:root {
  --ink: #f3f3f1;
  --muted: #85858d;
  --paper: #000000;
  --panel: #080808;
  --line: #25252a;
  --cyan: #59dff1;
  --pink: #ed74c8;
  --violet: #8d6df0;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont,
    "Segoe UI", sans-serif;
  -webkit-font-smoothing: antialiased;
  color-scheme: dark;
}

a {
  color: inherit;
  text-decoration: none;
}

.site-header {
  width: min(1440px, calc(100% - 48px));
  min-height: 82px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  border-bottom: 1px solid var(--line);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  width: max-content;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.16em;
}

.brand-mark {
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  border: 1px solid #4b4b53;
  border-radius: 50%;
  font-size: 12px;
  letter-spacing: 0;
}

nav {
  display: flex;
  gap: 34px;
  font-size: 13px;
  color: #8b8b93;
}

nav a:hover {
  color: var(--ink);
}

.header-status {
  justify-self: end;
  padding: 9px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  background: #080808;
}

.hero {
  width: min(1440px, calc(100% - 48px));
  margin: 0 auto;
  padding: 56px 0 92px;
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(420px, 0.75fr);
  gap: 70px;
  align-items: center;
}

.product-visual {
  min-width: 0;
}

.image-frame {
  position: relative;
  overflow: hidden;
  border-radius: 4px;
  border: 1px solid #25252a;
  background: #050505;
  box-shadow: 0 0 72px rgba(89, 223, 241, 0.08);
}

.image-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(135deg, rgba(89, 223, 241, 0.04), transparent 42%, rgba(237, 116, 200, 0.04));
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.05);
}

.image-frame img {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.image-caption {
  display: flex;
  justify-content: space-between;
  padding-top: 14px;
  color: var(--muted);
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.eyebrow {
  margin: 0 0 14px;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: #85858d;
}

.product-copy h1 {
  margin: 0;
  max-width: 580px;
  font-size: clamp(52px, 5vw, 82px);
  line-height: 0.96;
  letter-spacing: -0.055em;
  font-weight: 720;
}

.product-type {
  margin: 24px 0 0;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 13px;
  letter-spacing: 0.05em;
  color: #b3b3ba;
}

.description {
  max-width: 570px;
  margin: 28px 0 0;
  color: #a1a1a8;
  font-size: 16px;
  line-height: 1.75;
}

.price-block {
  margin: 34px 0 26px;
  padding: 20px 0;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 20px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.price {
  font-size: 36px;
  line-height: 1;
  font-weight: 730;
  letter-spacing: -0.04em;
}

.currency {
  margin-left: 8px;
  font-size: 11px;
  font-weight: 750;
  letter-spacing: 0.14em;
}

.price-block p {
  margin: 0 0 2px;
  color: var(--muted);
  font-size: 12px;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}

.feature-card {
  min-height: 122px;
  padding: 15px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 20px;
  border: 1px solid var(--line);
  background: #050505;
}

.feature-card.featured {
  background: linear-gradient(135deg, rgba(89, 223, 241, 0.08), rgba(237, 116, 200, 0.06));
  border-color: rgba(89, 223, 241, 0.38);
}

.feature-icon {
  width: max-content;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.08em;
  color: var(--cyan);
}

.feature-card strong,
.feature-card small {
  display: block;
}

.feature-card strong {
  font-size: 13px;
}

.feature-card small {
  margin-top: 5px;
  color: var(--muted);
  font-size: 10px;
  line-height: 1.4;
}

.listing-note {
  margin-top: 18px;
  padding: 17px 18px;
  display: flex;
  align-items: flex-start;
  gap: 13px;
  border: 1px solid var(--line);
  background: var(--panel);
}

.listing-note strong {
  font-size: 13px;
}

.listing-note p {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 11px;
}

.status-dot {
  width: 8px;
  height: 8px;
  margin-top: 5px;
  flex: 0 0 auto;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 0 5px rgba(89, 223, 241, 0.1);
}

.details-section,
.value-section {
  width: min(1440px, calc(100% - 48px));
  margin: 0 auto;
  padding: 96px 0;
  border-top: 1px solid var(--line);
}

.details-section {
  display: grid;
  grid-template-columns: 0.75fr 1.25fr;
  gap: 110px;
}

.section-heading h2,
.value-copy h2 {
  margin: 0;
  font-size: clamp(38px, 4vw, 64px);
  line-height: 1;
  letter-spacing: -0.05em;
}

.section-heading > p:last-child,
.value-copy > p {
  margin: 28px 0 0;
  max-width: 540px;
  color: #9a9aa2;
  font-size: 15px;
  line-height: 1.75;
}

.spec-list {
  margin: 0;
  border-top: 1px solid var(--ink);
}

.spec-row {
  padding: 19px 0;
  display: grid;
  grid-template-columns: 0.42fr 0.58fr;
  gap: 24px;
  border-bottom: 1px solid var(--line);
}

.spec-row dt {
  color: var(--muted);
  font-size: 12px;
}

.spec-row dd {
  margin: 0;
  font-size: 13px;
  font-weight: 650;
}

.value-section {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 110px;
  align-items: end;
}

.declaration-tags {
  margin-top: 34px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.declaration-tags span {
  padding: 9px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #070707;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.summary-card {
  background: #070707;
  color: #f3f3f1;
  padding: 32px;
  border: 1px solid #2c2c31;
  box-shadow: 0 0 80px rgba(141, 109, 240, 0.06);
}

.summary-title {
  padding-bottom: 22px;
  display: flex;
  justify-content: space-between;
  border-bottom: 1px solid rgba(255, 255, 255, 0.17);
  color: #a9abb4;
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.summary-line {
  padding: 24px 0 0;
  display: flex;
  justify-content: space-between;
  gap: 30px;
  font-size: 14px;
}

.summary-line.muted {
  padding-top: 14px;
  color: #a9abb4;
  font-size: 12px;
}

.summary-total {
  margin-top: 26px;
  padding-top: 26px;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.17);
}

.summary-total span,
.summary-total small {
  display: block;
}

.summary-total span {
  font-size: 13px;
  font-weight: 700;
}

.summary-total small {
  margin-top: 6px;
  color: #8f929b;
  font-size: 10px;
}

.summary-total > strong {
  font-size: 34px;
  letter-spacing: -0.04em;
}

footer {
  width: min(1440px, calc(100% - 48px));
  margin: 0 auto;
  padding: 28px 0 42px;
  display: flex;
  justify-content: space-between;
  gap: 20px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 9px;
  font-weight: 750;
  letter-spacing: 0.12em;
}

@media (max-width: 1080px) {
  .site-header {
    grid-template-columns: 1fr auto;
  }

  nav {
    display: none;
  }

  .hero {
    grid-template-columns: 1fr;
    gap: 52px;
  }

  .product-copy {
    max-width: 720px;
  }

  .details-section,
  .value-section {
    grid-template-columns: 1fr;
    gap: 54px;
  }

  .spec-list,
  .summary-card {
    width: 100%;
  }
}

@media (max-width: 680px) {
  .site-header,
  .hero,
  .details-section,
  .value-section,
  footer {
    width: min(100% - 28px, 1440px);
  }

  .site-header {
    min-height: 70px;
  }

  .brand {
    font-size: 11px;
  }

  .header-status {
    display: none;
  }

  .hero {
    padding: 28px 0 68px;
  }

  .product-copy h1 {
    font-size: 48px;
  }

  .image-caption {
    gap: 10px;
    font-size: 8px;
  }

  .price-block {
    align-items: flex-start;
    flex-direction: column;
  }

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

  .feature-card {
    min-height: 92px;
    flex-direction: row;
    align-items: center;
  }

  .details-section,
  .value-section {
    padding: 68px 0;
  }

  .spec-row {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .summary-card {
    padding: 24px;
  }

  .summary-total {
    align-items: flex-start;
    flex-direction: column;
  }

  footer {
    flex-direction: column;
  }
}