:root {
  --primary: #1DB954;
  --primary-hover: #1ED760;
  --primary-pressed: #179F47;
  --bg: #121212;
  --surface: #1E1E1E;
  --surface-light: #2A2A2A;
  --surface-hover: #2E2E2E;
  --text-primary: #FFFFFF;
  --text-secondary: #B3B3B3;
  --border: #404040;
  --cover-bg: #282828;
}

:root[data-theme="light"] {
  --bg: #F5F5F5;
  --surface: #FFFFFF;
  --surface-light: #EDEDED;
  --surface-hover: #E4E4E4;
  --text-primary: #1A1A1A;
  --text-secondary: #6B6B6B;
  --border: #D9D9D9;
  --cover-bg: #E4E4E4;
}

* { box-sizing: border-box; }

html, body {
  height: 100%;
  margin: 0;
  background: var(--bg);
  color: var(--text-primary);
  font-family: "Segoe UI", -apple-system, "Helvetica Neue", Arial, sans-serif;
  font-size: 14px;
  overflow: hidden;
}

.hidden { display: none !important; }

button {
  font-family: inherit;
  cursor: pointer;
  outline: none;
}
button::-moz-focus-inner { border: 0; }

a { color: inherit; text-decoration: none; }

::selection { background: var(--primary); color: #000; }

/* Scrollbars */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--surface-light); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--border); }

/* ── Auth screen ─────────────────────────────────────────────────────── */
.auth-screen {
  height: 100vh;
  height: 100dvh; /* mobile browsers: 100vh ignores the address bar, pushing content below the fold */
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #0f1116, #161b22);
  color: #e9edf2;
}

.auth-card {
  width: 360px;
  max-width: 90vw;
  background: rgba(19, 23, 31, 0.9);
  border: 1px solid #1f2937;
  border-radius: 16px;
  padding: 32px 28px;
}

.auth-logo {
  color: var(--primary);
  font-weight: 700;
  font-size: 15px;
  margin-bottom: 20px;
}

.auth-card h1 {
  font-size: 22px;
  margin: 0 0 6px;
}

.auth-hint {
  color: #9ea4aa;
  font-size: 13px;
  margin: 0 0 20px;
}

#auth-form { display: flex; flex-direction: column; gap: 12px; }

.auth-card input {
  padding: 12px;
  border: 1px solid #2c3747;
  border-radius: 12px;
  background: #0f141d;
  color: #ffffff;
  font-size: 14px;
  outline: none;
}

.auth-card input:focus {
  border-color: #35d27c;
  box-shadow: 0 0 0 2px rgba(53,210,124,0.18);
}

.auth-error {
  color: #ff7a7a;
  font-size: 13px;
}

#auth-submit {
  padding: 12px;
  border: none;
  border-radius: 12px;
  background: linear-gradient(135deg, #35d27c, #2bb36c);
  color: #0b0f15;
  font-weight: 700;
  letter-spacing: 0.3px;
  font-size: 14px;
}

#auth-submit:disabled { opacity: 0.6; cursor: default; }

.link-button {
  background: transparent;
  border: none;
  color: #9ea4aa;
  padding: 8px 4px;
  text-decoration: underline;
  font-size: 13px;
  margin-top: 14px;
  width: 100%;
  text-align: center;
}
.link-button:hover { color: #cfd4dc; }

/* ── App shell ───────────────────────────────────────────────────────── */
.app-root {
  height: 100vh;
  height: 100dvh; /* mobile browsers: 100vh ignores the address bar, pushing the player bar below the fold */
  display: flex;
  flex-direction: column;
}

.topbar {
  height: 58px;
  min-height: 58px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  padding: 0 20px;
  gap: 20px;
}

.icon-btn.sidebar-toggle-btn {
  display: none;
  flex-shrink: 0;
}

.sidebar-backdrop {
  display: none;
}

.topbar-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--primary);
  font-weight: 700;
  font-size: 15px;
  cursor: pointer;
  white-space: nowrap;
}
.logo-mark { width: 22px; height: 22px; border-radius: 5px; display: block; }

.topbar-search {
  flex: 1;
  max-width: 480px;
  margin: 0 auto;
  height: 38px;
  background: var(--surface-light);
  border: 1.5px solid var(--border);
  border-radius: 19px;
  display: flex;
  align-items: center;
  padding: 0 14px;
  gap: 8px;
}
.topbar-search input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  color: var(--text-primary);
  font-size: 13px;
}
.topbar-search input::placeholder { color: var(--text-secondary); }
.search-icon { opacity: 0.7; flex-shrink: 0; color: var(--text-secondary); }

.topbar-account {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text-secondary);
  font-size: 13px;
  white-space: nowrap;
}

.icon-btn.settings-btn {
  width: 36px;
  height: 36px;
  border-radius: 18px;
  font-size: 17px;
}
.icon-btn.settings-btn:hover { background: var(--surface-hover); }
.icon-btn.settings-btn.active { color: var(--primary); background: var(--surface-hover); }

/* ── Settings page ───────────────────────────────────────────────────── */
.settings-wrap {
  max-width: 640px;
}
.settings-header {
  font-size: 20px;
  font-weight: 700;
  margin: 0 0 20px;
}
.settings-card {
  background: var(--surface);
  border-radius: 12px;
  padding: 16px 18px;
  margin-bottom: 20px;
}
.settings-section-label {
  color: var(--text-secondary);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 12px;
}
.settings-section-label:not(:first-child) { margin-top: 16px; }

.accent-swatches {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.accent-swatch {
  width: 32px;
  height: 32px;
  border-radius: 16px;
  border: 2px solid transparent;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #000;
  font-weight: 700;
  font-size: 13px;
}
.accent-swatch:hover { border-color: var(--text-primary); }
.accent-swatch.selected { border-color: var(--text-primary); }

.choice-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.choice-btn {
  height: 32px;
  padding: 0 14px;
  border-radius: 16px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-secondary);
  font-size: 13px;
}
.choice-btn:hover { border-color: var(--text-primary); color: var(--text-primary); }
.choice-btn.selected {
  background: var(--primary);
  border-color: var(--primary);
  color: #000;
  font-weight: 600;
}

.settings-row {
  display: flex;
  align-items: center;
  gap: 10px;
}
.settings-row-label { color: var(--text-primary); font-size: 14px; }
.settings-row-sub { color: var(--text-secondary); font-size: 12px; margin-top: 8px; }

.settings-btn-outline {
  height: 30px;
  padding: 0 12px;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-secondary);
  font-size: 13px;
  margin-left: auto;
}
.settings-btn-outline:hover { border-color: var(--text-primary); color: var(--text-primary); }

.settings-logout-btn {
  width: 100%;
  height: 36px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-secondary);
  font-size: 14px;
}
.settings-logout-btn:hover { border-color: #ff7a7a; color: #ff7a7a; }

.body {
  flex: 1;
  display: flex;
  min-height: 0;
}

/* ── Sidebar ─────────────────────────────────────────────────────────── */
.sidebar {
  width: 260px;
  min-width: 260px;
  background: var(--surface);
  border-right: 1px solid var(--surface-light);
  overflow-y: auto;
  padding: 12px 0;
}

.sidebar-user {
  font-weight: 700;
  padding: 4px 16px 12px;
  font-size: 13px;
}

.sidebar-header {
  color: var(--text-secondary);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 8px 16px;
}

.sidebar-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 6px 16px;
  cursor: pointer;
  border-radius: 6px;
  margin: 0 6px;
}
.sidebar-item:hover { background: var(--surface-light); }
.sidebar-item.active { background: var(--surface-light); }

.sidebar-avatar {
  width: 40px;
  height: 40px;
  min-width: 40px;
  background: var(--cover-bg);
  background-size: cover;
  background-position: center;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  font-size: 13px;
}
.sidebar-avatar.circle { border-radius: 20px; }
.sidebar-avatar.square { border-radius: 6px; }
.liked-avatar {
  border-radius: 6px;
  color: var(--primary);
  font-size: 18px;
}

.sidebar-item-text { overflow: hidden; flex: 1; min-width: 0; }
.sidebar-item-title {
  font-size: 13px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.sidebar-item-subtitle {
  font-size: 11px;
  color: var(--text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sidebar-list { padding-top: 4px; }

/* ── Content / views ─────────────────────────────────────────────────── */
.content {
  flex: 1;
  overflow-y: auto;
  min-width: 0;
}

.view { display: none; padding: 20px 24px 40px; }
.view.active { display: block; }

.home-welcome {
  padding-top: 80px;
  text-align: center;
  color: var(--text-secondary);
}
.home-welcome h1 { color: var(--text-primary); }

/* Page header (artist/album) */
.page-header {
  display: flex;
  gap: 20px;
  align-items: flex-end;
  margin-bottom: 16px;
}
.page-header-artist { align-items: center; }
.page-eyebrow {
  color: var(--text-secondary);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 4px;
}
.page-title {
  font-size: 22px;
  font-weight: 700;
  margin: 0 0 8px;
  word-break: break-word;
}
.page-meta {
  color: var(--text-secondary);
  font-size: 13px;
}
.page-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 12px;
}

.cover-round {
  width: 120px;
  height: 120px;
  min-width: 120px;
  border-radius: 60px;
  background: var(--surface-light);
  background-size: cover;
  background-position: center;
}
.cover-square {
  width: 180px;
  height: 180px;
  min-width: 180px;
  border-radius: 14px;
  background: var(--surface-light);
  background-size: cover;
  background-position: center;
}

.artist-name-link {
  color: var(--text-secondary);
  cursor: pointer;
}
.artist-name-link:hover { color: var(--text-primary); text-decoration: underline; }

.heart-btn {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-size: 20px;
  padding: 4px 8px;
}
.heart-btn.liked { color: var(--primary); }
.heart-btn:hover { color: var(--text-primary); }
.heart-btn.liked:hover { color: var(--primary-hover); }

.pill-btn {
  height: 36px;
  padding: 0 22px;
  border-radius: 18px;
  border: none;
  background: var(--primary);
  color: #000;
  font-weight: 600;
  font-size: 13px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.pill-btn:hover { background: var(--primary-hover); }

.outline-btn {
  height: 36px;
  padding: 0 18px;
  border-radius: 18px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-primary);
  font-size: 13px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.outline-btn:hover { background: var(--surface-light); }

.section-divider {
  height: 1px;
  background: var(--border);
  margin: 16px 0;
}
.section-header {
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 12px;
}

/* Album grid */
.album-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, 170px);
  gap: 16px;
}
.album-card {
  width: 170px;
  padding: 8px;
  border-radius: 14px;
  cursor: pointer;
  text-align: center;
}
.album-card:hover { background: var(--surface-light); }
.album-card .cover-square {
  width: 150px;
  height: 150px;
  min-width: 150px;
  margin: 0 auto 8px;
  border-radius: 14px;
}
.album-card .card-title {
  font-size: 13px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.album-card .card-subtitle {
  font-size: 11px;
  color: var(--text-secondary);
  margin-top: 2px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Track list */
.track-list-head {
  display: grid;
  grid-template-columns: 32px 1fr 32px 60px;
  gap: 10px;
  padding: 4px 8px;
  color: var(--text-secondary);
  font-size: 11px;
  text-transform: uppercase;
  border-bottom: 1px solid var(--border);
  margin-bottom: 4px;
}

.track-row {
  display: grid;
  grid-template-columns: 32px 1fr 32px 60px;
  align-items: center;
  gap: 10px;
  padding: 6px 8px;
  border-radius: 6px;
  cursor: pointer;
}
.track-row:hover { background: var(--surface-light); }
.track-row.playing { color: var(--primary); }
.track-row .track-num {
  color: var(--text-secondary);
  font-size: 13px;
  text-align: center;
}
.track-row.playing .track-num { color: var(--primary); }
.track-row .track-title-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}
.track-row .track-cover {
  width: 36px;
  height: 36px;
  min-width: 36px;
  border-radius: 4px;
  background: var(--cover-bg);
  background-size: cover;
  background-position: center;
}
.track-row .track-title-col {
  min-width: 0;
  overflow: hidden;
}
.track-row .track-title {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  font-size: 13px;
}
.track-row .track-artist {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  font-size: 11px;
  color: var(--text-secondary);
}
.track-row .track-duration {
  color: var(--text-secondary);
  font-size: 12px;
  text-align: right;
}
.track-row .track-like {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-size: 15px;
  text-align: center;
}
.track-row .track-like.liked { color: var(--primary); }
.track-row .track-like:hover { color: var(--text-primary); }
.track-row .track-like.liked:hover { color: var(--primary-hover); }

/* Search results */
.search-section { margin-bottom: 24px; }
.search-section-title {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-secondary);
  margin-bottom: 10px;
}
.search-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px;
  border-radius: 8px;
  cursor: pointer;
}
.search-row:hover { background: var(--surface-light); }
.search-row.playing .search-row-title { color: var(--primary); }
.search-row-cover {
  width: 48px;
  height: 48px;
  min-width: 48px;
  background: var(--cover-bg);
  background-size: cover;
  background-position: center;
}
.search-row-cover.circle { border-radius: 24px; }
.search-row-cover.rounded6 { border-radius: 6px; }
.search-row-cover.rounded4 {
  width: 40px; height: 40px; min-width: 40px;
  border-radius: 4px;
}
.search-row-text { min-width: 0; overflow: hidden; }
.search-row-title {
  font-size: 13px;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.search-row-sub {
  font-size: 11px;
  color: var(--text-secondary);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.search-empty {
  color: var(--text-secondary);
  padding: 40px 0;
  text-align: center;
}

/* ── Player bar ──────────────────────────────────────────────────────── */
.playerbar {
  height: 90px;
  min-height: 90px;
  background: var(--surface);
  border-top: 1px solid var(--border);
  display: grid;
  grid-template-columns: 1fr minmax(340px, 640px) 1fr;
  align-items: center;
  padding: 6px 16px;
  gap: 16px;
}

.pb-left {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}
.pb-cover {
  width: 56px;
  height: 56px;
  min-width: 56px;
  border-radius: 6px;
  background: var(--cover-bg);
  background-size: cover;
  background-position: center;
}
.pb-info { min-width: 0; overflow: hidden; flex: 1; }
.pb-marquee {
  overflow: hidden;
  white-space: nowrap;
}
.pb-marquee span { display: inline-block; }
.pb-marquee.scrolling .marquee-inner {
  animation: marquee-bounce 7s ease-in-out infinite;
}
@keyframes marquee-bounce {
  0%, 12% { transform: translateX(0); }
  45%, 55% { transform: translateX(var(--marquee-distance)); }
  88%, 100% { transform: translateX(0); }
}
#pb-title span { font-weight: 600; font-size: 13px; cursor: pointer; }
#pb-title span:hover { text-decoration: underline; }
#pb-artist span { font-size: 12px; color: var(--text-secondary); cursor: pointer; }
#pb-artist span:hover { text-decoration: underline; }
#pb-album span { font-size: 11px; color: var(--text-secondary); cursor: pointer; }
#pb-album span:hover { text-decoration: underline; }

.icon-btn {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-size: 14px;
  width: 32px;
  height: 32px;
  border-radius: 16px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.icon-btn:hover { color: var(--text-primary); }
.icon-btn.active { color: var(--primary); }
.icon-btn:disabled { opacity: 0.4; cursor: default; }

.like-btn { font-size: 16px; }
.like-btn.liked { color: var(--primary); }

.pb-center {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  min-width: 0;
}
.pb-transport {
  display: flex;
  align-items: center;
  gap: 6px;
}
/* Transport glyphs (shuffle/prev/next/repeat) are full-contrast by default,
   turning accent-colored on hover/active — not muted like the heart/settings
   icons. Matches _GlyphButton in Project/ui/playback_controls.py. */
.pb-transport .icon-btn { color: var(--text-primary); }
.pb-transport .icon-btn:hover,
.pb-transport .icon-btn.active { color: var(--primary); }

.play-btn {
  width: 40px;
  height: 40px;
  border-radius: 20px;
  border: none;
  background: var(--text-primary);
  color: var(--bg);
  display: flex;
  align-items: center;
  justify-content: center;
}
.play-btn:hover { background: var(--text-secondary); }
.play-btn svg { display: block; }

.pb-seek-row {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
}
.pb-time {
  font-size: 11px;
  color: var(--text-secondary);
  min-width: 38px;
  text-align: center;
}

.pb-slider {
  -webkit-appearance: none;
  appearance: none;
  height: 4px;
  border-radius: 2px;
  background: var(--border);
  flex: 1;
  min-width: 100px;
  outline: none;
}
.pb-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 12px;
  height: 12px;
  border-radius: 6px;
  background: #fff;
  cursor: pointer;
}
.pb-slider::-moz-range-thumb {
  width: 12px;
  height: 12px;
  border-radius: 6px;
  background: #fff;
  border: none;
  cursor: pointer;
}
.pb-slider::-moz-range-progress { background: var(--primary); border-radius: 2px; }

#pb-seek { min-width: 340px; }

.pb-right {
  display: flex;
  align-items: center;
  gap: 8px;
  justify-content: flex-end;
}
.pb-volume { max-width: 100px; min-width: 60px; }
.pb-vol-icon { opacity: 0.8; color: var(--text-secondary); flex-shrink: 0; }

@media (max-width: 1000px) {
  .sidebar { width: 200px; min-width: 200px; }
  #pb-seek { min-width: 160px; }
  .playerbar { grid-template-columns: minmax(160px,1fr) minmax(200px,2fr) minmax(80px,0.6fr); }
  .pb-album-row { display: none; }
}

/* ── Phones ──────────────────────────────────────────────────────────── */
@media (max-width: 680px) {
  .icon-btn.sidebar-toggle-btn { display: inline-flex; }

  .topbar { padding: 0 10px; gap: 8px; }
  .topbar-account { gap: 8px; }
  .topbar-search { max-width: none; }

  /* Sidebar becomes an off-canvas drawer instead of a permanent column. */
  .body { position: relative; overflow: hidden; }
  .sidebar {
    position: fixed;
    top: 58px;
    left: 0;
    bottom: 0;
    width: 260px;
    max-width: 82vw;
    min-width: 0;
    z-index: 50;
    transform: translateX(-100%);
    transition: transform 0.22s ease;
    box-shadow: 4px 0 20px rgba(0, 0, 0, 0.4);
  }
  .sidebar.open { transform: translateX(0); }

  .sidebar-backdrop {
    display: block;
    position: fixed;
    top: 58px;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 40;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.22s ease;
  }
  .sidebar-backdrop.visible { opacity: 1; pointer-events: auto; }

  .view { padding: 14px 12px 28px; }
  .page-header { gap: 14px; }
  .page-title { font-size: 18px; }
  .cover-round { width: 84px; height: 84px; min-width: 84px; border-radius: 42px; }
  .cover-square { width: 120px; height: 120px; min-width: 120px; }
  .album-grid { grid-template-columns: repeat(auto-fill, minmax(128px, 1fr)); }
  .album-card { width: auto; }
  .album-card .cover-square { width: 100%; height: auto; aspect-ratio: 1 / 1; }

  /* Player bar: stack info / transport instead of a 3-column grid, drop the
     volume slider (touch users adjust volume with hardware buttons anyway,
     and iOS Safari ignores audio.volume entirely). */
  .playerbar {
    display: flex;
    flex-direction: column;
    height: auto;
    min-height: auto;
    padding: 8px 10px;
    gap: 6px;
  }
  .pb-right { display: none; }
  .pb-left { width: 100%; }
  .pb-center { width: 100%; }
  #pb-seek { min-width: 0; }
}

@media (max-width: 420px) {
  .logo-text { display: none; }
  #account-name { display: none; }
}