:root {
  --paper: #f6f5f1;
  --white: #fdfcf8;
  --ink: #171716;
  --soft: #c9c8c2;
  --faint: #e6e4de;
  --orange: #b94f24;
  --mono: "DM Mono", "SFMono-Regular", Consolas, monospace;
  --sans: "Inter", Arial, sans-serif;
  --side: clamp(24px, 5vw, 78px);
  --top: clamp(24px, 4vw, 54px);
}

* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; background: var(--paper); color: var(--ink); }
body { font-family: var(--sans); overflow: hidden; }
a { color: inherit; text-decoration: none; }
button { font: inherit; }

.concepts { position: relative; min-height: 100svh; }
.concept {
  position: absolute;
  inset: 0;
  min-height: 100svh;
  overflow: hidden;
  background: var(--paper);
  opacity: 0;
  visibility: hidden;
  transform: translateX(3%);
  transition: none;
}
.concept.is-active { opacity: 1; visibility: visible; transform: translateX(0); z-index: 2; }
.concept.was-active { transform: translateX(-3%); }
.about-page {
  position: absolute;
  inset: 0;
  min-height: 100svh;
  overflow-x: hidden;
  overflow-y: auto;
  background: var(--paper);
  opacity: 0;
  visibility: hidden;
  transform: translateX(3%);
  transition: none;
}
.about-page.is-active { opacity: 1; visibility: visible; transform: translateX(0); z-index: 3; }

.site-header {
  position: absolute;
  z-index: 20;
  top: var(--top);
  left: var(--side);
  right: var(--side);
  display: flex;
  justify-content: space-between;
  align-items: baseline;
}
.brand { font-size: clamp(16px, 1.4vw, 21px); font-weight: 600; font-style: italic; letter-spacing: -.055em; }
.brand-mark { display: inline-flex; align-items: center; padding: 3px 0; }
.brand-symbol { display: inline-flex; align-items: center; gap: 14px; flex: none; }
.brand-name {
  display: block;
  width: 0;
  margin-right: 0;
  overflow: hidden;
  opacity: 0;
  color: var(--ink);
  white-space: nowrap;
  transform: translateX(10px);
  transition: width .34s cubic-bezier(.22,.75,.2,1), margin-right .34s cubic-bezier(.22,.75,.2,1), opacity .2s ease, transform .34s cubic-bezier(.22,.75,.2,1);
}
.brand-mark:hover .brand-name, .brand-mark:focus-visible .brand-name { width: 88px; margin-right: 17px; opacity: 1; transform: translateX(0); }
.brand-shape { position: relative; display: block; width: 14px; height: 14px; background: var(--orange); transition: transform .18s ease, opacity .18s ease; }
.brand-shape + .brand-shape::before { content: ""; position: absolute; width: 8px; height: 4px; left: -11px; top: 50%; background: var(--orange); transform: translateY(-50%); }
.brand-circle { border-radius: 50%; }
.brand-mark:hover .brand-shape, .brand-mark:focus-visible .brand-shape { transform: translateY(-1px); }
.brand-mark:focus-visible { outline: 1px solid var(--orange); outline-offset: 5px; }
.site-header nav { display: flex; gap: clamp(19px, 3vw, 46px); font-family: var(--mono); font-size: 13px; letter-spacing: .02em; }
.site-header nav a { position: relative; padding-bottom: 5px; }
.site-header nav a::after { content: ""; position: absolute; left: 0; right: 100%; bottom: 0; height: 1px; background: var(--orange); transition: right .2s ease; }
.site-header nav a:hover::after, .site-header nav a:focus-visible::after { right: 0; }

.hero { position: absolute; z-index: 5; }
.hero-left { left: var(--side); top: 50%; transform: translateY(-49%); }
.word-lock { --pixel: clamp(5px, 1.05vw, 14px); --gap: clamp(1.5px, .22vw, 3px); width: max-content; max-width: calc(100vw - var(--side) * 2); }
.pixel-word {
  display: flex;
  align-items: flex-start;
  gap: clamp(5px, .8vw, 12px);
  width: max-content;
  transform: skewX(-9deg);
  transform-origin: left bottom;
}
.pixel-letter {
  display: grid;
  grid-template-columns: repeat(5, var(--pixel));
  grid-template-rows: repeat(7, var(--pixel));
  gap: var(--gap);
}
.pixel {
  width: var(--pixel);
  height: var(--pixel);
  background: var(--soft);
  transition: background .055s linear, transform .11s ease, opacity .12s ease;
}
.pixel.off { opacity: 0; pointer-events: none; }
.pixel:not(.off):hover, .pixel.is-lit { background: var(--orange); transform: translateY(-2px) scale(1.07); }
.pixel-word.is-wave-active .pixel:not(.off) { background: var(--orange); transform: translateY(-2px) scale(1.045); }
.tagline {
  margin: clamp(18px, 2.2vw, 30px) 0 0;
  text-align: right;
  font-size: clamp(13px, 1.2vw, 18px);
  letter-spacing: -.025em;
}
.eyebrow { margin: 0 0 24px; font: 400 10px/1.4 var(--mono); letter-spacing: .12em; color: var(--orange); }

.concept-switcher {
  position: fixed;
  z-index: 50;
  left: 50%;
  bottom: 24px;
  transform: translateX(-50%);
  display: grid;
  grid-template-columns: 46px minmax(148px, 190px) 46px;
  align-items: stretch;
  height: 46px;
  color: var(--ink);
  background: rgba(253,252,248,.92);
  border: 1px solid rgba(23,23,22,.22);
  box-shadow: 0 8px 30px rgba(23,23,22,.07);
  backdrop-filter: blur(10px);
}
.arrow { border: 0; border-right: 1px solid rgba(23,23,22,.18); background: transparent; cursor: pointer; color: var(--ink); font-size: 18px; transition: color .18s, background .18s; }
.arrow.next { border-right: 0; border-left: 1px solid rgba(23,23,22,.18); }
.arrow:hover, .arrow:focus-visible { background: var(--orange); color: white; outline: none; }
.concept-meta { display: grid; grid-template-columns: 44px 1fr; align-items: center; padding: 0 12px; gap: 7px; }
.concept-meta span { font: 400 9px var(--mono); color: #73726d; }
.concept-meta strong { font: 500 10px var(--mono); text-transform: uppercase; letter-spacing: .04em; white-space: nowrap; }
.progress { position: absolute; height: 2px; left: 46px; right: 46px; bottom: -1px; overflow: hidden; }
.progress i { display: block; height: 100%; width: 10%; background: var(--orange); transition: transform .45s cubic-bezier(.22,.8,.2,1); transform-origin: left; }
.usage-hint { position: fixed; z-index: 40; right: 22px; bottom: 20px; writing-mode: vertical-rl; font: 400 8px var(--mono); letter-spacing: .12em; color: #888680; }

/* 01 — Open Grid */
.concept-01 { background-image: linear-gradient(to right, transparent calc(100% - 1px), rgba(23,23,22,.045) 1px), linear-gradient(to bottom, transparent calc(100% - 1px), rgba(23,23,22,.045) 1px); background-size: 7.5vw 7.5vw; }
.concept-01 .micro-index { position: absolute; top: 23%; left: var(--side); font: 400 9px/1.7 var(--mono); color: #77756f; }
.edge-note { position: absolute; right: var(--side); bottom: 18%; margin: 0; text-align: right; font: 400 10px/1.6 var(--mono); color: #77756f; }

/* 02 — Editorial Margin */
.concept-02 { background: #f2f0ea; }
.concept-02::before { content: ""; position: absolute; inset: 0 auto 0 0; width: 17%; background: var(--ink); }
.concept-02 .site-header .brand { color: var(--white); }
.concept-02 .site-header { left: clamp(24px, 4vw, 58px); }
.concept-02 .hero { left: 23%; }
.concept-02 .pixel { background: #aaa9a4; }
.chapter-mark { position: absolute; left: clamp(24px,4vw,58px); top: 25%; bottom: 22%; color: white; display: flex; flex-direction: column; justify-content: space-between; font: 400 9px/1.6 var(--mono); }
.chapter-mark span:first-child { color: var(--orange); font-size: 26px; }
.orange-rule { position: absolute; height: 7px; width: 30%; right: 0; bottom: 20%; background: var(--orange); }

/* 03 — Molecular Field */
.concept-03 { background: #faf9f5; }
.molecule-field { position: absolute; width: min(48vw, 650px); aspect-ratio: 1; right: -7%; top: 10%; border: 1px solid #dddcd7; border-radius: 50%; }
.molecule-field::before, .molecule-field::after { content: ""; position: absolute; border: 1px solid #e2e0da; border-radius: 50%; inset: 18%; }
.molecule-field::after { inset: 37%; border-color: var(--orange); }
.molecule-field i { position: absolute; width: 8px; height: 8px; background: #aaa9a4; }
.molecule-field i:nth-child(1) { left: 22%; top: 12%; }.molecule-field i:nth-child(2) { left: 67%; top: 22%; background: var(--orange); }.molecule-field i:nth-child(3) { left: 13%; top: 62%; }.molecule-field i:nth-child(4) { left: 53%; top: 48%; }.molecule-field i:nth-child(5) { left: 80%; top: 69%; background: var(--orange); }.molecule-field i:nth-child(6) { left: 44%; top: 83%; }
.coordinates { position: absolute; right: var(--side); bottom: 18%; text-align: right; font: 400 9px/1.7 var(--mono); color: #77756f; }

/* 04 — Lab Register */
.concept-04 { background-color: #f6f5f0; background-image: repeating-linear-gradient(to bottom, transparent 0, transparent 47px, rgba(23,23,22,.07) 48px); }
.concept-04::after { content: ""; position: absolute; top: 0; bottom: 0; left: 19%; border-left: 1px solid rgba(185,79,36,.55); }
.register-number { position: absolute; top: 24%; left: var(--side); font: 400 9px var(--mono); color: var(--orange); }
.concept-04 .hero { left: 24%; }
.registry { position: absolute; right: var(--side); bottom: 18%; display: flex; gap: 30px; font: 400 8px var(--mono); color: #77756f; }
.registry span::before { content: "■"; margin-right: 8px; color: var(--orange); }

/* 05 — Split Signal */
.concept-05 { background: #f5f3ed; }
.split-dark { position: absolute; inset: 0 0 0 69%; background: var(--ink); color: #77756f; }
.split-dark span { position: absolute; right: 26px; top: 50%; transform: rotate(90deg) translateX(50%); transform-origin: right center; font: 400 9px var(--mono); letter-spacing: .2em; }
.concept-05 .site-header nav { color: white; }
.concept-05 .site-header nav a:first-child { color: var(--orange); }
.split-caption { position: absolute; z-index: 4; right: var(--side); bottom: 18%; color: white; text-align: right; font: 300 11px/1.6 var(--mono); }
.concept-05 .pixel:nth-child(7n) { background: var(--orange); }

/* 06 — Thesis Column */
.concept-06 { background: #f8f7f3; }
.concept-06::before { content: ""; position: absolute; left: 9%; top: 0; bottom: 0; width: 1px; background: #dad8d2; }
.vertical-label { position: absolute; left: calc(9% - 5px); top: 22%; writing-mode: vertical-rl; font: 400 8px var(--mono); letter-spacing: .17em; color: #7f7d77; }
.concept-06 .hero { left: 16%; top: 52%; }
.manifesto { margin: 0 0 48px; font-size: clamp(18px, 2vw, 30px); line-height: 1.2; letter-spacing: -.045em; }
.corner-square { position: absolute; width: 13vw; height: 13vw; max-width: 160px; max-height: 160px; right: 8%; bottom: 13%; border: 14px solid var(--orange); }

/* 07 — Kinetic Blocks */
.grid-page {
  --grid-size: clamp(36px, 5vw, 72px);
  --field-size: clamp(54px, 7.5vw, 108px);
  --grid-x: 50%;
  --grid-y: 50%;
  --grid-active: 0;
  background-color: #efeee9;
  background-image:
    linear-gradient(to right, transparent calc(100% - 1px), rgba(23,23,22,.055) 1px),
    linear-gradient(to bottom, transparent calc(100% - 1px), rgba(23,23,22,.055) 1px);
  background-size: var(--grid-size) var(--grid-size);
}
.interactive-grid {
  position: absolute;
  z-index: 1;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
  opacity: var(--grid-active);
  background-image:
    linear-gradient(to right, transparent calc(100% - 1.5px), rgba(185,79,36,.9) 1.5px),
    linear-gradient(to bottom, transparent calc(100% - 1.5px), rgba(185,79,36,.9) 1.5px);
  background-size: var(--grid-size) var(--grid-size);
  -webkit-mask-image: radial-gradient(circle var(--field-size) at var(--grid-x) var(--grid-y), #000 0 62%, rgba(0,0,0,.78) 76%, transparent 100%);
  mask-image: radial-gradient(circle var(--field-size) at var(--grid-x) var(--grid-y), #000 0 62%, rgba(0,0,0,.78) 76%, transparent 100%);
  transition: opacity .28s ease;
}
.grid-page.is-grid-muted .interactive-grid,
.grid-page.is-grid-muted .grid-trail { opacity: 0 !important; transition: opacity .08s ease; }
.grid-trail {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, transparent calc(100% - 1.5px), rgba(185,79,36,.72) 1.5px),
    linear-gradient(to bottom, transparent calc(100% - 1.5px), rgba(185,79,36,.72) 1.5px);
  background-size: var(--grid-size) var(--grid-size);
  -webkit-mask-image: radial-gradient(circle var(--field-size) at var(--trail-x) var(--trail-y), #000 0 52%, rgba(0,0,0,.55) 72%, transparent 100%);
  mask-image: radial-gradient(circle var(--field-size) at var(--trail-x) var(--trail-y), #000 0 52%, rgba(0,0,0,.55) 72%, transparent 100%);
  animation: grid-trail .82s ease-out forwards;
}
@keyframes grid-trail {
  0% { opacity: .46; }
  55% { opacity: .2; }
  100% { opacity: 0; }
}
.block-field { position: absolute; z-index: 2; inset: 0; pointer-events: none; }
.block-field > i { --block-color: #deddd7; position: absolute; z-index: 3; background: var(--block-color); pointer-events: auto; will-change: transform; }
.block-field > i.is-fragmented { background: transparent; }
.block-fragment {
  position: absolute;
  z-index: 0;
  left: var(--fragment-left);
  top: var(--fragment-top);
  width: 20%;
  height: 20%;
  background: var(--block-color);
  pointer-events: none;
  transform: translate(0, 0) scale(1) rotate(0deg);
  transform-origin: center;
  transition: background .46s ease, box-shadow .46s ease, transform .42s cubic-bezier(.2,.75,.25,1);
  transition-delay: var(--fragment-delay);
}
.block-field > i:has(.block-fragment.is-pulse-hit) { z-index: 6; }
.block-fragment.is-pulse-hit { z-index: 10; background: var(--orange); box-shadow: 0 0 8px rgba(185,79,36,.2); transform: translate(var(--fragment-x), var(--fragment-y)) scale(.82) rotate(var(--fragment-turn)); }
.block-field > i:hover .block-fragment {
  transform: translate(var(--fragment-x), var(--fragment-y)) scale(.84) rotate(var(--fragment-turn));
}
.block-field > i:nth-child(1) { width: 15vw; height: 15vw; right: 9%; top: 17%; }
.block-field > i:nth-child(2) { --block-color: var(--orange); width: 7vw; height: 7vw; right: 29%; top: 36%; }
.block-field > i:nth-child(3) { --block-color: #cac9c3; width: 11vw; height: 11vw; right: 16%; bottom: 21%; }
.block-field > i:nth-child(4) { --block-color: #1b1b1a; width: 4vw; height: 4vw; left: 46%; top: 18%; }
.block-field > i:nth-child(1) { animation: block-drift-a 13.5s ease-in-out infinite alternate; }
.block-field > i:nth-child(2) { animation: block-drift-b 11.5s ease-in-out infinite alternate; }
.block-field > i:nth-child(3) { animation: block-drift-c 15s ease-in-out infinite alternate; }
.block-field > i:nth-child(4) { animation: block-drift-d 12.5s ease-in-out infinite alternate; }
@keyframes block-drift-a { to { transform: translate(-4px, 3px); } }
@keyframes block-drift-b { to { transform: translate(3px, -3px); } }
@keyframes block-drift-c { to { transform: translate(-3px, -4px); } }
@keyframes block-drift-d { to { transform: translate(4px, 3px); } }
.block-connections { position: absolute; z-index: 1; inset: 0; width: 100%; height: 100%; overflow: visible; pointer-events: none; }
.connection-line { fill: none; vector-effect: non-scaling-stroke; }
.connection-line-base { stroke: #66645f; stroke-width: 1; opacity: .42; }
.connection-line-pulse { stroke: var(--orange); stroke-width: 1.65; stroke-linecap: square; stroke-dasharray: .065 1; animation: connection-pulse 4.6s linear infinite both; }
@keyframes connection-pulse {
  0% { stroke-dashoffset: 0; opacity: 0; }
  11% { opacity: .88; }
  84% { opacity: .88; }
  100% { stroke-dashoffset: -1; opacity: 0; }
}
.connection-node-layer { position: absolute; z-index: 2; inset: 0; pointer-events: none; }
.connection-node { position: absolute; width: 16px; height: 16px; color: rgba(102,100,95,.72); pointer-events: auto; transform: translate(-50%, -50%); }
.connection-node b { position: absolute; width: 3px; height: 3px; background: currentColor; pointer-events: none; transition: transform .32s cubic-bezier(.2,.8,.25,1); animation: connection-node-pulse 4.6s linear infinite both; animation-delay: var(--node-delay); }
.connection-node b:nth-child(1) { left: 5px; top: 5px; }
.connection-node b:nth-child(2) { left: 8px; top: 5px; }
.connection-node b:nth-child(3) { left: 5px; top: 8px; }
.connection-node b:nth-child(4) { left: 8px; top: 8px; }
.connection-node:hover b:nth-child(1) { transform: translate(-3px, -3px) rotate(-5deg) scale(.9); }
.connection-node:hover b:nth-child(2) { transform: translate(3px, -3px) rotate(5deg) scale(.9); }
.connection-node:hover b:nth-child(3) { transform: translate(-3px, 3px) rotate(4deg) scale(.9); }
.connection-node:hover b:nth-child(4) { transform: translate(3px, 3px) rotate(-4deg) scale(.9); }
@keyframes connection-node-pulse {
  0%, 100% { background: rgba(102,100,95,.72); box-shadow: none; }
  4% { background: var(--orange); box-shadow: 0 0 5px rgba(185,79,36,.22); }
  14% { background: rgba(102,100,95,.72); box-shadow: none; }
}
.concept-07 .pixel { background: #85837d; border-radius: 0; }
.concept-07 .tagline { color: var(--orange); font-size: clamp(16px, 1.4vw, 21px); }
.hero-caption { display: flex; align-items: baseline; justify-content: space-between; gap: clamp(24px, 4vw, 60px); width: calc(100% + var(--pixel) + var(--gap)); margin-top: clamp(8px, .9vw, 13px); }
.concept-07 .hero-caption .tagline { flex: none; margin: 0; text-align: right; }
.institute-label { flex: none; margin: 0; color: #85837d; font-size: clamp(20px, 2vw, 30px); font-weight: 500; font-style: italic; line-height: 1; letter-spacing: -.025em; white-space: nowrap; }

/* About */
.about-content { position: relative; z-index: 5; min-height: 100svh; padding: clamp(126px, 15vh, 180px) var(--side) clamp(48px, 7vh, 86px); }
.about-heading { display: flex; align-items: baseline; justify-content: space-between; gap: 24px; padding-bottom: 18px; border-bottom: 1px solid rgba(23,23,22,.16); }
.about-heading span { color: var(--orange); font: 500 9px/1 var(--mono); letter-spacing: .14em; }
.about-heading h1 { margin: 0; font-size: clamp(22px, 2.4vw, 36px); font-weight: 500; font-style: italic; letter-spacing: -.055em; }
.team-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: clamp(26px, 4vw, 48px); width: min(100%, 980px); margin: clamp(32px, 5vh, 58px) auto 0; }
.team-member { min-width: 0; }
.portrait-frame { position: relative; aspect-ratio: 1 / 1; overflow: hidden; background: #dddcd6; border: 1px solid rgba(23,23,22,.12); cursor: crosshair; }
.portrait-frame:focus-visible { outline: 2px solid var(--orange); outline-offset: 4px; }
.portrait-canvas {
  display: block;
  width: 100%;
  height: 100%;
  filter: grayscale(1) contrast(1.05);
  transition: filter .48s ease;
}
.portrait-frame:hover .portrait-canvas,
.portrait-frame:focus-within .portrait-canvas,
.portrait-frame.is-interacting .portrait-canvas { filter: none; }
.portrait-links { position: absolute; z-index: 4; left: 50%; top: 50%; display: flex; gap: 8px; opacity: 0; pointer-events: none; transform: translate(-50%, -50%); transition: opacity .16s ease; }
.portrait-frame:hover .portrait-links, .portrait-frame:focus-within .portrait-links, .portrait-frame.is-interacting .portrait-links { opacity: 1; pointer-events: auto; }
.portrait-links a { display: grid; width: 30px; height: 30px; place-items: center; color: var(--white); background: rgba(23,23,22,.9); }
.portrait-links a:hover, .portrait-links a:focus-visible { color: var(--ink); background: var(--white); outline: 1px solid var(--ink); outline-offset: 2px; }
.portrait-links svg { width: 15px; height: 15px; fill: currentColor; }
.team-member h2 { margin: 14px 0 0; color: var(--ink); font-size: clamp(15px, 1.3vw, 19px); font-weight: 500; font-style: normal; letter-spacing: -.035em; }

/* 08 — Quiet Frame */
.concept-08 { background: #fbfaf7; }
.quiet-frame { position: absolute; inset: 14% 11% 16%; border: 1px solid #d6d5cf; }
.quiet-frame::before { content: "+"; position: absolute; left: -5px; top: -9px; color: var(--orange); font: 16px var(--mono); background: #fbfaf7; }
.concept-08 .hero { left: 18%; }
.quiet-note { position: absolute; right: 14%; bottom: 20%; margin: 0; font: 300 10px/1.7 var(--mono); text-align: right; color: #76746f; }

/* 09 — Data Specimen */
.concept-09 { background: #f1f0eb; }
.data-bar { position: absolute; left: var(--side); right: var(--side); top: 19%; display: flex; justify-content: space-between; border-top: 1px solid #c6c4bd; border-bottom: 1px solid #c6c4bd; padding: 9px 0; font: 400 8px var(--mono); color: #77756f; }
.concept-09 .hero { top: 55%; }
.concept-09 .pixel { background: #1d1d1b; }
.concept-09 .tagline { color: var(--orange); font-family: var(--mono); font-size: 12px; letter-spacing: .02em; }
.barcode { position: absolute; width: 90px; height: 34px; right: var(--side); bottom: 17%; background: repeating-linear-gradient(to right, #222 0 2px, transparent 2px 5px, #222 5px 6px, transparent 6px 9px); }

/* 10 — Orange Horizon */
.concept-10 { background: #f8f6f0; }
.concept-10::after { content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 26%; background: var(--orange); }
.concept-10 .hero { top: 45%; }
.concept-10 .pixel { background: #c2c0b9; }
.horizon { position: absolute; z-index: 3; left: var(--side); right: var(--side); bottom: 12%; display: flex; justify-content: space-between; color: #f8f6f0; font: 400 9px var(--mono); letter-spacing: .1em; }

@media (max-width: 720px) {
  :root { --side: 24px; --top: 24px; }
  .site-header { align-items: flex-start; }
  .site-header nav { gap: 16px; font-size: 11px; }
  .hero-left { top: 47%; }
  .word-lock { --pixel: clamp(4px, 1.72vw, 7px); --gap: 1.5px; max-width: calc(100vw - 48px); }
  .pixel-word { gap: 4px; }
  .tagline { font-size: 12px; }
  .hero-caption { gap: 14px; }
  .institute-label { font-size: 18px; }
  .about-content { padding-top: 112px; padding-bottom: 40px; }
  .about-heading { align-items: flex-end; padding-bottom: 14px; }
  .about-heading h1 { font-size: 24px; }
  .team-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 28px 14px; margin-top: 28px; }
  .team-member h2 { margin-top: 10px; font-size: 14px; }
  .edge-note, .coordinates, .quiet-note { bottom: 20%; font-size: 8px; }
  .usage-hint { display: none; }
  .concept-switcher { bottom: 17px; grid-template-columns: 42px 158px 42px; height: 44px; }
  .concept-02::before { width: 10%; }
  .concept-02 .hero { left: 16%; }
  .chapter-mark { display: none; }
  .concept-04::after { left: 8%; }
  .concept-04 .hero { left: 12%; }
  .registry { display: none; }
  .split-dark { left: 66%; top: 59%; }
  .concept-05 .site-header nav { color: var(--ink); }
  .concept-05 .site-header nav a:first-child { color: var(--orange); }
  .split-caption { display: none; }
  .manifesto { margin-bottom: 34px; font-size: 18px; }
  .concept-06 .hero { left: 15%; }
  .corner-square { right: 5%; bottom: 20%; border-width: 7px; }
  .quiet-frame { inset: 13% 16px 18%; }
  .concept-08 .hero { left: 8%; }
  .data-bar { top: 17%; }
  .data-bar span:nth-child(2) { display: none; }
  .barcode { bottom: 20%; }
  .horizon { bottom: 15%; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; }
  .block-field > i { animation: none !important; }
  .connection-line-pulse { animation: none !important; opacity: 0 !important; }
  .connection-node b { animation: none !important; }
}