@import url("../../tokens.css");

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

html,
body {
  margin: 0;
  overflow-x: clip;
}

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

body {
  min-width: 20rem;
  padding-bottom: calc(4.75rem + env(safe-area-inset-bottom));
  color: var(--color-ink);
  background: var(--color-paper);
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.72;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

body.is-locked {
  overflow: clip;
}

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

img {
  height: auto;
}

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

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

a {
  color: var(--color-sea-deep);
  text-decoration-thickness: var(--rule-hair);
  text-underline-offset: 0.2em;
}

h1,
h2,
h3,
h4,
p,
figure,
blockquote,
dl,
dd,
ol,
ul {
  margin: 0;
}

h1,
h2,
h3,
h4 {
  min-width: 0;
  overflow-wrap: anywhere;
  font-family: var(--font-display);
  font-style: normal;
  line-height: 1.12;
  letter-spacing: -0.025em;
}

h1 {
  font-size: var(--text-display-s);
  font-weight: 800;
}

h2 {
  font-size: clamp(2rem, 4vw, 3.5rem);
  font-weight: 800;
}

h3 {
  font-size: var(--text-xl);
  font-weight: 700;
}

p + p {
  margin-top: var(--space-md);
}

[hidden] {
  display: none !important;
}

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

::selection {
  color: var(--color-ink);
  background: var(--color-accent-soft);
}

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

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

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

.content-shell {
  max-width: var(--content-max);
}

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

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

.section--paper-2 {
  color: var(--color-ink);
  background: var(--color-paper-2);
}

.section--ink {
  color: var(--color-light);
  background: var(--color-ink);
}

.section-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-md);
  margin-bottom: var(--space-2xl);
}

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

.section--ink .section-head p {
  color: var(--color-paper-3);
}

.kicker {
  max-width: max-content;
  padding-bottom: var(--space-2xs);
  border-bottom: var(--rule-strong) solid var(--color-gold);
  color: var(--color-gold-deep);
  font-size: var(--text-sm);
  font-weight: 700;
  letter-spacing: 0.08em;
}

.nav-shell {
  position: fixed;
  inset: 0 0 auto;
  z-index: var(--z-sticky);
  transform: translateY(0);
  transition: transform var(--dur-long) var(--ease-out);
}

.nav-shell.is-compact {
  transform: translateY(calc(var(--banner-height) * -1));
}

.nav-shell.is-dismissed {
  transform: none;
}

.nav-banner {
  position: relative;
  display: flex;
  min-height: var(--banner-height);
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding-inline: calc(var(--page-gutter) + var(--space-xl));
  color: var(--color-ink);
  background: var(--color-gold);
  font-size: var(--text-sm);
  font-weight: 700;
  text-align: center;
}

.nav-banner a {
  color: var(--color-ink);
  white-space: nowrap;
}

.banner-close {
  position: absolute;
  inset-inline-end: var(--space-sm);
  display: grid;
  width: 2.25rem;
  height: 2.25rem;
  place-items: center;
  border: 0;
  color: var(--color-ink);
  background: var(--color-transparent);
  cursor: pointer;
}

.nav-bar {
  border-bottom: var(--rule-hair) solid var(--color-rule-2);
  color: var(--color-ink);
  background: var(--color-paper);
  box-shadow: var(--shadow-whisper);
}

.nav-inner {
  display: grid;
  min-height: var(--nav-height);
  grid-template-columns: minmax(0, 1fr) auto auto;
  align-items: center;
  gap: var(--space-sm);
}

.brand {
  min-width: 0;
  overflow: hidden;
  color: var(--color-ink);
  font-family: var(--font-display);
  font-size: var(--text-md);
  font-weight: 800;
  text-decoration: none;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.nav-links {
  display: none;
  gap: var(--space-lg);
}

.nav-links a,
.mobile-menu a {
  color: var(--color-ink-2);
  font-weight: 700;
  text-decoration: none;
  white-space: nowrap;
}

.nav-links a[aria-current="page"] {
  color: var(--color-accent-hover);
}

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

.menu-toggle span,
.menu-toggle::before,
.menu-toggle::after {
  width: 1.125rem;
  height: var(--rule-strong);
  background: currentColor;
  content: "";
}

.mobile-menu {
  display: none;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-xs);
  padding: var(--space-md) var(--page-gutter) var(--space-lg);
  border-bottom: var(--rule-hair) solid var(--color-rule);
  color: var(--color-ink);
  background: var(--color-paper);
}

.mobile-menu.is-open {
  display: grid;
}

.mobile-menu a {
  min-height: 2.75rem;
  padding: var(--space-sm);
  border-bottom: var(--rule-hair) solid var(--color-rule-2);
}

.btn {
  position: relative;
  display: inline-flex;
  min-height: 2.875rem;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  padding: var(--space-sm) var(--space-lg);
  overflow: clip;
  border: var(--rule-hair) solid var(--color-ink);
  border-radius: var(--radius-sm);
  color: var(--color-paper);
  background: var(--color-ink);
  font-weight: 800;
  line-height: 1;
  text-decoration: none;
  white-space: nowrap;
  cursor: pointer;
  transition: transform var(--dur-micro) var(--ease-out), background-color var(--dur-short) var(--ease-out), color var(--dur-short) var(--ease-out);
}

.btn--small {
  min-height: 2.75rem;
  padding-inline: var(--space-md);
  font-size: var(--text-sm);
}

.btn--primary {
  border-color: var(--color-accent);
  box-shadow: inset 0 0 0 var(--rule-hair) var(--color-accent);
}

.btn--primary::after {
  position: absolute;
  inset: -40% auto -40% -35%;
  width: 22%;
  background: var(--color-light);
  content: "";
  opacity: 0.16;
  transform: skewX(-18deg) translateX(-240%);
  animation: cta-shimmer 3.6s var(--ease-in-out) infinite;
}

.btn--secondary {
  border-color: var(--color-paper-3);
  color: var(--color-ink);
  background: var(--color-paper);
}

.btn--ghost {
  border-color: var(--color-rule);
  color: var(--color-ink);
  background: var(--color-transparent);
}

.btn[aria-disabled="true"],
.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

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

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

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

@keyframes cta-shimmer {
  0%, 60% { transform: skewX(-18deg) translateX(-240%); }
  90%, 100% { transform: skewX(-18deg) translateX(760%); }
}

@keyframes spin {
  to { transform: rotate(1turn); }
}

.hero {
  position: relative;
  display: grid;
  min-height: clamp(38rem, 78dvh, 52rem);
  align-items: end;
  padding-block: var(--space-xl) var(--space-2xl);
  isolation: isolate;
  color: var(--color-light);
  background: var(--color-ink);
}

.hero-media,
.hero-media::after {
  position: absolute;
  inset: 0;
}

.hero-media {
  z-index: -2;
  overflow: clip;
}

.hero-media::after {
  background: var(--color-overlay-soft);
  content: "";
}

.hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  transform: scale(1.035);
  animation: hero-settle 900ms var(--ease-out) both;
}

@keyframes hero-settle {
  from { opacity: 0.8; transform: scale(1.05); }
  to { opacity: 1; transform: scale(1.035); }
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-lg);
  align-items: end;
  margin-top: calc(var(--banner-height) + var(--nav-height));
}

.hero-copy {
  max-width: 52rem;
}

.hero-tags,
.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
  padding: 0;
  list-style: none;
}

.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);
  color: var(--color-ink-2);
  background: var(--color-paper);
  font-size: var(--text-sm);
  font-weight: 700;
  white-space: nowrap;
}

.hero .tag {
  border-color: var(--color-paper-3);
  color: var(--color-light);
  background: var(--color-overlay);
}

.hero h1 {
  margin-top: var(--space-md);
  max-width: 18ch;
  color: var(--color-light);
  text-shadow: 0 2px 14px var(--color-overlay);
}

.hero h1 small {
  display: block;
  margin-top: var(--space-xs);
  font-family: var(--font-body);
  font-size: clamp(1rem, 2vw, 1.4rem);
  font-weight: 700;
  letter-spacing: 0;
}

.dialogue-box {
  position: relative;
  padding: var(--space-lg);
  border: var(--rule-hair) solid var(--color-gold);
  border-radius: var(--radius-md);
  color: var(--color-light);
  background: var(--color-overlay-strong);
  box-shadow: var(--shadow-raised);
}

.speaker {
  color: var(--color-gold);
  font-weight: 800;
}

.dialogue-box p {
  max-width: 58ch;
  margin-top: var(--space-xs);
  font-size: var(--text-md);
}

.choice-row,
.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-top: var(--space-lg);
}

.hero-specs {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--rule-hair);
  overflow: clip;
  border: var(--rule-hair) solid var(--color-gold);
  border-radius: var(--radius-md);
  background: var(--color-gold);
}

.hero-spec {
  min-width: 0;
  padding: var(--space-md);
  color: var(--color-light);
  background: var(--color-overlay-strong);
}

.hero-spec dt {
  color: var(--color-paper-3);
  font-size: var(--text-sm);
}

.hero-spec dd {
  margin-top: var(--space-2xs);
  font-weight: 800;
  font-variant-numeric: tabular-nums;
}

.info-strip {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-bottom: var(--rule-hair) solid var(--color-rule);
}

.info-item {
  min-width: 0;
  padding: var(--space-lg) var(--page-gutter);
  border-inline-end: var(--rule-hair) solid var(--color-rule-2);
  border-bottom: var(--rule-hair) solid var(--color-rule-2);
}

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

.info-item dd {
  margin-top: var(--space-2xs);
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  overflow-wrap: anywhere;
}

.story-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-xl);
  align-items: start;
}

.story-copy {
  max-width: 68ch;
  font-size: var(--text-md);
}

.story-figure {
  overflow: clip;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-raised);
}

.story-figure img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.story-figure figcaption,
.gallery-card figcaption {
  padding: var(--space-sm) var(--space-md);
  color: var(--color-muted);
  background: var(--color-paper);
  font-size: var(--text-sm);
}

.workflow {
  padding: 0;
  list-style: none;
}

.workflow-step {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-lg);
  padding-block: var(--space-xl);
  border-top: var(--rule-strong) solid var(--color-ink);
}

.stage-no {
  color: var(--color-accent-hover);
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 800;
  font-variant-numeric: tabular-nums;
}

.workflow-step p {
  max-width: 58ch;
  margin-top: var(--space-sm);
  color: var(--color-muted);
}

.workflow-step img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: var(--radius-sm);
}

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

.feature-item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: var(--space-md);
  padding-block: var(--space-lg);
  border-bottom: var(--rule-hair) solid var(--color-rule);
}

.feature-mark {
  display: grid;
  width: 2.5rem;
  height: 2.5rem;
  place-items: center;
  border: var(--rule-hair) solid var(--color-gold-deep);
  border-radius: var(--radius-pill);
  color: var(--color-gold-deep);
  font-weight: 800;
}

.feature-item p {
  margin-top: var(--space-xs);
  color: var(--color-muted);
}

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

.media-main {
  position: relative;
  display: block;
  width: 100%;
  padding: 0;
  overflow: clip;
  border: 0;
  border-radius: var(--radius-sm);
  background: var(--color-ink);
  cursor: zoom-in;
}

.media-main img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.media-main span {
  position: absolute;
  inset: auto var(--space-md) var(--space-md) auto;
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-sm);
  color: var(--color-light);
  background: var(--color-overlay);
  font-weight: 700;
}

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

.media-thumb {
  padding: 0;
  overflow: clip;
  border: var(--rule-strong) solid var(--color-transparent);
  border-radius: var(--radius-xs);
  background: var(--color-paper-2);
  cursor: pointer;
}

.media-thumb[aria-current="true"] {
  border-color: var(--color-accent);
}

.media-thumb img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

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

.gallery-card {
  min-width: 0;
  overflow: clip;
  border-bottom: var(--rule-hair) solid var(--color-rule);
  background: var(--color-paper);
}

.gallery-card button {
  width: 100%;
  padding: 0;
  border: 0;
  background: var(--color-paper-2);
  cursor: zoom-in;
}

.gallery-card img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  transition: transform var(--dur-short) var(--ease-out), opacity var(--dur-short) var(--ease-out);
}

.gallery-card[data-hidden="true"] {
  display: none;
}

.tabs {
  display: flex;
  gap: var(--space-xs);
  margin-bottom: var(--space-xl);
  overflow-x: auto;
  padding-bottom: var(--space-xs);
}

.tab {
  min-height: 2.75rem;
  padding-inline: var(--space-md);
  border: var(--rule-hair) solid var(--color-rule);
  border-radius: var(--radius-pill);
  color: var(--color-ink);
  background: var(--color-paper);
  font-weight: 700;
  white-space: nowrap;
  cursor: pointer;
}

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

.timeline {
  border-top: var(--rule-strong) solid var(--color-gold);
}

.timeline article {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-md);
  padding-block: var(--space-lg);
  border-bottom: var(--rule-hair) solid var(--color-rule);
}

.timeline time {
  color: var(--color-muted);
  font-variant-numeric: tabular-nums;
}

.timeline ul,
.guide-article ul,
.guide-article ol {
  padding-inline-start: var(--space-lg);
}

.rating-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-xl);
  padding: var(--space-xl);
  border: var(--rule-hair) solid var(--color-gold-deep);
}

.rating-number {
  font-family: var(--font-display);
  font-size: var(--text-4xl);
  font-weight: 800;
  font-variant-numeric: tabular-nums;
}

.audience-grid,
.platform-grid,
.guide-grid,
.requirement-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-lg);
}

.audience-card,
.platform-card,
.guide-card,
.requirement-card {
  min-width: 0;
  padding: var(--space-lg);
  border-top: var(--rule-strong) solid var(--color-ink);
  background: var(--color-paper);
}

.platform-card--recommended {
  border-top-color: var(--color-accent);
}

.audience-card p,
.platform-card p,
.guide-card p,
.requirement-card p {
  margin-top: var(--space-sm);
  color: var(--color-muted);
}

.guide-card a {
  display: inline-flex;
  min-height: 2.75rem;
  align-items: center;
  margin-top: var(--space-md);
  font-weight: 800;
  white-space: nowrap;
}

.spec-list {
  margin-top: var(--space-md);
  border-top: var(--rule-hair) solid var(--color-rule);
}

.spec-list div {
  display: grid;
  grid-template-columns: minmax(6rem, 0.35fr) minmax(0, 1fr);
  gap: var(--space-md);
  padding-block: var(--space-sm);
  border-bottom: var(--rule-hair) solid var(--color-rule-2);
}

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

.spec-list dd {
  font-weight: 700;
  overflow-wrap: anywhere;
}

.accordion {
  border-top: var(--rule-strong) solid var(--color-ink);
}

.accordion details {
  border-bottom: var(--rule-hair) solid var(--color-rule);
}

.accordion summary {
  position: relative;
  min-height: 3.75rem;
  padding: var(--space-md) calc(var(--space-xl) + var(--space-sm)) var(--space-md) 0;
  font-weight: 800;
  list-style: none;
  cursor: pointer;
}

.accordion summary::-webkit-details-marker {
  display: none;
}

.accordion summary::after {
  position: absolute;
  inset: 50% 0 auto auto;
  width: 1.5rem;
  content: "+";
  color: var(--color-accent-hover);
  font-size: var(--text-lg);
  text-align: center;
  transform: translateY(-50%);
}

.accordion details[open] summary::after {
  content: "−";
}

.accordion .answer {
  max-width: 68ch;
  padding: 0 var(--space-xl) var(--space-lg) 0;
  color: var(--color-muted);
}

.final-cta {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-xl);
  align-items: center;
}

.final-cta p {
  max-width: 60ch;
  margin-top: var(--space-md);
  color: var(--color-paper-3);
}

.notice-box {
  padding: var(--space-lg);
  border: var(--rule-hair) solid var(--color-gold-deep);
  color: var(--color-ink);
  background: var(--color-paper-2);
}

.notice-box strong {
  display: block;
  margin-bottom: var(--space-xs);
}

.install-steps {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-lg);
  padding: 0;
  list-style: none;
  counter-reset: install;
}

.install-steps li {
  position: relative;
  padding: var(--space-lg);
  border-top: var(--rule-strong) solid var(--color-sea-deep);
  counter-increment: install;
}

.install-steps li::before {
  display: block;
  margin-bottom: var(--space-xs);
  color: var(--color-sea-deep);
  content: "0" counter(install);
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 800;
}

.guide-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-xl);
  align-items: start;
}

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

.toc ol {
  display: grid;
  gap: var(--space-xs);
  margin-top: var(--space-md);
  padding-inline-start: var(--space-lg);
}

.toc a {
  font-weight: 700;
}

.guide-article {
  min-width: 0;
}

.guide-article section {
  padding-block: var(--space-xl);
  border-top: var(--rule-strong) solid var(--color-ink);
}

.guide-article h2 {
  font-size: var(--text-2xl);
}

.guide-article h3 {
  margin-top: var(--space-lg);
  font-size: var(--text-lg);
}

.guide-article p,
.guide-article li {
  max-width: 72ch;
}

.guide-article p,
.guide-article ul,
.guide-article ol {
  margin-top: var(--space-md);
}

.table-wrap {
  margin-top: var(--space-lg);
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-variant-numeric: tabular-nums;
}

th,
td {
  padding: var(--space-sm);
  border-bottom: var(--rule-hair) solid var(--color-rule);
  text-align: start;
  vertical-align: top;
}

th {
  color: var(--color-muted);
  font-weight: 700;
}

.lightbox {
  position: fixed;
  inset: 0;
  width: min(94%, 78rem);
  height: fit-content;
  max-height: 90dvh;
  margin: auto;
  padding: 0;
  overflow: clip;
  border: var(--rule-hair) solid var(--color-rule);
  border-radius: var(--radius-sm);
  color: var(--color-light);
  background: var(--color-ink);
  box-shadow: var(--shadow-modal);
}

.lightbox::backdrop {
  background: var(--color-overlay-strong);
}

.lightbox img {
  width: 100%;
  max-height: 76dvh;
  object-fit: contain;
  background: var(--color-ink);
}

.lightbox-bar {
  display: flex;
  min-height: 3.5rem;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
}

.lightbox-controls {
  display: flex;
  gap: var(--space-xs);
}

.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-sm);
  color: var(--color-light);
  background: var(--color-transparent);
  cursor: pointer;
}

.sticky-cta {
  position: fixed;
  inset: auto 0 0;
  z-index: var(--z-sticky);
  display: flex;
  min-height: 4.75rem;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  padding: var(--space-sm) max(var(--page-gutter), env(safe-area-inset-right)) calc(var(--space-sm) + env(safe-area-inset-bottom)) max(var(--page-gutter), env(safe-area-inset-left));
  border-top: var(--rule-hair) solid var(--color-gold);
  color: var(--color-light);
  background: var(--color-overlay-strong);
}

.sticky-copy {
  display: none;
}

.sticky-cta .btn {
  min-width: 10rem;
}

.back-top {
  position: fixed;
  inset: auto var(--space-md) calc(5.5rem + env(safe-area-inset-bottom)) auto;
  z-index: var(--z-raised);
  display: grid;
  width: 2.75rem;
  height: 2.75rem;
  place-items: center;
  border: var(--rule-hair) solid var(--color-rule);
  border-radius: var(--radius-pill);
  color: var(--color-ink);
  background: var(--color-paper);
  box-shadow: var(--shadow-whisper);
  opacity: 0;
  pointer-events: none;
  text-decoration: none;
  transform: translateY(var(--space-sm));
  transition: opacity var(--dur-short) var(--ease-out), transform var(--dur-short) var(--ease-out);
}

.back-top.is-visible {
  opacity: 1;
  pointer-events: auto;
  transform: none;
}

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

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

.footer-brand {
  color: var(--color-light);
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 800;
}

.footer-colophon {
  max-width: 70ch;
  font-size: var(--text-sm);
}

.footer-links,
.related-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs) var(--space-md);
  padding: 0;
  list-style: none;
}

.footer-links a,
.related-links a {
  color: var(--color-paper-3);
  white-space: nowrap;
}

.footer-meta {
  padding-top: var(--space-lg);
  border-top: var(--rule-hair) solid var(--color-ink-2);
  font-size: var(--text-sm);
}

@media (hover: hover) and (pointer: fine) {
  .btn:hover {
    background: var(--color-ink-2);
  }

  .btn--secondary:hover,
  .btn--ghost:hover {
    color: var(--color-ink);
    background: var(--color-paper-2);
  }

  .nav-links a:hover,
  .mobile-menu a:hover {
    color: var(--color-accent-hover);
  }

  .gallery-card button:hover img,
  .gallery-card button:focus-visible img {
    transform: scale(1.02);
  }

  .media-thumb:hover {
    border-color: var(--color-gold-deep);
  }

  .tab:hover {
    border-color: var(--color-accent);
  }

  .banner-close:hover,
  .menu-toggle:hover,
  .icon-button:hover,
  .media-thumb:hover,
  .gallery-card button:hover,
  .back-top:hover,
  .accordion summary:hover {
    color: var(--color-accent-hover);
  }
}

.btn:active,
.tab:active,
.banner-close:active,
.menu-toggle:active,
.gallery-card button:active,
.icon-button:active,
.media-thumb:active,
.back-top:active,
.accordion summary:active {
  transform: translateY(var(--rule-hair));
}

.tab:disabled,
.banner-close:disabled,
.menu-toggle:disabled,
.gallery-card button:disabled,
.icon-button:disabled,
.media-thumb:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.tab[data-state="loading"],
.banner-close[data-state="loading"],
.menu-toggle[data-state="loading"],
.gallery-card button[data-state="loading"],
.icon-button[data-state="loading"],
.media-thumb[data-state="loading"] {
  cursor: progress;
}

.tab[data-state="error"],
.banner-close[data-state="error"],
.menu-toggle[data-state="error"],
.gallery-card button[data-state="error"],
.icon-button[data-state="error"],
.media-thumb[data-state="error"] {
  border-color: var(--color-error);
}

.tab[data-state="success"],
.banner-close[data-state="success"],
.menu-toggle[data-state="success"],
.gallery-card button[data-state="success"],
.icon-button[data-state="success"],
.media-thumb[data-state="success"] {
  border-color: var(--color-success);
}

@media (min-width: 40rem) {
  .info-strip {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

  .thumb-grid {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }

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

  .sticky-copy {
    display: block;
  }
}

@media (min-width: 60rem) {
  body {
    padding-bottom: 0;
  }

  .nav-links {
    display: flex;
  }

  .menu-toggle,
  .mobile-menu {
    display: none !important;
  }

  .hero-grid {
    grid-template-columns: minmax(0, 1.4fr) minmax(20rem, 0.6fr);
    margin-top: 0;
  }

  .story-layout {
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  }

  .workflow-step {
    grid-template-columns: minmax(7rem, 0.2fr) minmax(0, 0.8fr) minmax(20rem, 1fr);
    align-items: center;
  }

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

  .feature-item:nth-child(odd) {
    padding-inline-end: var(--space-xl);
  }

  .feature-item:nth-child(even) {
    padding-inline-start: var(--space-xl);
    border-inline-start: var(--rule-hair) solid var(--color-rule);
  }

  .media-stage {
    grid-template-columns: minmax(0, 1.55fr) minmax(14rem, 0.45fr);
  }

  .thumb-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    align-content: start;
  }

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

  .timeline article {
    grid-template-columns: minmax(10rem, 0.25fr) minmax(0, 0.75fr);
  }

  .rating-panel {
    grid-template-columns: minmax(14rem, 0.3fr) minmax(0, 0.7fr);
    align-items: center;
  }

  .audience-grid {
    grid-template-columns: 1.2fr 0.8fr 1fr;
  }

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

  .guide-layout {
    grid-template-columns: minmax(14rem, 0.25fr) minmax(0, 0.75fr);
  }

  .toc {
    position: sticky;
    top: calc(var(--nav-height) + var(--space-lg));
  }

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

  .footer-grid {
    grid-template-columns: minmax(18rem, 0.35fr) minmax(0, 0.65fr);
  }

  .sticky-cta {
    inset: auto var(--space-lg) var(--space-lg) auto;
    width: min(36rem, calc(100% - (var(--space-lg) * 2)));
    border: var(--rule-hair) solid var(--color-gold);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-modal);
  }
}

@media (min-width: 90rem) {
  .gallery-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

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

  *,
  *::before,
  *::after {
    animation-duration: 150ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 150ms !important;
  }

  .hero-media img {
    transform: none;
  }

  .btn--primary::after {
    display: none;
  }
}