/* ----- Spotify-inspired dark theme ----- */
:root {
  --bg: #121212;
  --bg-elev: #181818;
  --bg-elev-2: #1f1f1f;
  --bg-card: #181818;
  --bg-card-hover: #282828;
  --sidebar: #000;
  --player: #181818;
  --text: #fff;
  --text-dim: #b3b3b3;
  --text-dim-2: #6a6a6a;
  --accent: #1db954;
  --accent-hover: #1ed760;
  --divider: #282828;
  --shadow: 0 10px 30px rgba(0,0,0,0.5);
  --radius: 8px;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; height: 100%; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, system-ui, sans-serif;
  font-size: 14px;
  overflow: hidden;
  -webkit-font-smoothing: antialiased;
  user-select: none;
  -webkit-user-select: none;
  overscroll-behavior: none;
}
button { font-family: inherit; }
a { color: inherit; text-decoration: none; cursor: pointer; }
img { display: block; }

/* ----- Login ----- */
.login-page {
  display: grid;
  place-items: center;
  background: linear-gradient(160deg, #1f1f1f 0%, #121212 70%);
  height: 100%;
}
.login-card {
  background: var(--bg-elev);
  padding: 36px 32px;
  border-radius: 12px;
  width: min(360px, 92vw);
  box-shadow: var(--shadow);
}
.login-card h1 {
  margin: 0 0 6px;
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.5px;
}
.login-sub {
  margin: 0 0 24px;
  color: var(--text-dim);
}
#login-form { display: grid; gap: 12px; }
#login-form input {
  background: #2a2a2a;
  border: 1px solid #333;
  color: var(--text);
  padding: 12px 14px;
  border-radius: 6px;
  font-size: 15px;
  outline: none;
}
#login-form input:focus { border-color: var(--accent); }
#login-form button {
  background: var(--accent);
  color: #000;
  border: 0;
  border-radius: 24px;
  padding: 12px;
  font-weight: 700;
  font-size: 15px;
  margin-top: 8px;
  cursor: pointer;
}
#login-form button:hover { background: var(--accent-hover); }
.error { color: #ff5a5a; min-height: 18px; font-size: 13px; }

/* ----- App layout ----- */
#app {
  display: grid;
  grid-template-columns: 240px 1fr;
  grid-template-rows: 1fr auto;
  grid-template-areas: "sidebar main" "player player";
  height: 100%;
  width: 100%;
}
#sidebar {
  grid-area: sidebar;
  background: var(--sidebar);
  padding: 16px 8px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
#main {
  grid-area: main;
  background: linear-gradient(180deg, #2c2c2c 0%, var(--bg) 240px);
  overflow-y: auto;
  padding: 24px 28px 32px;
  position: relative;
}
#player {
  grid-area: player;
  background: var(--player);
  border-top: 1px solid var(--divider);
  padding: 10px 16px;
  display: grid;
  grid-template-columns: minmax(180px, 30%) 1fr minmax(180px, 30%);
  align-items: center;
  gap: 12px;
  z-index: 10;
}

.brand {
  font-size: 20px;
  font-weight: 800;
  padding: 6px 12px;
  letter-spacing: -0.5px;
}
nav {
  display: flex;
  flex-direction: column;
  gap: 2px;
  margin-top: 4px;
}
.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  border-radius: 6px;
  color: var(--text-dim);
  font-weight: 600;
  font-size: 14px;
}
.nav-item:hover { color: var(--text); }
.nav-item.active { color: var(--text); background: var(--bg-elev-2); }
.nav-item .ic { font-size: 18px; opacity: 0.8; width: 18px; text-align: center; }

.sidebar-section {
  margin-top: 4px;
  border-top: 1px solid var(--divider);
  padding-top: 12px;
  display: flex;
  flex-direction: column;
  flex: 1;
  min-height: 0;
}
.sidebar-section-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 12px 8px;
  color: var(--text-dim);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 1px;
  font-weight: 700;
}
.playlist-list {
  overflow-y: auto;
  flex: 1;
}
.playlist-item {
  padding: 8px 14px;
  border-radius: 4px;
  color: var(--text-dim);
  font-size: 14px;
  cursor: pointer;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.playlist-item:hover { color: var(--text); background: var(--bg-elev-2); }
.playlist-item.active { color: var(--accent); }

.sidebar-footer {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 8px 12px;
  border-top: 1px solid var(--divider);
}
.textbtn {
  background: transparent;
  border: 0;
  color: var(--text-dim);
  text-align: left;
  padding: 6px 4px;
  font-size: 13px;
  cursor: pointer;
}
.textbtn:hover { color: var(--text); }

.iconbtn {
  background: transparent;
  border: 0;
  color: var(--text-dim);
  cursor: pointer;
  padding: 6px 8px;
  border-radius: 4px;
  line-height: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.iconbtn svg { width: 18px; height: 18px; display: block; }
.iconbtn:hover { color: var(--text); }
.iconbtn.playbtn {
  background: var(--text);
  color: #000;
  border-radius: 50%;
  width: 36px;
  height: 36px;
  padding: 0;
}
.iconbtn.playbtn svg { width: 16px; height: 16px; }
.iconbtn.playbtn:hover { transform: scale(1.06); }
.iconbtn.active { color: var(--accent); }

.nav-item .ic { display: inline-flex; align-items: center; justify-content: center; width: 20px; height: 20px; opacity: 0.85; }
.nav-item .ic svg { width: 20px; height: 20px; }
.icon-pill { display: inline-flex; align-items: center; gap: 6px; }
.icon-pill .ipi { display: inline-flex; }
.icon-pill .ipi svg { width: 14px; height: 14px; }

/* ----- Main views ----- */
h1.page-title { font-size: 28px; font-weight: 800; margin: 8px 0 16px; letter-spacing: -0.5px; }
h2.section-title { font-size: 20px; font-weight: 800; margin: 24px 0 12px; }

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(170px, 1fr));
  gap: 18px;
}
.card {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 14px;
  cursor: pointer;
  transition: background 0.18s ease;
  display: flex;
  flex-direction: column;
  gap: 10px;
  position: relative;
}
.card:hover { background: var(--bg-card-hover); }
.card .art {
  width: 100%;
  aspect-ratio: 1;
  background: #2a2a2a;
  border-radius: 6px;
  object-fit: cover;
  box-shadow: 0 6px 14px rgba(0,0,0,0.5);
}
.card .label {
  font-weight: 700;
  font-size: 14px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.card .sub {
  font-size: 12px;
  color: var(--text-dim);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.card .play-overlay {
  position: absolute;
  right: 22px;
  bottom: 64px;
  width: 44px;
  height: 44px;
  background: var(--accent);
  color: #000;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.18s ease, transform 0.18s ease, background 0.18s;
  box-shadow: 0 8px 14px rgba(0,0,0,0.5);
}
.card .play-overlay svg { width: 16px; height: 16px; }
.btn-pill[disabled] { opacity: 0.5; cursor: not-allowed; }
.card:hover .play-overlay { opacity: 1; transform: translateY(0); }

/* Album header */
.album-header {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 24px;
  align-items: end;
  margin-bottom: 24px;
}
.album-header .art-large {
  width: 220px;
  height: 220px;
  border-radius: 8px;
  object-fit: cover;
  box-shadow: 0 16px 32px rgba(0,0,0,0.6);
}
.album-header .meta { display: flex; flex-direction: column; gap: 8px; }
.album-header .kind { font-size: 12px; text-transform: uppercase; letter-spacing: 1.5px; color: var(--text-dim); font-weight: 700; }
.album-header h1 { font-size: 48px; line-height: 1.05; margin: 4px 0 8px; letter-spacing: -1.5px; }
.album-header .sub { color: var(--text-dim); font-size: 14px; }
.album-actions { display: flex; gap: 10px; align-items: center; margin: 16px 0; }
.btn-pill {
  background: var(--accent);
  color: #000;
  border: 0;
  border-radius: 24px;
  padding: 10px 22px;
  font-weight: 700;
  cursor: pointer;
}
.btn-pill:hover { background: var(--accent-hover); }
.btn-pill.ghost { background: transparent; color: var(--text-dim); border: 1px solid var(--text-dim-2); }
.btn-pill.ghost:hover { color: var(--text); border-color: var(--text); }

/* Track list */
.tracklist { display: grid; gap: 2px; margin-top: 8px; }
.track-row {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr) minmax(0, 1fr) 64px 40px;
  align-items: center;
  gap: 12px;
  padding: 8px 12px;
  border-radius: 4px;
  font-size: 14px;
  cursor: pointer;
}
.track-row > * { min-width: 0; }
.track-row:hover { background: rgba(255,255,255,0.07); }
.track-row.playing { color: var(--accent); }
.track-row .idx { color: var(--text-dim); text-align: right; font-variant-numeric: tabular-nums; }
.track-row:hover .idx { color: var(--text); }
.track-row .tr-title { font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.track-row .tr-sub { color: var(--text-dim); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.track-row .tr-dur { color: var(--text-dim); font-variant-numeric: tabular-nums; text-align: right; }
.track-row .tr-actions { text-align: right; opacity: 0; }
.track-row:hover .tr-actions { opacity: 1; }

/* Search */
.search-input {
  background: #2a2a2a;
  border: 0;
  color: var(--text);
  padding: 12px 16px;
  border-radius: 24px;
  width: min(360px, 100%);
  font-size: 14px;
  outline: none;
}
.search-input:focus { box-shadow: 0 0 0 2px var(--accent); }

/* Now playing player */
.np-info { display: flex; align-items: center; gap: 12px; min-width: 0; }
#np-art { width: 56px; height: 56px; border-radius: 4px; object-fit: cover; background: #2a2a2a; }
.np-text { min-width: 0; }
.np-title { font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.np-artist { color: var(--text-dim); font-size: 12px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.np-controls { display: flex; flex-direction: column; align-items: center; gap: 6px; }
.ctrl-row { display: flex; align-items: center; gap: 8px; }
.progress-row { display: flex; align-items: center; gap: 10px; width: min(540px, 100%); }
.time { font-size: 11px; color: var(--text-dim); min-width: 36px; text-align: center; font-variant-numeric: tabular-nums; }
input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  background: transparent;
  height: 4px;
  width: 100%;
  cursor: pointer;
}
input[type="range"]::-webkit-slider-runnable-track {
  height: 4px;
  background: #4d4d4d;
  border-radius: 2px;
}
input[type="range"]::-moz-range-track {
  height: 4px;
  background: #4d4d4d;
  border-radius: 2px;
}
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 12px;
  height: 12px;
  margin-top: -4px;
  border-radius: 50%;
  background: var(--text);
  opacity: 0;
  transition: opacity 0.15s;
}
input[type="range"]:hover::-webkit-slider-thumb { opacity: 1; }
input[type="range"]::-moz-range-thumb { width: 12px; height: 12px; border-radius: 50%; background: var(--text); border: 0; }

.np-right {
  display: flex;
  align-items: center;
  gap: 10px;
  justify-content: flex-end;
}
.np-right input[type="range"] { width: 100px; }

/* Queue panel */
#queue-panel {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 96px;
  width: min(360px, 100%);
  background: var(--bg-elev);
  border-left: 1px solid var(--divider);
  padding: 16px;
  overflow-y: auto;
  z-index: 20;
  box-shadow: -10px 0 30px rgba(0,0,0,0.5);
}
#queue-panel.hidden { display: none; }
.queue-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 12px; }
.queue-head h3 { margin: 0; font-size: 18px; }
.queue-item {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  padding: 8px;
  border-radius: 4px;
  cursor: pointer;
  gap: 8px;
}
.queue-item:hover { background: rgba(255,255,255,0.06); }
.queue-item.current { color: var(--accent); }
.queue-item .qtitle { font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: 13px; }
.queue-item .qsub { color: var(--text-dim); font-size: 12px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* Modal */
.modal {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.7);
  display: grid;
  place-items: center;
  z-index: 100;
}
.modal.hidden { display: none; }
.modal-card {
  background: var(--bg-elev);
  border-radius: 8px;
  padding: 22px;
  width: min(420px, 90vw);
  box-shadow: var(--shadow);
}
.modal h3 { margin: 0 0 14px; font-size: 18px; }
.modal input[type="text"] {
  width: 100%;
  background: #2a2a2a;
  border: 1px solid #333;
  color: var(--text);
  padding: 10px 12px;
  border-radius: 6px;
  outline: none;
  font-size: 14px;
}
.modal-actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 14px; }

.hidden { display: none !important; }

/* Context menu */
.menu {
  position: fixed;
  background: #282828;
  border-radius: 4px;
  padding: 6px;
  min-width: 180px;
  box-shadow: var(--shadow);
  z-index: 200;
}
.menu-item {
  padding: 8px 12px;
  border-radius: 2px;
  cursor: pointer;
  font-size: 13px;
  color: var(--text);
}
.menu-item:hover { background: rgba(255,255,255,0.1); }
.menu-sep { height: 1px; background: var(--divider); margin: 4px 0; }
.menu-sub { color: var(--text-dim); font-size: 11px; padding: 4px 12px; text-transform: uppercase; letter-spacing: 1px; }

.empty {
  text-align: center;
  padding: 64px 16px;
  color: var(--text-dim);
}
.empty h3 { color: var(--text); margin: 0 0 8px; }

.spinner {
  border: 3px solid #333;
  border-top-color: var(--accent);
  border-radius: 50%;
  width: 28px;
  height: 28px;
  animation: spin 0.8s linear infinite;
  margin: 32px auto;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ----- Mobile ----- */
@media (max-width: 800px) {
  #app {
    grid-template-columns: 1fr;
    grid-template-rows: 1fr auto auto;
    grid-template-areas: "main" "player" "sidebar";
  }
  #sidebar {
    grid-area: sidebar;
    flex-direction: row;
    align-items: center;
    gap: 0;
    padding: 4px 4px env(safe-area-inset-bottom);
    overflow-x: auto;
    overflow-y: hidden;
    border-top: 1px solid var(--divider);
  }
  #sidebar .brand,
  #sidebar .sidebar-section-head span,
  #sidebar .sidebar-footer { display: none; }
  #sidebar nav {
    flex-direction: row;
    flex-shrink: 0;
    margin: 0;
  }
  .nav-item {
    flex-direction: column;
    gap: 2px;
    padding: 8px 12px;
    font-size: 10px;
    text-transform: uppercase;
  }
  .nav-item .ic { font-size: 22px; }
  .sidebar-section {
    border-top: 0;
    padding-top: 0;
    flex-direction: row;
    flex-shrink: 1;
    margin: 0;
  }
  .sidebar-section-head {
    padding: 0 12px;
    align-items: center;
  }
  .playlist-list {
    display: flex;
    flex-direction: row;
    gap: 6px;
    flex: 1;
    overflow-x: auto;
  }
  .playlist-item {
    padding: 8px 10px;
    border-radius: 16px;
    background: var(--bg-elev-2);
    flex-shrink: 0;
    font-size: 12px;
  }
  #main {
    padding: 16px 14px 16px;
  }
  h1.page-title { font-size: 22px; }
  .grid {
    grid-template-columns: repeat(auto-fill, minmax(110px, 1fr));
    gap: 10px;
  }
  .card { padding: 8px; gap: 6px; }
  .card .label { font-size: 12px; }
  .card .sub { font-size: 11px; }
  .card .play-overlay { display: none; }
  .album-header {
    grid-template-columns: 1fr;
    text-align: center;
    align-items: center;
    gap: 14px;
  }
  .album-header .meta { align-items: center; }
  .album-header .art-large {
    width: min(60vw, 240px);
    height: min(60vw, 240px);
    margin: 0 auto;
  }
  .album-header h1 { font-size: 26px; line-height: 1.15; }
  .album-actions {
    justify-content: center;
    flex-wrap: wrap;
    gap: 8px;
  }
  .btn-pill { padding: 9px 18px; font-size: 13px; }
  .track-row {
    grid-template-columns: 24px minmax(0, 1fr) auto 28px;
    padding: 10px 4px;
    gap: 8px;
    align-items: center;
  }
  .track-row > .tr-sub { display: none; }  /* hide album-column only, keep artist sub under title */
  .track-row .tr-title { font-size: 14px; }
  .track-row .tr-title + .tr-sub { font-size: 12px; display: block; max-width: 100%; }
  .track-row .tr-dur { font-size: 12px; min-width: 36px; text-align: right; }
  .track-row .tr-actions { opacity: 1; text-align: right; }
  .track-row .tr-actions .iconbtn { padding: 4px; }
  .tracklist { overflow: hidden; }
  #player {
    grid-template-columns: 1fr auto;
    padding: 8px 12px env(safe-area-inset-bottom);
    gap: 8px;
  }
  .np-info { gap: 10px; }
  #np-art { width: 44px; height: 44px; }
  .np-controls { display: none; }
  .np-right input[type="range"] { display: none; }
  .np-right { gap: 4px; }
  #player.expanded {
    position: fixed;
    inset: 0;
    z-index: 50;
    grid-template-columns: 1fr;
    grid-template-rows: auto 1fr auto;
    background: linear-gradient(180deg, #2c2c2c 0%, var(--bg) 100%);
    padding: 16px 16px env(safe-area-inset-bottom);
  }
  #player.expanded .np-info {
    flex-direction: column;
    gap: 16px;
    text-align: center;
  }
  #player.expanded #np-art {
    width: min(70vw, 320px);
    height: min(70vw, 320px);
    border-radius: 8px;
    margin-top: 8vh;
  }
  #player.expanded .np-title { font-size: 22px; }
  #player.expanded .np-artist { font-size: 15px; }
  #player.expanded .np-controls { display: flex; gap: 12px; }
  #player.expanded .progress-row { width: 100%; }
  #player.expanded .np-right { justify-content: center; gap: 16px; }
  #player.expanded .np-right input[type="range"] { display: block; width: 50%; }
  #queue-panel { bottom: 0; width: 100%; }
}