/* BEI-HUB // CYBER_AUDIO_SPACE */
:root{
  --bg:#050505;
  --panel: rgba(10,10,12,.70);
  --panel2: rgba(8,10,12,.55);
  --border: rgba(255,255,255,.08);
  --text: rgba(255,255,255,.92);
  --muted: rgba(255,255,255,.62);

  --mood: #00f0ff;
  --mood-rgb: 0 240 255;
  --bass: 0;        /* 0..1 */
  --flare: 0;       /* 0..1 */

  --radius: 18px;
  --shadow: 0 18px 60px rgba(0,0,0,.55);
}

*{ box-sizing:border-box; }
html,body{ height:100%; }
body{
  margin:0;
  background: var(--bg);
  color: var(--text);
  font-family: "Noto Sans JP", system-ui, -apple-system, Segoe UI, sans-serif;
  overflow-x:hidden;
}

.bg{
  position:fixed;
  inset:0;
  z-index:-1;
  background:
    radial-gradient(1200px 700px at 30% 30%, rgba(var(--mood-rgb) / calc(.22 + var(--bass)*.25)), transparent 60%),
    radial-gradient(900px 600px at 70% 35%, rgba(var(--mood-rgb) / calc(.12 + var(--bass)*.18)), transparent 65%),
    radial-gradient(800px 520px at 50% 75%, rgba(255,255,255,.06), transparent 70%),
    linear-gradient(180deg, #050505, #06070a 55%, #050505);
  transition: background 600ms ease;
}

.vignette{
  position:absolute; inset:-2px;
  background: radial-gradient(1200px 800px at 50% 40%, transparent 50%, rgba(0,0,0,.78) 100%);
  pointer-events:none;
}

.particles{
  position:absolute; inset:0;
  pointer-events:none;
  opacity:.45;
  filter: blur(.2px);
  background-image:
    radial-gradient(1px 1px at 20% 30%, rgba(var(--mood-rgb)/.55) 60%, transparent 62%),
    radial-gradient(1px 1px at 80% 20%, rgba(255,255,255,.18) 60%, transparent 62%),
    radial-gradient(1px 1px at 65% 70%, rgba(var(--mood-rgb)/.35) 60%, transparent 62%),
    radial-gradient(1px 1px at 30% 80%, rgba(255,255,255,.14) 60%, transparent 62%);
  background-size: 320px 320px;
  animation: drift 10s linear infinite;
}

@keyframes drift{
  from{ transform: translate3d(0,0,0); }
  to{ transform: translate3d(-80px, 60px, 0); }
}

/* Endless grid floor */
.grid-floor{
  pointer-events:none;
  position:absolute;
  left:0; right:0; bottom:-10vh;
  height:65vh;
  transform-origin: 50% 100%;
  transform: perspective(900px) rotateX(62deg) translateY(calc(8px - var(--bass)*10px));
  opacity: calc(.62 + var(--bass)*.30);
  filter: drop-shadow(0 0 calc(12px + var(--bass)*26px) rgba(var(--mood-rgb)/.22));
}
.grid-floor::before{
  content:"";
  position:absolute; inset:0;
  background:
    linear-gradient(to right, rgba(var(--mood-rgb)/.30) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(var(--mood-rgb)/.26) 1px, transparent 1px);
  background-size: 52px 52px;
  animation: gridMove 1.6s linear infinite;
  mix-blend-mode: screen;
  mask-image: linear-gradient(to top, rgba(0,0,0,0) 0%, rgba(0,0,0,.9) 32%, rgba(0,0,0,1) 100%);
}
@keyframes gridMove{
  from{ transform: translateY(0); }
  to{ transform: translateY(60px); }
}

/* Topbar */
.topbar{
  position:sticky;
  top:0;
  z-index:10;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  padding:14px 18px;
  border-bottom:1px solid rgba(255,255,255,.06);
  background: linear-gradient(180deg, rgba(0,0,0,.55), rgba(0,0,0,.12));
  backdrop-filter: blur(10px);
}
.brand{
  font-family: "Orbitron", system-ui, sans-serif;
  font-weight: 800;
  letter-spacing:.08em;
  text-decoration:none;
  color: rgba(var(--mood-rgb)/.95);
  text-shadow: 0 0 18px rgba(var(--mood-rgb)/.22);
}
.topbar-right{
  display:flex;
  align-items:center;
  gap:12px;
}
.meta{
  font-family:"Orbitron", system-ui, sans-serif;
  font-size:12px;
  color: rgba(255,255,255,.55);
  letter-spacing:.08em;
}
.pill{
  display:flex;
  align-items:center;
  gap:10px;
  padding:6px 10px;
  border:1px solid rgba(255,255,255,.10);
  border-radius:999px;
  background: rgba(0,0,0,.35);
}
.dot{
  width:8px; height:8px;
  border-radius:50%;
  background: rgba(var(--mood-rgb)/.95);
  box-shadow: 0 0 14px rgba(var(--mood-rgb)/.45);
}

/* Layout */
.shell{
  width: min(1200px, calc(100% - 40px));
  margin: 18px auto 40px;
  display:grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 22px;
}

.left{ min-width:0; }
.right{
  min-width:0;
  display:flex;
  flex-direction:column;
  gap:14px;
}

/* Visualizer */
.viz-wrap{
  position:relative;
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(255,255,255,.03), rgba(0,0,0,.10));
  border:1px solid rgba(255,255,255,.06);
  box-shadow: var(--shadow);
  overflow:hidden;
  padding: 16px;
  height: min(520px, 52vh);
}
#viz{
  width:100%;
  height:100%;
  display:block;
  cursor: pointer;
}
.viz-aura{
  position:absolute; inset:0;
  pointer-events:none;
  background:
    radial-gradient(600px 420px at 50% 50%, rgba(var(--mood-rgb)/calc(.10 + var(--bass)*.30)), transparent 60%),
    radial-gradient(420px 280px at 50% 50%, rgba(var(--mood-rgb)/calc(.06 + var(--flare)*.20)), transparent 70%);
  mix-blend-mode: screen;
}
.viz-hint{
  position:absolute;
  left:14px; right:14px; bottom:10px;
  display:flex;
  justify-content:space-between;
  font-size:12px;
  color: rgba(255,255,255,.45);
  text-shadow: 0 0 10px rgba(0,0,0,.6);
  pointer-events:none;
}

/* Player */
.player{
  margin-top:14px;
  border-radius: var(--radius);
  background: var(--panel);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  overflow:hidden;
}
.timeline{
  display:grid;
  grid-template-columns: 52px 1fr 52px;
  align-items:center;
  gap:12px;
  padding:12px 14px;
  border-bottom:1px solid rgba(255,255,255,.06);
}
.time{
  font-family:"Orbitron", system-ui, sans-serif;
  font-size:12px;
  color: rgba(255,255,255,.7);
}
.bar{
  position:relative;
  height:10px;
}
#progress{
  width:100%;
  margin:0;
  -webkit-appearance:none;
  appearance:none;
  height:6px;
  background: rgba(255,255,255,.10);
  border-radius:999px;
  outline:none;
}
#progress::-webkit-slider-thumb{
  -webkit-appearance:none;
  width:12px; height:12px;
  border-radius:50%;
  background: rgba(var(--mood-rgb)/.95);
  box-shadow: 0 0 16px rgba(var(--mood-rgb)/.45);
  border:1px solid rgba(0,0,0,.35);
}
.fill{
  position:absolute;
  left:0; top:2px;
  height:6px;
  width:0%;
  border-radius:999px;
  background: rgba(var(--mood-rgb)/.65);
  pointer-events:none;
  filter: drop-shadow(0 0 12px rgba(var(--mood-rgb)/.25));
}

.controls{
  padding:12px 14px 14px;
  display:flex;
  flex-direction:column;
  gap:12px;
}
.main-controls{
  display:flex;
  align-items:center;
  justify-content:center;
  gap:10px;
}
.ctl-btn, .play-btn{
  border:1px solid rgba(255,255,255,.10);
  background: rgba(0,0,0,.35);
  color: rgba(255,255,255,.85);
  border-radius: 999px;
  width:46px;
  height:46px;
  cursor:pointer;
  transition: transform .12s ease, border-color .2s ease, box-shadow .2s ease, background .2s ease;
  user-select:none;
}
.play-btn{
  width:60px; height:60px;
  border-color: rgba(var(--mood-rgb)/.35);
  box-shadow: 0 0 0 2px rgba(var(--mood-rgb)/.10) inset, 0 0 24px rgba(var(--mood-rgb)/.12);
  color: rgba(var(--mood-rgb)/.95);
  font-size:18px;
}
.ctl-btn:hover, .play-btn:hover{ transform: translateY(-1px); }
.ctl-btn:active, .play-btn:active{ transform: translateY(0px) scale(.98); }
.ctl-btn.is-on{
  border-color: rgba(var(--mood-rgb)/.6);
  box-shadow: 0 0 18px rgba(var(--mood-rgb)/.30);
  color: rgba(var(--mood-rgb)/.95);
}

.sub-controls{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding-top:2px;
}
.chip{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:8px 10px;
  border-radius:999px;
  border:1px solid rgba(255,255,255,.10);
  background: rgba(0,0,0,.25);
  color: rgba(255,255,255,.72);
  cursor:pointer;
}
.mini-dot{
  width:8px; height:8px;
  border-radius:50%;
  background: rgba(var(--mood-rgb)/.95);
  box-shadow: 0 0 14px rgba(var(--mood-rgb)/.35);
}
.vol{
  display:flex;
  align-items:center;
  gap:10px;
}
.vol-label{
  font-family:"Orbitron", system-ui, sans-serif;
  font-size:12px;
  color: rgba(255,255,255,.65);
}
#volume{
  width: 180px;
  accent-color: var(--mood);
}

.kbd{
  margin-top:12px;
  display:flex;
  gap:10px;
  align-items:center;
  justify-content:center;
  flex-wrap:wrap;
  color: rgba(255,255,255,.45);
  font-size:12px;
}
.kbd-key{
  font-family:"Orbitron", system-ui, sans-serif;
  font-size:11px;
  padding:2px 8px;
  border-radius:8px;
  border:1px solid rgba(255,255,255,.10);
  background: rgba(0,0,0,.25);
}

/* Right side */
.track-header{
  padding: 10px 6px 2px;
}
.badge{
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding:6px 10px;
  border:1px solid rgba(255,255,255,.10);
  border-radius:999px;
  background: rgba(0,0,0,.25);
  margin-bottom:8px;
  font-family:"Orbitron", system-ui, sans-serif;
  font-size:12px;
  letter-spacing:.08em;
  color: rgba(255,255,255,.70);
}
#track-title{
  margin:0;
  font-family:"Orbitron", system-ui, sans-serif;
  font-weight: 800;
  letter-spacing:.06em;
  font-size: clamp(34px, 4.8vw, 56px);
  line-height:1.02;
  text-shadow: 0 0 28px rgba(var(--mood-rgb)/.10);
}
.artist-row{
  margin-top:10px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
}
.artist{
  color: rgba(255,255,255,.72);
  font-weight:600;
}
.share{
  border:1px solid rgba(var(--mood-rgb)/.35);
  background: rgba(0,0,0,.35);
  color: rgba(var(--mood-rgb)/.95);
  padding:10px 14px;
  border-radius:999px;
  cursor:pointer;
  font-family:"Orbitron", system-ui, sans-serif;
  letter-spacing:.06em;
  transition: transform .12s ease, box-shadow .2s ease;
}
.share:hover{ transform: translateY(-1px); box-shadow: 0 0 20px rgba(var(--mood-rgb)/.30); }

.panel{
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow:hidden;
  min-height:0;
  display:flex;
  flex-direction:column;
}
.panel-title{
  display:flex;
  justify-content:space-between;
  align-items:center;
  padding:10px 12px;
  border-bottom:1px solid rgba(255,255,255,.06);
  font-family:"Orbitron", system-ui, sans-serif;
  font-size:12px;
  letter-spacing:.10em;
  color: rgba(255,255,255,.65);
}
.panel-sub{
  font-family:"Noto Sans JP", system-ui, sans-serif;
  font-size:11px;
  letter-spacing:0;
  color: rgba(255,255,255,.45);
}

/* Lyrics smaller */
.lyrics-panel{
  flex: 0 0 auto;
  max-height: 44vh;
}
.lyrics-scroll{
  flex:1;
  min-height:0;
  overflow:auto;
  padding: 12px 14px 14px;

  white-space: pre-line;
  word-break: break-word;
}
.lyrics-content{
  color: rgba(255,255,255,.82);
  font-size: 14px;
  line-height: 1.85;
}
.lyrics-content .line{
  display:block;
  padding: 2px 4px;
  border-radius: 8px;
  cursor: copy;
}
.lyrics-content .line:hover{
  background: rgba(var(--mood-rgb)/.12);
}

/* Playlist bigger */
.playlist-panel{
  flex: 1 1 auto;
  min-height: 220px;
}
.search-row{
  padding: 10px 12px 10px;
  display:flex;
  gap:10px;
  align-items:center;
  justify-content:space-between;
}
.search{
  position:relative;
  flex:1;
  display:flex;
  align-items:center;
  gap:8px;
  border:1px solid rgba(255,255,255,.10);
  background: rgba(0,0,0,.25);
  border-radius: 999px;
  padding: 8px 10px;
}
.search-ico{ color: rgba(255,255,255,.55); }
#search{
  width:100%;
  border:none;
  outline:none;
  background: transparent;
  color: rgba(255,255,255,.88);
  font-size: 13px;
}
.xbtn{
  border:none;
  background: rgba(255,255,255,.10);
  color: rgba(255,255,255,.75);
  border-radius: 10px;
  width:26px; height:26px;
  cursor:pointer;
}
.count{
  font-family:"Orbitron", system-ui, sans-serif;
  font-size:12px;
  color: rgba(255,255,255,.55);
  min-width: 64px;
  text-align:right;
}
.tags{
  padding: 0 12px 10px;
  display:flex;
  flex-wrap:wrap;
  gap:8px;
}
.tag{
  padding: 6px 10px;
  border-radius: 999px;
  border:1px solid rgba(255,255,255,.10);
  background: rgba(0,0,0,.22);
  color: rgba(255,255,255,.70);
  cursor:pointer;
  font-family:"Orbitron", system-ui, sans-serif;
  font-size: 11px;
  letter-spacing:.06em;
  user-select:none;
}
.tag.active{
  border-color: rgba(var(--mood-rgb)/.55);
  color: rgba(var(--mood-rgb)/.95);
  box-shadow: 0 0 18px rgba(var(--mood-rgb)/.14);
}
.playlist-scroll{
  flex:1;
  min-height:0;
  overflow:auto;
  padding: 0 10px 12px;
}
.playlist{
  list-style:none;
  padding: 0;
  margin: 0;
}
.playlist li{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding: 10px 10px;
  border-radius: 12px;
  border:1px solid transparent;
  color: rgba(255,255,255,.86);
  cursor:pointer;
  user-select:none;
}
.playlist li:hover{
  background: rgba(255,255,255,.04);
  border-color: rgba(255,255,255,.08);
}
.playlist li.active{
  background: rgba(var(--mood-rgb)/.10);
  border-color: rgba(var(--mood-rgb)/.30);
}
.playlist .meta2{
  color: rgba(255,255,255,.55);
  font-size: 12px;
  white-space:nowrap;
}

/* Toast */
.toast{
  position: fixed;
  left:50%;
  bottom: 26px;
  transform: translateX(-50%) translateY(10px);
  background: rgba(0,0,0,.66);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 999px;
  padding: 10px 14px;
  box-shadow: 0 16px 50px rgba(0,0,0,.55);
  color: rgba(255,255,255,.88);
  font-family:"Orbitron", system-ui, sans-serif;
  letter-spacing:.06em;
  opacity: 0;
  pointer-events:none;
  transition: opacity .2s ease, transform .2s ease;
}
.toast.show{
  opacity: 1;
  transform: translateX(-50%) translateY(0px);
}
.toast.is-error{
  border-color: rgba(255,70,70,.30);
  color: rgba(255,210,210,.92);
}

/* Responsive */
@media (max-width: 980px){
  .shell{ grid-template-columns: 1fr; }
  .viz-wrap{ height: 44vh; }
  #volume{ width: 160px; }
  .artist-row{ flex-direction:column; align-items:flex-start; }
  .share{ width: 100%; text-align:center; }
  .lyrics-panel{ max-height: 36vh; }
}

/* Lyrics linebreak fix */
#lyrics-content .line{ display:block; }