:root {
  --bg: #030815;
  --bg-soft: #071126;
  --surface: rgba(8, 19, 40, 0.78);
  --surface-strong: rgba(12, 27, 55, 0.92);
  --surface-alt: rgba(10, 23, 47, 0.64);
  --text: #ebf7ff;
  --muted: #99b7d9;
  --line: rgba(91, 184, 255, 0.18);
  --line-strong: rgba(91, 184, 255, 0.34);
  --accent: #56d8ff;
  --accent-2: #2f7cff;
  --accent-3: #9ff2ff;
  --success: #7cf7c4;
  --shadow: 0 25px 80px rgba(0, 0, 0, 0.42);
  --glow: 0 0 0 1px rgba(86, 216, 255, 0.14), 0 0 34px rgba(47, 124, 255, 0.22);
  --radius-xl: 30px;
  --radius-lg: 22px;
  --radius-md: 16px;
  --container: 1760px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Space Grotesk", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 15% 18%, rgba(56, 148, 255, 0.2), transparent 22%),
    radial-gradient(circle at 82% 12%, rgba(86, 216, 255, 0.16), transparent 22%),
    radial-gradient(circle at 70% 75%, rgba(47, 124, 255, 0.14), transparent 24%),
    linear-gradient(180deg, #020611 0%, #061126 48%, #030815 100%);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(rgba(90, 180, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(90, 180, 255, 0.03) 1px, transparent 1px);
  background-size: 32px 32px;
  mask-image: radial-gradient(circle at center, black 42%, transparent 88%);
}

img {
  max-width: 100%;
}

button,
input,
select {
  font: inherit;
}

.page-shell {
  width: min(var(--container), calc(100% - 40px));
  margin: 0 auto;
  padding: 14px 0 42px;
}

.sticky-header {
  position: sticky;
  top: 0;
  z-index: 20;
  padding-top: 10px;
  padding-bottom: 8px;
  border-radius: 26px;
  background: linear-gradient(180deg, rgba(4, 12, 26, 0.92), rgba(4, 12, 26, 0.72));
  backdrop-filter: blur(14px);
  border: 1px solid rgba(91, 184, 255, 0.12);
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.28);
}

.topbar,
.storefront,
.detail-hero,
.detail-panel,
.detail-loading {
  background: linear-gradient(180deg, rgba(10, 24, 48, 0.84), rgba(6, 16, 34, 0.9));
  border: 1px solid var(--line);
  box-shadow: var(--shadow), var(--glow);
  backdrop-filter: blur(18px);
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 14px 18px;
  border-radius: 22px;
  margin: 0 10px 10px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  min-width: 0;
  color: inherit;
  text-decoration: none;
}

.brand-mark {
  width: 64px;
  height: 64px;
  flex: 0 0 64px;
  display: grid;
  place-items: center;
  border-radius: 18px;
  overflow: hidden;
  background: radial-gradient(circle at center, rgba(126, 238, 255, 0.22), rgba(10, 18, 37, 0.4));
  border: 1px solid rgba(159, 242, 255, 0.28);
  box-shadow: 0 0 24px rgba(47, 124, 255, 0.2);
}

.brand-mark img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.brand-copy {
  display: grid;
  min-width: 0;
  gap: 6px;
}

.brand-copy strong {
  font-size: 1.18rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.brand-tagline {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  width: fit-content;
  max-width: 100%;
  padding: 7px 12px;
  border-radius: 999px;
  border: 1px solid rgba(159, 242, 255, 0.22);
  background: linear-gradient(135deg, rgba(86, 216, 255, 0.1), rgba(47, 124, 255, 0.16));
  color: #dff9ff;
  font-size: 0.79rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  line-height: 1.25;
  box-shadow: inset 0 0 18px rgba(86, 216, 255, 0.08);
}

.brand-tagline::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 999px;
  flex: 0 0 8px;
  background: radial-gradient(circle, #9ff2ff 0%, #56d8ff 55%, transparent 70%);
  box-shadow: 0 0 16px rgba(86, 216, 255, 0.8);
}

.topbar-nav {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.topbar-nav a {
  color: var(--text);
  text-decoration: none;
  padding: 10px 14px;
  border-radius: 999px;
  border: 1px solid transparent;
  background: rgba(255, 255, 255, 0.03);
}

.topbar-nav a:hover {
  border-color: var(--line-strong);
  background: rgba(86, 216, 255, 0.07);
}

.nav-link-icon {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.nav-link-icon img {
  width: 16px;
  height: 16px;
  display: block;
  object-fit: contain;
}

.nav-link-icon-dark {
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
}

.nav-link-icon-dark:hover {
  background: rgba(86, 216, 255, 0.07);
  border-color: var(--line-strong);
}

.nav-link-icon-dark img {
  filter: brightness(0) invert(1);
}

.storefront,
.detail-hero,
.detail-panel {
  border-radius: var(--radius-xl);
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--accent);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.22em;
  font-weight: 700;
}

.shop-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  margin-top: 18px;
}

.topbar-tools {
  display: grid;
  grid-template-columns: minmax(340px, 1.45fr) repeat(2, minmax(220px, 0.72fr));
  gap: 14px;
  padding: 0 10px 10px;
}

.field {
  display: grid;
  gap: 8px;
}

.field-search {
  min-width: 0;
}

.field label {
  font-size: 0.9rem;
  font-weight: 700;
}

.field input,
.field select {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 14px 16px;
  color: var(--text);
  background: rgba(255, 255, 255, 0.04);
  outline: none;
  transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}

.field select {
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  background-image:
    linear-gradient(45deg, transparent 50%, var(--accent-3) 50%),
    linear-gradient(135deg, var(--accent-3) 50%, transparent 50%);
  background-position:
    calc(100% - 22px) calc(50% - 3px),
    calc(100% - 16px) calc(50% - 3px);
  background-size: 6px 6px, 6px 6px;
  background-repeat: no-repeat;
  padding-right: 42px;
}

.field select option {
  color: var(--text);
  background: #081328;
}

.field input::placeholder {
  color: #7ea5cf;
}

.field input:focus,
.field select:focus {
  border-color: var(--line-strong);
  box-shadow: 0 0 0 4px rgba(86, 216, 255, 0.1);
  transform: translateY(-1px);
}

.storefront {
  padding: 30px;
  background: transparent;
  border: 0;
  box-shadow: none;
  backdrop-filter: none;
}

.catalog-header {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 28px;
  padding: 0 2px;
  border-bottom: 1px solid rgba(91, 184, 255, 0.12);
  padding-bottom: 18px;
}

.catalog-header h1 {
  margin: 0;
  font-size: clamp(2rem, 3.3vw, 3.2rem);
  line-height: 1;
  letter-spacing: -0.04em;
}

.catalog-text {
  margin: 10px 0 0;
  max-width: 62ch;
  color: var(--muted);
  line-height: 1.7;
}

.catalog-results {
  margin: 0;
  padding: 10px 14px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.04);
  white-space: nowrap;
}

.section-head,
.cart-head,
.cart-summary > div,
.cart-item-top,
.qty-controls,
.detail-price-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.section-head {
  margin-bottom: 26px;
}

.section-head h2,
.cart-head h2,
.detail-feature-box h2,
.detail-panel h2 {
  margin: 0;
}

#results-count,
.product-meta,
.product-description,
.cart-item p,
.cart-item small,
.empty-state,
.detail-description,
.detail-list,
.spec-item span,
.detail-highlight span,
.related-card span {
  color: var(--muted);
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 22px;
}

.product-card {
  display: grid;
  min-height: 100%;
  overflow: hidden;
  cursor: pointer;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(11, 27, 54, 0.92), rgba(6, 18, 37, 0.98));
  transition: transform 0.22s ease, box-shadow 0.22s ease, border-color 0.22s ease;
}

.product-card:hover {
  transform: translateY(-4px);
  border-color: var(--line-strong);
  box-shadow: 0 18px 38px rgba(8, 20, 48, 0.58);
}

.product-card:focus-visible,
.thumb-button:focus-visible,
.related-card:focus-visible,
.back-link:focus-visible,
.button:focus-visible,
.topbar-nav a:focus-visible {
  outline: 3px solid rgba(86, 216, 255, 0.34);
  outline-offset: 3px;
}

.product-cover {
  position: relative;
  min-height: 180px;
  padding: 18px;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  color: #fff;
  isolation: isolate;
}

.product-cover::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at top left, rgba(255, 255, 255, 0.22), transparent 24%),
    linear-gradient(145deg, rgba(255, 255, 255, 0.05), transparent 55%);
  z-index: 0;
}

.product-cover::after {
  content: "";
  position: absolute;
  inset: 14px;
  border-radius: 18px;
  border: 1px solid rgba(255, 255, 255, 0.26);
}

.product-code,
.product-badge {
  position: relative;
  z-index: 1;
}

.product-code {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.04em;
}

.product-badge {
  padding: 8px 11px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(8px);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.product-body {
  display: grid;
  gap: 16px;
  padding: 20px;
}

.product-meta {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  font-size: 0.88rem;
}

.product-title {
  margin: 0;
  font-size: 1.24rem;
}

.product-description {
  margin: 0;
  line-height: 1.72;
}

.product-footer {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 14px;
  margin-top: 4px;
}

.product-price,
.detail-price {
  display: block;
  font-size: 1.34rem;
  color: var(--accent-3);
}

.product-stock,
.detail-stock {
  color: var(--success);
  font-weight: 700;
}

.empty-state,
.detail-feature-box,
.detail-license-note,
.detail-highlight,
.spec-item,
.related-card {
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(12, 26, 53, 0.76), rgba(7, 19, 39, 0.9));
}

.empty-state {
  border-radius: 18px;
}
.empty-state {
  margin: 0;
}

.empty-state {
  padding: 18px;
  text-align: center;
}

.button {
  border: 1px solid transparent;
  border-radius: 999px;
  padding: 13px 18px;
  cursor: pointer;
  transition: transform 0.2s ease, opacity 0.2s ease, background 0.2s ease, border-color 0.2s ease;
}

.button:hover {
  transform: translateY(-1px);
}

.button-primary {
  color: #03101f;
  background: linear-gradient(135deg, var(--accent-3), var(--accent));
}

.button-secondary {
  color: var(--text);
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--line);
}

.button-dark {
  color: var(--text);
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(159, 242, 255, 0.16);
}

.button-block {
  width: 100%;
}

.empty-catalog {
  grid-column: 1 / -1;
  padding: 34px;
  border-radius: var(--radius-lg);
  text-align: center;
  border: 1px dashed var(--line-strong);
  color: var(--muted);
  background: linear-gradient(180deg, rgba(11, 24, 47, 0.7), rgba(6, 16, 31, 0.9));
}

.detail-shell {
  padding-top: 20px;
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 2px 0 18px;
  color: var(--accent-3);
  text-decoration: none;
  font-weight: 700;
}

.back-link::before {
  content: "<";
}

.detail-loading {
  padding: 40px;
}

.detail-page {
  display: grid;
  gap: 24px;
}

.detail-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(320px, 0.9fr);
  gap: 24px;
  padding: 24px;
}

.detail-gallery,
.detail-info,
.detail-sections,
.detail-feature-box,
.detail-highlight-grid,
.spec-grid,
.related-grid {
  display: grid;
}

.detail-gallery {
  gap: 14px;
}

.detail-main-media {
  min-height: 420px;
  overflow: hidden;
  border-radius: calc(var(--radius-xl) - 8px);
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(14, 32, 64, 0.88), rgba(7, 18, 38, 0.98));
}

.detail-main-media img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
}

.detail-thumbs {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.thumb-button {
  padding: 0;
  overflow: hidden;
  border-radius: 16px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.04);
  cursor: pointer;
  opacity: 0.78;
  transition: opacity 0.2s ease, transform 0.2s ease, border-color 0.2s ease;
}

.thumb-button:hover,
.thumb-button.is-active {
  opacity: 1;
  transform: translateY(-1px);
  border-color: var(--line-strong);
}

.thumb-button img {
  width: 100%;
  height: 108px;
  display: block;
  object-fit: cover;
}

.detail-info {
  gap: 18px;
  align-content: start;
}

.detail-title {
  margin: 0;
  font-size: clamp(2.2rem, 4vw, 4rem);
  line-height: 0.97;
  letter-spacing: -0.05em;
}

.detail-description {
  margin: 0;
  font-size: 1.02rem;
  line-height: 1.75;
}

.detail-price-row {
  padding: 16px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.detail-highlight-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.detail-highlight,
.spec-item {
  padding: 16px;
  border-radius: 18px;
}

.detail-highlight strong,
.spec-item strong {
  color: var(--text);
}

.detail-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.detail-feature-box {
  gap: 12px;
  padding: 18px;
  border-radius: 22px;
}

.detail-license-note {
  padding: 18px;
  border-radius: 22px;
}

.detail-license-note h2 {
  margin: 0 0 10px;
}

.detail-license-note p {
  margin: 0;
  color: var(--muted);
  line-height: 1.7;
}

.detail-list {
  margin: 0;
  padding-left: 18px;
  display: grid;
  gap: 10px;
}

.detail-sections {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}

.detail-panel {
  padding: 24px;
}

.spec-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.video-frame {
  overflow: hidden;
  border-radius: 22px;
  border: 1px solid var(--line);
  aspect-ratio: 16 / 9;
  background: #000;
}

.video-frame iframe {
  width: 100%;
  height: 100%;
  border: 0;
}

.related-grid {
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 14px;
}

.related-card {
  display: grid;
  gap: 12px;
  padding: 12px;
  color: inherit;
  text-decoration: none;
  border-radius: 18px;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.related-card:hover {
  transform: translateY(-2px);
  border-color: var(--line-strong);
  box-shadow: 0 14px 26px rgba(5, 16, 36, 0.42);
}

.related-card img {
  width: 100%;
  height: 150px;
  object-fit: cover;
  border-radius: 14px;
}

.related-card div {
  display: grid;
  gap: 4px;
}

@media (max-width: 1100px) {
  .detail-hero,
  .detail-sections {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 820px) {
  .topbar {
    flex-direction: column;
    align-items: stretch;
  }

  .topbar-nav {
    justify-content: flex-start;
  }

  .topbar-tools,
  .storefront,
  .detail-panel,
  .detail-hero,
  .detail-loading {
    padding: 20px;
  }

  .topbar-tools {
    grid-template-columns: 1fr;
  }

  .catalog-header {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 640px) {
  .page-shell {
    width: min(100% - 18px, var(--container));
    padding-top: 14px;
  }

  .brand {
    align-items: center;
  }

  .brand-mark {
    width: 54px;
    height: 54px;
    flex-basis: 54px;
  }

  .brand-tagline {
    width: 100%;
    font-size: 0.72rem;
    letter-spacing: 0.06em;
    padding: 7px 10px;
  }

  .topbar {
    gap: 14px;
  }

  .topbar {
    margin-inline: 0;
  }

  .topbar-tools {
    padding: 0 0 10px;
  }

  .storefront {
    padding: 20px 0 0;
  }

  .detail-actions {
    flex-direction: column;
  }

  .section-head,
  .product-footer,
  .detail-price-row {
    flex-direction: column;
    align-items: flex-start;
  }

  .product-footer .button,
  .detail-actions .button {
    width: 100%;
  }

  .product-grid,
  .detail-highlight-grid,
  .spec-grid,
  .detail-thumbs,
  .related-grid {
    grid-template-columns: 1fr;
  }

  .detail-main-media {
    min-height: 260px;
  }

  .thumb-button img {
    height: 88px;
  }
}