:root {
  color-scheme: light dark;
  --ink: #262626;
  --white: #ffffff;
  --blue: #1c62a0;
  --sky: #55b2f2;
  --surface: var(--white);
  --page: var(--white);
  --muted: #5a5a5a;
  --line: rgba(38, 38, 38, 0.14);
  --shadow: 0 24px 70px rgba(38, 38, 38, 0.12);
  --radius: 28px;
  --max-width: 1180px;
  --font-display:
    "SF Pro Display",
    "SF Pro Text",
    -apple-system,
    BlinkMacSystemFont,
    "Helvetica Neue",
    Helvetica,
    Arial,
    sans-serif;
  --font-body:
    "SF Pro Text",
    "SF Pro Display",
    -apple-system,
    BlinkMacSystemFont,
    "Helvetica Neue",
    Helvetica,
    Arial,
    sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

html:lang(ja) {
  --font-display:
    "Hiragino Sans",
    "Hiragino Kaku Gothic ProN",
    "Yu Gothic",
    "Meiryo",
    "SF Pro Display",
    "SF Pro Text",
    sans-serif;
  --font-body:
    "Hiragino Sans",
    "Hiragino Kaku Gothic ProN",
    "Yu Gothic",
    "Meiryo",
    "SF Pro Text",
    "SF Pro Display",
    sans-serif;
}

html:lang(ko) {
  --font-display:
    "Apple SD Gothic Neo",
    "Malgun Gothic",
    "Noto Sans KR",
    "SF Pro Display",
    "SF Pro Text",
    sans-serif;
  --font-body:
    "Apple SD Gothic Neo",
    "Malgun Gothic",
    "Noto Sans KR",
    "SF Pro Text",
    "SF Pro Display",
    sans-serif;
}

html:lang(ar-SA) {
  --font-display:
    "Geeza Pro",
    "Damascus",
    "Noto Naskh Arabic",
    "SF Pro Display",
    "SF Pro Text",
    sans-serif;
  --font-body:
    "Geeza Pro",
    "Damascus",
    "Noto Naskh Arabic",
    "SF Pro Text",
    "SF Pro Display",
    sans-serif;
}

html:lang(hi) {
  --font-display:
    "Devanagari Sangam MN",
    "Kohinoor Devanagari",
    "Noto Sans Devanagari",
    "SF Pro Display",
    "SF Pro Text",
    sans-serif;
  --font-body:
    "Devanagari Sangam MN",
    "Kohinoor Devanagari",
    "Noto Sans Devanagari",
    "SF Pro Text",
    "SF Pro Display",
    sans-serif;
}

html:lang(zh-Hans),
html:lang(zh-Hant) {
  --font-display:
    "PingFang SC",
    "PingFang TC",
    "Hiragino Sans GB",
    "Microsoft YaHei",
    "SF Pro Display",
    "SF Pro Text",
    sans-serif;
  --font-body:
    "PingFang SC",
    "PingFang TC",
    "Hiragino Sans GB",
    "Microsoft YaHei",
    "SF Pro Text",
    "SF Pro Display",
    sans-serif;
}

body {
  margin: 0;
  min-width: 320px;
  background: var(--page);
  color: var(--ink);
  font-family: var(--font-body);
  line-height: 1.65;
}

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

a {
  color: inherit;
}

:focus-visible {
  outline: 3px solid var(--sky);
  outline-offset: 4px;
}

.page-shell {
  width: min(100% - 2rem, var(--max-width));
  margin: 0 auto;
  padding: clamp(1.5rem, 4vw, 3rem) 0;
}

.top-nav {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(14px);
}

.nav-shell {
  width: min(100% - 2rem, var(--max-width));
  margin: 0 auto;
  min-height: 4.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.nav-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 2rem;
  padding-left: 0.6rem;
}

.nav-brand,
.nav-link {
  text-decoration: none;
  font-weight: 800;
}

.nav-brand {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.75rem;
  gap: 0.65rem;
  padding: 0.25rem 0;
  font-size: 1rem;
  white-space: nowrap;
}

.nav-brand-icon {
  width: 1.8rem;
  height: 1.8rem;
  border-radius: 0.5rem;
  flex: none;
}

.nav-link {
  color: var(--blue);
}

.nav-store-link {
  display: inline-flex;
  flex: none;
}

.locale-switcher-wrap {
  display: inline-flex;
  align-items: center;
}

.locale-switcher {
  min-height: 2.5rem;
  padding: 0.35rem 2rem 0.35rem 0.75rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
  color: var(--ink);
  font: inherit;
  font-weight: 700;
}

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

.hero,
.content-block {
  border: 1px solid var(--line);
  background: var(--surface);
}

.hero {
  overflow: clip;
}

.hero,
.content-block {
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.hero,
.hero-copy,
.hero-visual-stack,
.deck-columns,
.stack-column {
  display: grid;
  gap: clamp(1rem, 2vw, 1.5rem);
}

.hero {
  padding: clamp(1.25rem, 3vw, 2rem);
  align-items: start;
}

.hero-title-lockup {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.hero-heading-group {
  display: grid;
  gap: 0.4rem;
}

.hero-icon img {
  width: clamp(5.4rem, 9vw, 7.2rem);
  height: clamp(5.4rem, 9vw, 7.2rem);
  border-radius: 1.6rem;
}

h1 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(2.35rem, 7vw, 4.6rem);
  line-height: 0.92;
  text-wrap: balance;
}

p,
li {
  margin: 0;
  font-size: 1rem;
}

.hero-subtitle {
  font-size: clamp(1.02rem, 1.95vw, 1.35rem);
  color: var(--blue);
}

.hero-promo {
  font-size: clamp(1.08rem, 2.1vw, 1.3rem);
  max-width: 44rem;
}

.badge-dark {
  display: none;
}

.screen-frame {
  padding: 0;
  background: transparent;
  border-radius: 0;
  box-shadow: none;
}

.screen-frame img {
  width: 100%;
  height: auto;
  border-radius: 0;
}

.content-block {
  padding: clamp(1.2rem, 3vw, 1.8rem);
}

.hero-description {
  padding: 0;
  border: 0;
  box-shadow: none;
  background: transparent;
}

.prose-block,
.compact-block,
.release-block {
  display: grid;
  gap: 1rem;
}

.prose-block > div,
.prose-inline > div {
  display: grid;
  gap: 1rem;
}

.feature-heading {
  font-weight: 800;
}

.feature-list {
  display: grid;
  gap: 0.7rem;
  margin: 0;
  padding-left: 1.25rem;
}

.release-block {
  margin-top: clamp(1.5rem, 4vw, 2.75rem);
  background: linear-gradient(135deg, rgba(28, 98, 160, 0.1), rgba(85, 178, 242, 0.18));
}

.gallery-block {
  display: grid;
  margin-top: clamp(1.5rem, 4vw, 2.75rem);
  gap: 1.25rem;
}

.gallery-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-bottom: 0.5rem;
}

h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 2.1rem);
  line-height: 1;
}

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

.gallery-thumb {
  appearance: none;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
  overflow: hidden;
  cursor: pointer;
}

.gallery-thumb img {
  width: 100%;
  height: auto;
  border-radius: 0;
}

.lightbox[hidden] {
  display: none;
}

.lightbox {
  position: fixed;
  inset: 0;
  z-index: 30;
  display: grid;
  place-items: center;
  padding: 1.5rem;
}

.lightbox-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(17, 19, 22, 0.78);
  backdrop-filter: blur(10px);
}

.lightbox-shell {
  position: relative;
  width: min(100%, 1080px);
  display: grid;
  gap: 1rem;
  z-index: 1;
}

.lightbox-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  color: #fff;
}

.lightbox-status {
  font-weight: 700;
}

.lightbox-close,
.lightbox-arrow {
  appearance: none;
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
  cursor: pointer;
  touch-action: manipulation;
}

.lightbox-close {
  padding: 0.55rem 0.85rem;
  border-radius: 999px;
  font: inherit;
  font-weight: 700;
}

.lightbox-stage {
  position: relative;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 1rem;
  min-height: 0;
}

.lightbox-viewport {
  overflow: hidden;
  width: 100%;
  min-width: 0;
}

.lightbox-track {
  display: flex;
  width: 300%;
  transform: translate3d(
    calc(var(--lightbox-track-base, 0px) + var(--lightbox-track-drag-x, 0px)),
    0,
    0
  );
}

.lightbox-track.is-snapping {
  transition: transform 220ms ease;
}

.lightbox-slide {
  flex: 0 0 33.333333%;
  display: grid;
  place-items: center;
}

.lightbox-image {
  width: min(100%, 520px);
  aspect-ratio: 1000 / 2072;
  max-height: min(78vh, 1080px);
  margin: 0 auto;
  height: auto;
  object-fit: contain;
  border-radius: 0;
  box-shadow: none;
  will-change: transform;
}

.lightbox-stage.is-dragging .lightbox-track {
  transition: none;
}

.lightbox-arrow {
  width: 3rem;
  height: 3rem;
  border-radius: 999px;
  font-size: 1.3rem;
  line-height: 1;
}

body.lightbox-open {
  overflow: hidden;
}

.release-action {
  color: var(--blue);
  text-decoration: none;
  font-weight: 700;
}

.site-footer {
  padding: 0 1rem 2rem;
  color: var(--muted);
  text-align: center;
}

.footer-stack {
  display: grid;
  gap: 0.35rem;
  justify-items: center;
}

.footer-locale-switcher {
  margin-top: 0.35rem;
}

.footer-link {
  color: var(--blue);
  text-decoration: none;
  font-weight: 700;
}

.reveal {
  opacity: 0;
  transform: translateY(1rem);
  transition:
    opacity 420ms ease,
    transform 420ms ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 1024px) {
  .nav-shell {
    min-height: auto;
    padding-block: 0.85rem;
  }

  .nav-brand {
    min-width: 2.75rem;
    padding: 0.25rem;
  }

  .nav-brand span {
    display: none;
  }

  .nav-actions {
    gap: 1.4rem;
  }

  .nav-store-link img {
    width: 136px;
    height: auto;
  }

  .hero-title-lockup {
    align-items: flex-start;
  }

  .deck-columns,
  .page-grid,
  .hero {
    grid-template-columns: 1fr !important;
  }

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

  .lightbox {
    padding: 1rem;
  }

  .lightbox-stage {
    grid-template-columns: 1fr;
    touch-action: pan-y;
  }

  .lightbox-viewport {
    width: min(100%, 420px);
    margin-inline: auto;
  }

  .lightbox-image {
    width: min(100%, 420px);
    max-height: 72vh;
  }

  .lightbox-arrow {
    display: none;
    position: absolute;
    bottom: 1rem;
    z-index: 2;
    transform: none;
  }

  .lightbox-stage [data-gallery-prev] {
    left: 1rem;
  }

  .lightbox-stage [data-gallery-next] {
    right: 1rem;
  }
}

@media (prefers-color-scheme: dark) {
  :root {
    --ink: #f5f7fa;
    --surface: #2f3236;
    --page: #1f2124;
    --blue: #55b2f2;
    --muted: rgba(245, 247, 250, 0.74);
    --line: rgba(255, 255, 255, 0.12);
    --shadow: 0 28px 80px rgba(0, 0, 0, 0.34);
  }

  .top-nav {
    background: rgba(31, 33, 36, 0.88);
  }

  .release-block {
    background: linear-gradient(135deg, rgba(28, 98, 160, 0.26), rgba(85, 178, 242, 0.16));
  }

  .badge-light {
    display: none;
  }

  .badge-dark {
    display: block;
  }
}

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

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

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