:root {
  color-scheme: dark;
  --bg: #080c12;
  --surface: #121724;
  --muted: #5c6677;
  --text: #eef2ff;
  --text-secondary: #99a1b5;
  --accent: #7f5dff;
  --accent-soft: rgba(127, 93, 255, 0.16);
  --border: rgba(255, 255, 255, 0.08);
  --danger: #e9677f;
  --shadow: 0 22px 60px rgba(0, 0, 0, 0.25);
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  min-height: 100%;
  background: radial-gradient(circle at top, rgba(127, 93, 255, 0.14), transparent 28%), var(--bg);
  color: var(--text);
  font-family: Inter, system-ui, sans-serif;
}

body {
  display: flex;
  justify-content: center;
  padding: 0;
}

button, input {
  font: inherit;
}

button {
  border: none;
  background: none;
  color: inherit;
}

.app {
  width: min(100%, 980px);
  min-height: 100vh;
  display: grid;
  grid-template-rows: auto 1fr auto;
  padding: env(safe-area-inset-top) 0 env(safe-area-inset-bottom);
}

.topbar {
  display: grid;
  gap: 0.75rem;
  padding: 1rem 1rem 0.75rem;
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(8, 12, 18, 0.88);
  backdrop-filter: blur(12px);
}

.brand-group, .search-group, .tools {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.brand {
  display: grid;
  gap: 0.15rem;
}

.brand-logo {
  font-size: 1.2rem;
  font-weight: 700;
}

.brand-subtitle {
  color: var(--muted);
  font-size: 0.88rem;
}

.search-group {
  flex: 1;
}

.search-group input {
  width: 100%;
  border-radius: 999px;
  padding: 0.95rem 1rem;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
}

.pill-toggle {
  padding: 0.75rem 1rem;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-secondary);
}

.primary-button, .secondary-button, .icon-button {
  border-radius: 999px;
  padding: 0.85rem 1rem;
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
  cursor: pointer;
}

.primary-button {
  background: linear-gradient(135deg, #7f5dff, #76a0ff);
  color: #fff;
}

.icon-button {
  width: 2.6rem;
  height: 2.6rem;
  display: grid;
  place-items: center;
  background: rgba(255, 255, 255, 0.06);
}

.content {
  display: grid;
  gap: 1rem;
  padding: 0 1rem 1rem;
}

.library-panel, .lyrics-panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 30px;
  overflow: hidden;
  min-height: 60vh;
}

.toolbar-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 1rem;
}

.selection-actions {
  display: grid;
  gap: 0.75rem;
  padding: 0 1rem 1rem;
}

.selection-actions.hidden {
  display: none;
}

.selection-actions .selection-summary {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.selection-actions .selection-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.breadcrumbs {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  color: var(--text-secondary);
}

.breadcrumbs span {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
}

.search-options {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 0 1rem 1rem;
  color: var(--text-secondary);
  font-size: 0.92rem;
}

.tag-hint code {
  color: var(--text);
  background: rgba(255, 255, 255, 0.06);
  border-radius: 0.35rem;
  padding: 0.15rem 0.4rem;
}

.list-container {
  min-height: 20rem;
  position: relative;
  overflow: auto;
  scroll-behavior: smooth;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.list-viewport {
  position: relative;
}

.list-item {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 1rem;
  align-items: center;
  padding: 1rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  min-height: 5.4rem;
}

.item-icon {
  width: 3.2rem;
  height: 3.2rem;
  border-radius: 1rem;
  background: rgba(127, 93, 255, 0.15);
  display: grid;
  place-items: center;
  color: #d8dce8;
  font-size: 1.2rem;
}

.item-content {
  display: grid;
  gap: 0.3rem;
}

.item-title {
  font-weight: 600;
}

.item-subtitle {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.tag-chip {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 999px;
  color: var(--text-secondary);
  font-size: 0.85rem;
  padding: 0.18rem 0.6rem;
  margin-right: 0.35rem;
  cursor: pointer;
}

.tag-chip:hover {
  background: rgba(255, 255, 255, 0.14);
}

.item-actions {
  display: flex;
  gap: 0.5rem;
  align-items: center;
}

.select-checkbox {
  width: 1.5rem;
  height: 1.5rem;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 0.35rem;
  background: rgba(255, 255, 255, 0.04);
}

.select-checkbox.active {
  background: var(--accent);
  border-color: var(--accent);
}

.select-checkbox.hidden {
  display: none;
}

.empty-state {
  padding: 4rem 2rem;
  text-align: center;
}

.empty-state.hidden {
  display: none;
}

.empty-text {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
}

.empty-subtext {
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
}

.empty-actions {
  display: flex;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.lyrics-panel {
  display: grid;
  gap: 1rem;
  padding: 1rem;
}

.lyrics-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.lyrics-header-actions {
  display: flex;
  gap: 0.5rem;
}

.app.lyrics-fullscreen {
  grid-template-rows: 0 1fr auto;
}

.app.lyrics-fullscreen .topbar,
.app.lyrics-fullscreen .library-panel {
  display: none;
}

.app.lyrics-fullscreen .content {
  padding-top: 0;
}

.lyrics-panel.fullscreen {
  min-height: calc(100vh - 7.5rem);
}

.track-title {
  font-size: 1.25rem;
  font-weight: 700;
}

.track-meta {
  color: var(--text-secondary);
}

.lyrics-content {
  background: rgba(255, 255, 255, 0.03);
  border-radius: 1.5rem;
  padding: 1.5rem;
  white-space: pre-wrap;
  line-height: 1.75;
  overflow: auto;
  max-height: 55vh;
}

.player-footer {
  display: grid;
  grid-template-columns: 1fr auto 1.5fr;
  gap: 1rem;
  align-items: center;
  padding: 1rem;
  position: sticky;
  bottom: 0;
  background: rgba(8, 12, 18, 0.96);
  backdrop-filter: blur(12px);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.player-controls {
  display: flex;
  gap: 0.75rem;
  align-items: center;
}

.play-button {
  width: 3.8rem;
  height: 3.8rem;
  border-radius: 50%;
  background: var(--accent);
  color: white;
  font-size: 1.2rem;
}

.player-right {
  display: grid;
  gap: 0.75rem;
}

#seekBar {
  width: 100%;
  accent-color: var(--accent);
}

.modal-layer, .drawer-layer {
  position: fixed;
  inset: 0;
  background: rgba(4, 7, 14, 0.75);
  z-index: 40;
}

.modal-layer.hidden, .drawer-layer.hidden {
  display: none;
}

.modal-window {
  position: absolute;
  inset: auto 1rem 1rem 1rem;
  margin: auto;
  max-width: 520px;
  border-radius: 1.5rem;
  background: #111721;
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: var(--shadow);
  padding: 1.25rem;
}

.modal-window h2 {
  margin: 0 0 1rem;
  font-size: 1.2rem;
}

.modal-window label {
  display: grid;
  gap: 0.4rem;
  margin-bottom: 1rem;
  color: var(--text-secondary);
}

.modal-window input[type="text"], .modal-window textarea, .modal-window select {
  width: 100%;
  padding: 0.85rem 1rem;
  border-radius: 1rem;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
}

.modal-window textarea {
  min-height: 160px;
  resize: vertical;
}

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 0.75rem;
  margin-top: 1rem;
}

@media (min-width: 720px) {
  .topbar {
    grid-template-columns: auto 1fr auto;
    align-items: center;
  }
}