.tool-shell { display: grid; gap: 16px; margin-top: 16px; padding: 16px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); box-shadow: none; }
.tool-panel { display: grid; gap: 14px; }
.tool-columns { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 16px; align-items: start; }
.tool-input-area, .tool-output-area, .control-group, .result-panel { display: grid; gap: 8px; min-width: 0; }
.input-header, .output-header, .panel-header { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.input-label, .output-label, .control-label { font-weight: 850; }
.tool-textarea, .tool-input, .tool-select { width: 100%; border: 1px solid var(--line); border-radius: var(--radius); background: #fbfbf5; color: var(--text); }
.tool-textarea { min-height: 220px; resize: vertical; padding: 12px; line-height: 1.55; }
.tool-input, .tool-select { min-height: 42px; padding: 9px 10px; }
.output-readonly { background: #eef4e9; }
.tool-actions { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.btn-primary, .btn-secondary, .btn-icon, .btn-danger { min-height: 40px; padding: 8px 12px; border: 1px solid transparent; border-radius: 6px; font-weight: 800; }
.btn-primary { color: #fff; background: #2f776f; }
.btn-secondary, .btn-icon { border-color: var(--line); color: var(--text); background: #fbfbf5; }
.btn-danger { color: #fff; background: var(--danger); }
.btn-primary:hover, .btn-secondary:hover, .btn-icon:hover { filter: brightness(0.96); }
.stats-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 10px; }
.stat-card { min-height: 92px; padding: 14px; border: 1px solid var(--line); border-radius: var(--radius); background: #eff4ea; }
.stat-num { display: block; font-size: 1.55rem; font-weight: 950; line-height: 1.2; overflow-wrap: anywhere; }
.stat-label { display: block; color: var(--muted); font-size: 0.84rem; }
.result-panel { min-height: 120px; padding: 14px; border: 1px solid var(--line); border-radius: var(--radius); background: #eff4ea; overflow: auto; }
.tool-note { margin: 0; color: var(--muted); font-size: 0.88rem; }
.mini-table { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
.mini-table th, .mini-table td { padding: 8px; border-bottom: 1px solid var(--line); text-align: left; }
.og-card { display: grid; gap: 8px; max-width: 520px; }
.og-thumb { min-height: 120px; border: 1px solid var(--line); background: #dfe7da; overflow: hidden; }
.og-thumb img { width: 100%; height: 180px; object-fit: cover; display: block; }
.preview-box svg { max-width: 100%; height: auto; }
.result-list { display: grid; gap: 8px; margin: 0; padding: 0; list-style: none; }
.diff-line { padding: 6px 8px; border-radius: 4px; font-family: ui-monospace, SFMono-Regular, Consolas, monospace; white-space: pre-wrap; }
.diff-added { background: #dcfce7; }
.diff-removed { background: #fee2e2; }
.diff-same { background: #f1f5f9; color: var(--muted); }
.preview-box { min-height: 260px; padding: 16px; border: 1px solid var(--line); border-radius: var(--radius); background: #fbfbf5; overflow: auto; }
.color-swatch { width: 100%; min-height: 92px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--swatch, #0f766e); }
.palette { display: grid; grid-template-columns: repeat(5, 1fr); gap: 8px; }
.palette button { min-height: 92px; border: 1px solid var(--line); border-radius: var(--radius); color: #fff; font-weight: 900; text-shadow: 0 1px 2px rgba(0,0,0,.5); }
.drop-zone { display: grid; place-items: center; min-height: 150px; padding: 18px; border: 2px dashed #b8c4ad; border-radius: var(--radius); color: var(--muted); background: #eff4ea; text-align: center; }
.canvas-wrap { display: grid; place-items: center; min-height: 220px; border: 1px solid var(--line); border-radius: var(--radius); background: #eff4ea; overflow: auto; }
.canvas-wrap canvas { max-width: 100%; height: auto; }
.inline-controls { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 10px; }
.check-row { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; color: var(--muted); }
.check-row label { display: inline-flex; align-items: center; gap: 6px; }
@media (max-width: 820px) {
  .tool-shell { padding: 12px; }
  .tool-columns, .inline-controls { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .palette { grid-template-columns: repeat(2, 1fr); }
}