/* Hallmark · macrostructure: Map / Diagram · genre: editorial · H6 photographic fold
 * theme: custom · vibe: "sakura case ledger, summer ryokan reception" · paper: oklch(99.2% 0.004 350) · accent: oklch(76% 0.175 70)
 * display: Noto Serif SC · body: Noto Sans SC · axes: light / roman-serif / chromatic-dusty-pink
 * enrichment: E8 reviewed source photography · nav: N11 Mega menu · footer: Ft1 Mast-headed
 * contrast: pass (40–41) · slop: pass (42–45) · honest: pass (46) · chrome: pass (47) · tokens: pass (48)
 * responsive: pass (34, 49) · mobile: pass (50–57) · icons: pass (30)
 * Hallmark · pre-emit critique: P5 H4 E5 S5 R4 V5
 */
@import url("../../tokens.css");

*,
*::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 {
  margin: 0;
  min-width: 20rem;
  background: var(--color-paper);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.65;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  padding-bottom: calc(4.75rem + env(safe-area-inset-bottom));
}

body.is-locked {
  overflow: clip;
}

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

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

a {
  color: inherit;
  text-decoration-thickness: var(--rule-thin);
  text-underline-offset: var(--space-2xs);
}

button {
  color: inherit;
  font: inherit;
}

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

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

h1,
h2,
h3 {
  min-width: 0;
  overflow-wrap: anywhere;
  font-family: var(--font-display);
  font-style: normal;
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.15;
}

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

h2 {
  font-size: clamp(var(--text-2xl), 5vw, var(--text-4xl));
}

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

p,
li {
  max-width: 68ch;
}

table {
  border-collapse: collapse;
  width: 100%;
}

.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-dark);
  color: var(--color-on-dark);
  transform: translateY(-160%);
}

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

:focus-visible {
  outline: var(--rule-strong) solid var(--color-focus);
  outline-offset: var(--space-2xs);
  box-shadow: 0 0 0 var(--space-2xs) var(--color-paper);
}

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

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

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

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

.section--dark {
  background: var(--color-dark);
  color: var(--color-on-dark);
}

.section__head {
  display: grid;
  gap: var(--space-md);
  margin-block-end: var(--space-2xl);
}

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

.section--dark .section__head p,
.section--dark .muted {
  color: var(--color-on-dark);
}

.section__head--sticky {
  position: sticky;
  inset-block-start: var(--banner-height);
  z-index: var(--z-sticky);
  padding-block: var(--space-md);
  background: var(--color-paper);
  border-block-end: var(--rule-thin) solid var(--color-rule);
}

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

.tnum {
  font-variant-numeric: tabular-nums;
}

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

.icon {
  width: var(--space-lg);
  height: var(--space-lg);
  stroke: currentColor;
  stroke-width: 1.8;
  fill: none;
}

.promo {
  position: relative;
  z-index: var(--z-sticky-nav);
  min-height: 2.5rem;
  display: grid;
  place-items: center;
  padding: var(--space-xs) var(--space-2xl) var(--space-xs) var(--space-md);
  background: var(--color-dark);
  color: var(--color-on-dark);
  font-size: var(--text-sm);
  text-align: center;
}

.promo__close {
  position: absolute;
  inset-inline-end: var(--space-sm);
  inset-block-start: 50%;
  width: 2.75rem;
  height: 2.75rem;
  display: grid;
  place-items: center;
  border: 0;
  background: var(--color-transparent);
  color: var(--color-on-dark);
  cursor: pointer;
  transform: translateY(-50%);
}

.site-header {
  position: sticky;
  inset-block-start: 0;
  z-index: var(--z-sticky-nav);
  background: var(--color-paper);
  color: var(--color-ink);
  border-block-end: var(--rule-thin) solid var(--color-rule);
}

.site-header__inner {
  min-height: var(--nav-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  min-height: 2.75rem;
  text-decoration: none;
  white-space: nowrap;
  font-family: var(--font-display);
  font-weight: 700;
}

.brand__mark {
  width: 2rem;
  height: 2rem;
  display: grid;
  place-items: center;
  background: var(--color-pink);
  border: var(--rule-thin) solid var(--color-pink-deep);
  border-radius: var(--radius-xs);
  transform: rotate(-4deg);
}

.desktop-nav {
  display: none;
  align-items: center;
  gap: var(--space-xs);
}

.nav-link,
.mega-trigger {
  min-height: 2.75rem;
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding-inline: var(--space-sm);
  border: 0;
  background: var(--color-transparent);
  color: var(--color-ink-2);
  text-decoration: none;
  cursor: pointer;
  white-space: nowrap;
}

.nav-link[aria-current="page"],
.mega-trigger[aria-expanded="true"] {
  color: var(--color-blue-deep);
  text-decoration: underline;
  text-decoration-color: var(--color-blue);
  text-decoration-thickness: var(--rule-strong);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.menu-toggle {
  width: 3.5rem;
  height: 2.75rem;
  display: grid;
  place-items: center;
  border: var(--rule-thin) solid var(--color-rule);
  background: var(--color-paper);
  cursor: pointer;
  white-space: nowrap;
}

.nav-actions .btn {
  display: none;
}

.mega-panel {
  position: absolute;
  inset-inline: 0;
  inset-block-start: 100%;
  z-index: var(--z-dropdown);
  padding-block: var(--space-lg);
  background: var(--color-paper);
  color: var(--color-ink);
  border-block-end: var(--rule-thin) solid var(--color-rule);
  box-shadow: 0 var(--space-sm) var(--space-xl) var(--color-shadow);
  opacity: 0;
  visibility: hidden;
  transform: translateY(calc(var(--space-xs) * -1));
  transition: opacity var(--dur-short) var(--ease-out), transform var(--dur-short) var(--ease-out), visibility var(--dur-short) var(--ease-out);
}

.mega-panel.is-open {
  opacity: 1;
  visibility: visible;
  transform: none;
}

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

.mega-link {
  min-height: 4.75rem;
  display: grid;
  gap: var(--space-2xs);
  align-content: center;
  padding: var(--space-md);
  border-block-end: var(--rule-thin) solid var(--color-rule-2);
  text-decoration: none;
}

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

.nav-scrim {
  position: fixed;
  inset: 0;
  z-index: calc(var(--z-dropdown) - 1);
  background: var(--color-overlay-soft);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--dur-short) var(--ease-in), visibility var(--dur-short) var(--ease-in);
}

.nav-scrim.is-active {
  opacity: 1;
  visibility: visible;
}

.mobile-drawer {
  position: fixed;
  inset-block: 0;
  inset-inline-end: 0;
  z-index: var(--z-modal);
  width: min(88%, 23rem);
  padding: var(--space-lg);
  background: var(--color-paper);
  color: var(--color-ink);
  box-shadow: calc(var(--space-lg) * -1) 0 var(--space-2xl) var(--color-shadow);
  transform: translateX(110%);
  transition: transform var(--dur-long) var(--ease-out);
}

.mobile-drawer.is-open {
  transform: none;
}

.mobile-drawer__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-block-end: var(--space-lg);
}

.mobile-drawer__close {
  width: 2.75rem;
  height: 2.75rem;
  border: var(--rule-thin) solid var(--color-rule);
  background: var(--color-paper);
  cursor: pointer;
}

.mobile-drawer nav {
  display: grid;
}

.mobile-drawer a {
  min-height: 3.25rem;
  display: flex;
  align-items: center;
  border-block-end: var(--rule-thin) solid var(--color-rule-2);
  text-decoration: none;
  white-space: nowrap;
}

.btn {
  position: relative;
  min-height: 2.875rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  padding: var(--space-sm) var(--space-lg);
  border: var(--rule-thin) solid var(--color-ink);
  border-radius: var(--radius-sm);
  background: var(--color-paper);
  color: var(--color-ink);
  font-weight: 700;
  line-height: 1;
  text-decoration: none;
  white-space: nowrap;
  cursor: pointer;
  overflow: clip;
  transition: background-color var(--dur-short) var(--ease-out), color var(--dur-short) var(--ease-out), transform var(--dur-micro) var(--ease-out), opacity var(--dur-short) var(--ease-out);
}

.btn--primary {
  border-color: var(--color-accent-deep);
  background: var(--color-accent);
  color: var(--color-accent-ink);
}

.btn--primary::after {
  content: "";
  position: absolute;
  inset-block: 0;
  width: 28%;
  inset-inline-start: -40%;
  background: var(--color-paper-2);
  opacity: 0.52;
  transform: translateX(0) skewX(-18deg);
  pointer-events: none;
}

.btn--dark {
  border-color: var(--color-on-dark);
  background: var(--color-dark);
  color: var(--color-on-dark);
}

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

.btn[aria-disabled="true"],
.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

.btn[aria-busy="true"]::before {
  content: "";
  width: var(--space-md);
  height: var(--space-md);
  border: var(--rule-strong) solid var(--color-accent-ink);
  border-block-start-color: var(--color-transparent);
  border-radius: 50%;
  animation: spin var(--dur-long) linear infinite;
}

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

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

.hero {
  position: relative;
  min-height: clamp(34rem, 76dvh, 48rem);
  display: grid;
  align-items: end;
  isolation: isolate;
  background: var(--color-dark);
  color: var(--color-on-dark);
}

.hero__media,
.hero__media::after {
  position: absolute;
  inset: 0;
}

.hero__media {
  z-index: -2;
}

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

.hero__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 56% center;
}

.hero__inner {
  width: 100%;
  display: grid;
  gap: var(--space-xl);
  padding-block: var(--space-2xl) var(--space-3xl);
}

.hero__copy {
  max-width: 47rem;
  display: grid;
  gap: var(--space-lg);
}

.hero__title {
  max-width: 15ch;
  font-size: var(--text-display-s);
  line-height: 1.06;
  text-shadow: 0 var(--space-2xs) var(--space-md) var(--color-overlay);
}

.hero__jp {
  max-width: 48ch;
  font-size: var(--text-sm);
  letter-spacing: 0.04em;
}

.hero__lede {
  max-width: 42rem;
  font-size: var(--text-md);
  line-height: 1.55;
}

.tag-row,
.hero__stats,
.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.tag {
  display: inline-flex;
  align-items: center;
  min-height: 2rem;
  padding-inline: var(--space-sm);
  border: var(--rule-thin) solid currentColor;
  background: var(--color-dark-2);
  color: var(--color-on-dark);
  font-size: var(--text-sm);
  white-space: nowrap;
}

.hero__stat {
  min-width: 8.5rem;
  display: grid;
  gap: var(--space-2xs);
  padding-block-start: var(--space-sm);
  border-block-start: var(--rule-thin) solid var(--color-on-dark);
}

.hero__stat dt {
  color: var(--color-on-dark);
  font-size: var(--text-sm);
}

.hero__stat dd {
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

.petal {
  position: absolute;
  z-index: -1;
  width: var(--space-sm);
  height: var(--space-xs);
  background: var(--color-pink);
  border-radius: 70% 30% 70% 30%;
  opacity: 0;
  animation: petal-drift 8s var(--ease-out) forwards;
  pointer-events: none;
}

.petal--one {
  inset-block-start: 22%;
  inset-inline-end: 8%;
}

.petal--two {
  inset-block-start: 34%;
  inset-inline-end: 17%;
  animation-delay: 1.2s;
}

.petal--three {
  inset-block-start: 15%;
  inset-inline-end: 28%;
  animation-delay: 2.4s;
}

.info-strip {
  position: relative;
  z-index: var(--z-raised);
  margin-block-start: calc(var(--space-xl) * -1);
}

.info-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  background: var(--color-paper);
  border: var(--rule-thin) solid var(--color-rule);
  box-shadow: 0 var(--space-xs) var(--space-xl) var(--color-shadow);
}

.info-item {
  min-width: 0;
  padding: var(--space-lg);
  border-block-end: var(--rule-thin) solid var(--color-rule-2);
}

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

.info-item dd {
  margin-block-start: var(--space-2xs);
  font-weight: 700;
  overflow-wrap: anywhere;
}

.story-layout {
  display: grid;
  gap: var(--space-2xl);
}

.story-copy {
  display: grid;
  gap: var(--space-lg);
  font-size: var(--text-md);
  line-height: 1.8;
}

.story-cover {
  align-self: start;
  border: var(--rule-thin) solid var(--color-rule);
  background: var(--color-paper-2);
}

.story-cover img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

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

.case-map {
  position: relative;
  display: grid;
  gap: var(--space-md);
  padding: var(--space-lg);
  background: var(--color-paper-2);
  border: var(--rule-thin) solid var(--color-rule);
}

.case-map::before {
  content: "";
  position: absolute;
  inset-block: var(--space-xl);
  inset-inline-start: calc(var(--space-lg) + var(--space-md));
  width: var(--rule-thin);
  background: var(--color-blue-deep);
}

.case-node {
  position: relative;
  min-width: 0;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: var(--space-md);
  align-items: start;
  padding: var(--space-lg);
  background: var(--color-paper);
  border-block-end: var(--rule-thin) solid var(--color-rule);
}

.case-node__key {
  position: relative;
  z-index: var(--z-base);
  width: 2.5rem;
  height: 2.5rem;
  display: grid;
  place-items: center;
  background: var(--color-blue);
  color: var(--color-ink);
  border: var(--rule-thin) solid var(--color-blue-deep);
  border-radius: 50%;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

.case-node__body {
  min-width: 0;
  display: grid;
  gap: var(--space-xs);
}

.case-node__body p {
  color: var(--color-muted);
}

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

.feature {
  min-width: 0;
  display: grid;
  gap: var(--space-sm);
  padding: var(--space-xl) var(--space-lg);
  border-block-start: var(--rule-thin) solid var(--color-rule);
  background: var(--color-paper);
  transition: transform var(--dur-short) var(--ease-out), box-shadow var(--dur-short) var(--ease-out);
}

.feature__meta {
  color: var(--color-blue-deep);
  font-size: var(--text-sm);
  font-weight: 700;
}

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

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

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

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

.gallery-card img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  transition: transform var(--dur-short) var(--ease-out), opacity var(--dur-short) var(--ease-out);
}

.gallery-card[hidden] {
  display: none;
}

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

.gallery-filter {
  min-height: 2.75rem;
  padding-inline: var(--space-md);
  border: var(--rule-thin) solid var(--color-rule);
  background: var(--color-paper);
  color: var(--color-ink-2);
  cursor: pointer;
  white-space: nowrap;
}

.gallery-filter[aria-selected="true"] {
  border-color: var(--color-blue-deep);
  background: var(--color-blue);
  color: var(--color-ink);
}

.gallery-filter:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.download-panel {
  display: grid;
  gap: var(--space-xl);
  padding: var(--space-xl);
  background: var(--color-paper);
  color: var(--color-ink);
  border: var(--rule-strong) solid var(--color-accent-deep);
}

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

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

.download-fact {
  padding: var(--space-md);
  background: var(--color-paper-2);
  border-block-start: var(--rule-thin) solid var(--color-rule);
}

.download-fact span {
  display: block;
  color: var(--color-muted);
  font-size: var(--text-sm);
}

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

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

.timeline-item time {
  min-width: 6.5rem;
  color: var(--color-blue-deep);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

.timeline-item ul {
  padding-inline-start: var(--space-lg);
}

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

.fit-card {
  min-width: 0;
  padding: var(--space-xl) var(--space-lg);
  border-block-start: var(--rule-strong) solid var(--color-pink-deep);
  background: var(--color-paper);
  color: var(--color-ink);
}

.fit-card p {
  margin-block-start: var(--space-sm);
  color: var(--color-muted);
}

.accordion {
  border-block-start: var(--rule-thin) solid var(--color-rule);
}

.accordion details {
  border-block-end: var(--rule-thin) solid var(--color-rule);
}

.accordion summary {
  min-height: 3.75rem;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: var(--space-md);
  align-items: center;
  padding-block: var(--space-md);
  cursor: pointer;
  list-style: none;
  font-weight: 700;
}

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

.accordion summary::after {
  content: "+";
  width: 2.75rem;
  height: 2.75rem;
  display: grid;
  place-items: center;
  border: var(--rule-thin) solid var(--color-rule);
}

.accordion details[open] summary::after {
  content: "−";
  background: var(--color-pink);
  border-color: var(--color-pink-deep);
}

.accordion__body {
  display: grid;
  gap: var(--space-sm);
  padding: 0 var(--space-xl) var(--space-lg) 0;
  color: var(--color-muted);
}

.final-cta {
  position: relative;
  display: grid;
  gap: var(--space-lg);
  padding-block: var(--space-3xl);
  background: var(--color-paper-blue);
  color: var(--color-ink);
  border-block: var(--rule-thin) solid var(--color-blue);
}

.final-cta__inner {
  display: grid;
  gap: var(--space-lg);
}

.site-footer {
  padding-block: var(--space-2xl) var(--space-3xl);
  background: var(--color-dark);
  color: var(--color-on-dark);
}

.footer-mast {
  display: grid;
  gap: var(--space-xl);
}

.footer-brand {
  display: grid;
  gap: var(--space-sm);
}

.footer-brand strong {
  font-family: var(--font-display);
  font-size: var(--text-xl);
}

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

.footer-links a,
.related-links a {
  min-height: 2.75rem;
  display: inline-flex;
  align-items: center;
  width: fit-content;
  color: var(--color-on-dark);
  white-space: nowrap;
}

.footer-legal {
  display: grid;
  gap: var(--space-sm);
  padding-block-start: var(--space-lg);
  border-block-start: var(--rule-thin) solid var(--color-dark-2);
  font-size: var(--text-sm);
}

.sticky-cta {
  position: fixed;
  inset-inline: 0;
  inset-block-end: 0;
  z-index: var(--z-sticky-nav);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
  padding: var(--space-xs) max(var(--space-md), env(safe-area-inset-left)) calc(var(--space-xs) + env(safe-area-inset-bottom)) max(var(--space-md), env(safe-area-inset-right));
  background: var(--color-dark);
  color: var(--color-on-dark);
  border-block-start: var(--rule-thin) solid var(--color-on-dark);
}

.sticky-cta span {
  display: none;
}

.sticky-cta .btn {
  width: 100%;
}

.lightbox {
  position: fixed;
  inset: 0;
  width: min(94%, 76rem);
  height: fit-content;
  max-height: 90dvh;
  margin: auto;
  padding: 0;
  border: var(--rule-thin) solid var(--color-rule);
  background: var(--color-dark);
  color: var(--color-on-dark);
  overflow: auto;
}

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

.lightbox__figure {
  display: grid;
  gap: var(--space-sm);
}

.lightbox__figure img {
  width: 100%;
  max-height: 78dvh;
  object-fit: contain;
}

.lightbox__caption {
  padding: 0 var(--space-lg) var(--space-lg);
}

.lightbox__close,
.lightbox__prev,
.lightbox__next {
  position: fixed;
  z-index: var(--z-raised);
  width: 2.75rem;
  height: 2.75rem;
  display: grid;
  place-items: center;
  border: var(--rule-thin) solid var(--color-on-dark);
  background: var(--color-dark);
  color: var(--color-on-dark);
  cursor: pointer;
}

.lightbox__close {
  inset-block-start: var(--space-md);
  inset-inline-end: var(--space-md);
}

.lightbox__prev,
.lightbox__next {
  inset-block-start: 50%;
  transform: translateY(-50%);
}

.lightbox__prev {
  inset-inline-start: var(--space-md);
}

.lightbox__next {
  inset-inline-end: var(--space-md);
}

.page-hero {
  padding-block: var(--space-2xl) var(--space-3xl);
  background: var(--color-paper-blue);
  border-block-end: var(--rule-thin) solid var(--color-blue);
}

.page-hero__inner {
  display: grid;
  gap: var(--space-lg);
}

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

.breadcrumbs a {
  min-height: 2.75rem;
  display: inline-flex;
  align-items: center;
  white-space: nowrap;
}

.platform-grid {
  display: grid;
  gap: var(--space-lg);
}

.platform-card {
  position: relative;
  display: grid;
  gap: var(--space-lg);
  padding: var(--space-xl);
  border: var(--rule-thin) solid var(--color-rule);
  background: var(--color-paper);
}

.platform-card--recommended {
  border-color: var(--color-accent-deep);
  border-width: var(--rule-strong);
}

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

.platform-card[aria-disabled="true"] {
  opacity: 0.58;
}

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

.step {
  counter-increment: install-step;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: var(--space-md);
  align-items: start;
}

.step::before {
  content: counter(install-step, decimal-leading-zero);
  width: 3rem;
  height: 3rem;
  display: grid;
  place-items: center;
  background: var(--color-pink);
  border: var(--rule-thin) solid var(--color-pink-deep);
  font-weight: 700;
}

.compat-table th,
.compat-table td {
  padding: var(--space-md);
  border-block-end: var(--rule-thin) solid var(--color-rule);
  text-align: start;
}

.compat-table th {
  width: 34%;
  color: var(--color-muted);
  font-weight: 400;
}

.guide-layout {
  display: grid;
  gap: var(--space-2xl);
}

.guide-toc {
  align-self: start;
  padding: var(--space-lg);
  background: var(--color-paper-2);
  border-block-start: var(--rule-strong) solid var(--color-blue-deep);
}

.guide-toc strong {
  display: block;
  margin-block-end: var(--space-sm);
}

.guide-toc nav {
  display: grid;
}

.guide-toc a {
  min-height: 2.75rem;
  display: flex;
  align-items: center;
  border-block-end: var(--rule-thin) solid var(--color-rule-2);
  text-decoration: none;
  white-space: nowrap;
}

.guide-content {
  display: grid;
  gap: var(--space-3xl);
}

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

.guide-section p,
.guide-section li,
.article-body p,
.article-body li {
  line-height: 1.8;
}

.guide-section ol,
.guide-section ul,
.article-body ol,
.article-body ul {
  display: grid;
  gap: var(--space-sm);
  padding-inline-start: var(--space-lg);
}

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

.guide-card,
.article-card {
  display: grid;
  gap: var(--space-sm);
  padding: var(--space-xl) var(--space-lg);
  background: var(--color-paper);
  border-block-start: var(--rule-strong) solid var(--color-blue-deep);
}

.guide-card a,
.article-card a {
  min-height: 2.75rem;
  display: inline-flex;
  align-items: center;
  width: fit-content;
  white-space: nowrap;
  font-weight: 700;
}

.article-layout {
  display: grid;
  gap: var(--space-2xl);
}

.article-body {
  display: grid;
  gap: var(--space-xl);
}

.article-body section {
  display: grid;
  gap: var(--space-md);
}

.article-aside {
  align-self: start;
  padding: var(--space-lg);
  background: var(--color-paper-2);
  border-block-start: var(--rule-strong) solid var(--color-pink-deep);
}

.back-to-top {
  position: fixed;
  inset-inline-end: var(--space-md);
  inset-block-end: 5.5rem;
  z-index: var(--z-sticky);
  width: 2.75rem;
  height: 2.75rem;
  display: grid;
  place-items: center;
  border: var(--rule-thin) solid var(--color-rule);
  background: var(--color-paper);
  color: var(--color-ink);
  opacity: 0;
  visibility: hidden;
  transform: translateY(var(--space-sm));
  transition: opacity var(--dur-short) var(--ease-out), transform var(--dur-short) var(--ease-out), visibility var(--dur-short) var(--ease-out);
}

.back-to-top.is-visible {
  opacity: 1;
  visibility: visible;
  transform: none;
}

@keyframes petal-drift {
  0% { opacity: 0; transform: translate3d(0, calc(var(--space-md) * -1), 0) rotate(0); }
  18% { opacity: 0.7; }
  100% { opacity: 0; transform: translate3d(calc(var(--space-xl) * -1), var(--space-3xl), 0) rotate(120deg); }
}

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

@media (hover: hover) and (pointer: fine) {
  .btn:hover {
    transform: translateY(-1px);
  }

  .btn--primary:hover::after {
    animation: sheen var(--dur-long) var(--ease-out) 1;
  }

  .nav-link:hover,
  .mega-trigger:hover,
  .mega-link:hover {
    color: var(--color-blue-deep);
  }

  .feature:hover {
    transform: translateY(-2px);
    box-shadow: 0 var(--space-xs) var(--space-lg) var(--color-shadow);
  }

  .gallery-card button:hover img,
  .gallery-card button:focus-visible img {
    opacity: 0.92;
    transform: scale(1.02);
  }

  .footer-links a:hover,
  .related-links a:hover {
    text-decoration-color: var(--color-accent);
  }
}

@keyframes sheen {
  to { transform: translateX(600%) skewX(-18deg); }
}

.btn:active,
.nav-link:active,
.mega-trigger:active,
.mega-link:active,
.menu-toggle:active,
.gallery-filter:active,
.lightbox button:active {
  transform: translateY(1px);
}

@media (min-width: 40rem) {
  :root {
    --banner-height: 6.75rem;
  }

  .shell {
    width: min(100% - 3rem, var(--container));
  }

  .nav-actions .btn {
    display: inline-flex;
  }

  .hero__title {
    font-size: var(--text-display);
  }

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

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

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

  .feature:nth-child(3) {
    grid-column: 1 / -1;
  }

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

  .gallery-card:first-child {
    grid-column: auto;
  }

  .download-panel {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr);
    align-items: center;
  }

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

  .sticky-cta span {
    display: inline;
  }

  .sticky-cta .btn {
    width: auto;
  }

  .footer-mast {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 0.7fr);
  }
}

@media (min-width: 60rem) {
  :root {
    --banner-height: 6.75rem;
  }

  .desktop-nav {
    display: flex;
  }

  .menu-toggle {
    display: none;
  }

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

  .hero__inner {
    grid-template-columns: minmax(0, 1fr) minmax(16rem, 0.55fr);
    align-items: end;
  }

  .hero__stats {
    align-content: end;
    justify-content: end;
  }

  .info-grid {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }

  .info-item {
    border-block-end: 0;
    border-inline-end: var(--rule-thin) solid var(--color-rule-2);
  }

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

  .story-layout {
    grid-template-columns: minmax(0, 1.2fr) minmax(19rem, 0.8fr);
  }

  .case-map {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    min-height: 32rem;
    align-items: center;
  }

  .case-map::before {
    inset: 50% var(--space-xl) auto;
    width: auto;
    height: var(--rule-thin);
  }

  .case-node {
    grid-template-columns: 1fr;
  }

  .case-node:nth-child(1) {
    grid-column: 1 / span 4;
    align-self: start;
  }

  .case-node:nth-child(2) {
    grid-column: 5 / span 4;
    align-self: end;
  }

  .case-node:nth-child(3) {
    grid-column: 9 / span 4;
    align-self: start;
  }

  .feature-grid {
    grid-template-columns: 1.15fr 0.85fr 1fr;
  }

  .feature:nth-child(3) {
    grid-column: auto;
  }

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

  .gallery-card:first-child {
    grid-column: auto;
  }

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

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

  .guide-layout,
  .article-layout {
    grid-template-columns: 17rem minmax(0, 1fr);
  }

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

  .platform-grid,
  .guide-cards,
  .article-grid {
    grid-template-columns: repeat(2, 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;
  }

  .petal {
    display: none;
  }
}

@media print {
  .promo,
  .site-header,
  .sticky-cta,
  .back-to-top,
  .hero__actions,
  .gallery-toolbar {
    display: none !important;
  }

  body {
    padding: 0;
  }
}