.mobile-system-browser,
.mobile-nav-system-groups {
  display: none;
}

.card-processing-badge.status-processing {
  display: none !important;
}

@media (max-width: 768px) {
  .system-library.mobile-system-enhanced {
    width: 100%;
    padding-right: 12px !important;
    padding-left: 12px !important;
    box-sizing: border-box;
  }

  .system-library.mobile-system-enhanced .category-sidebar {
    display: none !important;
  }

  .system-library.mobile-system-enhanced.mobile-system-awaiting-category .sys-paper-list {
    display: none !important;
  }

  .system-library.mobile-system-enhanced.mobile-system-awaiting-category .library-total {
    display: none !important;
  }

  .mobile-system-browser {
    display: block;
    width: 100%;
    min-width: 0;
    margin: 0 0 16px;
    padding: 16px;
    box-sizing: border-box;
    border: 1px solid #dfe8dc;
    border-radius: 16px;
    background: rgba(255, 255, 255, 0.88);
    box-shadow: 0 5px 18px rgba(31, 67, 43, 0.06);
  }

  .mobile-system-browser-head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 14px;
  }

  .mobile-system-browser-head h2 {
    margin: 0;
    color: #183d28;
    font-size: 19px;
    line-height: 1.35;
  }

  .mobile-system-browser-head p {
    margin: 5px 0 0;
    color: #68766d;
    font-size: 12px;
    line-height: 1.55;
  }

  .mobile-system-back,
  .mobile-system-change {
    flex: 0 0 auto;
    min-height: 34px;
    padding: 6px 11px;
    border: 1px solid #cadbc8;
    border-radius: 10px;
    background: #f7faf4;
    color: #31543a;
    font-size: 12px;
    cursor: pointer;
  }

  .mobile-system-major-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 9px;
  }

  .mobile-system-major-card {
    display: flex;
    min-width: 0;
    min-height: 72px;
    padding: 12px;
    box-sizing: border-box;
    flex-direction: column;
    align-items: flex-start;
    justify-content: space-between;
    gap: 7px;
    border: 1px solid #dce8d9;
    border-radius: 13px;
    background: linear-gradient(145deg, #fbfdf9, #f0f6ec);
    color: #1d422b;
    text-align: left;
    cursor: pointer;
  }

  .mobile-system-major-card strong {
    max-width: 100%;
    font-size: 14px;
    line-height: 1.4;
  }

  .mobile-system-major-card span {
    color: #718076;
    font-size: 11px;
  }

  .mobile-system-subcategory-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
  }

  .mobile-system-subcategory {
    display: flex;
    width: 100%;
    min-height: 46px;
    padding: 10px 12px;
    box-sizing: border-box;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    border: 1px solid #dfe7da;
    border-radius: 12px;
    background: #fafbf7;
    color: #203e2b;
    font-size: 14px;
    font-weight: 600;
    text-align: left;
    cursor: pointer;
  }

  .mobile-system-subcategory span:last-child {
    flex: 0 0 auto;
    min-width: 44px;
    padding: 3px 8px;
    border-radius: 999px;
    background: #eaf3e7;
    color: #516b58;
    font-size: 11px;
    font-weight: 500;
    text-align: center;
  }

  .mobile-system-context {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
  }

  .mobile-system-context-path {
    min-width: 0;
    color: #6a776e;
    font-size: 12px;
    line-height: 1.5;
  }

  .mobile-system-context-path strong {
    display: block;
    overflow: hidden;
    color: #183d28;
    font-size: 16px;
    white-space: nowrap;
    text-overflow: ellipsis;
  }

  .system-library.mobile-system-enhanced .fine-tag-filter {
    overflow: hidden;
  }

  .system-library.mobile-system-enhanced .fine-tag-list {
    flex-wrap: nowrap;
    overflow-x: auto;
    padding-bottom: 5px;
    scrollbar-width: none;
  }

  .system-library.mobile-system-enhanced .fine-tag-list::-webkit-scrollbar {
    display: none;
  }

  .system-library.mobile-system-enhanced .fine-tag-filter-item {
    flex: 0 0 auto;
    white-space: nowrap;
  }

  .system-library .paper-actions {
    display: grid !important;
    grid-template-columns: repeat(6, minmax(0, 1fr));
    gap: 9px !important;
    align-items: stretch !important;
  }

  .system-library .paper-actions > .paper-source-link,
  .system-library .paper-actions > .paper-share-btn,
  .system-library .paper-actions > .sys-card-actions > .btn {
    width: 100%;
    min-width: 0;
    min-height: 40px;
    margin: 0 !important;
    padding: 7px 6px !important;
    box-sizing: border-box;
    align-items: center;
    justify-content: center;
    font-size: 13px !important;
    line-height: 1.25;
    text-align: center;
    white-space: nowrap;
  }

  .system-library .paper-actions > a[target="_blank"]:not([href*="scholar.google.com"]) {
    grid-column: 1 / 3;
    grid-row: 1;
  }

  .system-library .paper-actions > a[href*="scholar.google.com"] {
    grid-column: 3 / 5;
    grid-row: 1;
  }

  .system-library .paper-actions > .sys-card-actions {
    display: contents !important;
  }

  .system-library .paper-actions > .sys-card-actions > :nth-child(1) {
    grid-column: 1 / 3;
    grid-row: 2;
  }

  .system-library .paper-actions > .sys-card-actions > :nth-child(2) {
    grid-column: 5 / 7;
    grid-row: 1;
  }

  .system-library .paper-actions > .sys-card-actions > :nth-child(3) {
    grid-column: 3 / 5;
    grid-row: 2;
  }

  .system-library .paper-actions > .paper-share-btn {
    grid-column: 5 / 7;
    grid-row: 2;
  }

  .system-library .paper-actions > a[href*="edit=1"] {
    grid-column: 1 / 3;
    grid-row: 3;
  }

  .mobile-nav-system-trigger {
    position: relative;
    padding-right: 38px !important;
  }

  .mobile-nav-system-trigger::after {
    position: absolute;
    right: 15px;
    content: "›";
    font-size: 22px;
    line-height: 1;
    transform: rotate(90deg);
    transition: transform 160ms ease;
  }

  .mobile-nav-system-trigger[aria-expanded="true"]::after {
    transform: rotate(-90deg);
  }

  .mobile-nav-system-groups {
    display: none;
    margin: -2px 0 4px 12px;
    padding: 6px 0 6px 12px;
    border-left: 2px solid #d7e4d3;
  }

  .mobile-nav-system-groups.open {
    display: flex;
    flex-direction: column;
    gap: 3px;
  }

  .mobile-nav-system-group-link {
    display: flex;
    min-height: 38px;
    padding: 7px 10px;
    box-sizing: border-box;
    align-items: center;
    border-radius: 9px;
    color: #34523d;
    font-size: 13px;
    font-weight: 500;
    line-height: 1.35;
    text-decoration: none;
  }

  .mobile-nav-system-group-link:active,
  .mobile-nav-system-group-link.active {
    background: #e5eee3;
    color: #173c25;
  }
}

@media (max-width: 360px) {
  .mobile-system-major-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .system-library .paper-actions {
    gap: 7px !important;
  }

  .system-library .paper-actions > .paper-source-link,
  .system-library .paper-actions > .paper-share-btn,
  .system-library .paper-actions > .sys-card-actions > .btn {
    padding-right: 3px !important;
    padding-left: 3px !important;
    font-size: 12px !important;
  }
}