/* ============================================================
   1. DESIGN TOKENS
   ============================================================ */
:root {
  --cpt-bg:          #fff8ec;
  --cpt-surface:     #ffffff;
  --cpt-text:        #2e2a26;
  --cpt-muted:       #6b6259;
  --cpt-accent:      #ff6f59;
  --cpt-accent-2:    #2ec4b6;
  --cpt-warn:        #f4a300;
  --cpt-danger:      #e8543f;
  --cpt-border:      #f0e4d0;
  --cpt-radius:      16px;
  --cpt-radius-sm:   10px;
  --cpt-shadow:      0 4px 20px rgba(46, 42, 38, .10);
  --cpt-transition:  0.2s ease;
}

/* ============================================================
   2. THÈME SOMBRE
   ============================================================ */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --cpt-bg:      #201a16;
    --cpt-surface: #2b2420;
    --cpt-text:    #f5efe6;
    --cpt-muted:   #b8ac9e;
    --cpt-border:  #3c332c;
    --cpt-shadow:  0 4px 20px rgba(0, 0, 0, .35);
  }
}
:root[data-theme="dark"] {
  --cpt-bg:      #201a16;
  --cpt-surface: #2b2420;
  --cpt-text:    #f5efe6;
  --cpt-muted:   #b8ac9e;
  --cpt-border:  #3c332c;
  --cpt-shadow:  0 4px 20px rgba(0, 0, 0, .35);
}

/* ============================================================
   3. LAYOUT APP PRINCIPAL
   ============================================================ */
.cpt-app {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  background: var(--cpt-bg);
  color: var(--cpt-text);
  padding: 1.5rem;
  border-radius: var(--cpt-radius);
}

/* ============================================================
   4. ZONE A — HEADER
   ============================================================ */
.cpt-zone-a {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.cpt-title {
  font-size: clamp(1.5rem, 4vw, 2.2rem);
  font-weight: 700;
  margin: 0;
}

.cpt-subtitle {
  color: var(--cpt-muted);
  margin: 0;
  font-size: clamp(0.9rem, 2vw, 1.05rem);
}

.cpt-header-controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.cpt-lang-filter {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

/* ============================================================
   5. ZONE B — LECTEUR
   ============================================================ */
.cpt-zone-b {
  background: var(--cpt-surface);
  border: 1px solid var(--cpt-border);
  border-radius: var(--cpt-radius);
  box-shadow: var(--cpt-shadow);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.cpt-now-playing {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.cpt-cover {
  flex: 0 0 auto;
  width: 4rem;
  height: 4rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  background: linear-gradient(135deg, var(--cpt-accent), var(--cpt-accent-2));
  border-radius: var(--cpt-radius-sm);
}

.cpt-track-info { min-width: 0; }

.cpt-track-title {
  font-size: clamp(1.1rem, 3vw, 1.4rem);
  font-weight: 600;
  margin: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.cpt-track-meta {
  color: var(--cpt-muted);
  margin: 0.15rem 0 0;
  font-size: 0.9rem;
}

.cpt-lyrics {
  max-height: 10rem;
  overflow-y: auto;
  background: var(--cpt-bg);
  border: 1px solid var(--cpt-border);
  border-radius: var(--cpt-radius-sm);
  padding: 1rem;
}

.cpt-lyrics-placeholder {
  color: var(--cpt-muted);
  margin: 0;
  font-style: italic;
}

.cpt-lyrics-text {
  margin: 0;
  white-space: pre-wrap;
  font-family: inherit;
  font-size: 1rem;
  line-height: 1.6;
}

.cpt-progress-area {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.cpt-timer-row {
  display: flex;
  justify-content: space-between;
  font-variant-numeric: tabular-nums;
  font-size: 0.85rem;
  color: var(--cpt-muted);
}

.cpt-progress-bar-container {
  cursor: pointer;
  padding: 0.5rem 0;
}

.cpt-progress-bar-bg {
  position: relative;
  height: 8px;
  border-radius: 100px;
  background: var(--cpt-border);
  overflow: hidden;
}

.cpt-progress-bar-fill {
  position: absolute;
  inset: 0;
  width: 0%;
  background: var(--cpt-accent);
  border-radius: 100px;
  transition: width 0.1s linear;
}

.cpt-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
}

.cpt-volume-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.cpt-volume-slider { flex: 1; }

/* ============================================================
   6. ZONE C — PLAYLIST
   ============================================================ */
.cpt-zone-c {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.cpt-playlist-title {
  font-size: 1.1rem;
  font-weight: 600;
  margin: 0;
}

.cpt-playlist {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.cpt-playlist-btn {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  background: var(--cpt-surface);
  border: 1px solid var(--cpt-border);
  border-radius: var(--cpt-radius-sm);
  padding: 0.75rem 1rem;
  text-align: left;
  cursor: pointer;
  transition: background var(--cpt-transition), border-color var(--cpt-transition);
}

.cpt-playlist-btn:hover { border-color: var(--cpt-accent); }

.cpt-playlist-num {
  flex: 0 0 auto;
  width: 1.75rem;
  height: 1.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--cpt-bg);
  font-size: 0.85rem;
  font-weight: 600;
}

.cpt-playlist-name {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.cpt-empty-state {
  color: var(--cpt-muted);
  font-style: italic;
}

/* ============================================================
   7. COMPOSANTS GÉNÉRIQUES
   ============================================================ */
.cpt-chip {
  background: var(--cpt-surface);
  border: 1px solid var(--cpt-border);
  border-radius: 100px;
  padding: 0.4rem 0.9rem;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--cpt-muted);
  cursor: pointer;
  transition: all var(--cpt-transition);
}

.cpt-chip:hover { color: var(--cpt-text); }

.cpt-btn-icon {
  background: var(--cpt-surface);
  border: 1px solid var(--cpt-border);
  border-radius: 50%;
  width: 2.25rem;
  height: 2.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 1rem;
}

.cpt-btn-ctrl {
  background: var(--cpt-surface);
  border: 1px solid var(--cpt-border);
  border-radius: 50%;
  width: 2.75rem;
  height: 2.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  cursor: pointer;
  transition: transform var(--cpt-transition), border-color var(--cpt-transition);
}

.cpt-btn-ctrl:hover:not(:disabled) { transform: scale(1.06); border-color: var(--cpt-accent); }
.cpt-btn-ctrl:disabled { opacity: 0.4; cursor: not-allowed; }

.cpt-btn-play {
  width: 3.75rem;
  height: 3.75rem;
  font-size: 1.5rem;
  background: var(--cpt-accent);
  color: #fff;
  border-color: var(--cpt-accent);
}

.cpt-label-small {
  font-size: 0.85rem;
  color: var(--cpt-muted);
}

.cpt-lang-badge {
  font-size: 0.7rem;
  font-weight: 700;
  padding: 0.1rem 0.4rem;
  border-radius: 4px;
  background: var(--cpt-bg);
  color: var(--cpt-muted);
}

.cpt-lang-badge--fr { background: #e8f0ff; color: #2255a4; }
.cpt-lang-badge--en { background: #ffe9e9; color: #b3261e; }

.cpt-badge {
  font-size: 0.7rem;
  padding: 0.15rem 0.5rem;
  border-radius: 100px;
}

.cpt-badge--warning {
  background: rgba(244, 163, 0, 0.15);
  color: var(--cpt-warn);
}

.cpt-toast {
  position: fixed;
  bottom: 1.25rem;
  left: 50%;
  transform: translateX(-50%);
  background: var(--cpt-text);
  color: var(--cpt-bg);
  padding: 0.65rem 1.25rem;
  border-radius: var(--cpt-radius-sm);
  box-shadow: var(--cpt-shadow);
  z-index: 200;
}

/* ============================================================
   8. ÉTATS
   ============================================================ */
.cpt-chip.active { background: var(--cpt-accent); color: #fff; border-color: var(--cpt-accent); }

.cpt-playlist-item[hidden] { display: none; }

.cpt-playlist-item.playing .cpt-playlist-btn {
  border-color: var(--cpt-accent-2);
  background: rgba(46, 196, 182, 0.08);
}

.cpt-playlist-item.playing .cpt-playlist-num {
  background: var(--cpt-accent-2);
  color: #fff;
}

.cpt-btn-ctrl[aria-pressed="true"] {
  background: var(--cpt-accent-2);
  color: #fff;
  border-color: var(--cpt-accent-2);
}

/* ============================================================
   9. RESPONSIVE
   ============================================================ */
@media (max-width: 600px) {
  .cpt-app { padding: 1rem; gap: 1rem; }
  .cpt-zone-b { padding: 1rem; }
  .cpt-controls { gap: 0.5rem; }
  .cpt-btn-ctrl { width: 2.5rem; height: 2.5rem; }
  .cpt-btn-play { width: 3.25rem; height: 3.25rem; }
}

/* ============================================================
   ACCESSIBILITÉ
   ============================================================ */
:focus-visible { outline: 2px solid var(--cpt-accent); outline-offset: 2px; }