/* ══════════════════════════════════════════════════════════════
   PRODUCTS PAGE — Premium Styles
   Full-bleed product showcases, spec grids, navigation
   ══════════════════════════════════════════════════════════════ */

/* ─── PRODUCT HERO ─── */
.product-hero {
  position: relative;
  min-height: 56vh;
  display: flex;
  align-items: flex-end;
  padding: calc(var(--header-h) + 60px) 0 64px;
  overflow: hidden;
}
.product-hero-visual {
  position: absolute;
  inset: 0;
}
.product-hero-photo {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 45%;
}
.product-hero-overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(6,10,16,.45) 0%, rgba(6,10,16,.65) 40%, rgba(6,10,16,.96) 100%),
    linear-gradient(90deg, rgba(6,10,16,.7) 0%, transparent 50%);
}
.product-hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(56,189,248,.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(56,189,248,.03) 1px, transparent 1px);
  background-size: 80px 80px;
  animation: gridDrift 40s linear infinite;
}
.product-hero-content {
  position: relative;
  z-index: 3;
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 32px;
  width: 100%;
}
.product-hero-title {
  font: 800 clamp(32px, 4.5vw, 56px)/1.08 var(--ff);
  color: var(--white);
  letter-spacing: -.03em;
  margin-bottom: 16px;
}
.product-hero-title em {
  font-style: normal;
  background: linear-gradient(135deg, var(--cyan) 0%, #818cf8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.product-hero-sub {
  font: 400 15px/1.75 var(--ff);
  color: var(--text);
  max-width: 540px;
  border-left: 2px solid rgba(56,189,248,.2);
  padding-left: 20px;
}
.product-hero-metrics {
  display: flex;
  gap: 0;
  border: 1px solid var(--border);
  border-radius: 4px;
  overflow: hidden;
  max-width: 520px;
  background: rgba(6,10,16,.6);
  backdrop-filter: blur(12px);
  margin-top: 32px;
}
.product-hero-metrics .metric {
  flex: 1;
  padding: 18px 16px;
  text-align: center;
  border-right: 1px solid var(--border);
  transition: background .3s;
}
.product-hero-metrics .metric:last-child { border-right: 0; }
.product-hero-metrics .metric:hover { background: rgba(56,189,248,.04); }

/* ─── PRODUCT NAV (sticky tab bar) ─── */
.product-nav {
  position: sticky;
  top: var(--header-h);
  z-index: 900;
  background: rgba(6,10,16,.88);
  backdrop-filter: blur(20px) saturate(1.4);
  -webkit-backdrop-filter: blur(20px) saturate(1.4);
  border-bottom: 1px solid var(--border);
  padding: 0;
}
.product-nav-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 32px;
  display: flex;
  align-items: center;
  gap: 0;
}
.product-nav-link {
  font: 600 11px/1 var(--mono);
  letter-spacing: 1.8px;
  text-transform: uppercase;
  color: var(--text-dim);
  padding: 20px 28px;
  position: relative;
  transition: color .3s;
  white-space: nowrap;
}
.product-nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--cyan);
  transform: scaleX(0);
  transition: transform .3s;
}
.product-nav-link:hover,
.product-nav-link.active {
  color: var(--white);
}
.product-nav-link.active::after {
  transform: scaleX(1);
}
.product-nav-back {
  font: 500 11px/1 var(--mono);
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--text-dim);
  display: flex;
  align-items: center;
  gap: 8px;
  margin-right: auto;
  padding: 20px 0;
  transition: color .3s;
}
.product-nav-back:hover { color: var(--cyan); }
.product-nav-back svg {
  width: 14px;
  height: 14px;
  stroke: currentColor;
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

/* ─── PRODUCT SECTION (each model) ─── */
.product-section {
  position: relative;
  padding: 100px 0;
  overflow: hidden;
  border-bottom: 1px solid var(--border);
}
.product-section:nth-child(even) {
  background: var(--bg-card);
}
.product-section-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .06;
  filter: grayscale(.5);
}
.product-section-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, var(--bg) 0%, rgba(6,10,16,.92) 50%, var(--bg) 100%);
}

/* ─── PRODUCT LAYOUT ─── */
.product-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
  position: relative;
  z-index: 2;
}
.product-layout.reverse {
  direction: rtl;
}
.product-layout.reverse > * {
  direction: ltr;
}

/* Product Image */
.product-img-container {
  position: relative;
  border-radius: 10px;
  overflow: hidden;
}
.product-img-container img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 10px;
  transition: transform .6s cubic-bezier(.25,.46,.45,.94);
}
.product-img-container:hover img {
  transform: scale(1.04);
}
.product-img-border {
  position: absolute;
  inset: 0;
  border: 1px solid var(--border);
  border-radius: 10px;
  pointer-events: none;
  transition: border-color .4s;
}
.product-img-container:hover .product-img-border {
  border-color: var(--border-h);
}
.product-env-badge {
  position: absolute;
  top: 16px;
  left: 16px;
  font: 600 9px/1 var(--mono);
  letter-spacing: 1.8px;
  text-transform: uppercase;
  color: var(--bg);
  background: var(--cyan);
  padding: 7px 14px;
  border-radius: 3px;
  z-index: 2;
}

/* Product Info */
.product-info {
  position: relative;
}
.product-model-tag {
  font: 600 10px/1 var(--mono);
  letter-spacing: 2.5px;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 12px;
  display: block;
}
.product-title {
  font: 800 clamp(28px, 3.5vw, 42px)/1.12 var(--ff);
  color: var(--white);
  letter-spacing: -.02em;
  margin-bottom: 18px;
}
.product-desc {
  font: 400 15px/1.75 var(--ff);
  color: var(--text);
  margin-bottom: 28px;
  max-width: 480px;
}
.product-deployment {
  font: 500 13px/1.5 var(--ff);
  color: var(--amber);
  font-style: italic;
  padding: 14px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  margin-bottom: 28px;
}

/* ─── SPEC GRID ─── */
.spec-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-bottom: 32px;
}
.spec-card {
  background: rgba(10,16,24,.6);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 18px 16px;
  transition: all .3s;
}
.spec-card:hover {
  border-color: var(--border-h);
  background: rgba(56,189,248,.03);
}
.spec-card-icon {
  width: 32px;
  height: 32px;
  border-radius: 6px;
  background: var(--cyan-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 10px;
}
.spec-card-icon svg {
  width: 16px;
  height: 16px;
  stroke: var(--cyan);
  fill: none;
  stroke-width: 1.5;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.spec-card-label {
  font: 400 10px/1 var(--mono);
  color: var(--text-dim);
  letter-spacing: 1.5px;
  text-transform: uppercase;
  margin-bottom: 4px;
}
.spec-card-val {
  font: 700 15px/1.2 var(--ff);
  color: var(--white);
}

/* ─── FEATURE LIST ─── */
.product-features {
  list-style: none;
  padding: 0;
  margin: 0 0 28px;
}
.product-features li {
  font: 400 13px/1.6 var(--ff);
  color: var(--text);
  padding: 10px 0 10px 28px;
  position: relative;
  border-bottom: 1px solid rgba(56,189,248,.05);
}
.product-features li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 16px;
  width: 10px;
  height: 10px;
  border-radius: 2px;
  border: 2px solid var(--cyan);
  opacity: .6;
}
.product-features li:hover::before {
  background: var(--cyan);
  opacity: 1;
}

/* ─── PRODUCT CTA ─── */
.product-cta-row {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

/* ─── COMPARISON BANNER ─── */
.products-comparison {
  padding: 80px 0;
  background: linear-gradient(180deg, var(--bg-card), var(--bg));
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  position: relative;
}
.comparison-header {
  text-align: center;
  margin-bottom: 48px;
}
.comparison-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.comparison-col {
  background: var(--bg-glass);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 32px 24px;
  text-align: center;
  backdrop-filter: blur(12px);
  transition: all .4s;
  position: relative;
}
.comparison-col:hover {
  border-color: var(--border-h);
  transform: translateY(-6px);
  box-shadow: 0 16px 48px rgba(0,0,0,.3);
}
.comparison-col.featured {
  border-color: rgba(56,189,248,.3);
  box-shadow: 0 0 30px rgba(56,189,248,.06);
}
.comparison-col.featured:hover {
  border-color: var(--cyan);
}
.comparison-col-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  font: 600 9px/1 var(--mono);
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--bg);
  background: var(--cyan);
  padding: 5px 14px;
  border-radius: 3px;
  white-space: nowrap;
}
.comparison-model-name {
  font: 700 20px/1.2 var(--ff);
  color: var(--white);
  margin-bottom: 6px;
}
.comparison-model-env {
  font: 400 11px/1 var(--mono);
  color: var(--text-dim);
  letter-spacing: 1.5px;
  text-transform: uppercase;
  margin-bottom: 20px;
}
.comparison-stat {
  padding: 14px 0;
  border-top: 1px solid var(--border);
}
.comparison-stat-val {
  font: 700 22px/1 var(--mono);
  color: var(--cyan);
  margin-bottom: 4px;
}
.comparison-stat-label {
  font: 400 10px/1 var(--mono);
  color: var(--text-dim);
  letter-spacing: 1.5px;
  text-transform: uppercase;
}

/* ─── FINAL CTA ─── */
.products-final-cta {
  padding: 100px 0;
  position: relative;
}

/* ─── RESPONSIVE ─── */
@media (max-width: 1024px) {
  .product-layout {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .product-layout.reverse {
    direction: ltr;
  }
  .comparison-grid {
    grid-template-columns: 1fr;
    max-width: 420px;
    margin: 0 auto;
  }
  .product-nav-inner {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }
  .product-hero-metrics {
    flex-wrap: wrap;
  }
  .product-hero-metrics .metric {
    min-width: 45%;
  }
}
@media (max-width: 768px) {
  .product-section {
    padding: 72px 0;
  }
  .spec-grid {
    grid-template-columns: 1fr;
  }
  .product-hero {
    min-height: 42vh;
  }
  .product-nav-link {
    padding: 16px 18px;
    font-size: 10px;
  }
}