:root {
  --bg: #101114;
  --panel: #181a20;
  --panel-2: #21242c;
  --border: #2d313b;
  --text: #f4f5f7;
  --muted: #9aa1ad;
  --accent: #8b7cff;
  --accent-2: #6657df;
  --danger: #ee6b75;
  --shadow: 0 18px 50px rgba(0, 0, 0, 0.28);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  background: radial-gradient(circle at top, #1b1d27 0, var(--bg) 42%);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

button, input { font: inherit; }
button { cursor: pointer; }

.app-shell {
  min-height: 100vh;
  display: grid;
  grid-template-rows: auto 1fr auto;
  gap: 14px;
  padding: 14px;
}

.panel {
  background: rgba(24, 26, 32, 0.94);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  border-radius: 18px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 8px 6px;
}

h1, h2, p { margin: 0; }
h1 { font-size: clamp(1.35rem, 2vw, 1.8rem); }
h2 { font-size: 1rem; }
.topbar p, .content-toolbar p { color: var(--muted); margin-top: 4px; font-size: 0.9rem; }

.topbar-actions { display: flex; gap: 10px; flex-wrap: wrap; justify-content: flex-end; }
button {
  border: 0;
  border-radius: 10px;
  background: var(--accent);
  color: white;
  padding: 10px 14px;
  font-weight: 700;
}
button:hover { filter: brightness(1.08); }
button.secondary { background: var(--panel-2); border: 1px solid var(--border); }

.layout {
  min-height: 0;
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr) 280px;
  gap: 14px;
}

.sidebar, .queue, .content { min-height: 0; overflow: hidden; }
.sidebar, .queue { padding: 14px; }
.content { display: grid; grid-template-rows: auto minmax(0, 1fr); }

.section-heading {
  min-height: 38px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}
.playlists-heading { margin-top: 18px; }

.nav-item {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: transparent;
  color: var(--text);
  padding: 10px 12px;
  margin-bottom: 4px;
  text-align: left;
  font-weight: 600;
}
.nav-item:hover, .nav-item.active { background: var(--panel-2); }
.nav-item.active { outline: 1px solid rgba(139,124,255,.35); }
.count { color: var(--muted); font-size: .8rem; }

.playlist-list { display: grid; gap: 4px; }
.playlist-row { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 4px; }
.playlist-row .nav-item { margin: 0; overflow: hidden; }
.playlist-row .nav-item span:first-child { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.icon-button, .text-button {
  background: transparent;
  color: var(--muted);
  padding: 7px 9px;
  border-radius: 9px;
  font-weight: 800;
}
.icon-button:hover, .text-button:hover { background: var(--panel-2); color: var(--text); }
.icon-button.active, .favorite-button.active { color: var(--accent); background: rgba(139,124,255,.12); }
.icon-button.large { font-size: 1.15rem; }
.text-button { font-size: .82rem; }

.content-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 18px;
  padding: 16px;
  border-bottom: 1px solid var(--border);
}
.search {
  width: min(300px, 45%);
  background: var(--panel-2);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 12px;
  padding: 10px 12px;
  outline: none;
}
.search:focus { border-color: var(--accent); }

.track-list, .queue-list {
  overflow-y: auto;
  min-height: 0;
}
.track-row {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr) auto auto;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border-bottom: 1px solid rgba(45,49,59,.55);
}
.track-row:hover { background: rgba(255,255,255,.03); }
.track-row.playing { background: rgba(139,124,255,.09); }
.track-index { color: var(--muted); text-align: center; font-variant-numeric: tabular-nums; }
.track-info { min-width: 0; }
.track-title { display: block; font-weight: 700; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.track-path { display: block; margin-top: 2px; color: var(--muted); font-size: .78rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.track-actions { display: flex; gap: 3px; }
.track-kind { color: var(--muted); font-size: .72rem; text-transform: uppercase; letter-spacing: .06em; }

.queue-list { display: grid; align-content: start; gap: 4px; }
.queue-item {
  background: transparent;
  border-radius: 10px;
  padding: 9px 10px;
  color: var(--text);
  cursor: pointer;
}
.queue-item:hover { background: var(--panel-2); }
.queue-item strong, .queue-item span { display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.queue-item strong { font-size: .88rem; }
.queue-item span { color: var(--muted); font-size: .75rem; margin-top: 2px; }

.empty-state { display: grid; place-items: center; }
.empty-copy { text-align: center; color: var(--muted); display: grid; gap: 7px; padding: 32px; }
.empty-copy strong { color: var(--text); font-size: 1.05rem; }

.player-bar {
  display: grid;
  grid-template-columns: minmax(260px, 1fr) minmax(360px, 1.4fr) minmax(170px, .6fr);
  gap: 18px;
  align-items: center;
  padding: 12px 16px;
}
.now-playing { display: grid; grid-template-columns: 54px minmax(0,1fr) auto; align-items: center; gap: 10px; }
.media-preview {
  width: 54px;
  height: 54px;
  border-radius: 12px;
  overflow: hidden;
  background: linear-gradient(145deg, #302b5b, #171822);
  display: grid;
  place-items: center;
}
.media-preview .disc { font-size: 1.45rem; color: #d7d2ff; }
.media-preview video { width: 100%; height: 100%; object-fit: cover; }
.track-meta { min-width: 0; }
.track-meta strong, .track-meta span { display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.track-meta span { color: var(--muted); font-size: .78rem; margin-top: 3px; }
.player-center { display: grid; gap: 6px; }
.transport { display: flex; justify-content: center; align-items: center; gap: 8px; }
.play-button { width: 42px; height: 42px; border-radius: 50%; padding: 0; font-size: 1rem; }
.progress-row { display: grid; grid-template-columns: 45px 1fr 45px; align-items: center; gap: 8px; color: var(--muted); font-size: .75rem; font-variant-numeric: tabular-nums; }
.progress-row span:last-child { text-align: right; }
.volume-group { display: grid; grid-template-columns: auto 1fr; gap: 8px; align-items: center; justify-self: end; width: min(220px, 100%); }
input[type="range"] { width: 100%; accent-color: var(--accent); }
.hidden { display: none !important; }

.dialog-actions { display: flex; justify-content: flex-end; gap: 10px; margin-top: 18px; }
dialog {
  width: min(420px, calc(100vw - 30px));
  color: var(--text);
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 20px;
}
dialog::backdrop { background: rgba(0,0,0,.65); }
dialog form { display: grid; gap: 14px; }
dialog label { display: grid; gap: 7px; color: var(--muted); font-size: .88rem; }
dialog input { background: var(--panel-2); color: var(--text); border: 1px solid var(--border); border-radius: 10px; padding: 10px; }

@media (max-width: 980px) {
  .layout { grid-template-columns: 190px minmax(0, 1fr); }
  .queue { display: none; }
  .player-bar { grid-template-columns: 1fr 1.5fr; }
  .volume-group { display: none; }
}

@media (max-width: 700px) {
  .app-shell { padding: 8px; }
  .topbar { align-items: flex-start; flex-direction: column; }
  .layout { grid-template-columns: 1fr; grid-template-rows: auto minmax(440px, 1fr); }
  .sidebar { display: grid; grid-template-columns: 1fr 1fr; gap: 4px 8px; }
  .section-heading, .playlists-heading, .playlist-list { grid-column: 1 / -1; }
  .playlist-list { grid-template-columns: 1fr 1fr; }
  .player-bar { grid-template-columns: 1fr; }
  .now-playing { order: 1; }
  .player-center { order: 2; }
  .search { width: 50%; }
}