/* ==========================================================================
   MiniAmp - design tokens
   ========================================================================== */
:root {
  --font-ui: 'Space Grotesk', system-ui, sans-serif;
  --font-display: 'JetBrains Mono', 'Courier New', monospace;

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;

  --gap-xs: 4px;
  --gap-sm: 8px;
  --gap-md: 14px;
  --gap-lg: 22px;

  --accent: #e8a33d;
  --danger: #c25450;
}

/* Dark theme (default) */
html[data-theme="dark"] {
  --page-bg: #0a0908;
  --bg: #121212;
  --surface: #1c1b19;
  --surface-raised: #242320;
  --border: #34322d;
  --text-primary: #f2efea;
  --text-secondary: #8b8880;
  --text-muted: #5c5a54;
  --accent-contrast: #121212;
}

/* Light theme */
html[data-theme="light"] {
  --page-bg: #d8d4cb;
  --bg: #f5f3ef;
  --surface: #ffffff;
  --surface-raised: #ececE6;
  --border: #ddd9d0;
  --text-primary: #201e1a;
  --text-secondary: #6b6860;
  --text-muted: #a19d92;
  --accent-contrast: #201e1a;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  background: var(--page-bg);
  font-family: var(--font-ui);
  -webkit-tap-highlight-color: transparent;
  overscroll-behavior: none;
}

button {
  font-family: inherit;
  border: none;
  background: none;
  color: inherit;
  cursor: pointer;
}

button:focus-visible,
[tabindex]:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* ==========================================================================
   App shell - compact, no oversized hero areas
   ========================================================================== */
#app {
  max-width: 480px;
  margin: 0 auto;
  height: 100vh;
  background: var(--bg);
  color: var(--text-primary);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.topbar {
  flex-shrink: 0;
  padding: 10px var(--gap-md) 6px;
}

.app-name {
  margin: 0;
  font-size: 15px;
  font-weight: 500;
  letter-spacing: 0.02em;
  text-align: center;
  color: var(--text-secondary);
}

/* ==========================================================================
   Persistent now-playing marquee
   ========================================================================== */
.marquee-bar {
  flex-shrink: 0;
  height: 30px;
  margin: 0 var(--gap-md);
  border-radius: var(--radius-sm);
  background: var(--surface);
  border: 1px solid var(--border);
  overflow: hidden;
  display: flex;
  align-items: center;
}

.marquee-track {
  display: inline-flex;
  white-space: nowrap;
  padding-left: var(--gap-sm);
}

.marquee-track span {
  font-size: 13px;
  color: var(--text-secondary);
  padding-right: 40px; /* gap before the looped copy, added by JS when scrolling */
}

.marquee-track.scrolling {
  animation: marquee-scroll linear infinite;
}

@keyframes marquee-scroll {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

/* ==========================================================================
   Tab bar
   ========================================================================== */
.tabbar {
  flex-shrink: 0;
  display: flex;
  margin: var(--gap-sm) var(--gap-md) 0;
  border-bottom: 1px solid var(--border);
}

.tab-btn {
  flex: 1;
  padding: 10px 4px;
  font-size: 13px;
  color: var(--text-secondary);
  border-bottom: 2px solid transparent;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.tab-btn.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

/* ==========================================================================
   Tab content
   ========================================================================== */
.tab-content {
  flex: 1;
  overflow: hidden;
  position: relative;
}

.tab-panel {
  display: none;
  flex-direction: column;
  height: 100%;
}

.tab-panel.active {
  display: flex;
}

.panel-header {
  flex-shrink: 0;
  padding: var(--gap-md) var(--gap-md) var(--gap-sm);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.header-icon-btn {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  background: var(--surface);
  border: 1px solid var(--border);
  flex-shrink: 0;
}
.header-icon-btn:hover { color: var(--accent); border-color: var(--accent); }
.header-icon-btn svg { width: 15px; height: 15px; }

.panel-title {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
}

/* ---- Main tab: song list ---- */
.song-list,
.playlist-library-list {
  flex: 1;
  overflow-y: auto;
  padding: 0 var(--gap-sm) var(--gap-sm);

  /* Firefox */
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}

.song-list::-webkit-scrollbar,
.playlist-library-list::-webkit-scrollbar {
  width: 6px;
}

.song-list::-webkit-scrollbar-track,
.playlist-library-list::-webkit-scrollbar-track {
  background: transparent;
}

.song-list::-webkit-scrollbar-thumb,
.playlist-library-list::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 3px;
}

.song-list::-webkit-scrollbar-thumb:hover,
.playlist-library-list::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted);
}

.song-list::-webkit-scrollbar-button,
.playlist-library-list::-webkit-scrollbar-button {
  display: none;
}

.song-row,
.playlist-row {
  display: flex;
  align-items: center;
  gap: var(--gap-sm);
  padding: 9px var(--gap-sm);
  border-radius: var(--radius-sm);
  touch-action: pan-y;
}

.song-row:active,
.playlist-row:active {
  background: var(--surface);
}

.song-row.playing {
  background: var(--surface);
}

.song-row .index,
.song-row .play-indicator {
  width: 20px;
  flex-shrink: 0;
  text-align: center;
  font-family: var(--font-display);
  font-size: 12px;
  color: var(--text-muted);
}

.song-row.playing .index,
.song-row.playing .play-indicator {
  color: var(--accent);
}

.song-row .meta,
.playlist-row .meta {
  flex: 1;
  min-width: 0;
}

.song-row .name,
.playlist-row .name {
  font-size: 14px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.song-row.playing .name {
  color: var(--accent);
}

.song-row .sub,
.playlist-row .sub {
  font-size: 11.5px;
  color: var(--text-muted);
  font-family: var(--font-display);
}

.song-row .handle {
  color: var(--text-muted);
  cursor: grab;
  flex-shrink: 0;
  display: flex;
}
.song-row .handle svg { width: 16px; height: 16px; }

.song-row.dragging,
.playlist-row.dragging {
  opacity: 0.4;
}

.row-icon-btn {
  color: var(--text-muted);
  flex-shrink: 0;
  display: flex;
  padding: 4px;
}
.row-icon-btn:hover { color: var(--danger); }
.row-icon-btn svg { width: 16px; height: 16px; }

.playlist-row .row-icon-btn.rename-btn:hover { color: var(--accent); }

.empty-state {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--gap-sm);
  color: var(--text-muted);
  padding: var(--gap-lg);
  text-align: center;
}
.empty-state svg { width: 34px; height: 34px; opacity: 0.5; }
.empty-state p { margin: 0; font-size: 13px; }

.add-files-bar {
  flex-shrink: 0;
  padding: var(--gap-sm) var(--gap-md) var(--gap-md);
}

.add-files-btn {
  width: 100%;
  padding: 11px;
  border-radius: var(--radius-md);
  background: var(--surface);
  border: 1px dashed var(--border);
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 13px;
}
.add-files-btn:hover { border-color: var(--accent); color: var(--accent); }
.add-files-btn svg { width: 16px; height: 16px; }

/* ---- Settings tab ---- */
.settings-list {
  padding: 0 var(--gap-md);
  display: flex;
  flex-direction: column;
  gap: var(--gap-sm);
}

.settings-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--gap-sm) 0;
  border-bottom: 1px solid var(--border);
}

.settings-label {
  font-size: 14px;
  color: var(--text-primary);
}

.theme-toggle {
  display: flex;
  background: var(--surface);
  border-radius: 999px;
  padding: 2px;
  border: 1px solid var(--border);
}

.theme-choice {
  padding: 5px 14px;
  border-radius: 999px;
  font-size: 12px;
  color: var(--text-secondary);
}

.theme-choice.active {
  background: var(--accent);
  color: var(--accent-contrast);
}

.danger-btn {
  padding: 7px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  color: var(--danger);
  font-size: 12.5px;
}
.danger-btn:hover { background: var(--danger); color: #fff; border-color: var(--danger); }

/* ---- Future tab ---- */
.future-placeholder {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--gap-sm);
  color: var(--text-muted);
  padding: var(--gap-lg);
  text-align: center;
}
.future-placeholder svg { width: 34px; height: 34px; opacity: 0.5; }
.future-placeholder p { margin: 0; font-size: 13px; max-width: 240px; }

/* ==========================================================================
   Persistent player bar (footer) - thin waveform + controls, always visible
   ========================================================================== */
.player-bar {
  flex-shrink: 0;
  padding: var(--gap-sm) var(--gap-md) 12px;
  border-top: 1px solid var(--border);
  background: var(--bg);
}

.waveform-thin {
  height: 26px;
  display: flex;
  align-items: center;
  gap: 1.5px;
  cursor: pointer;
  touch-action: none;
  margin-bottom: 4px;
}

.waveform-thin .bar {
  flex: 1;
  min-width: 1.5px;
  background: var(--border);
  border-radius: 1px;
  transition: background 0.1s;
}

.waveform-thin .bar.played {
  background: var(--accent);
}

.time-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-display);
  font-size: 11.5px;
  color: var(--text-secondary);
  margin-bottom: var(--gap-sm);
}

.song-counter {
  color: var(--text-muted);
}

.controls-row {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
}

.controls-main-group {
  grid-column: 2;
  display: flex;
  align-items: center;
  gap: var(--gap-lg);
}

.stop-btn {
  grid-column: 3;
  justify-self: end;
  width: 34px;
  height: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  border-left: 1px solid var(--border);
  margin-left: var(--gap-sm);
  padding-left: var(--gap-md);
}
.stop-btn:hover { color: var(--danger); }
.stop-btn svg { width: 16px; height: 16px; }

.control-btn {
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-primary);
}
.control-btn svg { width: 22px; height: 22px; }

.play-btn {
  width: 54px;
  height: 54px;
  border-radius: 50%;
  background: var(--accent);
  color: var(--accent-contrast);
  display: flex;
  align-items: center;
  justify-content: center;
}
.play-btn svg { width: 24px; height: 24px; }

/* Desktop OS drag-and-drop zone indicator */
.dropzone-active::after {
  content: '';
  position: fixed;
  inset: 8px;
  border: 2px dashed var(--accent);
  border-radius: var(--radius-md);
  pointer-events: none;
  z-index: 30;
}

/* ==========================================================================
   Import progress modal
   ========================================================================== */
.import-modal {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.55);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 50;
}

.import-modal.hidden { display: none; }

.import-card {
  width: min(300px, 88vw);
  background: var(--surface);
  border-radius: var(--radius-md);
  padding: var(--gap-lg) var(--gap-md);
  display: flex;
  flex-direction: column;
  gap: var(--gap-md);
}

.import-card h2 {
  margin: 0;
  font-size: 14px;
  font-weight: 500;
  text-align: center;
  color: var(--text-primary);
}

.import-progress-track {
  height: 5px;
  border-radius: 3px;
  background: var(--surface-raised);
  overflow: hidden;
}

.import-progress-fill {
  height: 100%;
  background: var(--accent);
  width: 0%;
  transition: width 0.2s ease;
}

.import-count {
  text-align: center;
  font-family: var(--font-display);
  font-size: 12.5px;
  color: var(--text-secondary);
}

.import-summary {
  font-size: 12.5px;
  color: var(--text-secondary);
  line-height: 1.6;
  text-align: center;
}

.import-summary.hidden { display: none; }

.import-summary .fail {
  color: var(--danger);
}

.import-close-btn {
  align-self: center;
  padding: 7px 18px;
  border-radius: 999px;
  background: var(--surface-raised);
  color: var(--text-primary);
  font-size: 12.5px;
}

.import-close-btn.hidden { display: none; }