*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
:root{
  --navy:#0F1B2D;--navy-mid:#1A2D44;--gold:#B8953A;--gold-light:#D4AF5A;
  --gold-pale:#F5EDD8;--cream:#FAFAF7;--sand:#E8E0CC;
  --text:#1A1612;--muted:#6B6050;--rule:rgba(184,149,58,0.25);
}
body{font-family:'DM Sans',sans-serif;background:var(--navy);color:var(--text);}
header{
  background:var(--navy);padding:3.5rem 6vw 2.5rem;text-align:center;
  border-bottom:1px solid var(--rule);
}
header .en{font-family:'Playfair Display',serif;font-size:0.75rem;letter-spacing:0.25em;color:var(--gold);font-style:italic;margin-bottom:0.8rem;}
header h1{font-family:'Noto Serif JP',serif;font-size:1.4rem;font-weight:300;letter-spacing:0.1em;color:#fff;}
header .sub{font-size:0.78rem;letter-spacing:0.12em;color:rgba(255,255,255,0.55);margin-top:0.6rem;}
main{max-width:720px;margin:0 auto;padding:3rem 5vw 4rem;}

.back{
  display:inline-flex;align-items:center;gap:0.4rem;
  padding:0.5rem 1rem;
  font-size:0.75rem;letter-spacing:0.15em;
  color:rgba(255,255,255,0.7);
  border:1px solid rgba(255,255,255,0.25);
  text-decoration:none;transition:all .2s;
}
.back:hover{color:var(--gold);border-color:var(--gold);}
.back-top{margin-bottom:1.6rem;}

.speed-bar{
  display:flex;align-items:center;flex-wrap:wrap;gap:0.6rem;
  background:var(--cream);border:1px solid var(--sand);padding:1rem 1.2rem;margin-bottom:1.6rem;
}
.speed-bar .label{font-size:0.75rem;letter-spacing:0.12em;color:var(--muted);margin-right:0.4rem;}
.speed-btn{
  border:1px solid var(--sand);background:#fff;color:var(--navy);
  padding:0.45rem 0.9rem;font-size:0.8rem;cursor:pointer;font-family:inherit;
  transition:all 0.15s;
}
.speed-btn:hover{border-color:var(--gold);color:var(--gold);}
.speed-btn.active{background:var(--navy);color:#fff;border-color:var(--navy);}

.track{
  background:#fff;border-top:2px solid var(--gold);
  padding:1.4rem 1.6rem;margin-bottom:1.2rem;
}
.track-head{display:flex;justify-content:space-between;align-items:baseline;flex-wrap:wrap;gap:0.4rem;margin-bottom:1rem;}
.track-name{font-family:'Noto Serif JP',serif;font-size:0.95rem;font-weight:400;color:var(--navy);letter-spacing:0.04em;}
.track-rate{font-family:'Playfair Display',serif;font-size:0.8rem;color:var(--gold);letter-spacing:0.08em;}

/* ─── CUSTOM PLAYER ─── */
.player{display:flex;align-items:center;gap:1rem;}
.play-btn{
  flex:none;width:46px;height:46px;border-radius:50%;border:none;cursor:pointer;
  background:var(--navy);display:flex;align-items:center;justify-content:center;
  transition:background 0.2s;
}
.play-btn:hover{background:var(--gold);}
.play-btn svg{width:15px;height:15px;fill:#fff;display:block;}
.play-btn .icon-pause{display:none;}
.play-btn.playing .icon-play{display:none;}
.play-btn.playing .icon-pause{display:block;}
.play-btn.loading svg{display:none;}
.play-btn.loading::after{
  content:'';width:15px;height:15px;border-radius:50%;
  border:2px solid rgba(255,255,255,0.35);border-top-color:#fff;
  animation:btnSpin .8s linear infinite;
}
@keyframes btnSpin{to{transform:rotate(360deg);}}
.player-body{flex:1;min-width:0;}
.progress{
  position:relative;height:6px;background:var(--sand);border-radius:3px;
  cursor:pointer;touch-action:none;
}
.progress-fill{
  position:absolute;left:0;top:0;bottom:0;width:0%;
  background:linear-gradient(90deg,var(--gold),var(--gold-light));
  border-radius:3px;pointer-events:none;
}
.progress-knob{
  position:absolute;top:50%;left:0%;transform:translate(-50%,-50%);
  width:14px;height:14px;border-radius:50%;background:var(--gold);
  box-shadow:0 0 0 3px rgba(184,149,58,0.25);pointer-events:none;
}
.player-meta{
  display:flex;justify-content:space-between;align-items:center;
  gap:0.8rem;margin-top:0.7rem;flex-wrap:wrap;
}
.meta-actions{display:flex;align-items:center;gap:0.5rem;flex-wrap:wrap;}
.time{font-family:'Playfair Display',serif;font-size:0.82rem;letter-spacing:0.06em;color:var(--muted);}
.raw-link{
  display:inline-flex;align-items:center;gap:0.4rem;
  padding:0.4rem 0.9rem;
  font-size:0.68rem;letter-spacing:0.08em;color:var(--navy);
  border:1px solid var(--sand);background:#fff;text-decoration:none;
  transition:all 0.2s;
}
.raw-link:hover{border-color:var(--gold);color:var(--gold);}
.raw-link svg{width:12px;height:12px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;}
.dl-link{border-color:var(--gold);color:var(--gold);}
.dl-link:hover{background:var(--gold);color:#fff;}