/* Theme tokens */
:root {
  --bg: #06070a;
  --panel: #0c0f15;
  --text: #e8f5ff;
  --muted: #8aa3b6;
  --brand: #00e5ff; /* neon cyan */
  --accent: #ff2fb9; /* neon magenta */
  --accent-2: #7b61ff; /* neon purple */
  --danger: #ff5c7a;
  --ring: rgba(0, 229, 255, 0.35);
  --grid: rgba(0, 229, 255, 0.06);
  --glow-c: rgba(0, 229, 255, 0.72);
  --glow-m: rgba(255, 47, 185, 0.62);
  --accent-soft: #ff6ac6; /* softer magenta for smoother blends */
  --site-bg-image: none; /* set via JS */

  --container: 1120px;
  --radius: 14px;
  --shadow: 0 10px 34px rgba(0,0,0,.55);
  --header-h: 72px;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}
body {
  margin: 0;
  font-family: "Noto Sans JP", system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji";
  color: var(--text);
  background:
    var(--site-bg-image),
    radial-gradient(1400px 900px at 70% -10%, rgba(0,229,255,.10), transparent),
    radial-gradient(1200px 800px at 10% -10%, rgba(255,47,185,.08), transparent),
    var(--bg);
  line-height: 1.6;
  padding-top: var(--header-h);
}

/* animated grid overlay */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    repeating-linear-gradient(
      to right,
      transparent 0 98px,
      var(--grid) 98px 100px
    ),
    repeating-linear-gradient(
      to bottom,
      transparent 0 98px,
      var(--grid) 98px 100px
    );
  mask-image: radial-gradient(1000px 700px at 60% -10%, #000 20%, transparent 70%);
  animation: gridShift 22s linear infinite;
}

/* Starfield overlay */
.starfield { position: fixed; inset: 0; width: 100%; height: 100%; pointer-events: none; z-index: 0; opacity: .35; mix-blend-mode: screen; }

/* ensure content layers above starfield */
.site-header, .hero, .section, .site-footer { position: relative; z-index: 1; }
.hero-inner { position: relative; z-index: 1; }

/* Section background images with starfield seams */
.section.has-bg::before, .hero.has-bg::before {
  content: "";
  position: absolute;
  left: 0; right: 0;
  top: 40px; bottom: 40px;
  background:
    var(--bg-img, none) center/cover no-repeat,
    radial-gradient(1000px 600px at 20% 10%, rgba(0,229,255,.12), transparent),
    radial-gradient(800px 500px at 80% 10%, rgba(255,47,185,.10), transparent);
  filter: saturate(0.92) brightness(0.98) contrast(0.98);
  border-radius: 12px;
  border: 1px solid rgba(0,229,255,0.16);
  box-shadow: 0 0 24px rgba(0,229,255,.08);
  pointer-events: none;
  z-index: -1;
  opacity: .28;
  animation: bgOpacityPulse 12s ease-in-out infinite alternate;
}

/* Contact background: fit image without excessive crop */
#contact.has-bg::before { background-size: contain, auto, auto; background-position: center; }

/* Hero background: stronger presence + electric tint */
.hero.has-bg::before {
  opacity: .5; /* 50% 指定 */
  animation: heroBgPulse 14s ease-in-out infinite alternate;
}

.hero.has-bg::after {
  content: "";
  position: absolute; left: 0; right: 0; top: 40px; bottom: 40px;
  pointer-events: none; z-index: -1; border-radius: 12px;
  mix-blend-mode: screen;
  /* 基本は緑の発光、ビーム＋スポットで質感付け */
  background:
    radial-gradient(60% 60% at 50% 45%, rgba(0, 255, 180, .22), transparent 70%),
    radial-gradient(40% 40% at 20% 70%, rgba(0, 255, 180, .14), transparent 72%),
    radial-gradient(50% 50% at 80% 30%, rgba(0, 255, 180, .16), transparent 72%);
  animation:
    glowGreen 12s ease-in-out infinite,
    redFlash 18s linear infinite;
}

@keyframes heroBgPulse {
  0% { opacity: .44; }
  100% { opacity: .56; }
}

@keyframes glowGreen {
  0%, 100% { filter: brightness(1.0) saturate(1.0); }
  50% { filter: brightness(1.06) saturate(1.08); }
}

/* たまに赤に切替（短時間） */
@keyframes redFlash {
  0%, 36%, 76%, 100% { filter: hue-rotate(0deg) saturate(1.0) brightness(1.0); }
  38%, 40% { filter: hue-rotate(135deg) saturate(1.25) brightness(1.1); }
  78%, 80% { filter: hue-rotate(135deg) saturate(1.25) brightness(1.1); }
}

@keyframes bgOpacityPulse {
  0% { opacity: .18; }
  100% { opacity: .38; }
}

@keyframes gridShift {
  from { transform: translate3d(0,0,0); }
  to { transform: translate3d(-100px, -100px, 0); }
}

img, video { max-width: 100%; display: block; }
a { color: var(--brand); text-decoration: none; }
a:hover { text-decoration: underline; }

.container {
  width: min(100% - 32px, var(--container));
  margin-inline: auto;
}

/* Header */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 50;
  background: rgba(6, 7, 10, 0.78);
  backdrop-filter: blur(12px) saturate(1.05);
  border-bottom: 1px solid transparent;
}
.site-header::after { content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 2px; background: linear-gradient(90deg, var(--accent), var(--brand), var(--accent-2)); box-shadow: 0 0 12px var(--glow-c), 0 0 18px var(--glow-m); opacity: .9; }
.header-inner { display: flex; align-items: center; justify-content: space-between; padding: 14px 0; }
.brand { font-weight: 700; letter-spacing: .8px; color: var(--text); font-family: Oxanium, "Noto Sans JP", sans-serif; text-transform: uppercase; text-shadow: 0 0 14px var(--glow-c), 0 0 26px var(--glow-m); }

.lang-switch { display: inline-flex; gap: 6px; margin-left: 16px; }
.lang-switch button { background: rgba(255,255,255,0.06); color: var(--text); border: 1px solid rgba(255,255,255,0.18); border-radius: 999px; padding: 6px 10px; cursor: pointer; font-size: 12px; transition: box-shadow .2s, filter .2s, background .2s; }
.lang-switch button:hover { border-color: var(--brand); box-shadow: 0 0 0 4px var(--ring); }
.lang-switch button[aria-pressed="true"] {
  background: linear-gradient(90deg, var(--accent-soft), var(--accent-2), var(--brand));
  color: #041218;
  box-shadow: 0 0 16px var(--glow-c), 0 0 24px var(--glow-m);
  border-color: transparent;
  filter: brightness(1.02) saturate(1.02);
}

.nav-toggle { display: none; background: none; border: 0; width: 44px; height: 44px; position: relative; }
.nav-toggle span { position: absolute; left: 10px; right: 10px; height: 2px; background: var(--text); border-radius: 2px; transition: .25s; }
.nav-toggle span:nth-child(1){ top: 14px; }
.nav-toggle span:nth-child(2){ top: 21px; }
.nav-toggle span:nth-child(3){ top: 28px; }

.menu { display: flex; gap: 20px; list-style: none; padding: 0; margin: 0; }
.menu a { color: var(--text); opacity: .9; padding: 8px 10px; border-radius: 8px; position: relative; }
.menu a::after { content: ""; position: absolute; left: 10px; right: 10px; bottom: 4px; height: 3px; background: linear-gradient(90deg,
    /* stronger purple mid-bands for smoother blend */
    var(--accent-soft) 0%, var(--accent-soft) 10%,
    var(--accent-2) 18%, var(--accent-2) 44%,
    var(--brand) 56%, var(--brand) 68%,
    var(--accent-2) 78%, var(--accent-2) 96%,
    var(--accent-soft) 100%
  ); background-size: 320% 100%; background-position: 0% 50%; animation: slideGradient 13.5s linear infinite; animation-delay: var(--gd-delay, 0s); opacity: .45; transform: scaleX(.85); transition: .25s; filter: saturate(0.92) blur(1px) drop-shadow(0 0 10px var(--brand)) drop-shadow(0 0 12px var(--accent-2)); will-change: background-position; }
.menu a:hover { text-decoration: none; }
.menu a:hover::after { opacity: 1; transform: scaleX(1); }

/* Hero */
.hero { position: relative; min-height: 68vh; display: grid; place-items: center; overflow: clip; scroll-margin-top: 80px; }
.hero-media { position: absolute; inset: 0; background: radial-gradient(1000px 600px at 20% 10%, rgba(0,229,255,.16), transparent), radial-gradient(800px 500px at 80% 10%, rgba(255,47,185,.12), transparent), linear-gradient(180deg, rgba(0,0,0,.1), rgba(0,0,0,.65)); filter: saturate(1.06) contrast(1.06); }
.hero::after { content: ""; position: absolute; inset: 0; pointer-events: none; background: repeating-linear-gradient(to bottom, rgba(255,255,255,.03) 0 2px, transparent 2px 4px); mix-blend-mode: overlay; opacity: .32; }
.hero-inner { text-align: center; padding: 80px 0; position: relative; z-index: 1; }
.hero h1 { font-size: clamp(34px, 6.5vw, 62px); letter-spacing: .08em; margin: 0 0 10px; font-family: Orbitron, Oxanium, "Noto Sans JP", sans-serif; font-weight: 800; text-transform: uppercase; background: linear-gradient(180deg, #fff, #b6f3ff); -webkit-background-clip: text; background-clip: text; color: transparent; text-shadow: 0 0 12px rgba(0,229,255,.45); position: relative; }
.hero h1 .em-first, .hero h1 .em-last { font-size: 2em; display: inline-block; line-height: 1; vertical-align: -0.18em; }
.hero h1 .txt { position: relative; z-index: 2; display: inline-block; }
.hero h1 .txt-back { position: absolute; inset: 0; z-index: 0; display: block; text-align: inherit; line-height: inherit; pointer-events: none; filter: blur(1.2px) saturate(0.92); transform: translate(2px, 2px) scale(1.02); -webkit-text-fill-color: transparent; background: linear-gradient(90deg, var(--accent-soft), var(--accent-2), var(--brand), var(--accent-2), var(--accent-soft)); background-size: 280% 100%; background-position: 0% 50%; animation: slideGradient 15.6s linear infinite; animation-delay: var(--gd-delay, 0s); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero p { font-size: clamp(16px, 2.2vw, 20px); color: var(--muted); margin: 0 0 20px; }
.hero #hero-subtitle { font-size: 24px; }
.hero-ctas { display: inline-flex; gap: 12px; flex-wrap: wrap; justify-content: center; }

.btn { background: linear-gradient(90deg,
    var(--accent-soft) 0%, var(--accent-soft) 8%,
    var(--accent-2) 22%, var(--accent-2) 48%,
    var(--brand) 60%, var(--brand) 72%,
    var(--accent-2) 82%, var(--accent-2) 96%,
    var(--accent-soft) 100%
  ); background-size: 320% 100%; background-position: 0% 50%; animation: slideGradient 10.1s linear infinite; animation-delay: var(--gd-delay, 0s); color: #041218; border: 0; padding: 12px 18px; border-radius: 999px; font-weight: 800; box-shadow: 0 0 22px var(--glow-c), 0 0 36px var(--glow-m); cursor: pointer; letter-spacing: .4px; text-transform: uppercase; font-family: Oxanium, "Noto Sans JP", sans-serif; will-change: background-position; filter: saturate(0.94) brightness(0.98); }
.btn:hover { filter: brightness(1.08) saturate(1.08); transform: translateY(-1px); box-shadow: 0 0 30px var(--glow-c), 0 0 46px var(--glow-m); animation-duration: 5.2s; }
.btn.secondary { background: transparent; color: var(--text); border: 1px solid rgba(0,229,255,.45); box-shadow: inset 0 0 20px rgba(0,229,255,.08); }
.btn.secondary:hover { border-color: var(--accent); box-shadow: inset 0 0 22px rgba(255,47,185,.1), 0 0 22px rgba(255,47,185,.2); }

/* Sections */
.section { padding: 104px 0; border-top: 1px solid rgba(255,255,255,0.06); background: transparent; scroll-margin-top: 80px; }
.section:nth-child(even) { background: linear-gradient(180deg, rgba(255,255,255,0.02), rgba(255,255,255,0)); }
.section-head { display: grid; gap: 10px; margin-bottom: 38px; }
.section-title { font-size: 24px; letter-spacing: 1px; margin: 0; text-transform: uppercase; font-family: Oxanium, "Noto Sans JP", sans-serif; position: relative; padding-bottom: 10px; }
.section-title::after { content: ""; position: absolute; left: 0; bottom: 0; width: 140px; height: 3px; background: linear-gradient(90deg,
    var(--accent-soft) 0%, var(--accent-soft) 10%,
    var(--accent-2) 24%, var(--accent-2) 52%,
    var(--brand) 62%, var(--brand) 72%,
    var(--accent-2) 82%, var(--accent-2) 96%,
    var(--accent-soft) 100%
  ); background-size: 320% 100%; background-position: 0% 50%; animation: slideGradient 17s linear infinite; animation-delay: var(--gd-delay, 0s); filter: saturate(0.92) blur(.9px) drop-shadow(0 0 10px var(--brand)) drop-shadow(0 0 12px var(--accent-2)); border-radius: 2px; will-change: background-position; }

/* Double-layer titles: gradient back layer */
.section-title, .hero h1 { position: relative; z-index: 1; }
.section-title::before, .hero h1::before {
  content: attr(data-text);
  position: absolute; inset: 0 auto auto 0;
  transform: translate(2px, 2px) scale(1.02);
  z-index: -1;
  background: linear-gradient(90deg, var(--accent-soft), var(--accent-2), var(--brand), var(--accent-2), var(--accent-soft));
  background-size: 280% 100%;
  background-position: 0% 50%;
  -webkit-background-clip: text; background-clip: text; color: transparent;
  filter: blur(1.2px) saturate(0.92);
  opacity: .7;
  animation: slideGradient 15.6s linear infinite; animation-delay: var(--gd-delay, 0s);
  pointer-events: none;
}

/* Use custom back layer for hero title instead of ::before */
.hero h1::before { content: none; }

@keyframes slideGradient {
  0% { background-position: 0% 50%; }
  100% { background-position: 200% 50%; }
}
.hero h1::after { content: none; }

/* Electric glitch activation */
.hero h1.glitch { 
  animation: glitchJitter 220ms steps(3, end) 0s 1; 
  filter: brightness(1.12) saturate(1.15);
}
.hero h1.glitch .txt-back {
  opacity: .95;
  /* stronger burst: shift + beam scan left->right */
  animation: glitchShift 260ms steps(3, end) 0s 1, electricScan 320ms ease-out 0s 1;
  color: transparent;
  background:
    /* moving beam */
    linear-gradient(90deg,
      rgba(255,255,255,0) 0%,
      rgba(122, 244, 255, .18) 10%,
      rgba(122, 244, 255, .35) 14%,
      rgba(255, 106, 198, .30) 18%,
      rgba(255,255,255,0) 28%
    ),
    /* static fine stripes */
    repeating-linear-gradient(-45deg,
      var(--brand) 0 2px,
      transparent 2px 4px,
      var(--accent-soft) 4px 6px,
      transparent 6px 8px
    );
  background-size: 200% 100%, 100% 100%;
  background-position: -150% 50%, 0% 50%;
  -webkit-background-clip: text; background-clip: text;
  text-shadow: -2px 0 var(--brand), 2px 0 var(--accent-soft), 0 0 12px var(--brand), 0 0 16px var(--accent-2);
  will-change: background-position, clip-path, transform, filter;
}

@keyframes glitchJitter {
  0% { transform: translate(0,0) skewX(0deg); text-shadow: -2px 0 var(--brand), 2px 0 var(--accent-soft); }
  33% { transform: translate(2px,-2px) skewX(1deg); text-shadow: -4px 0 var(--brand), 4px 0 var(--accent-soft); }
  66% { transform: translate(-2px,1px) skewX(-1deg); text-shadow: -3px 0 var(--brand), 3px 0 var(--accent-soft); }
  100% { transform: translate(0,0) skewX(0deg); text-shadow: -2px 0 var(--brand), 2px 0 var(--accent-soft); }
}
@keyframes glitchShift {
  0% { clip-path: inset(0 0 70% 0); transform: translate(-2px, 1px) skewX(1deg); filter: hue-rotate(12deg) saturate(1.2) brightness(1.1); }
  33% { clip-path: inset(25% 0 35% 0); transform: translate(3px, -2px) skewX(-1deg); filter: hue-rotate(-14deg) saturate(1.25) brightness(1.08); }
  66% { clip-path: inset(60% 0 5% 0); transform: translate(-2px, 2px) skewX(1deg); filter: hue-rotate(8deg) saturate(1.2) brightness(1.1); }
  100% { clip-path: inset(0 0 0 0); transform: translate(0,0) skewX(0deg); }
}
@keyframes electricScan {
  0% { background-position: -150% 50%, 0% 50%; }
  100% { background-position: 150% 50%, 0% 50%; }
}
.section-subtitle { color: var(--muted); margin: 0; }

/* About */
.about-grid { display: grid; grid-template-columns: 1.2fr .8fr; gap: 24px; }
.about-text { background: radial-gradient(600px 400px at 10% 0%, rgba(123,97,255,.18), transparent), var(--panel); border: 1px solid rgba(0,229,255,0.22); border-radius: var(--radius); padding: 20px; box-shadow: 0 0 28px rgba(0,229,255,.12); }
.about-facts { display: grid; gap: 10px; }
.fact { background: rgba(0,229,255,0.08); border: 1px solid rgba(0,229,255,0.22); padding: 14px; border-radius: 12px; box-shadow: inset 0 0 20px rgba(0,229,255,.12); }

/* Lists */
.news-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 12px; }
.news-item { display: grid; grid-template-columns: 120px 1fr; gap: 16px; align-items: start; background: var(--panel); border: 1px solid rgba(0,229,255,0.22); border-radius: var(--radius); padding: 14px; box-shadow: 0 0 22px rgba(0,229,255,.1); }
.news-date { color: var(--muted); font-variant-numeric: tabular-nums; white-space: nowrap; }
.news-title { margin: 0; }

/* Cards */
.card-grid { display: grid; grid-template-columns: repeat(12, 1fr); gap: 16px; }
.artists .card-grid, .works .card-grid {
  /* Horizontal slideable rows for growing lists */
  grid-template-columns: none;
  grid-auto-flow: column;
  grid-auto-columns: minmax(280px, 360px);
  overflow-x: auto;
  overscroll-behavior-x: contain;
  -webkit-overflow-scrolling: touch;
  scroll-snap-type: x proximity;
  padding-bottom: 18px; /* leave room for custom scrollbar */
  position: relative;
}
.artists .card, .works .card { grid-column: auto !important; scroll-snap-align: start; }

/* Cyberpunk gradient scrollbars for horizontal grids */
.artists .card-grid, .works .card-grid { scrollbar-width: none; scrollbar-color: transparent transparent; }
.artists .card-grid::-webkit-scrollbar, .works .card-grid::-webkit-scrollbar { height: 0px; background: transparent; }
.artists .card-grid::-webkit-scrollbar-track, .works .card-grid::-webkit-scrollbar-track { background: transparent; }
.artists .card-grid::-webkit-scrollbar-thumb, .works .card-grid::-webkit-scrollbar-thumb { background: transparent; }
.artists .card-grid::-webkit-scrollbar-corner, .works .card-grid::-webkit-scrollbar-corner { background: transparent; }

@keyframes scrollGlow { 0% { background-position: 0% 50%; } 100% { background-position: 200% 50%; } }
@keyframes slideRail { 0% { background-position: -200% 50%; } 100% { background-position: 200% 50%; } }

/* Custom functional horizontal scrollbar (overlay) */
.hs-rail { position: absolute; left: 30px; right: 30px; bottom: 0; height: 10px; border-radius: 999px; background:
  linear-gradient(90deg, var(--accent-soft), var(--accent-2), var(--brand), var(--accent-2), var(--accent-soft));
  background-size: 300% 100%; animation: slideRail 12s linear infinite; box-shadow: inset 0 0 10px rgba(0,229,255,.18), inset 0 0 16px rgba(255,47,185,.14); opacity: .4; z-index: 9;
}
.hs-thumb { position: absolute; bottom: 0; height: 10px; border-radius: 999px; cursor: pointer; background:
  linear-gradient(90deg, var(--brand), var(--accent-2), var(--accent-soft));
  background-size: 300% 100%; animation: slideRail 8s linear infinite; box-shadow: 0 0 12px var(--glow-c), 0 0 18px var(--glow-m); border: 2px solid rgba(4,18,24,.85); z-index: 10;
}
.hs-dragging .hs-thumb { filter: brightness(1.15) saturate(1.12); }
.card { grid-column: span 4; background: rgba(12, 15, 21, 0.7); border: 1px solid rgba(0,229,255,0.22); border-radius: var(--radius); overflow: clip; position: relative; transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
  display: flex; flex-direction: column; box-shadow: 0 0 24px rgba(0,229,255,.12); }
.card::before { content: ""; position: absolute; inset: 0; pointer-events: none; background: linear-gradient(135deg, rgba(255,47,185,.18), rgba(0,229,255,.18)); opacity: .06; }
.card:hover { transform: translateY(-3px); border-color: rgba(255,47,185,0.4); box-shadow: 0 0 32px rgba(255,47,185,.18), 0 0 36px rgba(0,229,255,.16); }
.card-media { aspect-ratio: 16/9; background: #0d0f14; display: grid; place-items: center; color: var(--muted); position: relative; overflow: hidden; }
.artists .card-media, .works .card-media { aspect-ratio: auto; }
.card-media img { width: 100%; height: auto; object-fit: contain; object-position: center; display: block; }
.artists .card-media img, .works .card-media img { height: auto; }
.card-body { padding: 14px; display: grid; gap: 6px; }
.card-title { margin: 0; font-size: 16px; }
.card-meta { color: var(--muted); font-size: 12px; }
.chip-row { display: flex; gap: 8px; flex-wrap: wrap; }
.card-tags { padding: 0 14px 14px; }
/* keep natural height; no forced min-height for tags */
.chip { font-size: 12px; padding: 4px 8px; border-radius: 999px; background: rgba(0,229,255,0.1); border: 1px solid rgba(0,229,255,0.25); }
.card-actions { display: flex; gap: 10px; padding: 0 14px 14px; margin-top: 8px; }
.card-actions { flex-wrap: wrap; }
.card-actions .btn {
  box-shadow: none;
  padding: 8px 12px;
  font-size: 12px;
  line-height: 1.2;
}

/* Embedded player block (e.g., Spotify) */
.card-player { margin: 0 14px 14px; border-radius: 12px; overflow: hidden; background: rgba(0,229,255,0.06); border: 1px solid rgba(0,229,255,0.22); box-shadow: inset 0 0 18px rgba(0,229,255,.08); }
.card-player iframe { display: block; width: 100%; height: 352px; border: 0; }

/* Media overlay badge */
.card-badge {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  pointer-events: none;
  color: #fff;
  font-weight: 800;
  font-size: clamp(12px, 2.6vw, 22px);
  letter-spacing: .04em;
  text-shadow: 0 0 8px rgba(0,0,0,.6), 0 0 16px rgba(0,0,0,.6);
  background: linear-gradient(180deg, rgba(0,0,0,.10), rgba(0,0,0,.28));
}

/* Video */
.video-wrap { position: relative; border-radius: var(--radius); overflow: clip; background: #0d0f14; border: 1px solid rgba(0,229,255,0.26); box-shadow: 0 0 30px rgba(0,229,255,.16); }
.video-wrap::before { content: ""; display: block; padding-top: 56.25%; }
.video-wrap iframe, .video-wrap video { position: absolute; inset: 0; width: 100%; height: 100%; }

/* Contact */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.contact-grid.single { grid-template-columns: 1fr; }
.contact-grid.split { grid-template-columns: 1.2fr 1fr; align-items: stretch; }
.contact-grid.split.expanded { grid-template-columns: 1fr; }
.contact-actions { display: grid; gap: 10px; }
.contact-actions a { display: inline-flex; align-items: center; gap: 10px; padding: 12px 14px; border-radius: 12px; background: rgba(0,229,255,0.08); border: 1px solid rgba(0,229,255,0.22); color: var(--text); text-decoration: none; box-shadow: inset 0 0 22px rgba(0,229,255,.1); }
.contact-actions a:hover { box-shadow: inset 0 0 24px rgba(0,229,255,.14), 0 0 20px var(--glow-c), 0 0 26px var(--glow-m); border-color: rgba(255,47,185,.35); }

.contact-form { background: rgba(12, 15, 21, 0.72); border: 1px solid rgba(0,229,255,0.22); border-radius: var(--radius); padding: 16px; box-shadow: 0 0 24px rgba(0,229,255,.12); }
.contact-embed { background:
  var(--bg-img, none) center/cover no-repeat;
  border: 1px solid rgba(0,229,255,0.22); border-radius: var(--radius); overflow: hidden; box-shadow: 0 0 24px rgba(0,229,255,.12); padding: 0; display: block; width: 100%; max-width: 860px; margin-inline: auto; }
.contact-embed iframe { display: block; width: 100%; border: 0; }

/* Collapsible contact form card */
.contact-embed.collapse-card { padding: 0; overflow: visible; }
.contact-grid.split.expanded .contact-embed.collapse-card { max-width: 820px; margin-inline: auto; transform: scale(1.02); transition: transform .35s ease; }
.collapse-head { width: 100%; display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 14px 16px; background: rgba(0,229,255,0.06); border-bottom: 1px solid rgba(0,229,255,0.22); cursor: pointer; color: var(--text); font-weight: 700; letter-spacing: .5px; text-transform: uppercase; }
.collapse-head .chev { width: 10px; height: 10px; border-right: 2px solid var(--text); border-bottom: 2px solid var(--text); transform: rotate(-45deg); transition: transform .25s ease; opacity: .8; }
.collapse-card.open .collapse-head .chev { transform: rotate(45deg); }
.collapse-body { overflow: hidden; max-height: 0; transition: max-height .35s ease; }
.collapse-body-inner { padding: 12px; background: transparent; border: 0; box-shadow: none; }

/* removed decorative .contact-bg; background now fills collapse-body-inner */
.collapse-body-inner iframe { background: transparent; }

@media (max-width: 640px) {
  .collapse-body-inner { padding: 10px; border-color: rgba(0,229,255,0.35); box-shadow: inset 0 0 24px rgba(0,229,255,.16), 0 0 28px rgba(255,47,185,.22); }
}

/* Contact left visual pane */
.contact-visual { border-radius: var(--radius); border: 1px solid rgba(0,229,255,0.22); background:
  var(--bg-img, none) center/cover no-repeat,
  radial-gradient(600px 400px at 20% 20%, rgba(0,229,255,.12), transparent),
  radial-gradient(500px 300px at 80% 20%, rgba(255,47,185,.10), transparent);
  min-height: 320px; box-shadow: 0 0 30px rgba(0,229,255,.14);
  transition: transform .5s ease, opacity .5s ease; position: relative;
}
.contact-grid.split.expanded .contact-visual { transform: scale(1.06); opacity: .9; }
.form-row { display: grid; gap: 6px; margin-bottom: 12px; }
label { color: var(--muted); font-size: 13px; }
input, textarea { background: rgba(255,255,255,0.06); border: 1px solid rgba(255,255,255,0.14); color: var(--text); padding: 10px 12px; border-radius: 10px; outline: none; }
input:focus, textarea:focus { border-color: var(--brand); box-shadow: 0 0 0 6px var(--ring); }
.form-note { color: var(--muted); font-size: 12px; margin: 8px 0 0; }

/* Footer */
.site-footer { padding: 40px 0; border-top: 1px solid transparent; background: linear-gradient(180deg, rgba(123,97,255,.06), transparent 22%); position: relative; }
.site-footer::before { content: ""; position: absolute; left: 0; right: 0; top: 0; height: 2px; background: linear-gradient(90deg, var(--accent), var(--brand), var(--accent-2)); box-shadow: 0 0 12px var(--glow-c), 0 0 18px var(--glow-m); opacity: .9; }
.footer-inner { display: grid; gap: 10px; }
.social { display: flex; gap: 12px; list-style: none; padding: 0; margin: 0; flex-wrap: wrap; }
.social a { display: inline-flex; align-items: center; gap: 8px; padding: 8px 12px; border-radius: 999px; background: rgba(0,229,255,0.08); border: 1px solid rgba(0,229,255,0.26); color: var(--text); text-decoration: none; box-shadow: inset 0 0 18px rgba(0,229,255,.08); }
.social a:hover { border-color: rgba(255,47,185,.4); box-shadow: inset 0 0 20px rgba(0,229,255,.12), 0 0 18px var(--glow-c), 0 0 24px var(--glow-m); }

/* Hero platform logos */
.platform-logos { margin-top: 14px; display: flex; gap: 18px; justify-content: center; align-items: center; flex-wrap: wrap; }
/* Uniform icon hit-area */
.platform-logos a { display: inline-flex; align-items: center; justify-content: center; width: 44px; height: 44px; padding: 0; border-radius: 12px; background: transparent; border: 0; position: relative; }
/* Icon: unify visual size with padded white background */
.platform-logos img {
  width: 28px; height: 28px; object-fit: contain; display: block;
  padding: 6px; border-radius: 8px;
  background: #fff; /* fully opaque for maximum contrast */
  box-shadow: inset 0 0 0 1px rgba(255,255,255,0.55), 0 0 6px rgba(0,229,255,.18);
  filter: drop-shadow(0 6px 14px rgba(0,0,0,.35)) drop-shadow(0 1px 2px rgba(0,0,0,.25));
}

/* Hover label under icons (uses data-label) */
.platform-logos a::after {
  content: attr(data-label);
  position: absolute;
  left: 50%;
  top: calc(100% + 6px);
  transform: translateX(-50%) translateY(4px);
  opacity: 0;
  pointer-events: none;
  padding: 2px 8px;
  border-radius: 8px;
  font-size: 11px;
  font-weight: 700;
  line-height: 1.3;
  color: var(--text);
  background: rgba(6,7,10,0.20);
  border: 1px solid rgba(255,255,255,0.18);
  text-shadow: 0 1px 1px rgba(0,0,0,.65);
  box-shadow: 0 2px 10px rgba(0,0,0,.35), 0 0 10px rgba(0,229,255,.14);
  white-space: nowrap;
  letter-spacing: .2px;
  font-family: "Oxanium", "Noto Sans JP", system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
  transition: opacity .18s ease, transform .18s ease;
}

.platform-logos a:hover::after,
.platform-logos a:focus-visible::after {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.platform-logos a:hover img,
.platform-logos a:focus-visible img {
  box-shadow: inset 0 0 0 1px rgba(255,255,255,0.8), 0 0 16px var(--glow-c), 0 0 24px var(--glow-m);
}


/* Utilities */
.hide { display: none !important; }

/* Responsive */
@media (max-width: 920px) {
  .about-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .card { grid-column: span 6; }
  .section { padding: 84px 0; scroll-margin-top: 72px; }
}

@media (max-width: 640px) {
  .menu { display: none; position: absolute; right: 16px; top: 58px; background: rgba(11,11,15,.95); border: 1px solid rgba(255,255,255,0.08); border-radius: 12px; padding: 10px; flex-direction: column; gap: 6px; box-shadow: var(--shadow); }
  .nav-toggle { display: inline-block; }
  .menu.open { display: flex; }
  .card { grid-column: 1 / -1; }
  .news-item { grid-template-columns: 1fr; }
  .section { padding: 64px 0; scroll-margin-top: 64px; }
}