.device-detail-section {
  padding-top: 0;
}

.device-hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 28px;
  margin-bottom: 28px;
}

.device-panel {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: all var(--transition);
  position: relative;
}

.device-panel::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(135deg, rgba(0, 180, 216, 0.2), transparent 45%, transparent 60%, rgba(0, 180, 216, 0.05));
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
  opacity: 0.45;
}

.device-panel:hover {
  border-color: rgba(0, 180, 216, 0.25);
  box-shadow: var(--shadow-glow);
  transform: translateY(-4px);
}

.device-cover {
  min-height: 380px;
  padding: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: radial-gradient(circle at 50% 40%, rgba(0, 180, 216, 0.1) 0%, rgba(24, 40, 69, 0.95) 58%, #0c182d 100%);
}

.device-cover img {
  max-height: 360px;
  object-fit: contain;
  filter: drop-shadow(0 12px 36px rgba(0, 0, 0, 0.55));
}

.device-cover img.upload-rounded {
  width: auto;
  border-radius: 14px !important;
}

.device-overview {
  padding: 30px;
}

.device-subtitle {
  font-size: 0.84rem;
  letter-spacing: 1.4px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 10px;
}

.device-overview h2 {
  font-size: 2rem;
  line-height: 1.25;
  margin-bottom: 14px;
}

.device-overview p {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.8;
}

.device-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 20px;
}

.device-tags span {
  background: rgba(0, 180, 216, 0.08);
  border: 1px solid rgba(0, 180, 216, 0.2);
  color: var(--accent);
  border-radius: 999px;
  padding: 6px 14px;
  font-size: 0.8rem;
}

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

.device-block {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
}

.device-block h3 {
  margin-bottom: 14px;
  font-size: 1.1rem;
}

.device-list {
  display: grid;
  gap: 10px;
}

.device-list li {
  color: var(--text-muted);
  font-size: 0.92rem;
  line-height: 1.75;
  padding-left: 18px;
  position: relative;
}

.device-list li::before {
  content: '';
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 4px rgba(72, 202, 228, 0.12);
  position: absolute;
  left: 0;
  top: 0.58em;
}

.install-section {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px;
  margin-bottom: 24px;
}

.install-section h3 {
  font-size: 1.15rem;
  margin-bottom: 8px;
}

.install-section > p {
  color: var(--text-muted);
  margin-bottom: 16px;
  font-size: 0.92rem;
}

.install-group + .install-group {
  margin-top: 22px;
}

.install-group h4 {
  font-size: 0.95rem;
  color: var(--text);
  margin-bottom: 10px;
}

.install-gallery {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 14px;
}

.install-item {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: 12px;
  padding: 10px;
  overflow: hidden;
}

.install-item img {
  width: 100%;
  height: 400px;
  object-fit: cover;
  border-radius: 10px;
}

.page-action {
  margin-top: 20px;
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.btn-link-muted {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  border-radius: 50px;
  border: 1px solid var(--border);
  color: var(--text-muted);
  transition: all var(--transition);
}

.btn-link-muted:hover {
  color: var(--text);
  border-color: rgba(0, 180, 216, 0.3);
  background: rgba(0, 180, 216, 0.08);
}

.product-detail-link {
  display: flex;
  color: inherit;
  cursor: pointer;
}

.product-detail-link .detail-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--accent);
  font-size: 0.86rem;
  font-weight: 600;
  transition: gap var(--transition), color var(--transition);
}

.product-detail-link:hover .detail-link {
  gap: 14px;
  color: #8de5f5;
}

@media (max-width: 1024px) {
  .device-hero-grid,
  .device-sections {
    grid-template-columns: 1fr;
  }

  .device-cover {
    min-height: 300px;
  }

  .device-cover img {
    max-height: 270px;
  }
}

@media (max-width: 768px) {
  .device-overview {
    padding: 22px;
  }

  .device-overview h2 {
    font-size: 1.55rem;
  }

  .install-section,
  .device-block {
    padding: 20px;
  }

  .install-gallery {
    grid-template-columns: 1fr;
  }

  .install-item img {
    height: 400px;
  }
}