/*
 * Luna Game Lab / B-Line inspired site-wide catalog theme.
 * The attached DESIGN reference is the source of truth for this surface.
 */
:root {
  --color-ink: #000000;
  --color-paper: #ffffff;
  --color-graphite: #595959;
  --font-helvmono: 'HELVMONO', 'JetBrains Mono', 'IBM Plex Mono', ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  --font-helvetica-bold: Helvetica, Arial, sans-serif;
  --font-apple-system: -apple-system, BlinkMacSystemFont, 'Segoe UI', Arial, sans-serif;
  --text-caption: 12px;
  --text-body: 14px;
  --text-display: 220px;
  --spacing-unit: 4px;
  --section-gap: 32px;
  --card-padding: 4px;
  --element-gap: 5px;
  --radius-cards: 0px;
  --radius-links: 14.4px;
  --radius-buttons: 4px;
  --shadow-subtle: rgba(0, 0, 0, 0.15) 0 0 0 1px;
}

* { box-sizing: border-box; }
html { min-width: 320px; background: var(--color-paper); }
body {
  margin: 0;
  min-height: 100vh;
  color: var(--color-ink);
  background: var(--color-paper);
  font-family: var(--font-helvmono);
  font-size: var(--text-body);
  line-height: 1.3;
}

a { color: inherit; }
button { font-family: var(--font-apple-system); }
a:focus-visible, button:focus-visible { outline: 2px solid var(--color-ink); outline-offset: 3px; }

.site-header {
  min-height: 52px;
  height: auto;
  padding: 16px 4px 12px;
  border-bottom: 0;
  align-items: flex-start;
}
.brand { gap: 8px; }
.brand-mark {
  width: auto;
  height: auto;
  display: block;
  background: transparent;
  color: var(--color-ink);
  transform: none;
  font: 400 14px/1.3 var(--font-helvmono);
}
.brand-mark::before { content: '['; }
.brand-mark::after { content: ']'; }
.brand > span:last-child { gap: 1px; }
.brand strong {
  font: 400 14px/1.3 var(--font-helvmono);
  letter-spacing: 0;
}
.brand small, .header-note, .kicker, .collection-count, .card-meta, .card-footer, .theory-tags {
  font-family: var(--font-helvmono);
  font-size: 12px;
  font-weight: 400;
  line-height: 1.3;
  letter-spacing: 0;
}
.brand small, .header-note, .collection-count { color: var(--color-graphite); }
.header-note {
  display: flex;
  align-items: center;
  gap: 16px;
}
.header-note i { display: none; }
.header-note::before { content: ''; }
.header-note a { color: var(--color-ink); text-decoration: none; }
.header-note a:hover { border-bottom: 1px solid var(--color-ink); }
.header-note span { color: var(--color-graphite); }

main { max-width: none; margin: 0; padding: 0; }
.hero {
  display: block;
  min-height: 0;
  padding: 14px 4px 32px;
}
.hero-copy { max-width: none; }
.kicker { color: var(--color-graphite); margin: 0; }
.hero h1 {
  max-width: none;
  margin: 12px 0 18px;
  color: var(--color-ink);
  font-family: var(--font-helvetica-bold);
  font-size: clamp(62px, 15.3vw, 220px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -.075em;
  white-space: nowrap;
}
.hero h1 em { color: inherit; font-style: normal; }
.hero-lead {
  max-width: 760px;
  margin: 0;
  color: var(--color-graphite);
  font-family: var(--font-helvmono);
  font-size: 14px;
  line-height: 1.6;
}
.hero-link {
  display: inline-flex;
  gap: 10px;
  align-items: center;
  margin-top: 16px;
  padding: 4px 8px;
  border: 1px solid transparent;
  border-radius: var(--radius-links);
  color: var(--color-ink);
  font-family: var(--font-helvmono);
  font-size: 14px;
  text-decoration: none;
}
.hero-link:hover { border-color: var(--color-ink); }
.hero-link span { color: inherit; font-size: 14px; }
.hero-orbit { display: none; }

.collection { padding: 0 0 32px; }
.section-intro {
  align-items: baseline;
  padding: 0 4px 8px;
  border-bottom: 1px solid var(--color-ink);
}
.section-intro h2 {
  margin: 0;
  font-family: var(--font-helvmono);
  font-size: 14px;
  font-weight: 400;
  letter-spacing: 0;
}
.game-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0;
  padding-top: 0;
}
.game-card {
  position: relative;
  display: block;
  min-height: 0;
  aspect-ratio: 1;
  overflow: hidden;
  border: 1px solid var(--color-ink);
  border-radius: var(--radius-cards);
  background: var(--color-paper);
  color: var(--color-ink);
  transition: none;
}
.game-card:hover {
  transform: none;
  box-shadow: none;
  outline: 2px solid var(--color-ink);
  outline-offset: -2px;
  z-index: 2;
}
.card-visual {
  position: absolute;
  inset: 0;
  height: auto;
  display: grid;
  place-items: center;
  background: var(--color-paper) !important;
  filter: grayscale(1);
}
.card-visual::after {
  content: '';
  position: absolute;
  inset: 0;
  border: 1px solid var(--color-ink);
  pointer-events: none;
}
.mini-visual span {
  color: var(--color-ink) !important;
  border-color: var(--color-ink) !important;
  box-shadow: none !important;
}
.mini-visual b { color: var(--color-graphite) !important; }
.card-content {
  position: absolute;
  inset: 0;
  z-index: 3;
  display: block;
  padding: var(--card-padding);
  pointer-events: none;
}
.card-meta {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  color: var(--color-graphite);
  font-size: 10px;
}
.card-content h3 {
  margin: 0;
  font-family: var(--font-helvmono);
  font-size: 14px;
  font-weight: 400;
  line-height: 1.3;
  letter-spacing: 0;
}
.card-content h3 small {
  display: block;
  margin: 2px 0 0;
  color: var(--color-graphite);
  font: 400 10px/1.3 var(--font-helvmono);
  letter-spacing: 0;
}
.card-content p, .card-footer { display: none; }
.visual-stamp { color: var(--color-graphite); }
.tiny-board, .sanjin-rings, .sanjin-card { filter: grayscale(1); }

.lab-note {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px 32px;
  padding: 32px 4px;
  border-top: 1px solid var(--color-ink);
}
.lab-note h2 {
  margin: 4px 0 0;
  font: 400 14px/1.3 var(--font-helvmono);
  letter-spacing: 0;
}
.lab-note > p {
  max-width: none;
  margin: 0;
  color: var(--color-graphite);
  font: 400 14px/1.6 var(--font-helvmono);
}
.theory-tags {
  grid-column: 1 / -1;
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
}
.theory-tags span {
  padding: 4px 8px;
  border: 1px solid var(--color-ink);
  color: var(--color-ink);
  font-size: 10px;
}
.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 4px 22px;
  border-top: 1px solid var(--color-ink);
  color: var(--color-graphite);
  font: 400 12px/1.3 var(--font-helvmono);
  letter-spacing: 0;
}

@media (max-width: 720px) {
  .site-header { padding-left: 4px; padding-right: 4px; }
  .header-note { gap: 8px; }
  .hero h1 { font-size: clamp(48px, 14.8vw, 108px); white-space: normal; }
  .game-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .lab-note { grid-template-columns: 1fr; }
  .site-footer { flex-direction: column; gap: 5px; }
}

/* Luna moonlight surface: the catalog stays restrained, but the playable site
 * uses a single dark, high-contrast night palette on every page. */
:root {
  --luna-void: #080d18;
  --luna-night: #101827;
  --luna-water: #17243a;
  --luna-line: #35445f;
  --luna-moon: #edf4ff;
  --luna-mist: #b8c5d9;
  --luna-dim: #7f91ad;
  --luna-blue: #91c8f4;
  --luna-amber: #f0cc82;
  --luna-p1: #f1d38e;
  --luna-p2: #8fc6ee;
  --luna-danger: #f19a91;
}

html { min-width: 320px; overflow-x: hidden; background: var(--luna-void) !important; color-scheme: dark; }
body {
  min-width: 320px;
  overflow-x: hidden;
  color: var(--luna-moon) !important;
  background: radial-gradient(circle at 80% -15%, rgba(145, 200, 244, .16), transparent 34%), linear-gradient(145deg, var(--luna-void), var(--luna-night) 58%, #0b1425) !important;
  font-family: 'Noto Sans JP', 'Manrope', system-ui, sans-serif;
  font-size: 15px;
  line-height: 1.65;
}

.site-header {
  min-height: 72px;
  height: auto;
  padding: 18px clamp(16px, 5vw, 72px) 16px;
  border-bottom: 1px solid var(--luna-line);
  background: rgba(8, 13, 24, .86);
}
.brand { color: var(--luna-moon); gap: 12px; }
.brand-mark {
  width: 37px;
  height: 37px;
  border: 1px solid var(--luna-blue);
  background: var(--luna-water) !important;
  color: var(--luna-amber) !important;
  transform: rotate(45deg) !important;
  font: 500 14px/1 'DM Mono', monospace;
}
.brand > span:last-child { gap: 2px; }
.brand strong { color: var(--luna-moon); font: 600 16px/1.3 'Manrope', 'Noto Sans JP', sans-serif; letter-spacing: -.02em; }
.brand small, .header-note, .kicker, .collection-count, .card-meta, .card-footer, .theory-tags {
  color: var(--luna-dim);
  font: 500 12px/1.45 'DM Mono', monospace;
  letter-spacing: .04em;
}
.header-note { gap: 14px; }
.header-note a { color: var(--luna-mist); text-decoration: none; }
.header-note a:hover, .header-note a:focus-visible { color: var(--luna-blue); }

main { max-width: 1440px; margin: 0 auto; padding: 0 clamp(16px, 5vw, 72px); }
.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(210px, 320px);
  align-items: center;
  gap: clamp(28px, 7vw, 100px);
  min-height: 390px;
  padding: 58px 0 64px;
}
.hero-copy { max-width: 760px; }
.kicker { color: var(--luna-blue); }
.hero h1 {
  max-width: 760px;
  margin: 15px 0 18px;
  color: var(--luna-moon) !important;
  font-size: clamp(52px, 8vw, 112px);
  line-height: .98;
  letter-spacing: -.075em;
  white-space: normal;
}
.hero h1 em { color: var(--luna-amber); }
.hero-lead {
  max-width: 680px;
  margin: 0;
  color: var(--luna-mist) !important;
  font-size: 15px;
  line-height: 1.9;
}
.hero-link {
  display: inline-flex;
  gap: 12px;
  align-items: center;
  min-height: 46px;
  margin-top: 23px;
  padding: 9px 15px;
  border: 1px solid var(--luna-blue);
  border-radius: 4px;
  background: rgba(145, 200, 244, .1);
  color: var(--luna-moon);
  font-size: 14px;
  text-decoration: none;
}
.hero-link:hover, .hero-link:focus-visible { background: rgba(145, 200, 244, .2); }
.hero-link span { color: var(--luna-amber); font-size: 18px; }
.hero-orbit {
  position: relative;
  display: block;
  width: 100%;
  aspect-ratio: 1;
  border: 1px solid var(--luna-line);
  border-radius: 50%;
  background: radial-gradient(circle at 45% 38%, rgba(237, 244, 255, .08), transparent 38%), var(--luna-night);
  box-shadow: 0 22px 70px rgba(0, 0, 0, .3), 0 0 0 1px rgba(145, 200, 244, .06);
  transform: rotate(-8deg);
}
.orbit { border-color: rgba(145, 200, 244, .36); }
.orbit-b { border-color: rgba(240, 204, 130, .58); }
.orbit-core { background: var(--luna-amber); color: var(--luna-void); }
.orbit-piece { background: var(--luna-water); color: var(--luna-blue); }
.piece-one { background: var(--luna-moon); color: var(--luna-void); }
.piece-three { background: var(--luna-blue); color: var(--luna-void); }

.collection { padding: 0 0 58px; }
.section-intro { padding: 0 0 13px; border-bottom: 1px solid var(--luna-line); }
.section-intro h2 { color: var(--luna-moon); font-size: 26px; }
.collection-count { color: var(--luna-dim); }
.game-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; padding-top: 14px; }
.game-card {
  min-height: 368px;
  aspect-ratio: auto;
  overflow: hidden;
  border: 1px solid var(--luna-line);
  border-radius: 6px;
  background: var(--luna-night) !important;
  color: var(--luna-moon) !important;
  transition: border-color .18s ease, transform .18s ease, box-shadow .18s ease;
}
.game-card:hover, .game-card:focus-visible {
  border-color: var(--luna-blue);
  outline: none;
  transform: translateY(-3px);
  box-shadow: 0 15px 36px rgba(0, 0, 0, .28);
}
.card-visual, .rokumon-visual, .sanjin-visual, .mini-visual {
  height: 168px;
  flex: 0 0 168px;
  background: radial-gradient(circle at 50% 38%, rgba(145, 200, 244, .15), transparent 45%), var(--luna-water) !important;
  filter: none !important;
}
.card-visual::after { border-color: rgba(145, 200, 244, .18) !important; }
.mini-visual b, .visual-stamp { color: var(--luna-dim) !important; font-size: 12px; }
.mini-visual span { color: var(--luna-amber) !important; border-color: rgba(145, 200, 244, .42) !important; background: transparent; box-shadow: 0 0 0 12px rgba(145, 200, 244, .04) !important; }
.tiny-board { background: var(--luna-night) !important; border-color: var(--luna-amber) !important; box-shadow: 0 12px 27px rgba(0, 0, 0, .28) !important; }
.tiny-board i { border-color: rgba(145, 200, 244, .2) !important; }
.tiny-board i.gate { background: rgba(240, 204, 130, .16) !important; }
.tiny-board i.gate:after { color: var(--luna-amber) !important; }
.tiny-board i.light-piece:after { background: var(--luna-p1) !important; color: var(--luna-void) !important; }
.tiny-board i.dark-piece:after { background: var(--luna-p2) !important; color: var(--luna-void) !important; }
.sanjin-rings { border-color: rgba(145, 200, 244, .35) !important; color: var(--luna-blue) !important; }
.sanjin-rings:before, .sanjin-rings:after { border-color: rgba(145, 200, 244, .2) !important; }
.sanjin-rings i { background: var(--luna-amber) !important; }
.sanjin-card { background: var(--luna-night) !important; border-color: var(--luna-line) !important; box-shadow: 0 7px 15px rgba(0, 0, 0, .3) !important; }
.card-back { background: var(--luna-void) !important; color: var(--luna-amber) !important; border-color: var(--luna-amber) !important; }
.card-left { color: var(--luna-p1) !important; }
.card-right { background: var(--luna-p2) !important; color: var(--luna-void) !important; border-color: var(--luna-p2) !important; }
.card-content {
  min-width: 0;
  padding: 15px 17px 14px;
  background: linear-gradient(180deg, rgba(16, 24, 39, .96), var(--luna-night));
}
.card-meta { color: var(--luna-dim) !important; font-size: 12px !important; }
.card-content h3 { margin: 13px 0 7px; color: var(--luna-moon) !important; font-size: 21px; line-height: 1.35; }
.card-content h3 small { color: var(--luna-dim) !important; font-size: 12px; }
.card-content p { display: block !important; max-width: none; margin: 0; color: var(--luna-mist) !important; font-size: 14px !important; line-height: 1.65; }
.card-footer { display: flex !important; align-items: end; justify-content: space-between; gap: 10px; margin-top: auto; padding-top: 15px; color: var(--luna-dim) !important; font-size: 12px !important; }
.card-footer b { color: var(--luna-blue) !important; font-size: 13px; }

.lab-note { grid-template-columns: 1fr 1.2fr; gap: 15px 56px; padding: 36px 0 46px; border-top: 1px solid var(--luna-line); }
.lab-note h2 { color: var(--luna-moon); font-size: 28px; }
.lab-note > p { color: var(--luna-mist) !important; font-size: 14px !important; line-height: 1.8; }
.theory-tags span { border-color: var(--luna-line); color: var(--luna-mist); font-size: 12px; }
.site-footer { padding: 19px 0 27px; border-top: 1px solid var(--luna-line); color: var(--luna-dim); font-size: 12px; }

@media (max-width: 1050px) {
  .game-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 720px) {
  body { font-size: 14px; }
  .site-header { padding: 14px 16px; }
  .header-note { gap: 9px; font-size: 10px; }
  main { padding: 0 16px; }
  .hero { display: flex; gap: 28px; min-height: 0; padding: 38px 0 44px; }
  .hero h1 { max-width: 100%; margin: 12px 0 15px; font-size: clamp(44px, 13vw, 76px); }
  .hero-lead { font-size: 14px; }
  .hero-orbit { width: min(62vw, 240px); align-self: center; }
  .game-grid { grid-template-columns: 1fr; gap: 12px; }
  .game-card { min-height: 0; }
  .card-visual { height: 150px; flex-basis: 150px; }
  .card-content { padding: 14px 15px; }
  .card-content h3 { font-size: 20px; }
  .card-content p { font-size: 14px !important; }
  .card-meta, .card-footer { font-size: 10px !important; }
  .lab-note { grid-template-columns: 1fr; gap: 13px; }
  .site-footer { flex-direction: column; gap: 7px; }
}

@media (max-width: 380px) {
  .header-note a:nth-child(n+2), .header-note span { display: none; }
}

/* Keep the catalogue cards in normal document flow. The older reference
 * stylesheet positioned the visual and copy on top of one another; that
 * poster treatment collapses card height on narrow screens. */
.game-card {
  display: flex !important;
  flex-direction: column !important;
  min-height: 368px !important;
}
.game-card .card-visual {
  position: relative !important;
  inset: auto !important;
  z-index: 1;
  flex: 0 0 168px !important;
}
.game-card .card-content {
  position: relative !important;
  inset: auto !important;
  z-index: 2;
  display: flex !important;
  flex: 1 1 auto !important;
  flex-direction: column !important;
  pointer-events: none;
}

@media (max-width: 720px) {
  .game-card { min-height: 360px !important; }
  .game-card .card-visual { flex-basis: 150px !important; }
}