/* Gradient series: calm surfaces, clear selection and accessible focus.
   Scoped to this collection; product photography and live price hooks stay intact. */
.gradient-series-page {
  --gradient-hairline: rgba(255, 255, 255, .08);
  --gradient-separator: rgba(255, 255, 255, .06);
  --gradient-panel-radius: 28px;
}

.gradient-series-page :is(
  .gradient-series-products, .gradient-curtain-feature,
  .gradient-interaction-lab, .gradient-nature-lab, .gradient-matter-section
) { border-color: var(--gradient-separator); }

/* The old card background nested a gradient inside a color stop, which made
   the entire declaration invalid and left dark titles on a transparent card. */
.gradient-series-page .gradient-series-grid .product-card,
.gradient-series-page .gradient-series-grid .product-card:hover {
  background: #fff;
  border: 1px solid rgba(255, 255, 255, .18);
  border-radius: var(--gradient-panel-radius);
  color: #1d1d1f;
  box-shadow: 0 12px 32px rgba(0, 0, 0, .16);
  transform: none;
  transition: transform .25s ease-out, box-shadow .25s ease-out;
}
.gradient-series-page .gradient-series-grid .product-card::before,
.gradient-series-page .gradient-series-grid .product-card::after {
  content: none;
}
.gradient-series-page .gradient-series-grid .product-card > .product-image-frame {
  background: #fff;
  border: 0;
  border-radius: 20px;
  box-shadow: none;
}
.gradient-series-page .gradient-series-grid .product-series-badge {
  border: 0;
  padding: 6px 10px;
  background: #f5f5f7;
  color: #6e6e73;
}
.gradient-series-page .gradient-series-grid .partner-brand-mark {
  border-color: rgba(0, 0, 0, .05);
  box-shadow: 0 3px 12px rgba(0, 0, 0, .05);
}
.gradient-series-page .gradient-series-grid .product-card h3 {
  color: #1d1d1f;
}
.gradient-series-page .gradient-series-grid .product-card :is(.category, .retail-compact),
.gradient-series-page .gradient-series-grid .product-card > p {
  color: #6e6e73;
}
.gradient-series-page .gradient-series-grid .retail-compact strong {
  color: #1d1d1f;
}
.gradient-series-page .gradient-series-grid [data-dealer-price-label] {
  color: #6e6e73;
  opacity: 1;
}
.gradient-series-page .gradient-series-grid .retail-compact [data-dealer-price-original] {
  color: #86868b;
}
.gradient-series-page .gradient-series-grid .product-card-actions {
  min-height: 44px;
  gap: 16px;
}
.gradient-series-page .gradient-series-grid .product-card .product-learn {
  min-height: 44px;
  background: #0071e3;
  color: #fff;
}
.gradient-series-page .gradient-series-grid .product-card .product-purchase-action {
  min-height: 44px;
  min-width: 44px;
  color: #0066cc;
}
@media (hover: hover) and (pointer: fine) {
  .gradient-series-page .gradient-series-grid .product-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 18px 40px rgba(0, 0, 0, .24);
  }
}

/* One quiet edge per surface, instead of nested colored rings. */
.gradient-series-page :is(
  .gradient-system-grid article, .gradient-room-stage, .gradient-lab-controls,
  .gradient-nature-stage, .gradient-nature-controls, .gradient-nature-editorial-copy,
  .gradient-matter-grid article, .gradient-matter-statement, .gradient-series-note-box
) {
  border: 1px solid var(--gradient-hairline);
  border-radius: var(--gradient-panel-radius);
  box-shadow: none;
}
.gradient-series-page :is(.gradient-system-grid article, .gradient-matter-grid article)::after {
  opacity: .22;
}
.gradient-series-page .gradient-room-screen {
  border-color: rgba(255, 255, 255, .16);
  box-shadow: 0 18px 44px rgba(0, 0, 0, .36),
    0 0 calc(24px + var(--room-energy) * 36px) hsl(var(--room-hue) 92% 60% / .28);
}
.gradient-series-page .gradient-room-screen-visual { border-radius: 8px; }
.gradient-series-page .gradient-room-device-row span {
  border: 0;
  background: rgba(255, 255, 255, .08);
}
.gradient-series-page :is(.gradient-lab-readouts, .gradient-nature-readout, .gradient-nature-photo-story) {
  border-color: var(--gradient-hairline);
}
.gradient-series-page .gradient-nature-poster {
  border: 0;
  border-radius: var(--gradient-panel-radius);
  box-shadow: none;
}
.gradient-series-page .gradient-nature-poster-metrics {
  border-color: rgba(255, 255, 255, .16);
}
.gradient-series-page .gradient-matter-mark {
  border: 0;
  background: rgba(167, 119, 255, .12);
  box-shadow: none;
}

/* Filled selection is independent of the animated scene colors. */
.gradient-series-page :is(.gradient-scene-tabs, .gradient-nature-tabs) button {
  min-height: 44px;
  border: 1px solid rgba(255, 255, 255, .08);
  border-radius: 12px;
  background: rgba(255, 255, 255, .045);
  color: #c7c7cc;
  box-shadow: none;
  transition: background .2s ease-out, color .2s ease-out, border-color .2s ease-out;
}
.gradient-series-page :is(.gradient-scene-tabs, .gradient-nature-tabs) button:hover {
  border-color: rgba(255, 255, 255, .16);
  background: rgba(255, 255, 255, .09);
  color: #fff;
}
.gradient-series-page :is(.gradient-scene-tabs, .gradient-nature-tabs) button.is-active {
  border-color: transparent;
  background: #f5f5f7;
  color: #1d1d1f;
  font-weight: 600;
  box-shadow: 0 2px 6px rgba(0, 0, 0, .14);
}
.gradient-series-page .gradient-range-label output { color: #f5f5f7; }
.gradient-series-page .gradient-range {
  height: 6px;
  background: linear-gradient(90deg, #63d8f1, #8d98ee 52%, #d699d3);
}
.gradient-series-page .gradient-range::-webkit-slider-thumb {
  width: 20px;
  height: 20px;
  border: 1px solid rgba(0, 0, 0, .12);
  background: #fff;
  box-shadow: 0 1px 5px rgba(0, 0, 0, .28);
}
.gradient-series-page .gradient-range::-moz-range-thumb {
  width: 18px;
  height: 18px;
  border: 1px solid rgba(0, 0, 0, .12);
  border-radius: 50%;
  background: #fff;
  box-shadow: 0 1px 5px rgba(0, 0, 0, .28);
}
.gradient-series-page .gradient-nature-palette span {
  border: 1px solid rgba(255, 255, 255, .16);
  box-shadow: none;
}
.gradient-series-page .gradient-nature-photo,
.gradient-series-page .gradient-nature-photo:hover,
.gradient-series-page .gradient-nature-photo:focus-visible {
  border: 1px solid var(--gradient-hairline);
  border-radius: 22px;
  box-shadow: none;
  transform: none;
}
.gradient-series-page .gradient-nature-photo::after {
  border-radius: inherit;
  box-shadow: none;
  transition: box-shadow .2s ease-out;
}
.gradient-series-page .gradient-nature-photo.is-active::after {
  box-shadow: inset 0 0 0 2px rgba(245, 245, 247, .85);
}
.gradient-series-page .gradient-nature-photo.is-active::before {
  content: "";
  position: absolute;
  top: 14px;
  right: 14px;
  z-index: 2;
  display: grid;
  place-items: center;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: #f5f5f7 url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 16 16'%3E%3Cpath d='m3.5 8 3 3 6-7' fill='none' stroke='%231d1d1f' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center / 16px no-repeat;
  color: #1d1d1f;
  font-size: 15px;
  font-weight: 600;
  box-shadow: 0 2px 8px rgba(0, 0, 0, .16);
}

/* Process rows share one rounded surface and only the necessary separators. */
.gradient-series-page :is(.gradient-interaction-flow, .gradient-nature-flow) {
  gap: 0;
  overflow: hidden;
  border: 0;
  border-radius: 24px;
  background: rgba(255, 255, 255, .035);
}
.gradient-series-page :is(.gradient-interaction-flow, .gradient-nature-flow) > div {
  background: none;
}
.gradient-series-page :is(.gradient-interaction-flow, .gradient-nature-flow) > div + div {
  border-left: 1px solid var(--gradient-hairline);
}

/* Focus is a separate cue; do not remove it with decorative outlines. */
.gradient-series-page :is(a, button, input, [role="button"]):focus-visible {
  outline: 3px solid #b4d8ff;
  outline-offset: 4px;
}
.gradient-series-page .gradient-series-grid :is(a, [role="button"]):focus-visible {
  outline-color: #0071e3;
}
@media (max-width: 700px) {
  .gradient-series-page { --gradient-panel-radius: 24px; }
  .gradient-series-page :is(.gradient-interaction-flow, .gradient-nature-flow) > div + div {
    border-left: 0;
    border-top: 1px solid var(--gradient-hairline);
  }
}
@media (prefers-reduced-motion: reduce) {
  .gradient-series-page .gradient-series-grid .product-card,
  .gradient-series-page :is(.gradient-scene-tabs, .gradient-nature-tabs) button,
  .gradient-series-page .gradient-nature-photo::after { transition: none; }
  .gradient-series-page .gradient-series-grid .product-card:hover { transform: none; }
}
@media (forced-colors: active) {
  .gradient-series-page :is(.gradient-scene-tabs, .gradient-nature-tabs) button.is-active {
    border-color: Highlight;
    outline: 2px solid Highlight;
    outline-offset: -4px;
  }
  .gradient-series-page .gradient-nature-photo.is-active { border: 3px solid Highlight; }
}