:root {
  --bg-0: #07080c;
  --bg-1: #0b0d15;
  --bg-2: #11131e;
  --ink: #f4efe6;
  --ink-dim: #b7b1a3;
  --ink-muted: #7a7568;
  --line: rgba(244, 239, 230, 0.10);
  --line-strong: rgba(244, 239, 230, 0.22);

  /* warm brass accent — spiritual / traditional */
  --brass: #d4a93a;
  --brass-soft: #f0cf6e;
  --brass-deep: #8f6f1a;

  /* deep crimson / vermilion nod to 神社 / traditional */
  --crimson: #b14a3b;

  --ff-disp: 'Shippori Mincho', 'Noto Serif JP', serif;
  --ff-sans: 'Noto Sans JP', system-ui, sans-serif;
  --ff-acc: 'Zen Kaku Gothic New', 'Noto Sans JP', sans-serif;
  --ff-latin: 'Cormorant Garamond', serif;
  --ff-mono: 'JetBrains Mono', ui-monospace, monospace;

  --shell: 1240px;
  --radius: 14px;
  --ease: cubic-bezier(.2, .7, .2, 1);
  color-scheme: dark;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 90px;
  overflow-x: clip;
}

body {
  margin: 0;
  background: var(--bg-0);
  color: var(--ink);
  font-family: var(--ff-sans);
  font-weight: 400;
  font-size: 16px;
  line-height: 1.85;
  letter-spacing: 0.01em;
  overflow-x: clip;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: inherit;
  text-decoration: none;
}

p {
  margin: 0;
  color: var(--ink-dim);
}

p+p {
  margin-top: .9rem;
}

h1,
h2,
h3,
h4 {
  margin: 0;
  color: var(--ink);
  font-weight: 700;
  letter-spacing: 0.02em;
}

strong {
  color: var(--ink);
  font-weight: 700;
}

small {
  color: var(--ink-muted);
  font-size: .84em;
  line-height: 1.7;
}

ruby rt {
  font-size: .55em;
  color: var(--ink-muted);
  font-weight: 400;
  letter-spacing: 0;
}

::selection {
  background: var(--brass);
  color: var(--bg-0);
}

/* ===== WebGL cosmic canvas (base layer) ===== */
#webgl-cosmos {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100svh;
  z-index: 0;
  pointer-events: none;
  display: block;
  background: #05060a;
}

/* ===== Ambient overlay on top of WebGL ===== */
.cosmos {
  position: fixed;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  overflow: hidden;
  background:
    radial-gradient(1200px 700px at 12% -10%, rgba(212, 169, 58, 0.10), transparent 60%),
    radial-gradient(900px 600px at 92% 15%, rgba(177, 74, 59, 0.08), transparent 60%),
    radial-gradient(60% 60% at 50% 50%, transparent 0%, rgba(5, 6, 10, 0.35) 80%, rgba(5, 6, 10, 0.55) 100%);
}

.cosmos::before {
  content: '';
  position: absolute;
  inset: -50%;
  background-image:
    radial-gradient(1px 1px at 20% 30%, rgba(255, 255, 255, .7), transparent 50%),
    radial-gradient(1px 1px at 67% 18%, rgba(255, 255, 255, .55), transparent 50%),
    radial-gradient(1.2px 1.2px at 82% 74%, rgba(255, 255, 255, .6), transparent 50%),
    radial-gradient(1px 1px at 38% 82%, rgba(255, 255, 255, .45), transparent 50%),
    radial-gradient(1.5px 1.5px at 10% 55%, rgba(240, 207, 110, .7), transparent 50%),
    radial-gradient(1px 1px at 55% 48%, rgba(255, 255, 255, .5), transparent 50%),
    radial-gradient(1px 1px at 90% 40%, rgba(255, 255, 255, .4), transparent 50%),
    radial-gradient(2px 2px at 30% 12%, rgba(255, 255, 255, .55), transparent 50%);
  background-size: 520px 520px, 700px 700px, 600px 600px, 540px 540px, 800px 800px, 480px 480px, 720px 720px, 900px 900px;
  animation: drift 120s linear infinite;
  opacity: .7;
}

.cosmos::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='180' height='180'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 1  0 0 0 0 1  0 0 0 0 1  0 0 0 .06 0'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>");
  opacity: .6;
  mix-blend-mode: overlay;
}

@keyframes drift {
  from {
    transform: translate3d(0, 0, 0);
  }

  to {
    transform: translate3d(-240px, -180px, 0);
  }
}

main,
footer,
header {
  position: relative;
  z-index: 2;
}

/* ===== Header ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px clamp(18px, 4vw, 40px);
  background: linear-gradient(180deg, rgba(7, 8, 12, 0.86), rgba(7, 8, 12, 0.55) 70%, transparent);
  backdrop-filter: blur(14px) saturate(120%);
  -webkit-backdrop-filter: blur(14px) saturate(120%);
  border-bottom: 1px solid transparent;
  transition: border-color .3s var(--ease), background .3s var(--ease);
}

.site-header.scrolled {
  background: rgba(7, 8, 12, .88);
  border-bottom-color: var(--line);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: var(--ff-disp);
  font-weight: 700;
  font-size: 15px;
  letter-spacing: .08em;
}

.brand-mark {
  width: 32px;
  height: 32px;
  position: relative;
  display: grid;
  place-items: center;
}

.brand-mark::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 1px solid var(--brass);
  background: radial-gradient(circle at 30% 30%, rgba(240, 207, 110, .35), transparent 55%);
}

.brand-mark::after {
  content: 'ム';
  position: relative;
  font-family: var(--ff-disp);
  font-size: 14px;
  color: var(--brass-soft);
  font-weight: 700;
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.brand-text .ja {
  font-size: 14px;
  color: var(--ink);
}

.brand-text .en {
  font-family: var(--ff-latin);
  font-style: italic;
  font-size: 11px;
  color: var(--ink-muted);
  letter-spacing: .18em;
}

.nav-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: clamp(14px, 2.4vw, 34px);
  align-items: center;
}

.nav-list a {
  position: relative;
  font-family: var(--ff-acc);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: .2em;
  color: var(--ink-dim);
  padding: 6px 2px;
  transition: color .2s var(--ease);
}

.nav-list a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  height: 1px;
  width: 0;
  background: var(--brass);
  transition: width .3s var(--ease);
}

.nav-list a:hover,
.nav-list a.active {
  color: var(--ink);
}

.nav-list a.active::after {
  width: 100%;
}

.nav-cta {
  margin-left: 8px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 16px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  font-family: var(--ff-acc);
  font-size: 11px;
  letter-spacing: .2em;
  font-weight: 700;
  color: var(--ink);
  transition: all .25s var(--ease);
}

.nav-cta:hover {
  background: var(--brass);
  color: var(--bg-0);
  border-color: var(--brass);
}

.nav-cta svg {
  width: 12px;
  height: 12px;
}

.hamburger {
  display: none;
}

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 100svh;
  display: grid;
  grid-template-columns: 1fr;
  align-items: center;
  overflow: clip;
  padding: 140px clamp(18px, 5vw, 60px) 80px;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
}

.hero-bg img,
.hero-bg video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: blur(10px) brightness(.42) saturate(115%);
  transform: scale(1.1);
}

.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(60% 60% at 50% 60%, transparent 0%, rgba(7, 8, 12, .55) 60%, rgba(7, 8, 12, .92) 100%),
    linear-gradient(180deg, rgba(7, 8, 12, .55), transparent 30%, transparent 70%, var(--bg-0));
}

.hero-inner {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: var(--shell);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  gap: clamp(32px, 6vw, 80px);
  align-items: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  font-family: var(--ff-acc);
  font-size: 11px;
  letter-spacing: .28em;
  font-weight: 700;
  color: var(--brass-soft);
  text-transform: uppercase;
  margin-bottom: 28px;
}

.eyebrow::before {
  content: '';
  width: 42px;
  height: 1px;
  background: var(--brass);
}

.eyebrow .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--crimson);
  box-shadow: 0 0 12px rgba(177, 74, 59, .9);
}

.main-title {
  font-family: var(--ff-disp);
  font-weight: 600;
  font-size: clamp(2.4rem, 6.2vw, 5.2rem);
  line-height: 1.12;
  letter-spacing: 0.04em;
  color: var(--ink);
}

.main-title .en {
  display: block;
  font-family: var(--ff-latin);
  font-style: italic;
  font-weight: 400;
  font-size: .3em;
  color: var(--ink-muted);
  letter-spacing: .12em;
  margin-top: 14px;
}

.main-title .line-a {
  display: inline-block;
  background: linear-gradient(180deg, var(--ink) 0%, #d9d3c4 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.main-title .accent {
  color: var(--brass-soft);
  background: linear-gradient(180deg, var(--brass-soft), var(--brass));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-copy {
  margin-top: 36px;
  max-width: 520px;
  color: var(--ink-dim);
  font-size: 15px;
  line-height: 1.95;
}

.hero-copy strong {
  color: var(--ink);
  font-weight: 500;
}

.hero-cta-row {
  margin-top: 40px;
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 15px 26px 15px 22px;
  background: var(--brass);
  color: #1a1406;
  border-radius: 999px;
  font-family: var(--ff-acc);
  font-weight: 700;
  font-size: 13px;
  letter-spacing: .14em;
  border: 1px solid var(--brass);
  box-shadow: 0 12px 40px -12px rgba(212, 169, 58, .5);
  transition: all .3s var(--ease);
}

.btn-primary:hover {
  background: var(--brass-soft);
  border-color: var(--brass-soft);
  transform: translateY(-2px);
  box-shadow: 0 18px 48px -12px rgba(240, 207, 110, .55);
}

.btn-primary .yt {
  width: 20px;
  height: 20px;
  display: grid;
  place-items: center;
}

.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 22px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  color: var(--ink);
  font-family: var(--ff-acc);
  font-weight: 600;
  font-size: 13px;
  letter-spacing: .14em;
  transition: all .3s var(--ease);
}

.btn-ghost:hover {
  border-color: var(--brass);
  color: var(--brass-soft);
}

/* Hero album art panel */
.hero-art {
  position: relative;
  justify-self: end;
  width: 100%;
  max-width: 460px;
  aspect-ratio: 1;
  border-radius: 6px;
  overflow: hidden;
  box-shadow: 0 40px 80px -20px rgba(0, 0, 0, .7),
    0 0 0 1px rgba(255, 255, 255, .06) inset;
}

.hero-art img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scale(1.02);
}

.hero-art::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(160deg, transparent 55%, rgba(0, 0, 0, .4));
  pointer-events: none;
}

.hero-art .vinyl {
  position: absolute;
  right: -44%;
  top: 50%;
  transform: translateY(-50%);
  width: 90%;
  aspect-ratio: 1;
  border-radius: 50%;
  background:
    radial-gradient(circle, #0a0a0a 0%, #0a0a0a 22%, transparent 22.5%),
    repeating-radial-gradient(circle, #111 0 1px, #0a0a0a 1px 3px),
    radial-gradient(circle, #1a1a1a 30%, #050505 100%);
  box-shadow: 0 20px 40px rgba(0, 0, 0, .6), inset 0 0 40px rgba(0, 0, 0, .8);
  animation: spin 22s linear infinite;
  z-index: -1;
}

.hero-art .vinyl::before {
  content: '';
  position: absolute;
  inset: 38%;
  border-radius: 50%;
  background: radial-gradient(circle, var(--brass) 0%, var(--brass-deep) 80%);
  box-shadow: inset 0 0 6px rgba(0, 0, 0, .6);
}

.hero-art .vinyl::after {
  content: '';
  position: absolute;
  inset: 47%;
  border-radius: 50%;
  background: var(--bg-0);
}

@keyframes spin {
  to {
    transform: translateY(-50%) rotate(360deg);
  }
}

.hero-meta {
  position: absolute;
  bottom: 48px;
  left: clamp(18px, 5vw, 60px);
  z-index: 3;
  display: flex;
  gap: 40px;
  align-items: flex-end;
  font-family: var(--ff-acc);
  font-size: 11px;
  letter-spacing: .22em;
  color: var(--ink-muted);
  text-transform: uppercase;
}

.hero-meta strong {
  color: var(--ink);
  display: block;
  font-size: 13px;
  letter-spacing: .12em;
  margin-top: 6px;
}

.scroll-cue {
  position: absolute;
  bottom: 28px;
  right: clamp(18px, 5vw, 60px);
  font-family: var(--ff-acc);
  font-size: 10px;
  letter-spacing: .28em;
  color: var(--ink-muted);
  display: flex;
  align-items: center;
  gap: 12px;
  writing-mode: vertical-rl;
  z-index: 3;
}

.scroll-cue .bar {
  width: 1px;
  height: 44px;
  background: linear-gradient(180deg, var(--brass), transparent);
  position: relative;
}

.scroll-cue .bar::before {
  content: '';
  position: absolute;
  left: -2px;
  top: 0;
  width: 5px;
  height: 5px;
  background: var(--brass);
  border-radius: 50%;
  animation: slide 2.2s ease-in-out infinite;
}

@keyframes slide {
  0% {
    top: 0;
    opacity: 1;
  }

  70% {
    top: 40px;
    opacity: 0;
  }

  100% {
    top: 40px;
    opacity: 0;
  }
}

/* ===== Shell ===== */
.shell {
  width: min(100% - 36px, var(--shell));
  margin-inline: auto;
}

section {
  padding-block: clamp(80px, 10vh, 140px);
  position: relative;
}

.section-head {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 24px;
  align-items: end;
  margin-bottom: clamp(40px, 6vh, 70px);
  padding-bottom: 24px;
  border-bottom: 1px solid var(--line);
}

.section-label {
  display: flex;
  align-items: center;
  gap: 14px;
  font-family: var(--ff-acc);
  font-size: 11px;
  letter-spacing: .32em;
  font-weight: 700;
  color: var(--brass-soft);
  text-transform: uppercase;
  margin-bottom: 18px;
}

.section-label .num {
  font-family: var(--ff-latin);
  font-style: italic;
  font-size: 14px;
  color: var(--ink-muted);
  letter-spacing: .05em;
}

.section-label .bar {
  width: 28px;
  height: 1px;
  background: var(--brass);
}

.section-title {
  font-family: var(--ff-disp);
  font-weight: 600;
  font-size: clamp(1.8rem, 3.6vw, 2.8rem);
  line-height: 1.2;
  letter-spacing: .04em;
  color: var(--ink);
}

.section-title .en {
  display: block;
  font-family: var(--ff-latin);
  font-style: italic;
  font-weight: 400;
  font-size: .42em;
  color: var(--ink-muted);
  letter-spacing: .1em;
  margin-top: 8px;
}

.section-kicker {
  justify-self: end;
  font-family: var(--ff-acc);
  font-size: 12px;
  color: var(--ink-muted);
  letter-spacing: .12em;
  max-width: 280px;
  text-align: right;
  line-height: 1.7;
}

/* ===== Album Liner Notes ===== */
.album-liner {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: clamp(36px, 6vw, 80px);
  align-items: start;
  padding: clamp(32px, 5vw, 60px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    linear-gradient(145deg, rgba(17, 19, 30, .72), rgba(11, 13, 21, .5));
  backdrop-filter: blur(18px) saturate(130%);
  -webkit-backdrop-filter: blur(18px) saturate(130%);
  position: relative;
  overflow: hidden;
}

.album-liner::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--brass), transparent);
}

.album-liner::after {
  content: '無限寿経';
  position: absolute;
  right: -10px;
  bottom: -30px;
  font-family: var(--ff-disp);
  font-size: 180px;
  font-weight: 700;
  color: rgba(212, 169, 58, .03);
  letter-spacing: .1em;
  pointer-events: none;
}

.liner-meta {
  display: grid;
  gap: 18px;
  font-family: var(--ff-acc);
  font-size: 12px;
  letter-spacing: .08em;
}

.liner-meta-row {
  display: grid;
  grid-template-columns: 100px 1fr;
  gap: 12px;
  padding-block: 10px;
  border-top: 1px solid var(--line);
}

.liner-meta-row:first-of-type {
  border-top: none;
  padding-top: 0;
}

.liner-meta-row .k {
  color: var(--ink-muted);
  text-transform: uppercase;
  font-size: 10px;
  letter-spacing: .2em;
  padding-top: 3px;
}

.liner-meta-row .v {
  color: var(--ink);
  font-size: 13px;
  line-height: 1.7;
}

.liner-meta-row .v em {
  font-family: var(--ff-latin);
  font-style: italic;
  color: var(--ink-dim);
}

.liner-body h3 {
  font-family: var(--ff-disp);
  font-size: clamp(1.3rem, 2.4vw, 1.7rem);
  font-weight: 600;
  letter-spacing: .04em;
  line-height: 1.5;
  margin-bottom: 18px;
}

.liner-body h3 .accent {
  color: var(--brass-soft);
}

.liner-body p {
  font-size: 14.5px;
  line-height: 2;
}

.pull-quote {
  margin-top: 28px;
  padding: 18px 22px;
  border-left: 2px solid var(--brass);
  font-family: var(--ff-disp);
  color: var(--ink);
  font-size: 15px;
  line-height: 1.9;
  background: linear-gradient(90deg, rgba(212, 169, 58, .05), transparent);
}

/* ===== MUSIC tracklist ===== */
.track-list {
  display: grid;
  gap: clamp(36px, 5vw, 56px);
}

.track {
  display: grid;
  grid-template-columns: 80px 1.1fr 1.4fr;
  gap: clamp(20px, 3vw, 48px);
  align-items: start;
  padding-bottom: clamp(36px, 5vw, 56px);
  border-bottom: 1px solid var(--line);
  position: relative;
}

.track:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.track-num {
  font-family: var(--ff-latin);
  font-style: italic;
  font-size: clamp(2.6rem, 4.5vw, 4rem);
  font-weight: 400;
  color: var(--ink-muted);
  line-height: 1;
  letter-spacing: -.02em;
  position: sticky;
  top: 110px;
}

.track-num .slash {
  color: var(--brass);
  font-style: normal;
  display: block;
  font-size: .3em;
  margin-top: 6px;
  letter-spacing: .2em;
}

.track-thumb {
  position: relative;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  border-radius: 6px;
  border: 1px solid var(--line-strong);
  cursor: pointer;
  background: var(--bg-2);
}

.track-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .9s var(--ease), filter .5s var(--ease);
}

.track-thumb:hover img {
  transform: scale(1.06);
  filter: brightness(.9);
}

.track-thumb::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 60%, rgba(0, 0, 0, .55));
  pointer-events: none;
}

.play-btn {
  position: absolute;
  inset: 0;
  margin: auto;
  width: 64px;
  height: 64px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: rgba(244, 239, 230, .1);
  border: 1px solid rgba(244, 239, 230, .4);
  backdrop-filter: blur(8px);
  transition: all .3s var(--ease);
}

.track-thumb:hover .play-btn {
  background: var(--brass);
  border-color: var(--brass);
  transform: scale(1.08);
}

.play-btn svg {
  width: 22px;
  height: 22px;
  margin-left: 3px;
}

.play-btn path {
  fill: var(--ink);
  transition: fill .3s var(--ease);
}

.track-thumb:hover .play-btn path {
  fill: var(--bg-0);
}

.track-thumb .duration {
  position: absolute;
  right: 12px;
  bottom: 12px;
  font-family: var(--ff-mono);
  font-size: 11px;
  color: var(--ink);
  letter-spacing: .05em;
  padding: 3px 8px;
  background: rgba(0, 0, 0, .55);
  border-radius: 3px;
  z-index: 2;
}

.track-info h3 {
  font-family: var(--ff-disp);
  font-size: clamp(1.5rem, 2.4vw, 2rem);
  font-weight: 600;
  line-height: 1.35;
  letter-spacing: .03em;
  margin-bottom: 6px;
}

.track-info .romaji {
  font-family: var(--ff-latin);
  font-style: italic;
  font-size: 14px;
  color: var(--brass-soft);
  letter-spacing: .08em;
  margin-bottom: 18px;
  display: block;
}

.track-info p {
  font-size: 14px;
  line-height: 1.95;
}

.track-info p+p {
  margin-top: .7rem;
}

.track-tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 16px;
}

.track-tags span {
  font-family: var(--ff-acc);
  font-size: 10px;
  letter-spacing: .14em;
  padding: 4px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--ink-muted);
  text-transform: uppercase;
}

.track details {
  margin-top: 18px;
  border-top: 1px solid var(--line);
  padding-top: 16px;
}

.track details summary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  list-style: none;
  font-family: var(--ff-acc);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--brass-soft);
  font-weight: 700;
  text-transform: uppercase;
}

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

.track details summary::before {
  content: '＋';
  display: grid;
  place-items: center;
  width: 20px;
  height: 20px;
  padding: 0px 4px 1px 2px;
  border: 1px solid var(--brass);
  border-radius: 50%;
  font-size: 14px;
  line-height: 1;
  transition: transform .25s var(--ease), rotate .25s var(--ease);
}

.track details[open] summary::before {
  content: '−';
  padding: 1px 2px 4px 3px;

  transform: translateY(-1px) rotate(180deg);
}

.track details p {
  margin-top: 14px;
  font-size: 13.5px;
  line-height: 1.85;
}

.track details ol {
  margin: 14px 0 0;
  padding-left: 24px;
  font-size: 13.5px;
  line-height: 1.85;
  color: var(--ink-dim);
  counter-reset: hb;
  list-style: none;
}

.track details ol li {
  position: relative;
  padding: 8px 0 8px 28px;
  border-bottom: 1px dashed var(--line);
}

.track details ol li::before {
  counter-increment: hb;
  content: counter(hb, decimal-leading-zero);
  position: absolute;
  left: -6px;
  top: 9px;
  font-family: var(--ff-latin);
  font-style: italic;
  color: var(--brass);
  font-size: 12px;
}

.track a {
  color: var(--brass-soft);
  border-bottom: 1px solid currentColor;
  padding-bottom: 1px;
}

/* ===== Artist ===== */
.artist {
  display: grid;
  grid-template-columns: .8fr 1.2fr;
  gap: clamp(40px, 6vw, 80px);
  align-items: start;
}

.artist-photo {
  position: relative;
  aspect-ratio: 4 / 5;
  overflow: hidden;
  border-radius: 4px;
  border: 1px solid var(--line-strong);
}

.artist-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(100%) contrast(1.05);
  transition: filter .8s var(--ease), transform .8s var(--ease);
}

.artist-photo:hover img {
  filter: grayscale(0%) contrast(1);
  transform: scale(1.02);
}

.artist-photo::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 55%, rgba(7, 8, 12, .75));
}

.artist-caption {
  position: absolute;
  left: 18px;
  bottom: 18px;
  z-index: 2;
  font-family: var(--ff-acc);
  font-size: 10px;
  color: var(--ink-muted);
  letter-spacing: .22em;
  text-transform: uppercase;
}

.artist-caption strong {
  display: block;
  font-family: var(--ff-disp);
  font-size: 22px;
  color: var(--ink);
  margin-top: 6px;
  letter-spacing: .05em;
}

.artist-bio h3 {
  display: none;
}

.artist-bio .bio-intro {
  font-family: var(--ff-disp);
  font-size: clamp(1.25rem, 2.2vw, 1.6rem);
  line-height: 1.75;
  color: var(--ink);
  font-weight: 500;
  margin-bottom: 26px;
  letter-spacing: .02em;
}

.artist-bio p {
  font-size: 14.5px;
  line-height: 2;
}

.artist-bio a {
  color: var(--brass-soft);
  border-bottom: 1px solid var(--line-strong);
}

.artist-bio a:hover {
  border-color: var(--brass);
}

.credits {
  margin-top: 36px;
  padding-top: 26px;
  border-top: 1px solid var(--line);
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px 28px;
}

.credit-row {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 16px;
  align-items: baseline;
}

.credit-row .k {
  font-family: var(--ff-acc);
  font-size: 10px;
  letter-spacing: .22em;
  color: var(--ink-muted);
  text-transform: uppercase;
}

.credit-row .v {
  font-family: var(--ff-disp);
  font-size: 15px;
  color: var(--ink);
  letter-spacing: .04em;
}

/* ===== Special ===== */
.special-note {
  margin-bottom: 40px;
  padding: 18px 22px;
  border-left: 2px solid var(--crimson);
  background: linear-gradient(90deg, rgba(177, 74, 59, .08), transparent);
  font-family: var(--ff-acc);
  font-size: 12.5px;
  color: var(--ink-dim);
  letter-spacing: .06em;
}

/* ===== Store ===== */
.store-intro {
  text-align: center;
  max-width: 620px;
  margin: 0 auto 50px;
  font-size: 15px;
  line-height: 1.95;
}

.store-intro strong {
  color: var(--brass-soft);
  font-weight: 500;
}

.store-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 14px;
}

.store-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 18px 20px;
  background: linear-gradient(145deg, rgba(17, 19, 30, .7), rgba(11, 13, 21, .5));
  border: 1px solid var(--line);
  border-radius: 10px;
  transition: all .3s var(--ease);
  position: relative;
  overflow: hidden;
}

.store-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(212, 169, 58, .12), transparent 60%);
  opacity: 0;
  transition: opacity .3s var(--ease);
}

.store-card:hover {
  border-color: var(--line-strong);
  transform: translateY(-2px);
  box-shadow: 0 20px 40px -20px rgba(0, 0, 0, .6);
}

.store-card:hover::before {
  opacity: 1;
}

.store-card .store-name {
  position: relative;
  font-family: var(--ff-acc);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .04em;
  color: var(--ink);
}

.store-card .store-sub {
  display: block;
  font-family: var(--ff-latin);
  font-style: italic;
  font-size: 11px;
  color: var(--ink-muted);
  letter-spacing: .05em;
  margin-top: 3px;
}

.store-card .arrow {
  position: relative;
  width: 28px;
  height: 28px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  border: 1px solid var(--line);
  flex-shrink: 0;
  transition: all .3s var(--ease);
}

.store-card:hover .arrow {
  background: var(--brass);
  border-color: var(--brass);
}

.store-card .arrow svg {
  width: 11px;
  height: 11px;
}

.store-card .arrow path {
  stroke: var(--ink-dim);
  transition: stroke .3s var(--ease);
}

.store-card:hover .arrow path {
  stroke: var(--bg-0);
}

.store-group {
  margin-bottom: 40px;
}

.store-group:last-child {
  margin-bottom: 0;
}

.store-group-title {
  font-family: var(--ff-acc);
  font-size: 11px;
  letter-spacing: .24em;
  font-weight: 700;
  color: var(--brass-soft);
  text-transform: uppercase;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 14px;
}

.store-group-title::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--line);
}

/* ===== Footer ===== */
.site-footer {
  position: relative;
  margin-top: 80px;
  padding: 80px clamp(18px, 5vw, 60px) 40px;
  background: linear-gradient(180deg, transparent, rgba(7, 8, 12, .8) 40%, #05060a);
  border-top: 1px solid var(--line);
}

.site-footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--brass), transparent);
}

.footer-inner {
  max-width: var(--shell);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 60px;
  align-items: start;
  padding-bottom: 50px;
  border-bottom: 1px solid var(--line);
}

.footer-brand h3 {
  font-family: var(--ff-disp);
  font-size: clamp(1.6rem, 2.6vw, 2.2rem);
  font-weight: 600;
  letter-spacing: .04em;
  line-height: 1.4;
}

.footer-brand p {
  margin-top: 14px;
  font-size: 13.5px;
  max-width: 420px;
}

.footer-share .label {
  font-family: var(--ff-acc);
  font-size: 11px;
  letter-spacing: .24em;
  font-weight: 700;
  color: var(--brass-soft);
  text-transform: uppercase;
  margin-bottom: 18px;
}

.socials {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.social-btn {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  border: 1px solid var(--line);
  background: rgba(244, 239, 230, .03);
  transition: all .3s var(--ease);
}

.social-btn svg {
  width: 18px;
  height: 18px;
}

.social-btn path,
.social-btn circle {
  fill: var(--ink-dim);
  transition: fill .3s var(--ease);
}

.social-btn:hover {
  border-color: var(--brass);
  background: rgba(212, 169, 58, .12);
}

.social-btn:hover path,
.social-btn:hover circle {
  fill: var(--brass-soft);
}

.footer-bottom {
  max-width: var(--shell);
  margin: 0 auto;
  padding-top: 30px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
  font-family: var(--ff-mono);
  font-size: 11px;
  color: var(--ink-muted);
  letter-spacing: .04em;
}

.footer-bottom .credits-mini {
  font-family: var(--ff-acc);
  letter-spacing: .14em;
}

/* ===== Modal ===== */
.modal {
  position: fixed;
  inset: 0;
  z-index: 5000;
  display: grid;
  place-items: center;
  padding: 20px;
  background: rgba(0, 0, 0, .88);
  backdrop-filter: blur(8px);
  opacity: 0;
  visibility: hidden;
  transition: opacity .35s var(--ease), visibility .35s var(--ease);
}

.modal.is-open {
  opacity: 1;
  visibility: visible;
}

.modal-content {
  position: relative;
  width: min(94vw, 1040px);
}

.modal iframe {
  width: 100%;
  aspect-ratio: 16/9;
  border: 0;
  border-radius: 6px;
  box-shadow: 0 40px 80px rgba(0, 0, 0, .6);
}

.modal-close {
  position: absolute;
  top: -48px;
  right: 0;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: transparent;
  border: 1px solid var(--line-strong);
  color: var(--ink);
  cursor: pointer;
  font-size: 20px;
  transition: all .2s var(--ease);
}

.modal-close:hover {
  background: var(--brass);
  color: var(--bg-0);
  border-color: var(--brass);
}

/* ===== Reveal animations ===== */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity .9s var(--ease), transform .9s var(--ease);
}

.reveal.in {
  opacity: 1;
  transform: none;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .hero-inner {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .hero-art {
    max-width: 340px;
    justify-self: center;
  }

  .hero-art .vinyl {
    display: none;
  }

  .album-liner {
    grid-template-columns: 1fr;
  }

  .track {
    grid-template-columns: 60px 1fr;
  }

  .track-thumb {
    grid-column: 2;
    order: 2;
    max-width: 360px;
  }

  .track-info {
    grid-column: 2;
    order: 3;
  }

  .track-num {
    position: static;
  }

  .artist {
    grid-template-columns: 1fr;
  }

  .artist-photo {
    max-width: 360px;
  }

  .footer-inner {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  body {
    font-size: 15px;
  }

  .nav-list {
    display: none;
  }

  .nav-cta {
    display: none;
  }

  .hamburger {
    display: grid;
    place-items: center;
    width: 42px;
    height: 42px;
    border: 1px solid var(--line-strong);
    border-radius: 50%;
    background: transparent;
    color: var(--ink);
    cursor: pointer;
  }

  .hamburger-lines,
  .hamburger-lines::before,
  .hamburger-lines::after {
    display: block;
    width: 18px;
    height: 1.5px;
    background: var(--ink);
    border-radius: 2px;
  }

  .hamburger-lines {
    position: relative;
  }

  .hamburger-lines::before,
  .hamburger-lines::after {
    content: '';
    position: absolute;
    left: 0;
  }

  .hamburger-lines::before {
    top: -6px;
  }

  .hamburger-lines::after {
    top: 6px;
  }

  .mobile-menu {
    position: fixed;
    inset: 0;
    background: rgba(7, 8, 12, .97);
    backdrop-filter: blur(20px);
    z-index: 900;
    display: grid;
    place-items: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity .3s var(--ease), visibility .3s var(--ease);
  }

  .mobile-menu.open {
    opacity: 1;
    visibility: visible;
  }

  .mobile-menu ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    gap: 22px;
    text-align: center;
  }

  .mobile-menu a {
    font-family: var(--ff-disp);
    font-size: 22px;
    letter-spacing: .1em;
  }

  .section-head {
    grid-template-columns: 1fr;
  }

  .section-kicker {
    justify-self: start;
    text-align: left;
    max-width: none;
  }

  .hero-meta {
    display: none;
  }

  .scroll-cue {
    display: none;
  }

  .track-thumb {
    max-width: none;
  }

  .track {
    gap: 16px;
  }

  .track-num {
    font-size: 2.2rem;
  }

  .credits {
    grid-template-columns: 1fr;
  }

  .footer-bottom {
    flex-direction: column;
  }
}

/* respect reduced motion */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: .01ms !important;
    transition-duration: .01ms !important;
  }

  .cosmos::before,
  .hero-art .vinyl,
  #webgl-cosmos {
    animation: none !important;
  }
}


/* ============================================================
   Cosmic Loader — 宇宙と神秘
   ============================================================ */
#mu-loader {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: grid;
  place-items: center;
  background: radial-gradient(ellipse at 50% 40%, #141828 0%, #0b0d15 55%, #05060b 100%);
  overflow: hidden;
  transition: opacity 1.2s ease, visibility 1.2s ease;
}

#mu-loader.is-done {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

/* drifting starfield */
#mu-loader .ml-stars {
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(1px 1px at 12% 22%, rgba(244, 239, 230, .9), transparent 60%),
    radial-gradient(1px 1px at 78% 14%, rgba(244, 239, 230, .7), transparent 60%),
    radial-gradient(1.5px 1.5px at 32% 78%, rgba(240, 207, 110, .8), transparent 60%),
    radial-gradient(1px 1px at 88% 66%, rgba(244, 239, 230, .6), transparent 60%),
    radial-gradient(1px 1px at 52% 44%, rgba(244, 239, 230, .5), transparent 60%),
    radial-gradient(1.2px 1.2px at 18% 58%, rgba(240, 207, 110, .6), transparent 60%),
    radial-gradient(1px 1px at 66% 32%, rgba(244, 239, 230, .7), transparent 60%),
    radial-gradient(1px 1px at 44% 88%, rgba(244, 239, 230, .55), transparent 60%),
    radial-gradient(1.4px 1.4px at 8% 84%, rgba(240, 207, 110, .7), transparent 60%),
    radial-gradient(1px 1px at 94% 42%, rgba(244, 239, 230, .55), transparent 60%);
  animation: mlStars 9s ease-in-out infinite alternate;
  opacity: .85;
}

@keyframes mlStars {
  0% {
    transform: scale(1) translateY(0);
    opacity: .7;
  }

  50% {
    opacity: 1;
  }

  100% {
    transform: scale(1.04) translateY(-6px);
    opacity: .85;
  }
}

/* faint nebula wash */
#mu-loader .ml-nebula {
  position: absolute;
  inset: -20%;
  background:
    radial-gradient(40% 30% at 30% 35%, rgba(177, 74, 59, .18), transparent 70%),
    radial-gradient(35% 28% at 72% 65%, rgba(212, 169, 58, .15), transparent 70%),
    radial-gradient(50% 40% at 50% 50%, rgba(88, 76, 140, .12), transparent 75%);
  filter: blur(10px);
  animation: mlNebula 14s ease-in-out infinite alternate;
}

@keyframes mlNebula {
  0% {
    transform: rotate(0deg) scale(1);
  }

  100% {
    transform: rotate(8deg) scale(1.08);
  }
}

/* stage */
#mu-loader .ml-stage {
  position: relative;
  width: min(520px, 86vw);
  aspect-ratio: 1 / 1;
  display: grid;
  place-items: center;
}

/* mandala rings */
#mu-loader .ml-ring {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 1px solid rgba(244, 239, 230, .12);
  mix-blend-mode: screen;
}

#mu-loader .ml-ring.r1 {
  inset: 4%;
  border-color: rgba(212, 169, 58, .35);
}

#mu-loader .ml-ring.r2 {
  inset: 12%;
  border-color: rgba(244, 239, 230, .18);
  border-style: dashed;
}

#mu-loader .ml-ring.r3 {
  inset: 22%;
  border-color: rgba(212, 169, 58, .22);
}

#mu-loader .ml-ring.r4 {
  inset: 34%;
  border-color: rgba(244, 239, 230, .28);
}

/* spinning arc — acts as progress */
#mu-loader .ml-arc {
  position: absolute;
  inset: 4%;
  border-radius: 50%;
  border: 2px solid transparent;
  border-top-color: #f0cf6e;
  border-right-color: rgba(240, 207, 110, .35);
  filter: drop-shadow(0 0 6px rgba(240, 207, 110, .55));
  animation: mlSpin 3.2s linear infinite;
}

#mu-loader .ml-arc.inner {
  inset: 22%;
  border-top-color: #b14a3b;
  border-right-color: transparent;
  border-left-color: rgba(177, 74, 59, .25);
  animation: mlSpinR 5s linear infinite;
  filter: drop-shadow(0 0 4px rgba(177, 74, 59, .45));
}

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

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

/* twelve points (for 12 tracks) */
#mu-loader .ml-points {
  position: absolute;
  inset: 0;
  animation: mlSpin 28s linear infinite;
}

#mu-loader .ml-points i {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 4px;
  height: 4px;
  background: #f0cf6e;
  border-radius: 50%;
  box-shadow: 0 0 8px rgba(240, 207, 110, .9), 0 0 18px rgba(240, 207, 110, .4);
  transform-origin: 0 0;
}

/* core glyph stack */
#mu-loader .ml-core {
  position: relative;
  width: 38%;
  aspect-ratio: 1/1;
  display: grid;
  place-items: center;
  z-index: 2;
}

#mu-loader .ml-core::before {
  content: "";
  position: absolute;
  inset: -10%;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(240, 207, 110, .22), rgba(240, 207, 110, 0) 65%);
  filter: blur(6px);
  animation: mlPulse 3.6s ease-in-out infinite;
}

@keyframes mlPulse {

  0%,
  100% {
    transform: scale(.96);
    opacity: .75;
  }

  50% {
    transform: scale(1.08);
    opacity: 1;
  }
}

#mu-loader .ml-kanji {
  position: absolute;
  font-family: 'Shippori Mincho', 'Noto Serif JP', serif;
  font-weight: 600;
  font-size: clamp(56px, 10vw, 110px);
  color: #f4efe6;
  letter-spacing: .02em;
  text-shadow:
    0 0 18px rgba(240, 207, 110, .55),
    0 0 2px rgba(244, 239, 230, .9);
  opacity: 0;
  animation: mlKanji 8s infinite;
}

#mu-loader .ml-kanji:nth-child(1) {
  animation-delay: 0s;
}

#mu-loader .ml-kanji:nth-child(2) {
  animation-delay: 2s;
}

#mu-loader .ml-kanji:nth-child(3) {
  animation-delay: 4s;
}

#mu-loader .ml-kanji:nth-child(4) {
  animation-delay: 6s;
}

@keyframes mlKanji {

  0%,
  22% {
    opacity: 0;
    transform: scale(1.12);
    filter: blur(6px);
  }

  6%,
  18% {
    opacity: 1;
    transform: scale(1);
    filter: blur(0);
  }

  25%,
  100% {
    opacity: 0;
    transform: scale(.92);
    filter: blur(4px);
  }
}

/* bottom text block */
#mu-loader .ml-foot {
  position: absolute;
  left: 50%;
  bottom: 9vh;
  transform: translateX(-50%);
  text-align: center;
  color: #f4efe6;
  z-index: 3;
}

#mu-loader .ml-title {
  font-family: 'Cormorant Garamond', serif;
  font-style: italic;
  font-weight: 400;
  font-size: clamp(14px, 1.6vw, 18px);
  letter-spacing: .42em;
  text-transform: uppercase;
  color: rgba(244, 239, 230, .75);
  margin-bottom: 14px;
}

#mu-loader .ml-ruby {
  font-family: 'Shippori Mincho', serif;
  font-size: clamp(20px, 2.4vw, 28px);
  font-weight: 500;
  letter-spacing: .18em;
  color: #f4efe6;
}

#mu-loader .ml-ruby ruby rt {
  font-size: .34em;
  letter-spacing: .2em;
  color: rgba(240, 207, 110, .85);
  font-weight: 400;
}

#mu-loader .ml-accent {
  color: #f0cf6e;
}

/* progress bar */
#mu-loader .ml-progress {
  margin: 22px auto 0;
  width: clamp(180px, 22vw, 260px);
  height: 1px;
  background: rgba(244, 239, 230, .12);
  position: relative;
  overflow: hidden;
}

#mu-loader .ml-progress::after {
  content: "";
  position: absolute;
  inset: 0;
  width: 40%;
  background: linear-gradient(90deg, transparent, #f0cf6e, transparent);
  animation: mlBar 1.8s ease-in-out infinite;
}

@keyframes mlBar {
  0% {
    transform: translateX(-100%);
  }

  100% {
    transform: translateX(320%);
  }
}

/* top corner mono tag */
#mu-loader .ml-tag {
  position: absolute;
  top: 28px;
  left: 28px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  letter-spacing: .24em;
  color: rgba(244, 239, 230, .5);
  z-index: 3;
}

#mu-loader .ml-tag .dot {
  display: inline-block;
  width: 6px;
  height: 6px;
  background: #d4a93a;
  border-radius: 50%;
  margin-right: 8px;
  vertical-align: middle;
  animation: mlPulse 1.6s ease-in-out infinite;
  box-shadow: 0 0 8px rgba(212, 169, 58, .8);
}

#mu-loader .ml-tag-r {
  position: absolute;
  top: 28px;
  right: 28px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  letter-spacing: .24em;
  color: rgba(244, 239, 230, .5);
  z-index: 3;
  text-align: right;
}

/* crosshair ticks */
#mu-loader .ml-tick {
  position: absolute;
  width: 10px;
  height: 1px;
  background: rgba(240, 207, 110, .6);
}

#mu-loader .ml-tick.t1 {
  top: 50%;
  left: -14px;
}

#mu-loader .ml-tick.t2 {
  top: 50%;
  right: -14px;
}

#mu-loader .ml-tick.t3 {
  top: -14px;
  left: 50%;
  transform: rotate(90deg);
}

#mu-loader .ml-tick.t4 {
  bottom: -14px;
  left: 50%;
  transform: rotate(90deg);
}

/* reduced motion */
@media (prefers-reduced-motion: reduce) {
  #mu-loader * {
    animation-duration: .001s !important;
    animation-iteration-count: 1 !important;
  }
}

@media (max-width: 520px) {

  #mu-loader .ml-tag,
  #mu-loader .ml-tag-r {
    top: 18px;
    font-size: 10px;
    letter-spacing: .2em;
  }

  #mu-loader .ml-tag {
    left: 18px;
  }

  #mu-loader .ml-tag-r {
    right: 18px;
  }

  #mu-loader .ml-foot {
    bottom: 6vh;
  }
}