* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
  background-color: #f5f5f5;
  color: #333;
  line-height: 1.5;
}

#app {
  max-width: 800px;
  margin: 0 auto;
  padding: 20px;
}

/* Header */
.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
  padding-bottom: 15px;
  border-bottom: 1px solid #e0e0e0;
}

.header h1 {
  font-size: 1.5rem;
  font-weight: 600;
  color: #1a1a1a;
}

.header-actions {
  display: flex;
  gap: 10px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 16px;
  border: none;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  background-color: #4a90d9;
  color: white;
}

.btn:hover {
  background-color: #3a7bc8;
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.btn-icon {
  padding: 8px;
  background-color: transparent;
  color: #666;
}

.btn-icon:hover {
  background-color: #e8e8e8;
  color: #333;
}

.btn-icon svg {
  width: 20px;
  height: 20px;
}

/* Loading */
.loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 60px 20px;
  color: #666;
}

.spinner {
  width: 40px;
  height: 40px;
  border: 3px solid #e0e0e0;
  border-top-color: #4a90d9;
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin-bottom: 15px;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Error */
.error {
  text-align: center;
  padding: 40px 20px;
  background-color: #fff3f3;
  border-radius: 8px;
  border: 1px solid #ffcdd2;
}

.error p {
  color: #c62828;
  margin-bottom: 15px;
}

/* Empty */
.empty {
  text-align: center;
  padding: 60px 20px;
  color: #999;
}

.empty-icon {
  width: 64px;
  height: 64px;
  margin-bottom: 15px;
  opacity: 0.5;
}

/* Voicemail List */
.voicemail-list {
  list-style: none;
}

.voicemail-item {
  background-color: white;
  border-radius: 8px;
  margin-bottom: 10px;
  padding: 15px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  transition: box-shadow 0.2s ease;
}

.voicemail-item:hover {
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.15);
}

.voicemail-item.new {
  border-left: 4px solid #4a90d9;
}

.voicemail-item > .voicemail-info {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 10px;
}

.voicemail-caller {
  display: flex;
  flex-direction: column;
}

.caller-name {
  font-weight: 600;
  color: #1a1a1a;
}

.caller-number {
  font-size: 0.875rem;
  color: #666;
}

.voicemail-meta {
  display: flex;
  gap: 15px;
  font-size: 0.875rem;
  color: #888;
}

.voicemail-folder {
  padding: 2px 8px;
  background-color: #e8e8e8;
  border-radius: 4px;
  font-size: 0.75rem;
  text-transform: uppercase;
}

.voicemail-folder.new {
  background-color: #e3f2fd;
  color: #1976d2;
}

/* Actions */
.voicemail-actions {
  display: flex;
  gap: 8px;
}

.btn-play .icon-pause {
  display: none;
}

.btn-play.playing {
  color: #4a90d9;
  background-color: #e3f2fd;
}

.btn-play.playing .icon-play {
  display: none;
}

.btn-play.playing .icon-pause {
  display: block;
}

.btn-transcribe.loading {
  animation: pulse 1.5s ease-in-out infinite;
}

.btn-transcribe.done {
  color: #4caf50;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

/* Audio Player */
.voicemail-player {
  margin-top: 12px;
  padding: 12px;
  background-color: #f8f9fa;
  border-radius: 6px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.player-progress-container {
  flex: 1;
  padding: 4px 0;
  cursor: pointer;
}

.player-progress-bar {
  position: relative;
  height: 6px;
  background-color: #e0e0e0;
  border-radius: 3px;
  overflow: visible;
}

.player-progress-fill {
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  background-color: #4a90d9;
  border-radius: 3px;
  width: 0%;
  transition: width 0.1s linear;
}

.player-progress-handle {
  position: absolute;
  top: 50%;
  left: 0%;
  transform: translate(-50%, -50%);
  width: 14px;
  height: 14px;
  background-color: #4a90d9;
  border-radius: 50%;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
  opacity: 0;
  transition: opacity 0.2s ease;
}

.player-progress-container:hover .player-progress-handle,
.voicemail-item.playing .player-progress-handle {
  opacity: 1;
}

.player-progress-container:hover .player-progress-bar {
  height: 8px;
}

.player-time {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 0.8125rem;
  font-family: 'SF Mono', 'Monaco', 'Consolas', monospace;
  color: #666;
  min-width: 85px;
  justify-content: flex-end;
}

.player-separator {
  color: #999;
}

/* Transcription */
.voicemail-transcription {
  margin-top: 10px;
  padding: 12px;
  background-color: #f8f9fa;
  border-radius: 6px;
  border-left: 3px solid #4a90d9;
}

.transcription-status {
  font-size: 0.875rem;
  color: #666;
  margin-bottom: 8px;
}

.transcription-status.error {
  color: #c62828;
}

.transcription-status.loading {
  display: flex;
  align-items: center;
  gap: 8px;
}

.transcription-status.loading::before {
  content: '';
  width: 14px;
  height: 14px;
  border: 2px solid #e0e0e0;
  border-top-color: #4a90d9;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

.transcription-text {
  font-size: 0.9375rem;
  color: #333;
  white-space: pre-wrap;
}

/* Responsive */
@media (max-width: 600px) {
  #app {
    padding: 15px;
  }

  .voicemail-item > .voicemail-info {
    flex-direction: column;
    gap: 8px;
  }

  .voicemail-meta {
    flex-wrap: wrap;
    gap: 8px;
  }
}