/* --- Modern React/Material UI inspired styles --- */
.app-shell {
  min-height: 100vh;
  background: #f5f6f8;
  font-family: 'Inter', system-ui, sans-serif;
  color: #222;
}
.app-header {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 4px;
  padding: 32px 0 12px 0;
}
.app-title {
  font-size: 2.2rem;
  font-weight: 700;
  color: #0a58ca;
  margin: 0;
  letter-spacing: -1px;
}
.app-updated {
  color: #666;
  font-size: 1rem;
  margin-top: 2px;
}
.audio-list {
  margin-top: 8px;
}
.card {
  background: #fff;
  border-radius: 12px;
  padding: 20px 18px 16px 18px;
  margin-top: 16px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
  cursor: pointer;
  border: 2px solid transparent;
  transition: border 0.2s, box-shadow 0.2s;
}
.card.selected, .card:focus {
  border: 2px solid #0a58ca;
  box-shadow: 0 4px 16px rgba(10,88,202,0.08);
  outline: none;
}
.card h2 {
  font-size: 1.3rem;
  font-weight: 600;
  margin: 0 0 6px 0;
}
.muted {
  color: #888;
  font-size: 0.98rem;
  margin: 0 0 8px 0;
}
.player-bar {
  position: fixed;
  left: 0; right: 0; bottom: 0;
  background: #fff;
  box-shadow: 0 -2px 12px rgba(0,0,0,0.10);
  padding: 18px 16px 12px 16px;
  display: flex;
  flex-direction: column;
  align-items: center;
  z-index: 100;
  border-top-left-radius: 16px;
  border-top-right-radius: 16px;
}
.player-title {
  font-size: 1.1em;
  margin-bottom: 8px;
  text-align: center;
  font-weight: 600;
}
.player-bar audio {
  width: 100%;
  max-width: 600px;
  margin-bottom: 8px;
}
.btn {
  display: inline-block;
  padding: 8px 20px;
  border-radius: 6px;
  border: none;
  font-size: 1rem;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}
.btn-secondary {
  background: #e7eaf3;
  color: #0a58ca;
  border: 1px solid #b6c6e3;
}
.btn-secondary:hover, .btn-secondary:focus {
  background: #d0e2ff;
  color: #063a7a;
}
@media (max-width: 600px) {
  .app-header { padding: 16px 0 8px 0; }
  .card { padding: 12px 8px; }
  .player-bar { padding: 10px 2px; }
}