:root {
  color-scheme: light;
  --canvas: #f6f7f6;
  --surface: #ffffff;
  --surface-subtle: #eff1f0;
  --text: #202624;
  --text-secondary: #5c6661;
  --separator: #d8deda;
  --control: #78867e;
  --accent: #4655b8;
  --accent-hover: #35428e;
  --accent-subtle: #eef0ff;
  --success: #246347;
  --success-background: #e9f4ed;
  --attention: #86570e;
  --attention-background: #fff3d8;
  --danger: #ac3838;
  --danger-background: #fdeded;
  --container: 1184px;
  --gutter: 32px;
  --radius-control: 6px;
  --radius-panel: 10px;
  --header-height: 72px;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 24px);
}

body {
  margin: 0;
  min-width: 320px;
  overflow-x: clip;
  background: var(--canvas);
  color: var(--text);
  font-size: 16px;
  line-height: 1.625;
  -webkit-font-smoothing: antialiased;
}

body.menu-open {
  overflow: hidden;
}

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

button,
a {
  -webkit-tap-highlight-color: transparent;
}

button {
  font: inherit;
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

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

p,
h1,
h2,
h3,
figure,
dl,
dd {
  margin: 0;
}

ul,
ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

.container {
  width: min(100% - (var(--gutter) * 2), var(--container));
  margin-inline: auto;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 12px;
  left: 12px;
  padding: 10px 14px;
  border-radius: var(--radius-control);
  background: var(--text);
  color: var(--surface);
  font-size: 14px;
  font-weight: 600;
  transform: translateY(-180%);
}

.skip-link:focus {
  transform: translateY(0);
}

.eyebrow {
  color: var(--accent);
  font-size: 12px;
  font-weight: 600;
  line-height: 16px;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.wordmark {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  font-size: 16px;
  font-weight: 650;
  line-height: 20px;
  letter-spacing: -0.01em;
  white-space: nowrap;
}

.site-header {
  position: sticky;
  z-index: 10;
  top: 0;
  height: var(--header-height);
  border-bottom: 1px solid color-mix(in srgb, var(--separator) 78%, transparent);
  background: color-mix(in srgb, var(--surface) 94%, transparent);
  backdrop-filter: blur(12px);
  transition: background-color 120ms ease, box-shadow 120ms ease;
}

.site-header.is-scrolled {
  background: var(--surface);
  box-shadow: 0 1px 0 rgba(32, 38, 36, 0.05);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: 24px;
}

.desktop-nav {
  display: flex;
  align-items: center;
  gap: 24px;
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: 550;
  line-height: 20px;
}

.desktop-nav > a:not(.button) {
  padding-block: 9px;
  transition: color 120ms ease;
}

.desktop-nav > a:not(.button):hover {
  color: var(--text);
}

.nav-divider {
  width: 1px;
  height: 20px;
  background: var(--separator);
}

.mobile-actions {
  display: none;
  align-items: center;
  gap: 8px;
}

.button {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 18px;
  border: 1px solid transparent;
  border-radius: var(--radius-control);
  font-size: 14px;
  font-weight: 600;
  line-height: 20px;
  white-space: nowrap;
  transition: background-color 120ms ease, border-color 120ms ease, color 120ms ease;
}

.button svg {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.5;
}

.button--small {
  min-height: 38px;
  padding: 8px 14px;
}

.button--compact {
  min-height: 36px;
  padding: 7px 11px;
  font-size: 13px;
}

.button--primary {
  background: var(--text);
  color: var(--surface);
}

.button--primary:hover:not(.is-disabled) {
  background: #343d38;
}

.button--secondary {
  border-color: var(--control);
  background: transparent;
  color: var(--text);
}

.button--secondary:hover {
  border-color: var(--text);
  background: var(--surface);
}

.button--light {
  background: var(--surface);
  color: var(--text);
}

.button--light:hover:not(.is-disabled) {
  background: var(--accent-subtle);
}

.button.is-disabled,
.button[aria-disabled="true"] {
  cursor: not-allowed;
  opacity: 0.58;
}

.menu-button {
  display: inline-grid;
  width: 40px;
  height: 40px;
  padding: 0;
  place-items: center;
  border: 1px solid var(--separator);
  border-radius: var(--radius-control);
  background: var(--surface);
  color: var(--text);
}

.menu-button svg {
  width: 20px;
  height: 20px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-width: 1.6;
}

.mobile-menu {
  width: 100%;
  max-width: none;
  height: 100%;
  max-height: none;
  margin: 0;
  padding: 0;
  border: 0;
  background: transparent;
}

.mobile-menu::backdrop {
  background: rgba(32, 38, 36, 0.3);
}

.mobile-menu__sheet {
  width: min(100%, 430px);
  height: 100%;
  margin-left: auto;
  padding: 12px 20px 24px;
  background: var(--surface);
  box-shadow: -16px 0 48px rgba(32, 38, 36, 0.14);
}

.mobile-menu__header {
  display: flex;
  height: 52px;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--separator);
}

.mobile-menu__nav {
  display: grid;
  gap: 2px;
  padding-top: 24px;
}

.mobile-menu__nav > a:not(.button) {
  padding: 14px 4px;
  border-bottom: 1px solid var(--separator);
  font-size: 18px;
  font-weight: 550;
  line-height: 26px;
}

.mobile-menu__nav .button {
  margin-top: 20px;
}

.hero {
  overflow: hidden;
  background: var(--canvas);
}

.hero__grid {
  display: grid;
  min-height: 680px;
  grid-template-columns: minmax(0, 0.44fr) minmax(0, 0.56fr);
  align-items: center;
  gap: 58px;
  padding-block: 78px 88px;
}

.hero__copy {
  position: relative;
  z-index: 1;
}

.hero h1 {
  max-width: 660px;
  margin-top: 18px;
  font-size: clamp(44px, 4vw, 56px);
  font-weight: 600;
  line-height: 1.14;
  letter-spacing: -0.035em;
  text-wrap: balance;
}

.hero__body {
  max-width: 620px;
  margin-top: 24px;
  color: var(--text-secondary);
  font-size: 18px;
  line-height: 29px;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

.qualifier {
  display: flex;
  align-items: flex-start;
  gap: 9px;
  margin-top: 19px;
  color: var(--text-secondary);
  font-size: 13px;
  line-height: 20px;
}

.qualifier > span {
  width: 7px;
  height: 7px;
  flex: 0 0 auto;
  margin-top: 6px;
  border: 1.5px solid var(--accent);
  border-radius: 50%;
  background: var(--accent-subtle);
}

.product-figure {
  min-width: 0;
}

.figure-label {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 10px 2px;
  color: var(--text-secondary);
  font-size: 12px;
  font-weight: 600;
  line-height: 16px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.figure-label span {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-subtle);
}

.product-figure figcaption {
  margin-top: 11px;
  color: var(--text-secondary);
  font-size: 12px;
  line-height: 18px;
}

.app-shell {
  display: grid;
  aspect-ratio: 1.22 / 1;
  min-height: 430px;
  grid-template-columns: 52px minmax(0, 1fr);
  overflow: hidden;
  border: 1px solid var(--separator);
  border-radius: var(--radius-panel);
  background: var(--surface);
  box-shadow: 0 22px 54px rgba(32, 38, 36, 0.13), 0 4px 12px rgba(32, 38, 36, 0.05);
}

.app-rail {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  padding: 14px 8px;
  border-right: 1px solid var(--separator);
  background: var(--surface-subtle);
}

.rail-brand {
  display: grid;
  width: 28px;
  height: 28px;
  margin-bottom: 8px;
  place-items: center;
  border-radius: 6px;
  background: var(--text);
  color: var(--surface);
  font-size: 12px;
  font-weight: 700;
}

.rail-item {
  display: grid;
  width: 32px;
  height: 32px;
  place-items: center;
  border-radius: 6px;
}

.rail-item span {
  width: 13px;
  height: 13px;
  border: 1.5px solid var(--text-secondary);
  border-radius: 3px;
}

.rail-item--active {
  background: var(--accent-subtle);
}

.rail-item--active span {
  border-color: var(--accent);
  box-shadow: inset 4px 0 0 var(--accent);
}

.rail-spacer {
  flex: 1;
}

.app-workspace {
  display: grid;
  min-width: 0;
  grid-template-rows: 66px minmax(0, 1fr);
}

.app-topbar {
  display: flex;
  min-width: 0;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 14px;
  border-bottom: 1px solid var(--separator);
}

.app-breadcrumb {
  overflow: hidden;
  color: var(--text-secondary);
  font-size: 9px;
  line-height: 13px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.app-title-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 4px;
  font-size: 12px;
  line-height: 16px;
}

.badge {
  display: inline-flex;
  min-height: 20px;
  align-items: center;
  width: fit-content;
  padding: 2px 7px;
  border-radius: 999px;
  font-size: 9px;
  font-weight: 600;
  line-height: 13px;
  white-space: nowrap;
}

.badge--neutral {
  background: var(--surface-subtle);
  color: var(--text-secondary);
}

.badge--attention {
  background: var(--attention-background);
  color: var(--attention);
}

.badge--success {
  background: var(--success-background);
  color: var(--success);
}

.badge--danger {
  background: var(--danger-background);
  color: var(--danger);
}

.mock-control,
.mock-button {
  display: inline-flex;
  min-height: 28px;
  align-items: center;
  justify-content: center;
  padding: 5px 9px;
  border: 1px solid var(--control);
  border-radius: 5px;
  background: var(--surface);
  color: var(--text);
  font-size: 9px;
  font-weight: 600;
  line-height: 13px;
  white-space: nowrap;
}

.mock-button {
  width: 100%;
  border-color: var(--text);
  background: var(--text);
  color: var(--surface);
}

.app-content {
  display: grid;
  min-width: 0;
  grid-template-columns: 116px minmax(0, 1fr) 170px;
}

.model-tree {
  display: flex;
  min-width: 0;
  flex-direction: column;
  gap: 2px;
  padding: 13px 8px;
  border-right: 1px solid var(--separator);
  background: var(--surface);
}

.tree-label,
.mini-label {
  color: var(--text-secondary);
  font-size: 8px;
  font-weight: 650;
  line-height: 12px;
  letter-spacing: 0.06em;
}

.tree-label {
  padding: 0 5px 7px;
}

.tree-row {
  display: flex;
  min-width: 0;
  align-items: center;
  gap: 5px;
  padding: 5px 5px 5px 14px;
  border-radius: 4px;
  color: var(--text-secondary);
  font-size: 8px;
  line-height: 12px;
  white-space: nowrap;
}

.tree-row i {
  width: 6px;
  height: 6px;
  flex: 0 0 auto;
  border: 1px solid currentColor;
}

.tree-row--root {
  padding-left: 5px;
  color: var(--text);
  font-weight: 600;
}

.tree-row--selected {
  background: var(--accent-subtle);
  color: var(--accent);
  font-weight: 600;
}

.model-viewer {
  position: relative;
  min-width: 0;
  overflow: hidden;
  background: #eef1ef;
}

.viewer-toolbar {
  position: absolute;
  z-index: 2;
  top: 10px;
  right: 10px;
  left: 10px;
  display: flex;
  justify-content: space-between;
  color: var(--text-secondary);
  font-size: 8px;
  font-weight: 600;
  line-height: 12px;
}

.machine-visual {
  width: 100%;
  height: 100%;
}

.machine-frame path,
.machine-frame circle {
  fill: #f9faf9;
  stroke: #66736c;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.5;
}

.machine-frame .machine-window {
  fill: #d9dfdc;
}

.machine-frame .machine-belt {
  fill: #cdd5d1;
  stroke: #8c9992;
}

.machine-frame .machine-conveyor {
  fill: #e7eae8;
}

.machine-frame .machine-control {
  fill: var(--accent-subtle);
  stroke: var(--accent);
}

.machine-frame .indicator {
  fill: var(--accent);
  stroke: none;
}

.machine-frame .machine-detail {
  fill: none;
  stroke: #aab4ae;
}

.machine-frame .machine-outline {
  fill: none;
  stroke: #46514b;
  stroke-width: 2;
}

.floor-line {
  fill: none;
  stroke: #c9d0cc;
  stroke-width: 1;
}

.finding-marker {
  position: absolute;
  display: grid;
  width: 22px;
  height: 22px;
  place-items: center;
  border: 2px solid var(--surface);
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 2px 7px rgba(32, 38, 36, 0.24);
  color: var(--surface);
  font-size: 9px;
  font-weight: 700;
  line-height: 1;
}

.finding-marker--one {
  top: 42%;
  left: 30%;
}

.finding-marker--two {
  top: 31%;
  right: 22%;
}

.viewer-axis {
  position: absolute;
  right: 9px;
  bottom: 8px;
  width: 28px;
  height: 28px;
  color: var(--text-secondary);
  font-size: 7px;
}

.viewer-axis span {
  position: absolute;
  top: -2px;
  left: 11px;
}

.viewer-axis i,
.viewer-axis b {
  position: absolute;
  bottom: 4px;
  left: 13px;
  width: 1px;
  height: 15px;
  background: var(--accent);
  transform-origin: bottom;
}

.viewer-axis b {
  background: var(--text-secondary);
  transform: rotate(90deg);
}

.finding-panel {
  display: flex;
  min-width: 0;
  flex-direction: column;
  padding: 10px 11px;
  border-left: 1px solid var(--separator);
  background: var(--surface);
}

.panel-tabs {
  display: flex;
  gap: 12px;
  padding-bottom: 7px;
  border-bottom: 1px solid var(--separator);
  color: var(--text-secondary);
  font-size: 8px;
  line-height: 12px;
}

.panel-tabs strong {
  position: relative;
  color: var(--accent);
}

.panel-tabs strong::after {
  position: absolute;
  right: 0;
  bottom: -8px;
  left: 0;
  height: 2px;
  background: var(--accent);
  content: "";
}

.finding-heading {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  padding-top: 12px;
}

.finding-number {
  display: grid;
  width: 25px;
  height: 25px;
  flex: 0 0 auto;
  place-items: center;
  border-radius: 50%;
  background: var(--accent-subtle);
  color: var(--accent);
  font-size: 9px;
  font-weight: 700;
}

.finding-heading small {
  display: block;
  color: var(--text-secondary);
  font-size: 7px;
  font-weight: 650;
  line-height: 10px;
}

.finding-heading strong {
  display: block;
  margin-top: 3px;
  font-size: 10px;
  line-height: 14px;
}

.finding-copy {
  margin-top: 11px;
  color: var(--text-secondary);
  font-size: 8px;
  line-height: 13px;
}

.finding-meta {
  display: grid;
  gap: 6px;
  margin-top: 12px;
}

.finding-meta div,
.inline-meta {
  display: flex;
  justify-content: space-between;
  gap: 7px;
  font-size: 8px;
  line-height: 12px;
}

.finding-meta dt,
.inline-meta > span {
  color: var(--text-secondary);
}

.finding-meta dd,
.inline-meta strong {
  font-weight: 600;
}

.status-dot {
  display: inline-block;
  width: 6px;
  height: 6px;
  margin-right: 4px;
  border-radius: 50%;
  background: var(--attention);
}

.discussion {
  display: flex;
  gap: 6px;
  margin-block: 13px 10px;
  padding: 8px;
  border-radius: 6px;
  background: var(--surface-subtle);
}

.avatar {
  display: grid;
  width: 21px;
  height: 21px;
  flex: 0 0 auto;
  place-items: center;
  border-radius: 50%;
  background: var(--text);
  color: var(--surface);
  font-size: 6px;
  font-weight: 700;
}

.discussion p {
  color: var(--text-secondary);
  font-size: 7px;
  line-height: 11px;
}

.discussion strong {
  color: var(--text);
  font-size: 7px;
}

.workflow-strip {
  border-block: 1px solid var(--separator);
  background: var(--surface);
}

.workflow-strip__list {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}

.workflow-strip__list li {
  position: relative;
  display: flex;
  min-height: 92px;
  align-items: center;
  gap: 12px;
  padding: 16px 20px;
  color: var(--text-secondary);
  font-size: 13px;
  line-height: 18px;
}

.workflow-strip__list li + li::before {
  position: absolute;
  top: 50%;
  left: -15px;
  width: 30px;
  height: 1px;
  background: var(--separator);
  content: "";
}

.workflow-strip__list li + li::after {
  position: absolute;
  top: calc(50% - 3px);
  left: 13px;
  width: 6px;
  height: 6px;
  border-top: 1px solid var(--control);
  border-right: 1px solid var(--control);
  content: "";
  transform: rotate(45deg);
}

.workflow-icon {
  display: grid;
  width: 34px;
  height: 34px;
  flex: 0 0 auto;
  place-items: center;
  border: 1px solid var(--separator);
  border-radius: 50%;
  background: var(--canvas);
  color: var(--accent);
  font-size: 10px;
  font-weight: 650;
}

.workflow-strip strong {
  color: var(--text);
  font-weight: 600;
}

.section {
  padding-block: 112px;
}

.section-heading {
  max-width: 720px;
}

.section-heading--wide {
  max-width: 800px;
}

.section-heading h2,
.tools-copy h2,
.design-partner-panel h2,
.faq-heading h2 {
  margin-top: 15px;
  font-size: clamp(32px, 3.1vw, 40px);
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.03em;
  text-wrap: balance;
}

.section-heading > p:last-child,
.tools-copy > p:not(.eyebrow),
.design-partner-panel > div > p:not(.eyebrow):not(.partner-note),
.faq-heading > p:last-child {
  max-width: 710px;
  margin-top: 20px;
  color: var(--text-secondary);
  font-size: 16px;
  line-height: 26px;
}

.problem-section {
  background: var(--canvas);
}

.card-grid {
  display: grid;
  gap: 16px;
  margin-top: 48px;
}

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

.problem-card {
  min-height: 248px;
  padding: 26px 24px;
  border: 1px solid var(--separator);
  border-radius: var(--radius-panel);
  background: var(--surface);
}

.problem-card h3 {
  margin-top: 27px;
  font-size: 18px;
  font-weight: 600;
  line-height: 25px;
  letter-spacing: -0.015em;
}

.problem-card p {
  margin-top: 11px;
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 22px;
}

.line-icon {
  position: relative;
  display: block;
  width: 38px;
  height: 38px;
  border: 1px solid var(--separator);
  border-radius: 8px;
  background: var(--surface-subtle);
}

.line-icon i {
  position: absolute;
  right: 9px;
  left: 9px;
  height: 1px;
  background: var(--control);
}

.line-icon i:nth-child(1) { top: 11px; }
.line-icon i:nth-child(2) { top: 18px; right: 14px; }
.line-icon i:nth-child(3) { top: 25px; }

.line-icon--revision i:nth-child(1) {
  top: 9px;
  right: 14px;
  bottom: 9px;
  left: 10px;
  height: auto;
  border: 1px solid var(--control);
  background: transparent;
}

.line-icon--revision i:nth-child(2) {
  top: 13px;
  right: 9px;
  bottom: 5px;
  left: 15px;
  height: auto;
  border-right: 1px solid var(--accent);
  border-bottom: 1px solid var(--accent);
  background: transparent;
}

.line-icon--revision i:nth-child(3) { display: none; }

.line-icon--branches i:nth-child(1) {
  top: 18px;
  right: 9px;
  left: 9px;
}

.line-icon--branches i:nth-child(2) {
  top: 10px;
  left: 18px;
  width: 1px;
  height: 16px;
}

.line-icon--branches i:nth-child(3) {
  top: 9px;
  right: auto;
  left: 15px;
  width: 7px;
  height: 7px;
  border: 1px solid var(--accent);
  border-radius: 50%;
  background: var(--surface);
}

.line-icon--evidence i:nth-child(1) {
  top: 9px;
  right: 9px;
  bottom: 9px;
  left: 9px;
  height: auto;
  border: 1px solid var(--control);
  border-radius: 50%;
  background: transparent;
}

.line-icon--evidence i:nth-child(2) {
  top: 18px;
  right: 13px;
  left: 13px;
  background: var(--accent);
  transform: rotate(-45deg);
}

.line-icon--evidence i:nth-child(3) { display: none; }

.workflow-section {
  border-block: 1px solid var(--separator);
  background: var(--surface);
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 32px;
  margin-top: 56px;
  counter-reset: step;
}

.steps-grid li {
  position: relative;
  padding-top: 27px;
  border-top: 1px solid var(--separator);
}

.steps-grid li:not(:last-child)::after {
  position: absolute;
  top: -4px;
  right: -21px;
  width: 7px;
  height: 7px;
  border-top: 1px solid var(--control);
  border-right: 1px solid var(--control);
  content: "";
  transform: rotate(45deg);
}

.step-number {
  color: var(--accent);
  font-size: 12px;
  font-weight: 650;
  line-height: 16px;
}

.steps-grid h3 {
  margin-top: 13px;
  font-size: 20px;
  font-weight: 600;
  line-height: 28px;
  letter-spacing: -0.02em;
}

.steps-grid p {
  margin-top: 11px;
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 23px;
}

.product-anchor {
  background: var(--canvas);
}

.feature-section--subtle {
  border-block: 1px solid var(--separator);
  background: var(--surface-subtle);
}

.feature-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.18fr);
  align-items: center;
  gap: 76px;
}

.feature-grid--reverse {
  grid-template-columns: minmax(0, 1.18fr) minmax(0, 0.82fr);
}

.feature-grid--reverse .feature-copy {
  order: 2;
}

.feature-grid--reverse .product-figure {
  order: 1;
}

.feature-copy h2 {
  margin-top: 15px;
  font-size: 28px;
  font-weight: 600;
  line-height: 36px;
  letter-spacing: -0.025em;
  text-wrap: balance;
}

.feature-copy > p:not(.eyebrow) {
  margin-top: 20px;
  color: var(--text-secondary);
  font-size: 16px;
  line-height: 26px;
}

.proof-list {
  display: grid;
  gap: 12px;
  margin-top: 29px;
}

.proof-list li {
  position: relative;
  padding-left: 24px;
  color: var(--text);
  font-size: 14px;
  line-height: 22px;
}

.proof-list li::before {
  position: absolute;
  top: 8px;
  left: 1px;
  width: 7px;
  height: 4px;
  border-bottom: 1.5px solid var(--accent);
  border-left: 1.5px solid var(--accent);
  content: "";
  transform: rotate(-45deg);
}

.capability-preview > div {
  aspect-ratio: 1.32 / 1;
  min-height: 410px;
  overflow: hidden;
  border: 1px solid var(--separator);
  border-radius: var(--radius-panel);
  background: var(--surface);
  box-shadow: 0 12px 36px rgba(32, 38, 36, 0.07);
}

.preview-topbar {
  display: flex;
  min-height: 56px;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 16px;
  border-bottom: 1px solid var(--separator);
  background: var(--surface);
  font-size: 11px;
  line-height: 15px;
}

.preview-topbar > div {
  display: grid;
  gap: 3px;
}

.preview-topbar strong {
  font-size: 11px;
}

.source-review-preview {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  grid-template-rows: auto minmax(0, 1fr);
}

.source-review-preview .preview-topbar {
  grid-column: 1 / -1;
}

.source-pane,
.requirement-pane {
  min-width: 0;
  padding: 20px;
}

.source-pane {
  border-right: 1px solid var(--separator);
  background: #fbfcfb;
}

.source-pane > strong {
  display: block;
  margin-top: 22px;
  font-size: 13px;
  line-height: 18px;
}

.source-pane > p {
  margin-top: 14px;
  color: var(--text-secondary);
  font-size: 10px;
  line-height: 17px;
}

.source-highlight {
  display: block;
  margin-top: 17px;
  padding: 9px 10px;
  border-left: 2px solid var(--accent);
  background: var(--accent-subtle);
  color: var(--text);
  font-size: 9px;
  line-height: 15px;
}

.document-lines {
  display: grid;
  gap: 7px;
  margin-top: 18px;
}

.document-lines i {
  height: 3px;
  border-radius: 2px;
  background: var(--separator);
}

.document-lines i:nth-child(2) { width: 91%; }
.document-lines i:nth-child(3) { width: 78%; }
.document-lines i:nth-child(4) { width: 86%; }

.requirement-pane {
  display: flex;
  flex-direction: column;
  gap: 9px;
  background: var(--canvas);
}

.requirement-pane > .mini-label {
  margin-bottom: 5px;
}

.requirement-card {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 6px 8px;
  padding: 11px 12px;
  border: 1px solid var(--separator);
  border-radius: 7px;
  background: var(--surface);
}

.requirement-card--selected {
  border-color: color-mix(in srgb, var(--accent) 50%, var(--separator));
  box-shadow: inset 3px 0 0 var(--accent);
}

.record-id {
  color: var(--accent);
  font-size: 8px;
  font-weight: 700;
  line-height: 12px;
}

.requirement-card strong {
  grid-column: 1 / -1;
  font-size: 10px;
  line-height: 14px;
}

.requirement-card small {
  grid-column: 1 / -1;
  color: var(--text-secondary);
  font-size: 8px;
  line-height: 12px;
}

.review-preview {
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
}

.review-preview__body {
  display: grid;
  min-height: 0;
  grid-template-columns: minmax(0, 1fr) 190px;
}

.review-canvas {
  position: relative;
  overflow: hidden;
  background: #eef1ef;
}

.review-canvas > .mini-label {
  position: absolute;
  z-index: 2;
  top: 14px;
  left: 14px;
  padding: 4px 7px;
  border-radius: 4px;
  background: var(--surface);
}

.review-canvas svg {
  width: 100%;
  height: 100%;
}

.machine-frame .selected-component {
  fill: rgba(70, 85, 184, 0.06);
  stroke: var(--accent);
  stroke-width: 2.5;
}

.finding-marker--review {
  top: 37%;
  right: 28%;
  width: 25px;
  height: 25px;
}

.review-inspector {
  display: flex;
  min-width: 0;
  flex-direction: column;
  padding: 13px;
  border-left: 1px solid var(--separator);
}

.review-inspector > .mini-label {
  margin-top: 17px;
}

.review-inspector h3 {
  margin-top: 6px;
  font-size: 13px;
  line-height: 18px;
}

.review-inspector > p {
  margin: 8px 0 15px;
  color: var(--text-secondary);
  font-size: 9px;
  line-height: 14px;
}

.inline-meta {
  padding-block: 5px;
  border-top: 1px solid var(--separator);
}

.discussion--compact {
  margin-top: auto;
  margin-bottom: 9px;
}

.change-preview,
.readiness-preview {
  display: grid;
  grid-template-rows: auto auto minmax(0, 1fr) auto;
}

.change-summary,
.readiness-summary {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-bottom: 1px solid var(--separator);
  background: var(--canvas);
}

.change-summary > div,
.readiness-summary > div {
  display: grid;
  gap: 2px;
  padding: 12px 15px;
}

.change-summary > div + div,
.readiness-summary > div + div {
  border-left: 1px solid var(--separator);
}

.change-summary span,
.readiness-summary span {
  color: var(--text-secondary);
  font-size: 8px;
  line-height: 12px;
}

.change-summary strong,
.readiness-summary strong {
  font-size: 10px;
  line-height: 14px;
}

.impact-matrix {
  display: grid;
  align-content: start;
  padding: 12px 16px;
}

.impact-matrix > div {
  display: grid;
  grid-template-columns: 0.8fr 1fr 1.25fr;
  align-items: center;
  gap: 10px;
  min-height: 47px;
  padding: 7px 6px;
  border-bottom: 1px solid var(--separator);
  color: var(--text-secondary);
  font-size: 9px;
  line-height: 13px;
}

.impact-matrix > .matrix-head {
  min-height: 27px;
  padding-block: 2px 7px;
  color: var(--text-secondary);
  font-size: 8px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.impact-matrix strong {
  color: var(--text);
  font-size: 9px;
}

.change-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 9px 16px;
  border-top: 1px solid var(--separator);
  color: var(--text-secondary);
  font-size: 8px;
  line-height: 12px;
}

.readiness-preview {
  grid-template-rows: auto auto minmax(0, 1fr);
}

.readiness-summary > div {
  gap: 4px;
  padding-block: 14px;
}

.readiness-summary strong {
  font-size: 14px;
  line-height: 18px;
}

.check-list {
  display: grid;
  align-content: center;
  padding: 12px 16px;
}

.check-list > div {
  display: grid;
  grid-template-columns: 27px minmax(0, 1fr) auto;
  align-items: center;
  gap: 10px;
  min-height: 54px;
  padding-block: 8px;
  border-bottom: 1px solid var(--separator);
}

.check-list > div:last-child {
  border-bottom: 0;
}

.check-symbol {
  display: grid;
  width: 24px;
  height: 24px;
  place-items: center;
  border-radius: 50%;
  font-size: 10px;
  font-weight: 700;
}

.check-symbol--pass {
  background: var(--success-background);
  color: var(--success);
}

.check-symbol--review {
  background: var(--attention-background);
  color: var(--attention);
}

.check-symbol--open {
  background: var(--danger-background);
  color: var(--danger);
}

.check-list p {
  display: grid;
  gap: 2px;
}

.check-list strong {
  font-size: 10px;
  line-height: 14px;
}

.check-list small {
  color: var(--text-secondary);
  font-size: 8px;
  line-height: 12px;
}

.tools-section {
  border-bottom: 1px solid var(--separator);
  background: var(--surface);
}

.tools-panel {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(320px, 0.9fr);
  gap: 72px;
  padding: 48px;
  border: 1px solid var(--separator);
  border-radius: var(--radius-panel);
  background: var(--canvas);
}

.tools-support {
  padding-top: 18px;
  border-top: 1px solid var(--separator);
  font-size: 14px !important;
  line-height: 23px !important;
}

.artifact-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  align-content: center;
  gap: 10px;
}

.artifact-list li {
  display: flex;
  min-width: 0;
  align-items: center;
  gap: 10px;
  padding: 14px;
  border: 1px solid var(--separator);
  border-radius: 8px;
  background: var(--surface);
}

.artifact-list div {
  display: grid;
  min-width: 0;
  gap: 1px;
}

.artifact-list strong {
  font-size: 11px;
  line-height: 16px;
}

.artifact-list small {
  color: var(--text-secondary);
  font-size: 9px;
  line-height: 13px;
}

.artifact-icon {
  position: relative;
  display: block;
  width: 28px;
  height: 32px;
  flex: 0 0 auto;
  border: 1px solid var(--control);
  border-radius: 4px;
  background: var(--surface);
}

.artifact-icon::before,
.artifact-icon::after {
  position: absolute;
  right: 6px;
  left: 6px;
  height: 1px;
  background: var(--control);
  content: "";
}

.artifact-icon::before { top: 11px; }
.artifact-icon::after { top: 17px; }

.artifact-icon--model {
  border-radius: 50% 50% 5px 5px;
}

.artifact-icon--change::before {
  top: 9px;
  height: 12px;
  border: 1px solid var(--accent);
  border-right: 0;
  background: transparent;
}

.artifact-icon--change::after { display: none; }

.artifact-icon--evidence::before {
  top: 8px;
  left: 8px;
  width: 9px;
  height: 5px;
  border-bottom: 1.5px solid var(--success);
  border-left: 1.5px solid var(--success);
  background: transparent;
  transform: rotate(-45deg);
}

.artifact-icon--evidence::after { display: none; }

.design-partner-section {
  background: var(--surface);
}

.design-partner-panel {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(320px, 0.8fr);
  gap: 72px;
  padding: 64px;
  border-radius: var(--radius-panel);
  background: var(--text);
  color: var(--surface);
}

.design-partner-panel .eyebrow {
  color: #aeb7ff;
}

.design-partner-panel > div > p:not(.eyebrow):not(.partner-note) {
  color: #cbd0cd;
}

.design-partner-panel .button {
  margin-top: 30px;
}

.partner-note {
  margin-top: 15px;
  color: #cbd0cd;
  font-size: 13px;
  line-height: 20px;
}

.partner-points {
  display: grid;
  align-content: center;
}

.partner-points li {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  padding: 20px 0;
  border-bottom: 1px solid #4a514e;
  color: #eef0ef;
  font-size: 15px;
  line-height: 23px;
}

.partner-points li:first-child {
  border-top: 1px solid #4a514e;
}

.partner-points span {
  color: #aeb7ff;
  font-size: 11px;
  font-weight: 650;
  line-height: 22px;
}

.faq-section {
  border-top: 1px solid var(--separator);
  background: var(--canvas);
}

.faq-grid {
  display: grid;
  grid-template-columns: minmax(280px, 0.7fr) minmax(0, 1.3fr);
  gap: 88px;
  align-items: start;
}

.faq-heading {
  position: sticky;
  top: calc(var(--header-height) + 36px);
}

.faq-list {
  border-top: 1px solid var(--separator);
}

.faq-list article {
  padding: 28px 0 30px;
  border-bottom: 1px solid var(--separator);
}

.faq-list h3 {
  font-size: 18px;
  font-weight: 600;
  line-height: 26px;
  letter-spacing: -0.015em;
}

.faq-list p {
  max-width: 680px;
  margin-top: 10px;
  color: var(--text-secondary);
  font-size: 16px;
  line-height: 26px;
}

.site-footer {
  padding-block: 56px 40px;
  border-top: 1px solid var(--separator);
  background: var(--surface);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 44px;
}

.footer-brand p {
  max-width: 440px;
  margin-top: 9px;
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 22px;
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 12px 24px;
  font-size: 14px;
  font-weight: 550;
  line-height: 22px;
}

.footer-nav a:hover {
  color: var(--accent);
}

.copyright {
  grid-column: 1 / -1;
  padding-top: 24px;
  border-top: 1px solid var(--separator);
  color: var(--text-secondary);
  font-size: 12px;
  line-height: 18px;
}

@media (max-width: 1199px) {
  :root {
    --gutter: 24px;
  }

  .section {
    padding-block: 80px;
  }

  .hero__grid {
    gap: 38px;
  }

  .problem-grid,
  .steps-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .problem-card {
    min-height: 220px;
  }

  .steps-grid {
    row-gap: 44px;
  }

  .steps-grid li:nth-child(2)::after {
    display: none;
  }

  .feature-grid,
  .feature-grid--reverse {
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
    gap: 44px;
  }

  .tools-panel,
  .design-partner-panel {
    gap: 44px;
    padding: 44px;
  }

  .faq-grid {
    gap: 56px;
  }
}

@media (max-width: 1040px) {
  .hero__grid {
    min-height: auto;
    grid-template-columns: 1fr;
    gap: 56px;
    padding-block: 80px;
  }

  .hero__copy {
    max-width: 760px;
  }

  .hero h1 {
    max-width: 720px;
  }

  .hero-preview {
    width: min(100%, 850px);
  }

  .app-shell {
    aspect-ratio: 1.45 / 1;
  }

  .feature-grid,
  .feature-grid--reverse {
    grid-template-columns: 1fr;
    align-items: start;
    gap: 44px;
  }

  .feature-grid--reverse .feature-copy,
  .feature-grid--reverse .product-figure {
    order: initial;
  }

  .feature-copy {
    max-width: 680px;
  }

  .capability-preview {
    width: min(100%, 760px);
  }

  .capability-preview > div {
    min-height: 380px;
  }

  .tools-panel {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 900px) {
  :root {
    --header-height: 64px;
  }

  .desktop-nav {
    display: none;
  }

  .mobile-actions {
    display: flex;
  }

  .feature-grid,
  .feature-grid--reverse,
  .faq-grid {
    grid-template-columns: 1fr;
    gap: 44px;
  }

  .feature-grid--reverse .feature-copy,
  .feature-grid--reverse .product-figure {
    order: initial;
  }

  .feature-copy {
    max-width: 680px;
  }

  .capability-preview {
    width: min(100%, 760px);
  }

  .faq-heading {
    position: static;
    max-width: 680px;
  }

  .design-partner-panel {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 767px) {
  :root {
    --gutter: 16px;
  }

  .section {
    padding-block: 64px;
  }

  .hero__grid {
    gap: 44px;
    padding-block: 62px 64px;
  }

  .hero h1 {
    margin-top: 14px;
    font-size: 40px;
    line-height: 46px;
    letter-spacing: -0.035em;
  }

  .hero__body {
    margin-top: 20px;
    font-size: 17px;
    line-height: 27px;
  }

  .hero__actions {
    margin-top: 28px;
  }

  .app-shell {
    aspect-ratio: 1.1 / 1;
    min-height: 460px;
    grid-template-columns: 44px minmax(0, 1fr);
  }

  .app-content {
    grid-template-columns: 92px minmax(0, 1fr) 158px;
  }

  .section-heading h2,
  .tools-copy h2,
  .design-partner-panel h2,
  .faq-heading h2 {
    margin-top: 12px;
    font-size: 30px;
    line-height: 38px;
  }

  .workflow-strip {
    padding-block: 12px;
  }

  .workflow-strip__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .workflow-strip__list li {
    min-height: 74px;
    padding: 10px;
  }

  .workflow-strip__list li + li::before,
  .workflow-strip__list li + li::after {
    display: none;
  }

  .problem-grid {
    grid-template-columns: 1fr;
    margin-top: 36px;
  }

  .problem-card {
    min-height: auto;
    padding: 22px 20px;
  }

  .problem-card h3 {
    margin-top: 20px;
  }

  .steps-grid {
    position: relative;
    grid-template-columns: 1fr;
    gap: 0;
    margin-top: 40px;
    padding-left: 24px;
  }

  .steps-grid::before {
    position: absolute;
    top: 8px;
    bottom: 8px;
    left: 4px;
    width: 1px;
    background: var(--separator);
    content: "";
  }

  .steps-grid li {
    padding: 0 0 36px 16px;
    border-top: 0;
  }

  .steps-grid li:last-child {
    padding-bottom: 0;
  }

  .steps-grid li::before {
    position: absolute;
    top: 5px;
    left: -23px;
    width: 7px;
    height: 7px;
    border: 2px solid var(--canvas);
    border-radius: 50%;
    background: var(--accent);
    box-shadow: 0 0 0 1px var(--accent);
    content: "";
  }

  .steps-grid li:not(:last-child)::after {
    display: none;
  }

  .steps-grid h3 {
    margin-top: 6px;
  }

  .feature-grid,
  .feature-grid--reverse {
    gap: 36px;
  }

  .feature-copy h2 {
    margin-top: 12px;
    font-size: 24px;
    line-height: 32px;
  }

  .capability-preview > div {
    min-height: 390px;
  }

  .tools-panel,
  .design-partner-panel {
    padding: 28px 24px;
  }

  .artifact-list {
    grid-template-columns: 1fr;
  }

  .design-partner-panel {
    gap: 36px;
  }

  .faq-list article {
    padding-block: 24px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .footer-nav {
    justify-content: flex-start;
  }

  .copyright {
    grid-column: 1;
  }
}

@media (max-width: 560px) {
  .site-header__inner {
    gap: 8px;
  }

  .wordmark {
    font-size: 15px;
  }

  .mobile-actions {
    gap: 6px;
  }

  .mobile-actions .button {
    padding-inline: 9px;
    font-size: 12px;
  }

  .app-shell {
    aspect-ratio: 0.91 / 1;
    min-height: 490px;
  }

  .app-content {
    grid-template-columns: 78px minmax(0, 1fr) 142px;
  }

  .app-topbar {
    padding-inline: 10px;
  }

  .source-review-preview {
    grid-template-columns: 0.82fr 1.18fr;
  }

  .source-pane,
  .requirement-pane {
    padding: 13px;
  }

  .review-preview__body {
    grid-template-columns: minmax(0, 1fr) 155px;
  }

  .impact-matrix {
    padding-inline: 10px;
  }

  .impact-matrix > div {
    grid-template-columns: 0.7fr 1fr;
  }

  .impact-matrix > div > :last-child {
    display: none;
  }

  .check-list {
    padding-inline: 10px;
  }

  .check-list > div {
    grid-template-columns: 27px minmax(0, 1fr);
  }

  .check-list .badge {
    display: none;
  }
}

@media (max-width: 419px) {
  .hero__actions {
    display: grid;
  }

  .hero__actions .button {
    width: 100%;
  }

  .app-shell {
    min-height: 410px;
    grid-template-columns: 36px minmax(0, 1fr);
  }

  .app-rail {
    padding-inline: 3px;
  }

  .rail-item {
    width: 29px;
  }

  .app-content {
    grid-template-columns: 66px minmax(0, 1fr);
  }

  .finding-panel {
    display: none;
  }

  .model-tree {
    padding-inline: 5px;
  }

  .tree-row {
    overflow: hidden;
    padding-left: 5px;
    text-overflow: ellipsis;
  }

  .workflow-strip__list {
    grid-template-columns: 1fr;
  }

  .workflow-strip__list li {
    min-height: 58px;
    padding-inline: 4px;
    border-bottom: 1px solid var(--separator);
  }

  .workflow-strip__list li:last-child {
    border-bottom: 0;
  }

  .capability-preview > div {
    aspect-ratio: auto;
    min-height: 360px;
  }

  .source-review-preview {
    grid-template-columns: 1fr;
  }

  .source-pane {
    display: none;
  }

  .source-review-preview .preview-topbar,
  .requirement-pane {
    grid-column: 1;
  }

  .review-preview__body {
    grid-template-columns: minmax(0, 1fr) 142px;
  }

  .review-inspector {
    padding: 10px;
  }

  .change-summary > div,
  .readiness-summary > div {
    padding-inline: 8px;
  }

  .design-partner-panel,
  .tools-panel {
    padding: 24px 20px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}