@media (max-width: 900px) {
  .sidebar {
    width: 205px;
    padding: 25px 15px;
  }

  .main-content {
    padding: 30px 25px;
  }

  .hero-orb {
    width: 180px;
    height: 180px;
    right: 7%;
  }

  .visualizer-panel {
    left: 205px;
  }

  .music-player {
    grid-template-columns: 1fr 1.4fr;
  }

  .player-extra {
    display: none;
  }
}

@media (max-width: 650px) {
  .app-shell {
    display: block;
    padding-bottom: 155px;
  }

  .sidebar {
    min-height: auto;
    width: 100%;
    height: auto;
    padding: 14px 17px;
    border-right: none;
    border-bottom: 1px solid var(--border);
    position: relative;
  }

  .brand {
    margin-bottom: 15px;
  }

  .nav-section {
    display: flex;
    gap: 6px;
    margin-bottom: 0;
    overflow-x: auto;
  }

  .nav-label, .sidebar-footer {
    display: none;
  }

  .nav-item {
    width: auto;
    white-space: nowrap;
    padding: 10px 12px;
    font-size: 13px;
    margin: 0;
  }

  .main-content {
    padding: 25px 17px;
  }

  .topbar {
    margin-bottom: 24px;
  }

  .greeting h1 {
    font-size: 28px;
  }

  .hero-card {
    min-height: 265px;
    padding: 27px 22px;
    border-radius: 20px;
  }

  .hero-content h2 {
    font-size: 36px;
  }

  .hero-content p {
    max-width: 210px;
    line-height: 1.6;
  }

  .hero-orb {
    width: 125px;
    height: 125px;
    right: -22px;
    top: 18%;
    opacity: .65;
  }

  .hero-orb .orb-ring {
    inset: -10px;
  }

  .content-section {
    margin-top: 30px;
  }

  .add-music-panel {
    flex-direction: column;
    align-items: stretch;
    padding: 16px;
  }

  .add-music-panel input {
    width: 100%;
  }

  .visualizer-panel {
    left: 0;
    bottom: 115px;
    height: 25px;
  }

  .music-player {
    min-height: 100px;
    padding: 10px 13px;
    grid-template-columns: 1fr;
    gap: 7px;
  }

  .now-playing {
    justify-content: center;
  }

  .album-art {
    width: 37px;
    height: 37px;
  }

  .player-center {
    max-width: 100%;
  }

  .player-controls {
    gap: 25px;
    margin-bottom: 6px;
  }

  .player-controls .play-button {
    width: 33px;
    height: 33px;
  }

  .player-controls button {
    font-size: 15px;
  }

  .progress-container {
    gap: 7px;
  }
}

@media (max-width: 380px) {
  .nav-item {
    padding: 9px;
    gap: 7px;
  }

  .hero-content h2 {
    font-size: 31px;
  }

  .hero-orb {
    opacity: .35;
  }
}