:root {
  --bg: #070707;
  --bg-soft: #0d0d0d;
  --panel: #111;
  --text: #f4f1eb;
  --muted: #aaa49c;
  --line: rgba(255,255,255,.13);
  --accent: #b2211e;
  --accent-bright: #e03932;
  --gold: #c8a66a;
  --max: 1180px;
  --header: 78px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: var(--header); }
body {
  margin: 0;
  color: var(--text);
  background: var(--bg);
  font-family: "Yu Gothic", "Hiragino Kaku Gothic ProN", "Noto Sans JP", system-ui, sans-serif;
  line-height: 1.8;
  overflow-x: hidden;
}
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
::selection { background: var(--accent); color: #fff; }

.skip-link {
  position: fixed; top: -100px; left: 16px; z-index: 9999;
  background: #fff; color: #000; padding: 10px 16px; text-decoration: none;
}
.skip-link:focus { top: 12px; }

.site-header {
  position: fixed; inset: 0 0 auto 0; z-index: 1000;
  height: var(--header); padding: 0 clamp(18px,4vw,54px);
  display: flex; align-items: center; justify-content: space-between;
  border-bottom: 1px solid transparent;
  transition: background .35s ease, border-color .35s ease, backdrop-filter .35s ease;
}
.site-header.scrolled {
  background: rgba(6,6,6,.88); border-color: var(--line); backdrop-filter: blur(18px);
}
.brand { text-decoration: none; display: flex; flex-direction: column; line-height: 1.05; letter-spacing: .08em; }
.brand-main { font-family: Georgia, "Times New Roman", serif; font-size: 19px; font-weight: 700; }
.brand-sub { font-size: 8px; color: var(--muted); letter-spacing: .24em; margin-top: 7px; }
.site-nav { display: flex; gap: clamp(20px,3vw,42px); }
.site-nav a {
  text-decoration: none; text-transform: uppercase; font-size: 11px; letter-spacing: .22em;
  color: #d6d2cc; position: relative;
}
.site-nav a::after { content: ""; position: absolute; left: 0; bottom: -9px; width: 0; height: 1px; background: var(--accent-bright); transition: width .25s; }
.site-nav a:hover::after, .site-nav a:focus-visible::after { width: 100%; }
.menu-button { display: none; border: 0; background: transparent; padding: 10px; }
.menu-button span { display: block; width: 25px; height: 1px; margin: 6px 0; background: #fff; transition: .25s; }

.hero {
  min-height: 100svh; position: relative; display: grid; place-items: center; isolation: isolate; overflow: hidden;
}
.hero-bg {
  position: absolute; inset: -6%; z-index: -3;
  background-image: url("assets/osaka_no_yoru_no_aishu.png"), url("assets/new_single_cover_fallback.jpg");
  background-position: center; background-size: cover;
  filter: blur(3px) saturate(.7) brightness(.45);
  transform: scale(1.06);
}
.hero-bg::after { content:""; position:absolute; inset:0; background: radial-gradient(circle at 50% 35%, transparent 0 18%, rgba(0,0,0,.45) 65%, #050505 100%); }
.hero-shade { position:absolute; inset:0; z-index:-2; background: linear-gradient(180deg, rgba(0,0,0,.32), rgba(0,0,0,.2) 55%, var(--bg) 100%); }
.hero-content { width: min(920px, 92vw); padding: calc(var(--header) + 40px) 20px 70px; text-align: center; }
.hero-logo { width: clamp(150px,22vw,255px); aspect-ratio: 1; object-fit: cover; margin: 0 auto 22px; mix-blend-mode: screen; opacity: .95; }
.eyebrow { margin: 0 0 15px; color: var(--accent-bright); font-size: 11px; letter-spacing: .34em; font-weight: 700; }
.hero h1 { margin: 0; font-family: Georgia, "Yu Mincho", serif; font-weight: 500; line-height: 1.25; text-shadow: 0 8px 32px #000; }
.hero h1 span { display: block; font-size: clamp(30px,6vw,70px); letter-spacing: .03em; }
.hero h1 small { display: block; font-size: clamp(14px,2.2vw,24px); letter-spacing: .08em; color: #d0cbc4; font-weight: 400; }
.hero h1 em { display: block; margin: 7px 0 3px; color: var(--accent-bright); font-style: normal; font-size: 19px; }
.hero-tagline { margin: 28px 0 13px; font-family: "Yu Mincho", Georgia, serif; letter-spacing: .1em; color: #ded9d1; font-size: clamp(14px,2vw,18px); }
.hero-status { display: inline-flex; align-items: center; gap: 10px; margin-top: 12px; padding: 8px 18px; border: 1px solid rgba(255,255,255,.42); font-size: 10px; letter-spacing: .28em; }
.hero-status::before { content:""; width: 7px; height: 7px; border-radius: 50%; background: var(--accent-bright); box-shadow: 0 0 15px var(--accent-bright); }
.scroll-link { display: block; margin-top: 52px; text-decoration: none; font-size: 9px; letter-spacing: .26em; color: #aaa; }
.scroll-link span { display: block; margin-top: 7px; animation: float 1.8s ease-in-out infinite; }
@keyframes float { 50% { transform: translateY(7px); } }

.section { padding: clamp(88px,11vw,150px) clamp(20px,5vw,70px); }
.section-head { width: min(var(--max),100%); margin: 0 auto 55px; }
.section-head h2, .world h2, .exito h2, .follow h2 { margin: 0; font-family: Georgia, "Times New Roman", serif; font-size: clamp(38px,6vw,78px); line-height: 1.08; font-weight: 400; }

.releases { background: linear-gradient(180deg, var(--bg), #0a0a0a 45%, var(--bg)); }
.release-card { width: min(var(--max),100%); margin: 0 auto; }
.release-card.featured {
  display: grid; grid-template-columns: minmax(300px,.95fr) minmax(320px,1.05fr); gap: clamp(40px,7vw,90px); align-items: center;
  padding: clamp(22px,4vw,48px); border: 1px solid var(--line); background: linear-gradient(145deg, rgba(255,255,255,.04), rgba(255,255,255,.012));
  box-shadow: 0 25px 90px rgba(0,0,0,.5);
}
.cover-wrap { position: relative; }
.cover { width: 100%; aspect-ratio: 1; object-fit: cover; box-shadow: 0 22px 55px rgba(0,0,0,.62); }
.cover-badge { position: absolute; top: 18px; left: 18px; padding: 8px 12px; background: rgba(0,0,0,.74); border: 1px solid rgba(255,255,255,.28); font-size: 9px; letter-spacing: .22em; }
.release-status { margin: 0 0 13px; color: var(--accent-bright); font-size: 10px; letter-spacing: .28em; font-weight: 700; }
.release-copy h3, .catalog-copy h3 { margin: 0; font-family: Georgia, "Yu Mincho", serif; font-weight: 500; font-size: clamp(28px,4.4vw,50px); line-height: 1.25; }
.release-copy h3 small { font-size: .42em; color: var(--muted); letter-spacing: .04em; }
.release-copy .second-title { font-size: clamp(28px,3.8vw,44px); }
.divider { display: flex; align-items: center; gap: 14px; margin: 22px 0; color: var(--muted); font-size: 9px; letter-spacing: .24em; }
.divider::before, .divider::after { content:""; height: 1px; flex: 1; background: var(--line); }
.release-description { color: #c2bdb5; margin: 25px 0 18px; }
.track-list { list-style: none; padding: 0; margin: 24px 0 30px; border-top: 1px solid var(--line); }
.track-list li { display: grid; grid-template-columns: 34px 1fr; gap: 10px; padding: 13px 0; border-bottom: 1px solid var(--line); font-size: 13px; line-height: 1.5; }
.track-list span { color: var(--accent-bright); font-family: Georgia, serif; }
.platform-links { display: flex; flex-wrap: wrap; gap: 10px; }
.platform-links a { text-decoration: none; padding: 10px 15px; border: 1px solid rgba(255,255,255,.24); font-size: 10px; letter-spacing: .08em; transition: .25s; }
.platform-links a:hover, .platform-links a:focus-visible { border-color: var(--accent-bright); background: var(--accent); }
.release-note { margin: 13px 0 0; font-size: 10px; color: #777; }

.catalog-grid { width: min(var(--max),100%); margin: clamp(70px,9vw,110px) auto 0; display: grid; grid-template-columns: 1fr 1fr; gap: clamp(26px,4vw,50px); }
.catalog-card { display: grid; grid-template-columns: minmax(130px,.75fr) minmax(190px,1fr); gap: 26px; align-items: center; padding: 22px; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.catalog-card img { width: 100%; aspect-ratio: 1; object-fit: cover; }
.catalog-copy h3 { font-size: clamp(25px,3vw,38px); }
.catalog-copy p { color: var(--muted); font-size: 13px; line-height: 1.7; }
.catalog-copy .release-number { margin: 3px 0 14px; color: #777; font-size: 10px; text-transform: uppercase; letter-spacing: .16em; }
.platform-links.compact a { padding: 7px 10px; font-size: 8px; }

.world { min-height: 88vh; display: grid; place-items: center; text-align: center; background: radial-gradient(circle at center, #1a0d0c 0, #0a0808 35%, var(--bg) 70%); }
.world-inner { width: min(850px,100%); }
.world h2 { margin-bottom: 45px; }
.world p { color: #c4beb7; font-family: "Yu Mincho", Georgia, serif; font-size: clamp(15px,2vw,19px); }
.world strong { display: block; margin-top: 40px; color: var(--gold); font-family: Georgia, serif; font-size: clamp(18px,2.4vw,28px); letter-spacing: .08em; }

.biography { background: #090909; }
.bio-grid { width: min(var(--max),100%); margin: 0 auto; display: grid; grid-template-columns: minmax(280px,.78fr) minmax(360px,1.22fr); gap: clamp(45px,8vw,100px); align-items: start; }
.bio-photo { position: sticky; top: calc(var(--header) + 24px); }
.bio-photo img { width: 100%; aspect-ratio: 1; object-fit: cover; filter: saturate(.82) contrast(1.04); }
.bio-copy { color: #bbb5ad; }
.bio-copy p { margin: 0 0 21px; }
.timeline { display: grid; grid-template-columns: repeat(5,1fr); margin-bottom: 38px; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.timeline span { padding: 13px 8px; text-align: center; border-right: 1px solid var(--line); color: #777; font-size: 8px; letter-spacing: .12em; line-height: 1.35; }
.timeline span:last-child { border-right: 0; }
.timeline b { display: block; color: #fff; font-family: Georgia, serif; font-size: 14px; margin-bottom: 4px; }
blockquote { margin: 42px 0 0; padding-left: 25px; border-left: 2px solid var(--accent); color: #e2ddd5; font-family: Georgia, serif; font-size: 19px; font-style: italic; }

.exito { background: linear-gradient(160deg,#080808,#120908); }
.exito-inner { width: min(1020px,100%); margin: 0 auto; display: grid; grid-template-columns: minmax(260px,.8fr) minmax(300px,1.2fr); gap: clamp(40px,8vw,100px); align-items: center; }
.exito-inner img { aspect-ratio: 1; object-fit: cover; }
.exito h2 { font-size: clamp(38px,5.7vw,70px); margin-bottom: 28px; }
.exito p:not(.eyebrow) { color: #aaa49c; }

.follow { text-align: center; min-height: 72vh; display: grid; place-items: center; }
.follow-inner { width: min(800px,100%); }
.follow h2 { margin-bottom: 8px; }
.follow p:not(.eyebrow) { color: var(--muted); font-family: Georgia, serif; font-size: 19px; }
.social-links { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; margin-top: 38px; }
.social-links a { min-width: 126px; padding: 13px 18px; border: 1px solid var(--line); text-decoration: none; font-size: 11px; letter-spacing: .12em; transition: .25s; }
.social-links a:hover, .social-links a:focus-visible { border-color: var(--accent-bright); color: #fff; background: var(--accent); }

footer { padding: 34px 24px; border-top: 1px solid var(--line); display: flex; justify-content: space-between; align-items: center; gap: 20px; color: #68635e; font-size: 9px; letter-spacing: .08em; }
.footer-brand { color: #c6c0b7; font-family: Georgia, serif; font-size: 15px; text-decoration: none; }

.reveal { opacity: 0; transform: translateY(30px); transition: opacity .85s ease, transform .85s ease; }
.reveal.visible { opacity: 1; transform: none; }

@media (max-width: 900px) {
  :root { --header: 66px; }
  .menu-button { display: block; z-index: 2; }
  .site-nav {
    position: fixed; inset: 0; display: grid; place-content: center; gap: 28px; text-align: center;
    background: rgba(5,5,5,.97); transform: translateX(100%); transition: transform .3s ease;
  }
  .site-nav.open { transform: none; }
  .site-nav a { font-size: 16px; }
  .menu-button.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .menu-button.open span:nth-child(2) { opacity: 0; }
  .menu-button.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
  .release-card.featured, .bio-grid, .exito-inner { grid-template-columns: 1fr; }
  .cover-wrap { width: min(610px,100%); margin: 0 auto; }
  .bio-photo { position: static; width: min(620px,100%); margin: 0 auto; }
  .catalog-grid { grid-template-columns: 1fr; }
}

@media (max-width: 620px) {
  .brand-main { font-size: 16px; }
  .hero-content { padding-inline: 8px; }
  .hero-logo { width: 145px; }
  .hero h1 span { font-size: clamp(27px,9.5vw,42px); }
  .section { padding-inline: 18px; }
  .release-card.featured { padding: 14px; }
  .release-copy { padding: 12px 7px 20px; }
  .catalog-card { grid-template-columns: 112px 1fr; padding: 14px 0; gap: 18px; }
  .catalog-copy p:not(.release-status):not(.release-number) { display: none; }
  .platform-links.compact { gap: 5px; }
  .timeline { grid-template-columns: 1fr; }
  .timeline span { display: grid; grid-template-columns: 70px 1fr; text-align: left; align-items: center; border-right: 0; border-bottom: 1px solid var(--line); }
  .timeline span:last-child { border-bottom: 0; }
  .timeline b { margin: 0; }
  footer { flex-direction: column; text-align: center; }
}

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