/* split pane toolbox layout */

#toolbox-container {
  height: 100%;
  flex: 1 1 auto;
  min-height: 0;
  display: flex;
  flex-direction: row;
  overflow: hidden;
}

#tool-sidebar {
  width: 234px;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  border-right: 1px solid var(--hairline);
  background: var(--panel-strong);
}

.tool-search-wrap {
  padding: 10px 12px 6px;
}

.tool-search {
  width: 100%;
  box-sizing: border-box;
  padding: 8px 12px 8px 32px;
  border: none;
  outline: none;
  border-radius: var(--r-control);
  background: rgba(255, 255, 255, 0.07) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%23999' stroke-width='2.5' stroke-linecap='round'%3E%3Ccircle cx='11' cy='11' r='7'/%3E%3Cpath d='M21 21l-4.3-4.3'/%3E%3C/svg%3E") no-repeat 10px center;
  color: var(--text);
  font-size: 0.85em;
}

.tool-search:focus {
  background-color: rgba(255, 255, 255, 0.12);
  box-shadow: var(--focus-ring);
}

.tool-search::placeholder {
  color: rgba(255, 255, 255, 0.35);
}

#tool-nav {
  flex: 1 1 auto;
  overflow-y: auto;
  padding: 4px 8px 14px;
  scrollbar-width: thin;
  scrollbar-color: rgba(255, 255, 255, 0.15) transparent;
}

#tool-nav::-webkit-scrollbar {
  width: 6px;
}

#tool-nav::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.15);
  border-radius: 3px;
}

.tool-cat {
  font-size: 0.64em;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--text-secondary);
  padding: 14px 10px 6px;
}

.tool-link {
  display: flex;
  align-items: center;
  gap: 11px;
  width: 100%;
  text-align: left;
  background: transparent;
  border: none;
  color: var(--text);
  padding: 8px 10px;
  border-radius: 9px;
  font-size: 0.86em;
  font-weight: 500;
  letter-spacing: -0.01em;
  cursor: pointer;
  transition: background 0.15s ease;
}

.tool-link i {
  width: 18px;
  text-align: center;
  color: var(--text-secondary);
  font-size: 0.95em;
  transition: color 0.15s ease;
}

.tool-link:hover {
  background: rgba(255, 255, 255, 0.07);
}

.tool-link.active {
  background: var(--accent);
  color: #fff;
}

.tool-link.active i {
  color: #fff;
}

.tool-empty {
  color: var(--text-secondary);
  font-size: 0.82em;
  padding: 16px 12px;
}

#tool-detail {
  flex: 1 1 auto;
  min-width: 0;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: rgba(255, 255, 255, 0.15) transparent;
}

#tool-detail::-webkit-scrollbar {
  width: 6px;
}

#tool-detail::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.15);
  border-radius: 3px;
}

.tabcontent {
  display: none;
  padding: 24px 32px 40px;
  max-width: 720px;
  box-sizing: border-box;
}

.tabcontent h2 {
  margin: 0 0 16px;
  font-size: 1.35em;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.tabcontent h3 {
  margin: 22px 0 10px;
  font-size: 0.95em;
  font-weight: 600;
  color: var(--text);
}

.tool-back-btn {
  display: none;
  align-items: center;
  gap: 8px;
  background: none;
  border: none;
  color: var(--accent);
  font-size: 0.88em;
  font-weight: 600;
  padding: 6px 0 12px;
  cursor: pointer;
}

.tabcontent input[type="text"],
.tabcontent input[type="number"],
.tabcontent textarea {
  width: 100%;
  box-sizing: border-box;
  padding: 10px 12px;
  background-color: var(--panel-strong);
  border: 1px solid var(--hairline);
  color: var(--text);
  border-radius: var(--r-control);
  font-family: inherit;
  font-size: 0.88em;
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.tabcontent input[type="text"]:focus,
.tabcontent input[type="number"]:focus,
.tabcontent textarea:focus {
  border-color: var(--accent);
  box-shadow: var(--focus-ring);
}

.tabcontent textarea {
  resize: vertical;
  min-height: 80px;
}

.tabcontent button {
  background-color: var(--accent);
  color: #fff;
  border: none;
  border-radius: var(--r-control);
  padding: 9px 16px;
  font-size: 0.85em;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.15s, transform 0.15s;
}

.tabcontent button:hover {
  background-color: var(--accent-press);
}

.tabcontent button:active {
  transform: scale(0.98);
}

.tool-btn-row {
  display: flex;
  gap: 8px;
  margin-top: 10px;
}

.tabcontent select {
  box-sizing: border-box;
  padding: 9px 28px 9px 12px;
  background-color: var(--panel-strong);
  border: 1px solid var(--hairline);
  color: var(--text);
  border-radius: var(--r-control);
  font-family: inherit;
  font-size: 0.85em;
  outline: none;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23999' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
  cursor: pointer;
}

.tabcontent select:focus {
  border-color: var(--accent);
  box-shadow: var(--focus-ring);
}

.tool-output {
  margin-top: 14px;
  padding: 12px 14px;
  background-color: var(--panel-strong);
  border: 1px solid var(--hairline);
  border-radius: var(--r-control);
  font-family: ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
  font-size: 0.86em;
  color: var(--text);
  word-break: break-all;
  white-space: pre-wrap;
  min-height: 20px;
}

.tool-output:empty {
  display: none;
}

.counter-output {
  display: flex;
  gap: 18px;
  margin-top: 12px;
  font-size: 0.85em;
  color: var(--text-secondary);
  flex-wrap: wrap;
}

.counter-output span {
  font-weight: 600;
  color: var(--accent);
}

.field-row {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.field-row > div {
  flex: 1;
  min-width: 130px;
}

.field-label {
  display: block;
  font-size: 0.76em;
  color: var(--text-secondary);
  margin: 0 2px 6px;
}

.result-grid {
  display: grid;
  grid-template-columns: max-content 1fr;
  gap: 9px 16px;
  margin-top: 18px;
  align-items: baseline;
}

.result-grid:empty {
  margin-top: 0;
}

.result-grid .k {
  color: var(--text-secondary);
  font-size: 0.85em;
}

.result-grid .v {
  font-family: ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
  color: var(--text);
  word-break: break-all;
}

.ascii-table {
  width: 100%;
  border-collapse: collapse;
  font-family: ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
  font-size: 0.82em;
}

.ascii-table th,
.ascii-table td {
  padding: 5px 10px;
  text-align: left;
  border-bottom: 1px solid var(--hairline);
}

.ascii-table th {
  color: var(--text-secondary);
  font-weight: 600;
  position: sticky;
  top: 0;
  background: var(--panel-strong);
}

.ascii-table td:first-child,
.ascii-table td:nth-child(2) {
  color: var(--accent);
}

.resistor-bands {
  display: flex;
  gap: 7px;
  align-items: center;
  margin: 16px 0 4px;
  padding: 14px 18px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--hairline);
  border-radius: var(--r-control);
  width: fit-content;
}

.resistor-bands .band {
  width: 14px;
  height: 46px;
  border-radius: 2px;
  box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.35);
}

@media (max-width: 860px) {
  #tool-sidebar {
    width: 100%;
    border-right: none;
  }

  #tool-detail {
    display: none;
  }

  #toolbox-container.show-detail #tool-sidebar {
    display: none;
  }

  #toolbox-container.show-detail #tool-detail {
    display: block;
  }

  #tool-back {
    display: flex;
  }

  .tabcontent {
    padding: 8px 18px 24px;
    max-width: none;
  }

  .tabcontent h2 {
    font-size: 1.2em;
  }
}