:root {
  --bg: #14161c;
  --bg-elev: #1b1e26;
  --bg-elev-2: #23262f;
  --border: #2c303c;
  --text: #e6e7eb;
  --text-muted: #8b8fa3;
  --accent: #6c8cff;
  --accent-hover: #8aa3ff;
  --danger: #e5637a;
  --radius: 10px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

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

/* --- topbar --- */
.topbar {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 12px 20px;
  background: var(--bg-elev);
  border-bottom: 1px solid var(--border);
}
.brand { font-weight: 600; font-size: 1.1rem; }
.tabs { display: flex; gap: 4px; flex: 1; }
.tab-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  padding: 8px 14px;
  border-radius: var(--radius);
  cursor: pointer;
  font-size: 0.92rem;
}
.tab-btn:hover { color: var(--text); background: var(--bg-elev-2); }
.tab-btn.active { color: var(--text); background: var(--bg-elev-2); }
.userbox { display: flex; align-items: center; gap: 10px; color: var(--text-muted); font-size: 0.9rem; }

/* --- content --- */
.content { flex: 1; overflow-y: auto; padding: 20px; }
.tab-pane { display: none; }
.tab-pane.active { display: block; }

.panel-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 10px; gap: 12px; }
.panel-header-actions { display: flex; gap: 8px; flex-shrink: 0; }
.breadcrumb { color: var(--text-muted); font-size: 0.85rem; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.breadcrumb .crumb { cursor: pointer; }
.breadcrumb .crumb:hover { color: var(--accent); text-decoration: underline; }
.breadcrumb .sep { margin: 0 4px; opacity: 0.5; }
.file-list-empty { color: var(--text-muted); font-size: 0.85rem; padding: 14px 12px; }
.file-row.playing { background: rgba(108,140,255,0.16); border-left: 3px solid var(--accent); padding-left: 9px; }
.file-row.playing .name { color: var(--accent-hover); font-weight: 600; }

/* --- library + playlist panel (60/40, top/bottom split) --- */
.library-layout { display: flex; gap: 16px; align-items: stretch; }
.library-main { flex: 3 1 0; min-width: 0; }
.playlist-panel {
  flex: 2 1 0;
  min-width: 260px;
  display: flex;
  flex-direction: column;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  height: calc(100vh - 180px);
  position: sticky;
  top: 0;
}
.playlist-panel-top {
  flex: 1 1 33%;
  overflow-y: auto;
  padding: 14px;
  border-bottom: 1px solid var(--border);
}
.playlist-panel-bottom {
  flex: 2 1 67%;
  overflow-y: auto;
  padding: 14px;
  display: flex;
  flex-direction: column;
  min-height: 0;
}
.playlist-panel-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 8px; }
.playlist-panel-header h4 { margin: 0; font-size: 0.9rem; }
.playlist-panel-header-actions { display: flex; align-items: center; gap: 4px; }
.plus-btn { font-size: 1rem; }
.playlist-list { display: flex; flex-direction: column; gap: 4px; }
.playlist-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  padding: 9px 12px;
  border-radius: 8px;
  background: var(--bg-elev-2);
  font-size: 0.85rem;
  cursor: pointer;
  border: 1px dashed transparent;
  transition: background .12s, border-color .12s;
}
.playlist-row:hover { background: var(--bg-elev-2); filter: brightness(1.15); }
.playlist-row.active { background: var(--accent); color: #10121a; }
.playlist-row.active .pl-count { color: #10121a; opacity: 0.7; }
.playlist-row.drag-over { border-color: var(--accent); background: rgba(108,140,255,0.18); }
.playlist-row.flash { background: #2c4a38; border-color: #4fd18b; }
.pl-name { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.pl-count { color: var(--text-muted); font-size: 0.78rem; flex-shrink: 0; }
.playlist-list-empty { font-size: 0.82rem; color: var(--text-muted); }
.playlist-detail-header {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 8px; font-size: 0.88rem; font-weight: 600;
}
.playlist-detail-header span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.playlist-detail-actions { display: flex; align-items: center; gap: 2px; flex-shrink: 0; }
.playlist-detail-empty { color: var(--text-muted); font-size: 0.85rem; }

/* --- quick-add popover (fallback for touch / no drag support) --- */
.quick-add-menu {
  background: var(--bg-elev-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 4px;
  min-width: 170px;
  box-shadow: 0 12px 28px rgba(0,0,0,0.45);
  z-index: 100;
}
.quick-add-option { padding: 8px 10px; border-radius: 6px; font-size: 0.85rem; cursor: pointer; }
.quick-add-option:hover { background: var(--bg-elev); }

.file-list { display: flex; flex-direction: column; gap: 2px; }
.file-list.small { max-height: 260px; overflow-y: auto; }
.file-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  border-radius: var(--radius);
  background: var(--bg-elev);
  cursor: pointer;
}
.file-row:hover { background: var(--bg-elev-2); }
.file-row .name { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.file-row .actions { display: flex; gap: 6px; opacity: 0; transition: opacity .1s; flex-shrink: 0; }
.file-row:hover .actions { opacity: 1; }
.file-row .icon { width: 18px; text-align: center; color: var(--text-muted); }
.track-num { color: var(--text-muted); font-variant-numeric: tabular-nums; min-width: 1.6em; text-align: right; flex-shrink: 0; font-size: 0.82rem; }

/* --- buttons / inputs --- */
button { font-family: inherit; }
.primary-btn {
  background: var(--accent);
  color: #10121a;
  border: none;
  padding: 10px 16px;
  border-radius: var(--radius);
  cursor: pointer;
  font-weight: 600;
}
.primary-btn:hover { background: var(--accent-hover); }
.primary-btn.small { padding: 7px 12px; font-size: 0.85rem; }
.ghost-btn {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
  padding: 8px 14px;
  border-radius: var(--radius);
  cursor: pointer;
}
.ghost-btn.small { padding: 6px 10px; font-size: 0.8rem; }
.ghost-btn:hover { border-color: var(--accent); }
.icon-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 0.95rem;
}
.icon-btn:hover { color: var(--danger); }

input[type=text], input[type=password], select {
  background: var(--bg-elev-2);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 9px 12px;
  border-radius: var(--radius);
  font-size: 0.9rem;
  width: 100%;
  margin-bottom: 8px;
}
input[type=file] { color: var(--text-muted); margin-bottom: 8px; }

.muted { color: var(--text-muted); font-size: 0.82rem; }

/* --- upload --- */
.upload-buttons { display: flex; gap: 8px; margin-bottom: 12px; }
.file-btn { display: inline-flex; align-items: center; justify-content: center; cursor: pointer; flex: 1; }
.conflict-choice { display: flex; align-items: center; gap: 14px; margin-bottom: 12px; flex-wrap: wrap; }
.radio { display: flex; align-items: center; gap: 5px; font-size: 0.82rem; color: var(--text-muted); cursor: pointer; }
.radio input { accent-color: var(--accent); }

.upload-progress-wrap { margin-bottom: 12px; }
.upload-progress-label { font-size: 0.8rem; color: var(--text-muted); margin-bottom: 6px; }
.progress-track { background: var(--bg-elev-2); border-radius: 6px; height: 8px; overflow: hidden; }
.progress-fill { background: var(--accent); height: 100%; width: 0%; transition: width .15s ease; }

.upload-results { display: flex; flex-direction: column; gap: 3px; max-height: 220px; overflow-y: auto; }
.upload-result-row {
  display: flex; align-items: center; gap: 8px;
  padding: 5px 8px; border-radius: 6px; font-size: 0.82rem;
  background: var(--bg-elev-2);
}
.upload-result-row .r-icon { width: 16px; text-align: center; flex-shrink: 0; }
.upload-result-row .r-name { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.upload-result-row.ok .r-icon { color: #4fd18b; }
.upload-result-row.skip .r-icon { color: #e0b23f; }
.upload-result-row.overwrite .r-icon { color: var(--accent); }
.upload-result-row.err .r-icon { color: var(--danger); }
.upload-summary { font-size: 0.82rem; color: var(--text-muted); margin-bottom: 6px; }

/* --- cards / grids --- */
.card {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
}
.card h3 { margin-top: 0; }
.add-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 16px; }
.danger-card { border-color: rgba(229,99,122,0.5); }
.danger-btn {
  background: var(--danger);
  color: #fff;
  border: none;
  padding: 9px 14px;
  border-radius: var(--radius);
  cursor: pointer;
  font-weight: 600;
}
.danger-btn.small { padding: 7px 12px; font-size: 0.85rem; }
.danger-btn:hover { filter: brightness(1.1); }

/* --- equalizer --- */
.eq-panel { display: flex; flex-direction: column; gap: 20px; }
.eq-bands { display: flex; justify-content: space-between; gap: 6px; background: var(--bg-elev-2); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px 10px; }
.eq-band { display: flex; flex-direction: column; align-items: center; gap: 8px; }
.eq-band input[type=range] {
  writing-mode: vertical-lr;
  direction: rtl;
  width: 24px;
  height: 130px;
  accent-color: var(--accent);
}
.eq-band .freq-label { font-size: 0.72rem; color: var(--text-muted); }
.eq-controls { display: flex; gap: 8px; align-items: center; }
.eq-controls select, .eq-controls input { width: auto; margin-bottom: 0; flex: 1; }

/* --- admin --- */
.admin-new { display: flex; gap: 8px; align-items: center; margin-bottom: 10px; flex-wrap: wrap; }
.admin-new input { width: auto; flex: 1; min-width: 140px; margin-bottom: 0; }
.checkbox { display: flex; align-items: center; gap: 6px; color: var(--text-muted); font-size: 0.85rem; white-space: nowrap; }

/* --- player bar --- */
.player-bar {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 10px 20px 14px;
  background: var(--bg-elev);
  border-top: 1px solid var(--border);
}
.player-seek-row { display: flex; align-items: center; gap: 10px; }
.player-seek-row span { font-size: 0.75rem; color: var(--text-muted); width: 38px; flex-shrink: 0; }
.player-seek-row input[type=range] { flex: 1; accent-color: var(--accent); }

.player-controls-row { display: flex; align-items: center; gap: 16px; }
.pcr-left { flex: 3 1 0; min-width: 0; display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.now-playing { flex: 1; min-width: 120px; }
.track-title { font-size: 0.9rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.transport { display: flex; align-items: center; gap: 14px; flex-shrink: 0; }
.transport button {
  background: transparent;
  border: none;
  color: var(--text);
  font-size: 1.2rem;
  cursor: pointer;
  padding: 4px;
}
.transport button:hover { color: var(--accent); }
#playPauseBtn { font-size: 1.6rem; }
.player-right-controls { flex: 2 1 0; min-width: 0; display: flex; align-items: center; justify-content: flex-end; gap: 14px; }
.volume-row { display: flex; align-items: center; gap: 8px; width: 130px; }
.volume-row input { flex: 1; accent-color: var(--accent); }
.mini-toggle, #eqOpenBtn { font-size: 1.15rem; }

/* --- modal (Equalizer) --- */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.55);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
}
.modal-box {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  width: 500px;
  max-width: 92vw;
  box-shadow: 0 20px 50px rgba(0,0,0,0.5);
}
.modal-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 14px; }
.modal-header h3 { margin: 0; font-size: 1rem; }

/* --- mini player (Document Picture-in-Picture window) --- */
.mini-player-body { background: var(--bg); margin: 0; }
.mini-player { display: flex; flex-direction: column; gap: 12px; padding: 16px; color: var(--text); height: 100%; box-sizing: border-box; justify-content: center; }
.mini-title { font-size: 0.88rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; text-align: center; }
.mini-seek { width: 100%; accent-color: var(--accent); }
.mini-transport { display: flex; justify-content: center; align-items: center; gap: 26px; }
.mini-transport button { background: transparent; border: none; color: var(--text); font-size: 1.5rem; cursor: pointer; padding: 2px; }
.mini-transport button:hover { color: var(--accent); }
.mini-transport #miniPlayPause { font-size: 2rem; }

/* --- login --- */
.login-body { display: flex; align-items: center; justify-content: center; height: 100vh; }
.login-card {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  width: 320px;
}
.login-card h1 { text-align: center; font-size: 1.3rem; margin-bottom: 20px; }
.login-card label { font-size: 0.8rem; color: var(--text-muted); }
.error { color: var(--danger); font-size: 0.85rem; min-height: 1em; }

::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-thumb { background: var(--bg-elev-2); border-radius: 6px; }

/* ================================================= responsive / mobile === */
@media (max-width: 860px) {
  .topbar { flex-wrap: wrap; gap: 8px; padding: 10px 14px; }
  .brand { font-size: 1rem; }
  .tabs {
    order: 3;
    width: 100%;
    flex: none;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    gap: 4px;
    padding-bottom: 2px;
  }
  .tabs::-webkit-scrollbar { height: 4px; }
  .tab-btn { white-space: nowrap; flex-shrink: 0; padding: 7px 10px; font-size: 0.82rem; }
  .userbox { gap: 6px; font-size: 0.8rem; margin-left: auto; }

  .content { padding: 12px; }

  .panel-header { flex-wrap: wrap; gap: 8px; }
  .panel-header-actions { width: 100%; justify-content: flex-end; }

  .library-layout { flex-direction: column; }
  .library-main { flex: none; width: 100%; }
  .playlist-panel {
    flex: none;
    width: 100%;
    height: 48vh;
    position: static;
  }

  /* Aktions-Icons brauchen auf Touch-Geräten keinen Hover, sonst unerreichbar */
  .file-row .actions { opacity: 1; }

  .playlists-layout { flex-direction: column; }

  .add-grid { grid-template-columns: 1fr; }
  .admin-new { flex-direction: column; align-items: stretch; }
  .admin-new input, .admin-new label, .admin-new button { width: 100%; }
  .conflict-choice { flex-direction: column; align-items: flex-start; gap: 6px; }
  .upload-buttons { flex-direction: column; }

  .modal-box { width: 94vw; padding: 14px; }
  .eq-bands { gap: 4px; padding: 16px 4px; }
  .eq-controls { flex-wrap: wrap; }
  .eq-controls select, .eq-controls input { min-width: 120px; }

  .player-bar { padding: 8px 12px 10px; gap: 6px; }
  .player-controls-row { flex-direction: column; align-items: stretch; gap: 10px; }
  .pcr-left { flex-direction: column; align-items: stretch; gap: 8px; }
  .now-playing { text-align: center; }
  .track-title { white-space: normal; }
  .transport { justify-content: center; gap: 18px; }
  .player-right-controls { flex: none; justify-content: center; }
  .volume-row { width: 120px; }
}

@media (max-width: 480px) {
  .track-num { min-width: 1.3em; font-size: 0.75rem; }
  .file-row .name { font-size: 0.85rem; }
  .transport button { font-size: 1.3rem; padding: 6px; }
  #playPauseBtn { font-size: 1.7rem; }
  .volume-row span { display: none; }
  .volume-row { width: 90px; }
  .playlist-panel { height: 52vh; }
  .login-card { width: 90vw; padding: 24px; }
}