/* Kuroxa — Layered Image Sections · Layout 64 */
:root {
  --kx-obsidian: #0A0B0F;
  --kx-graphite: #151820;
  --kx-graphite-soft: #1C212D;
  --kx-titanium: #A8B0BC;
  --kx-titanium-dim: #6B7380;
  --kx-cyan: #3DE8D4;
  --kx-cyan-dim: rgba(61, 232, 212, 0.14);
  --kx-cyan-glow: rgba(61, 232, 212, 0.35);
  --kx-bg: var(--kx-obsidian);
  --kx-bg-elevated: var(--kx-graphite);
  --kx-bg-panel: var(--kx-graphite-soft);
  --kx-text: #E8ECF2;
  --kx-text-muted: var(--kx-titanium);
  --kx-border: rgba(168, 176, 188, 0.1);
  --kx-border-strong: rgba(168, 176, 188, 0.22);
  --kx-shadow-sm: 0 8px 24px rgba(0, 0, 0, 0.45);
  --kx-shadow-md: 0 16px 48px rgba(0, 0, 0, 0.55);
  --kx-shadow-lg: 0 28px 80px rgba(0, 0, 0, 0.65);
  --kx-shadow-layer: 0 24px 60px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(61, 232, 212, 0.06);
  --kx-font-display: 'Syne', 'Noto Sans JP', sans-serif;
  --kx-font-serif: 'Cormorant Garamond', 'Noto Sans JP', serif;
  --kx-font-mono: 'IBM Plex Mono', monospace;
  --kx-font-body: 'Noto Sans JP', sans-serif;
  --kx-nav-h: 68px;
  --kx-strip-h: 26px;
  --kx-rail-w: 48px;
  --kx-ease: cubic-bezier(0.22, 1, 0.36, 1);
  --kx-max: 1240px;
  --kx-gutter: clamp(1rem, 4vw, 2.5rem);
}

[data-theme="light"] {
  --kx-bg: #F2F4F8;
  --kx-bg-elevated: #FFFFFF;
  --kx-bg-panel: #E8ECF2;
  --kx-text: #0A0B0F;
  --kx-text-muted: #5A6270;
  --kx-border: rgba(10, 11, 15, 0.1);
  --kx-border-strong: rgba(10, 11, 15, 0.18);
  --kx-shadow-sm: 0 8px 24px rgba(10, 11, 15, 0.08);
  --kx-shadow-md: 0 16px 48px rgba(10, 11, 15, 0.12);
  --kx-shadow-lg: 0 28px 80px rgba(10, 11, 15, 0.16);
  --kx-shadow-layer: 0 20px 50px rgba(10, 11, 15, 0.1), 0 0 0 1px rgba(61, 232, 212, 0.12);
  --kx-cyan-dim: rgba(61, 232, 212, 0.22);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body.kx-body {
  margin: 0;
  font-family: var(--kx-font-body);
  font-size: 1rem;
  line-height: 1.7;
  color: var(--kx-text);
  background: var(--kx-bg);
  overflow-x: hidden;
  padding-top: calc(var(--kx-strip-h) + var(--kx-nav-h));
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--kx-cyan); text-decoration: none; transition: color 0.25s var(--kx-ease); }
a:hover { color: var(--kx-text); }
h1, h2, h3, h4 { font-family: var(--kx-font-display); font-weight: 600; line-height: 1.15; margin: 0 0 0.75rem; }
h1 em, h2 em, h3 em { font-family: var(--kx-font-serif); font-style: italic; font-weight: 500; color: var(--kx-cyan); }
p { margin: 0 0 1rem; }
ul, ol { margin: 0; padding: 0; list-style: none; }
address { font-style: normal; }
.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; }

.kx-micro {
  font-family: var(--kx-font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--kx-text-muted);
}

/* Skip */
.kx-skip {
  position: absolute; left: -9999px; top: 0; z-index: 9999;
  padding: 0.75rem 1rem; background: var(--kx-cyan); color: var(--kx-obsidian); font-weight: 600;
}
.kx-skip:focus { left: 0; }

/* Buttons */
.kx-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.4rem;
  font-family: var(--kx-font-mono); font-size: 0.72rem; letter-spacing: 0.1em; text-transform: uppercase;
  padding: 0.85rem 1.5rem; border: 1px solid transparent; border-radius: 2px;
  cursor: pointer; transition: background 0.3s var(--kx-ease), color 0.3s, border-color 0.3s, box-shadow 0.3s, transform 0.2s;
}
.kx-btn:hover { transform: translateY(-1px); }
.kx-btn--cyan { background: var(--kx-cyan); color: var(--kx-obsidian); border-color: var(--kx-cyan); }
.kx-btn--cyan:hover { background: #5ef0de; color: var(--kx-obsidian); box-shadow: 0 0 24px var(--kx-cyan-glow); }
.kx-btn--ghost { background: transparent; color: var(--kx-text); border-color: var(--kx-border-strong); }
.kx-btn--ghost:hover { border-color: var(--kx-cyan); color: var(--kx-cyan); }
.kx-btn--outline { background: transparent; color: var(--kx-cyan); border-color: var(--kx-cyan); }
.kx-btn--outline:hover { background: var(--kx-cyan-dim); }
.kx-btn--sm { padding: 0.5rem 0.9rem; font-size: 0.62rem; }
.kx-btn--lg { padding: 1rem 2rem; font-size: 0.78rem; }
.kx-btn--wide { width: 100%; }

/* Coord strip ticker */
.kx-coord-strip {
  position: fixed; top: 0; left: 0; right: 0; z-index: 950;
  height: var(--kx-strip-h); overflow: hidden;
  background: var(--kx-graphite);
  border-bottom: 1px solid var(--kx-border);
  pointer-events: none;
}
[data-theme="light"] .kx-coord-strip { background: var(--kx-bg-panel); }
.kx-coord-strip__track {
  display: flex; gap: 4rem; white-space: nowrap;
  animation: kx-coord-scroll 32s linear infinite;
  font-family: var(--kx-font-mono); font-size: 0.58rem;
  letter-spacing: 0.16em; color: var(--kx-titanium-dim);
  padding: 5px 0;
}
@keyframes kx-coord-scroll {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

/* Depth rail */
.kx-depth-rail {
  position: fixed; left: 0; top: calc(var(--kx-strip-h) + var(--kx-nav-h));
  bottom: 0; z-index: 800; width: var(--kx-rail-w);
  display: flex; align-items: center; justify-content: center;
  border-right: 1px solid var(--kx-border);
  background: linear-gradient(180deg, rgba(10,11,15,0.92), rgba(21,24,32,0.88));
  backdrop-filter: blur(8px);
}
[data-theme="light"] .kx-depth-rail {
  background: linear-gradient(180deg, rgba(242,244,248,0.95), rgba(232,236,242,0.9));
}
.kx-depth-rail__stack { display: flex; flex-direction: column; align-items: center; gap: 0.75rem; height: 70%; }
.kx-depth-rail__tag {
  font-family: var(--kx-font-mono); font-size: 0.55rem; letter-spacing: 0.12em;
  color: var(--kx-cyan); writing-mode: vertical-rl; transform: rotate(180deg);
}
.kx-depth-rail__layers { flex: 1; display: flex; flex-direction: column; gap: 0.35rem; width: 100%; padding: 0 0.35rem; }
.kx-depth-rail__layers a {
  display: block; font-family: var(--kx-font-mono); font-size: 0.5rem; letter-spacing: 0.06em;
  color: var(--kx-titanium-dim); text-align: center; padding: 0.25rem 0;
  border-left: 2px solid transparent; transition: color 0.25s, border-color 0.25s;
}
.kx-depth-rail__layers a:hover,
.kx-depth-rail__layers a.is-active { color: var(--kx-cyan); border-left-color: var(--kx-cyan); }
.kx-depth-rail__meter {
  width: 3px; flex: 1; max-height: 120px; background: var(--kx-border);
  border-radius: 2px; overflow: hidden; position: relative;
}
.kx-depth-rail__meter span {
  position: absolute; bottom: 0; left: 0; right: 0; height: 0;
  background: linear-gradient(180deg, var(--kx-cyan), rgba(61,232,212,0.3));
  transition: height 0.4s var(--kx-ease);
}
.kx-depth-rail__depth {
  font-family: var(--kx-font-mono); font-size: 0.6rem; color: var(--kx-cyan);
  letter-spacing: 0.08em;
}

/* Bracket nav */
.kx-bracket-nav {
  position: fixed; top: var(--kx-strip-h); left: 0; right: 0; z-index: 940;
  padding: 0.5rem var(--kx-gutter);
}
.page-home .kx-bracket-nav { left: var(--kx-rail-w); }
.kx-bracket-nav__frame {
  max-width: var(--kx-max); margin: 0 auto;
  display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 1.5rem;
  padding: 0.65rem 1.25rem; position: relative;
  background: rgba(21, 24, 32, 0.82); backdrop-filter: blur(12px);
  border: 1px solid var(--kx-border);
}
[data-theme="light"] .kx-bracket-nav__frame { background: rgba(255,255,255,0.88); }
.kx-bracket-nav.is-scrolled .kx-bracket-nav__frame { box-shadow: var(--kx-shadow-sm); }
.kx-bracket-nav__corner {
  position: absolute; width: 10px; height: 10px;
  border-color: var(--kx-cyan); border-style: solid; opacity: 0.7;
}
.kx-bracket-nav__corner--tl { top: -1px; left: -1px; border-width: 2px 0 0 2px; }
.kx-bracket-nav__corner--tr { top: -1px; right: -1px; border-width: 2px 2px 0 0; }
.kx-bracket-nav__corner--bl { bottom: -1px; left: -1px; border-width: 0 0 2px 2px; }
.kx-bracket-nav__corner--br { bottom: -1px; right: -1px; border-width: 0 2px 2px 0; }
.kx-bracket-nav__brand { display: flex; align-items: center; gap: 0.65rem; color: var(--kx-text); }
.kx-bracket-nav__brand:hover { color: var(--kx-cyan); }
.kx-bracket-nav__glyph {
  font-family: var(--kx-font-serif); font-size: 1.4rem; color: var(--kx-cyan);
  width: 2rem; height: 2rem; display: grid; place-items: center;
  border: 1px solid var(--kx-border-strong);
}
.kx-bracket-nav__word { display: flex; flex-direction: column; line-height: 1.2; }
.kx-bracket-nav__word strong { font-family: var(--kx-font-display); font-size: 0.95rem; letter-spacing: 0.04em; }
.kx-bracket-nav__word em { font-family: var(--kx-font-mono); font-size: 0.55rem; font-style: normal; color: var(--kx-text-muted); letter-spacing: 0.08em; }
.kx-bracket-nav__links { display: flex; gap: 1.75rem; justify-content: center; }
.kx-nav-link {
  font-family: var(--kx-font-mono); font-size: 0.68rem; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--kx-text-muted); position: relative; padding-bottom: 0.2rem;
}
.kx-nav-link::after {
  content: ''; position: absolute; left: 0; bottom: 0; width: 0; height: 1px;
  background: var(--kx-cyan); transition: width 0.3s var(--kx-ease);
}
.kx-nav-link:hover, .kx-nav-link.is-active { color: var(--kx-cyan); }
.kx-nav-link.is-active::after { width: 100%; }
.kx-bracket-nav__tools { display: flex; align-items: center; gap: 0.5rem; }
.kx-icon-btn, .kx-menu-btn {
  display: grid; place-items: center; width: 2.25rem; height: 2.25rem;
  background: transparent; border: 1px solid var(--kx-border); border-radius: 2px;
  color: var(--kx-text-muted); cursor: pointer; transition: border-color 0.25s, color 0.25s;
}
.kx-icon-btn:hover, .kx-menu-btn:hover { border-color: var(--kx-cyan); color: var(--kx-cyan); }
.kx-moon { display: none; }
[data-theme="light"] .kx-sun { display: none; }
[data-theme="light"] .kx-moon { display: block; }
.kx-cart-chip {
  display: flex; align-items: center; gap: 0.35rem; padding: 0.4rem 0.65rem;
  border: 1px solid var(--kx-border); border-radius: 2px; color: var(--kx-text-muted);
  font-family: var(--kx-font-mono); font-size: 0.65rem;
}
.kx-cart-chip:hover { border-color: var(--kx-cyan); color: var(--kx-cyan); }
.kx-menu-btn { display: none; flex-direction: column; gap: 5px; }
.kx-menu-btn span { display: block; width: 16px; height: 1.5px; background: currentColor; transition: transform 0.3s; }
.kx-menu-btn.is-open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.kx-menu-btn.is-open span:nth-child(2) { transform: rotate(-45deg); }

/* Search veil */
.kx-search-veil {
  position: fixed; inset: 0; z-index: 980; pointer-events: none; opacity: 0;
  transition: opacity 0.35s var(--kx-ease);
}
.kx-search-veil.is-open { pointer-events: auto; opacity: 1; }
.kx-search-veil__dim {
  position: absolute; inset: 0; background: rgba(10, 11, 15, 0.75); backdrop-filter: blur(6px);
}
[data-theme="light"] .kx-search-veil__dim { background: rgba(242, 244, 248, 0.85); }
.kx-search-veil__panel {
  position: absolute; top: calc(var(--kx-strip-h) + var(--kx-nav-h) + 1rem);
  left: 50%; transform: translateX(-50%) translateY(-12px);
  width: min(560px, calc(100% - 2rem)); padding: 1.75rem;
  background: var(--kx-bg-elevated); border: 1px solid var(--kx-border-strong);
  box-shadow: var(--kx-shadow-lg); transition: transform 0.35s var(--kx-ease);
}
.kx-search-veil.is-open .kx-search-veil__panel { transform: translateX(-50%) translateY(0); }
.kx-search-veil__form { display: flex; gap: 0.5rem; margin: 1rem 0; }
.kx-search-veil__form input {
  flex: 1; padding: 0.75rem 1rem; background: var(--kx-bg); border: 1px solid var(--kx-border);
  color: var(--kx-text); font-family: var(--kx-font-body); font-size: 0.95rem;
}
.kx-search-veil__form input:focus { outline: none; border-color: var(--kx-cyan); }
.kx-search-veil__hints { display: flex; flex-wrap: wrap; gap: 0.5rem; align-items: center; }
.kx-search-veil__hints button {
  background: var(--kx-cyan-dim); border: 1px solid transparent; color: var(--kx-cyan);
  font-family: var(--kx-font-mono); font-size: 0.62rem; padding: 0.35rem 0.65rem; cursor: pointer;
}
.kx-search-veil__hints button:hover { border-color: var(--kx-cyan); }

/* Slide menu */
.kx-slide-menu {
  position: fixed; inset: 0; z-index: 970; pointer-events: none; opacity: 0;
  transition: opacity 0.35s var(--kx-ease);
}
.kx-slide-menu.is-open { pointer-events: auto; opacity: 1; }
.kx-slide-menu__dim { position: absolute; inset: 0; background: rgba(10,11,15,0.6); }
.kx-slide-menu__sheet {
  position: absolute; top: 0; right: 0; bottom: 0; width: min(320px, 88vw);
  padding: calc(var(--kx-strip-h) + var(--kx-nav-h) + 1.5rem) 1.75rem 2rem;
  background: var(--kx-graphite); border-left: 1px solid var(--kx-border);
  transform: translateX(100%); transition: transform 0.4s var(--kx-ease);
  display: flex; flex-direction: column; gap: 0.25rem;
}
[data-theme="light"] .kx-slide-menu__sheet { background: var(--kx-bg-elevated); }
.kx-slide-menu.is-open .kx-slide-menu__sheet { transform: translateX(0); }
.kx-slide-menu__sheet > a {
  font-family: var(--kx-font-display); font-size: 1.05rem; color: var(--kx-text);
  padding: 0.65rem 0; border-bottom: 1px solid var(--kx-border);
}
.kx-slide-menu__sheet > a:hover { color: var(--kx-cyan); }
.kx-slide-menu__meta { margin-top: auto; display: flex; flex-direction: column; gap: 0.35rem; }

/* Main */
.kx-main { min-height: 60vh; }
.page-home .kx-main { margin-left: var(--kx-rail-w); }

/* Layer world + strata base */
.kx-layer-world { position: relative; }
.kx-stratum {
  position: relative; min-height: 100vh; padding: clamp(4rem, 10vh, 7rem) var(--kx-gutter);
  overflow: hidden;
}
.kx-stratum::before {
  content: ''; position: absolute; inset: 0; z-index: 0;
  background: linear-gradient(180deg, transparent 0%, rgba(10,11,15,0.4) 100%);
  pointer-events: none;
}
.kx-stratum > * { position: relative; z-index: 1; }
.kx-stratum-tag {
  display: inline-block; font-family: var(--kx-font-mono); font-size: 0.62rem;
  letter-spacing: 0.14em; color: var(--kx-cyan); margin-bottom: 0.75rem;
  padding: 0.3rem 0.65rem; border: 1px solid var(--kx-cyan-dim); background: rgba(61,232,212,0.04);
}

/* 01 · Aperture */
.kx-stratum--aperture { padding: 0; min-height: 100vh; }
.kx-aperture { position: relative; min-height: 100vh; display: grid; place-items: center; }
.kx-aperture__stack { position: absolute; inset: 0; overflow: hidden; }
.kx-aperture__plane { position: absolute; inset: 0; will-change: transform; }
.kx-aperture__plane img { width: 100%; height: 100%; object-fit: cover; }
.kx-aperture__plane--back { z-index: 1; opacity: 0.45; filter: blur(1px) brightness(0.6); transform: scale(1.08); }
.kx-aperture__plane--mid { z-index: 2; opacity: 0.7; inset: 5% 8%; box-shadow: var(--kx-shadow-lg); }
.kx-aperture__plane--front { z-index: 3; inset: 12% 15% 18%; box-shadow: var(--kx-shadow-layer); border: 1px solid var(--kx-border); }
.kx-aperture__hud {
  position: relative; z-index: 10; max-width: 640px; margin: auto; padding: 2rem;
  background: rgba(10, 11, 15, 0.72); backdrop-filter: blur(16px);
  border: 1px solid var(--kx-border-strong); box-shadow: var(--kx-shadow-md);
}
[data-theme="light"] .kx-aperture__hud { background: rgba(255,255,255,0.88); }
.kx-aperture__title { font-size: clamp(2rem, 5vw, 3.2rem); margin-bottom: 1rem; }
.kx-aperture__kanji { display: block; font-family: var(--kx-font-serif); font-size: 0.55em; color: var(--kx-cyan); letter-spacing: 0.2em; }
.kx-aperture__brand { font-style: normal; display: block; }
.kx-aperture__tag { display: block; font-family: var(--kx-font-mono); font-size: 0.35em; font-weight: 400; color: var(--kx-text-muted); margin-top: 0.35rem; letter-spacing: 0.06em; }
.kx-aperture__deck { font-size: 0.95rem; color: var(--kx-text-muted); margin-bottom: 1.5rem; }
.kx-aperture__actions { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-bottom: 1.5rem; }
.kx-aperture__stats { display: flex; gap: 2rem; border-top: 1px solid var(--kx-border); padding-top: 1rem; }
.kx-aperture__stats em { display: block; font-family: var(--kx-font-display); font-style: normal; font-size: 1.25rem; color: var(--kx-cyan); }
.kx-aperture__stats span { font-size: 0.65rem; color: var(--kx-text-muted); font-family: var(--kx-font-mono); letter-spacing: 0.08em; }
.kx-aperture__depth-label {
  position: absolute; right: 1.5rem; bottom: 2rem; z-index: 10;
  display: flex; flex-direction: column; gap: 0.5rem;
  font-family: var(--kx-font-mono); font-size: 0.6rem; color: var(--kx-cyan); opacity: 0.6;
}

/* 02 · Manifesto */
.kx-stratum--manifesto { background: var(--kx-bg-elevated); margin-top: -4rem; padding-top: 8rem; z-index: 2; }
.kx-manifesto {
  max-width: var(--kx-max); margin: 0 auto;
  display: grid; grid-template-columns: 1fr 1.1fr 0.85fr; gap: 2rem; align-items: center;
}
.kx-manifesto__back { position: relative; z-index: 0; opacity: 0.35; border-radius: 2px; overflow: hidden; }
.kx-manifesto__back img { width: 100%; aspect-ratio: 4/3; object-fit: cover; filter: grayscale(30%); }
.kx-manifesto__mid { position: relative; z-index: 2; padding: 2rem; background: var(--kx-bg); box-shadow: var(--kx-shadow-layer); border: 1px solid var(--kx-border); margin-left: -3rem; }
.kx-manifesto__head { font-size: clamp(1.6rem, 3vw, 2.4rem); }
.kx-manifesto__verse blockquote {
  margin: 1.5rem 0 0; padding-left: 1rem; border-left: 2px solid var(--kx-cyan);
  font-family: var(--kx-font-serif); font-style: italic; font-size: 1.15rem; color: var(--kx-text-muted);
}
.kx-manifesto__front { position: relative; z-index: 3; margin-top: 3rem; box-shadow: var(--kx-shadow-md); border: 1px solid var(--kx-border); }
.kx-manifesto__front img { width: 100%; aspect-ratio: 4/3; object-fit: cover; }
.kx-manifesto__front figcaption { padding: 0.5rem 0; }

/* 03 · Metrics */
.kx-stratum--metrics { background: var(--kx-bg); z-index: 3; }
.kx-metrics {
  max-width: var(--kx-max); margin: 0 auto;
  display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; align-items: center;
}
.kx-metrics__visual { position: relative; min-height: 420px; }
.kx-metrics__plane { position: absolute; border: 1px solid var(--kx-border); box-shadow: var(--kx-shadow-md); overflow: hidden; }
.kx-metrics__plane img { width: 100%; height: 100%; object-fit: cover; }
.kx-metrics__plane--a { width: 72%; top: 0; left: 0; z-index: 1; aspect-ratio: 16/10; opacity: 0.5; }
.kx-metrics__plane--b { width: 58%; top: 18%; right: 0; z-index: 2; aspect-ratio: 4/3; }
.kx-metrics__plane--c { width: 48%; bottom: 0; left: 15%; z-index: 3; aspect-ratio: 3/2; border-color: var(--kx-cyan-dim); }
.kx-metrics__panel { padding: 2rem; background: var(--kx-bg-elevated); border: 1px solid var(--kx-border); box-shadow: var(--kx-shadow-sm); }
.kx-metrics__title { font-size: clamp(1.8rem, 3vw, 2.5rem); }
.kx-metrics__intro { color: var(--kx-text-muted); margin-bottom: 1.5rem; }
.kx-metrics__grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1rem; }
.kx-metrics__cell { padding: 1rem; background: var(--kx-bg); border: 1px solid var(--kx-border); }
.kx-metrics__val { display: block; font-family: var(--kx-font-display); font-size: 1.75rem; color: var(--kx-cyan); line-height: 1; }
.kx-metrics__val small { font-size: 0.45em; color: var(--kx-text-muted); margin-left: 0.15em; }
.kx-metrics__label { font-size: 0.75rem; color: var(--kx-text-muted); margin-top: 0.35rem; display: block; }

/* 04 · Lens */
.kx-stratum--lens { background: var(--kx-bg-elevated); z-index: 4; margin-top: -2rem; padding-top: 6rem; }
.kx-lens { max-width: var(--kx-max); margin: 0 auto; }
.kx-lens__header { text-align: center; max-width: 560px; margin: 0 auto 2.5rem; }
.kx-lens__title { font-size: clamp(1.8rem, 3vw, 2.5rem); }
.kx-lens__stage {
  display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 2rem;
  padding: 1.5rem; background: var(--kx-bg); border: 1px solid var(--kx-border); box-shadow: var(--kx-shadow-md);
}
.kx-lens__stack { position: relative; aspect-ratio: 16/10; overflow: hidden; }
.kx-lens__plane { position: absolute; inset: 0; opacity: 0; transition: opacity 0.5s var(--kx-ease), transform 0.5s; transform: scale(1.04); }
.kx-lens__plane.is-active { opacity: 1; transform: scale(1); z-index: 1; }
.kx-lens__plane img { width: 100%; height: 100%; object-fit: cover; }
.kx-lens__controls { display: flex; flex-direction: column; gap: 1.25rem; }
.kx-lens__depth-slider input[type="range"] { width: 100%; accent-color: var(--kx-cyan); margin: 0.5rem 0; }
.kx-lens__depth-ticks { display: flex; justify-content: space-between; font-family: var(--kx-font-mono); font-size: 0.58rem; color: var(--kx-titanium-dim); }
.kx-lens__modes { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0.5rem; }
.kx-lens__mode {
  padding: 0.65rem; background: transparent; border: 1px solid var(--kx-border);
  color: var(--kx-text-muted); cursor: pointer; text-align: left; transition: border-color 0.25s, background 0.25s;
}
.kx-lens__mode.is-active { border-color: var(--kx-cyan); background: var(--kx-cyan-dim); color: var(--kx-cyan); }
.kx-lens__mode-en { display: block; font-family: var(--kx-font-display); font-size: 0.85rem; }
.kx-lens__mode-jp { font-family: var(--kx-font-mono); font-size: 0.58rem; letter-spacing: 0.06em; }
.kx-lens__spec { display: flex; gap: 1.5rem; margin-bottom: 0.75rem; }
.kx-lens__spec span { font-family: var(--kx-font-display); font-size: 1.1rem; }
.kx-lens__spec em { display: block; font-family: var(--kx-font-mono); font-size: 0.58rem; font-style: normal; color: var(--kx-text-muted); letter-spacing: 0.08em; }
.kx-lens__feel { font-family: var(--kx-font-serif); font-style: italic; color: var(--kx-text-muted); font-size: 1.05rem; }

/* 05 · Fleet */
.kx-stratum--fleet { z-index: 5; }
.kx-fleet { max-width: var(--kx-max); margin: 0 auto; }
.kx-fleet__header { margin-bottom: 2.5rem; }
.kx-fleet__title { font-size: clamp(1.8rem, 3vw, 2.5rem); }
.kx-fleet__deck { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.25rem; }
.kx-fleet__card { transform: translateY(calc(var(--card-offset, 0) * 1.5rem)); }
.kx-fleet__card-stack {
  background: var(--kx-bg-elevated); border: 1px solid var(--kx-border);
  box-shadow: var(--kx-shadow-sm); transition: transform 0.35s var(--kx-ease), box-shadow 0.35s;
}
.kx-fleet__card-stack:hover { transform: translateY(-6px); box-shadow: var(--kx-shadow-md); border-color: var(--kx-cyan-dim); }
.kx-fleet__card-img { position: relative; overflow: hidden; }
.kx-fleet__card-img img { width: 100%; aspect-ratio: 16/10; object-fit: cover; transition: transform 0.5s; }
.kx-fleet__card-stack:hover .kx-fleet__card-img img { transform: scale(1.05); }
.kx-fleet__badge {
  position: absolute; top: 0.65rem; left: 0.65rem; font-family: var(--kx-font-mono); font-size: 0.55rem;
  letter-spacing: 0.08em; padding: 0.25rem 0.5rem; background: var(--kx-cyan); color: var(--kx-obsidian);
}
.kx-fleet__card-body { padding: 1rem; }
.kx-fleet__card-body h3 { font-size: 1rem; margin: 0.35rem 0; }
.kx-fleet__card-body p { font-size: 0.82rem; color: var(--kx-text-muted); margin-bottom: 0.75rem; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.kx-fleet__card-foot { display: flex; align-items: center; justify-content: space-between; gap: 0.5rem; }
.kx-fleet__price { font-family: var(--kx-font-serif); font-size: 1.1rem; color: var(--kx-cyan); }
.kx-fleet__cta { text-align: center; margin-top: 2.5rem; }

/* 06 · Prism */
.kx-stratum--prism { background: var(--kx-bg-elevated); z-index: 6; margin-top: -3rem; padding-top: 7rem; }
.kx-prism { max-width: var(--kx-max); margin: 0 auto; }
.kx-prism__header { margin-bottom: 2rem; }
.kx-prism__title { font-size: clamp(1.8rem, 3vw, 2.5rem); }
.kx-prism__canvas { padding: 2rem; background: var(--kx-bg); border: 1px solid var(--kx-border); }
.kx-prism__slices {
  display: flex; gap: var(--prism-gap, 12px); height: 320px; overflow: hidden;
  transform: skewY(var(--prism-skew, 0deg)); transition: transform 0.3s, gap 0.3s;
}
.kx-prism__slice { flex: 1; overflow: hidden; clip-path: polygon(8% 0, 100% 0, 92% 100%, 0 100%); box-shadow: var(--kx-shadow-sm); }
.kx-prism__slice img { width: 100%; height: 100%; object-fit: cover; filter: contrast(1.05); }
.kx-prism__controls { display: flex; flex-wrap: wrap; align-items: center; gap: 1rem; margin: 1.5rem 0; }
.kx-prism__controls input[type="range"] { width: 120px; accent-color: var(--kx-cyan); }
.kx-prism__note { font-family: var(--kx-font-serif); font-style: italic; color: var(--kx-text-muted); font-size: 1.05rem; }

/* 07 · Chronicle */
.kx-stratum--chronicle { position: relative; z-index: 7; min-height: auto; padding-bottom: 6rem; }
.kx-chronicle { max-width: var(--kx-max); margin: 0 auto; position: relative; }
.kx-chronicle__backdrop { position: absolute; inset: 0; opacity: 0.2; z-index: 0; overflow: hidden; }
.kx-chronicle__backdrop img { width: 100%; height: 100%; object-fit: cover; filter: grayscale(40%); }
.kx-chronicle__header { position: relative; margin-bottom: 2.5rem; }
.kx-chronicle__title { font-size: clamp(1.8rem, 3vw, 2.5rem); }
.kx-chronicle__timeline { position: relative; display: flex; flex-direction: column; gap: 1rem; padding-left: 1.5rem; border-left: 1px solid var(--kx-border-strong); }
.kx-chronicle__plate {
  position: relative; display: grid; grid-template-columns: 80px 1fr; gap: 1.25rem;
  padding: 1.25rem; background: rgba(21,24,32,0.85); border: 1px solid var(--kx-border);
  box-shadow: var(--kx-shadow-sm); margin-left: calc(var(--plate-z, 0) * 0.75rem);
  transform: translateX(calc(var(--plate-z, 0) * 0.5rem));
}
[data-theme="light"] .kx-chronicle__plate { background: rgba(255,255,255,0.92); }
.kx-chronicle__year { font-family: var(--kx-font-display); font-size: 1.5rem; color: var(--kx-cyan); }
.kx-chronicle__content h3 { font-size: 1.05rem; margin-bottom: 0.35rem; }

/* 08 · Atelier */
.kx-stratum--atelier { background: var(--kx-bg-elevated); z-index: 8; }
.kx-atelier { max-width: var(--kx-max); margin: 0 auto; }
.kx-atelier__header { margin-bottom: 2.5rem; }
.kx-atelier__title { font-size: clamp(1.8rem, 3vw, 2.5rem); }
.kx-atelier__sequence { display: grid; grid-template-columns: repeat(2, 1fr); gap: 2rem; }
.kx-atelier__step {
  display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; align-items: center;
  padding: 1rem; background: var(--kx-bg); border: 1px solid var(--kx-border);
  box-shadow: var(--kx-shadow-sm); transform: translateY(calc(var(--step-layer, 0) * -0.5rem));
}
.kx-atelier__step-img { overflow: hidden; border: 1px solid var(--kx-border); }
.kx-atelier__step-img img { width: 100%; aspect-ratio: 5/3.4; object-fit: cover; }
.kx-atelier__num { font-family: var(--kx-font-mono); font-size: 0.65rem; color: var(--kx-cyan); letter-spacing: 0.1em; }
.kx-atelier__step-copy h3 { font-size: 1.1rem; }

/* 09 · Resonance */
.kx-stratum--resonance { z-index: 9; }
.kx-resonance { max-width: 720px; margin: 0 auto; text-align: center; }
.kx-resonance__title { font-size: clamp(1.8rem, 3vw, 2.5rem); margin-bottom: 2rem; }
.kx-resonance__stack { position: relative; min-height: 280px; }
.kx-resonance__card {
  position: absolute; inset: 0; opacity: 0; transform: translateY(12px);
  transition: opacity 0.45s var(--kx-ease), transform 0.45s;
  padding: 2rem; background: var(--kx-bg-elevated); border: 1px solid var(--kx-border); box-shadow: var(--kx-shadow-md);
}
.kx-resonance__card.is-active { opacity: 1; transform: translateY(0); position: relative; }
.kx-resonance__portrait { width: 72px; height: 72px; border-radius: 50%; overflow: hidden; margin: 0 auto 1rem; border: 2px solid var(--kx-cyan-dim); }
.kx-resonance__portrait img { width: 100%; height: 100%; object-fit: cover; }
.kx-resonance__card blockquote p { font-family: var(--kx-font-serif); font-size: 1.15rem; font-style: italic; color: var(--kx-text-muted); margin-bottom: 1rem; }
.kx-resonance__card cite { font-style: normal; font-family: var(--kx-font-display); display: block; color: var(--kx-cyan); }
.kx-resonance__card footer span { font-size: 0.75rem; color: var(--kx-text-muted); }
.kx-resonance__nav { display: flex; justify-content: center; gap: 0.5rem; margin-top: 1.5rem; }
.kx-resonance__dot {
  width: 8px; height: 8px; border-radius: 50%; border: 1px solid var(--kx-border-strong);
  background: transparent; cursor: pointer; padding: 0; transition: background 0.25s, border-color 0.25s;
}
.kx-resonance__dot.is-active { background: var(--kx-cyan); border-color: var(--kx-cyan); }

/* 10 · Convergence */
.kx-stratum--convergence { padding: 0; min-height: 85vh; z-index: 10; margin-top: -2rem; }
.kx-convergence { position: relative; min-height: 85vh; display: grid; place-items: center; padding: 4rem var(--kx-gutter); }
.kx-convergence__layers { position: absolute; inset: 0; overflow: hidden; }
.kx-convergence__plane { position: absolute; inset: 0; }
.kx-convergence__plane img { width: 100%; height: 100%; object-fit: cover; }
.kx-convergence__plane--back { opacity: 0.35; filter: brightness(0.5); }
.kx-convergence__plane--front { inset: 15% 20% 25%; box-shadow: var(--kx-shadow-layer); border: 1px solid var(--kx-border); }
.kx-convergence__gate {
  position: relative; z-index: 5; max-width: 560px; text-align: center;
  padding: 2.5rem; background: rgba(10,11,15,0.82); backdrop-filter: blur(14px);
  border: 1px solid var(--kx-border-strong); box-shadow: var(--kx-shadow-lg);
}
[data-theme="light"] .kx-convergence__gate { background: rgba(255,255,255,0.9); }
.kx-convergence__title { font-size: clamp(1.8rem, 3vw, 2.5rem); }
.kx-convergence__perks { text-align: left; margin: 1.5rem 0; }
.kx-convergence__perks li { padding: 0.4rem 0 0.4rem 1.25rem; position: relative; font-size: 0.9rem; color: var(--kx-text-muted); }
.kx-convergence__perks li::before { content: '◆'; position: absolute; left: 0; color: var(--kx-cyan); font-size: 0.5rem; top: 0.65rem; }
.kx-convergence__actions { display: flex; flex-wrap: wrap; gap: 0.75rem; justify-content: center; margin-bottom: 1rem; }
.kx-convergence__note { opacity: 0.7; }

/* Fade-in */
.kx-fade-in { opacity: 0; transform: translateY(24px); transition: opacity 0.7s var(--kx-ease), transform 0.7s var(--kx-ease); }
.kx-fade-in.is-visible { opacity: 1; transform: translateY(0); }

/* Inner pages */
.kx-page { max-width: var(--kx-max); margin: 0 auto; padding: 2rem var(--kx-gutter) 4rem; }
.kx-page-hero { margin-bottom: 3rem; padding-bottom: 2rem; border-bottom: 1px solid var(--kx-border); }
.kx-page-hero h1 { font-size: clamp(2rem, 4vw, 2.8rem); }
.kx-page-hero__sub { color: var(--kx-text-muted); max-width: 560px; font-size: 1.05rem; }
.kx-page-hero--compact { margin-bottom: 2rem; padding-bottom: 1.5rem; }
.kx-page-hero--layered { position: relative; min-height: 320px; display: flex; align-items: flex-end; border: none; padding: 0; overflow: hidden; }
.kx-page-hero__back { position: absolute; inset: 0; z-index: 0; }
.kx-page-hero__back img { width: 100%; height: 100%; object-fit: cover; opacity: 0.45; }
.kx-page-hero__content { position: relative; z-index: 1; padding: 2.5rem; background: linear-gradient(0deg, var(--kx-bg) 40%, transparent); width: 100%; }

/* About */
.kx-about-story { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; align-items: center; margin-bottom: 4rem; }
.kx-about-story__visual { position: relative; }
.kx-about-story__visual > img { width: 100%; aspect-ratio: 3/2; object-fit: cover; box-shadow: var(--kx-shadow-md); border: 1px solid var(--kx-border); }
.kx-about-story__float { position: absolute; bottom: -1.5rem; right: -1.5rem; width: 45%; box-shadow: var(--kx-shadow-layer); border: 1px solid var(--kx-cyan-dim); }
.kx-about-story__text h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); margin-bottom: 1rem; }
.kx-about-values { margin-bottom: 4rem; }
.kx-about-values h2 { font-size: 1.75rem; margin-bottom: 1.5rem; }
.kx-about-values__grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; }
.kx-about-values__grid article { padding: 1.25rem; background: var(--kx-bg-elevated); border: 1px solid var(--kx-border); }
.kx-about-values__icon { display: inline-block; font-family: var(--kx-font-serif); font-size: 1.5rem; color: var(--kx-cyan); margin-bottom: 0.5rem; }
.kx-about-timeline { margin-bottom: 4rem; }
.kx-about-timeline h2 { font-size: 1.75rem; margin-bottom: 1.5rem; }
.kx-about-timeline__track { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; }
.kx-about-timeline__node { padding: 1.25rem; background: var(--kx-bg-elevated); border: 1px solid var(--kx-border); border-top: 2px solid var(--kx-cyan); }
.kx-about-timeline__year { font-family: var(--kx-font-display); font-size: 1.4rem; color: var(--kx-cyan); display: block; margin-bottom: 0.5rem; }
.kx-about-mission__layer { padding: 2.5rem; background: var(--kx-bg-elevated); border: 1px solid var(--kx-border); box-shadow: var(--kx-shadow-sm); text-align: center; max-width: 720px; margin: 0 auto; }

/* Shop */
.kx-shop-frame { display: grid; grid-template-columns: 220px 1fr; gap: 2rem; margin-bottom: 4rem; }
.kx-shop-sidebar { position: sticky; top: calc(var(--kx-strip-h) + var(--kx-nav-h) + 1rem); align-self: start; }
.kx-shop-sidebar h2 { font-size: 0.85rem; font-family: var(--kx-font-mono); letter-spacing: 0.1em; text-transform: uppercase; margin-bottom: 1rem; }
.kx-filter-stack { display: flex; flex-direction: column; gap: 0.35rem; margin-bottom: 1.5rem; }
.kx-filter-btn {
  text-align: left; padding: 0.55rem 0.75rem; background: transparent; border: 1px solid transparent;
  color: var(--kx-text-muted); font-family: var(--kx-font-mono); font-size: 0.68rem; cursor: pointer;
  transition: border-color 0.25s, color 0.25s, background 0.25s;
}
.kx-filter-btn:hover, .kx-filter-btn.is-active { border-color: var(--kx-cyan-dim); color: var(--kx-cyan); background: var(--kx-cyan-dim); }
.kx-shop-sidebar__sort label { display: block; font-size: 0.72rem; margin-bottom: 0.35rem; color: var(--kx-text-muted); }
.kx-shop-sidebar__sort select { width: 100%; padding: 0.5rem; background: var(--kx-bg); border: 1px solid var(--kx-border); color: var(--kx-text); font-family: var(--kx-font-body); }
.kx-shop-strata { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.5rem; }
.kx-shop-card {
  background: var(--kx-bg-elevated); border: 1px solid var(--kx-border);
  box-shadow: var(--kx-shadow-sm); transform: translateY(calc(var(--card-z, 0) * 0.15rem));
  transition: transform 0.35s, box-shadow 0.35s;
}
.kx-shop-card:hover { transform: translateY(calc(var(--card-z, 0) * 0.15rem - 4px)); box-shadow: var(--kx-shadow-md); border-color: var(--kx-cyan-dim); }
.kx-shop-card__img { position: relative; overflow: hidden; }
.kx-shop-card__img img { width: 100%; aspect-ratio: 3/2; object-fit: cover; }
.kx-shop-card__badge { position: absolute; top: 0.65rem; left: 0.65rem; font-family: var(--kx-font-mono); font-size: 0.55rem; padding: 0.25rem 0.5rem; background: var(--kx-cyan); color: var(--kx-obsidian); }
.kx-shop-card__body { padding: 1.25rem; }
.kx-shop-card__cat { font-family: var(--kx-font-mono); font-size: 0.6rem; letter-spacing: 0.06em; color: var(--kx-text-muted); }
.kx-shop-card__body h3 { font-size: 1.05rem; margin: 0.35rem 0; }
.kx-shop-card__story { font-size: 0.85rem; color: var(--kx-text-muted); margin-bottom: 0.75rem; }
.kx-shop-card__spec { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0.5rem; margin-bottom: 1rem; font-size: 0.75rem; }
.kx-shop-card__spec dt { font-family: var(--kx-font-mono); font-size: 0.55rem; color: var(--kx-titanium-dim); letter-spacing: 0.06em; }
.kx-shop-card__spec dd { margin: 0; font-family: var(--kx-font-display); color: var(--kx-cyan); }
.kx-shop-card__foot { display: flex; align-items: center; justify-content: space-between; gap: 0.75rem; flex-wrap: wrap; }
.kx-shop-card__price { font-family: var(--kx-font-serif); font-size: 1.2rem; color: var(--kx-cyan); }
.kx-shop-process { padding-top: 2rem; border-top: 1px solid var(--kx-border); }
.kx-shop-process h2 { font-size: 1.5rem; margin-bottom: 1.5rem; }
.kx-shop-process__steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; margin-bottom: 1rem; }
.kx-shop-process__steps article { padding: 1rem; background: var(--kx-bg-elevated); border: 1px solid var(--kx-border); }
.kx-shop-process__steps span { font-family: var(--kx-font-mono); font-size: 0.65rem; color: var(--kx-cyan); }
.kx-shop-teaser { color: var(--kx-text-muted); font-size: 0.9rem; }

/* FAQ */
.kx-faq-layout { display: grid; grid-template-columns: 200px 1fr; gap: 2.5rem; margin-bottom: 3rem; }
.kx-faq-tabs { display: flex; flex-direction: column; gap: 0.35rem; position: sticky; top: calc(var(--kx-strip-h) + var(--kx-nav-h) + 1rem); }
.kx-faq-tab {
  text-align: left; padding: 0.65rem 0.85rem; background: transparent; border: 1px solid var(--kx-border);
  color: var(--kx-text-muted); font-family: var(--kx-font-mono); font-size: 0.68rem; cursor: pointer;
}
.kx-faq-tab.is-active { border-color: var(--kx-cyan); color: var(--kx-cyan); background: var(--kx-cyan-dim); }
.kx-faq-panel { display: none; }
.kx-faq-panel.is-active { display: block; }
.kx-faq-item { border: 1px solid var(--kx-border); margin-bottom: 0.5rem; background: var(--kx-bg-elevated); }
.kx-faq-item summary {
  padding: 1rem 1.25rem; cursor: pointer; font-family: var(--kx-font-display); font-size: 0.95rem;
  list-style: none; display: flex; justify-content: space-between; align-items: center;
}
.kx-faq-item summary::-webkit-details-marker { display: none; }
.kx-faq-item summary::after { content: '+'; font-family: var(--kx-font-mono); color: var(--kx-cyan); }
.kx-faq-item[open] summary::after { content: '−'; }
.kx-faq-item p { padding: 0 1.25rem 1rem; color: var(--kx-text-muted); font-size: 0.9rem; margin: 0; }
.kx-faq-cta { text-align: center; padding: 2.5rem; background: var(--kx-bg-elevated); border: 1px solid var(--kx-border); }
.kx-faq-cta h2 { font-size: 1.4rem; margin-bottom: 0.5rem; }

/* Contact */
.kx-contact-split { display: grid; grid-template-columns: 1fr 1fr; gap: 2.5rem; margin-bottom: 3rem; }
.kx-contact-details__img img { width: 100%; aspect-ratio: 3/2; object-fit: cover; border: 1px solid var(--kx-border); margin-bottom: 1.5rem; }
.kx-contact-block { margin-bottom: 1.25rem; padding-bottom: 1.25rem; border-bottom: 1px solid var(--kx-border); }
.kx-contact-block h3 { font-size: 0.85rem; font-family: var(--kx-font-mono); letter-spacing: 0.08em; text-transform: uppercase; color: var(--kx-cyan); margin-bottom: 0.35rem; }
.kx-contact-form { padding: 1.75rem; background: var(--kx-bg-elevated); border: 1px solid var(--kx-border); }
.kx-contact-form h2 { font-size: 1.25rem; margin-bottom: 1.25rem; }
.kx-contact-form label { display: block; margin-bottom: 1rem; }
.kx-contact-form label span { display: block; font-size: 0.78rem; margin-bottom: 0.35rem; color: var(--kx-text-muted); }
.kx-contact-form label span em { color: var(--kx-cyan); font-style: normal; }
.kx-contact-form input, .kx-contact-form select, .kx-contact-form textarea {
  width: 100%; padding: 0.7rem 0.85rem; background: var(--kx-bg); border: 1px solid var(--kx-border);
  color: var(--kx-text); font-family: var(--kx-font-body); font-size: 0.95rem;
}
.kx-contact-form input:focus, .kx-contact-form select:focus, .kx-contact-form textarea:focus { outline: none; border-color: var(--kx-cyan); }
.kx-contact-map h2 { font-size: 1.25rem; margin-bottom: 1rem; }
.kx-map-wrap { border: 1px solid var(--kx-border); overflow: hidden; filter: grayscale(30%) contrast(1.05); }

/* Cart */
.kx-cart-layout { display: grid; grid-template-columns: 1fr 340px; gap: 2rem; align-items: start; }
.kx-cart-empty { text-align: center; padding: 3rem; background: var(--kx-bg-elevated); border: 1px dashed var(--kx-border); }
.kx-cart-list { display: flex; flex-direction: column; gap: 1rem; }
.kx-cart-item {
  display: grid; grid-template-columns: 120px 1fr auto; gap: 1rem; align-items: center;
  padding: 1rem; background: var(--kx-bg-elevated); border: 1px solid var(--kx-border); box-shadow: var(--kx-shadow-sm);
}
.kx-cart-item img { width: 100%; aspect-ratio: 3/2; object-fit: cover; border: 1px solid var(--kx-border); }
.kx-cart-item__info h3 { font-size: 0.95rem; margin-bottom: 0.25rem; }
.kx-cart-item__price { font-family: var(--kx-font-serif); color: var(--kx-cyan); font-size: 1.05rem; margin: 0.25rem 0; }
.kx-cart-item__qty { display: flex; align-items: center; gap: 0.5rem; margin-top: 0.5rem; }
.kx-cart-item__qty button {
  width: 1.75rem; height: 1.75rem; border: 1px solid var(--kx-border); background: transparent;
  color: var(--kx-text); cursor: pointer; font-family: var(--kx-font-mono);
}
.kx-cart-item__qty button:hover { border-color: var(--kx-cyan); color: var(--kx-cyan); }
.kx-cart-item__remove { font-size: 0.72rem; color: var(--kx-text-muted); background: none; border: none; cursor: pointer; margin-top: 0.35rem; }
.kx-cart-item__remove:hover { color: var(--kx-cyan); }
.kx-cart-summary { position: sticky; top: calc(var(--kx-strip-h) + var(--kx-nav-h) + 1rem); padding: 1.5rem; background: var(--kx-bg-elevated); border: 1px solid var(--kx-border); }
.kx-cart-summary h2 { font-size: 1.1rem; margin-bottom: 1rem; }
.kx-cart-coupon { margin-bottom: 1rem; }
.kx-cart-coupon label { display: block; font-size: 0.75rem; margin-bottom: 0.35rem; color: var(--kx-text-muted); }
.kx-cart-coupon__row { display: flex; gap: 0.5rem; }
.kx-cart-coupon__row input { flex: 1; padding: 0.55rem; background: var(--kx-bg); border: 1px solid var(--kx-border); color: var(--kx-text); }
.kx-cart-totals { margin-bottom: 1rem; }
.kx-cart-totals div { display: flex; justify-content: space-between; padding: 0.4rem 0; font-size: 0.9rem; color: var(--kx-text-muted); }
.kx-cart-totals__grand { border-top: 1px solid var(--kx-border); padding-top: 0.75rem; margin-top: 0.5rem; font-size: 1.05rem; color: var(--kx-text); }
.kx-cart-totals__grand dd { font-family: var(--kx-font-serif); color: var(--kx-cyan); margin: 0; }
.kx-cart-note { margin-top: 0.75rem; line-height: 1.5; }

/* Legal */
.kx-legal-body { max-width: 760px; }
.kx-legal-body h2 { font-size: 1.25rem; margin: 2rem 0 0.75rem; padding-top: 0.5rem; border-top: 1px solid var(--kx-border); }
.kx-legal-body h3 { font-size: 1rem; margin: 1.25rem 0 0.5rem; color: var(--kx-text-muted); }
.kx-legal-body ul { list-style: disc; padding-left: 1.25rem; margin-bottom: 1rem; }
.kx-legal-body li { margin-bottom: 0.35rem; color: var(--kx-text-muted); font-size: 0.92rem; }

/* Strata footer */
.kx-strata-foot { position: relative; margin-top: 4rem; overflow: hidden; }
.page-home .kx-strata-foot { margin-left: var(--kx-rail-w); }
.kx-strata-foot__layers { position: absolute; inset: 0; pointer-events: none; }
.kx-strata-foot__layer { position: absolute; left: 0; right: 0; height: 33%; opacity: 0.06; }
.kx-strata-foot__layer--1 { top: 0; background: linear-gradient(180deg, var(--kx-cyan), transparent); transform: skewY(-2deg); }
.kx-strata-foot__layer--2 { top: 30%; background: var(--kx-graphite); transform: skewY(1.5deg); opacity: 0.4; height: 40%; }
.kx-strata-foot__layer--3 { bottom: 0; height: 50%; background: linear-gradient(0deg, var(--kx-obsidian), transparent); opacity: 0.8; }
[data-theme="light"] .kx-strata-foot__layer--3 { background: linear-gradient(0deg, var(--kx-bg-panel), transparent); }
.kx-strata-foot__content {
  position: relative; z-index: 1; max-width: var(--kx-max); margin: 0 auto;
  display: grid; grid-template-columns: 1.2fr 1.5fr 1fr; gap: 2rem;
  padding: 3rem var(--kx-gutter) 2rem; border-top: 1px solid var(--kx-border);
}
.kx-strata-foot__mark { display: flex; gap: 0.75rem; margin-bottom: 1.25rem; }
.kx-strata-foot__glyph { font-family: var(--kx-font-serif); font-size: 1.75rem; color: var(--kx-cyan); }
.kx-strata-foot__mark strong { font-family: var(--kx-font-display); display: block; font-size: 1.1rem; }
.kx-strata-foot__mark p { font-size: 0.82rem; color: var(--kx-text-muted); margin: 0; }
.kx-strata-foot__addr { font-size: 0.85rem; color: var(--kx-text-muted); line-height: 1.8; }
.kx-strata-foot__nav { display: flex; gap: 2.5rem; }
.kx-strata-foot__nav-block h4 { font-family: var(--kx-font-mono); font-size: 0.62rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--kx-cyan); margin-bottom: 0.75rem; }
.kx-strata-foot__nav-block a { display: block; font-size: 0.85rem; color: var(--kx-text-muted); padding: 0.25rem 0; }
.kx-strata-foot__nav-block a:hover { color: var(--kx-cyan); }
.kx-strata-foot__hours { font-size: 0.85rem; margin-bottom: 0.5rem; }
.kx-strata-foot__news { display: flex; gap: 0.5rem; margin-top: 1rem; }
.kx-strata-foot__news input { flex: 1; padding: 0.55rem; background: var(--kx-bg); border: 1px solid var(--kx-border); color: var(--kx-text); font-size: 0.85rem; }
.kx-strata-foot__bar {
  position: relative; z-index: 1; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 0.5rem;
  padding: 1rem var(--kx-gutter); border-top: 1px solid var(--kx-border);
  font-size: 0.78rem; color: var(--kx-text-muted); max-width: var(--kx-max); margin: 0 auto;
}

/* Back to top + toast */
.kx-back-top {
  position: fixed; bottom: 1.5rem; right: 1.5rem; z-index: 850;
  width: 2.75rem; height: 2.75rem; display: grid; place-items: center;
  background: var(--kx-graphite); border: 1px solid var(--kx-cyan-dim); color: var(--kx-cyan);
  cursor: pointer; opacity: 0; visibility: hidden; transform: translateY(8px);
  transition: opacity 0.3s, visibility 0.3s, transform 0.3s, background 0.25s;
}
.kx-back-top.is-visible { opacity: 1; visibility: visible; transform: translateY(0); }
.kx-back-top:hover { background: var(--kx-cyan-dim); border-color: var(--kx-cyan); }
.kx-toast {
  position: fixed; bottom: 1.5rem; left: 50%; transform: translateX(-50%) translateY(20px);
  z-index: 990; padding: 0.75rem 1.5rem; background: var(--kx-graphite); border: 1px solid var(--kx-cyan);
  color: var(--kx-text); font-family: var(--kx-font-mono); font-size: 0.72rem; letter-spacing: 0.06em;
  box-shadow: var(--kx-shadow-md); opacity: 0; visibility: hidden; transition: opacity 0.35s, transform 0.35s, visibility 0.35s;
}
.kx-toast.is-visible { opacity: 1; visibility: visible; transform: translateX(-50%) translateY(0); }

/* Parallax helper */
[data-parallax] { will-change: transform; }

/* Responsive — 1024px */
@media (max-width: 1024px) {
  .kx-depth-rail { display: none; }
  .page-home .kx-main, .page-home .kx-strata-foot, .page-home .kx-bracket-nav { margin-left: 0; left: 0; }
  .kx-bracket-nav__links { display: none; }
  .kx-menu-btn { display: flex; }
  .kx-manifesto { grid-template-columns: 1fr; }
  .kx-manifesto__mid { margin-left: 0; }
  .kx-manifesto__front { margin-top: 0; }
  .kx-metrics { grid-template-columns: 1fr; }
  .kx-metrics__visual { min-height: 300px; }
  .kx-lens__stage { grid-template-columns: 1fr; }
  .kx-fleet__deck { grid-template-columns: repeat(2, 1fr); }
  .kx-fleet__card { transform: none; }
  .kx-atelier__sequence { grid-template-columns: 1fr; }
  .kx-about-story { grid-template-columns: 1fr; }
  .kx-about-values__grid { grid-template-columns: repeat(2, 1fr); }
  .kx-about-timeline__track { grid-template-columns: repeat(2, 1fr); }
  .kx-shop-frame { grid-template-columns: 1fr; }
  .kx-shop-sidebar { position: static; display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; align-items: end; }
  .kx-filter-stack { flex-direction: row; flex-wrap: wrap; }
  .kx-shop-strata { grid-template-columns: 1fr; }
  .kx-shop-process__steps { grid-template-columns: repeat(2, 1fr); }
  .kx-faq-layout { grid-template-columns: 1fr; }
  .kx-faq-tabs { flex-direction: row; flex-wrap: wrap; position: static; }
  .kx-contact-split { grid-template-columns: 1fr; }
  .kx-cart-layout { grid-template-columns: 1fr; }
  .kx-cart-summary { position: static; }
  .kx-strata-foot__content { grid-template-columns: 1fr 1fr; }
}

/* Responsive — 768px */
@media (max-width: 768px) {
  body.kx-body { padding-top: calc(var(--kx-strip-h) + 56px); }
  .kx-bracket-nav { padding: 0.35rem 1rem; }
  .kx-bracket-nav__frame { padding: 0.5rem 0.75rem; gap: 0.75rem; }
  .kx-bracket-nav__word em { display: none; }
  .kx-stratum { min-height: auto; padding: 3rem 1rem; }
  .kx-aperture { min-height: 90vh; }
  .kx-aperture__plane--mid { inset: 8% 5%; }
  .kx-aperture__plane--front { inset: 18% 8% 22%; }
  .kx-aperture__hud { margin: 1rem; padding: 1.25rem; }
  .kx-aperture__stats { flex-wrap: wrap; gap: 1rem; }
  .kx-metrics__grid { grid-template-columns: 1fr; }
  .kx-fleet__deck { grid-template-columns: 1fr; }
  .kx-prism__slices { flex-direction: column; height: auto; transform: none; }
  .kx-prism__slice { clip-path: none; min-height: 160px; }
  .kx-chronicle__plate { grid-template-columns: 1fr; margin-left: 0; transform: none; }
  .kx-atelier__step { grid-template-columns: 1fr; }
  .kx-convergence__plane--front { inset: 10% 5% 30%; }
  .kx-convergence__actions { flex-direction: column; }
  .kx-convergence__actions .kx-btn { width: 100%; }
  .kx-about-values__grid, .kx-about-timeline__track, .kx-shop-process__steps { grid-template-columns: 1fr; }
  .kx-shop-sidebar { grid-template-columns: 1fr; }
  .kx-cart-item { grid-template-columns: 80px 1fr; }
  .kx-strata-foot__content { grid-template-columns: 1fr; }
  .kx-strata-foot__nav { flex-direction: column; gap: 1.5rem; }
  .kx-strata-foot__news { flex-direction: column; }
  .kx-strata-foot__bar { flex-direction: column; text-align: center; }
}