/* Mingmist Tools v1.2 — document work surfaces */
.v12-workspace {
  display: grid;
  grid-template-columns: minmax(300px, .82fr) minmax(360px, 1.18fr);
  gap: 1px;
  border: 1px solid var(--border);
  background: var(--border);
}
.v12-controls,
.v12-preview-column {
  min-width: 0;
  padding: 24px;
  background: var(--surface);
}
.v12-preview-column { background: var(--surface-2); }
.v12-inline-result {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 10px;
  margin-top: 14px;
  color: var(--muted);
}
.v12-inline-result strong { color: var(--text); }
.preview-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
  font-size: .9rem;
  font-weight: 700;
}
.preview-toolbar input,
.preview-toolbar select {
  width: min(150px, 45%);
  min-height: 38px;
  padding: 6px 9px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
}
.pdf-preview-stage {
  position: relative;
  width: fit-content;
  max-width: 100%;
  margin: 0 auto;
  line-height: 0;
  border: 1px solid var(--border);
  background: #fff;
  box-shadow: 0 12px 28px rgba(11, 22, 40, .1);
  overflow: hidden;
}
.pdf-preview-stage canvas { max-width: 100%; height: auto; }
.crop-presets {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  margin: 18px 0 12px;
}
.crop-presets > span { margin-right: 4px; color: var(--muted); font-size: .88rem; font-weight: 700; }
.crop-margin-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.crop-preview-overlay {
  position: absolute;
  display: none;
  border: 2px dashed var(--mist-teal, #1b4f4d);
  background: color-mix(in srgb, #1b4f4d 8%, transparent);
  box-shadow: 0 0 0 9999px rgba(0, 0, 0, .28);
  pointer-events: none;
}

.v12-compare-source {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  align-items: center;
  gap: 14px;
}
.compare-arrow { color: var(--muted); font-size: 1.4rem; }
.v12-compare-actions {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 18px;
  margin: 18px 0 10px;
}
.v12-compare-actions > div:first-child { display: grid; gap: 10px; min-width: 0; }
.threshold-control {
  display: grid;
  grid-template-columns: auto minmax(150px, 260px);
  align-items: center;
  gap: 12px;
  color: var(--muted);
  font-size: .86rem;
}
.v12-comparison-layout {
  display: grid;
  grid-template-columns: minmax(280px, .72fr) minmax(420px, 1.28fr);
  gap: 20px;
  margin-top: 22px;
  align-items: start;
}
.v12-comparison-layout .result-table-wrap { margin-top: 0; max-height: 640px; }
#compare-summary-body tr { cursor: pointer; }
#compare-summary-body tr:hover,
#compare-summary-body tr.selected { background: color-mix(in srgb, #1b4f4d 9%, var(--surface)); }
.comparison-state {
  display: inline-block;
  padding: 3px 7px;
  border: 1px solid var(--border);
  font-size: .78rem;
  font-weight: 800;
}
.comparison-state.same { color: var(--success); border-color: color-mix(in srgb, var(--success) 35%, var(--border)); }
.comparison-state.changed,
.comparison-state.missing { color: var(--danger); border-color: color-mix(in srgb, var(--danger) 35%, var(--border)); }
.compare-visual-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.compare-visual-grid figure { min-width: 0; margin: 0; padding: 10px; border: 1px solid var(--border); background: var(--surface); }
.compare-visual-grid figure.difference { grid-column: 1 / -1; }
.compare-visual-grid figcaption { margin-bottom: 8px; color: var(--muted); font-size: .82rem; font-weight: 750; }
.compare-visual-grid canvas { width: 100%; height: auto; border: 1px solid var(--border); background: #fff; }
.pdf-text-diff {
  max-height: 680px;
  overflow: auto;
  border: 1px solid var(--border);
  background: var(--surface);
}
.pdf-text-diff-row {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  min-height: 31px;
  border-bottom: 1px solid var(--border);
}
.pdf-text-diff-row:last-child { border-bottom: 0; }
.pdf-text-diff-row > span { display: grid; place-items: center; color: var(--muted); background: var(--surface-2); font-weight: 800; }
.pdf-text-diff-row code { padding: 5px 9px; white-space: pre-wrap; overflow-wrap: anywhere; }
.pdf-text-diff-row.add { background: color-mix(in srgb, var(--success-soft) 60%, var(--surface)); }
.pdf-text-diff-row.remove { background: color-mix(in srgb, var(--danger-soft) 60%, var(--surface)); }

.signature-source-tabs {
  display: grid;
  gap: 18px;
  margin: 18px 0;
}
.signature-source-tabs > div:first-child { display: grid; gap: 8px; }
#signature-pad {
  width: 100%;
  max-height: 180px;
  border: 1px solid var(--border);
  background:
    linear-gradient(transparent calc(100% - 38px), color-mix(in srgb, var(--archive-silver, #aab7c4) 55%, transparent) calc(100% - 38px), color-mix(in srgb, var(--archive-silver, #aab7c4) 55%, transparent) calc(100% - 37px), transparent calc(100% - 37px)),
    #fff;
  touch-action: none;
}
.sign-preview-overlay {
  position: absolute;
  cursor: move;
  touch-action: none;
  border: 1px dashed #1b4f4d;
  background: rgba(255,255,255,.25);
}
.sign-workspace .control-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }

.v12-form-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 18px;
}
.v12-form-head .dropzone { flex: 1 1 auto; }
.form-json-actions { display: flex; flex-wrap: wrap; gap: 8px; }
.pdf-form-field-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin: 20px 0;
}
.pdf-form-field {
  min-width: 0;
  padding: 16px;
  border: 1px solid var(--border);
  background: var(--surface);
}
.pdf-form-field > label:first-child {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 8px;
  font-weight: 750;
}
.pdf-form-field > label small { color: var(--muted); font-family: var(--mono); font-size: .68rem; font-weight: 500; }
.pdf-form-field textarea { min-height: 110px; }
.pdf-form-field select { width: 100%; min-height: 44px; padding: 8px 10px; border: 1px solid var(--border); background: var(--bg); color: var(--text); }
.pdf-form-field.unsupported { opacity: .78; }
.v12-form-footer { display: flex; align-items: center; justify-content: space-between; gap: 18px; padding-top: 16px; border-top: 1px solid var(--border); }

.preflight-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 18px;
  align-items: end;
}
.preflight-actions { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 8px; }
.preflight-summary { margin-top: 22px; }
.preflight-overall {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 4px 14px;
  padding: 18px;
  border: 1px solid var(--border);
  border-left: 4px solid var(--success);
  background: var(--surface);
}
.preflight-overall.review { border-left-color: var(--warning); }
.preflight-overall.fail { border-left-color: var(--danger); }
.preflight-overall > span { grid-row: 1 / span 2; align-self: center; padding: 5px 8px; border: 1px solid currentColor; color: var(--success); font-size: .78rem; font-weight: 850; }
.preflight-overall.review > span { color: var(--warning); }
.preflight-overall.fail > span { color: var(--danger); }
.preflight-overall strong { font-size: 1.05rem; overflow-wrap: anywhere; }
.preflight-overall p { margin: 0; color: var(--muted); font-size: .86rem; }
.preflight-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1px; margin-top: 1px; background: var(--border); }
.preflight-card { min-width: 0; padding: 15px; background: var(--surface); }
.preflight-card > span { color: var(--success); font-size: .72rem; font-weight: 850; text-transform: uppercase; letter-spacing: .06em; }
.preflight-card.review > span { color: var(--warning); }
.preflight-card.fail > span { color: var(--danger); }
.preflight-card strong { display: block; margin-top: 5px; }
.preflight-card p { margin: 5px 0 0; color: var(--muted); font-size: .84rem; overflow-wrap: anywhere; }
.page-flags { color: var(--warning); font-weight: 700; }
.empty-note { padding: 24px; color: var(--muted); text-align: center; }

@media (max-width: 980px) {
  .v12-workspace,
  .v12-comparison-layout { grid-template-columns: 1fr; }
  .preflight-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 700px) {
  .v12-controls,
  .v12-preview-column { padding: 16px; }
  .v12-compare-source { grid-template-columns: 1fr; }
  .compare-arrow { transform: rotate(90deg); justify-self: center; }
  .v12-compare-actions,
  .v12-form-head,
  .v12-form-footer { align-items: stretch; flex-direction: column; display: flex; }
  .v12-compare-actions .actions,
  .form-json-actions { width: 100%; }
  .v12-compare-actions .button,
  .form-json-actions .button { flex: 1 1 auto; }
  .compare-visual-grid { grid-template-columns: 1fr; }
  .compare-visual-grid figure.difference { grid-column: auto; }
  .pdf-form-field-list,
  .preflight-head,
  .preflight-grid,
  .sign-workspace .control-grid,
  .crop-margin-grid { grid-template-columns: 1fr; }
  .preflight-actions { justify-content: stretch; }
  .preflight-actions > * { width: 100%; }
}