/* Tools (optional module) */
.tools-grid { display: grid; grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr); gap: 18px; align-items: start; }
.tools-side { display: flex; flex-direction: column; gap: 18px; min-width: 0; }
.tools-card { display: flex; flex-direction: column; gap: 12px; }
.tools-card p { margin: 0; }
.tools-head { display: flex; align-items: center; gap: 10px; }
.tools-head h2 { margin: 0; font-size: 18px; }
.tools-head .ic { width: 26px; height: 26px; }
.tools-drop { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 8px; min-height: 130px; border: 2px dashed #c3cbdc;
  border-radius: 14px; background: var(--surface-2); color: var(--muted); font: inherit; font-size: 14px; cursor: pointer; }
.tools-drop .ic { width: 34px; height: 34px; }
.tools-drop:hover, .tools-drop.over { border-color: var(--primary); color: var(--primary); background: #f3f6ff; }
.tools-file { display: flex; align-items: center; gap: 10px; padding: 10px 12px; border: 1px solid var(--border); border-radius: 10px; }
.tools-file-in { flex: 1; display: flex; align-items: center; gap: 8px; min-width: 0; }
.tools-file-in b { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.tools-opts { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.tools-opt { align-items: flex-start; margin-top: 6px; }
.tools-opt > span { display: flex; flex-direction: column; }
.tools-actions { display: flex; gap: 10px; }
.tools-go { min-width: 200px; justify-content: center; }
.tools-result { padding: 10px 12px; border-radius: 10px; background: #e3f5ea; color: #1f7a45; font-weight: 600; }
.tools-rules summary { cursor: pointer; color: var(--muted); font-size: 13px; }
.tools-rules ul { margin: 8px 0 0; padding-left: 18px; display: grid; gap: 6px; color: var(--muted); }
.tools-scale { display: grid; gap: 8px; }
.tools-scale-row { display: grid; grid-template-columns: 1fr 1fr 34px; gap: 8px; align-items: center; }
.tools-scale-head { font-size: 11px; font-weight: 700; color: var(--muted); text-transform: uppercase; letter-spacing: .05em; }
.tools-scale .btn { justify-self: start; }
@media (max-width: 900px) { .tools-grid, .tools-opts { grid-template-columns: minmax(0, 1fr); } }