:root {
  --sky: #7ec3ee;
  --sky-deep: #2e6fb7;
  --night: #101b33;
  --night-2: #1b2a4a;
  --gold: #f5d9a0;
  --white: #ffffff;
  --ink: #233047;
  --glass: rgba(255, 255, 255, 0.55);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: 'Zen Kaku Gothic New', sans-serif;
  color: var(--ink);
  background: linear-gradient(180deg, #cfe9fb 0%, #eaf6ff 40%, #f7fbff 100%);
  overflow-x: hidden;
}

h1, h2, h3, .serif {
  font-family: 'Shippori Mincho', serif;
}

.en {
  font-family: 'Cormorant Garamond', serif;
  letter-spacing: 0.18em;
}

/* ===== Header ===== */
header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 28px;
  transition: background 0.4s, box-shadow 0.4s;
}
header.scrolled, header.solid {
  background: rgba(234, 246, 255, 0.94);
  backdrop-filter: blur(12px);
  box-shadow: 0 1px 20px rgba(46, 111, 183, 0.12);
}
.logo {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.3rem;
  letter-spacing: 0.22em;
  color: var(--white);
  text-decoration: none;
  text-shadow: 0 1px 12px rgba(20, 60, 110, 0.45);
  transition: color 0.4s, text-shadow 0.4s;
}
header.scrolled .logo, header.solid .logo { color: var(--ink); text-shadow: none; }
nav { display: flex; gap: 26px; }
nav a {
  color: var(--white);
  text-decoration: none;
  font-size: 0.82rem;
  letter-spacing: 0.16em;
  font-family: 'Cormorant Garamond', serif;
  text-shadow: 0 1px 10px rgba(20, 60, 110, 0.5);
  transition: color 0.4s, text-shadow 0.4s, opacity 0.2s;
}
header.scrolled nav a, header.solid nav a { color: var(--ink); text-shadow: none; }
nav a:hover { opacity: 0.65; }

/* ===== Hero (NEW SINGLE) ===== */
.hero {
  position: relative;
  height: 100svh;
  min-height: 540px;
  overflow: hidden;
}
.hero .bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top; /* ウィンドウサイズに関わらず画像の上端を必ず見せる */
  filter: blur(1px) saturate(1.05);
  transform: scale(1.04); /* ぼかしで生じる縁のにじみを画面外に逃がす */
}
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(200deg, rgba(16,27,51,0) 40%, rgba(16,27,51,0.18) 70%, rgba(16,27,51,0.45) 100%);
}
.hero-panel {
  position: absolute;
  z-index: 2;
  right: 4vw;
  bottom: 6svh;
  width: min(780px, 68vw);
  color: var(--ink);
  background: rgba(205, 233, 250, 0.88);
  border: 1px solid rgba(255, 255, 255, 0.65);
  border-radius: 16px;
  backdrop-filter: blur(10px);
  padding: 26px 28px;
  display: flex;
  align-items: stretch;
  gap: 26px;
}
.hero-panel .panel-main { flex: 1; min-width: 0; }
/* ジャケットの枠：パネル内容の上端(バッジ)から下端(ボタン)までに合わせて伸びる */
.hero-panel .panel-side {
  flex: 0 0 clamp(260px, 27vw, 340px);
  align-self: stretch;
  position: relative;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 12px 30px rgba(8, 20, 45, 0.45);
  opacity: 0;
  animation: rise 1.1s ease 0.3s forwards;
}
.hero-panel .panel-jacket {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
@media (max-width: 1100px) {
  .hero-panel .panel-side { flex-basis: clamp(170px, 24vw, 240px); }
}
.hero-panel .kicker {
  display: inline-block;
  font-family: 'Cormorant Garamond', serif;
  font-size: 0.7rem;
  letter-spacing: 0.4em;
  color: var(--sky-deep);
  border: 1px solid rgba(46, 111, 183, 0.5);
  border-radius: 999px;
  padding: 6px 16px 5px;
  margin-bottom: 14px;
  background: rgba(255,255,255,0.4);
  opacity: 0;
  animation: rise 1.1s ease 0.2s forwards;
}
.hero-panel h1 {
  font-family: 'Shippori Mincho', serif;
  font-weight: 500;
  font-size: clamp(1.3rem, 2.4vw, 1.9rem);
  letter-spacing: 0.06em;
  line-height: 1.1;
  margin-bottom: 6px;
  color: var(--ink);
  opacity: 0;
  animation: rise 1.3s ease 0.45s forwards;
}
.hero-panel .artist {
  font-family: 'Cormorant Garamond', serif;
  font-size: 0.92rem;
  letter-spacing: 0.24em;
  color: #5b6f8f;
  margin-bottom: 12px;
  opacity: 0;
  animation: rise 1.3s ease 0.6s forwards;
}
.hero-panel .copy {
  font-family: 'Shippori Mincho', serif;
  font-size: 0.88rem;
  letter-spacing: 0.18em;
  line-height: 1.9;
  color: #44536e;
  margin-bottom: 16px;
  opacity: 0;
  animation: rise 1.3s ease 0.75s forwards;
}
.hero-player {
  background: rgba(255,255,255,0.55);
  border: 1px solid rgba(46, 111, 183, 0.25);
  border-radius: 12px;
  padding: 12px 14px;
  margin-bottom: 16px;
  opacity: 0;
  animation: rise 1.3s ease 0.9s forwards;
}
.hero-player .label {
  font-family: 'Cormorant Garamond', serif;
  font-size: 0.64rem;
  letter-spacing: 0.3em;
  color: var(--sky-deep);
  margin-bottom: 8px;
}
.hero-player audio { width: 100%; display: block; height: 40px; }
.hero-actions {
  display: flex;
  flex-wrap: nowrap;
  gap: 10px;
  opacity: 0;
  animation: rise 1.3s ease 1.05s forwards;
}
.hero-actions .btn { padding: 10px 20px; font-size: 0.78rem; white-space: nowrap; }
.btn {
  display: inline-block;
  padding: 13px 34px;
  border-radius: 999px;
  text-decoration: none;
  font-family: 'Cormorant Garamond', serif;
  letter-spacing: 0.2em;
  font-size: 0.86rem;
  transition: transform 0.3s, background 0.3s, color 0.3s;
}
.btn:hover { transform: translateY(-3px); }
.btn-primary {
  background: var(--sky-deep);
  color: var(--white);
}
.btn-primary:hover { background: #245d9e; }
.btn-ghost {
  border: 1px solid rgba(46, 111, 183, 0.55);
  color: var(--sky-deep);
  background: rgba(255,255,255,0.35);
}
.btn-ghost:hover { background: rgba(255,255,255,0.7); }

@keyframes rise {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}
.scroll-cue {
  position: absolute;
  bottom: 22px;
  left: 7vw;
  z-index: 2;
  color: var(--white);
  font-size: 0.68rem;
  letter-spacing: 0.35em;
  font-family: 'Cormorant Garamond', serif;
  text-align: center;
  opacity: 0.85;
}
.scroll-cue::after {
  content: "";
  display: block;
  width: 1px;
  height: 40px;
  margin: 10px auto 0;
  background: linear-gradient(180deg, var(--white), transparent);
  animation: cue 2s ease-in-out infinite;
}
@keyframes cue {
  0%   { transform: scaleY(0); transform-origin: top; }
  50%  { transform: scaleY(1); transform-origin: top; }
  51%  { transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* ===== 共通セクション ===== */
section { padding: 110px 7vw; position: relative; }
.sec-head { text-align: center; margin-bottom: 64px; }
.sec-head .en-title {
  font-family: 'Cormorant Garamond', serif;
  font-size: clamp(2rem, 5vw, 3rem);
  letter-spacing: 0.24em;
  color: var(--sky-deep);
}
.sec-head .ja-title {
  display: block;
  margin-top: 10px;
  font-size: 0.85rem;
  letter-spacing: 0.4em;
  color: #6b7d99;
}

.reveal {
  opacity: 0;
  transform: translateY(36px);
  transition: opacity 0.9s ease, transform 0.9s ease;
}
.reveal.on { opacity: 1; transform: none; }

/* ===== About ===== */
#about {
  position: relative;
  background: #ffffff;
  margin-top: 60px;
  border-radius: 40px 40px 0 0;
  box-shadow: 0 -10px 40px rgba(46, 111, 183, 0.1);
}
/* 上端に淡い水色の区切りライン */
#about::before {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 54px;
  height: 4px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--sky), var(--sky-deep));
  margin-top: 26px;
}
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 60px;
  align-items: center;
  max-width: 1060px;
  margin: 0 auto;
}
.about-photo {
  border-radius: 6px;
  overflow: hidden;
  box-shadow: 0 24px 60px rgba(46, 111, 183, 0.25);
  aspect-ratio: 4 / 5;
}
.about-photo img {
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: center center;
}
.about-text h3 {
  font-size: 1.5rem;
  letter-spacing: 0.14em;
  line-height: 2;
  margin-bottom: 26px;
  color: var(--ink);
}
.about-text p {
  font-size: 0.95rem;
  line-height: 2.3;
  letter-spacing: 0.06em;
  color: #44536e;
  margin-bottom: 18px;
}

/* ===== Discography ===== */
.page-head {
  padding: 150px 7vw 0;
  text-align: center;
}
.disc-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(270px, 1fr));
  gap: 40px;
  max-width: 1100px;
  margin: 0 auto;
}
.disc {
  background: rgba(255,255,255,0.6);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255,255,255,0.8);
  border-radius: 12px;
  padding: 18px;
  box-shadow: 0 14px 36px rgba(46, 111, 183, 0.16);
  transition: transform 0.45s ease, box-shadow 0.45s ease;
}
.disc:hover {
  transform: translateY(-6px);
  box-shadow: 0 24px 48px rgba(46, 111, 183, 0.26);
}
.disc .cover {
  border-radius: 8px;
  overflow: hidden;
  aspect-ratio: 1;
  margin-bottom: 14px;
}
.disc .cover img {
  width: 100%; height: 100%;
  object-fit: cover;
  display: block;
}
.disc .title {
  font-family: 'Shippori Mincho', serif;
  font-size: 1.05rem;
  letter-spacing: 0.1em;
}
.disc .sub {
  font-size: 0.7rem;
  color: #6b7d99;
  letter-spacing: 0.18em;
  margin: 4px 0 12px;
  font-family: 'Cormorant Garamond', serif;
}
.disc audio { width: 100%; height: 38px; }
.disc .preview-note {
  font-size: 0.68rem;
  color: #8a99b5;
  letter-spacing: 0.08em;
  margin-top: 8px;
}

/* ===== Discography CTA ===== */
.disc-cta {
  max-width: 720px;
  margin: 80px auto 0;
  text-align: center;
  background: rgba(255,255,255,0.6);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255,255,255,0.8);
  border-radius: 14px;
  padding: 44px 30px;
  box-shadow: 0 14px 36px rgba(46, 111, 183, 0.16);
}
.disc-cta p {
  font-family: 'Shippori Mincho', serif;
  font-size: 1rem;
  letter-spacing: 0.14em;
  line-height: 2;
  margin-bottom: 24px;
}
.disc-cta .links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px;
}
.btn-stream {
  display: inline-block;
  padding: 13px 36px;
  border-radius: 999px;
  border: 1px solid var(--sky-deep);
  color: var(--sky-deep);
  text-decoration: none;
  font-family: 'Cormorant Garamond', serif;
  letter-spacing: 0.14em;
  font-size: 0.9rem;
  transition: background 0.3s, color 0.3s, transform 0.3s;
}
.btn-stream:hover {
  background: var(--sky-deep);
  color: var(--white);
  transform: translateY(-3px);
}

/* ===== Listen ===== */
.listen-sec {
  background: linear-gradient(180deg, #c8e3f8 0%, #16243f 28%, var(--night) 100%);
  color: var(--white);
  text-align: center;
}
.listen-sec .sec-head .en-title { color: #a9d4f5; }
.listen-sec .sec-head .ja-title { color: #7d93b8; }
.listen-lead {
  font-family: 'Shippori Mincho', serif;
  font-size: 1.05rem;
  letter-spacing: 0.18em;
  line-height: 2.4;
  margin-bottom: 48px;
  color: #d8e9fa;
}
.listen-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 18px;
}
.listen-links a {
  display: inline-block;
  padding: 15px 42px;
  border: 1px solid rgba(255,255,255,0.45);
  border-radius: 999px;
  color: var(--white);
  text-decoration: none;
  font-family: 'Cormorant Garamond', serif;
  letter-spacing: 0.2em;
  font-size: 0.92rem;
  backdrop-filter: blur(6px);
  background: rgba(255,255,255,0.06);
  transition: background 0.3s, transform 0.3s;
}
.listen-links a:hover {
  background: rgba(255,255,255,0.18);
  transform: translateY(-3px);
}
.stars {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}
.stars i {
  position: absolute;
  width: 3px; height: 3px;
  border-radius: 50%;
  background: rgba(255,255,255,0.85);
  box-shadow: 0 0 8px rgba(170, 215, 255, 0.9);
  animation: twinkle 4s ease-in-out infinite;
}
@keyframes twinkle {
  0%, 100% { opacity: 0.15; transform: scale(0.7); }
  50% { opacity: 1; transform: scale(1.15); }
}

/* ===== Footer ===== */
footer {
  background: var(--night);
  color: #8aa0c4;
  text-align: center;
  padding: 56px 7vw 42px;
  font-size: 0.72rem;
  letter-spacing: 0.2em;
}
footer .foot-logo {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.4rem;
  letter-spacing: 0.26em;
  color: var(--white);
  margin-bottom: 16px;
}

/* 高さの低いウィンドウや狭い画面ではパネル内ジャケットを隠してはみ出しを防ぐ */
@media (max-height: 600px), (max-width: 600px) {
  .hero-panel .panel-side { display: none; }
}

/* ===== トップのディスコグラフィー抜粋 ===== */
.disc-teaser-more {
  text-align: center;
  margin-top: 56px;
}

/* ===== Responsive ===== */
@media (max-width: 860px) {
  nav { gap: 16px; }
  nav a { font-size: 0.74rem; }
  section { padding: 80px 6vw; }
  .hero-panel {
    left: 5vw;
    right: 5vw;
    width: auto;
    bottom: 4svh;
    padding: 20px;
  }
  .about-grid { grid-template-columns: 1fr; gap: 36px; }
  .about-photo { aspect-ratio: 16 / 11; }
}