.tool-app { border: 1px solid var(--line); border-radius: var(--radius-card); background: var(--panel); overflow: hidden; }
.tool-app-head { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 10px; padding: 14px 18px; border-bottom: 1px solid var(--line); background: var(--gradient-ad); }
.tool-app-head strong { font-size: 1.05rem; }
.tool-app-head span { color: var(--muted); font-size: .86rem; }
.tool-mount { padding: 15px; }
.tool-form { display: grid; gap: 12px; }
.tool-fields { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.tool-field { display: grid; gap: 5px; }
.tool-field > span { color: var(--muted); font-size: .86rem; font-weight: 700; }
.tool-choice { display: grid; gap: 7px; }
.tool-choice > span { color: var(--muted); font-size: .86rem; font-weight: 700; }
.choice-group { display: flex; flex-wrap: wrap; gap: 8px; }
.choice-button { min-height: 40px; padding: 8px 12px; border: 1px solid var(--line); border-radius: 5px; background: var(--panel); color: var(--ink); font: inherit; font-size: .92rem; cursor: pointer; }
.choice-button:hover, .choice-button.active { border-color: var(--green); background: var(--green-soft); color: var(--green); }
.choice-button.active::before { content: "✓"; margin-right: 5px; font-weight: 800; }
.tool-field input, .tool-field select, .tool-field textarea, .tool-input, .tool-output { width: 100%; min-width: 0; padding: 10px 12px; border: 1px solid var(--line); border-radius: 5px; background: #fbfcfc; color: var(--ink); font: inherit; }
.tool-field textarea, .tool-input, .tool-output { min-height: 180px; resize: vertical; }
.tool-output { white-space: pre-wrap; overflow-wrap: anywhere; }
.tool-actions { display: flex; flex-wrap: wrap; gap: 9px; align-items: center; }
.tool-status { color: var(--muted); font-size: .9rem; }
.tool-status.ok { color: var(--green); }
.tool-status.error { color: var(--red); }
.tool-result { display: grid; gap: 8px; margin-top: 14px; }
.tool-result h2 { margin: 0; font-size: 1.1rem; }
.tool-help { margin: 0; color: var(--muted); font-size: .9rem; }
.tool-file { padding: 14px; border: 1px dashed #9db3d4; border-radius: 7px; background: #f7faff; }
.tool-canvas { display: block; max-width: 100%; height: auto; margin-top: 12px; border: 1px solid var(--line); background: #fff; }
.tool-table { width: 100%; border-collapse: collapse; }
.tool-table th, .tool-table td { padding: 8px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
.tool-table th { color: var(--muted); font-size: .86rem; }
.tool-code { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: .9rem; }
.tool-qr { display: grid; place-items: center; min-height: 220px; padding: 18px; background: #fff; }
.tool-preview { display: grid; gap: 10px; margin-top: 14px; padding: 14px; border: 1px solid var(--line); border-radius: 10px; background: var(--gradient-feature); }
.tool-preview-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.tool-preview-head strong { font-size: .95rem; }
.tool-document-preview { width: 100%; min-height: 560px; border: 1px solid var(--line); background: #fff; }
.tool-media-preview { display: block; max-width: 100%; max-height: 620px; width: auto; height: auto; border: 1px solid var(--line); background: #fff; }
.tool-note { margin-top: 14px; }
.tool-note p { margin: 6px 0 0; color: var(--muted); }
button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible { outline: 3px solid #8ab8df; outline-offset: 2px; }
@media (max-width: 680px) {
  .tool-fields { grid-template-columns: 1fr; }
  .tool-mount { padding: 14px; }
  .tool-actions .button, .tool-actions button { flex: 1 1 auto; justify-content: center; }
  .choice-group { width: 100%; }
  .choice-button { flex: 1 1 auto; min-width: 0; }
  .tool-preview-head { align-items: stretch; flex-direction: column; }
  .tool-preview-head .button { width: 100%; justify-content: center; }
  .tool-document-preview { min-height: 420px; }
}