.tool-page-content {
  display: block;
  background:
    radial-gradient(circle at 50% -10%, rgba(148, 163, 184, .12), transparent 34%),
    var(--wb-bg, #f8fafc);
}

.tool-page-stage {
  width: min(680px, 100%);
  margin: 0 auto;
  padding: clamp(18px, 4vw, 42px) 0 72px;
}

.tool-page-stage [hidden] { display: none !important; }

.tool-page-hero {
  margin-bottom: 22px;
  text-align: center;
}

.tool-page-hero h1 {
  margin: 0;
  color: #172033;
  font-size: clamp(28px, 5vw, 40px);
  font-weight: 720;
  letter-spacing: -.045em;
  line-height: 1.15;
}

.tool-page-hero p {
  margin: 10px 0 0;
  color: #64748b;
  font-size: 13px;
  line-height: 1.6;
}

.tool-page-card {
  box-sizing: border-box;
  border: 1px solid var(--wb-card-border, #e5e7eb);
  border-radius: 18px;
  background: var(--wb-panel, #fff);
  box-shadow: 0 18px 50px rgba(15, 23, 42, .07);
}

.tool-page-status {
  min-height: 1.35em;
  color: #64748b;
  font-size: 12px;
}

.tool-page-status.error { color: #dc2626; }

.tool-page-footnote {
  margin: 14px 0 0;
  color: #94a3b8;
  font-size: 11px;
  text-align: center;
}

.tool-page-content :is(input, textarea, button, [tabindex]):focus-visible {
  outline: 2px solid #64748b;
  outline-offset: 3px;
}

.tool-page-content :is(wb-button, wb-select):focus-visible {
  border-radius: 10px;
  outline: 2px solid #64748b;
  outline-offset: 3px;
}

.tool-page-content [aria-busy="true"] { cursor: wait; }

.tool-page-content [aria-invalid="true"] {
  border-color: #dc2626;
}

.tool-page-content label:has(> input[type="file"][aria-invalid="true"]) {
  border-color: #dc2626;
}

@media (max-width: 720px) {
  .tool-page-content { padding: 18px; }
  .tool-page-stage { padding-top: 16px; }
}

@media (max-width: 520px) {
  .tool-page-hero { text-align: left; }
}