body {
  margin: 0;
  background: #e9e9e9;
  color: #111;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 15px;
}

.page {
  max-width: 1050px;
  margin: 0 auto;
  background: #fff;
  min-height: 100vh;
  border-left: 1px solid #bbb;
  border-right: 1px solid #bbb;
}

header {
  padding: 22px 28px;
  border-bottom: 3px solid #333;
  background: #f7f7f7;
}

h1 {
  margin: 0 0 8px;
  font-size: 30px;
  font-weight: bold;
}

header p {
  margin: 0 0 14px;
  color: #444;
}

.top-links {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

a,
button {
  font: inherit;
}

a {
  color: #0645ad;
}

button,
.button-link {
  border: 1px solid #777;
  background: #eee;
  color: #111;
  padding: 7px 12px;
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
}

button:hover,
.button-link:hover {
  background: #ddd;
}

.tabs {
  padding: 12px 28px;
  border-bottom: 1px solid #ccc;
  background: #fafafa;
}

.tab {
  margin-right: 6px;
}

.tab.active {
  background: #333;
  color: white;
  border-color: #333;
}

.search-row {
  padding: 14px 28px;
  border-bottom: 1px solid #ccc;
  display: flex;
  gap: 8px;
  align-items: center;
}

.search-row input {
  width: 100%;
  max-width: 460px;
}

input,
textarea,
select {
  font: inherit;
  padding: 7px;
  border: 1px solid #999;
  background: white;
}

textarea {
  resize: vertical;
}

.hidden {
  display: none;
}

.admin-panel {
  margin: 18px 28px;
  border: 2px solid #555;
  padding: 16px;
  background: #f4f4f4;
}

.admin-panel h2 {
  margin-top: 0;
}

.note {
  background: #fffbe6;
  border: 1px solid #d6c56e;
  padding: 9px;
}

.editor-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin: 10px 0;
}

.box {
  border: 1px solid #aaa;
  background: white;
  padding: 14px;
  margin-top: 14px;
}

.box h3 {
  margin-top: 0;
  border-bottom: 1px solid #ccc;
  padding-bottom: 6px;
}

label {
  display: block;
  margin: 0 0 11px;
  font-weight: bold;
}

label input,
label textarea,
label select {
  display: block;
  width: 100%;
  margin-top: 4px;
  box-sizing: border-box;
  font-weight: normal;
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

#content {
  padding: 12px 28px 30px;
}

.subcategory {
  margin: 20px 0 28px;
}

.subcategory-header {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
  border-bottom: 2px solid #333;
  padding-bottom: 6px;
}

.subcategory-title {
  margin: 0;
  font-size: 22px;
}

.subcategory-count {
  color: #555;
  font-size: 13px;
}

.download-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 10px;
}

.download-table th,
.download-table td {
  border: 1px solid #bbb;
  padding: 9px;
  vertical-align: top;
  text-align: left;
}

.download-table th {
  background: #efefef;
}

.download-table tr:nth-child(even) {
  background: #fafafa;
}

.tool-name {
  font-weight: bold;
}

.meta {
  color: #555;
  font-size: 13px;
  margin-top: 3px;
}

.desc {
  color: #333;
  line-height: 1.35;
}

.actions {
  white-space: nowrap;
}

.actions a,
.actions button {
  margin: 2px;
}

.edit-actions {
  display: none;
  margin-top: 5px;
}

body.admin-mode .edit-actions {
  display: block;
}

.empty {
  border: 1px dashed #999;
  color: #555;
  padding: 16px;
  margin-top: 10px;
  background: #fafafa;
}

@media (max-width: 720px) {
  .page {
    border: 0;
  }

  header,
  .tabs,
  .search-row,
  #content {
    padding-left: 14px;
    padding-right: 14px;
  }

  .admin-panel {
    margin-left: 14px;
    margin-right: 14px;
  }

  .form-grid {
    grid-template-columns: 1fr;
  }

  .download-table,
  .download-table thead,
  .download-table tbody,
  .download-table th,
  .download-table td,
  .download-table tr {
    display: block;
  }

  .download-table thead {
    display: none;
  }

  .download-table tr {
    border: 1px solid #bbb;
    margin-bottom: 10px;
  }

  .download-table td {
    border: 0;
    border-bottom: 1px solid #ddd;
  }

  .actions {
    white-space: normal;
  }
}