/* ── Overlay ── */
#music-modal-overlay {
  position:fixed;inset:0;z-index:9000;
  background:rgba(0,0,0,0.75);
  backdrop-filter:blur(8px);
  display:none;align-items:flex-end;justify-content:center;
  opacity:0;transition:opacity 0.3s ease;
}
#music-modal-overlay.open { display:flex;opacity:1; }
/* ── Sheet ── */
#music-modal-sheet {
  width:100%;max-width:520px;
  background:linear-gradient(160deg,#13111f 0%,#0f0e1a 100%);
  border:1px solid rgba(139,92,246,0.2);
  border-radius:28px 28px 0 0;
  padding:0 0 32px 0;
  transform:translateY(100%);
  transition:transform 0.4s cubic-bezier(0.34,1.2,0.64,1);
  position:relative;overflow:hidden;
  box-shadow:0 -8px 60px rgba(99,102,241,0.25);
}
#music-modal-overlay.open #music-modal-sheet { transform:translateY(0); }
/* گرادیان پس‌زمینه زیبا */
#music-modal-sheet::before {
  content:'';position:absolute;inset:0;
  background:radial-gradient(ellipse at 20% 0%,rgba(139,92,246,0.18) 0%,transparent 60%),
             radial-gradient(ellipse at 80% 0%,rgba(99,102,241,0.12) 0%,transparent 55%);
  pointer-events:none;z-index:0;
}
/* handle */
.mmp-handle {
  width:40px;height:4px;
  background:rgba(255,255,255,0.15);
  border-radius:2px;margin:14px auto 0;
}
/* header */
.mmp-header {
  position:relative;z-index:1;
  display:flex;align-items:center;justify-content:space-between;
  padding:18px 20px 14px;
}
.mmp-title {
  font-size:16px;font-weight:900;color:#e2e8f0;
  font-family:var(--font);letter-spacing:0.3px;
  display:flex;align-items:center;gap:8px;
}
.mmp-title-icon {
  width:32px;height:32px;border-radius:10px;
  background:linear-gradient(135deg,#7c3aed,#6366f1);
  display:flex;align-items:center;justify-content:center;
  font-size:16px;box-shadow:0 4px 12px rgba(99,102,241,0.4);
}
.mmp-close {
  background:rgba(255,255,255,0.07);border:none;
  color:rgba(255,255,255,0.5);font-size:18px;
  width:32px;height:32px;border-radius:10px;
  cursor:pointer;display:flex;align-items:center;justify-content:center;
  transition:all 0.2s;font-family:var(--font);
}
.mmp-close:hover { background:rgba(255,255,255,0.12);color:#fff; }
/* tabs */
.mmp-tabs {
  position:relative;z-index:1;
  display:flex;gap:6px;padding:0 20px 14px;overflow-x:auto;
  scrollbar-width:none;
}
.mmp-tabs::-webkit-scrollbar { display:none; }
.mmp-tab {
  padding:7px 14px;border-radius:20px;
  background:rgba(255,255,255,0.06);
  border:1px solid rgba(255,255,255,0.08);
  color:rgba(255,255,255,0.5);font-size:12px;font-weight:700;
  cursor:pointer;white-space:nowrap;font-family:var(--font);
  transition:all 0.25s;flex-shrink:0;
}
.mmp-tab.active {
  background:linear-gradient(135deg,rgba(139,92,246,0.3),rgba(99,102,241,0.2));
  border-color:rgba(139,92,246,0.5);color:#c4b5fd;
  box-shadow:0 2px 12px rgba(99,102,241,0.2);
}
/* separator */
.mmp-sep {
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(139,92,246,0.3),rgba(99,102,241,0.2),transparent);
  margin:0 20px 14px;position:relative;z-index:1;
}
/* now playing */
#mmp-now-playing-bar {
  position:relative;z-index:1;
  margin:0 20px 16px;
  padding:14px 16px;
  background:rgba(139,92,246,0.1);
  border:1px solid rgba(139,92,246,0.2);
  border-radius:16px;display:none;
}
.mmp-np-label { font-size:10px;color:rgba(167,139,250,0.6);font-family:var(--font);margin-bottom:5px;font-weight:700;letter-spacing:0.5px; }
.mmp-np-title { font-size:13px;color:#c4b5fd;font-family:var(--font);font-weight:900;margin-bottom:10px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis; }
/* progress bar */
.mmp-progress-wrap { position:relative;height:4px;background:rgba(255,255,255,0.08);border-radius:2px;cursor:pointer;margin-bottom:10px; }
#mmp-progress-bar { height:100%;background:linear-gradient(90deg,#7c3aed,#6366f1);border-radius:2px;width:0%;transition:width 0.5s linear; }
#mmp-progress-dot {
  position:absolute;top:50%;right:0%;transform:translate(50%,-50%);
  width:10px;height:10px;border-radius:50%;
  background:#a78bfa;box-shadow:0 0 8px rgba(167,139,250,0.8);
  transition:right 0.5s linear;
}
.mmp-np-time { display:flex;justify-content:space-between;font-size:10px;color:rgba(255,255,255,0.3);font-family:var(--font); }
/* controls */
.mmp-controls { display:flex;align-items:center;justify-content:center;gap:16px;margin-top:2px; }
.mmp-ctrl-btn {
  background:none;border:none;cursor:pointer;
  color:rgba(255,255,255,0.5);font-size:20px;
  transition:all 0.2s;padding:4px;line-height:1;
}
.mmp-ctrl-btn:hover { color:#a78bfa;transform:scale(1.15); }
#mmp-play-pause-btn {
  width:42px;height:42px;border-radius:50%;
  background:linear-gradient(135deg,#7c3aed,#6366f1);
  border:none;cursor:pointer;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 4px 16px rgba(99,102,241,0.45);
  font-size:16px;transition:all 0.25s cubic-bezier(0.34,1.56,0.64,1);
  position:relative;overflow:hidden;
}
#mmp-play-pause-btn::after {
  content:'';position:absolute;inset:0;border-radius:50%;
  background:linear-gradient(135deg,rgba(255,255,255,0.2),transparent);
}
#mmp-play-pause-btn:hover { transform:scale(1.1);box-shadow:0 6px 24px rgba(99,102,241,0.6); }
#mmp-play-pause-btn.playing { animation:mmpPulse 2s ease-in-out infinite; }
@keyframes mmpPulse {
  0%,100% { box-shadow:0 4px 16px rgba(99,102,241,0.45); }
  50% { box-shadow:0 4px 28px rgba(99,102,241,0.75),0 0 0 8px rgba(99,102,241,0.1); }
}
/* track list */
#mmp-track-list {
  position:relative;z-index:1;
  max-height:220px;overflow-y:auto;
  padding:0 20px;scrollbar-width:thin;
  scrollbar-color:rgba(139,92,246,0.3) transparent;
}
#mmp-track-list::-webkit-scrollbar { width:3px; }
#mmp-track-list::-webkit-scrollbar-thumb { background:rgba(139,92,246,0.3);border-radius:2px; }
.mmp-track {
  display:flex;align-items:center;gap:12px;
  padding:10px 12px;border-radius:12px;
  cursor:pointer;transition:all 0.2s;margin-bottom:4px;
}
.mmp-track:hover { background:rgba(255,255,255,0.05); }
.mmp-track.active { background:rgba(139,92,246,0.12);border:1px solid rgba(139,92,246,0.2); }
.mmp-track-num {
  font-size:11px;color:rgba(255,255,255,0.2);
  width:18px;text-align:center;font-family:var(--font);flex-shrink:0;
}
.mmp-track.active .mmp-track-num { color:#a78bfa; }
.mmp-track-icon {
  width:34px;height:34px;border-radius:10px;flex-shrink:0;
  background:rgba(255,255,255,0.06);
  display:flex;align-items:center;justify-content:center;font-size:14px;
}
.mmp-track.active .mmp-track-icon {
  background:linear-gradient(135deg,rgba(124,58,237,0.3),rgba(99,102,241,0.2));
}
.mmp-track-name {
  flex:1;font-size:13px;color:rgba(255,255,255,0.7);
  font-family:var(--font);font-weight:700;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.mmp-track.active .mmp-track-name { color:#c4b5fd; }
/* equalizer bars روی ترک فعال */
.mmp-eq {
  display:none;gap:2px;align-items:flex-end;height:16px;flex-shrink:0;
}
.mmp-track.active .mmp-eq { display:flex; }
.mmp-eq span {
  width:3px;border-radius:1px;background:#a78bfa;
  animation:mmpEq 0.8s ease-in-out infinite alternate;
}
.mmp-eq span:nth-child(1){height:6px;animation-delay:0s;}
.mmp-eq span:nth-child(2){height:12px;animation-delay:0.15s;}
.mmp-eq span:nth-child(3){height:8px;animation-delay:0.3s;}
.mmp-eq span:nth-child(4){height:14px;animation-delay:0.1s;}
@keyframes mmpEq {
  from { transform:scaleY(0.4); }
  to   { transform:scaleY(1); }
}
/* empty state */
.mmp-empty {
  text-align:center;padding:32px 20px;
  color:rgba(255,255,255,0.25);font-size:13px;font-family:var(--font);
}
.mmp-empty-icon { font-size:36px;margin-bottom:10px; }