
  color: var(--muted);
  font-weight: 800;
}
dd {
  margin: 0;
  font-weight: 900;
}
.dimension-table {
  overflow-x: auto;
  padding: 0 22px 22px;
}
.dimension-table table {
  width: 100%;
  min-width: 900px;
  border-collapse: collapse;
  font-size: 13px;
}
.dimension-table th,
.dimension-table td {
  padding: 12px 10px;
  border: 1px solid var(--line);
  text-align: left;
  vertical-align: middle;
}
.dimension-table th {
  color: var(--white);
  background: var(--steel);
  font-weight: 900;
}
.dimension-table td {
  color: var(--ink);
  background: #fafcff;
  font-weight: 700;
}

.packaging-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-bottom: 18px;
}
.packaging-grid article {
  min-height: 140px;
  padding: 24px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 8px;
}
.packaging-grid strong,
.packaging-grid span {
  display: block;
}
.packaging-grid strong {
  color: var(--ink);
  font-size: 24px;
}
.packaging-grid span {
  margin-top: 12px;
  color: var(--muted);
  line-height: 1.5;
}
.packaging-image {
  background: #08111c;
}

.quote-section {
  display: grid;
  grid-template-columns: minmax(0, .9fr) minmax(360px, .55fr);
  gap: 38px;
  align-items: center;
  padding: 76px max(34px, calc((100vw - 1320px) / 2 + 34px));
  color: var(--white);
  background: #08111c;
}
.quote-section .eyebrow {
  color: var(--cyan);
}
.quote-section p:not(.eyebrow) {
  color: #cbd8e2;
}
.quote-box {
  padding: 28px;
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.14);
  border-radius: 8px;
}
.quote-box strong {
  color: var(--cyan);
  font-size: 22px;
}

footer {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 24px max(32px, calc((100vw - 1320px) / 2 + 32px));
  color: #cbd8e2;
  background: #050a10;
}
footer strong { color: var(--white); }

@media (max-width: 1100px) {
  .feature-band,
  .size-layout,
  .quote-section {
    grid-template-columns: 1fr;
  }
  .trust-strip,
  .detail-list,
  .detail-image-grid,
  .color-grid,
  .packaging-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 760px) {
  .topbar {
    position: static;
    align-items: flex-start;
    flex-direction: column;
  }
  nav {
    width: 100%;
    overflow-x: auto;
    padding-bottom: 4px;
  }
  .hero img {
    min-height: 680px;
    object-position: 58% center;
  }
  .section,
  .feature-band,
  .packaging-section,
  .quote-section {
    padding: 58px 20px;
  }
  h1 { font-size: 38px; }
  h2 { font-size: 32px; }
  .trust-strip,
  .detail-list,
  .detail-image-grid,
  .color-grid,
  .packaging-grid {
    grid-template-columns: 1fr;
  }
  .spec-table dl div { grid-template-columns: 1fr; gap: 6px; }
  footer { flex-direction: column; }
}