/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

/* ── 80s Design Tokens ── */
:root {
  --bg:          #0a0a14;
  --bg-panel:    #0f0f1e;
  --bg-elevated: #161628;
  --border:      #1e1e3a;
  --border-hi:   #2e2e5a;

  /* Neons */
  --pink:        #ff2d78;
  --pink-glow:   rgba(255,45,120,0.35);
  --cyan:        #00e5ff;
  --cyan-glow:   rgba(0,229,255,0.25);
  --yellow:      #ffe600;
  --yellow-glow: rgba(255,230,0,0.25);
  --purple:      #b44dff;

  /* Cassette body */
  --cassette:    #111118;
  --cassette-hi: #1a1a28;
  --cassette-lo: #0a0a10;
  --reel-bg:     #0d0d1a;
  --tape-color:  #2a1a0a;

  --text:        #e0e0ff;
  --text-dim:    #5a5a8a;
  --text-mid:    #9090c0;
  --danger:      #ff3333;

  --radius:      6px;
}

/* ── Scanline overlay on whole page ── */
body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Courier New', Courier, monospace;
  min-height: 100vh;
  overflow-x: hidden;
  user-select: none;
}
body::after {
  content: '';
  position: fixed;
  inset: 0;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0,0,0,0.07) 2px,
    rgba(0,0,0,0.07) 4px
  );
  pointer-events: none;
  z-index: 9999;
}

#app { display: flex; flex-direction: column; min-height: 100vh; }

/* ── Header ── */
#header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 22px;
  border-bottom: 1px solid var(--border);
  background: linear-gradient(180deg, #0f0f22 0%, #0a0a14 100%);
  flex-shrink: 0;
}

#logo {
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 5px;
  color: var(--cyan);
  text-shadow: 0 0 18px var(--cyan-glow), 0 0 40px var(--cyan-glow);
  text-transform: uppercase;
}

/* VU Meter */
#vu-meter {
  display: flex;
  gap: 3px;
  align-items: flex-end;
  height: 24px;
}
.vu-bar {
  width: 6px;
  border-radius: 2px 2px 0 0;
  background: var(--cyan);
  height: 4px;
  transition: height 0.06s ease-out;
  box-shadow: 0 0 6px var(--cyan-glow);
}

/* ── Layout ── */
#main-layout { display: flex; flex: 1; overflow: hidden; }

/* ─────────────────────────────────────
   LEFT – Player
───────────────────────────────────── */
#player-panel {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 24px 20px 18px;
  min-width: 340px;
  width: 380px;
  border-right: 1px solid var(--border);
  background: radial-gradient(ellipse at 50% 0%, #0f0f2a 0%, #0a0a14 70%);
  flex-shrink: 0;
}

/* ── Cassette wrap ── */
#cassette-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  margin-bottom: 18px;
}

/* ── Cassette body ── */
#cassette-body {
  position: relative;
  width: 340px;
  height: 210px;
  background: linear-gradient(160deg, var(--cassette-hi) 0%, var(--cassette) 40%, var(--cassette-lo) 100%);
  border-radius: 10px;
  border: 1.5px solid #252535;
  box-shadow:
    0 0 0 1px #0a0a12,
    0 0 30px rgba(0,229,255,0.06),
    inset 0 1px 0 rgba(255,255,255,0.04),
    inset 0 -1px 0 rgba(0,0,0,0.3),
    6px 8px 20px rgba(0,0,0,0.7);
}

/* Corner screws */
.screw {
  position: absolute;
  width: 10px; height: 10px;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 30%, #666, #222);
  box-shadow: 0 0 0 1px #111, inset 0 1px 1px rgba(255,255,255,0.1);
  z-index: 2;
}
.screw-tl { top: 7px;  left: 7px; }
.screw-tr { top: 7px;  right: 7px; }
.screw-bl { bottom: 7px; left: 7px; }
.screw-br { bottom: 7px; right: 7px; }
.screw::after {
  content: '';
  position: absolute;
  top: 50%; left: 15%;
  width: 70%; height: 1.5px;
  background: rgba(0,0,0,0.6);
  transform: translateY(-50%) rotate(45deg);
  border-radius: 1px;
}

/* Label */
#cassette-label {
  position: absolute;
  top: 24px;
  left: 24px; right: 24px;
  height: 46px;
  border-radius: 4px;
  background: linear-gradient(135deg, #1a0a2e 0%, #0d0a1e 100%);
  border: 1px solid #2a1a4e;
  overflow: hidden;
}
#label-stripe {
  height: 5px;
  background: linear-gradient(90deg, var(--pink), var(--purple), var(--cyan));
  box-shadow: 0 0 8px var(--pink-glow);
}
#label-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 4px 10px;
}
#label-side {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 3px;
  color: var(--cyan);
  text-shadow: 0 0 8px var(--cyan-glow);
}
#label-title {
  font-size: 0.68rem;
  color: var(--text);
  max-width: 160px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  letter-spacing: 1px;
}
#label-type {
  font-size: 0.6rem;
  color: var(--text-dim);
  letter-spacing: 2px;
}

/* Reel row */
#reel-row {
  position: absolute;
  bottom: 34px;
  left: 18px; right: 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0;
}

.reel-window {
  width: 96px; height: 96px;
  border-radius: 50%;
  background: var(--reel-bg);
  border: 2px solid #1e1e32;
  box-shadow:
    inset 0 2px 8px rgba(0,0,0,0.8),
    inset 0 0 3px rgba(0,229,255,0.04);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  position: relative;
}

/* Tape ring around reel (shows how much tape is left/taken) */
.reel-tape-ring {
  position: absolute;
  border-radius: 50%;
  border: 10px solid var(--tape-color);
  transition: width 0.5s ease, height 0.5s ease;
  box-shadow: inset 0 0 4px rgba(0,0,0,0.5);
}
#tape-ring-left  { width: 88px; height: 88px; }
#tape-ring-right { width: 60px; height: 60px; }

.reel {
  width: 82px; height: 82px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  will-change: transform;
}

.reel-hub {
  width: 44px; height: 44px;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 30%, #333, #111);
  border: 1px solid #2a2a2a;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.spoke {
  position: absolute;
  width: 2px;
  height: 40px;
  background: linear-gradient(180deg, #444, #222);
  border-radius: 1px;
  top: 50%;
  left: 50%;
  transform-origin: top center;
}
.spoke:nth-child(1) { transform: translateX(-50%) rotate(0deg)   translateY(-100%); }
.spoke:nth-child(2) { transform: translateX(-50%) rotate(120deg) translateY(-100%); }
.spoke:nth-child(3) { transform: translateX(-50%) rotate(240deg) translateY(-100%); }

.hub-center {
  position: absolute;
  width: 12px; height: 12px;
  border-radius: 50%;
  background: radial-gradient(circle at 40% 35%, #888, #444);
  box-shadow: 0 0 0 1px #222;
  z-index: 2;
}

/* Tape bridge (between the two reel windows) */
#tape-bridge {
  flex: 1;
  position: relative;
  height: 96px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 30px 0 26px;
}
#tape-line-top, #tape-line-bot {
  height: 2px;
  background: linear-gradient(90deg, var(--tape-color), #3a2510, var(--tape-color));
  border-radius: 1px;
  box-shadow: 0 0 4px rgba(180,120,40,0.15);
}
.capstan {
  position: absolute;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 30%, #888, #444);
  box-shadow: 0 0 0 1px #222;
}
#capstan-left  { left: 4px;  top: 50%; transform: translateY(-50%); }
#capstan-right { right: 4px; top: 50%; transform: translateY(-50%); }

/* Bottom strip (head access) */
#cassette-bottom-strip {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 30px;
  border-top: 1px solid #252535;
  background: linear-gradient(180deg, #0e0e1c, #0a0a14);
  border-radius: 0 0 10px 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
}
#head-cutout {
  flex: 1;
  display: flex;
  justify-content: center;
  align-items: center;
}
#head-slot {
  width: 80px; height: 12px;
  background: #060608;
  border-radius: 3px;
  border: 1px solid #1a1a28;
  box-shadow: inset 0 2px 4px rgba(0,0,0,0.8);
}
#spindle-holes {
  display: flex;
  gap: 120px;
  position: absolute;
  left: 50%; top: 50%;
  transform: translate(-50%, -50%);
}
.spindle-hole {
  width: 10px; height: 10px;
  border-radius: 50%;
  background: #060608;
  border: 1px solid #1a1a28;
  box-shadow: inset 0 1px 3px rgba(0,0,0,0.8);
}

/* ── Tape position bar ── */
#tape-pos-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 340px;
}
.tape-pos-label { font-size: 0.6rem; color: var(--text-dim); }
#tape-pos-track {
  flex: 1;
  height: 5px;
  background: #1a1a2a;
  border-radius: 3px;
  position: relative;
  cursor: pointer;
  border: 1px solid var(--border);
}
#tape-pos-fill {
  position: absolute;
  left: 0; top: 0; bottom: 0;
  background: linear-gradient(90deg, var(--pink), var(--cyan));
  border-radius: 3px;
  width: 0%;
  box-shadow: 0 0 6px var(--pink-glow);
  pointer-events: none;
}
#tape-pos-track::after {
  content: '';
  position: absolute;
  top: 50%; transform: translate(-50%, -50%);
  width: 13px; height: 13px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 8px var(--cyan-glow);
  pointer-events: none;
  left: var(--thumb-pct, 0%);
}
#seek-bar {
  position: absolute;
  inset: -8px 0;
  width: 100%;
  height: calc(100% + 16px);
  opacity: 0;
  cursor: pointer;
  -webkit-appearance: none;
  appearance: none;
}

/* ── Track info ── */
#track-info {
  width: 100%;
  text-align: center;
  margin-bottom: 12px;
}
#track-title {
  font-size: 0.85rem;
  letter-spacing: 2px;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-bottom: 4px;
  text-transform: uppercase;
}
#time-row {
  display: flex;
  justify-content: space-between;
  font-size: 0.7rem;
  color: var(--text-dim);
  font-variant-numeric: tabular-nums;
  letter-spacing: 1px;
}

/* ── Controls ── */
#controls {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  justify-content: center;
}
#controls button {
  background: var(--bg-elevated);
  border: 1px solid var(--border-hi);
  color: var(--text-mid);
  padding: 8px 14px;
  border-radius: var(--radius);
  cursor: pointer;
  font-family: inherit;
  font-size: 0.85rem;
  letter-spacing: 1px;
  transition: all 0.1s;
}
#controls button:hover {
  border-color: var(--cyan);
  color: var(--cyan);
  box-shadow: 0 0 10px var(--cyan-glow);
}
.btn-play-main {
  font-size: 1.2rem !important;
  padding: 9px 22px !important;
  background: linear-gradient(135deg, #1a0028, #0a001a) !important;
  border-color: var(--pink) !important;
  color: var(--pink) !important;
  box-shadow: 0 0 14px var(--pink-glow), inset 0 0 10px rgba(255,45,120,0.05) !important;
}
.btn-play-main.playing {
  color: var(--cyan) !important;
  border-color: var(--cyan) !important;
  box-shadow: 0 0 14px var(--cyan-glow), inset 0 0 10px rgba(0,229,255,0.05) !important;
}

#vol-wrap { display: flex; align-items: center; gap: 6px; margin-left: 6px; }
#vol-icon {
  background: none; border: none;
  color: var(--text-dim); cursor: pointer; font-size: 0.85rem; padding: 4px;
}
#vol-track {
  width: 72px; height: 4px;
  background: var(--border);
  border-radius: 2px;
  position: relative; cursor: pointer;
}
#vol-fill {
  position: absolute; left: 0; top: 0; bottom: 0;
  background: var(--cyan); border-radius: 2px;
  width: 80%; pointer-events: none;
  box-shadow: 0 0 5px var(--cyan-glow);
}
#vol-track::after {
  content: '';
  position: absolute; top: 50%; transform: translate(-50%, -50%);
  width: 11px; height: 11px;
  border-radius: 50%; background: var(--cyan);
  box-shadow: 0 0 8px var(--cyan-glow);
  pointer-events: none;
  left: var(--vol-pct, 80%);
}
#vol-bar {
  position: absolute; inset: -7px 0;
  width: 100%; height: calc(100% + 14px);
  opacity: 0; cursor: pointer;
  -webkit-appearance: none; appearance: none;
}

/* ─────────────────────────────────────
   RIGHT panel
───────────────────────────────────── */
#right-panel { flex: 1; display: flex; flex-direction: column; overflow-x: hidden; min-width: 0; }

.panel-label {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 4px;
  color: var(--pink);
  text-shadow: 0 0 8px var(--pink-glow);
}

/* ── Playlist ── */
#playlist-panel {
  flex: 1; display: flex; flex-direction: column;
  overflow: hidden; border-bottom: 1px solid var(--border);
}
#playlist-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 18px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-panel);
  flex-shrink: 0;
}
#pl-actions { display: flex; gap: 6px; }
#pl-actions button {
  background: var(--bg-elevated); border: 1px solid var(--border-hi);
  color: var(--text-dim); padding: 4px 10px; border-radius: var(--radius);
  cursor: pointer; font-family: inherit; font-size: 0.68rem; letter-spacing: 1px;
  transition: all 0.1s;
}
#pl-actions button:hover { border-color: var(--cyan); color: var(--cyan); }

#drop-zone {
  flex: 1; overflow-y: auto; position: relative;
}
#drop-zone.drag-over {
  background: rgba(0,229,255,0.03);
  outline: 2px dashed var(--cyan); outline-offset: -3px;
}
#drop-hint {
  display: flex; flex-direction: column; align-items: center;
  justify-content: center; height: 130px; gap: 5px; pointer-events: none;
}
#drop-hint p { font-size: 0.8rem; color: var(--text-dim); letter-spacing: 2px; }
#drop-hint small { font-size: 0.65rem; color: var(--text-dim); opacity: .5; }
#drop-hint.hidden { display: none; }
#playlist-list { list-style: none; padding: 4px 0; }

.pl-item {
  display: flex; align-items: center; gap: 10px;
  padding: 7px 16px;
  cursor: pointer; border-bottom: 1px solid rgba(30,30,58,0.5);
  transition: background 0.1s;
  font-family: inherit;
}
.pl-item:hover { background: var(--bg-elevated); }
.pl-item.active {
  background: rgba(0,229,255,0.06);
  border-left: 2px solid var(--cyan);
  padding-left: 14px;
}
.pl-item.active .pi-name {
  color: var(--cyan);
  text-shadow: 0 0 8px var(--cyan-glow);
}
.pi-num { font-size: 0.65rem; color: var(--text-dim); min-width: 18px; text-align: right; }
.pi-name { flex: 1; font-size: 0.78rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; letter-spacing: 0.5px; }
.pi-dur { font-size: 0.65rem; color: var(--text-dim); font-variant-numeric: tabular-nums; min-width: 34px; text-align: right; }
.pi-del {
  opacity: 0; background: none; border: none; color: var(--danger);
  cursor: pointer; font-size: 0.75rem; padding: 2px 5px; border-radius: 3px;
  transition: opacity 0.12s; flex-shrink: 0;
}
.pl-item:hover .pi-del { opacity: 1; }
.pi-del:hover { background: rgba(255,51,51,0.15); }

/* ── Effects ── */
#effects-panel {
  padding: 14px 18px 22px;
  background: var(--bg-panel); flex-shrink: 0;
  border-top: 1px solid var(--border);
}
#presets-row { display: flex; gap: 5px; margin: 10px 0 14px; flex-wrap: wrap; }
.preset-btn {
  background: var(--bg-elevated); border: 1px solid var(--border-hi);
  color: var(--text-dim); padding: 4px 10px; border-radius: var(--radius);
  cursor: pointer; font-family: inherit; font-size: 0.68rem; letter-spacing: 1.5px;
  transition: all 0.12s;
}
.preset-btn:hover { border-color: var(--pink); color: var(--pink); }
.preset-btn.active {
  background: rgba(255,45,120,0.12);
  border-color: var(--pink); color: var(--pink);
  box-shadow: 0 0 10px var(--pink-glow);
}

#effect-sliders { display: flex; flex-direction: column; gap: 8px; }
.slider-row { display: flex; align-items: center; gap: 10px; }
.slider-row label {
  font-size: 0.65rem; color: var(--text-mid); min-width: 82px;
  letter-spacing: 1.5px;
}
.sl-track { flex: 1; display: flex; align-items: center; }
.sl-fill  { display: none; }

.sl-track input[type=range] {
  -webkit-appearance: none;
  appearance: none;
  flex: 1;
  height: 4px;
  border-radius: 2px;
  outline: none;
  cursor: pointer;
  border: none;
  background: var(--border);
}
.sl-track input[type=range]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 14px; height: 14px;
  border-radius: 50%;
  background: var(--pink);
  box-shadow: 0 0 8px var(--pink-glow);
  cursor: pointer;
}
.sl-track input[type=range]::-moz-range-thumb {
  width: 14px; height: 14px;
  border-radius: 50%;
  background: var(--pink);
  box-shadow: 0 0 8px var(--pink-glow);
  cursor: pointer;
  border: none;
}
.sl-track input[type=range]::-moz-range-track {
  height: 4px; border-radius: 2px; background: var(--border);
}
.sl-track input[type=range]::-moz-range-progress {
  height: 4px; border-radius: 2px;
  background: linear-gradient(90deg, var(--pink), var(--purple));
}
.sl-val { font-size: 0.65rem; color: var(--text-dim); min-width: 32px; text-align: right; font-variant-numeric: tabular-nums; }

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border-hi); border-radius: 2px; }

/* ── Responsive ── */
@media (max-width: 680px) {
  #main-layout { flex-direction: column; }
  #player-panel { width: 100%; border-right: none; border-bottom: 1px solid var(--border); }
  #cassette-body { width: 290px; height: 180px; }
  .reel-window { width: 78px; height: 78px; }
  .reel { width: 66px; height: 66px; }
}