:root {
  color-scheme: light;
  --page: #f4f7fb;
  --surface: #ffffff;
  --surface-soft: #eef4f8;
  --ink: #102033;
  --muted: #53657a;
  --line: #d9e3ec;
  --brand: #086f83;
  --brand-strong: #07566a;
  --brand-soft: #dff4f5;
  --accent: #7c3aed;
  --accent-soft: #f0e9ff;
  --success: #13795b;
  --success-soft: #e7f7f1;
  --warning: #9a5a05;
  --warning-soft: #fff5d7;
  --danger: #b42318;
  --shadow: 0 18px 48px rgba(16, 32, 51, 0.09);
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 10px;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  min-height: 100vh;
  background:
    radial-gradient(circle at 8% -5%, rgba(8, 111, 131, 0.15), transparent 30rem),
    radial-gradient(circle at 95% 4%, rgba(124, 58, 237, 0.11), transparent 28rem),
    var(--page);
  color: var(--ink);
  line-height: 1.55;
}

body[data-engine="sast"],
.engine-page--sast {
  --page: #f5f7ff;
  --surface: #ffffff;
  --surface-soft: #eef2ff;
  --ink: #172554;
  --muted: #56627d;
  --line: #d9def4;
  --brand: #3157c8;
  --brand-strong: #243d9b;
  --brand-soft: #e8edff;
  --accent: #7047d7;
  background:
    radial-gradient(circle at 8% -5%, rgba(49, 87, 200, 0.18), transparent 30rem),
    radial-gradient(circle at 95% 4%, rgba(112, 71, 215, 0.12), transparent 28rem),
    var(--page);
}

body[data-engine="iast"],
.engine-page--iast {
  color-scheme: dark;
  --page: #06131b;
  --surface: #0d202b;
  --surface-soft: #112b38;
  --ink: #eefcf8;
  --muted: #a7c2c4;
  --line: #244552;
  --brand: #0f8f91;
  --brand-strong: #61ded1;
  --brand-soft: #123d3e;
  --accent: #2bc77e;
  --accent-soft: #123c2c;
  --success: #65d6a8;
  --success-soft: #123c2c;
  --warning: #f5c451;
  --warning-soft: #3b3015;
  --shadow: 0 18px 48px rgba(0, 0, 0, 0.3);
  background:
    radial-gradient(circle at 12% -4%, rgba(15, 143, 145, 0.36), transparent 32rem),
    radial-gradient(circle at 94% 2%, rgba(43, 199, 126, 0.18), transparent 28rem),
    var(--page);
}

body[data-engine="dast-passive"],
.engine-page--dast {
  --page: #fff9f1;
  --surface: #ffffff;
  --surface-soft: #fff0dc;
  --ink: #3c2415;
  --muted: #755f4f;
  --line: #ead8c3;
  --brand: #c45121;
  --brand-strong: #923915;
  --brand-soft: #ffe7d5;
  --accent: #d18a16;
  background:
    radial-gradient(circle at 8% -5%, rgba(196, 81, 33, 0.18), transparent 30rem),
    radial-gradient(circle at 95% 4%, rgba(209, 138, 22, 0.14), transparent 28rem),
    var(--page);
}

.engine-page--sca {
  --page: #fbf7ff;
  --surface: #ffffff;
  --surface-soft: #f4ebff;
  --ink: #33204d;
  --muted: #6b5b7c;
  --line: #e3d6ef;
  --brand: #8053b5;
  --brand-strong: #5e378d;
  --brand-soft: #efe3fa;
  --accent: #ba4f92;
}

body[data-engine="iast"] .site-header,
.engine-page--iast .site-header {
  border-bottom-color: rgba(36, 69, 82, 0.9);
  background: rgba(6, 19, 27, 0.9);
}

a {
  color: var(--brand-strong);
}

a:hover {
  color: var(--brand);
}

button,
input,
select,
textarea {
  font: inherit;
}

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

:focus-visible {
  outline: 3px solid rgba(124, 58, 237, 0.35);
  outline-offset: 3px;
}

.skip-link {
  position: fixed;
  left: 16px;
  top: 12px;
  z-index: 20;
  padding: 9px 12px;
  border-radius: var(--radius-sm);
  background: var(--ink);
  color: #fff;
  transform: translateY(-150%);
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid rgba(217, 227, 236, 0.85);
  background: rgba(244, 247, 251, 0.9);
  backdrop-filter: blur(16px);
}

.site-header__inner,
.page-shell {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
}

.site-header__inner {
  min-height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  color: var(--ink);
  text-decoration: none;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.brand__mark {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--brand), var(--accent));
  color: #fff;
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  box-shadow: 0 10px 24px rgba(8, 111, 131, 0.24);
}

.site-nav {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
}

.site-nav a {
  padding: 8px 10px;
  border-radius: 9px;
  color: var(--muted);
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 650;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  background: var(--surface);
  color: var(--brand-strong);
}

.page-shell {
  padding: 58px 0 72px;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(280px, 0.65fr);
  align-items: center;
  gap: 42px;
  margin-bottom: 54px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--brand-strong);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.hero h1,
.engine-hero h1 {
  max-width: 820px;
  margin: 0;
  font-size: clamp(2.35rem, 5.4vw, 4.85rem);
  line-height: 0.98;
  letter-spacing: -0.055em;
}

.engine-hero h1 {
  font-size: clamp(2.2rem, 4.5vw, 4rem);
}

.hero__lede,
.engine-hero__lede {
  max-width: 760px;
  margin: 22px 0 0;
  color: var(--muted);
  font-size: clamp(1.05rem, 1.8vw, 1.24rem);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 16px;
  border: 1px solid transparent;
  border-radius: 11px;
  background: var(--brand);
  color: #fff;
  text-decoration: none;
  font-weight: 750;
  cursor: pointer;
}

.button:hover {
  background: var(--brand-strong);
  color: #fff;
}

.button--secondary {
  border-color: var(--line);
  background: var(--surface);
  color: var(--ink);
}

.button--secondary:hover {
  background: var(--surface-soft);
  color: var(--ink);
}

.hero__panel,
.notice,
.mode-card,
.engine-card,
.case-card,
.catalogue-panel,
.info-panel {
  border: 1px solid var(--line);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.hero__panel {
  padding: 24px;
  border-radius: var(--radius-lg);
}

.hero__panel h2 {
  margin: 0 0 10px;
  font-size: 1.02rem;
}

.hero__panel p {
  margin: 0;
  color: var(--muted);
}

.hero__panel dl {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 9px 18px;
  margin: 22px 0 0;
}

.hero__panel dt {
  color: var(--muted);
}

.hero__panel dd {
  margin: 0;
  font-weight: 800;
}

.notice {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin: 0 0 34px;
  padding: 16px 18px;
  border-radius: var(--radius-md);
  box-shadow: none;
}

.notice--warning {
  border-color: #ecd59f;
  background: var(--warning-soft);
}

.notice--success {
  border-color: #b6dfd2;
  background: var(--success-soft);
}

.notice__icon {
  width: 27px;
  height: 27px;
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--ink);
  color: #fff;
  font-size: 0.76rem;
  font-weight: 800;
}

.notice p {
  margin: 0;
}

.section {
  margin-top: 62px;
}

.section-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 22px;
}

.section-heading h2 {
  margin: 0;
  font-size: clamp(1.65rem, 3vw, 2.35rem);
  letter-spacing: -0.035em;
}

.section-heading p {
  max-width: 630px;
  margin: 7px 0 0;
  color: var(--muted);
}

.mode-grid,
.engine-grid,
.case-grid {
  display: grid;
  gap: 18px;
}

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

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

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

.mode-card,
.engine-card {
  padding: 22px;
  border-radius: var(--radius-md);
  box-shadow: none;
}

.mode-card h3,
.engine-card h3 {
  margin: 9px 0 7px;
  font-size: 1.08rem;
}

.mode-card p,
.engine-card p {
  margin: 0;
  color: var(--muted);
}

.engine-card {
  display: flex;
  min-height: 210px;
  flex-direction: column;
  color: inherit;
  text-decoration: none;
  transition: transform 160ms ease, border-color 160ms ease, box-shadow 160ms ease;
}

.engine-card:hover {
  transform: translateY(-3px);
  border-color: rgba(8, 111, 131, 0.38);
  box-shadow: var(--shadow);
  color: inherit;
}

.engine-card__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: auto;
  padding-top: 20px;
  font-weight: 800;
}

.badge-row {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}

.badge {
  display: inline-flex;
  align-items: center;
  min-height: 27px;
  padding: 4px 9px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface-soft);
  color: var(--muted);
  font-size: 0.75rem;
  font-weight: 750;
}

.badge--primary {
  border-color: #b6dfd2;
  background: #e7f7f1;
  color: var(--success);
}

.badge--mixed,
.badge--support {
  border-color: #ecd59f;
  background: var(--warning-soft);
  color: var(--warning);
}

.badge--preview {
  border-color: #d3bdf7;
  background: var(--accent-soft);
  color: #5b21b6;
}

.catalogue-panel,
.info-panel {
  padding: 22px;
  border-radius: var(--radius-lg);
}

.filter-bar {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 12px;
  margin-bottom: 20px;
}

.field label {
  display: block;
  margin-bottom: 6px;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 750;
}

.field input,
.field select {
  width: 100%;
  min-height: 43px;
  padding: 9px 11px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--surface);
  color: var(--ink);
}

.catalogue-summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin: 0 0 18px;
  color: var(--muted);
  font-size: 0.9rem;
}

.catalogue-more {
  display: flex;
  justify-content: center;
  margin-top: 22px;
}

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

.case-card {
  display: flex;
  min-width: 0;
  min-height: 235px;
  flex-direction: column;
  padding: 19px;
  border-radius: var(--radius-md);
  box-shadow: none;
}

.case-card h3 {
  margin: 13px 0 8px;
  font-size: 1.05rem;
  line-height: 1.3;
}

.case-card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.91rem;
}

.case-card__category {
  color: var(--brand-strong);
  font-size: 0.74rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.case-card__route {
  overflow-wrap: anywhere;
  margin-top: 14px;
  color: var(--muted);
  font-family: ui-monospace, "SFMono-Regular", Consolas, monospace;
  font-size: 0.76rem;
}

.case-card__actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 9px;
  margin-top: auto;
  padding-top: 18px;
}

.case-card__actions .button {
  min-height: 38px;
  padding: 7px 11px;
  font-size: 0.84rem;
}

.empty-state {
  grid-column: 1 / -1;
  padding: 36px 20px;
  border: 1px dashed var(--line);
  border-radius: var(--radius-md);
  color: var(--muted);
  text-align: center;
}

.engine-hero {
  margin-bottom: 34px;
}

.engine-page .engine-hero,
body[data-engine] .engine-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(24px, 5vw, 48px);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, var(--surface), var(--surface-soft));
  box-shadow: var(--shadow);
}

.engine-page .engine-hero::after,
body[data-engine] .engine-hero::after {
  position: absolute;
  right: -72px;
  bottom: -112px;
  width: 270px;
  height: 270px;
  border: 44px solid color-mix(in srgb, var(--accent) 18%, transparent);
  border-radius: 50%;
  content: "";
  pointer-events: none;
}

.family-hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.family-hero__facts span {
  padding: 9px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
  color: var(--muted);
  font-size: 0.9rem;
}

.family-hero__facts strong {
  color: var(--ink);
}

.notice--engine {
  border-left: 4px solid var(--accent);
}

.family-case-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.family-case-card {
  display: flex;
  min-width: 0;
  flex-direction: column;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.family-case-card__meta {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 8px;
  color: var(--brand-strong);
  font-family: ui-monospace, "SFMono-Regular", Consolas, monospace;
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.family-case-card h2 {
  margin: 14px 0 8px;
  font-size: 1.25rem;
  line-height: 1.25;
}

.family-case-card p {
  margin: 0;
  color: var(--muted);
}

.family-case-card .button-row {
  margin-top: auto;
  padding-top: 20px;
}

.advanced-lab-panel {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  margin-top: 42px;
  padding: 26px;
  border: 1px dashed var(--line);
  border-radius: var(--radius-lg);
  background: var(--surface-soft);
}

.advanced-lab-panel h2,
.advanced-lab-panel p {
  margin: 0;
}

.advanced-lab-panel p:not(.eyebrow) {
  max-width: 720px;
  margin-top: 8px;
  color: var(--muted);
}

.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 22px;
  color: var(--muted);
  font-size: 0.9rem;
}

.breadcrumbs a {
  color: var(--muted);
}

.status-line {
  display: flex;
  align-items: center;
  gap: 9px;
  margin-top: 14px;
  font-weight: 750;
}

.status-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--warning);
  box-shadow: 0 0 0 5px rgba(154, 90, 5, 0.12);
}

.status-dot--ready {
  background: var(--success);
  box-shadow: 0 0 0 5px rgba(19, 121, 91, 0.12);
}

.command {
  overflow-x: auto;
  display: block;
  margin: 16px 0 0;
  padding: 13px 15px;
  border-radius: 12px;
  background: var(--ink);
  color: #e8f0f7;
  font-family: ui-monospace, "SFMono-Regular", Consolas, monospace;
  font-size: 0.87rem;
}

.target-proof {
  display: inline-flex;
  min-height: 2.75rem;
  align-items: center;
  margin: 1rem 0 0;
  padding: 0.7rem 0.9rem;
  border: 1px solid var(--border);
  border-radius: 0.8rem;
  background: var(--surface-muted);
  color: var(--ink);
  font-family: var(--font-mono);
  font-weight: 750;
  overflow-wrap: anywhere;
}

.target-proof[data-disclosure="present"] {
  border-color: #e9b75b;
  background: #fff5d8;
}

.target-proof[data-disclosure="absent"] {
  border-color: #7bcbb1;
  background: #e9fbf4;
}

.automation-boundary {
  border-left: 4px solid var(--accent);
}

.mission-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

.mission-card {
  display: flex;
  flex-direction: column;
  min-height: 330px;
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.mission-card h2 {
  margin: 0 0 10px;
  font-size: clamp(1.45rem, 3vw, 2rem);
  letter-spacing: -0.035em;
}

.mission-card > p:not(.eyebrow) {
  margin: 0 0 20px;
  color: var(--muted);
}

.mission-card__facts {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px 18px;
  margin: 24px 0;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

.mission-card__facts dt {
  color: var(--muted);
}

.mission-card__facts dd {
  margin: 0;
  font-weight: 800;
}

.mission-card > .button {
  align-self: flex-start;
  margin-top: auto;
}

.product-preview {
  padding: clamp(24px, 4vw, 42px);
  border: 1px solid #d9c8f5;
  border-radius: var(--radius-lg);
  background:
    radial-gradient(circle at 95% 0%, rgba(124, 58, 237, 0.12), transparent 24rem),
    rgba(255, 255, 255, 0.72);
}

.product-preview-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 18px;
}

.product-preview-card {
  display: flex;
  min-height: 300px;
  flex-direction: column;
  padding: 22px;
  border: 1px solid #ddd1f2;
  border-radius: var(--radius-md);
  background: var(--surface);
  box-shadow: 0 14px 34px rgba(53, 31, 92, 0.08);
}

.product-preview-card h3 {
  margin: 18px 0 8px;
  font-size: 1.22rem;
}

.product-preview-card > p {
  margin: 0;
  color: var(--muted);
}

.product-preview-card__facts {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 7px 16px;
  margin: 20px 0;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}

.product-preview-card__facts dt {
  color: var(--muted);
}

.product-preview-card__facts dd {
  margin: 0;
  font-weight: 800;
}

.product-preview-card > .button,
.product-preview-card__note {
  align-self: flex-start;
  margin-top: auto;
}

.product-preview-card__note {
  padding-top: 14px;
  font-size: 0.86rem;
  font-weight: 750;
}

.mission-hero,
.target-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(280px, 0.65fr);
  align-items: start;
  gap: 34px;
  margin-bottom: 34px;
}

.mission-hero h1,
.target-hero h1 {
  margin: 0;
  font-size: clamp(2.2rem, 5vw, 4.4rem);
  line-height: 1;
  letter-spacing: -0.052em;
}

.mission-hero__lede,
.target-hero__lede {
  max-width: 760px;
  margin: 20px 0;
  color: var(--muted);
  font-size: clamp(1.02rem, 1.8vw, 1.2rem);
}

.mission-progress,
.target-facts {
  margin: 0;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.mission-progress h2 {
  margin: 0 0 16px;
  font-size: 1.15rem;
}

.mission-progress .button {
  width: 100%;
  margin-top: 18px;
}

.progress-track {
  overflow: hidden;
  height: 10px;
  border-radius: 999px;
  background: var(--surface-soft);
}

.progress-track span {
  display: block;
  width: 0;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--brand), var(--accent));
  transition: width 180ms ease;
}

.mission-mode-panel {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--surface);
}

.mission-mode-panel h2 {
  margin: 0;
  font-size: 1.25rem;
}

.mission-mode-panel p:not(.eyebrow) {
  max-width: 620px;
  margin: 6px 0 0;
  color: var(--muted);
}

.mode-switch {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 6px;
  padding: 5px;
  border: 1px solid var(--line);
  border-radius: 13px;
  background: var(--surface-soft);
}

.mode-switch button {
  min-height: 38px;
  padding: 7px 12px;
  border: 0;
  border-radius: 9px;
  background: transparent;
  color: var(--muted);
  font-weight: 750;
  cursor: pointer;
}

.mode-switch button[aria-pressed="true"] {
  background: var(--surface);
  color: var(--brand-strong);
  box-shadow: 0 4px 14px rgba(16, 32, 51, 0.1);
}

.objective-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  align-items: start;
  gap: 18px;
}

.objective-card {
  overflow: hidden;
  padding: 21px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--surface);
  box-shadow: 0 12px 32px rgba(16, 32, 51, 0.06);
}

.objective-card--locked {
  border-style: dashed;
  background: rgba(238, 244, 248, 0.65);
  box-shadow: none;
}

.objective-card--complete {
  border-color: #9fd4c4;
  box-shadow: inset 0 4px 0 var(--success);
}

.objective-card__heading {
  display: flex;
  align-items: flex-start;
  gap: 13px;
}

.objective-card__heading h3 {
  margin: 0;
  font-size: 1.15rem;
}

.objective-number {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  flex: 0 0 auto;
  border-radius: 12px;
  background: var(--brand-soft);
  color: var(--brand-strong);
  font-weight: 850;
}

.objective-card__summary,
.objective-lock {
  margin: 16px 0;
  color: var(--muted);
}

.objective-steps {
  margin: 18px 0;
  padding-left: 20px;
  color: var(--muted);
}

.objective-steps li + li {
  margin-top: 7px;
}

.objective-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  margin-top: 18px;
}

.objective-actions .button {
  min-height: 39px;
  padding: 8px 11px;
  font-size: 0.85rem;
}

.objective-hint {
  margin-top: 16px;
  padding: 12px 13px;
  border: 1px solid var(--line);
  border-radius: 11px;
  background: var(--surface-soft);
}

.objective-hint summary {
  color: var(--brand-strong);
  font-weight: 750;
  cursor: pointer;
}

.objective-hint p {
  margin: 8px 0 0;
  color: var(--muted);
}

.demo-cue {
  margin-top: 16px;
  padding: 13px;
  border-left: 4px solid var(--accent);
  border-radius: 0 10px 10px 0;
  background: var(--accent-soft);
}

.demo-cue p {
  margin: 4px 0 0;
  color: var(--muted);
}

.demo-progress__next {
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.demo-preparation {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.demo-step-number,
.demo-chapter__number {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 13px;
  background: linear-gradient(135deg, var(--brand), var(--accent));
  color: #fff;
  font-weight: 850;
}

.demo-journey {
  display: grid;
  gap: 26px;
}

.demo-chapter {
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.demo-chapter--complete {
  border-color: #9fd4c4;
  box-shadow: inset 0 4px 0 var(--success), var(--shadow);
}

.demo-chapter__header {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: start;
  gap: 16px;
}

.demo-chapter__header h3 {
  margin: 0;
  font-size: clamp(1.45rem, 3vw, 2rem);
  letter-spacing: -0.035em;
}

.demo-chapter__header p:not(.eyebrow) {
  max-width: 760px;
  margin: 7px 0 0;
  color: var(--muted);
}

.demo-chapter__engines {
  margin: 18px 0 0 58px;
}

.demo-chapter__body {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 20px;
  margin-top: 22px;
}

.demo-presenter,
.demo-evidence {
  padding: 21px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--surface-soft);
}

.demo-presenter h4,
.demo-evidence h4 {
  margin: 0;
  font-size: 1.08rem;
}

.demo-presenter .objective-steps {
  margin-bottom: 0;
}

.demo-evidence__list {
  display: grid;
  gap: 12px;
  margin-top: 18px;
}

.demo-evidence__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: start;
  gap: 10px;
}

.demo-evidence__item p {
  margin: 2px 0 0;
  color: var(--muted);
}

.demo-checkpoint {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: end;
  gap: 9px 12px;
  margin-top: 20px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
}

.demo-checkpoint label {
  grid-column: 1 / -1;
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 750;
}

.demo-checkpoint select {
  width: 100%;
  min-height: 44px;
  padding: 9px 11px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #fff;
  color: var(--ink);
}

.demo-checkpoint .objective-feedback {
  grid-column: 1 / -1;
  margin: 0;
}

.demo-chapter__complete {
  margin: 20px 0 0;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

.demo-conclusion .notice {
  align-items: center;
  margin-bottom: 0;
  padding: 24px;
}

.demo-conclusion h2 {
  margin: 0;
  font-size: clamp(1.45rem, 3vw, 2rem);
}

.demo-conclusion .notice p:last-child {
  margin-top: 7px;
  color: var(--muted);
}

.objective-completion {
  margin-top: 18px;
  padding-top: 17px;
  border-top: 1px solid var(--line);
}

.objective-completion label {
  display: block;
  margin-bottom: 6px;
  color: var(--muted);
  font-size: 0.8rem;
  font-weight: 750;
}

.objective-completion input,
.objective-completion select {
  width: 100%;
  min-height: 43px;
  padding: 9px 11px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #fff;
  color: var(--ink);
}

.objective-completion .button {
  width: 100%;
  margin-top: 10px;
}

.objective-feedback,
.objective-complete-message {
  margin: 10px 0 0;
  font-size: 0.86rem;
  font-weight: 700;
}

.objective-feedback[data-status="error"] {
  color: var(--danger);
}

.objective-feedback[data-status="success"],
.objective-complete-message {
  color: var(--success);
}

.scanner-target-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.scanner-target-card {
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--surface);
}

.scanner-target-card h3 {
  margin: 0 0 8px;
}

.scanner-target-card > p:not(.eyebrow) {
  color: var(--muted);
}

.scanner-runtime-panel {
  display: grid;
  grid-template-columns: minmax(250px, 0.8fr) minmax(300px, 1.2fr);
  align-items: center;
  gap: 18px 30px;
}

.scanner-runtime-panel > p {
  grid-column: 1 / -1;
  margin: 0;
  color: var(--muted);
}

.runtime-status {
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.runtime-status .status-dot {
  flex: 0 0 auto;
  margin-top: 5px;
}

.runtime-status p {
  margin: 5px 0 0;
  color: var(--muted);
}

.scanner-command {
  display: grid;
  gap: 7px;
}

.scanner-command span {
  color: var(--muted);
  font-size: 0.8rem;
  font-weight: 750;
}

.scanner-command code {
  overflow-wrap: anywhere;
  padding: 12px 14px;
  border-radius: 9px;
  background: var(--ink);
  color: #e8f0f7;
}

.scanner-directory {
  display: grid;
  gap: 22px;
}

.scanner-directory__mission {
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--surface-soft);
}

.scanner-directory__heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 22px;
  margin-bottom: 18px;
}

.scanner-directory__heading h3 {
  margin: 0 0 8px;
  font-size: clamp(1.35rem, 2.6vw, 1.8rem);
}

.scanner-directory__heading p:not(.eyebrow) {
  max-width: 760px;
  margin: 0;
  color: var(--muted);
}

.scanner-directory__target {
  display: flex;
  flex-direction: column;
}

.scanner-directory__target .objective-actions {
  margin-top: auto;
  padding-top: 18px;
}

.scanner-target-facts {
  margin-top: 18px;
}

.scanner-setup {
  margin-bottom: 0;
  font-size: 0.9rem;
}

.scanner-mission-link {
  display: inline-block;
  margin-top: 16px;
  font-weight: 750;
}

.scanner-route {
  display: block;
  overflow-wrap: anywhere;
  padding: 11px 13px;
  border-radius: 9px;
  background: var(--ink);
  color: #e8f0f7;
}

.play-layout {
  display: grid;
  grid-template-columns: minmax(220px, 0.32fr) minmax(0, 1fr);
  align-items: start;
  gap: 30px;
}

.entry-grid,
.evidence-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}

.entry-card,
.evidence-grid article,
.demo-callout,
.migration-callout {
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.entry-card--play {
  background: linear-gradient(145deg, var(--surface), var(--brand-soft));
}

.entry-card h3,
.evidence-grid h3 {
  margin: 14px 0 8px;
}

.entry-card p,
.evidence-grid p,
.demo-callout p,
.migration-callout p {
  color: var(--muted);
}

.entry-card .button {
  margin-top: 10px;
}

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

.demo-callout,
.migration-callout {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.demo-callout > div:first-child,
.migration-callout > div:first-child {
  max-width: 760px;
}

.demo-callout h2,
.migration-callout h2 {
  margin: 4px 0 8px;
}

.playlist-panel {
  position: sticky;
  top: 96px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.playlist-panel nav {
  display: grid;
  gap: 8px;
  margin: 12px 0 20px;
}

.playlist-option {
  padding: 11px 13px;
  border-radius: 10px;
  color: var(--ink);
  font-weight: 750;
  text-decoration: none;
}

.playlist-option:hover,
.playlist-option--active {
  background: var(--brand-soft);
  color: var(--brand-strong);
}

.challenge-list,
.challenge-grid {
  display: grid;
  gap: 18px;
}

.challenge-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 22px;
}

.challenge-card {
  position: relative;
  min-width: 0;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.challenge-card--advanced-lab {
  background: linear-gradient(180deg, var(--surface), #fbfaf6);
}

.challenge-card__number {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  margin-bottom: 14px;
  border-radius: 50%;
  background: var(--ink);
  color: #fff;
  font-weight: 850;
}

.challenge-card__heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
}

.challenge-card__heading-copy {
  min-width: 0;
  max-width: 100%;
}

.challenge-card__heading h2 {
  margin: 2px 0 8px;
  font-size: clamp(1.15rem, 2vw, 1.45rem);
}

.challenge-card > p {
  color: var(--muted);
}

.challenge-card__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.challenge-card__preview {
  padding: 12px 14px;
  border-left: 3px solid var(--warning);
  border-radius: 8px;
  background: var(--warning-soft);
  color: var(--ink) !important;
  font-size: 0.9rem;
}

.challenge-card__note {
  margin-bottom: 0;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  font-size: 0.86rem;
}

.corpus-strip {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  overflow: hidden;
  margin: 28px 0;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--surface);
}

.corpus-strip div {
  display: grid;
  gap: 3px;
  padding: 18px;
  border-right: 1px solid var(--line);
}

.corpus-strip div:last-child {
  border-right: 0;
}

.corpus-strip strong {
  font-size: 1.6rem;
}

.corpus-strip span {
  color: var(--muted);
  font-size: 0.78rem;
}

.filter-bar--explore {
  grid-template-columns: minmax(240px, 1.4fr) repeat(3, minmax(150px, 0.7fr));
}

.target-shell {
  max-width: 1080px;
}

.atomic-shell {
  max-width: 1120px;
  padding-top: 34px;
}

.atomic-shell > .breadcrumbs {
  margin-bottom: 22px;
}

.atomic-hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: end;
  gap: 36px;
  overflow: hidden;
  padding: clamp(28px, 5vw, 52px);
  border: 1px solid var(--line);
  border-top: 5px solid var(--warning);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(135deg, var(--surface) 0%, var(--surface) 60%, var(--brand-soft) 100%);
  box-shadow: var(--shadow);
}

.atomic-hero::after {
  content: "";
  position: absolute;
  right: -90px;
  top: -130px;
  width: 260px;
  height: 260px;
  border: 46px solid color-mix(in srgb, var(--brand) 12%, transparent);
  border-radius: 50%;
  pointer-events: none;
}

.atomic-hero--fixed {
  border-top-color: var(--success);
}

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

.atomic-hero__copy {
  max-width: 760px;
}

.atomic-kicker {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 9px;
  margin-bottom: 18px;
}

.atomic-engine-badge,
.atomic-state-badge {
  display: inline-flex;
  align-items: center;
  min-height: 29px;
  padding: 5px 10px;
  border-radius: 999px;
  font-size: 0.74rem;
  font-weight: 850;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.atomic-engine-badge {
  background: var(--brand);
  color: #fff;
}

.atomic-state-badge {
  border: 1px solid color-mix(in srgb, var(--warning) 35%, var(--line));
  background: var(--warning-soft);
  color: var(--warning);
}

.atomic-hero--fixed .atomic-state-badge {
  border-color: color-mix(in srgb, var(--success) 35%, var(--line));
  background: var(--success-soft);
  color: var(--success);
}

.atomic-hero h1 {
  max-width: 820px;
  margin: 0;
  font-size: clamp(2.1rem, 4.5vw, 4rem);
  line-height: 1.02;
  letter-spacing: -0.045em;
  overflow-wrap: anywhere;
}

.atomic-hero__copy > p {
  max-width: 720px;
  margin: 20px 0 0;
  color: var(--muted);
  font-size: 1.08rem;
}

.atomic-hero__actions {
  display: grid;
  gap: 10px;
  min-width: 205px;
}

.atomic-steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  padding: 0;
  margin: 22px 0 0;
  list-style: none;
}

.atomic-steps li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: start;
  gap: 12px;
  padding: 17px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: color-mix(in srgb, var(--surface) 88%, transparent);
}

.atomic-steps li > span {
  display: grid;
  place-items: center;
  width: 29px;
  height: 29px;
  border-radius: 9px;
  background: var(--brand-soft);
  color: var(--brand-strong);
  font-size: 0.78rem;
  font-weight: 850;
}

.atomic-steps strong {
  display: block;
  margin: 2px 0 5px;
  font-size: 0.92rem;
}

.atomic-steps p {
  margin: 0;
  color: var(--muted);
  font-size: 0.82rem;
  line-height: 1.45;
}

.atomic-workbench {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 0.92fr);
  align-items: stretch;
  gap: 20px;
  margin-top: 42px;
}

.atomic-panel {
  min-width: 0;
  padding: clamp(22px, 3vw, 32px);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.atomic-panel--evidence {
  background:
    linear-gradient(145deg, var(--surface) 0%, var(--surface) 68%, var(--surface-soft) 100%);
}

.atomic-panel__heading {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 25px;
}

.atomic-panel__heading .eyebrow {
  margin-bottom: 5px;
}

.atomic-panel__heading h2 {
  margin: 0;
  font-size: clamp(1.35rem, 2.5vw, 1.85rem);
  letter-spacing: -0.035em;
}

.atomic-panel__step {
  color: color-mix(in srgb, var(--brand) 42%, var(--muted));
  font-size: 1.7rem;
  font-weight: 850;
  line-height: 1;
}

.atomic-field-label {
  display: block;
  margin-bottom: 8px;
  font-size: 0.86rem;
  font-weight: 800;
}

.atomic-input {
  display: block;
  width: 100%;
  min-height: 118px;
  resize: vertical;
  padding: 14px 15px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--surface-soft);
  color: var(--ink);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.88rem;
  line-height: 1.5;
}

.atomic-input:focus {
  border-color: var(--brand);
  outline: 3px solid color-mix(in srgb, var(--brand) 18%, transparent);
  outline-offset: 1px;
}

.atomic-help {
  margin: 11px 0 0;
  color: var(--muted);
  font-size: 0.82rem;
}

.atomic-action-row,
.atomic-support-form {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
}

.atomic-action-row {
  margin-top: 22px;
}

.atomic-support-form {
  margin-top: 14px;
}

.atomic-action-row .button,
.atomic-support-form .button {
  min-width: 170px;
}

.atomic-output {
  min-height: 148px;
  overflow-wrap: anywhere;
  padding: 18px;
  border: 1px dashed color-mix(in srgb, var(--brand) 38%, var(--line));
  border-radius: 14px;
  background: var(--surface-soft);
}

.atomic-output:empty::before {
  content: attr(data-empty-label);
  color: var(--muted);
  font-size: 0.9rem;
}

.atomic-preview {
  display: block;
  width: 100%;
  min-height: 170px;
  margin-top: 14px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: #fff;
}

.atomic-evidence-status {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  min-height: 36px;
  margin: 16px 0 0;
  padding: 7px 12px;
  border-radius: 999px;
  background: var(--surface-soft);
  color: var(--muted);
  font-size: 0.84rem;
  font-weight: 800;
}

.atomic-evidence-status > span {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--muted);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--muted) 14%, transparent);
}

.atomic-evidence-status[data-state="running"] {
  color: var(--warning);
}

.atomic-evidence-status[data-state="running"] > span {
  background: var(--warning);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--warning) 15%, transparent);
}

.atomic-evidence-status[data-state="complete"] {
  color: var(--success);
}

.atomic-evidence-status[data-state="complete"] > span {
  background: var(--success);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--success) 15%, transparent);
}

.atomic-evidence-status[data-state="boundary"] {
  color: var(--warning);
}

.atomic-pair-note {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  margin-top: 22px;
  padding: 24px 26px;
  border: 1px solid color-mix(in srgb, var(--warning) 30%, var(--line));
  border-radius: var(--radius-lg);
  background: var(--warning-soft);
}

.atomic-pair-note--fixed {
  border-color: color-mix(in srgb, var(--success) 30%, var(--line));
  background: var(--success-soft);
}

.atomic-pair-note .eyebrow {
  margin-bottom: 4px;
}

.atomic-pair-note h2 {
  margin: 0;
  font-size: 1.18rem;
}

.atomic-pair-note p:last-child {
  max-width: 740px;
  margin: 7px 0 0;
  color: var(--muted);
}

.atomic-pair-note .button {
  flex: 0 0 auto;
}

.target-facts {
  display: grid;
  gap: 12px;
}

.target-facts div {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 18px;
}

.target-facts dt {
  color: var(--muted);
}

.target-facts dd {
  margin: 0;
  font-weight: 800;
}

.widget-stage {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(260px, 0.6fr);
  align-items: start;
  gap: 20px;
  margin-top: 34px;
}

.widget-card,
.proof-panel {
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.widget-card__heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
}

.widget-card__heading h2,
.proof-panel h2 {
  margin: 0;
}

.status-pill {
  padding: 6px 10px;
  border-radius: 999px;
  background: var(--warning-soft);
  color: var(--warning);
  font-size: 0.78rem;
  font-weight: 800;
}

.status-pill--safe {
  background: var(--success-soft);
  color: var(--success);
}

.support-thread {
  min-height: 170px;
  margin-top: 22px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--surface-soft);
}

.support-thread strong {
  display: block;
  padding: 13px 15px;
  border-radius: 12px 12px 12px 3px;
  background: var(--brand-soft);
  color: var(--brand-strong);
}

.support-thread__empty {
  margin: 0;
  color: var(--muted);
}

.widget-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.workspace-form {
  margin-top: 22px;
}

.workspace-form label {
  display: block;
  margin-bottom: 7px;
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 750;
}

.workspace-form textarea {
  width: 100%;
  min-height: 118px;
  padding: 12px 14px;
  resize: vertical;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #fff;
  color: var(--ink);
  font: inherit;
}

.proof-panel p:not(.eyebrow) {
  color: var(--muted);
}

.proof-panel--safe {
  border-color: #b6dfd2;
}

.proof-token {
  display: block;
  overflow-wrap: anywhere;
  margin-top: 18px;
  padding: 13px;
  border-radius: 10px;
  background: var(--ink);
  color: #e8f0f7;
  font-family: ui-monospace, "SFMono-Regular", Consolas, monospace;
  font-size: 0.86rem;
}

.site-footer {
  border-top: 1px solid var(--line);
  background: var(--surface);
}

.site-footer__inner {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
  padding: 28px 0 38px;
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 24px;
  color: var(--muted);
  font-size: 0.88rem;
}

.site-footer p {
  margin: 0;
}

.site-footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

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

[hidden] {
  display: none !important;
}

@media (max-width: 920px) {
  .hero,
  .mission-hero,
  .target-hero,
  .atomic-hero,
  .atomic-workbench,
  .widget-stage,
  .scanner-runtime-panel {
    grid-template-columns: 1fr;
  }

  .atomic-hero__actions {
    display: flex;
    flex-wrap: wrap;
  }

  .scanner-runtime-panel > p {
    grid-column: auto;
  }

  .mode-grid,
  .engine-grid,
  .case-grid,
  .family-case-grid,
  .objective-grid,
  .demo-preparation {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .demo-chapter__body {
    grid-template-columns: 1fr;
  }

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

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

  .play-layout {
    grid-template-columns: 1fr;
  }

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

  .demo-callout,
  .migration-callout,
  .advanced-lab-panel,
  .atomic-pair-note {
    align-items: flex-start;
    flex-direction: column;
  }

  .playlist-panel {
    position: static;
  }

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

  .corpus-strip div:nth-child(3) {
    border-right: 0;
  }

  .corpus-strip div:nth-child(n + 4) {
    border-top: 1px solid var(--line);
  }
}

@media (max-width: 680px) {
  .site-header {
    position: static;
  }

  .site-header__inner {
    align-items: flex-start;
    flex-direction: column;
    padding: 14px 0;
  }

  .page-shell {
    padding-top: 38px;
  }

  .hero h1,
  .engine-hero h1 {
    font-size: clamp(2.1rem, 13vw, 3.2rem);
  }

  .mode-grid,
  .engine-grid,
  .case-grid,
  .family-case-grid,
  .challenge-grid,
  .entry-grid,
  .evidence-grid,
  .filter-bar,
  .mission-grid,
  .objective-grid,
  .scanner-target-grid,
  .demo-preparation {
    grid-template-columns: 1fr;
  }

  .atomic-steps {
    grid-template-columns: 1fr;
  }

  .atomic-hero {
    padding: 26px 22px;
  }

  .atomic-hero h1 {
    font-size: clamp(1.9rem, 10vw, 2.8rem);
  }

  .atomic-hero__actions,
  .atomic-hero__actions .button,
  .atomic-action-row,
  .atomic-action-row .button,
  .atomic-support-form,
  .atomic-support-form .button,
  .atomic-pair-note .button {
    width: 100%;
  }

  .atomic-panel {
    padding: 22px 18px;
  }

  .corpus-strip {
    grid-template-columns: 1fr 1fr;
  }

  .corpus-strip div,
  .corpus-strip div:nth-child(3) {
    border-right: 1px solid var(--line);
  }

  .corpus-strip div:nth-child(even) {
    border-right: 0;
  }

  .corpus-strip div:nth-child(n + 3) {
    border-top: 1px solid var(--line);
  }

  .challenge-card__heading {
    flex-direction: column;
  }

  .challenge-card__heading-copy {
    width: 100%;
  }

  .demo-chapter {
    padding: 20px;
  }

  .demo-chapter__header {
    grid-template-columns: auto minmax(0, 1fr);
  }

  .demo-chapter__header .status-pill {
    grid-column: 2;
    justify-self: start;
  }

  .demo-chapter__engines {
    margin-left: 0;
  }

  .demo-checkpoint {
    grid-template-columns: 1fr;
  }

  .demo-checkpoint label,
  .demo-checkpoint .objective-feedback {
    grid-column: auto;
  }

  .section-heading,
  .site-footer__inner,
  .mission-mode-panel,
  .scanner-directory__heading {
    align-items: flex-start;
    flex-direction: column;
  }

  .mode-switch {
    width: 100%;
  }

  .mode-switch button {
    flex: 1 1 40%;
  }

.catalogue-panel {
    padding: 16px;
  }
}

.catalogue-more {
  display: flex;
  justify-content: center;
  margin-top: 24px;
}

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

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