.tool-box{
  --bg: #eef1fb; --panel: #ffffff; --panel-2: #dfe3f7; --line: #c2c9f0;
  --accent: #4338ca; --accent-soft: #dfe3f7; --accent-dim: #eef0fc;
  --text: #1e1a4a; --muted: #5f5c8f; --muted-2: #9a97c9;
}

.tool-box .fields{ display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 16px; }
.tool-box .field label{ display: block; font-size: 12px; font-weight: 600; color: var(--muted); margin-bottom: 6px; }
.tool-box .field input{ width: 100%; padding: 10px 12px; border: 1px solid var(--line); border-radius: 8px 8px 0 0; font-size: 14px; background: var(--panel); color: var(--text); box-sizing: border-box; border-bottom: none; }
.tool-box .field select{ width: 100%; padding: 10px 12px; border: 1px solid var(--line); border-radius: 0 0 8px 8px; font-size: 13px; background: var(--panel-2); color: var(--text); box-sizing: border-box; }
.tool-box .field input:focus, .tool-box .field select:focus{ outline: none; border-color: var(--accent); }
.tool-box .field input[readonly]{ background: var(--accent-dim); font-weight: 700; color: var(--accent); font-family: 'JetBrains Mono', monospace; }