:root {
  --primary: #22d3ee;
  --accent: #d946ef;
  --surface: #0f172a;
  --text: #f8fafc;
  --muted: rgba(226, 232, 240, 0.82);
}

* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; }
body {
  font-family: Arial, Helvetica, sans-serif;
  background: radial-gradient(circle at top, rgba(45,212,191,0.15), transparent 28%), linear-gradient(180deg, #08111f 0%, #0f172a 42%, #111827 100%);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

.shell {
  max-width: 1240px;
  margin: 0 auto;
  padding: 24px 24px 42px;
}

.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 22px 26px;
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 28px;
  background: linear-gradient(180deg, rgba(17, 25, 41, 0.82) 0%, rgba(14, 22, 37, 0.78) 100%);
  backdrop-filter: blur(18px);
}

.header-brand {
  display: flex;
  align-items: center;
  gap: 16px;
}

.header-brand > div {
  min-width: 0;
}

.brand-mark {
  width: 72px;
  height: 72px;
  border-radius: 18px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(34, 211, 238, 0.92), rgba(217, 70, 239, 0.92));
  color: #04101a;
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  box-shadow: 0 18px 42px rgba(0, 0, 0, 0.35);
}

.header-copy {
  margin-top: 10px;
  color: var(--muted);
  font-size: 0.98rem;
  line-height: 1.65;
}

.header-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
  justify-content: flex-end;
}

.eyebrow {
  font-size: 0.76rem;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: #8be9ff;
}

h1, h2, h3, p { margin: 0; }

h1 {
  margin-top: 4px;
  font-size: clamp(1.15rem, 1.35vw, 1.55rem);
  line-height: 1.12;
  letter-spacing: -0.02em;
}

.hero {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0;
  margin-top: 24px;
  padding: 30px;
  border-radius: 40px;
  border: 1px solid rgba(255,255,255,0.1);
  background: linear-gradient(135deg, rgba(17,24,39,0.94) 0%, rgba(8,47,73,0.92) 40%, rgba(9,9,11,0.94) 100%);
  box-shadow: 0 32px 100px rgba(2,6,23,0.42);
}

.hero-media {
  width: min(100%, 900px);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}

.primary-button,
.primary-button:link,
.primary-button:visited {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 0 18px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  color: #08111f;
  text-decoration: none;
  font-weight: 700;
  font-size: 0.72rem;
  box-shadow: 0 18px 38px rgba(34, 211, 238, 0.16);
}

.secondary-button,
.secondary-button:link,
.secondary-button:visited {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 0 18px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,0.18);
  background: rgba(255,255,255,0.08);
  color: var(--text);
  text-decoration: none;
  font-weight: 700;
  font-size: 0.72rem;
}

.primary-button:hover,
.secondary-button:hover,
.product-quad-card:hover,
.market-footer a:hover {
  filter: brightness(1.06);
  transform: translateY(-1px);
}

.video-kicker {
  align-self: flex-start;
  padding: 6px 12px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,0.2);
  background: rgba(255,255,255,0.1);
  font-size: 11px;
  letter-spacing: 0.28em;
  text-transform: uppercase;
}

.video-embed-shell {
  position: relative;
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border-radius: 32px;
  border: 1px solid rgba(255,255,255,0.12);
  background: #020617;
  box-shadow: 0 30px 65px rgba(2, 6, 23, 0.28);
}

.video-embed-shell iframe,
.video-embed-shell video {
  display: block;
  width: 100%;
  height: 100%;
  border: 0;
}

.video-state {
  display: grid;
  place-items: center;
  width: 100%;
  height: 100%;
  color: var(--muted);
  font-size: 0.95rem;
}

.classification-wall {
  margin-top: 24px;
  padding: 28px;
  border-radius: 32px;
  border: 1px solid rgba(255,255,255,0.08);
  background: linear-gradient(140deg, rgba(34,211,238,0.06), rgba(217,70,239,0.06));
  box-shadow: 0 24px 64px rgba(2, 8, 23, 0.45);
}

.classification-headline {
  display: flex;
  gap: 18px;
  align-items: flex-end;
  justify-content: space-between;
  flex-wrap: wrap;
}

.classification-headline h3 {
  margin-top: 14px;
  font-size: 28px;
  color: #f8fafc;
  max-width: 640px;
}

.classification-headline p {
  max-width: 420px;
  color: rgba(226, 232, 240, 0.78);
  line-height: 1.7;
  font-size: 14px;
}

.classification-grid {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 22px;
  align-items: stretch;
}

.classification-badge {
  display: inline-flex;
  flex-direction: column;
  gap: 4px;
  padding: 14px 18px;
  border-radius: 16px;
  border: 1px solid rgba(255,255,255,0.12);
  background: rgba(15, 23, 42, 0.55);
  min-width: 180px;
  transition: transform 0.18s ease, border-color 0.18s ease;
}

.classification-badge:hover {
  transform: translateY(-2px);
  border-color: rgba(34,211,238,0.55);
}

.classification-badge--tier {
  background: linear-gradient(135deg, rgba(34,211,238,0.22), rgba(15,23,42,0.55));
  border-color: rgba(34,211,238,0.45);
}

.classification-badge--spec {
  background: linear-gradient(135deg, rgba(217,70,239,0.18), rgba(15,23,42,0.55));
  border-color: rgba(217,70,239,0.35);
}

.classification-badge__kicker {
  font-size: 10px;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: rgba(226, 232, 240, 0.7);
}

.classification-badge__label {
  font-size: 18px;
  font-weight: 800;
  color: #f8fafc;
  letter-spacing: 0.01em;
}

.classification-badge__sub {
  font-size: 12px;
  color: rgba(226, 232, 240, 0.78);
  direction: rtl;
  text-align: right;
}

.classification-ids {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  margin-top: 6px;
  width: 100%;
  padding: 12px 16px;
  border-radius: 14px;
  border: 1px dashed rgba(255,255,255,0.15);
  font-size: 12px;
  color: rgba(226, 232, 240, 0.82);
  letter-spacing: 0.04em;
}

.classification-ids b {
  color: #f8fafc;
  margin-right: 6px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  font-size: 10px;
}

.classification-gate {
  flex: 1 1 100%;
  padding: 18px 20px;
  border-radius: 18px;
  border: 1px dashed rgba(252, 165, 165, 0.45);
  background: rgba(127, 29, 29, 0.18);
  color: #fca5a5;
  font-size: 14px;
  line-height: 1.6;
}

.classification-gate strong {
  color: #fecaca;
  margin-right: 6px;
}

.quad-empty {
  grid-column: 1 / -1;
  padding: 28px;
  border-radius: 24px;
  border: 1px dashed rgba(255,255,255,0.2);
  color: var(--muted);
  background: rgba(15,23,42,0.42);
  font-size: 1rem;
}

.quad-wall {
  margin-top: 24px;
  padding: 22px 22px 24px;
  border-radius: 32px;
  border: 1px solid rgba(255,255,255,0.1);
  background: radial-gradient(circle at 8% 10%, rgba(250, 204, 21, 0.18), transparent 18%), radial-gradient(circle at 88% 12%, rgba(96, 165, 250, 0.18), transparent 22%), linear-gradient(180deg, rgba(255,255,255,0.08), rgba(255,255,255,0.03));
}

.quad-headline {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 14px;
  flex-wrap: wrap;
}

.quad-headline h3 {
  margin-top: 14px;
  font-size: clamp(0.9rem, 1.4vw, 1.08rem);
}

.quad-headline p {
  max-width: 460px;
  color: var(--muted);
  line-height: 1.55;
  font-size: 0.62rem;
}

.quad-headline__actions {
  display: flex;
  align-items: center;
}

.quad-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 12px;
  margin-top: 16px;
  align-items: stretch;
}

.product-quad-card {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border-radius: 22px;
  border: 1px solid rgba(255,255,255,0.12);
  background: rgba(255,255,255,0.08);
  box-shadow: 0 20px 46px rgba(2,6,23,0.22);
  color: inherit;
  text-decoration: none;
  min-height: 100%;
  max-width: 100%;
  transition: transform 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
}

.product-quad-card:hover {
  border-color: rgba(255,255,255,0.24);
  box-shadow: 0 28px 54px rgba(2,6,23,0.28);
}

.product-quad-card__media {
  aspect-ratio: 1 / 1;
  overflow: hidden;
  background: linear-gradient(145deg, rgba(23, 167, 216, 0.18), rgba(15, 26, 42, 0.95));
}

.product-quad-card__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center center;
}

.product-quad-card__placeholder {
  display: grid;
  place-items: center;
  width: 100%;
  height: 100%;
  color: rgba(255,255,255,0.84);
  font-size: 1.3rem;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.product-quad-card__body {
  display: flex;
  flex: 1 1 auto;
  flex-direction: column;
  padding: 12px 12px 14px;
}

.product-quad-card__meta {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  color: rgba(226, 232, 240, 0.72);
  font-size: 0.52rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.product-quad-card h3 {
  margin-top: 10px;
  font-size: 0.72rem;
  line-height: 1.28;
}

.product-quad-card p {
  margin-top: 8px;
  color: var(--muted);
  font-size: 0.6rem;
  line-height: 1.5;
}

.product-quad-card__footer {
  margin-top: auto;
  padding-top: 12px;
  color: #8be9ff;
  font-size: 0.54rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.news-wall {
  margin-top: 24px;
  padding: 26px 28px;
  border-radius: 32px;
  border: 1px solid rgba(255,255,255,0.1);
  background: rgba(255,255,255,0.05);
}

.news-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 18px;
}

.news-card {
  padding: 20px;
  border-radius: 24px;
  border: 1px solid rgba(255,255,255,0.1);
  background: linear-gradient(180deg, rgba(255,255,255,0.08) 0%, rgba(255,255,255,0.03) 100%);
}

.news-kicker {
  font-size: 0.74rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted);
}

.news-card h3 {
  margin-top: 16px;
  font-size: 1.12rem;
}

.news-card p {
  margin-top: 12px;
  line-height: 1.65;
  color: var(--muted);
  font-size: 0.92rem;
}

.market-footer {
  margin-top: 24px;
  border-radius: 32px;
  border: 1px solid rgba(255,255,255,0.1);
  background: rgba(255,255,255,0.05);
}

.market-footer__body {
  padding: 34px 30px 28px;
}

.market-footer__inner {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr 0.8fr 0.8fr;
  gap: 24px;
}

.market-footer__brand-header {
  display: flex;
  align-items: center;
  gap: 14px;
}

.market-footer__logo {
  display: inline-flex;
  width: 52px;
  height: 52px;
  align-items: center;
  justify-content: center;
  border-radius: 16px;
  background: linear-gradient(135deg, #143867 0%, #285b9a 100%);
  font-weight: 800;
}

.market-footer__copy,
.market-footer__subcopy {
  margin-top: 14px;
  color: var(--muted);
  line-height: 1.7;
}

.market-footer__eyebrow,
.market-footer__title,
.market-footer a {
  color: #f8fbff;
}

.market-footer__links,
.market-footer__list,
.market-footer__bottom-meta,
.market-footer__institutional-meta {
  display: flex;
  gap: 10px;
}

.market-footer__links,
.market-footer__list {
  flex-direction: column;
  margin-top: 14px;
}

.market-footer__bottom {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  margin-top: 26px;
  padding-top: 22px;
  border-top: 1px solid rgba(255,255,255,0.1);
}

.market-footer__bottom-meta {
  flex-wrap: wrap;
  justify-content: flex-end;
}

.market-footer__institutional {
  margin-top: 22px;
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.65;
}

.market-footer__institutional-meta {
  flex-wrap: wrap;
  margin-top: 10px;
  color: rgba(226, 232, 240, 0.68);
}

.locale-switcher {
  display: inline-flex;
  gap: 6px;
}

.locale-switcher button {
  border: 1px solid rgba(255,255,255,0.18);
  background: rgba(255,255,255,0.08);
  color: #f8fafc;
  padding: 8px 14px;
  border-radius: 999px;
  cursor: pointer;
}

.locale-switcher button[aria-pressed=true] {
  background: linear-gradient(135deg, #6366f1, #4f46e5);
  border-color: transparent;
}

[dir=rtl] { font-family: Tahoma, Arial, sans-serif; }
[dir=rtl] .header-actions,
[dir=rtl] .market-footer__bottom-meta { flex-direction: row-reverse; }
[dir=rtl] .classification-headline,
[dir=rtl] .quad-headline,
[dir=rtl] .hero { text-align: right; }

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

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

  .quad-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (max-width: 720px) {
  .shell { padding: 16px; }
  .header,
  .hero,
  .classification-wall,
  .quad-wall,
  .news-wall,
  .market-footer__body { padding: 18px; }
  .quad-grid { grid-template-columns: 1fr; }
  .header-actions { width: 100%; }
  .primary-button,
  .secondary-button { width: 100%; }
  .quad-headline__actions { width: 100%; }
}
.product-detail__category {
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.78rem;
}

.product-detail__facts {
  margin-top: 18px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.product-detail__facts div {
  padding: 14px 16px;
  border-radius: 18px;
  background: rgba(97, 211, 255, 0.08);
  border: 1px solid rgba(97, 211, 255, 0.12);
}

.product-detail__facts dt {
  color: var(--muted);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.product-detail__facts dd { margin-top: 8px; font-weight: 800; }
.product-detail__cta { margin-top: 18px; }
.state-card { padding: 28px; color: var(--muted); line-height: 1.75; }

@media (max-width: 1080px) {
  .hero-panel,
  .catalog-layout {
    grid-template-columns: 1fr;
  }
  .seller-header {
    flex-direction: column;
    align-items: stretch;
  }
  .seller-header__actions {
    justify-content: flex-start;
  }
}

@media (max-width: 720px) {
  .seller-shell {
    width: min(100vw - 20px, 1380px);
    padding-top: 14px;
  }
  .seller-header,
  .hero-panel,
  .catalog-layout__list,
  .catalog-layout__detail {
    padding: 18px;
    border-radius: 24px;
  }
  .seller-header__mark {
    width: 66px;
    height: 66px;
    border-radius: 18px;
    font-size: 1.25rem;
  }
  .seller-facts,
  .product-grid,
  .product-detail__facts {
    grid-template-columns: 1fr;
  }
  .section-head {
    flex-direction: column;
    align-items: flex-start;
  }
  .section-head p {
    max-width: none;
  }
}