@media (max-width: 768px) {
  body {
    padding-bottom: 72px;
  }

  .mobile-bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: 56px;
    background: rgba(0, 0, 0, 0.97);
    border-top: 1px solid rgba(255,255,255,0.12);
    display: flex;
    justify-content: space-around;
    align-items: center;
    z-index: 9999;
  }

  .mobile-bottom-nav .nav-item {
    flex: 1;
    text-align: center;
    text-decoration: none;
    color: #cfcfcf;
    font-size: 10px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
  }

  .mobile-bottom-nav img {
    width: 22px;
    height: 18px;
    object-fit: contain;
  }

  .mobile-bottom-nav .nav-item.active {
    color: #fff;
  }
}

@media (min-width: 769px) {
  .mobile-bottom-nav {
    display: none;
  }
}

@media (max-width: 768px) {
  .mobile-browse-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.55);
    backdrop-filter: blur(6px);
    z-index: 9998;
    display: none;
  }

  .mobile-browse-overlay.show {
    display: block;
  }

  .mobile-browse-sheet {
    position: absolute;
    bottom: 56px;
    left: 12px;
    right: 12px;
    background: linear-gradient(180deg, #0c0c0c, #000);
    border-radius: 18px;
    padding: 18px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.8);
    animation: slideUp 0.25s ease;
  }

  @keyframes slideUp {
    from {
      transform: translateY(20px);
      opacity: 0;
    }
    to {
      transform: translateY(0);
      opacity: 1;
    }
  }

  .mobile-browse-sheet .browse-title {
    font-size: 14px;
    color: #bbb;
    margin-bottom: 14px;
  }

  .mobile-browse-sheet .browse-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
  }

  .mobile-browse-sheet .browse-card {
    background: #111;
    border-radius: 12px;
    padding: 14px 10px;
    text-align: center;
    color: #eee;
    text-decoration: none;
    border: 1px solid #1f1f1f;
  }

  .mobile-browse-sheet .browse-card:hover {
    background: #1a1a1a;
  }
}

@media (max-width: 768px) {
  .mobile-bottom-nav .nav-item {
    background: none;
    border: none;
    padding: 0;
    appearance: none;
    -webkit-appearance: none;
  }

  .mobile-bottom-nav button.nav-item {
    cursor: pointer;
  }
}

@media (max-width: 768px) {

  .mobile-browse-overlay {
    font-size: 12px; /* base reset */
  }

  .mobile-browse-overlay .browse-title {
    font-size: 13px;
    margin-bottom: 12px;
  }

  .mobile-browse-overlay .browse-card p {
    font-size: 12px;
    line-height: 1.2;
    margin: 0;
  }

  .mobile-browse-overlay .browse-card {
    padding: 12px 8px;
  }
}

@media (max-width: 768px) {
  .mobile-profile img.mobile-avatar {
    width: 22px;
    height: 22px;
    border-radius: 50%;
    object-fit: cover;
    border: 1px solid rgba(255,255,255,0.25);
  }
}

.mobile-logout-btn {
  background: transparent;
  color: #ff4d4d;
  border: 1px solid rgba(255,255,255,0.25);
  border-radius: 8px;
  padding: 3px 9px;
  font-size: 11px;
  margin-left: 6px;
  margin-top: 10px;
}