/* Social、Downloads、FLUXのページ固有CSS。セクション順は旧import順を維持する。 */

/* ===== 基盤 ===== */

/* 基盤: 変数、リセット、共通UI */

:root {
  color-scheme: dark;
  --bg: #09090a;
  --bg-deep: #000000;
  --panel: #151516;
  --panel-strong: #1d1d1f;
  --panel-muted: #27272a;
  --ink: #f4f4f1;
  --ink-soft: #aaa9a4;
  --ink-faint: #555552;
  --accent: #ff1735;
  --accent-hover: #ff4058;
  --accent-ink: #ffffff;

  --maxw: 1060px;
  --gutter: clamp(18px, 4vw, 38px);
  --section: clamp(54px, 8vw, 94px);
  --stroke: 3px;

  --font-pixel: "Archivo";
  --font-ui: "Archivo";
  --font-terminal: "IBM Plex Mono";

  /* 実際に使用する角丸は、段階的なドット形状ではなく滑らかな曲線にする。 */
  --pixel-round: inset(0 round 16px);
  --pixel-round-inner: inset(0 round 13px);
  --pixel-arc: inset(0 round 10px);
}

* { box-sizing: border-box; }
html {
  /* ページごとのスクロールバー有無でヘッダー位置が揺れないようにする。 */
  scrollbar-gutter: stable;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}
body, h1, h2, h3, h4, p, ul { margin: 0; }
button, input, select { font: inherit; }
img, iframe, video { display: block; max-width: 100%; }
a { color: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
::selection { background: var(--accent); color: var(--accent-ink); }

body {
  min-width: 320px;
  min-height: 100vh;
  min-height: 100dvh;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto;
  overflow-x: hidden;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-ui);
  font-size: clamp(1rem, 1.5vw, 1.08rem);
  line-height: 1.7;
  transition: background-color .2s linear, color .2s linear;
}

main { min-width: 0; opacity: 1; transform: none; transition: opacity .14s linear, transform .14s linear; }

.container { width: min(100%, var(--maxw)); margin-inline: auto; padding-inline: var(--gutter); }
.skip-link { position: fixed; left: 12px; top: -80px; z-index: 1500; background: var(--ink); color: var(--bg); padding: 10px 14px; font-family: var(--font-pixel); font-size: .55rem; text-decoration: none; }
.skip-link:focus-visible { top: 12px; }

.card,
.btn,
.panel {
  --surface: var(--panel);
  position: relative;
  isolation: isolate;
  overflow: hidden;
  clip-path: var(--pixel-round);
  background: var(--ink);
}

.card::before,
.btn::before,
.panel::before {
  content: "";
  position: absolute;
  inset: var(--stroke);
  z-index: -1;
  clip-path: var(--pixel-round);
  background: var(--surface);
  pointer-events: none;
}

.card > *,
.btn > *,
.panel > * { position: relative; z-index: 1; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 900;
  border-bottom: 3px solid var(--ink);
  background: var(--bg);
}
.site-header.is-scrolled { border-bottom-color: var(--accent); }
.brand { display: inline-flex; align-items: center; gap: 10px; flex: 0 0 auto; font-family: var(--font-pixel); font-size: clamp(.68rem, 1.8vw, .86rem); letter-spacing: .04em; text-decoration: none; }
.brand::before { content: ""; width: 10px; height: 10px; background: var(--accent); border: 2px solid var(--ink); }

.hero { border-bottom: 3px solid var(--ink); background: var(--bg); }
.hero-home { min-height: clamp(430px, 67vh, 650px); display: grid; place-items: center; padding: clamp(72px, 11vw, 128px) 0; }
.hero-layout { display: block; }
.eyebrow,
.section-label { font-family: var(--font-pixel); font-size: clamp(.5rem, 1.4vw, .64rem); letter-spacing: .13em; color: var(--ink-soft); }
.logo-mark { display: flex; flex-direction: column; align-items: flex-start; gap: 14px; font-weight: 400; }
.logo-koala { position: relative; font-family: var(--font-pixel); font-size: clamp(2.5rem, 9vw, 6.4rem); line-height: 1; letter-spacing: .035em; }
.logo-visual { display: flex; align-items: center; width: 100%; gap: 14px; }
.logo-visual::before,
.logo-visual::after { content: ""; height: 3px; flex: 1; background: var(--ink); }
.logo-visual span { font-family: var(--font-pixel); font-size: clamp(.68rem, 2.4vw, 1.15rem); letter-spacing: .52em; text-indent: .52em; white-space: nowrap; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 34px; }

.section { padding: var(--section) 0; border-bottom: 3px solid var(--ink); }
.section:last-of-type { border-bottom: 0; }
.section-head { display: flex; align-items: end; justify-content: space-between; gap: 22px; margin-bottom: 32px; }
.section-label { display: flex; align-items: center; color: var(--ink); }

.btn {
  --surface: var(--panel);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 48px;
  border: 0;
  padding: 12px 21px;
  color: var(--ink);
  font-family: var(--font-pixel);
  font-size: .55rem;
  letter-spacing: .08em;
  text-decoration: none;
  cursor: pointer;
  transition: transform .1s steps(2), color .1s linear;
}
.btn:hover { --surface: var(--ink); color: var(--bg); transform: translate(-2px, -2px); }
.btn.primary { --surface: var(--accent); color: var(--accent-ink); }
.btn.primary:hover { --surface: var(--accent-hover); color: var(--accent-ink); }
.btn:active { transform: translate(2px, 2px); }
.btn-lg { min-height: 58px; padding: 16px 27px; font-size: .64rem; }

.link-grid { display: flex; flex-direction: column; gap: 16px; }
.social-card { min-height: 132px; }
.card { --surface: var(--panel); display: block; text-decoration: none; transition: transform .12s steps(2); }
.card-inner { min-height: inherit; display: flex; flex-direction: column; background: transparent; }
.card h3 { flex: 1; font-family: var(--font-pixel); font-size: clamp(.82rem, 2.8vw, 1.18rem); line-height: 1.35; }
.card .handle { color: var(--ink-soft); font-family: var(--font-terminal); font-size: 1.08rem; }
.card-go { color: var(--ink); font-family: var(--font-pixel); font-size: .48rem; letter-spacing: .06em; white-space: nowrap; }
.card:hover { transform: translate(-3px, -3px); }
.card:focus-visible { outline: 3px solid var(--accent); outline-offset: 6px; }

/* ===== 共通コンポーネント ===== */

/* 共通コンポーネント、補助UI、レスポンシブ基盤。 */

.panel { --surface: var(--panel); }
.panel-inner { background: transparent; }
.panel-bar { display: flex; align-items: center; justify-content: space-between; gap: 14px; padding: 13px 18px 11px; background: var(--ink); color: var(--panel); font-family: var(--font-pixel); font-size: .47rem; letter-spacing: .08em; }
.panel-bar .accent { color: var(--accent); }
.panel-body { padding: clamp(24px, 4vw, 38px); }
.release-summary { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2px; margin-bottom: 34px; background: var(--ink); border: 2px solid var(--ink); }
.release-summary div { background: var(--panel); padding: 16px; }
.release-summary span { display: block; color: var(--ink-soft); font-family: var(--font-pixel); font-size: .43rem; letter-spacing: .07em; }
.release-summary strong { display: block; margin-top: 9px; font-family: var(--font-terminal); font-size: 1.12rem; font-weight: 400; }
.panel-body h4 { display: flex; align-items: center; gap: 10px; margin: 28px 0 13px; font-family: var(--font-pixel); font-size: .58rem; letter-spacing: .05em; }
.panel-body h4::before { content: ""; width: 7px; height: 7px; background: var(--accent); }
.panel-body h4:first-of-type { margin-top: 0; }
.panel-body ul { list-style: none; padding: 0; }
.panel-body li { position: relative; padding-left: 1.4em; margin-bottom: 8px; }
.panel-body li::before { content: "›"; position: absolute; left: 0; color: var(--accent); font-family: var(--font-pixel); }
.dl-cta { display: flex; flex-wrap: wrap; align-items: center; gap: 16px 22px; margin-top: 34px; }

/* 全ページの最下部を同じ高さ・中央配置に揃える。 */
.site-footer {
  min-height: clamp(56px, 6dvh, 72px);
  border-top: 3px solid var(--ink);
  padding: 0;
  display: flex;
  align-items: center;
  background: var(--bg-deep);
}
.site-footer .bar {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: inherit;
  gap: 0;
  color: var(--ink-soft);
  font-family: var(--font-pixel);
  font-size: .48rem;
  letter-spacing: .04em;
  line-height: 1.4;
  text-align: center;
}
[data-reveal] { opacity: 0; transform: translateY(14px); transition: opacity .34s linear, transform .34s steps(5); }
[data-reveal].is-visible { opacity: 1; transform: none; }

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

@media (max-width: 820px) {
  .release-summary { grid-template-columns: 1fr; }
  .section-head { align-items: start; flex-direction: column; }
}

@media (max-width: 560px) {
  :root { --gutter: 16px; }
  .brand { font-size: .62rem; }
  .logo-koala { font-size: clamp(2.25rem, 14vw, 3.4rem); }
  .logo-visual span { letter-spacing: .32em; text-indent: .32em; }
  .hero-actions { align-items: stretch; flex-direction: column; }
  .hero-actions .btn { width: 100%; }
  .dl-cta { align-items: stretch; flex-direction: column; }
  .dl-cta .btn { width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  [data-reveal] { opacity: 1; transform: none; }
}

/* ===== 共通ページレイアウト ===== */

/* ページ共通レイアウトとレスポンシブ調整。 */

.brand,
.section-label {
  align-items: center;
  line-height: 1;
}

.brand::before {
  box-sizing: border-box;
  flex: 0 0 auto;
  align-self: center;
  transform: none;
}

/* ピクセルフォントの実際の字面に合わせて、ブランドマークだけを微調整する。 */
.site-header .brand::before {
  transform: translateY(-.08em);
}

/* Shared top section used by portfolio, downloads and product pages. */
.page-intro {
  border-bottom: 3px solid var(--ink);
  padding: clamp(52px, 7vw, 78px) 0 clamp(38px, 5vw, 58px);
  background: var(--bg);
}

.page-intro-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  align-items: end;
  gap: 28px;
}

.page-intro-main {
  min-width: 0;
}

.page-intro-eyebrow {
  font-family: var(--font-pixel);
  text-transform: uppercase;
}

.page-intro-eyebrow {
  margin: 0 0 17px;
  color: var(--accent);
  font-size: .36rem;
  line-height: 1.6;
  letter-spacing: .11em;
}

.page-intro-title {
  max-width: 100%;
  margin: 0;
  color: var(--ink);
  font-family: var(--font-pixel);
  font-size: clamp(1.8rem, 5vw, 3.8rem);
  font-weight: 400;
  line-height: 1;
  letter-spacing: -.03em;
  overflow-wrap: anywhere;
}

.page-intro-lead {
  max-width: 60ch;
  margin: 21px 0 0;
  color: var(--ink-soft);
  font-family: var(--font-ui);
  font-size: clamp(.94rem, 1.45vw, 1.04rem);
  line-height: 1.8;
}

/* One section-header system for portfolio, downloads and release pages. */
body[data-page="downloads"] .section,
body[data-page="downloads"] .downloads-catalog-section {
  padding: clamp(46px, 6.5vw, 76px) 0;
}

body[data-page="downloads"] .section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 28px;
  margin-bottom: clamp(22px, 3.5vw, 32px);
  border-bottom: 2px solid var(--ink);
  padding-bottom: 13px;
}

@media (max-width: 820px) {
  .page-intro-inner {
    grid-template-columns: 1fr;
    align-items: start;
    gap: 18px;
  }

  body[data-page="downloads"] .section-head {
    align-items: flex-start;
    flex-direction: column;
    gap: 12px;
  }
}

@media (max-width: 560px) {
  .page-intro {
    padding: 42px 0 34px;
  }

  .page-intro-eyebrow {
    margin-bottom: 14px;
  }

  .page-intro-title {
    font-size: clamp(1.65rem, 10vw, 2.35rem);
    line-height: 1.12;
  }

  .page-intro-lead {
    margin-top: 17px;
  }

}

/* ===== Socialと基本インタラクション ===== */

/* Socialページと基本インタラクション */

.card,
.btn {
  transition:
    transform .12s steps(2),
    box-shadow .12s steps(2),
    color .1s linear,
    background-color .1s linear;
}

.card[data-reveal].is-visible:hover,
.card:hover {
  transform: translate(-4px, -4px);
  box-shadow: 5px 5px 0 var(--accent);
}
/* カード内タイトルは個別に動かさず、カード本体の移動だけに揃える。 */
.card:hover h3 { transform: none; }
.card h3 { transition: color .12s linear; }
.card:hover .card-go { color: var(--accent); }
.card:active { transform: translate(1px, 1px) !important; box-shadow: none; }

.btn:hover {
  transform: translate(-3px, -3px);
  box-shadow: 4px 4px 0 var(--accent);
}
.btn.primary:hover { box-shadow: 4px 4px 0 var(--ink); }
.btn:active { transform: translate(1px, 1px); box-shadow: none; }

.home-stack {
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 13px;
  padding-block: 11px;
}
.hero-home {
  min-height: 0;
  padding: 0;
  border-bottom: 0;
  place-items: center;
}
.hero-home .hero-layout { text-align: center; }
.hero-home .logo-mark { align-items: center; gap: 6px; }
.hero-home .logo-koala {
  font-size: clamp(2rem, 5.1vw, 4.15rem);
  letter-spacing: .04em;
}
.hero-home .logo-visual { width: min(460px, 72vw); gap: 10px; }
.hero-home .logo-visual::before,
.hero-home .logo-visual::after { height: 2px; }
.hero-home .logo-visual span {
  font-size: clamp(.54rem, 1.35vw, .78rem);
  letter-spacing: .46em;
  text-indent: .46em;
}
.hero-home .hero-actions {
  justify-content: center;
  gap: 10px;
  margin-top: 12px;
}
.hero-home .btn {
  min-height: 38px;
  padding: 9px 17px;
  font-size: .48rem;
}
.home-links-section { min-height: 0; }
@media (max-width: 820px) {
  .home-stack { justify-content: flex-start; padding-block: 34px 44px; }
  .hero-home .hero-actions { flex-direction: row; }
}

@media (max-width: 560px) {
.hero-home .hero-actions { align-items: center; flex-direction: row; }
  .hero-home .hero-actions .btn { width: auto; flex: 1; }
}

@media (max-height: 650px) and (min-width: 821px) {
  .home-stack { gap: 8px; padding-block: 6px; }
  .hero-home .logo-koala { font-size: clamp(1.7rem, 4.3vw, 3.25rem); }
  .hero-home .hero-actions { margin-top: 8px; }
  .hero-home .btn { min-height: 34px; padding-block: 7px; }
}


body {
  transition: color .12s linear;
}
.site-header,
.hero,
.site-footer,
main {
  transition: none;
}

.hero-home .hero-layout { width: 100%; }
.hero-home .hero-actions {
  width: 100%;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 6px;
}
.hero-home .btn,
.hero-home .btn.primary {
  --surface: var(--panel);
  width: 100%;
  min-height: 48px;
  padding: 0 18px;
  justify-content: space-between;
  color: var(--ink);
  background: var(--ink);
}
.hero-home .btn:hover,
.hero-home .btn.primary:hover {
  --surface: var(--accent);
  color: var(--accent-ink);
  transform: translate(-4px, -4px);
  box-shadow: 5px 5px 0 var(--ink);
}
.hero-home .btn:active,
.hero-home .btn.primary:active {
  transform: translate(1px, 1px);
  box-shadow: none;
}
@media (max-height: 650px) and (min-width: 821px) {
  .hero-home .hero-actions { gap: 4px; }
  .hero-home .btn,
  .hero-home .btn.primary { min-height: 43px; }
}

/* ===== 表示モーション ===== */

.hero-home .hero-actions {
  width: min(100%, 650px);
  margin-inline: auto;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.hero-home .btn,
.hero-home .btn.primary {
  min-width: 0;
  min-height: 48px;
  height: 48px;
  padding-inline: 17px;
}

.card,
.btn,
.card h3,
[data-reveal] {
  transition-timing-function: cubic-bezier(.22, .72, .2, 1);
}

.card,
.btn {
  will-change: transform;
  backface-visibility: hidden;
  transform: translateY(0);
  transition-duration: .22s;
}

.card h3 {
  transition-duration: .2s;
}

[data-reveal] {
  transition: opacity .4s cubic-bezier(.22, .72, .2, 1),
              transform .4s cubic-bezier(.22, .72, .2, 1);
}

.card[data-reveal].is-visible,
.card[data-reveal].is-visible:hover {
  transition: transform .22s cubic-bezier(.22, .72, .2, 1),
              box-shadow .22s cubic-bezier(.22, .72, .2, 1),
              color .18s ease,
              background-color .18s ease;
}

.card:hover,
.card[data-reveal].is-visible:hover,
.hero-home .btn:hover,
.hero-home .btn.primary:hover {
  transform: translate3d(-4px, -4px, 0);
}

.card:active,
.hero-home .btn:active,
.hero-home .btn.primary:active {
  transform: translate3d(1px, 1px, 0) !important;
}
@media (max-width: 560px) {
.hero-home .hero-actions {
    width: 100%;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 6px;
  }

.hero-home .btn,
  .hero-home .btn.primary {
    min-height: 43px;
    height: 43px;
    padding-inline: 11px;
    font-size: .39rem;
    letter-spacing: .045em;
  }
}

/* ===== FLUXバージョン・リリース ===== */

/* 商品READMEとリリースノートの長い本文も、既存パネル内で段落を読みやすく保つ。 */
.flux-readme-copy + .flux-readme-copy,
.product-copy + .product-copy { margin-top: 14px; }

.site-header,
.site-header.is-scrolled { border-bottom-color: var(--ink); }

body[data-page="downloads"] .section {
  padding: clamp(34px, 5vw, 58px) 0;
}

body[data-page="downloads"] .section-head {
  margin-bottom: 12px;
}

/* READMEからバージョン一覧へ続く商品ページでは、セクション境界線を表示しない。 */
body[data-page="downloads"] .product-readme-section {
  border-bottom: 0;
  padding-bottom: 0;
}

/* README直下のバージョン一覧だけ、通常のセクション間隔より近づける。 */
body[data-page="downloads"] .product-readme-section + .section {
  padding-top: clamp(24px, 3vw, 34px);
}

body[data-page="downloads"] .version-link-grid {
  gap: 8px;
}

body[data-page="downloads"] .version-card {
  width: 100%;
  min-width: 0;
  height: 48px;
  min-height: 48px;
}

body[data-page="downloads"] .version-card .card-inner {
  min-height: 100%;
  display: grid;
  grid-template-columns: minmax(150px, 1fr) minmax(110px, .7fr) minmax(108px, auto);
  align-items: center;
  gap: 18px;
  padding: 0 18px;
}

body[data-page="downloads"] .version-card h3 {
  min-width: 0;
  font-family: var(--font-pixel);
  font-size: clamp(.58rem, 1.35vw, .75rem);
  font-weight: 400;
  line-height: 1;
  letter-spacing: normal;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

body[data-page="downloads"] .version-card .handle {
  min-width: 0;
  color: var(--ink-soft);
  font-family: var(--font-terminal);
  font-size: 1.05rem;
  line-height: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

body[data-page="downloads"] .version-card .card-go {
  justify-self: end;
  font-family: var(--font-pixel);
  font-size: .46rem;
  line-height: 1;
  letter-spacing: .06em;
  white-space: nowrap;
}

body[data-page="downloads"] .version-card:hover h3,
body[data-page="downloads"] .version-card:focus-visible h3,
body[data-page="downloads"] .version-card:hover .handle,
body[data-page="downloads"] .version-card:focus-visible .handle,
body[data-page="downloads"] .version-card:hover .card-go,
body[data-page="downloads"] .version-card:focus-visible .card-go {
  color: var(--accent);
}

body[data-page="downloads"] .panel-bar {
  min-height: 42px;
  padding: 12px 18px 10px;
}

body[data-page="downloads"] .release-summary {
  margin-bottom: 26px;
}

body[data-page="downloads"] .dl-cta .btn {
  min-height: 52px;
}

@media (max-width: 560px) {
  body[data-page="downloads"] .version-card {
    height: 50px;
    min-height: 50px;
  }

  body[data-page="downloads"] .version-card .card-inner {
    position: relative;
    grid-template-columns: minmax(0, 1fr) minmax(66px, auto);
    gap: 7px;
    padding: 0 76px 0 10px;
  }

  body[data-page="downloads"] .version-card .handle {
    font-size: .78rem;
  }

  body[data-page="downloads"] .version-card .card-go {
    position: absolute;
    right: 10px;
    top: 50%;
    font-size: .31rem;
    transform: translateY(-50%);
  }
}

@media (max-height: 650px) and (min-width: 821px) {
  body[data-page="downloads"] .version-card {
    height: 43px;
    min-height: 43px;
  }
}

/* ===== DOWNLOADS一覧 ===== */

/* Downloads landing page only.
   Simple three-column catalog with continuous borders and clear hierarchy. */

.downloads-showcase-page .download-card-index,
.downloads-showcase-page .download-card-status,
.downloads-showcase-page .download-card-action {
  font-family: var(--font-pixel);
  text-transform: uppercase;
}

.downloads-showcase-page .downloads-catalog-section {
  padding: clamp(46px, 6.5vw, 76px) 0 clamp(76px, 9vw, 112px);
}

.downloads-showcase-page .downloads-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  align-items: stretch;
  gap: clamp(18px, 2.2vw, 24px);
}

.downloads-showcase-page .download-card {
  position: relative;
  display: block;
  min-width: 0;
  height: 100%;
  overflow: hidden;
  border: 3px solid var(--ink);
  background: var(--panel);
  color: var(--ink);
  text-decoration: none;
  transform: translate3d(0, 0, 0);
  transition: transform .5s cubic-bezier(.16, 1, .3, 1), box-shadow .5s cubic-bezier(.16, 1, .3, 1);
}

/* Continuous rectangular border fixes the broken corner outlines from clip-path. */
.downloads-showcase-page .download-card::before,
.downloads-showcase-page .download-card::after {
  content: "";
  position: absolute;
  z-index: 6;
  width: 11px;
  height: 11px;
  pointer-events: none;
}

.downloads-showcase-page .download-card::before {
  right: 5px;
  top: 5px;
  border-top: 2px solid var(--accent);
  border-right: 2px solid var(--accent);
}

.downloads-showcase-page .download-card::after {
  left: 5px;
  bottom: 5px;
  border-bottom: 2px solid var(--ink-faint);
  border-left: 2px solid var(--ink-faint);
}

.downloads-showcase-page a.download-card:hover,
.downloads-showcase-page a.download-card:focus-visible,
.downloads-showcase-page a.download-card[data-reveal].is-visible:hover,
.downloads-showcase-page a.download-card[data-reveal].is-visible:focus-visible {
  transform: translateY(-4px) !important;
  box-shadow: none;
}

.downloads-showcase-page a.download-card:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 5px;
}

.downloads-showcase-page .download-card-inner {
  display: grid;
  min-height: 404px;
  height: 100%;
  grid-template-rows: 44px 100px minmax(0, 1fr) 50px;
  background: var(--panel);
}

.downloads-showcase-page .download-card-head {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr) auto;
  min-width: 0;
  border-bottom: 2px solid var(--ink);
  background: var(--ink);
  color: var(--panel);
}

.downloads-showcase-page .download-card-index,
.downloads-showcase-page .download-card-category,
.downloads-showcase-page .download-card-status {
  display: flex;
  align-items: center;
  min-width: 0;
  line-height: 1.35;
}

.downloads-showcase-page .download-card-index {
  justify-content: center;
  background: var(--accent);
  color: #fff;
  font-size: .31rem;
  letter-spacing: .06em;
}

.downloads-showcase-page .download-card-category {
  overflow: hidden;
  padding-inline: 11px;
  font-family: var(--font-pixel);
  font-size: .3rem;
  letter-spacing: .055em;
  text-overflow: ellipsis;
  text-transform: uppercase;
  white-space: nowrap;
}

.downloads-showcase-page .download-card-status {
  justify-content: flex-end;
  padding-inline: 11px;
  color: var(--accent);
  font-size: .29rem;
  letter-spacing: .05em;
  white-space: nowrap;
}

.downloads-showcase-page .download-card-mark {
  position: relative;
  display: grid;
  place-items: center;
  overflow: hidden;
  border-bottom: 2px solid var(--ink);
  background:
    linear-gradient(90deg, transparent calc(50% - 1px), var(--ink-faint) calc(50% - 1px), var(--ink-faint) calc(50% + 1px), transparent calc(50% + 1px)),
    var(--panel-strong);
}

.downloads-showcase-page .download-card-mark::before {
  content: "";
  position: absolute;
  inset: 14px;
  border: 2px solid var(--ink-faint);
  pointer-events: none;
}

.downloads-showcase-page .download-card-content {
  display: flex;
  min-width: 0;
  flex-direction: column;
  padding: 22px 20px 18px;
}

.downloads-showcase-page .download-card-title {
  margin: 0;
  color: var(--ink);
  font-family: var(--font-pixel);
  font-size: clamp(.76rem, 1.45vw, .96rem);
  font-weight: 400;
  line-height: 1.35;
  transition: color .2s ease;
}

.downloads-showcase-page .download-card-description {
  margin: 15px 0 0;
  color: var(--ink-soft);
  font-family: var(--font-ui);
  font-size: .91rem;
  line-height: 1.68;
}

.downloads-showcase-page .download-card-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  border-top: 2px solid var(--ink);
  padding: 10px 14px;
  background: var(--panel-strong);
}

.downloads-showcase-page .download-card-foot > span:first-child {
  overflow: hidden;
  color: var(--ink-soft);
  font-family: var(--font-terminal);
  font-size: .88rem;
  line-height: 1;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.downloads-showcase-page .download-card-action {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: var(--ink);
  font-size: .27rem;
  font-weight: 400;
  line-height: 1.35;
  letter-spacing: .05em;
  white-space: nowrap;
  transition: color .2s ease, transform .2s ease;
}

.downloads-showcase-page .download-card-action::after {
  content: "→";
  color: var(--accent);
  font-family: var(--font-terminal);
  font-size: 1rem;
}

.downloads-showcase-page a.download-card:hover .download-card-title,
.downloads-showcase-page a.download-card:focus-visible .download-card-title,
.downloads-showcase-page a.download-card:hover .download-card-action,
.downloads-showcase-page a.download-card:focus-visible .download-card-action {
  color: var(--accent);
}

.downloads-showcase-page a.download-card:hover .download-card-action,
.downloads-showcase-page a.download-card:focus-visible .download-card-action {
  transform: translateX(3px);
}

@media (max-width: 900px) {
  .downloads-showcase-page .downloads-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 620px) {
  .downloads-showcase-page .downloads-grid {
    grid-template-columns: 1fr;
  }

  .downloads-showcase-page .download-card-inner {
    min-height: 390px;
  }

  .downloads-showcase-page .download-card-head {
    grid-template-columns: 40px minmax(0, 1fr) auto;
  }

  .downloads-showcase-page .download-card-category,
  .downloads-showcase-page .download-card-status {
    padding-inline: 9px;
  }

  .downloads-showcase-page .download-card-content {
    padding: 20px 17px 17px;
  }
}

@media (max-width: 430px) {
  .downloads-showcase-page .download-card-status {
    font-size: .25rem;
  }

  .downloads-showcase-page .download-card-foot {
    align-items: flex-start;
    flex-direction: column;
    gap: 7px;
  }
}

/* ===== DOWNLOADS商品カード ===== */

/* downloads.htmlの商品カード表示。 */

.downloads-showcase-page .download-card {
  border: 0;
  padding: var(--stroke);
  overflow: hidden;
  clip-path: var(--pixel-round);
  background: var(--ink);
  /* 3D変形による内部境界線のちらつきを避け、カードは2Dで移動させる。 */
  transform: translateY(0);
  transition:
    transform .5s cubic-bezier(.16, 1, .3, 1),
    color .4s cubic-bezier(.22, .72, .2, 1),
    background-color .4s cubic-bezier(.22, .72, .2, 1);
}

.downloads-showcase-page .download-card::before,
.downloads-showcase-page .download-card::after {
  content: none;
}

/* Keep the inner panel aligned with the pixel-shaped border. */
.downloads-showcase-page .download-card-inner {
  overflow: hidden;
  clip-path: var(--pixel-round);
  grid-template-rows: 60px 100px minmax(0, 1fr) 52px;
}

/* Move only the complete card on hover. */
.downloads-showcase-page a.download-card:hover,
.downloads-showcase-page a.download-card:focus-visible,
.downloads-showcase-page a.download-card[data-reveal].is-visible:hover,
.downloads-showcase-page a.download-card[data-reveal].is-visible:focus-visible {
  transform: translateY(-4px) !important;
  box-shadow: none !important;
}

.downloads-showcase-page a.download-card:active {
  transform: translateY(-2px) !important;
  box-shadow: none !important;
}

/* Prevent independent movement of the title and action label. */
.downloads-showcase-page .download-card-title,
.downloads-showcase-page .download-card-action {
  transform: none;
  transition: color .14s linear;
}

/* 商品名はメタ情報ではなく、タイトルとして見えるディスプレイ書体に揃える。 */
.downloads-showcase-page .download-card-title {
  font-family: var(--font-display);
  font-weight: 700;
}

.downloads-showcase-page a.download-card:hover .download-card-title,
.downloads-showcase-page a.download-card:focus-visible .download-card-title,
.downloads-showcase-page a.download-card:hover .download-card-action,
.downloads-showcase-page a.download-card:focus-visible .download-card-action {
  transform: none;
}

/* Improve readability and alignment of the card metadata. */
.downloads-showcase-page .download-card-head {
  grid-template-columns: 58px minmax(0, 1fr) auto;
}

.downloads-showcase-page .download-card-index {
  font-size: .65rem;
  letter-spacing: .035em;
}

.downloads-showcase-page .download-card-category {
  justify-content: flex-start;
  padding-inline: 16px;
  font-size: .59rem;
  letter-spacing: .035em;
}

.downloads-showcase-page .download-card-status {
  justify-content: flex-end;
  padding-inline: 16px;
  font-size: .55rem;
  letter-spacing: .03em;
}

/* Keep the footer action legible and use a right arrow. */
.downloads-showcase-page .download-card-action {
  gap: 8px;
  font-size: .36rem;
  line-height: 1.45;
  letter-spacing: .055em;
}

.downloads-showcase-page .download-card-action::after {
  content: "\2192";
  font-size: 1.05rem;
}

/* Allow the thumbnail to be replaced by a standard image asset. */
.downloads-showcase-page .download-card-mark {
  /* Grid行の丸め誤差で下地が見えないよう、画像をメタ情報の裏へ重ねる。 */
  z-index: 1;
  margin-top: -2px;
  background: var(--panel-strong);
}

.downloads-showcase-page .download-card-mark::before {
  content: none;
}

.downloads-showcase-page .download-card-thumbnail {
  display: block;
  width: 100%;
  height: 100%;
  border: 0;
  background: transparent;
  /* 3:1の専用バナーを比率のまま表示し、重要な中央領域を保つ。 */
  object-fit: cover;
  object-position: center;
  transform: none;
  transition: none;
}

@media (max-width: 620px) {
  .downloads-showcase-page .download-card-inner {
    grid-template-rows: 58px 100px minmax(0, 1fr) 52px;
  }

  .downloads-showcase-page .download-card-head {
    grid-template-columns: 54px minmax(0, 1fr) auto;
  }

  .downloads-showcase-page .download-card-index {
    font-size: .58rem;
  }

  .downloads-showcase-page .download-card-category,
  .downloads-showcase-page .download-card-status {
    padding-inline: 12px;
    font-size: .5rem;
  }
}

@media (max-width: 430px) {
  .downloads-showcase-page .download-card-category,
  .downloads-showcase-page .download-card-status {
    padding-inline: 10px;
    font-size: .45rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .downloads-showcase-page .download-card,
  .downloads-showcase-page .download-card-title,
  .downloads-showcase-page .download-card-action {
    transition: none !important;
  }
}

/* ===== エントリーポイント後置補正 ===== */

/* KOALAVISUALのブランドマークは字面より下寄りに見えるため補正する。 */
.site-header .brand::before {
  transform: translateY(-2px);
}

/* data-revealは同時表示せず、JSで上から順に開始する。 */
[data-reveal].reveal-staggered {
  transition: none !important;
  animation: kv-reveal-slow .5s cubic-bezier(.22, .72, .2, 1) both;
}

/* DOWNLOADSの商品カードは初回表示アニメーション中でもhover移動を補間する。 */
.downloads-showcase-page .download-card.reveal-staggered {
  transition:
    transform .18s cubic-bezier(.22, .72, .2, 1),
    color .14s linear,
    background-color .14s linear !important;
  animation: kv-reveal-fade .5s cubic-bezier(.22, .72, .2, 1) both;
}

@keyframes kv-reveal-slow {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

@keyframes kv-reveal-fade {
  from { opacity: 0; }
  to { opacity: 1; }
}

@media (prefers-reduced-motion: reduce) {
  [data-reveal].reveal-staggered {
    animation: none;
  }
}