/* Hallmark · pre-emit critique: P4 H4 E4 S4 R4 V4 */
:root {
  --font-display: ui-sans-serif, -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
  --font-body: ui-sans-serif, -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
  --color-ink: #102247;
  --color-ink-2: #314566;
  --color-muted: #6d7e95;
  --color-paper: #ffffff;
  --color-paper-2: #f5f8fc;
  --color-paper-3: #eaf2fb;
  --color-line: #d9e5f2;
  --color-line-2: #edf3f8;
  --color-accent: #1179df;
  --color-accent-2: #2fb4e8;
  --color-mint: #20c99b;
  --color-warm: #f8a24b;
  --color-alert: #ff6363;
  --color-deep: #08162e;
  --color-deep-2: #122d5c;
  --color-shadow: rgba(34, 74, 124, 0.15);
  --color-shadow-2: rgba(8, 22, 46, 0.22);
  --color-glass: rgba(255, 255, 255, 0.78);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 48px;
  --space-8: 72px;
  --max-page: 1180px;
  --header-height: 68px;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-width: 0;
  overflow-x: clip;
  scroll-behavior: smooth;
}

body {
  background: var(--color-paper-2);
  color: var(--color-ink);
  font-family: var(--font-body);
  letter-spacing: 0;
}

body::selection {
  background: color-mix(in oklab, var(--color-accent) 18%, var(--color-paper));
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

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

section[id] {
  scroll-margin-top: calc(var(--header-height) + var(--space-5));
}

button {
  font: inherit;
}

.scroll-meter {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 80;
  height: 3px;
  background: transparent;
}

.scroll-meter span {
  display: block;
  width: 0%;
  height: 100%;
  background: linear-gradient(90deg, var(--color-accent), var(--color-mint), var(--color-warm));
  transform-origin: left;
}

.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 70;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: var(--header-height);
  padding: 0 clamp(var(--space-4), 4vw, var(--space-7));
  color: var(--color-paper);
  background: color-mix(in oklab, var(--color-deep) 82%, transparent);
  border-bottom: 1px solid color-mix(in oklab, var(--color-paper) 14%, transparent);
  backdrop-filter: blur(18px);
}

.brand,
.nav-links {
  display: flex;
  align-items: center;
}

.brand {
  gap: var(--space-3);
  min-width: 0;
  font-weight: 800;
}

.brand-mark {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background:
    linear-gradient(140deg, var(--color-accent) 0 46%, transparent 47%),
    linear-gradient(320deg, var(--color-warm) 0 28%, transparent 29%),
    var(--color-paper);
  border: 2px solid color-mix(in oklab, var(--color-paper) 80%, transparent);
  box-shadow: 0 10px 24px color-mix(in oklab, var(--color-accent) 30%, transparent);
  flex: 0 0 auto;
}

.nav-links {
  gap: clamp(var(--space-3), 3vw, var(--space-6));
  color: color-mix(in oklab, var(--color-paper) 82%, transparent);
  font-size: 14px;
  white-space: nowrap;
}

.nav-links a {
  position: relative;
  display: inline-flex;
  align-items: center;
  min-height: 36px;
}

.nav-links a::after {
  position: absolute;
  right: 0;
  bottom: 4px;
  left: 0;
  height: 2px;
  content: "";
  background: var(--color-mint);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 220ms ease;
}

.nav-links a:hover::after,
.nav-links a:focus-visible::after {
  transform: scaleX(1);
}

.section-band {
  position: relative;
}

.hero {
  min-height: 100vh;
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  gap: clamp(var(--space-6), 5vw, var(--space-8));
  align-items: center;
  padding: calc(var(--header-height) + var(--space-7)) clamp(var(--space-4), 5vw, var(--space-8)) var(--space-7);
  background:
    linear-gradient(115deg, var(--color-deep) 0 42%, var(--color-accent) 42% 62%, var(--color-paper-2) 62% 100%);
  color: var(--color-paper);
  isolation: isolate;
}

.hero::after {
  position: absolute;
  right: 0;
  bottom: 0;
  z-index: -1;
  width: min(56vw, 780px);
  height: 44%;
  content: "";
  background:
    linear-gradient(135deg, transparent 0 42%, color-mix(in oklab, var(--color-accent-2) 42%, transparent) 43% 58%, transparent 59%),
    linear-gradient(165deg, transparent 0 55%, color-mix(in oklab, var(--color-mint) 34%, transparent) 56% 62%, transparent 63%);
  clip-path: polygon(18% 0, 100% 0, 100% 100%, 0 100%);
}

.hero-grid {
  position: absolute;
  inset: var(--header-height) 0 0 0;
  z-index: -2;
  background-image:
    linear-gradient(color-mix(in oklab, var(--color-paper) 10%, transparent) 1px, transparent 1px),
    linear-gradient(90deg, color-mix(in oklab, var(--color-paper) 10%, transparent) 1px, transparent 1px);
  background-size: 54px 54px;
  mask-image: linear-gradient(90deg, var(--color-deep) 0, transparent 72%);
  animation: gridDrift 18s linear infinite;
}

.hero-copy {
  max-width: 560px;
}

.eyebrow,
.section-kicker {
  margin: 0 0 var(--space-4);
  color: var(--color-accent-2);
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
}

.hero .eyebrow {
  color: color-mix(in oklab, var(--color-mint) 78%, var(--color-paper));
}

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

h1,
h2,
h3 {
  font-family: var(--font-display);
  letter-spacing: 0;
}

h1 {
  margin-bottom: var(--space-5);
  font-size: 56px;
  line-height: 1.04;
  overflow-wrap: anywhere;
}

h2 {
  margin-bottom: var(--space-4);
  font-size: 36px;
  line-height: 1.18;
  overflow-wrap: anywhere;
}

h3 {
  margin-bottom: var(--space-3);
  font-size: 20px;
  line-height: 1.25;
}

.lead {
  margin-bottom: var(--space-6);
  color: color-mix(in oklab, var(--color-paper) 78%, transparent);
  font-size: 17px;
  line-height: 1.85;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.primary-action,
.text-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  border-radius: var(--radius-sm);
  font-weight: 800;
  white-space: nowrap;
}

.primary-action {
  padding: 0 var(--space-5);
  color: var(--color-paper);
  background: var(--color-accent);
  box-shadow: 0 16px 32px color-mix(in oklab, var(--color-accent) 34%, transparent);
  transition: transform 180ms ease, box-shadow 180ms ease;
}

.primary-action:hover,
.primary-action:focus-visible {
  transform: translateY(-2px);
  box-shadow: 0 20px 44px color-mix(in oklab, var(--color-accent) 46%, transparent);
}

.primary-action.light {
  color: var(--color-deep);
  background: var(--color-paper);
  box-shadow: 0 18px 48px color-mix(in oklab, var(--color-deep) 50%, transparent);
}

.text-action {
  padding: 0 var(--space-4);
  color: color-mix(in oklab, var(--color-paper) 84%, transparent);
  border: 1px solid color-mix(in oklab, var(--color-paper) 24%, transparent);
}

.hero-stage {
  position: relative;
  min-width: 0;
  transform: translate3d(0, 0, 0);
}

.hero-shot {
  position: relative;
  margin: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid color-mix(in oklab, var(--color-paper) 60%, transparent);
  box-shadow: 0 34px 86px var(--color-shadow-2);
}

.hero-shot::before {
  position: absolute;
  inset: 0;
  content: "";
  background: linear-gradient(120deg, transparent 0 38%, color-mix(in oklab, var(--color-paper) 35%, transparent) 44%, transparent 50% 100%);
  transform: translateX(-120%);
  animation: sheen 5.5s ease-in-out infinite;
  pointer-events: none;
}

.floating-card {
  position: absolute;
  width: 150px;
  min-height: 118px;
  padding: var(--space-4);
  color: var(--color-ink);
  background: var(--color-glass);
  border: 1px solid color-mix(in oklab, var(--color-paper) 66%, transparent);
  border-radius: var(--radius-md);
  box-shadow: 0 22px 48px var(--color-shadow);
  backdrop-filter: blur(18px);
  animation: float 4.8s ease-in-out infinite;
}

.card-one {
  top: 8%;
  left: -36px;
}

.card-two {
  right: -28px;
  bottom: 10%;
  animation-delay: 900ms;
}

.card-label {
  display: block;
  margin-bottom: var(--space-2);
  color: var(--color-muted);
  font-size: 13px;
}

.floating-card strong {
  display: block;
  margin-bottom: var(--space-3);
  font-size: 34px;
  line-height: 1;
}

.mini-line {
  display: block;
  height: 8px;
  border-radius: 99px;
  background:
    linear-gradient(90deg, var(--color-accent) 0 68%, var(--color-line) 68% 100%);
}

.mini-bars {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  align-items: end;
  gap: var(--space-1);
  height: 34px;
}

.mini-bars i {
  display: block;
  border-radius: 5px 5px 0 0;
  background: var(--color-accent);
  animation: growBar 1.2s ease both;
}

.mini-bars i:nth-child(1) { height: 46%; }
.mini-bars i:nth-child(2) { height: 72%; background: var(--color-mint); animation-delay: 120ms; }
.mini-bars i:nth-child(3) { height: 58%; background: var(--color-warm); animation-delay: 240ms; }
.mini-bars i:nth-child(4) { height: 88%; animation-delay: 360ms; }

.case-intro,
.design-system,
.module-section,
.workflow,
.analysis-section,
.detail-gallery {
  width: min(var(--max-page), calc(100% - 32px));
  margin: 0 auto;
  padding: var(--space-8) 0;
}

.intro-layout,
.section-head.split {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
  gap: clamp(var(--space-5), 5vw, var(--space-7));
  align-items: start;
}

.intro-title h2 {
  margin-bottom: 0;
}

.intro-body p,
.section-aside,
.note-card p,
.signal-card p,
.module-copy p,
.flow-track p,
.spotlight-copy p {
  color: var(--color-muted);
  font-size: 15px;
  line-height: 1.78;
}

.signal-row {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-4);
  margin-top: var(--space-6);
}

.signal-card,
.note-card {
  position: relative;
  min-width: 0;
  padding: var(--space-5);
  background: var(--color-paper);
  border: 1px solid var(--color-line-2);
  border-radius: var(--radius-md);
  box-shadow: 0 18px 42px color-mix(in oklab, var(--color-shadow) 58%, transparent);
  overflow: hidden;
}

.signal-card::after,
.note-card::after {
  position: absolute;
  inset: auto 0 0;
  height: 3px;
  content: "";
  background: linear-gradient(90deg, var(--color-accent), var(--color-mint), var(--color-warm));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 650ms ease;
}

.signal-card.is-visible::after,
.note-card.is-visible::after {
  transform: scaleX(1);
}

.signal-index,
.module-index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 42px;
  min-height: 30px;
  margin-bottom: var(--space-4);
  color: var(--color-accent);
  background: color-mix(in oklab, var(--color-accent) 10%, var(--color-paper));
  border-radius: var(--radius-sm);
  font-weight: 900;
}

.design-system {
  width: 100%;
  max-width: none;
  padding-right: max(var(--space-4), calc((100vw - var(--max-page)) / 2));
  padding-left: max(var(--space-4), calc((100vw - var(--max-page)) / 2));
  background:
    linear-gradient(180deg, var(--color-paper) 0, var(--color-paper-2) 100%);
}

.section-head {
  max-width: 860px;
  margin-bottom: var(--space-6);
}

.section-head h2 {
  margin-bottom: 0;
}

.system-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(280px, 0.38fr);
  gap: var(--space-6);
  align-items: start;
}

.spec-sheet {
  max-height: 760px;
  margin: 0;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--color-paper);
  box-shadow: 0 24px 64px var(--color-shadow);
}

.spec-sheet img {
  width: 100%;
  transform: translateY(0);
  transition: transform 2.2s cubic-bezier(0.22, 1, 0.36, 1);
}

.spec-sheet.is-visible img {
  transform: translateY(-14%);
}

.system-notes {
  display: grid;
  gap: var(--space-4);
  position: sticky;
  top: calc(var(--header-height) + var(--space-5));
}

.note-dot {
  display: block;
  width: 12px;
  height: 12px;
  margin-bottom: var(--space-4);
  border-radius: 50%;
  background: var(--color-mint);
  box-shadow: 0 0 0 8px color-mix(in oklab, var(--color-mint) 14%, transparent);
}

.note-card:nth-child(2) .note-dot {
  background: var(--color-accent);
  box-shadow: 0 0 0 8px color-mix(in oklab, var(--color-accent) 14%, transparent);
}

.note-card:nth-child(3) .note-dot {
  background: var(--color-warm);
  box-shadow: 0 0 0 8px color-mix(in oklab, var(--color-warm) 16%, transparent);
}

.spotlight {
  padding: var(--space-8) clamp(var(--space-4), 5vw, var(--space-8));
  background: var(--color-deep);
}

.dark-panel {
  width: min(var(--max-page), 100%);
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 0.75fr) minmax(0, 1.25fr);
  gap: var(--space-7);
  align-items: center;
  min-height: 640px;
  padding: clamp(var(--space-5), 5vw, var(--space-7));
  color: var(--color-paper);
  background:
    linear-gradient(135deg, color-mix(in oklab, var(--color-deep-2) 72%, transparent), var(--color-deep)),
    linear-gradient(90deg, color-mix(in oklab, var(--color-paper) 10%, transparent) 1px, transparent 1px);
  border: 1px solid color-mix(in oklab, var(--color-paper) 12%, transparent);
  border-radius: var(--radius-lg);
  overflow: hidden;
  position: relative;
}

.dark-panel::before {
  position: absolute;
  inset: 0;
  content: "";
  background:
    linear-gradient(120deg, transparent 0 16%, color-mix(in oklab, var(--color-accent-2) 18%, transparent) 17% 18%, transparent 19% 100%),
    linear-gradient(145deg, transparent 0 72%, color-mix(in oklab, var(--color-warm) 16%, transparent) 73% 75%, transparent 76% 100%);
  pointer-events: none;
}

.spotlight-copy {
  position: relative;
  z-index: 2;
}

.spotlight-copy h2 {
  color: var(--color-paper);
}

.spotlight-copy p {
  color: color-mix(in oklab, var(--color-paper) 70%, transparent);
  margin-bottom: var(--space-6);
}

.spotlight-stack {
  position: relative;
  z-index: 1;
  min-height: 470px;
  transform: translate3d(0, 0, 0);
}

.screen-card {
  margin: 0;
  overflow: hidden;
  border: 1px solid color-mix(in oklab, var(--color-paper) 22%, transparent);
  border-radius: var(--radius-sm);
  background: var(--color-paper);
  box-shadow: 0 30px 80px color-mix(in oklab, var(--color-deep) 78%, transparent);
}

.main-screen {
  width: 78%;
  transform: rotate(-2deg) translateY(20px);
}

.side-screen {
  position: absolute;
  right: 0;
  bottom: 8px;
  width: 58%;
  transform: rotate(3deg);
}

.module-section {
  padding-top: var(--space-8);
}

.section-head.split {
  max-width: none;
  align-items: end;
}

.module-tabs {
  display: flex;
  justify-content: flex-end;
  gap: var(--space-2);
  flex-wrap: wrap;
}

.tab-button {
  min-height: 38px;
  padding: 0 var(--space-4);
  color: var(--color-muted);
  background: var(--color-paper);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: color 180ms ease, background 180ms ease, border-color 180ms ease, transform 180ms ease;
}

.tab-button:hover,
.tab-button:focus-visible {
  color: var(--color-accent);
  transform: translateY(-1px);
}

.tab-button.is-active {
  color: var(--color-paper);
  background: var(--color-accent);
  border-color: var(--color-accent);
}

.module-view {
  position: relative;
  min-height: 680px;
  padding: var(--space-5);
  background: var(--color-paper);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  box-shadow: 0 24px 64px var(--color-shadow);
  overflow: hidden;
}

.module-pane {
  display: grid;
  grid-template-columns: minmax(230px, 0.36fr) minmax(0, 0.64fr);
  gap: var(--space-5);
  align-items: center;
  opacity: 0;
  transform: translateY(18px);
  pointer-events: none;
  transition: opacity 300ms ease, transform 300ms ease;
  position: absolute;
  inset: var(--space-5);
}

.module-pane.is-active {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.module-copy {
  align-self: center;
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: 320px;
  padding: clamp(var(--space-4), 4vw, var(--space-6));
  border-radius: var(--radius-md);
  background:
    linear-gradient(180deg, color-mix(in oklab, var(--color-accent) 8%, var(--color-paper)), var(--color-paper)),
    linear-gradient(90deg, var(--color-line) 1px, transparent 1px);
  border: 1px solid var(--color-line-2);
}

.module-pane figure {
  margin: 0;
  max-height: 608px;
  overflow: hidden;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-line);
  background: var(--color-paper);
}

.module-pane img {
  width: 100%;
}

.workflow {
  width: min(var(--max-page), calc(100% - 32px));
}

.flow-track {
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}

.flow-track::before {
  position: absolute;
  top: 28px;
  right: 9%;
  left: 9%;
  height: 2px;
  content: "";
  background: var(--color-line);
}

.flow-track::after {
  position: absolute;
  top: 28px;
  left: 9%;
  width: 0;
  height: 2px;
  content: "";
  background: linear-gradient(90deg, var(--color-accent), var(--color-mint), var(--color-warm));
  transition: width 1.2s ease;
}

.flow-track.is-visible::after {
  width: 82%;
}

.flow-track article {
  position: relative;
  z-index: 2;
  min-width: 0;
  padding: 0 var(--space-2);
}

.flow-track span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  margin-bottom: var(--space-4);
  color: var(--color-paper);
  background: var(--color-accent);
  border: 6px solid var(--color-paper-2);
  border-radius: 50%;
  font-weight: 900;
  box-shadow: 0 14px 30px color-mix(in oklab, var(--color-accent) 28%, transparent);
}

.workflow-shots {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-4);
}

.workflow-shots figure {
  margin: 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--color-line);
  background: var(--color-paper);
  box-shadow: 0 18px 48px var(--color-shadow);
}

.analysis-section {
  width: 100%;
  max-width: none;
  padding-right: max(var(--space-4), calc((100vw - var(--max-page)) / 2));
  padding-left: max(var(--space-4), calc((100vw - var(--max-page)) / 2));
  background: var(--color-paper);
}

.section-aside {
  margin: 0;
  max-width: 420px;
  justify-self: end;
}

.analysis-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-5);
}

.analysis-card {
  position: relative;
  margin: 0;
  min-width: 0;
  overflow: hidden;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  background: var(--color-paper);
  box-shadow: 0 22px 56px var(--color-shadow);
}

.analysis-card.wide {
  grid-column: span 2;
}

.analysis-card img {
  width: 100%;
  transition: transform 700ms ease;
}

.analysis-card:hover img {
  transform: scale(1.018);
}

.analysis-card figcaption,
.gallery-strip figcaption {
  position: absolute;
  left: var(--space-4);
  bottom: var(--space-4);
  padding: var(--space-2) var(--space-3);
  color: var(--color-paper);
  background: color-mix(in oklab, var(--color-deep) 78%, transparent);
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 800;
  backdrop-filter: blur(12px);
}

.detail-gallery {
  padding-bottom: var(--space-7);
}

.gallery-strip {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(320px, 48%);
  gap: var(--space-4);
  overflow-x: auto;
  overscroll-behavior-inline: contain;
  scroll-snap-type: x mandatory;
  padding-bottom: var(--space-3);
}

.gallery-strip figure {
  position: relative;
  min-width: 0;
  margin: 0;
  overflow: hidden;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-line);
  background: var(--color-paper);
  box-shadow: 0 16px 42px var(--color-shadow);
  scroll-snap-align: start;
}

.gallery-strip img {
  width: 100%;
}

.zoomable-image {
  cursor: zoom-in;
}

.zoomable-image:focus-visible {
  outline: 3px solid var(--color-accent-2);
  outline-offset: 4px;
}

body.is-lightbox-open {
  overflow: hidden;
}

.image-lightbox {
  position: fixed;
  inset: 0;
  z-index: 120;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
  gap: var(--space-4);
  padding: clamp(var(--space-4), 4vw, var(--space-7));
  background: color-mix(in oklab, var(--color-deep) 86%, transparent);
  backdrop-filter: blur(18px);
}

.image-lightbox[hidden] {
  display: none;
}

.image-lightbox-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  color: var(--color-paper);
}

.image-lightbox-bar p {
  margin: 0;
  color: color-mix(in oklab, var(--color-paper) 86%, transparent);
  font-weight: 800;
}

.image-lightbox-close {
  flex: 0 0 auto;
  width: 44px;
  height: 44px;
  color: var(--color-paper);
  background: color-mix(in oklab, var(--color-paper) 12%, transparent);
  border: 1px solid color-mix(in oklab, var(--color-paper) 26%, transparent);
  border-radius: 50%;
  cursor: pointer;
  font-size: 28px;
  line-height: 1;
  transition: background 180ms ease, transform 180ms ease;
}

.image-lightbox-close:hover,
.image-lightbox-close:focus-visible {
  background: color-mix(in oklab, var(--color-paper) 20%, transparent);
  transform: scale(1.04);
}

.image-lightbox-body {
  min-height: 0;
  overflow: auto;
  display: grid;
  justify-items: center;
  align-items: start;
  overscroll-behavior: contain;
}

.image-lightbox-img {
  width: min(100%, 1480px);
  max-width: none;
  height: auto;
  background: var(--color-paper);
  border-radius: var(--radius-sm);
  box-shadow: 0 28px 90px color-mix(in oklab, #000 48%, transparent);
}

.page-footer {
  display: flex;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-5) clamp(var(--space-4), 5vw, var(--space-8));
  color: color-mix(in oklab, var(--color-paper) 72%, transparent);
  background: var(--color-deep);
  font-size: 14px;
}

.page-footer p {
  margin: 0;
}

.page-footer a {
  color: var(--color-paper);
  font-weight: 800;
  white-space: nowrap;
}

html.is-embedded {
  --header-height: 0px;
}

html.is-embedded .scroll-meter,
html.is-embedded .site-header {
  display: none;
}

html.is-embedded .hero {
  min-height: auto;
  padding-top: clamp(var(--space-6), 6vw, var(--space-8));
  padding-bottom: clamp(var(--space-6), 6vw, var(--space-8));
}

html.is-embedded .hero-grid {
  inset: 0;
}

html.is-embedded .case-intro,
html.is-embedded .design-system,
html.is-embedded .spotlight,
html.is-embedded .module-section,
html.is-embedded .workflow,
html.is-embedded .analysis-section {
  scroll-margin-top: var(--space-6);
}

html.is-embedded .image-lightbox {
  position: absolute;
}

html.is-embedded .hero {
  align-items: start;
}

html.is-embedded .reveal {
  opacity: 1;
  transform: none;
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 700ms ease, transform 700ms ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@keyframes gridDrift {
  from { background-position: 0 0, 0 0; }
  to { background-position: 54px 54px, 54px 54px; }
}

@keyframes sheen {
  0%, 42% { transform: translateX(-120%); }
  68%, 100% { transform: translateX(120%); }
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

@keyframes growBar {
  from { transform: scaleY(0.2); transform-origin: bottom; }
  to { transform: scaleY(1); transform-origin: bottom; }
}

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

@media (max-width: 980px) {
  .hero,
  .dark-panel,
  .system-layout,
  .module-pane {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
    background:
      linear-gradient(160deg, var(--color-deep) 0 54%, var(--color-accent) 54% 64%, var(--color-paper-2) 64% 100%);
  }

  .hero-copy {
    max-width: 720px;
  }

  .floating-card {
    position: relative;
    top: auto;
    right: auto;
    bottom: auto;
    left: auto;
    display: inline-block;
    margin-top: var(--space-4);
    margin-right: var(--space-3);
  }

  .system-notes {
    position: static;
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .spotlight-stack {
    min-height: 420px;
  }

  .module-view {
    min-height: 860px;
  }

  .module-pane {
    align-items: start;
  }
}

@media (max-width: 768px) {
  :root {
    --header-height: 60px;
  }

  .site-header {
    padding: 0 var(--space-4);
  }

  .nav-links {
    gap: var(--space-3);
    font-size: 13px;
  }

  .brand span:last-child {
    max-width: 120px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  h1 {
    font-size: 42px;
  }

  h2 {
    font-size: 29px;
  }

  .intro-layout,
  .section-head.split,
  .signal-row,
  .workflow-shots,
  .flow-track,
  .system-notes,
  .analysis-grid {
    grid-template-columns: 1fr;
  }

  .flow-track {
    gap: var(--space-5);
  }

  .flow-track::before,
  .flow-track::after {
    top: 0;
    bottom: 0;
    left: 28px;
    width: 2px;
    height: auto;
  }

  .flow-track.is-visible::after {
    width: 2px;
    height: 88%;
  }

  .flow-track article {
    padding-left: 76px;
    min-height: 72px;
  }

  .flow-track span {
    position: absolute;
    left: 0;
    top: 0;
  }

  .module-tabs {
    justify-content: flex-start;
  }

  .module-view {
    min-height: 0;
    padding: var(--space-4);
  }

  .module-pane {
    position: static;
    display: none;
    inset: auto;
  }

  .module-pane.is-active {
    display: grid;
  }

  .analysis-card.wide {
    grid-column: span 1;
  }

  .gallery-strip {
    grid-auto-columns: minmax(280px, 88%);
  }
}

@media (max-width: 520px) {
  .nav-links a:nth-child(3),
  .nav-links a:nth-child(4) {
    display: none;
  }

  h1 {
    font-size: 34px;
  }

  h2 {
    font-size: 25px;
  }

  .lead {
    font-size: 15px;
  }

  .hero {
    padding-right: var(--space-4);
    padding-left: var(--space-4);
  }

  .case-intro,
  .workflow,
  .detail-gallery {
    width: min(100% - 24px, var(--max-page));
  }

  .primary-action,
  .text-action,
  .tab-button {
    min-height: 42px;
  }

  .hero-actions {
    align-items: stretch;
  }

  .primary-action,
  .text-action {
    flex: 1 1 auto;
  }

  .dark-panel {
    min-height: auto;
    padding: var(--space-5) var(--space-4);
  }

  .spotlight-stack {
    min-height: 280px;
  }

  .main-screen {
    width: 92%;
  }

  .side-screen {
    width: 72%;
  }

  .module-view {
    min-height: 0;
  }

  .module-copy {
    min-height: 220px;
    padding: var(--space-4);
  }

  .page-footer {
    flex-direction: column;
  }
}