:root {
  --ink: #080808;
  --paper: #f4f1ea;
  --line: rgba(255, 255, 255, 0.2);
  --acid: #d7ff45;
  --magenta: #ff47c9;
  --cyan: #43d9ff;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--ink); color: #fff; font-family: Arial, Helvetica, sans-serif; }
body.ns-light { background: var(--paper); color: #111; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button { font: inherit; }

.ns-nav {
  position: fixed;
  inset: 0 0 auto;
  z-index: 100;
  height: 50px;
  margin: 4px auto 0;
  width: min(94%, 1500px);
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  border: 1px solid #111;
  background: rgba(255, 255, 255, 0.95);
  color: #111;
  backdrop-filter: blur(16px);
}
.ns-nav > a { height: 100%; display: flex; align-items: center; padding: 0 24px; text-transform: uppercase; font-size: 12px; letter-spacing: 0.08em; }
.ns-nav > a:first-child { border-right: 1px solid #111; justify-self: start; }
.ns-nav > a:last-child { border-left: 1px solid #111; justify-self: end; }
.ns-brand { display: flex; align-items: center; gap: 5px; font-weight: 900; letter-spacing: 0.08em; }
.ns-brand img { width: 72px; height: 24px; object-fit: contain; }

.ns-series-hero {
  position: relative;
  min-height: 78vh;
  overflow: hidden;
  display: flex;
  align-items: flex-end;
  padding: 10rem clamp(1.25rem, 6vw, 7rem) 4rem;
  isolation: isolate;
}
.ns-series-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -3;
  background-image: linear-gradient(180deg, rgba(0,0,0,.12), rgba(0,0,0,.86)), var(--hero);
  background-size: cover;
  background-position: center;
  transform: scale(1.03);
}
.ns-series-hero::after {
  content: "";
  position: absolute;
  inset: -30%;
  z-index: -2;
  pointer-events: none;
}
.ns-series-hero.spectra::after {
  background: linear-gradient(105deg, transparent 35%, rgba(240,255,162,.42) 48%, rgba(255,173,45,.28) 53%, transparent 65%);
  mix-blend-mode: screen;
  animation: spectra-sweep 5.5s ease-in-out infinite;
}
.ns-series-hero.magnetic::after {
  background: repeating-conic-gradient(from 0deg at 67% 48%, transparent 0 8deg, rgba(69,216,255,.16) 9deg 10deg, transparent 11deg 20deg);
  filter: blur(3px);
  animation: magnetic-field 15s linear infinite;
}
@keyframes spectra-sweep { 0%, 22% { transform: translateX(-40%); } 70%, 100% { transform: translateX(38%); } }
@keyframes magnetic-field { to { transform: rotate(360deg); } }

.ns-eyebrow { margin: 0 0 1rem; font-size: 12px; font-weight: 800; letter-spacing: .22em; text-transform: uppercase; }
.ns-series-hero h1 { max-width: 1000px; margin: 0; font-size: clamp(3.4rem, 10vw, 9rem); font-weight: 900; line-height: .82; letter-spacing: -.075em; text-transform: uppercase; }
.ns-series-hero p { max-width: 650px; margin: 1.5rem 0 0; font-size: clamp(1rem, 1.7vw, 1.35rem); line-height: 1.5; color: rgba(255,255,255,.84); }

.ns-series-intro { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; padding: 5rem clamp(1.25rem, 6vw, 7rem); border-bottom: 1px solid var(--line); }
.ns-series-intro h2 { margin: 0; max-width: 720px; font-size: clamp(2rem, 5vw, 5rem); line-height: .98; letter-spacing: -.045em; }
.ns-series-intro p { margin: 0; max-width: 650px; align-self: end; color: rgba(255,255,255,.68); font-size: 1rem; line-height: 1.7; }

.ns-products { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); border-top: 1px solid var(--line); }
.ns-series-card { --mx: 50%; --my: 50%; position: relative; min-height: 70vh; overflow: hidden; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); isolation: isolate; }
.ns-series-card:nth-child(even) { border-right: 0; }
.ns-card-image { position: absolute; inset: 0; z-index: -3; background-image: var(--image); background-size: 200% 200%; background-position: top left; transition: transform .7s cubic-bezier(.22,1,.36,1), filter .7s ease; }
.ns-series-card::before { content: ""; position: absolute; inset: 0; z-index: -2; background: linear-gradient(180deg, rgba(0,0,0,.03), rgba(0,0,0,.82)); }
.ns-series-card::after { content: ""; position: absolute; inset: -30%; z-index: -1; opacity: 0; transition: opacity .35s ease; pointer-events: none; }
.ns-series-card.spectra::after { background: radial-gradient(circle at var(--mx) var(--my), rgba(255,247,166,.72), rgba(215,255,69,.2) 16%, transparent 42%); mix-blend-mode: screen; }
.ns-series-card.magnetic::after { background: repeating-conic-gradient(from 20deg at var(--mx) var(--my), rgba(67,217,255,.44) 0 2deg, transparent 3deg 16deg); filter: blur(6px); mix-blend-mode: screen; }
.ns-series-card:hover::after { opacity: .85; }
.ns-series-card:hover .ns-card-image { transform: scale(1.06); filter: brightness(1.08) saturate(1.08); }
.ns-card-copy { position: absolute; inset: auto 0 0; padding: 2rem; }
.ns-card-copy small { display: block; margin-bottom: .55rem; color: rgba(255,255,255,.62); font-size: 11px; font-weight: 800; letter-spacing: .18em; text-transform: uppercase; }
.ns-card-copy h3 { margin: 0; font-size: clamp(1.7rem, 3vw, 3rem); line-height: 1; letter-spacing: -.04em; }
.ns-card-copy p { display: flex; justify-content: space-between; gap: 1rem; margin: .7rem 0 0; color: rgba(255,255,255,.75); }
.ns-card-arrow { font-size: 1.6rem; }

.ns-page { min-height: 100vh; padding: 7rem clamp(1.25rem, 5vw, 5rem) 5rem; }
.ns-breadcrumbs { display: flex; flex-wrap: wrap; gap: .6rem; margin-bottom: 2rem; color: #777; font-size: 12px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; }
.ns-product-layout { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(320px, .85fr); gap: clamp(2rem, 5vw, 6rem); align-items: start; }
.ns-gallery { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; position: sticky; top: 74px; }
.ns-gallery-tile { position: relative; aspect-ratio: 1; overflow: hidden; background-image: var(--image); background-size: 200% 200%; background-repeat: no-repeat; background-color: #111; isolation: isolate; }
.ns-gallery-tile:nth-child(1) { background-position: 0 0; }
.ns-gallery-tile:nth-child(2) { background-position: 100% 0; }
.ns-gallery-tile:nth-child(3) { background-position: 0 100%; }
.ns-gallery-tile:nth-child(4) { background-position: 100% 100%; }
.ns-gallery-tile::after { content: ""; position: absolute; inset: -40%; opacity: 0; transition: opacity .25s; pointer-events: none; }
.ns-gallery.spectra .ns-gallery-tile::after { background: linear-gradient(110deg, transparent 36%, rgba(255,255,210,.65) 49%, transparent 62%); transform: translateX(-35%); }
.ns-gallery.magnetic .ns-gallery-tile::after { background: repeating-conic-gradient(from 0deg at 50% 50%, transparent 0 12deg, rgba(67,217,255,.16) 13deg 14deg, transparent 15deg 28deg); animation: magnetic-field 16s linear infinite; }
.ns-gallery-tile:hover::after { opacity: 1; }
.ns-gallery-tile span { position: absolute; left: .8rem; bottom: .75rem; padding: .4rem .55rem; background: rgba(0,0,0,.66); color: #fff; font-size: 10px; font-weight: 800; letter-spacing: .11em; text-transform: uppercase; backdrop-filter: blur(8px); }
.ns-product-info { padding-top: .75rem; }
.ns-product-info h1 { margin: 0; font-size: clamp(2.6rem, 5.7vw, 6.8rem); line-height: .88; letter-spacing: -.07em; }
.ns-product-code { margin: 1.5rem 0 .25rem; font-size: 1.25rem; font-weight: 800; }
.ns-particle { margin: 0; color: #777; }
.ns-description { margin: 2rem 0; color: #555; font-size: 1rem; line-height: 1.75; }
.ns-colour-chip { width: 100%; height: 8px; margin: 2rem 0; border-radius: 999px; background: var(--chip); box-shadow: 0 0 24px var(--chip); }
.ns-actions { display: grid; grid-template-columns: 1fr 1fr; gap: .65rem; }
.ns-button { display: flex; min-height: 52px; align-items: center; justify-content: center; border: 1px solid #111; padding: .8rem 1rem; color: #111; font-weight: 800; text-transform: uppercase; font-size: 12px; letter-spacing: .08em; transition: background .2s, color .2s, transform .2s; }
.ns-button.primary { background: #111; color: #fff; }
.ns-button:hover { transform: translateY(-2px); background: var(--acid); color: #111; }
.ns-specs { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; margin-top: 3rem; background: #ccc; border: 1px solid #ccc; }
.ns-spec { min-height: 110px; padding: 1rem; background: var(--paper); }
.ns-spec small { display: block; margin-bottom: .5rem; color: #777; font-size: 10px; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
.ns-spec strong { font-size: 14px; }
.ns-story { margin-top: 4rem; padding: 3rem 0; border-top: 1px solid #bbb; }
.ns-story h2 { margin: 0 0 1rem; font-size: clamp(2rem, 4vw, 4rem); letter-spacing: -.05em; }
.ns-story p { max-width: 780px; color: #555; line-height: 1.8; }
.ns-back { display: inline-flex; margin-top: 2rem; border-bottom: 1px solid currentColor; font-size: 12px; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }

.ns-footer { display: grid; grid-template-columns: 1fr auto; gap: 2rem; padding: 3rem clamp(1.25rem, 6vw, 7rem) 5rem; border-top: 1px solid rgba(255,255,255,.2); color: rgba(255,255,255,.72); }
.ns-footer strong { color: #fff; font-size: clamp(3rem, 8vw, 8rem); line-height: .8; letter-spacing: -.07em; }
.ns-footer div { text-align: right; line-height: 1.7; }

@media (max-width: 760px) {
  .ns-nav { width: calc(100% - 8px); }
  .ns-nav > a { padding: 0 12px; font-size: 10px; }
  .ns-series-hero { min-height: 72vh; padding-bottom: 2.5rem; }
  .ns-series-hero h1 { font-size: clamp(3.2rem, 19vw, 6rem); }
  .ns-series-intro { grid-template-columns: 1fr; padding-block: 3rem; }
  .ns-products { grid-template-columns: 1fr; }
  .ns-series-card { min-height: 62vh; border-right: 0; }
  .ns-product-layout { grid-template-columns: 1fr; }
  .ns-gallery { position: static; }
  .ns-actions { grid-template-columns: 1fr; }
  .ns-specs { grid-template-columns: 1fr; }
  .ns-footer { grid-template-columns: 1fr; }
  .ns-footer div { text-align: left; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; scroll-behavior: auto !important; }
}