/* NORKENZO — Layout 56 Typography Showcase */
:root {
  --ink: #111110;
  --paper: #f4f1ec;
  --paper-dim: #e8e4dc;
  --accent: #c41e3a;
  --accent-soft: rgba(196, 30, 58, 0.12);
  --muted: #6b6760;
  --line: rgba(17, 17, 16, 0.14);
  --shadow: 0 24px 60px rgba(17, 17, 16, 0.12);
  --shadow-deep: 0 40px 100px rgba(17, 17, 16, 0.18);
  --font-serif: 'Cormorant Garamond', 'Noto Serif JP', Georgia, serif;
  --font-sans: 'DM Sans', 'Noto Sans JP', sans-serif;
  --rail-w: 52px;
  --head-h: 72px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font-sans);
  background: var(--paper);
  color: var(--ink);
  line-height: 1.65;
  overflow-x: hidden;
  padding-left: var(--rail-w);
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; color: inherit; }
address { font-style: normal; }

.nk-micro {
  font-size: 0.6875rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 500;
}

.nk-display {
  font-family: var(--font-serif);
  font-weight: 700;
  line-height: 0.95;
  letter-spacing: -0.02em;
}
.nk-display--hero { font-size: clamp(3.5rem, 11vw, 9rem); }
.nk-display--md { font-size: clamp(2.2rem, 5vw, 4rem); margin-bottom: 1rem; }
.nk-display__line { display: block; }
.nk-display__line--ghost {
  color: transparent;
  -webkit-text-stroke: 1px var(--ink);
  opacity: 0.35;
}
.nk-display__line--accent { color: var(--accent); font-style: italic; }

.nk-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.85rem 1.75rem;
  font-size: 0.8125rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-weight: 500;
  border: 1px solid var(--ink);
  transition: all 0.35s var(--ease);
  cursor: pointer;
  background: transparent;
}
.nk-btn--fill { background: var(--ink); color: var(--paper); }
.nk-btn--fill:hover { background: var(--accent); border-color: var(--accent); }
.nk-btn--line:hover { background: var(--ink); color: var(--paper); }
.nk-btn--wide { width: 100%; }

.nk-link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8125rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border-bottom: 1px solid var(--ink);
  padding-bottom: 0.25rem;
  transition: gap 0.3s var(--ease);
}
.nk-link-arrow:hover { gap: 1rem; color: var(--accent); border-color: var(--accent); }

/* Rail */
.nk-rail {
  position: fixed;
  left: 0;
  top: 0;
  bottom: 0;
  width: var(--rail-w);
  background: var(--ink);
  color: var(--paper);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem 0;
  font-size: 0.625rem;
  letter-spacing: 0.3em;
  writing-mode: vertical-rl;
  z-index: 900;
}
.nk-rail span { opacity: 0.5; }
.nk-rail span:first-child { opacity: 1; font-weight: 700; }

/* Header */
.nk-head {
  position: sticky;
  top: 0;
  z-index: 800;
  background: rgba(244, 241, 236, 0.88);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
  transition: box-shadow 0.3s;
}
.nk-head.is-scrolled { box-shadow: var(--shadow); }
.nk-head__inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 2rem;
  height: var(--head-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}
.nk-mark { display: flex; align-items: baseline; gap: 0.15rem; }
.nk-mark__glyph {
  font-family: var(--font-serif);
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
}
.nk-mark__word {
  font-size: 0.875rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  font-weight: 500;
}
.nk-head__nav { display: flex; gap: 2rem; }
.nk-head__nav a {
  font-size: 0.8125rem;
  letter-spacing: 0.08em;
  position: relative;
  padding: 0.25rem 0;
}
.nk-head__nav a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 1px;
  background: var(--accent);
  transition: width 0.3s var(--ease);
}
.nk-head__nav a:hover::after,
.nk-head__nav a.is-on::after { width: 100%; }
.nk-head__nav a.is-on { color: var(--accent); }
.nk-head__actions { display: flex; align-items: center; gap: 0.75rem; }
.nk-icon-btn {
  position: relative;
  width: 40px;
  height: 40px;
  border: 1px solid var(--line);
  background: transparent;
  display: grid;
  place-items: center;
  cursor: pointer;
  transition: all 0.25s;
}
.nk-icon-btn:hover { border-color: var(--ink); background: var(--paper-dim); }
.nk-icon-btn em {
  position: absolute;
  top: -4px;
  right: -4px;
  width: 18px;
  height: 18px;
  background: var(--accent);
  color: #fff;
  font-size: 0.625rem;
  font-style: normal;
  border-radius: 50%;
  display: grid;
  place-items: center;
}
.nk-burger {
  display: none;
  flex-direction: column;
  gap: 6px;
  width: 40px;
  height: 40px;
  border: none;
  background: none;
  cursor: pointer;
  justify-content: center;
  align-items: center;
}
.nk-burger i {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--ink);
  transition: transform 0.3s;
}
.nk-burger.is-open i:first-child { transform: translateY(3.75px) rotate(45deg); }
.nk-burger.is-open i:last-child { transform: translateY(-3.75px) rotate(-45deg); }

/* Search overlay */
.nk-search {
  position: fixed;
  inset: 0;
  background: rgba(17, 17, 16, 0.6);
  z-index: 950;
  display: grid;
  place-items: center;
  padding: 2rem;
  opacity: 0;
  visibility: hidden;
  transition: all 0.35s;
}
.nk-search.is-open { opacity: 1; visibility: visible; }
.nk-search__panel {
  background: var(--paper);
  width: min(560px, 100%);
  padding: 3rem;
  box-shadow: var(--shadow-deep);
  position: relative;
}
.nk-search__close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  border: none;
  background: none;
  font-size: 2rem;
  line-height: 1;
  cursor: pointer;
}
.nk-search__panel input {
  width: 100%;
  border: none;
  border-bottom: 2px solid var(--ink);
  background: transparent;
  padding: 1rem 0;
  font-family: var(--font-serif);
  font-size: 2rem;
  margin: 1.5rem 0;
  outline: none;
}
.nk-search__hints { list-style: none; }
.nk-search__hints li {
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--line);
  cursor: pointer;
  font-size: 0.9375rem;
}
.nk-search__hints li:hover { color: var(--accent); }

/* Reveal */
.nk-reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
}
.nk-reveal.is-visible { opacity: 1; transform: none; }

/* §1 Type hero */
.nk-type-hero {
  min-height: calc(100vh - var(--head-h));
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 3rem;
  padding: 4rem 2rem 6rem;
  max-width: 1280px;
  margin: 0 auto;
  align-items: end;
}
.nk-type-hero__issue { margin-bottom: 2rem; }
.nk-type-hero__lead {
  max-width: 28rem;
  margin: 2rem 0 2.5rem;
  font-size: 1.0625rem;
  color: var(--muted);
}
.nk-type-hero__cta { display: flex; flex-wrap: wrap; gap: 1rem; }
.nk-type-hero__aside {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  align-items: flex-end;
  padding-bottom: 1rem;
}
.nk-vertical {
  writing-mode: vertical-rl;
  font-size: 0.625rem;
  letter-spacing: 0.35em;
  color: var(--muted);
}
.nk-type-hero__meta {
  margin-top: 3rem;
  text-align: right;
}
.nk-type-hero__meta div { margin-bottom: 1.25rem; }
.nk-type-hero__meta dt {
  font-size: 0.625rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted);
}
.nk-type-hero__meta dd {
  font-family: var(--font-serif);
  font-size: 1.75rem;
  font-weight: 600;
}

/* Section head */
.nk-section-head {
  max-width: 1280px;
  margin: 0 auto 3rem;
  padding: 0 2rem;
}
.nk-section-head--split {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  flex-wrap: wrap;
  gap: 1rem;
}

/* §2 Specimen */
.nk-specimen {
  padding: 6rem 2rem;
  background: var(--ink);
  color: var(--paper);
}
.nk-specimen .nk-section-head p { color: rgba(244, 241, 236, 0.6); }
.nk-specimen__stage {
  max-width: 1280px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 4rem;
  align-items: center;
}
.nk-specimen__preview {
  min-height: 320px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
  border-left: 3px solid var(--accent);
  padding-left: 2rem;
}
.nk-specimen__sample {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 6rem;
  line-height: 1;
  letter-spacing: 0.12em;
  transition: all 0.2s;
}
.nk-specimen__kanji {
  font-family: var(--font-serif);
  font-size: 4rem;
  opacity: 0.25;
  margin-top: 0.5rem;
}
.nk-specimen__ctrl {
  display: grid;
  grid-template-columns: 80px 1fr 60px;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.25rem;
  font-size: 0.8125rem;
}
.nk-specimen__ctrl input[type="range"] {
  width: 100%;
  accent-color: var(--accent);
}
.nk-specimen__ctrl output { text-align: right; font-variant-numeric: tabular-nums; }
.nk-specimen__models { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 1.5rem; }
.nk-specimen__pick {
  padding: 0.4rem 0.85rem;
  border: 1px solid rgba(244, 241, 236, 0.3);
  background: transparent;
  color: var(--paper);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  cursor: pointer;
  transition: all 0.25s;
}
.nk-specimen__pick:hover,
.nk-specimen__pick.is-active { background: var(--accent); border-color: var(--accent); }

/* §3 Skew band */
.nk-skew-band { overflow: hidden; padding: 6rem 0 0; }
.nk-skew-band__cut {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 0;
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 2rem;
  align-items: center;
}
.nk-skew-band__text {
  padding: 3rem 3rem 3rem 0;
  transform: translateX(-2rem);
}
.nk-skew-band__text p:last-of-type { color: var(--muted); margin-top: 1.5rem; max-width: 22rem; }
.nk-skew-band__frame {
  transform: skewY(-4deg) translateY(1rem);
  box-shadow: var(--shadow-deep);
  overflow: hidden;
  border: 1px solid var(--line);
}
.nk-skew-band__frame img {
  transform: skewY(4deg) scale(1.08);
  width: 100%;
  object-fit: cover;
  aspect-ratio: 4/3;
}
.nk-skew-band__marquee {
  margin-top: 4rem;
  background: var(--accent);
  color: #fff;
  padding: 1rem 0;
  display: flex;
  overflow: hidden;
  white-space: nowrap;
}
.nk-skew-band__marquee span {
  animation: nk-marquee 22s linear infinite;
  font-family: var(--font-serif);
  font-size: 1.25rem;
  letter-spacing: 0.15em;
  padding-right: 4rem;
}
@keyframes nk-marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-100%); }
}

/* §4 Story */
.nk-story {
  max-width: 1280px;
  margin: 0 auto;
  padding: 7rem 2rem;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 5rem;
  align-items: start;
}
.nk-story__body p { margin-bottom: 1.25rem; color: var(--muted); }
.nk-story__body p:first-child { color: var(--ink); font-size: 1.125rem; }
.nk-story__visual {
  position: relative;
  margin-top: 4rem;
  box-shadow: var(--shadow);
}
.nk-story__visual figcaption {
  position: absolute;
  bottom: -2rem;
  right: 0;
}

/* §5 Parade */
.nk-parade { padding: 6rem 0; background: var(--paper-dim); }
.nk-parade__track {
  display: flex;
  gap: 2rem;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  padding: 2rem;
  scrollbar-width: thin;
}
.nk-parade__item {
  flex: 0 0 min(340px, 80vw);
  scroll-snap-align: start;
  background: var(--paper);
  padding: 2rem;
  box-shadow: var(--shadow);
  transition: transform 0.35s var(--ease);
}
.nk-parade__item:hover { transform: translateY(-8px); }
.nk-parade__idx { font-size: 0.625rem; letter-spacing: 0.2em; color: var(--muted); }
.nk-parade__name {
  font-family: var(--font-serif);
  font-size: 3rem;
  font-weight: 700;
  line-height: 1;
  margin: 0.5rem 0;
}
.nk-parade__kanji {
  font-family: var(--font-serif);
  font-size: 2.5rem;
  color: var(--accent);
  opacity: 0.7;
  display: block;
  margin-bottom: 0.5rem;
}
.nk-parade__item img {
  margin-top: 1.5rem;
  width: 100%;
  aspect-ratio: 16/10;
  object-fit: cover;
  filter: grayscale(20%);
  transition: filter 0.4s;
}
.nk-parade__item:hover img { filter: none; }

/* §6 Journey */
.nk-journey {
  max-width: 900px;
  margin: 0 auto;
  padding: 7rem 2rem;
}
.nk-journey__list {
  list-style: none;
  margin-top: 3rem;
  border-top: 1px solid var(--line);
}
.nk-journey__list li {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 2rem;
  padding: 2.5rem 0;
  border-bottom: 1px solid var(--line);
  align-items: start;
}
.nk-journey__num {
  font-family: var(--font-serif);
  font-size: 2.5rem;
  color: var(--accent);
  opacity: 0.6;
}
.nk-journey__list h3 {
  font-family: var(--font-serif);
  font-size: 1.75rem;
  margin-bottom: 0.5rem;
}
.nk-journey__list p { color: var(--muted); font-size: 0.9375rem; }

/* §7 Numbers */
.nk-numbers {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 480px;
  background: var(--ink);
  color: var(--paper);
}
.nk-numbers__pin {
  padding: 5rem 3rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.nk-numbers__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  margin-top: 2rem;
}
.nk-numbers__val {
  font-family: var(--font-serif);
  font-size: clamp(3rem, 6vw, 5rem);
  font-weight: 700;
  line-height: 1;
  display: block;
}
.nk-numbers__label {
  font-size: 0.6875rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  opacity: 0.55;
  margin-top: 0.5rem;
  display: block;
}
.nk-numbers__img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(40%);
}

/* §8 Quotes */
.nk-quotes {
  max-width: 900px;
  margin: 0 auto;
  padding: 7rem 2rem;
  text-align: center;
}
.nk-quotes__slider { position: relative; min-height: 200px; }
.nk-quotes__slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transform: translateY(16px);
  transition: all 0.6s var(--ease);
}
.nk-quotes__slide.is-active {
  position: relative;
  opacity: 1;
  transform: none;
}
.nk-quotes__text {
  font-family: var(--font-serif);
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  line-height: 1.35;
  font-style: italic;
  margin-bottom: 2rem;
}
.nk-quotes__slide footer { font-size: 0.8125rem; color: var(--muted); letter-spacing: 0.05em; }
.nk-quotes__nav { display: flex; justify-content: center; gap: 0.75rem; margin-top: 2rem; }
.nk-quotes__dot {
  width: 32px;
  height: 3px;
  border: none;
  background: var(--line);
  cursor: pointer;
  transition: background 0.3s;
}
.nk-quotes__dot.is-on { background: var(--accent); }

/* §9 Convert */
.nk-convert {
  background: var(--accent-soft);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 5rem 2rem;
}
.nk-convert__inner {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}
.nk-convert__copy p:last-child { color: var(--muted); margin-top: 1rem; }
.nk-convert__form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  background: var(--paper);
  padding: 2.5rem;
  box-shadow: var(--shadow);
}
.nk-convert__form label span { display: block; margin-bottom: 0.35rem; }
.nk-convert__form input,
.nk-convert__form select {
  width: 100%;
  border: 1px solid var(--line);
  background: transparent;
  padding: 0.85rem 1rem;
  outline: none;
  transition: border-color 0.25s;
}
.nk-convert__form input:focus,
.nk-convert__form select:focus { border-color: var(--accent); }

/* §10 Closer */
.nk-closer {
  max-width: 1280px;
  margin: 0 auto;
  padding: 7rem 2rem;
}
.nk-closer__grid {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 4rem;
  align-items: center;
}
.nk-closer__text p { color: var(--muted); margin: 1.5rem 0; }
.nk-closer__news {
  display: flex;
  gap: 0;
  margin: 2rem 0;
  border: 1px solid var(--line);
}
.nk-closer__news input {
  flex: 1;
  border: none;
  background: transparent;
  padding: 0.85rem 1rem;
  outline: none;
}
.nk-closer__news .nk-btn { border: none; border-left: 1px solid var(--line); }
.nk-closer__links {
  display: flex;
  gap: 2rem;
  font-size: 0.8125rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.nk-closer__links a:hover { color: var(--accent); }

/* Inner pages */
.nk-page-hero {
  padding: 5rem 2rem 3rem;
  max-width: 1280px;
  margin: 0 auto;
  border-bottom: 1px solid var(--line);
}
.nk-page-hero h1 {
  font-family: var(--font-serif);
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 700;
  line-height: 1;
  margin: 0.75rem 0 1rem;
}
.nk-page-hero p { color: var(--muted); max-width: 36rem; }

.nk-content {
  max-width: 1280px;
  margin: 0 auto;
  padding: 4rem 2rem 6rem;
}

/* About */
.nk-about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  margin-bottom: 5rem;
}
.nk-about-grid img { box-shadow: var(--shadow); }
.nk-timeline {
  border-left: 2px solid var(--accent);
  padding-left: 2rem;
  margin: 3rem 0;
}
.nk-timeline__item {
  position: relative;
  padding-bottom: 2.5rem;
}
.nk-timeline__item::before {
  content: '';
  position: absolute;
  left: calc(-2rem - 5px);
  top: 0.4rem;
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 50%;
}
.nk-timeline__year {
  font-family: var(--font-serif);
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent);
}
.nk-values {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin: 4rem 0;
}
.nk-values__item {
  padding: 2rem;
  border: 1px solid var(--line);
  transition: box-shadow 0.3s;
}
.nk-values__item:hover { box-shadow: var(--shadow); }
.nk-values__item h3 {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  margin: 0.75rem 0;
}

/* Services */
.nk-shop-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 3rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--line);
}
.nk-filter {
  padding: 0.5rem 1.25rem;
  border: 1px solid var(--line);
  background: transparent;
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  cursor: pointer;
  transition: all 0.25s;
}
.nk-filter.is-active,
.nk-filter:hover { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.nk-shop-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 2rem;
}
.nk-product {
  display: flex;
  flex-direction: column;
  background: var(--paper);
  border: 1px solid var(--line);
  transition: box-shadow 0.35s, transform 0.35s;
}
.nk-product:hover { box-shadow: var(--shadow); transform: translateY(-4px); }
.nk-product__img { overflow: hidden; aspect-ratio: 16/10; }
.nk-product__img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s var(--ease);
}
.nk-product:hover .nk-product__img img { transform: scale(1.04); }
.nk-product__body { padding: 1.5rem; flex: 1; display: flex; flex-direction: column; }
.nk-product__tag {
  font-size: 0.625rem;
  letter-spacing: 0.2em;
  color: var(--accent);
  margin-bottom: 0.5rem;
}
.nk-product__name {
  font-family: var(--font-serif);
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
}
.nk-product__type { font-size: 0.8125rem; color: var(--muted); margin-bottom: 1rem; }
.nk-product__specs {
  display: flex;
  gap: 1.5rem;
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  margin-bottom: 1.25rem;
  color: var(--muted);
}
.nk-product__foot {
  margin-top: auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 1rem;
  border-top: 1px solid var(--line);
}
.nk-product__price {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 600;
}

/* FAQ */
.nk-faq-intro { max-width: 640px; margin-bottom: 3rem; color: var(--muted); }
.nk-faq-group { margin-bottom: 3rem; }
.nk-faq-group h2 {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  margin-bottom: 1.5rem;
  padding-bottom: 0.75rem;
  border-bottom: 2px solid var(--ink);
}
.nk-accordion__item { border-bottom: 1px solid var(--line); }
.nk-accordion__btn {
  width: 100%;
  text-align: left;
  padding: 1.25rem 0;
  border: none;
  background: none;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  font-family: var(--font-serif);
  font-size: 1.125rem;
  transition: color 0.25s;
}
.nk-accordion__btn:hover { color: var(--accent); }
.nk-accordion__btn span {
  font-size: 1.5rem;
  transition: transform 0.3s;
  flex-shrink: 0;
}
.nk-accordion__item.is-open .nk-accordion__btn span { transform: rotate(45deg); }
.nk-accordion__panel {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s var(--ease);
}
.nk-accordion__panel-inner {
  padding: 0 0 1.5rem;
  color: var(--muted);
  font-size: 0.9375rem;
  line-height: 1.75;
}
.nk-faq-cta {
  margin-top: 4rem;
  padding: 3rem;
  background: var(--ink);
  color: var(--paper);
  text-align: center;
}
.nk-faq-cta h2 {
  font-family: var(--font-serif);
  font-size: 2rem;
  margin: 0.75rem 0 1rem;
}
.nk-faq-cta .nk-btn { margin-top: 1.5rem; border-color: var(--paper); color: var(--paper); }
.nk-faq-cta .nk-btn:hover { background: var(--accent); border-color: var(--accent); }

/* Contact */
.nk-contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 4rem;
}
.nk-contact-info h2 {
  font-family: var(--font-serif);
  font-size: 1.75rem;
  margin: 2rem 0 1rem;
}
.nk-contact-info p,
.nk-contact-info address { color: var(--muted); line-height: 1.8; }
.nk-contact-info a:hover { color: var(--accent); }
.nk-contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}
.nk-contact-form label span { display: block; margin-bottom: 0.35rem; }
.nk-contact-form input,
.nk-contact-form textarea,
.nk-contact-form select {
  width: 100%;
  border: 1px solid var(--line);
  background: transparent;
  padding: 0.85rem 1rem;
  outline: none;
}
.nk-contact-form textarea { min-height: 140px; resize: vertical; }
.nk-map {
  margin-top: 4rem;
  aspect-ratio: 21/9;
  background: var(--paper-dim);
  border: 1px solid var(--line);
  display: grid;
  place-items: center;
  color: var(--muted);
  font-size: 0.875rem;
}

/* Cart */
.nk-cart-layout {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 3rem;
  align-items: start;
}
.nk-cart-item {
  display: grid;
  grid-template-columns: 120px 1fr auto;
  gap: 1.5rem;
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--line);
  align-items: center;
}
.nk-cart-item img {
  width: 120px;
  aspect-ratio: 16/10;
  object-fit: cover;
}
.nk-cart-item h3 {
  font-family: var(--font-serif);
  font-size: 1.25rem;
}
.nk-cart-item p { font-size: 0.8125rem; color: var(--muted); }
.nk-qty {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 0.75rem;
}
.nk-qty button {
  width: 32px;
  height: 32px;
  border: 1px solid var(--line);
  background: transparent;
  cursor: pointer;
}
.nk-qty input {
  width: 48px;
  text-align: center;
  border: 1px solid var(--line);
  padding: 0.35rem;
}
.nk-cart-summary {
  background: var(--paper-dim);
  padding: 2rem;
  position: sticky;
  top: calc(var(--head-h) + 1rem);
}
.nk-cart-summary h2 {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  margin-bottom: 1.5rem;
}
.nk-cart-row {
  display: flex;
  justify-content: space-between;
  padding: 0.5rem 0;
  font-size: 0.9375rem;
}
.nk-cart-row--total {
  border-top: 2px solid var(--ink);
  margin-top: 1rem;
  padding-top: 1rem;
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 600;
}
.nk-coupon {
  display: flex;
  gap: 0;
  margin: 1.5rem 0;
  border: 1px solid var(--line);
}
.nk-coupon input {
  flex: 1;
  border: none;
  background: var(--paper);
  padding: 0.75rem;
  outline: none;
}
.nk-coupon button {
  padding: 0.75rem 1rem;
  border: none;
  background: var(--ink);
  color: var(--paper);
  cursor: pointer;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
}
.nk-cart-empty {
  text-align: center;
  padding: 4rem 2rem;
}
.nk-cart-empty h2 {
  font-family: var(--font-serif);
  font-size: 2rem;
  margin: 1rem 0;
}

/* Legal */
.nk-legal {
  max-width: 780px;
  margin: 0 auto;
  padding: 4rem 2rem 6rem;
}
.nk-legal h1 {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: 0.5rem;
}
.nk-legal .nk-legal-meta {
  color: var(--muted);
  font-size: 0.875rem;
  margin-bottom: 3rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--line);
}
.nk-legal h2 {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  margin: 2.5rem 0 1rem;
}
.nk-legal h3 {
  font-size: 1rem;
  font-weight: 600;
  margin: 1.5rem 0 0.75rem;
}
.nk-legal p,
.nk-legal li {
  color: var(--muted);
  font-size: 0.9375rem;
  line-height: 1.8;
  margin-bottom: 1rem;
}
.nk-legal ul { padding-left: 1.5rem; margin-bottom: 1rem; }

/* Footer */
.nk-foot {
  background: var(--ink);
  color: var(--paper);
  padding: 4rem 2rem 0;
  margin-top: 2rem;
}
.nk-foot__top {
  max-width: 1280px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 4rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid rgba(244, 241, 236, 0.12);
}
.nk-foot__mega {
  font-family: var(--font-serif);
  font-size: clamp(3rem, 8vw, 6rem);
  font-weight: 700;
  line-height: 0.9;
  opacity: 0.15;
  margin-bottom: 1rem;
}
.nk-foot__tag { opacity: 0.7; margin-bottom: 1.5rem; font-size: 0.9375rem; }
.nk-foot address { opacity: 0.55; font-size: 0.875rem; line-height: 1.9; }
.nk-foot address a:hover { color: var(--accent); }
.nk-foot__cols {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}
.nk-foot__cols h4 {
  font-size: 0.6875rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin-bottom: 1.25rem;
  opacity: 0.5;
}
.nk-foot__cols ul { list-style: none; }
.nk-foot__cols li { margin-bottom: 0.6rem; }
.nk-foot__cols a { opacity: 0.75; font-size: 0.875rem; transition: opacity 0.25s; }
.nk-foot__cols a:hover { opacity: 1; color: var(--accent); }
.nk-foot__cols p { opacity: 0.55; font-size: 0.875rem; line-height: 1.7; }
.nk-foot__bar {
  max-width: 1280px;
  margin: 0 auto;
  padding: 1.25rem 0;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.75rem;
  opacity: 0.4;
}
.nk-foot__mono { letter-spacing: 0.08em; }

/* Back to top */
.nk-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 44px;
  height: 44px;
  border: 1px solid var(--ink);
  background: var(--paper);
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s;
  z-index: 700;
  font-size: 1rem;
}
.nk-top.is-visible { opacity: 1; visibility: visible; }
.nk-top:hover { background: var(--accent); border-color: var(--accent); color: #fff; }

/* Responsive */
@media (max-width: 1024px) {
  .nk-type-hero,
  .nk-specimen__stage,
  .nk-skew-band__cut,
  .nk-story,
  .nk-numbers,
  .nk-convert__inner,
  .nk-closer__grid,
  .nk-about-grid,
  .nk-contact-grid,
  .nk-cart-layout { grid-template-columns: 1fr; }
  .nk-foot__top { grid-template-columns: 1fr; }
  .nk-values { grid-template-columns: 1fr; }
  .nk-skew-band__text { transform: none; padding: 0 0 2rem; }
  .nk-type-hero__aside { flex-direction: row; align-items: center; gap: 2rem; }
  .nk-vertical { writing-mode: horizontal-tb; }
}

@media (max-width: 768px) {
  body { padding-left: 0; }
  .nk-rail { display: none; }
  .nk-head__nav {
    position: fixed;
    top: var(--head-h);
    left: 0;
    right: 0;
    background: var(--paper);
    flex-direction: column;
    padding: 2rem;
    gap: 1.5rem;
    border-bottom: 1px solid var(--line);
    transform: translateY(-120%);
    opacity: 0;
    visibility: hidden;
    transition: all 0.35s var(--ease);
  }
  .nk-head__nav.is-open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }
  .nk-burger { display: flex; }
  .nk-foot__cols { grid-template-columns: 1fr; }
  .nk-numbers__grid { grid-template-columns: 1fr 1fr; gap: 2rem; }
  .nk-cart-item { grid-template-columns: 80px 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  .nk-reveal { opacity: 1; transform: none; }
}