[data-tool-root="random-number-generator"],
[data-tool-root="random-number-generator"] *,
[data-tool-root="random-number-generator"] *::before,
[data-tool-root="random-number-generator"] *::after { box-sizing: border-box; }

[data-tool-root="random-number-generator"] {
  --rng-gray-50: #fbfbfb;
  --rng-gray-100: #f7f7f7;
  --rng-gray-150: #f2f2f2;
  --rng-gray-200: #eeeeee;
  --rng-gray-300: #dddddd;
  --rng-gray-400: #bbbbbb;
  --rng-gray-600: #666666;
  --rng-gray-700: #444444;
  --rng-gray-800: #222222;
  --rng-gray-900: #111111;
  --rng-danger: #a12424;
  --rng-success: #276749;
  --rng-radius: 6px;
  width: 100%;
  color: var(--rng-gray-900);
  font: 15px/1.6 "Noto Sans", "Noto Sans SC", system-ui, -apple-system, "Segoe UI", sans-serif;
}

[data-tool-root="random-number-generator"] .tool-page-header {
  padding: 24px 0 16px;
  border-bottom: 1px solid var(--rng-gray-300);
}
[data-tool-root="random-number-generator"] .tool-page-header h1 {
  margin: 0;
  font-size: 30px;
  line-height: 1.2;
  letter-spacing: -0.5px;
}
[data-tool-root="random-number-generator"] .page-description { margin: 4px 0 0; color: var(--rng-gray-600); max-width: 78ch; }
[data-tool-root="random-number-generator"] .rng-workspace { margin-top: 16px; }
[data-tool-root="random-number-generator"] .rng-workspace-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.08fr);
  align-items: stretch;
  gap: 16px;
}
[data-tool-root="random-number-generator"] .rng-panel {
  min-width: 0;
  padding: 20px 24px;
  background: var(--rng-gray-150);
  border: 1px solid var(--rng-gray-300);
  border-radius: var(--rng-radius);
}
[data-tool-root="random-number-generator"] .rng-form { display: flex; flex-direction: column; gap: 16px; height: 100%; }
[data-tool-root="random-number-generator"] .rng-field { min-width: 0; }
[data-tool-root="random-number-generator"] .rng-field-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
[data-tool-root="random-number-generator"] .rng-label { display: block; margin-bottom: 4px; color: var(--rng-gray-700); font-size: 13px; font-weight: 700; }
[data-tool-root="random-number-generator"] .rng-input,
[data-tool-root="random-number-generator"] .rng-select {
  width: 100%;
  min-height: 44px;
  padding: 0 12px;
  background: #fff;
  border: 1px solid var(--rng-gray-300);
  border-radius: var(--rng-radius);
  color: var(--rng-gray-900);
  font: inherit;
  font-variant-numeric: tabular-nums;
}
[data-tool-root="random-number-generator"] .rng-input:focus,
[data-tool-root="random-number-generator"] .rng-select:focus { border-color: var(--rng-gray-800); }
[data-tool-root="random-number-generator"] :focus-visible { outline: 2px solid var(--rng-gray-900); outline-offset: 2px; }
[data-tool-root="random-number-generator"] .rng-input[aria-invalid="true"] { border-color: var(--rng-danger); }
[data-tool-root="random-number-generator"] .rng-help { margin: 4px 0 0; color: var(--rng-gray-600); font-size: 13px; }
[data-tool-root="random-number-generator"] .rng-error { margin: 4px 0 0; color: var(--rng-danger); font-size: 13px; }
[data-tool-root="random-number-generator"] .rng-segmented {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 2px;
  padding: 3px;
  background: var(--rng-gray-200);
  border: 1px solid var(--rng-gray-300);
  border-radius: var(--rng-radius);
}
[data-tool-root="random-number-generator"] .rng-segmented-item {
  min-height: 44px;
  padding: 0 14px;
  background: transparent;
  border: 0;
  border-radius: 4px;
  color: var(--rng-gray-900);
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}
[data-tool-root="random-number-generator"] .rng-segmented-item.is-active { background: var(--rng-gray-900); color: #fff; }
[data-tool-root="random-number-generator"] .rng-options-row {
  display: grid;
  grid-template-columns: minmax(180px, .8fr) minmax(0, 1.2fr);
  align-items: end;
  gap: 12px;
}
[data-tool-root="random-number-generator"] .rng-check {
  display: flex;
  align-items: center;
  min-height: 44px;
  gap: 10px;
  padding: 0 12px;
  background: #fff;
  border: 1px solid var(--rng-gray-300);
  border-radius: var(--rng-radius);
  color: var(--rng-gray-700);
  font-weight: 700;
  cursor: pointer;
}
[data-tool-root="random-number-generator"] .rng-check input { width: 18px; height: 18px; accent-color: var(--rng-gray-900); }
[data-tool-root="random-number-generator"] .rng-actions { display: grid; grid-template-columns: 1fr auto; gap: 8px; margin-top: auto; }
[data-tool-root="random-number-generator"] .rng-btn,
[data-tool-root="random-number-generator"] .rng-chip {
  min-height: 44px;
  padding: 0 16px;
  background: #fff;
  border: 1px solid var(--rng-gray-300);
  border-radius: var(--rng-radius);
  color: var(--rng-gray-900);
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}
[data-tool-root="random-number-generator"] .rng-btn:hover,
[data-tool-root="random-number-generator"] .rng-chip:hover { background: var(--rng-gray-200); border-color: var(--rng-gray-400); }
[data-tool-root="random-number-generator"] .rng-btn-primary { background: var(--rng-gray-900); border-color: var(--rng-gray-900); color: #fff; }
[data-tool-root="random-number-generator"] .rng-btn-primary:hover { background: var(--rng-gray-800); }
[data-tool-root="random-number-generator"] .rng-btn:disabled { background: var(--rng-gray-200); color: #999; cursor: not-allowed; border-color: var(--rng-gray-300); }
[data-tool-root="random-number-generator"] .rng-chip { width: fit-content; max-width: 100%; border-radius: 999px; font-size: 13px; white-space: normal; text-align: left; }
[data-tool-root="random-number-generator"] .rng-form-status { min-height: 24px; color: var(--rng-gray-600); }
[data-tool-root="random-number-generator"] .rng-result-panel { display: flex; }
[data-tool-root="random-number-generator"] .rng-result-summary {
  display: flex;
  flex: 1;
  flex-direction: column;
  min-width: 0;
  padding: 20px;
  background: #fff;
  border: 1px solid var(--rng-gray-300);
  border-radius: var(--rng-radius);
}
[data-tool-root="random-number-generator"] .rng-result-header { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
[data-tool-root="random-number-generator"] .rng-result-eyebrow { color: var(--rng-gray-600); font-size: 13px; font-weight: 700; text-transform: uppercase; letter-spacing: .08em; }
[data-tool-root="random-number-generator"] .rng-result-badge { display: inline-flex; align-items: center; min-height: 28px; padding: 2px 10px; border: 1px solid var(--rng-gray-300); border-radius: 999px; font-size: 13px; font-weight: 700; }
[data-tool-root="random-number-generator"] .rng-result-badge[data-state="success"] { border-color: var(--rng-success); color: var(--rng-success); }
[data-tool-root="random-number-generator"] .rng-result-badge[data-state="error"] { border-color: var(--rng-danger); color: var(--rng-danger); }
[data-tool-root="random-number-generator"] .rng-result-primary { padding: 18px 0 8px; }
[data-tool-root="random-number-generator"] .rng-result-primary-label { display: block; color: var(--rng-gray-600); }
[data-tool-root="random-number-generator"] .rng-result-primary-value { display: block; max-width: 100%; overflow-wrap: anywhere; font-size: clamp(42px, 6vw, 64px); line-height: 1.12; font-variant-numeric: tabular-nums; }
[data-tool-root="random-number-generator"] .rng-result-primary-secondary { display: block; margin-top: 4px; color: var(--rng-gray-600); }
[data-tool-root="random-number-generator"] .rng-data-band {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin: 12px 0 0;
  padding: 14px 0;
  border-top: 1px solid var(--rng-gray-300);
  border-bottom: 1px solid var(--rng-gray-300);
}
[data-tool-root="random-number-generator"] .rng-data-band > div { min-width: 0; padding: 0 10px; }
[data-tool-root="random-number-generator"] .rng-data-band > div:first-child { padding-left: 0; }
[data-tool-root="random-number-generator"] .rng-data-band > div + div { border-left: 1px solid var(--rng-gray-300); }
[data-tool-root="random-number-generator"] .rng-data-band dt { color: var(--rng-gray-600); font-size: 12px; }
[data-tool-root="random-number-generator"] .rng-data-band dd { margin: 2px 0 0; overflow-wrap: anywhere; font-weight: 800; font-variant-numeric: tabular-nums; }
[data-tool-root="random-number-generator"] .rng-result-list-wrap { margin-top: 16px; min-height: 160px; max-height: 300px; overflow: auto; border: 1px solid var(--rng-gray-300); border-radius: var(--rng-radius); }
[data-tool-root="random-number-generator"] .rng-result-list-title { position: sticky; top: 0; z-index: 1; margin: 0; padding: 10px 12px; background: var(--rng-gray-100); border-bottom: 1px solid var(--rng-gray-300); font-size: 15px; }
[data-tool-root="random-number-generator"] .rng-result-list { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 0; margin: 0; padding: 0; list-style: none; }
[data-tool-root="random-number-generator"] .rng-result-list li { min-width: 0; padding: 8px 12px; border-bottom: 1px solid var(--rng-gray-200); font-variant-numeric: tabular-nums; overflow-wrap: anywhere; }
[data-tool-root="random-number-generator"] .rng-result-list .rng-result-empty { grid-column: 1 / -1; color: var(--rng-gray-600); }
[data-tool-root="random-number-generator"] .rng-result-note { margin: 14px 0 0; color: var(--rng-gray-600); }
[data-tool-root="random-number-generator"] .rng-result-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-top: 14px; }
[data-tool-root="random-number-generator"] .rng-more,
[data-tool-root="random-number-generator"] .rng-related { margin-top: 32px; }
[data-tool-root="random-number-generator"] .rng-more > h2,
[data-tool-root="random-number-generator"] .rng-related > h2 { margin: 0 0 16px; padding-left: 10px; border-left: 3px solid var(--rng-gray-900); font-size: 24px; line-height: 1.3; }
[data-tool-root="random-number-generator"] .rng-accordion-group { border: 1px solid var(--rng-gray-300); border-radius: var(--rng-radius); overflow: hidden; }
[data-tool-root="random-number-generator"] .rng-acc { background: #fff; }
[data-tool-root="random-number-generator"] .rng-acc + .rng-acc { border-top: 1px solid var(--rng-gray-300); }
[data-tool-root="random-number-generator"] .rng-acc > summary { min-height: 48px; padding: 12px 16px; cursor: pointer; font-weight: 800; }
[data-tool-root="random-number-generator"] .rng-acc-panel { padding: 0 16px 16px; }
[data-tool-root="random-number-generator"] .rng-acc-panel h3 { margin: 16px 0 8px; font-size: 18px; }
[data-tool-root="random-number-generator"] .rng-acc-panel p { max-width: 72ch; margin: 0 0 12px; }
[data-tool-root="random-number-generator"] .rng-acc-panel ul { margin: 0; padding-left: 22px; }
[data-tool-root="random-number-generator"] .rng-faq { border-top: 1px solid var(--rng-gray-300); }
[data-tool-root="random-number-generator"] .rng-faq > summary { padding: 12px 0; font-weight: 700; cursor: pointer; }
[data-tool-root="random-number-generator"] .rng-faq p { padding-bottom: 8px; }
[data-tool-root="random-number-generator"] .rng-source-list a { color: var(--rng-gray-900); text-underline-offset: 3px; }
[data-tool-root="random-number-generator"] .rng-related-accordion { border: 1px solid var(--rng-gray-300); border-radius: var(--rng-radius); }
[data-tool-root="random-number-generator"] .rng-related-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 12px; padding: 0 16px 16px; }
[data-tool-root="random-number-generator"] .rng-related-card { display: flex; flex-direction: column; gap: 4px; min-width: 0; padding: 14px; border: 1px solid var(--rng-gray-300); border-radius: var(--rng-radius); color: var(--rng-gray-900); text-decoration: none; }
[data-tool-root="random-number-generator"] .rng-related-card:hover { background: var(--rng-gray-150); border-color: var(--rng-gray-400); }
[data-tool-root="random-number-generator"] .rng-related-card span { color: var(--rng-gray-600); }
[data-tool-root="random-number-generator"] [hidden] { display: none !important; }

@media (max-width: 900px) {
  [data-tool-root="random-number-generator"] .rng-result-list { grid-template-columns: repeat(2, minmax(0,1fr)); }
}
@media (max-width: 720px) {
  [data-tool-root="random-number-generator"] .rng-workspace-grid { grid-template-columns: 1fr; gap: 8px; }
  [data-tool-root="random-number-generator"] .rng-panel { padding: 14px 12px; }
  [data-tool-root="random-number-generator"] .rng-related-grid { grid-template-columns: 1fr; }
}
@media (max-width: 430px) {
  [data-tool-root="random-number-generator"] .rng-field-grid,
  [data-tool-root="random-number-generator"] .rng-options-row,
  [data-tool-root="random-number-generator"] .rng-actions,
  [data-tool-root="random-number-generator"] .rng-result-actions { grid-template-columns: 1fr; }
  [data-tool-root="random-number-generator"] .rng-data-band { grid-template-columns: repeat(2, minmax(0,1fr)); }
  [data-tool-root="random-number-generator"] .rng-data-band > div { padding: 8px 10px; border-left: 0 !important; }
  [data-tool-root="random-number-generator"] .rng-data-band > div:nth-child(even) { border-left: 1px solid var(--rng-gray-300) !important; }
  [data-tool-root="random-number-generator"] .rng-result-list { grid-template-columns: 1fr; }
  [data-tool-root="random-number-generator"] .rng-btn,
  [data-tool-root="random-number-generator"] .rng-chip,
  [data-tool-root="random-number-generator"] .rng-segmented-item { min-height: 44px; }
}
@media (prefers-reduced-motion: reduce) {
  [data-tool-root="random-number-generator"] * { scroll-behavior: auto !important; transition: none !important; animation: none !important; }
}