:root {
  --color-bg: #fbfaf7;
  --color-surface: #ffffff;
  --color-soft: #f2f0eb;
  --color-text: #171717;
  --color-muted: #5f5f5a;
  --color-line: #dedad1;
  --color-accent: #ff9900;
  --color-accent-soft: #fff2dc;
  --shadow-soft: 0 24px 80px rgba(23, 23, 23, 0.08);
  --radius: 8px;
  --max-width: 1180px;
  --wide-width: 1400px;
  --header-height: 76px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: auto;
}

body {
  margin: 0;
  background:
    linear-gradient(90deg, rgba(23, 23, 23, 0.035) 1px, transparent 1px),
    linear-gradient(rgba(23, 23, 23, 0.035) 1px, transparent 1px),
    var(--color-bg);
  background-size: 42px 42px;
  color: var(--color-text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.5;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  content: "";
  background: radial-gradient(circle at 72% 12%, rgba(255, 153, 0, 0.12), transparent 28rem);
}

img,
svg {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
}

p,
h1,
h2,
h3 {
  margin: 0;
}

.site-header {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: var(--wide-width);
  height: var(--header-height);
  margin-inline: auto;
  padding: 0 clamp(20px, 4vw, 54px);
  border-bottom: 1px solid transparent;
  background: transparent;
  backdrop-filter: blur(0);
  transition:
    height 220ms ease,
    border-color 220ms ease,
    background 220ms ease,
    box-shadow 220ms ease,
    backdrop-filter 220ms ease;
}

.site-header::before {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 0;
  height: 64px;
  pointer-events: none;
  background: transparent;
  content: "";
  transition:
    background 220ms ease,
    box-shadow 220ms ease,
    backdrop-filter 220ms ease;
}

.site-header.is-scrolled {
  position: fixed;
  height: 64px;
  border-bottom-color: rgba(222, 218, 209, 0.72);
  background: transparent;
  box-shadow: none;
  backdrop-filter: blur(18px);
}

.site-header.is-scrolled::before {
  background: rgba(251, 250, 247, 0.88);
  box-shadow: 0 18px 50px rgba(23, 23, 23, 0.06);
  backdrop-filter: blur(18px);
}

.brand {
  position: relative;
  z-index: 1;
  color: var(--color-accent);
}

.brand img {
  width: 174px;
  transition: width 220ms ease;
}

.site-header.is-scrolled .brand img {
  width: 148px;
}

.site-nav {
  position: relative;
  z-index: 1;
  display: flex;
  gap: clamp(14px, 2vw, 28px);
  color: var(--color-muted);
  font-size: 0.9rem;
  opacity: 1;
  transform: translateY(0);
  transition:
    opacity 220ms ease,
    transform 220ms ease;
}

.site-header.is-scrolled .site-nav {
  opacity: 1;
  transform: translateY(0);
}

.site-nav a {
  transition: color 180ms ease;
}

.site-nav a:hover {
  color: var(--color-text);
}

.panel,
.section,
.site-footer {
  padding-inline: clamp(20px, 5vw, 72px);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, 0.64fr);
  gap: clamp(26px, 5vw, 72px);
  align-items: center;
  width: 100%;
  max-width: var(--wide-width);
  min-height: 100svh;
  margin-inline: auto;
  padding-top: clamp(64px, 9vh, 92px);
  padding-bottom: clamp(18px, 4vh, 44px);
}

.hero-inner {
  max-width: 820px;
}

.eyebrow,
.section-kicker {
  margin-bottom: 18px;
  color: var(--color-accent);
  font-size: 0.78rem;
  font-weight: 760;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

h1 {
  max-width: 13ch;
  font-size: clamp(3.25rem, 6.15vw, 6.15rem);
  font-weight: 760;
  line-height: 1;
}

h2 {
  max-width: 930px;
  font-size: clamp(2rem, 4.4vw, 5rem);
  font-weight: 720;
  line-height: 1.02;
}

h3 {
  font-size: clamp(1.15rem, 1.8vw, 1.55rem);
  line-height: 1.12;
}

.hero-copy {
  max-width: 660px;
  margin-top: clamp(18px, 3vh, 28px);
  color: var(--color-muted);
  font-size: clamp(1.08rem, 1.5vw, 1.32rem);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(20px, 3.4vh, 32px);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 18px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  font-weight: 680;
}

.button.primary {
  border-color: var(--color-accent);
  background: var(--color-accent);
  color: #171717;
}

.button.secondary {
  background: rgba(255, 255, 255, 0.64);
}

.system-map {
  position: relative;
  display: grid;
  gap: 12px;
  padding: 18px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.72);
  box-shadow: var(--shadow-soft);
}

.system-node,
.layer-card,
.fragment-card,
.bento-card,
.context-card,
.origin-card,
.model-panel {
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.82);
}

.system-node {
  position: relative;
  min-height: clamp(132px, 20vh, 168px);
  padding: clamp(18px, 2.2vw, 24px);
  overflow: hidden;
}

.system-node span,
.layer-index {
  display: block;
  margin-bottom: clamp(20px, 3vh, 30px);
  color: var(--color-accent);
  font-size: 0.78rem;
  font-weight: 780;
}

.system-node h2 {
  position: relative;
  z-index: 1;
  font-size: clamp(2.1rem, 3.6vw, 3.8rem);
}

.system-node p {
  position: relative;
  z-index: 1;
  color: var(--color-muted);
}

.node-art {
  position: absolute;
  top: 10px;
  right: 10px;
  z-index: 0;
  width: min(54%, 210px);
  height: calc(100% - 20px);
  object-fit: contain;
  object-position: right center;
  mix-blend-mode: multiply;
  opacity: 0.6;
  filter: saturate(0.82) contrast(1.04);
  pointer-events: none;
}

.bms-node .node-art {
  width: min(62%, 232px);
}

.bms-node {
  border-color: rgba(255, 153, 0, 0.58);
  background: linear-gradient(135deg, #fffaf2, #ffffff);
}

.connector {
  width: 2px;
  height: clamp(14px, 2.4vh, 22px);
  margin-left: 34px;
  background: var(--color-accent);
  transform-origin: top;
}

.section {
  max-width: calc(var(--max-width) + 144px);
  margin-inline: auto;
  padding-top: clamp(88px, 13vw, 180px);
  padding-bottom: clamp(88px, 13vw, 180px);
}

.split-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(300px, 0.7fr);
  gap: clamp(30px, 6vw, 90px);
}

.prose {
  color: var(--color-muted);
  font-size: clamp(1.05rem, 1.45vw, 1.25rem);
}

.prose p + p {
  margin-top: 20px;
}

.problem-section h2,
.layers-section h2,
.principles-section h2,
.contexts-section h2 {
  margin-bottom: clamp(28px, 5vw, 64px);
}

.vision-section {
  padding-top: clamp(58px, 7vw, 96px);
  padding-bottom: clamp(54px, 7vw, 96px);
}

.vision-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.78fr) minmax(360px, 1fr);
  gap: clamp(30px, 6vw, 86px);
  align-items: center;
}

.vision-copy {
  position: relative;
  z-index: 1;
}

.vision-copy h2 {
  max-width: 760px;
  font-size: clamp(2.35rem, 3.45vw, 4.05rem);
}

.vision-copy p,
.principles-intro p {
  max-width: 620px;
  margin-top: 26px;
  color: var(--color-muted);
  font-size: clamp(1.05rem, 1.45vw, 1.25rem);
}

.vision-figure {
  min-height: clamp(280px, 38vw, 460px);
  margin: 0;
  padding: clamp(16px, 2.5vw, 28px);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  background:
    linear-gradient(135deg, rgba(255, 153, 0, 0.1), transparent 40%),
    rgba(255, 255, 255, 0.74);
  box-shadow: var(--shadow-soft);
  overflow: hidden;
}

.vision-figure img {
  width: 100%;
  height: 100%;
  min-height: inherit;
  object-fit: contain;
  mix-blend-mode: multiply;
}

.vision-grid {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 12px;
  margin-top: clamp(22px, 4vw, 46px);
}

.vision-card,
.principle-tile {
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.82);
}

.vision-card {
  min-height: 142px;
  padding: 18px;
}

.vision-card span,
.principle-tile span {
  display: block;
  color: var(--color-accent);
  font-size: 0.76rem;
  font-weight: 780;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.vision-card p {
  margin-top: 34px;
  color: var(--color-muted);
  font-size: 0.95rem;
}

.principles-preview-section {
  padding-top: clamp(44px, 6vw, 84px);
}

.principles-intro {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(280px, 0.55fr);
  gap: clamp(28px, 5vw, 72px);
  align-items: end;
  margin-bottom: clamp(28px, 5vw, 58px);
}

.typewriter {
  min-height: 3.1em;
}

.typewriter.is-typing::after {
  display: inline-block;
  width: 2px;
  height: 1em;
  margin-left: 4px;
  background: var(--color-accent);
  vertical-align: -0.12em;
  content: "";
  animation: caretBlink 860ms steps(1) infinite;
}

@keyframes caretBlink {
  50% {
    opacity: 0;
  }
}

.principle-strip {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 14px;
}

.principle-tile {
  min-height: 250px;
  padding: 22px;
  background:
    linear-gradient(180deg, rgba(255, 153, 0, 0.06), transparent 42%),
    rgba(255, 255, 255, 0.82);
}

.principle-tile h3 {
  margin-top: 70px;
}

.principle-tile p {
  margin-top: 14px;
  color: var(--color-muted);
}

.principle-tile-feature {
  border-color: rgba(255, 153, 0, 0.62);
  background:
    linear-gradient(135deg, rgba(255, 153, 0, 0.18), transparent 56%),
    var(--color-surface);
}

.principles-diagram {
  position: relative;
  display: grid;
  grid-template-columns: minmax(220px, 0.78fr) minmax(300px, 1.15fr) minmax(220px, 0.78fr);
  gap: clamp(18px, 3vw, 34px);
  align-items: center;
  margin-top: clamp(22px, 4vw, 52px);
  padding: clamp(20px, 4vw, 42px);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  background:
    radial-gradient(circle at 50% 44%, rgba(255, 153, 0, 0.16), transparent 34%),
    linear-gradient(135deg, rgba(10, 39, 85, 0.04), transparent 42%),
    rgba(255, 255, 255, 0.74);
  overflow: hidden;
}

.principles-diagram::before,
.principles-diagram::after {
  position: absolute;
  top: 50%;
  width: 22%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255, 153, 0, 0.68), transparent);
  content: "";
}

.principles-diagram::before {
  left: 24%;
}

.principles-diagram::after {
  right: 24%;
}

.diagram-column {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 14px;
}

.diagram-note {
  min-height: 118px;
  padding: 18px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-small);
  background: rgba(255, 255, 255, 0.82);
}

.diagram-note-control {
  border-color: rgba(10, 39, 85, 0.18);
  background:
    linear-gradient(135deg, rgba(10, 39, 85, 0.08), transparent 58%),
    rgba(255, 255, 255, 0.82);
}

.diagram-note-information {
  border-color: rgba(32, 112, 84, 0.18);
  background:
    linear-gradient(135deg, rgba(32, 112, 84, 0.08), transparent 58%),
    rgba(255, 255, 255, 0.82);
}

.diagram-note span,
.diagram-core > span,
.diagram-core-axis span {
  color: var(--color-accent);
  font-size: 0.76rem;
  font-weight: 760;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.diagram-note p {
  margin-top: 12px;
  color: var(--color-muted);
  font-size: 0.92rem;
}

.diagram-core {
  position: relative;
  z-index: 1;
  display: grid;
  justify-items: center;
  text-align: center;
}

.diagram-core-model {
  display: grid;
  place-items: center;
  width: min(100%, 340px);
  aspect-ratio: 1;
  margin-top: 18px;
  padding: 34px;
  border: 1px solid rgba(255, 153, 0, 0.74);
  border-radius: 50%;
  background:
    radial-gradient(circle, rgba(255, 153, 0, 0.16), transparent 62%),
    rgba(255, 255, 255, 0.9);
}

.diagram-core-model strong {
  max-width: 10ch;
  color: var(--color-text);
  font-size: clamp(1.55rem, 2.6vw, 2.6rem);
  line-height: 0.98;
}

.diagram-core-model p {
  max-width: 230px;
  margin-top: -18px;
  color: var(--color-muted);
  font-size: 0.9rem;
}

.diagram-core-axis {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  width: min(100%, 440px);
  margin-top: 18px;
}

.diagram-core-axis span {
  padding: 12px 10px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-small);
  background: rgba(255, 255, 255, 0.78);
}

.diagram-core-axis .diagram-axis-control {
  border-color: rgba(10, 39, 85, 0.2);
  background:
    linear-gradient(135deg, rgba(10, 39, 85, 0.1), transparent 64%),
    rgba(255, 255, 255, 0.82);
  color: #0a2755;
}

.diagram-core-axis .diagram-axis-evolution {
  border-color: rgba(255, 153, 0, 0.34);
  background:
    linear-gradient(135deg, rgba(255, 153, 0, 0.14), transparent 64%),
    rgba(255, 255, 255, 0.82);
  color: var(--color-accent);
}

.diagram-core-axis .diagram-axis-information {
  border-color: rgba(32, 112, 84, 0.24);
  background:
    linear-gradient(135deg, rgba(32, 112, 84, 0.12), transparent 64%),
    rgba(255, 255, 255, 0.82);
  color: #207054;
}

.principles-bridge {
  max-width: 760px;
  margin: clamp(26px, 4vw, 48px) auto 0;
  color: var(--color-muted);
  font-size: clamp(1.05rem, 1.45vw, 1.25rem);
  text-align: center;
}

.architecture-section {
  padding-top: clamp(70px, 9vw, 128px);
}

.architecture-intro {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(280px, 0.55fr);
  gap: clamp(28px, 5vw, 72px);
  align-items: end;
  margin-bottom: clamp(30px, 5vw, 62px);
}

.architecture-intro p,
.operation-copy p {
  max-width: 620px;
  color: var(--color-muted);
  font-size: clamp(1.05rem, 1.45vw, 1.25rem);
}

.architecture-flow {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.16fr) minmax(0, 0.82fr);
  gap: 14px;
  align-items: stretch;
}

.architecture-flow-line {
  position: absolute;
  top: 50%;
  left: 12%;
  right: 12%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--color-accent), transparent);
  transform: translateY(-50%);
  transform-origin: center;
}

.architecture-layer,
.architecture-core,
.operation-card,
.industrial-card,
.implantation-step {
  position: relative;
  z-index: 1;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.86);
}

.architecture-layer,
.architecture-core {
  min-height: 360px;
  padding: 22px;
  overflow: hidden;
}

.architecture-core {
  min-height: 500px;
  border-color: rgba(255, 153, 0, 0.62);
  background:
    linear-gradient(135deg, rgba(255, 153, 0, 0.14), transparent 52%),
    rgba(255, 255, 255, 0.9);
  box-shadow: var(--shadow-soft);
}

.architecture-layer span,
.architecture-core span,
.operation-card span,
.industrial-card span,
.implantation-step span {
  display: block;
  color: var(--color-accent);
  font-size: 0.76rem;
  font-weight: 780;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.architecture-layer img,
.architecture-core img {
  width: 100%;
  height: 170px;
  margin-top: 12px;
  object-fit: contain;
  mix-blend-mode: multiply;
}

.architecture-core img {
  height: 210px;
}

.architecture-layer h3,
.architecture-core h3 {
  margin-top: 18px;
}

.architecture-layer p,
.architecture-core p,
.operation-card p,
.industrial-card p,
.implantation-step p {
  margin-top: 12px;
  color: var(--color-muted);
}

.model-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 20px;
}

.model-tags span {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  padding: 8px 10px;
  border: 1px solid rgba(255, 153, 0, 0.28);
  border-radius: 999px;
  background:
    linear-gradient(135deg, rgba(255, 153, 0, 0.12), transparent 68%),
    rgba(255, 255, 255, 0.78);
  color: var(--color-text);
  font-size: 0.75rem;
  font-weight: 720;
  letter-spacing: 0;
  text-transform: none;
}

.architecture-bridge {
  max-width: 880px;
  margin: clamp(20px, 4vw, 44px) auto 0;
  padding: clamp(22px, 3vw, 34px);
  border: 1px solid rgba(255, 153, 0, 0.5);
  border-radius: var(--radius);
  background:
    linear-gradient(90deg, rgba(255, 153, 0, 0.12), transparent),
    rgba(255, 255, 255, 0.82);
  text-align: center;
}

.architecture-bridge p {
  font-size: clamp(1.4rem, 2.6vw, 2.4rem);
  font-weight: 720;
  line-height: 1.08;
}

.operation-section {
  padding-top: clamp(70px, 9vw, 128px);
}

.operation-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.86fr) minmax(320px, 0.72fr);
  gap: clamp(30px, 6vw, 84px);
  align-items: center;
}

.operation-copy p {
  margin-top: 26px;
}

.operation-orbit {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 390px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  background:
    radial-gradient(circle, rgba(255, 153, 0, 0.12), transparent 44%),
    rgba(255, 255, 255, 0.78);
  box-shadow: var(--shadow-soft);
}

.operation-orbit::before,
.operation-orbit::after {
  position: absolute;
  border: 1px solid rgba(255, 153, 0, 0.38);
  border-radius: 50%;
  content: "";
}

.operation-orbit::before {
  width: 62%;
  aspect-ratio: 1;
}

.operation-orbit::after {
  width: 34%;
  aspect-ratio: 1;
  background: rgba(255, 255, 255, 0.56);
}

.operation-orbit strong {
  position: relative;
  z-index: 2;
  display: grid;
  place-items: center;
  width: 34%;
  aspect-ratio: 1;
  border: 1px solid rgba(255, 153, 0, 0.5);
  border-radius: 50%;
  background:
    radial-gradient(circle, rgba(255, 153, 0, 0.14), transparent 66%),
    rgba(255, 255, 255, 0.86);
  color: var(--color-text);
  font-size: clamp(1rem, 1.45vw, 1.25rem);
  line-height: 1.05;
  text-align: center;
}

.operation-orbit span {
  position: absolute;
  z-index: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 108px;
  min-height: 42px;
  padding: 0 14px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.9);
  color: var(--color-muted);
  font-size: 0.88rem;
  font-weight: 700;
}

.operation-orbit span:nth-child(2) {
  top: 12%;
  left: 50%;
  transform: translateX(-50%);
}

.operation-orbit span:nth-child(3) {
  top: 36%;
  right: 8%;
}

.operation-orbit span:nth-child(4) {
  bottom: 14%;
  right: 20%;
}

.operation-orbit span:nth-child(5) {
  bottom: 14%;
  left: 18%;
}

.operation-orbit span:nth-child(6) {
  top: 36%;
  left: 7%;
}

.operation-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-top: clamp(26px, 4vw, 54px);
}

.operation-card {
  min-height: 176px;
  padding: 20px;
}

.industrial-section {
  padding-top: clamp(70px, 9vw, 128px);
}

.industrial-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(360px, 0.86fr);
  gap: clamp(30px, 6vw, 84px);
  align-items: center;
}

.industrial-copy p {
  max-width: 640px;
  margin-top: 26px;
  color: var(--color-muted);
  font-size: clamp(1.05rem, 1.45vw, 1.25rem);
}

.industrial-panel {
  min-height: clamp(280px, 32vw, 420px);
  padding: clamp(18px, 3vw, 34px);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  background:
    linear-gradient(135deg, rgba(255, 153, 0, 0.1), transparent 46%),
    rgba(255, 255, 255, 0.78);
  box-shadow: var(--shadow-soft);
}

.industrial-panel img {
  width: 100%;
  height: 100%;
  min-height: inherit;
  object-fit: contain;
  mix-blend-mode: multiply;
}

.industrial-grid,
.implantation-grid {
  display: grid;
  gap: 14px;
  margin-top: clamp(26px, 4vw, 54px);
}

.industrial-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.industrial-card {
  min-height: 184px;
  padding: 20px;
  background:
    linear-gradient(180deg, rgba(255, 153, 0, 0.05), transparent 42%),
    rgba(255, 255, 255, 0.84);
}

.implantation-section {
  padding-top: clamp(70px, 9vw, 128px);
}

.implantation-card {
  max-width: 1040px;
  padding: clamp(30px, 5vw, 62px);
  border: 1px solid rgba(255, 153, 0, 0.42);
  border-radius: var(--radius);
  background:
    linear-gradient(135deg, rgba(255, 153, 0, 0.14), transparent 48%),
    rgba(255, 255, 255, 0.84);
  box-shadow: var(--shadow-soft);
}

.implantation-card p:last-child {
  max-width: 720px;
  margin-top: 28px;
  color: var(--color-muted);
  font-size: clamp(1.05rem, 1.45vw, 1.22rem);
}

.implantation-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.implantation-step {
  min-height: 220px;
  padding: 22px;
}

.implantation-step h3 {
  margin-top: 54px;
}

.fragment-grid,
.bento-grid,
.context-grid {
  display: grid;
  gap: 16px;
}

.fragment-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.fragment-card {
  min-height: 230px;
  padding: 22px;
}

.fragment-card span {
  display: block;
  width: 28px;
  height: 28px;
  margin-bottom: 48px;
  border: 1px solid var(--color-accent);
  border-radius: 50%;
}

.fragment-card p,
.layer-card p,
.bento-card p {
  margin-top: 14px;
  color: var(--color-muted);
}

.model-panel {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(280px, 0.7fr);
  gap: clamp(28px, 5vw, 74px);
  padding: clamp(28px, 5vw, 58px);
  background:
    linear-gradient(90deg, rgba(255, 153, 0, 0.14) 1px, transparent 1px),
    linear-gradient(rgba(255, 153, 0, 0.12) 1px, transparent 1px),
    var(--color-surface);
  background-size: 28px 28px;
}

.model-panel p:last-child {
  align-self: end;
  color: var(--color-muted);
  font-size: clamp(1.08rem, 1.5vw, 1.28rem);
}

.layers-grid {
  display: grid;
  grid-template-columns: 0.8fr 1.4fr 0.8fr;
  gap: 16px;
  align-items: stretch;
}

.layer-card {
  min-height: 330px;
  padding: 26px;
}

.layer-card-feature {
  min-height: 430px;
  border-color: rgba(255, 153, 0, 0.62);
  background: var(--color-accent-soft);
}

.layer-card-feature h3 {
  font-size: clamp(2.6rem, 5vw, 5rem);
}

.bridge-section {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(320px, 1fr);
  gap: clamp(32px, 6vw, 86px);
  align-items: center;
  min-height: 100vh;
  background: #181714;
  color: #fffaf0;
}

.bridge-copy h2 {
  max-width: 830px;
}

.bridge-diagram {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  padding: clamp(22px, 4vw, 42px);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--radius);
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.06) 1px, transparent 1px),
    linear-gradient(rgba(255, 255, 255, 0.06) 1px, transparent 1px);
  background-size: 34px 34px;
}

.bridge-node {
  min-height: 92px;
  padding: 24px;
  border: 1px solid rgba(255, 153, 0, 0.42);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.04);
  color: #fff;
  font-size: clamp(1.6rem, 3vw, 3rem);
  font-weight: 760;
}

.bridge-node-main {
  background: rgba(255, 153, 0, 0.18);
}

.bridge-line {
  width: 2px;
  height: 36px;
  margin-left: 34px;
  background: var(--color-accent);
  transform-origin: top;
}

.bento-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.bento-card {
  min-height: 220px;
  padding: 24px;
}

.bento-card.large {
  grid-column: span 2;
  grid-row: span 2;
  min-height: 456px;
  background: #181714;
  color: #fffaf0;
}

.bento-card.large p {
  color: rgba(255, 250, 240, 0.72);
}

.lifecycle-section {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(320px, 0.9fr);
  gap: clamp(36px, 7vw, 96px);
}

.timeline {
  display: grid;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: timeline;
}

.timeline li {
  counter-increment: timeline;
  min-height: 84px;
  padding: 22px 22px 22px 68px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.78);
  color: var(--color-muted);
}

.timeline li::before {
  float: left;
  width: 36px;
  margin-left: -46px;
  color: var(--color-accent);
  font-weight: 780;
  content: counter(timeline, decimal-leading-zero);
}

.origin-card {
  max-width: 980px;
  padding: clamp(30px, 5vw, 62px);
  background:
    linear-gradient(135deg, rgba(255, 153, 0, 0.12), transparent 42%),
    var(--color-surface);
}

.origin-card p:last-child {
  max-width: 720px;
  margin-top: 28px;
  color: var(--color-muted);
  font-size: clamp(1.05rem, 1.45vw, 1.22rem);
}

.context-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.context-card {
  display: flex;
  align-items: end;
  min-height: 180px;
  padding: 22px;
  color: var(--color-text);
  font-size: clamp(1.1rem, 1.8vw, 1.6rem);
  font-weight: 700;
}

.dossier-section {
  padding-top: clamp(70px, 9vw, 128px);
}

.applicability-section {
  padding-top: clamp(70px, 9vw, 128px);
}

.applicability-panel {
  max-width: 1060px;
  padding: clamp(30px, 5vw, 62px);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  background:
    radial-gradient(circle at 88% 18%, rgba(255, 153, 0, 0.13), transparent 28rem),
    rgba(255, 255, 255, 0.84);
  box-shadow: var(--shadow-soft);
}

.applicability-panel p {
  max-width: 760px;
  margin-top: 28px;
  color: var(--color-muted);
  font-size: clamp(1.05rem, 1.45vw, 1.22rem);
}

.applicability-map {
  position: relative;
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 12px;
  margin-top: 14px;
}

.applicability-map::before {
  position: absolute;
  top: 50%;
  left: 5%;
  right: 5%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255, 153, 0, 0.7), transparent);
  content: "";
}

.applicability-node {
  position: relative;
  min-height: 190px;
  padding: 18px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.86);
}

.applicability-node::before {
  display: block;
  width: 18px;
  height: 18px;
  margin-bottom: 34px;
  border: 1px solid var(--color-accent);
  border-radius: 50%;
  background: var(--color-surface);
  content: "";
}

.applicability-node span {
  color: var(--color-text);
  font-weight: 720;
}

.applicability-node p {
  margin-top: 14px;
  color: var(--color-muted);
  font-size: 0.94rem;
}

.team-section {
  padding-top: clamp(70px, 9vw, 128px);
}

.team-intro {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(280px, 0.55fr);
  gap: clamp(28px, 5vw, 72px);
  align-items: end;
  margin-bottom: clamp(30px, 5vw, 62px);
}

.team-intro p {
  max-width: 620px;
  color: var(--color-muted);
  font-size: clamp(1.05rem, 1.45vw, 1.25rem);
}

.team-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.88fr) minmax(0, 1.14fr) minmax(0, 0.88fr);
  gap: 14px;
}

.team-card {
  position: relative;
  min-height: 360px;
  padding: 24px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.84);
}

.team-card-feature {
  border-color: rgba(255, 153, 0, 0.6);
  background:
    linear-gradient(135deg, rgba(255, 153, 0, 0.14), transparent 52%),
    rgba(255, 255, 255, 0.88);
  box-shadow: var(--shadow-soft);
}

.team-card span {
  display: block;
  margin-bottom: 56px;
  color: var(--color-accent);
  font-size: 0.76rem;
  font-weight: 780;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.team-logo {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  height: 76px;
  margin-bottom: 18px;
}

.team-logo img {
  max-width: 132px;
  max-height: 76px;
  object-fit: contain;
}

.team-logo-medios img,
.team-logo-archinauta img {
  width: 74px;
  height: 74px;
}

.team-logo-xpiral img {
  max-width: 150px;
}

.team-card p {
  margin-top: 16px;
  color: var(--color-muted);
}

.team-card a {
  display: inline-flex;
  margin-top: 24px;
  color: var(--color-text);
  font-weight: 720;
}

.dossier-card {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(320px, 0.58fr);
  gap: clamp(30px, 6vw, 84px);
  align-items: end;
  padding: clamp(30px, 5vw, 62px);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  background:
    linear-gradient(90deg, rgba(255, 153, 0, 0.1), transparent 54%),
    rgba(255, 255, 255, 0.84);
  box-shadow: var(--shadow-soft);
}

.dossier-card p {
  color: var(--color-muted);
  font-size: clamp(1.05rem, 1.45vw, 1.2rem);
}

.dossier-card .button {
  margin-top: 26px;
}

.dossier-index {
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin-top: 14px;
}

.dossier-index::before {
  position: absolute;
  top: 34px;
  left: 5%;
  right: 5%;
  height: calc(100% - 112px);
  background:
    linear-gradient(90deg, transparent, rgba(255, 153, 0, 0.72), transparent) top / 100% 1px no-repeat,
    linear-gradient(90deg, transparent, rgba(255, 153, 0, 0.72), transparent) bottom / 100% 1px no-repeat;
  content: "";
}

.dossier-chapter {
  position: relative;
  min-height: 112px;
  padding: 16px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.8);
}

.dossier-chapter span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: 1px solid rgba(255, 153, 0, 0.62);
  border-radius: 50%;
  background: var(--color-surface);
  color: var(--color-accent);
  font-size: 0.76rem;
  font-weight: 780;
}

.dossier-chapter strong {
  display: block;
  margin-top: 26px;
  color: var(--color-muted);
  font-weight: 700;
}

.site-footer {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 0.45fr);
  gap: clamp(32px, 6vw, 90px);
  align-items: end;
  width: 100%;
  max-width: var(--wide-width);
  margin-inline: auto;
  padding-top: clamp(70px, 10vw, 130px);
  padding-bottom: clamp(36px, 6vw, 72px);
  background: #181714;
  box-shadow: 0 0 0 100vmax #181714;
  clip-path: inset(0 -100vmax);
  color: #fffaf0;
}

.footer-logo {
  display: block;
  width: 210px;
  margin-bottom: 34px;
  filter: brightness(0) saturate(100%) invert(65%) sepia(91%) saturate(2447%) hue-rotate(359deg) brightness(102%) contrast(105%);
}

.site-footer h2 {
  max-width: 840px;
}

.site-footer address {
  color: rgba(255, 250, 240, 0.72);
  font-style: normal;
}

.footer-contacts {
  display: grid;
  gap: 28px;
}

.site-footer strong,
.site-footer a {
  color: #fffaf0;
}

.reveal {
  will-change: transform, opacity;
}

@media (max-width: 980px) {
  .hero,
  .split-layout,
  .vision-layout,
  .principles-intro,
  .principles-diagram,
  .architecture-intro,
  .operation-layout,
  .industrial-layout,
  .team-intro,
  .dossier-card,
  .model-panel,
  .bridge-section,
  .lifecycle-section,
  .site-footer {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
    padding-top: calc(var(--header-height) + 24px);
  }

  h1 {
    max-width: 9ch;
  }

  .fragment-grid,
  .vision-grid,
  .layers-grid,
  .bento-grid,
  .context-grid,
  .principle-strip,
  .operation-grid,
  .industrial-grid,
  .implantation-grid,
  .applicability-map,
  .team-grid,
  .dossier-index {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .architecture-flow {
    grid-template-columns: 1fr;
  }

  .principles-diagram::before,
  .principles-diagram::after {
    display: none;
  }

  .diagram-column-left {
    order: 2;
  }

  .diagram-core {
    order: 1;
  }

  .diagram-column-right {
    order: 3;
  }

  .architecture-flow-line {
    top: 10%;
    bottom: 10%;
    left: 34px;
    right: auto;
    width: 2px;
    height: auto;
    transform: none;
  }

  .layer-card-feature,
  .bento-card.large {
    min-height: 320px;
  }
}

@media (max-width: 720px) {
  :root {
    --header-height: 68px;
  }

  .site-header {
    padding-inline: 18px;
  }

  .brand img {
    width: 142px;
  }

  .site-nav {
    display: none;
  }

  h1 {
    max-width: 11ch;
    font-size: clamp(2.75rem, 14.5vw, 4.4rem);
  }

  h2 {
    font-size: clamp(2rem, 11vw, 3.6rem);
  }

  .hero-actions,
  .button {
    width: 100%;
  }

  .fragment-grid,
  .vision-grid,
  .layers-grid,
  .bento-grid,
  .context-grid,
  .principle-strip,
  .operation-grid,
  .industrial-grid,
  .implantation-grid,
  .applicability-map,
  .team-grid,
  .dossier-index {
    grid-template-columns: 1fr;
  }

  .applicability-map::before {
    display: none;
  }

  .diagram-core-axis {
    grid-template-columns: 1fr;
  }

  .operation-orbit {
    min-height: 330px;
  }

  .dossier-index::before {
    display: none;
  }

  .bento-card.large {
    grid-column: auto;
    grid-row: auto;
  }
}