/* Hallmark · macrostructure: Workbench · genre: atmospheric · theme: Midnight · tone: technical · anchor hue: 248 · enrichment: verified-asset placeholder · nav: N5 · footer: Ft5 · pre-emit critique: P5 H5 E4 S5 R5 V4 · contrast: pass (40–41) · slop: pass (42–45) · honest: pass (46) · chrome: pass (47) · tokens: pass (48) · responsive: pass (49) · icons: pass (30) · mobile: pass (34, 49, 50–57) */
@import url("../../tokens.css?v=20260814");

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

html,
body {
  overflow-x: clip;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--banner-height) + var(--space-md));
  background: var(--color-paper);
}

body {
  min-width: 20rem;
  margin: 0;
  padding-block-end: calc(var(--control-height) + var(--space-xl) + env(safe-area-inset-bottom));
  background: var(--gradient-page);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 400;
  line-height: 1.65;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

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

img {
  height: auto;
}

a {
  color: inherit;
  text-decoration-color: color-mix(in oklch, var(--color-accent) 64%, transparent);
  text-underline-offset: 0.18em;
}

a:hover {
  text-decoration-color: var(--color-accent);
}

a:active {
  color: var(--color-accent-soft);
}

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

button,
[role="button"],
.btn,
.nav-link,
.footer-link,
.tab,
.breadcrumb a {
  white-space: nowrap;
}

button {
  border: 0;
}

:focus-visible {
  outline: var(--rule-strong) solid var(--color-focus);
  outline-offset: var(--space-2xs);
}

[hidden] {
  display: none !important;
}

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

h1,
h2,
h3 {
  min-width: 0;
  overflow-wrap: anywhere;
  color: var(--color-ink);
  font-family: var(--font-display);
  font-style: normal;
  font-weight: 700;
  letter-spacing: -0.03em;
}

h1 {
  font-size: var(--text-display);
  line-height: 0.98;
}

h2 {
  font-size: var(--text-2xl);
  line-height: 1.08;
}

h3 {
  font-size: var(--text-lg);
  line-height: 1.18;
}

ul,
ol {
  margin: 0;
  padding-inline-start: 1.25rem;
}

li + li {
  margin-block-start: var(--space-xs);
}

.skip-link {
  position: fixed;
  inset-block-start: var(--space-sm);
  inset-inline-start: var(--space-sm);
  z-index: var(--z-tooltip);
  padding: var(--space-sm) var(--space-md);
  background: var(--color-accent);
  color: var(--color-accent-ink);
  transform: translateY(-180%);
}

.skip-link:focus {
  transform: none;
}

.shell {
  width: min(100%, var(--page-max));
  margin-inline: auto;
  padding-inline: var(--page-gutter);
}

.section {
  padding-block: var(--space-3xl);
}

.section--tight {
  padding-block: var(--space-2xl);
}

.section--deep {
  padding-block: var(--space-4xl) var(--space-3xl);
}

.section-head {
  display: grid;
  gap: var(--space-md);
  margin-block-end: var(--space-xl);
}

.section-head p {
  max-width: 62ch;
  color: var(--color-ink-2);
}

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

.small {
  font-size: var(--text-sm);
}

.source-note {
  color: var(--color-muted);
  font-size: var(--text-sm);
}

.source-note a {
  color: var(--color-ink-2);
}

.freshness-warning {
  width: min(calc(100% - 2rem), var(--page-max));
  margin: calc(var(--banner-height) + var(--space-md)) auto 0;
  padding: var(--space-sm) var(--space-md);
  border: var(--rule-hair) solid var(--color-danger);
  border-radius: var(--radius-sm);
  background: var(--color-paper-3);
  color: var(--color-danger-ink);
}

.wordmark {
  display: inline-flex;
  align-items: center;
  min-height: 2.75rem;
  gap: var(--space-xs);
  font-family: var(--font-display);
  font-size: var(--text-md);
  font-weight: 700;
  letter-spacing: -0.025em;
  text-decoration: none;
  white-space: nowrap;
}

.wordmark::before {
  width: var(--space-xs);
  height: var(--space-xs);
  background: var(--color-accent);
  content: "";
  transform: rotate(45deg);
}

.nav-pill {
  position: fixed;
  inset-block-start: max(var(--space-sm), env(safe-area-inset-top));
  inset-inline-start: 50%;
  z-index: var(--z-sticky-nav);
  display: flex;
  width: min(calc(100% - 2rem), 43rem);
  min-height: 3.75rem;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
  padding: var(--space-xs) var(--space-sm) var(--space-xs) var(--space-md);
  border: var(--rule-hair) solid var(--color-rule);
  border-radius: var(--radius-pill);
  background: color-mix(in oklch, var(--color-paper-2) 90%, transparent);
  box-shadow: var(--shadow-nav);
  transform: translateX(-50%);
  backdrop-filter: blur(1rem) saturate(118%);
}

.nav-links {
  position: absolute;
  inset-block-start: calc(100% + var(--space-xs));
  inset-inline: 0;
  display: none;
  padding: var(--space-sm);
  border: var(--rule-hair) solid var(--color-rule);
  border-radius: var(--radius-lg);
  background: var(--color-paper-2);
  box-shadow: var(--shadow-raised);
}

.nav-pill.is-open .nav-links {
  display: grid;
}

.nav-links a {
  min-height: 2.75rem;
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-sm);
  color: var(--color-ink-2);
  text-decoration: none;
}

.nav-links a[aria-current="page"],
.nav-links a:hover {
  background: var(--color-paper-3);
  color: var(--color-ink);
}

.nav-toggle {
  display: grid;
  width: 2.75rem;
  height: 2.75rem;
  place-items: center;
  border: var(--rule-hair) solid var(--color-rule);
  border-radius: var(--radius-pill);
  background: var(--color-paper-3);
  color: var(--color-ink);
  cursor: pointer;
}

.nav-toggle-lines,
.nav-toggle-lines::before,
.nav-toggle-lines::after {
  display: block;
  width: 1rem;
  height: var(--rule-strong);
  background: currentColor;
  content: "";
}

.nav-toggle-lines {
  position: relative;
}

.nav-toggle-lines::before,
.nav-toggle-lines::after {
  position: absolute;
  inset-inline-start: 0;
}

.nav-toggle-lines::before {
  transform: translateY(-0.32rem);
}

.nav-toggle-lines::after {
  transform: translateY(0.32rem);
}

.nav-download {
  display: none;
}

.btn {
  position: relative;
  display: inline-flex;
  min-height: var(--control-height);
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  padding-inline: var(--space-lg);
  border: var(--rule-hair) solid var(--color-rule-strong);
  border-radius: var(--radius-sm);
  background: var(--color-paper-3);
  color: var(--color-ink);
  font-weight: 700;
  line-height: 1;
  text-align: center;
  text-decoration: none;
  cursor: pointer;
  transition: transform var(--dur-micro) var(--ease-out), background-color var(--dur-short) var(--ease-out), border-color var(--dur-short) var(--ease-out);
}

.btn--primary {
  overflow: clip;
  border-color: var(--color-accent-soft);
  background: var(--color-paper-3);
  color: var(--color-accent);
}

.btn--primary::after {
  position: absolute;
  inset: -40% auto -40% -35%;
  width: 22%;
  background: color-mix(in oklch, var(--color-ink) 34%, transparent);
  content: "";
  pointer-events: none;
  transform: skewX(-18deg) translateX(-260%);
  animation: cta-sheen 3.6s var(--ease-in-out) infinite;
}

.btn--large {
  min-height: 3.75rem;
  padding-inline: var(--space-xl);
  font-size: var(--text-md);
}

.btn--ghost {
  background: transparent;
}

.btn[aria-disabled="true"],
.btn:disabled,
.tab:disabled,
.icon-button:disabled,
.nav-toggle:disabled,
a[aria-disabled="true"] {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

.download-sticky .btn--primary {
  background: var(--gradient-download);
  color: var(--color-accent-ink);
}

.download-sticky .btn--primary:focus-visible {
  outline-color: var(--color-focus-on-accent);
}

.btn[data-state="loading"]::before {
  width: 1rem;
  height: 1rem;
  border: var(--rule-strong) solid currentColor;
  border-inline-end-color: transparent;
  border-radius: var(--radius-pill);
  content: "";
  animation: spin 0.8s linear infinite;
}

.btn[data-state="error"] {
  border-color: var(--color-danger);
  background: var(--color-paper-3);
  color: var(--color-danger-ink);
}

.btn[data-state="success"] {
  border-color: var(--color-success);
  background: var(--color-success);
  color: var(--color-success-ink);
}

@media (hover: hover) and (pointer: fine) {
  .btn:hover {
    transform: translateY(-0.1rem);
  }

  .tab:hover,
  .icon-button:hover,
  .nav-toggle:hover {
    background: var(--color-paper-4);
  }

  .feature-card:hover,
  .intent-card:hover,
  .guide-card:hover,
  .platform-card:hover {
    background: var(--color-paper-3);
    transform: translateY(-0.18rem);
  }
}

.btn:active,
.tab:active,
.icon-button:active,
.nav-toggle:active {
  transform: translateY(var(--rule-hair));
}

.timeline summary:active,
.faq-list summary:active {
  color: var(--color-accent);
}

@keyframes cta-sheen {
  0%, 70% {
    transform: skewX(-18deg) translateX(-260%);
  }
  100% {
    transform: skewX(-18deg) translateX(760%);
  }
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

.hero {
  position: relative;
  display: grid;
  min-height: clamp(38rem, 78dvh, 52rem);
  align-items: center;
  gap: var(--space-xl);
  padding-block: calc(var(--banner-height) + var(--space-lg)) calc(var(--space-4xl) + var(--space-xs));
}

.hero-copy {
  display: grid;
  min-width: 0;
  align-content: center;
  gap: var(--space-lg);
}

.hero-title-en {
  display: block;
  margin-block-start: var(--space-sm);
  color: var(--color-muted);
  font-size: 0.42em;
  letter-spacing: 0.04em;
  line-height: 1.15;
}

.hero-lede {
  max-width: 54ch;
  color: var(--color-ink-2);
  font-size: var(--text-md);
}

.tag-row,
.metric-row,
.hero-actions,
.inline-links {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.tag {
  display: inline-flex;
  min-height: 2rem;
  align-items: center;
  padding-inline: var(--space-sm);
  border: var(--rule-hair) solid var(--color-rule);
  border-radius: var(--radius-pill);
  background: color-mix(in oklch, var(--color-paper-3) 72%, transparent);
  color: var(--color-ink-2);
  font-size: var(--text-sm);
  white-space: nowrap;
}

.metric {
  display: grid;
  min-width: min(10rem, 100%);
  gap: var(--space-2xs);
  padding-inline-end: var(--space-md);
}

.metric strong {
  font-family: var(--font-display);
  font-size: var(--text-md);
  font-variant-numeric: tabular-nums;
}

.metric span {
  color: var(--color-muted);
  font-size: var(--text-sm);
}

.hero-media {
  position: relative;
  min-width: 0;
  overflow: clip;
  border: var(--rule-hair) solid var(--color-rule-strong);
  border-radius: var(--radius-md);
  background: var(--gradient-placeholder);
  box-shadow: var(--shadow-raised);
}

.hero-media img {
  width: 100%;
  aspect-ratio: 40 / 21;
  object-fit: cover;
}

.media-status {
  position: absolute;
  inset-inline: var(--space-md);
  inset-block-end: var(--space-md);
  display: grid;
  gap: var(--space-2xs);
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-sm);
  background: color-mix(in oklch, var(--color-paper) 90%, transparent);
  color: var(--color-ink-2);
  backdrop-filter: blur(0.75rem);
}

.media-status strong {
  color: var(--color-ink);
}

.info-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  border-block: var(--rule-hair) solid var(--color-rule);
}

.info-item {
  display: grid;
  gap: var(--space-2xs);
  padding-block: var(--space-lg);
  border-block-end: var(--rule-hair) solid var(--color-rule);
}

.info-item:last-child {
  border-block-end: 0;
}

.info-item dt {
  color: var(--color-muted);
  font-size: var(--text-sm);
}

.info-item dd {
  color: var(--color-ink);
  font-family: var(--font-display);
  font-size: var(--text-md);
  font-weight: 700;
}

.story-layout {
  display: grid;
  gap: var(--space-xl);
}

.story-copy {
  display: grid;
  max-width: 68ch;
  gap: var(--space-lg);
  color: var(--color-ink-2);
  font-size: var(--text-md);
  line-height: 1.85;
}

.story-fact {
  align-self: start;
  padding: var(--space-lg);
  border: var(--rule-hair) solid var(--color-rule);
  border-radius: var(--radius-md);
  background: var(--color-paper-2);
}

.story-fact strong {
  display: block;
  margin-block-end: var(--space-xs);
  color: var(--color-ink);
}

.feature-grid,
.intent-grid,
.guide-grid,
.platform-grid,
.article-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-md);
}

.feature-card,
.intent-card,
.guide-card,
.platform-card,
.article-card {
  display: grid;
  min-width: 0;
  align-content: start;
  gap: var(--space-sm);
  padding: var(--space-lg);
  border: var(--rule-hair) solid var(--color-rule);
  border-radius: var(--radius-md);
  background: var(--color-paper-2);
  transition: transform var(--dur-short) var(--ease-out), background-color var(--dur-short) var(--ease-out);
}

.feature-card p,
.intent-card p,
.guide-card p,
.platform-card p,
.article-card p {
  color: var(--color-ink-2);
}

.feature-mark {
  width: var(--space-md);
  height: var(--space-md);
  border: var(--rule-strong) solid var(--color-accent);
  transform: rotate(45deg);
}

.gallery-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
  margin-block-end: var(--space-lg);
}

.tab {
  min-height: 2.75rem;
  padding-inline: var(--space-md);
  border: var(--rule-hair) solid var(--color-rule);
  border-radius: var(--radius-pill);
  background: transparent;
  color: var(--color-ink-2);
  cursor: pointer;
  transition: transform var(--dur-micro) var(--ease-out), background-color var(--dur-short) var(--ease-out);
}

.tab[aria-selected="true"] {
  border-color: var(--color-accent-soft);
  background: var(--color-accent);
  color: var(--color-accent-ink);
}

.gallery-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-md);
}

.gallery-slot {
  display: grid;
  aspect-ratio: 16 / 10;
  min-width: 0;
  place-items: center;
  padding: var(--space-md);
  border: var(--rule-hair) dashed var(--color-rule-strong);
  border-radius: var(--radius-sm);
  background: var(--gradient-placeholder);
  color: var(--color-muted);
  text-align: center;
}

.gallery-card {
  position: relative;
  display: block;
  width: 100%;
  min-width: 0;
  overflow: clip;
  border: 0;
  border-radius: var(--radius-sm);
  background: var(--color-paper-3);
  color: var(--color-ink);
  font: inherit;
  padding: 0;
  text-align: start;
  cursor: zoom-in;
}

a.gallery-card {
  cursor: pointer;
}

.gallery-card img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  transition: transform var(--dur-long) var(--ease-out), opacity var(--dur-short) var(--ease-out);
}

.gallery-caption {
  position: absolute;
  inset-inline: 0;
  inset-block-end: 0;
  padding: var(--space-xl) var(--space-md) var(--space-sm);
  background: linear-gradient(to top, color-mix(in oklch, var(--color-paper) 94%, transparent), transparent);
  color: var(--color-ink);
  font-size: var(--text-sm);
  line-height: 1.5;
}

@media (hover: hover) and (pointer: fine) {
  .gallery-card:hover img {
    opacity: 0.9;
    transform: scale(1.02);
  }
}

.empty-state {
  display: grid;
  gap: var(--space-sm);
  padding: var(--space-xl);
  border: var(--rule-hair) solid var(--color-rule);
  border-radius: var(--radius-md);
  background: var(--color-paper-2);
}

.lightbox {
  position: fixed;
  inset: 0;
  width: min(calc(100% - 2rem), 72rem);
  height: fit-content;
  max-height: min(88dvh, 52rem);
  margin: auto;
  padding: var(--space-md);
  border: var(--rule-hair) solid var(--color-rule-strong);
  border-radius: var(--radius-md);
  background: var(--color-paper-2);
  color: var(--color-ink);
  opacity: 0;
  transform: scale(0.97);
  transition: opacity var(--dur-long) var(--ease-out), transform var(--dur-long) var(--ease-out), overlay var(--dur-long) allow-discrete, display var(--dur-long) allow-discrete;
}

.lightbox[open] {
  opacity: 1;
  transform: none;
}

.lightbox::backdrop {
  background: color-mix(in oklch, var(--color-paper) 84%, transparent);
}

.lightbox figure {
  display: grid;
  max-height: calc(88dvh - 5rem);
  gap: var(--space-sm);
}

.lightbox img {
  width: 100%;
  max-height: calc(88dvh - 8rem);
  object-fit: contain;
}

.lightbox-controls {
  display: flex;
  justify-content: space-between;
  gap: var(--space-sm);
}

.icon-button {
  display: grid;
  width: 2.75rem;
  height: 2.75rem;
  place-items: center;
  border: var(--rule-hair) solid var(--color-rule);
  border-radius: var(--radius-pill);
  background: var(--color-paper-3);
  color: var(--color-ink);
  cursor: pointer;
}

.timeline {
  display: grid;
  gap: var(--space-md);
}

.timeline details,
.faq-list details {
  border-block-end: var(--rule-hair) solid var(--color-rule);
}

.timeline summary,
.faq-list summary {
  display: flex;
  min-height: 3.5rem;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  padding-block: var(--space-md);
  color: var(--color-ink);
  font-family: var(--font-display);
  font-weight: 700;
  cursor: pointer;
  list-style: none;
}

.timeline summary::-webkit-details-marker,
.faq-list summary::-webkit-details-marker {
  display: none;
}

.timeline summary::after,
.faq-list summary::after {
  flex: 0 0 auto;
  color: var(--color-accent);
  content: "+";
  font-size: var(--text-md);
}

.timeline details[open] summary::after,
.faq-list details[open] summary::after {
  content: "−";
}

.accordion-panel {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows var(--dur-long) var(--ease-in-out), opacity var(--dur-short) var(--ease-out);
  opacity: 0;
}

details[open] .accordion-panel {
  grid-template-rows: 1fr;
  opacity: 1;
}

.accordion-panel > div {
  overflow: hidden;
}

.accordion-copy {
  display: grid;
  gap: var(--space-sm);
  padding-block: 0 var(--space-lg);
  color: var(--color-ink-2);
}

.rating-panel {
  display: grid;
  gap: var(--space-lg);
  padding: var(--space-xl);
  border: var(--rule-hair) solid var(--color-rule-strong);
  border-radius: var(--radius-md);
  background: var(--color-paper-2);
}

.rating-number {
  color: var(--color-accent);
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  line-height: 1;
}

.data-table-wrap {
  max-width: 100%;
  overflow-x: auto;
  border: var(--rule-hair) solid var(--color-rule);
  border-radius: var(--radius-md);
}

.data-table {
  width: 100%;
  min-width: 38rem;
  border-collapse: collapse;
  font-variant-numeric: tabular-nums;
}

.data-table th,
.data-table td {
  padding: var(--space-sm) var(--space-md);
  border-block-end: var(--rule-hair) solid var(--color-rule);
  text-align: start;
  vertical-align: top;
}

.data-table th {
  background: var(--color-paper-3);
  color: var(--color-ink);
  font-family: var(--font-display);
}

.data-table td {
  color: var(--color-ink-2);
}

.download-hero,
.page-hero {
  display: grid;
  gap: var(--space-lg);
  padding-block: calc(var(--banner-height) + var(--space-2xl)) var(--space-2xl);
}

.page-hero h1,
.download-hero h1 {
  font-size: var(--text-display-small);
}

.page-hero > p,
.download-hero > p {
  max-width: 62ch;
  color: var(--color-ink-2);
  font-size: var(--text-md);
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
  color: var(--color-muted);
  font-size: var(--text-sm);
}

.breadcrumb span[aria-hidden="true"] {
  color: var(--color-rule-strong);
}

.platform-card .btn {
  margin-block-start: auto;
}

.recommended {
  width: fit-content;
  padding: var(--space-2xs) var(--space-sm);
  border-radius: var(--radius-pill);
  background: var(--color-accent);
  color: var(--color-accent-ink);
  font-size: var(--text-sm);
  font-weight: 700;
}

.steps {
  display: grid;
  gap: var(--space-lg);
  counter-reset: install;
}

.step {
  position: relative;
  display: grid;
  gap: var(--space-xs);
  padding-inline-start: 3.5rem;
  counter-increment: install;
}

.step::before {
  position: absolute;
  inset-block-start: 0;
  inset-inline-start: 0;
  display: grid;
  width: 2.5rem;
  height: 2.5rem;
  place-items: center;
  border: var(--rule-hair) solid var(--color-accent-soft);
  border-radius: var(--radius-sm);
  color: var(--color-accent);
  content: counter(install, decimal-leading-zero);
  font-family: var(--font-display);
  font-weight: 700;
}

.requirements-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-md);
}

.requirement-card {
  padding: var(--space-lg);
  border: var(--rule-hair) solid var(--color-rule);
  border-radius: var(--radius-md);
  background: var(--color-paper-2);
}

.requirement-card dl {
  display: grid;
  gap: var(--space-sm);
  margin-block-start: var(--space-md);
}

.requirement-card dl > div {
  display: grid;
  grid-template-columns: minmax(6rem, 0.7fr) minmax(0, 1.3fr);
  gap: var(--space-sm);
  padding-block-end: var(--space-xs);
  border-block-end: var(--rule-hair) solid var(--color-rule);
}

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

.requirement-card dd {
  color: var(--color-ink-2);
}

.toc {
  display: grid;
  gap: var(--space-xs);
  padding: var(--space-lg);
  border: var(--rule-hair) solid var(--color-rule);
  border-radius: var(--radius-md);
  background: var(--color-paper-2);
}

.toc a {
  color: var(--color-ink-2);
}

.guide-layout,
.article-layout {
  display: grid;
  gap: var(--space-xl);
}

.guide-content,
.article-body {
  display: grid;
  min-width: 0;
  gap: var(--space-xl);
}

.guide-section,
.article-section {
  display: grid;
  gap: var(--space-md);
  scroll-margin-top: calc(var(--banner-height) + var(--space-lg));
}

.guide-section p,
.article-section p,
.article-body > p {
  max-width: 70ch;
  color: var(--color-ink-2);
}

.guide-card a,
.article-card a {
  width: fit-content;
  color: var(--color-accent);
  font-weight: 700;
}

.article-lead {
  padding: var(--space-lg);
  border-inline-start: var(--rule-strong) solid var(--color-accent);
  background: var(--color-paper-2);
  color: var(--color-ink);
  font-size: var(--text-md);
}

.checklist {
  display: grid;
  gap: var(--space-sm);
  padding-inline-start: 0;
  list-style: none;
}

.checklist li {
  position: relative;
  padding-inline-start: var(--space-lg);
  color: var(--color-ink-2);
}

.checklist li::before {
  position: absolute;
  inset-block-start: 0.6em;
  inset-inline-start: 0;
  width: var(--space-xs);
  height: var(--space-xs);
  border: var(--rule-hair) solid var(--color-accent);
  content: "";
  transform: rotate(45deg);
}

.notice {
  display: grid;
  gap: var(--space-xs);
  padding: var(--space-lg);
  border: var(--rule-hair) solid var(--color-rule-strong);
  border-radius: var(--radius-sm);
  background: var(--color-paper-3);
  color: var(--color-ink-2);
}

.final-cta {
  display: grid;
  gap: var(--space-lg);
  padding: var(--space-2xl);
  border: var(--rule-hair) solid var(--color-rule-strong);
  border-radius: var(--radius-md);
  background: var(--color-paper-2);
}

.final-cta p {
  max-width: 60ch;
  color: var(--color-ink-2);
}

.site-footer {
  padding-block: var(--space-3xl) var(--space-2xl);
  border-block-start: var(--rule-hair) solid var(--color-rule);
  background: var(--color-paper);
}

.footer-statement {
  max-width: 28ch;
  margin-block-end: var(--space-2xl);
  color: var(--color-ink);
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 5vw, 3.25rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.05;
}

.footer-grid {
  display: grid;
  gap: var(--space-xl);
  padding-block-start: var(--space-xl);
  border-block-start: var(--rule-hair) solid var(--color-rule);
}

.footer-block {
  display: grid;
  align-content: start;
  gap: var(--space-sm);
}

.footer-block h2 {
  font-size: var(--text-md);
}

.footer-block p,
.footer-block a {
  color: var(--color-muted);
  font-size: var(--text-sm);
}

.footer-links {
  display: grid;
  gap: var(--space-xs);
}

.footer-links a {
  width: fit-content;
}

.footer-meta {
  display: grid;
  gap: var(--space-sm);
  margin-block-start: var(--space-xl);
  padding-block-start: var(--space-lg);
  border-block-start: var(--rule-hair) solid var(--color-rule);
  color: var(--color-muted);
  font-size: var(--text-sm);
}

.download-sticky {
  position: fixed;
  inset-inline: 0;
  inset-block-end: 0;
  z-index: var(--z-sticky);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
  padding: var(--space-sm) max(var(--space-md), env(safe-area-inset-right)) max(var(--space-sm), env(safe-area-inset-bottom)) max(var(--space-md), env(safe-area-inset-left));
  border-block-start: var(--rule-hair) solid var(--color-rule-strong);
  background: color-mix(in oklch, var(--color-paper) 94%, transparent);
  backdrop-filter: blur(1rem);
}

.download-sticky p {
  display: none;
  color: var(--color-ink-2);
}

.download-sticky .btn {
  flex: 1;
}

.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;
}

.reveal {
  opacity: 0;
  transform: translateY(var(--space-xs));
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
  transition: opacity var(--dur-long) var(--ease-out), transform var(--dur-long) var(--ease-out);
}

@media (min-width: 40rem) {
  .btn--primary {
    background: var(--gradient-download);
    color: var(--color-accent-ink);
  }

  .btn--primary:focus-visible {
    outline-color: var(--color-focus-on-accent);
  }

  .nav-download {
    display: inline-flex;
    min-height: 2.75rem;
    padding-inline: var(--space-md);
  }

  .feature-grid,
  .intent-grid,
  .guide-grid,
  .platform-grid,
  .article-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

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

  .info-item {
    padding-inline: var(--space-lg);
    border-inline-end: var(--rule-hair) solid var(--color-rule);
  }

  .info-item:nth-child(2n) {
    border-inline-end: 0;
  }

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

  .footer-grid {
    grid-template-columns: 1.2fr 0.8fr;
  }

  .footer-meta {
    grid-template-columns: 1fr auto;
  }

  .download-sticky p {
    display: block;
  }

  .download-sticky .btn {
    flex: 0 0 auto;
  }
}

@media (min-width: 48rem) {
  .nav-pill {
    width: max-content;
    max-width: 43rem;
  }

  .nav-toggle {
    display: none;
  }

  .nav-links {
    position: static;
    display: flex;
    align-items: center;
    padding: 0;
    border: 0;
    background: transparent;
    box-shadow: none;
  }

  .nav-links a {
    display: inline-flex;
    align-items: center;
  }

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

  .info-item:nth-child(2n) {
    border-inline-end: var(--rule-hair) solid var(--color-rule);
  }

  .info-item:nth-child(3n) {
    border-inline-end: 0;
  }

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

  .footer-grid {
    grid-template-columns: 1.2fr 0.75fr 1.25fr;
  }
}

@media (min-width: 60rem) {
  .section-head {
    grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
    align-items: end;
  }

  .hero {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: var(--space-2xl);
  }

  .story-layout {
    grid-template-columns: minmax(0, 1.45fr) minmax(15rem, 0.55fr);
    gap: var(--space-2xl);
  }

  .feature-grid {
    grid-template-columns: repeat(12, minmax(0, 1fr));
  }

  .feature-card:nth-child(1),
  .feature-card:nth-child(4) {
    grid-column: span 7;
  }

  .feature-card:nth-child(2),
  .feature-card:nth-child(3) {
    grid-column: span 5;
  }

  .intent-grid {
    grid-template-columns: 1.1fr 0.9fr 1fr;
  }

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

  .guide-layout,
  .article-layout {
    grid-template-columns: minmax(15rem, 0.34fr) minmax(0, 1fr);
    align-items: start;
  }

  .guide-layout .toc,
  .article-layout .toc {
    position: sticky;
    inset-block-start: calc(var(--banner-height) + var(--space-lg));
  }

  .final-cta {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
  }
}

@media (min-width: 90rem) {
  .hero {
    gap: var(--space-3xl);
  }
}

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

  .btn--primary::after,
  .btn[data-state="loading"]::before {
    animation: none;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }

  .lightbox,
  .btn:active,
  .tab:active,
  .icon-button:active,
  .nav-toggle:active {
    transform: none;
  }

  .btn:hover,
  .feature-card:hover,
  .intent-card:hover,
  .guide-card:hover,
  .platform-card:hover,
  .gallery-card:hover img {
    transform: none;
  }

  .reveal.is-visible,
  .lightbox,
  .accordion-panel,
  .gallery-card img,
  .feature-card,
  .intent-card,
  .guide-card,
  .platform-card,
  .btn,
  .tab {
    transition-duration: 150ms;
  }
}