.number-main-card {
  padding: clamp(1rem, 2.6vw, 1.45rem);
  background:
    radial-gradient(circle at top right, rgba(219, 234, 254, 0.5), transparent 30%),
    radial-gradient(circle at bottom left, rgba(254, 243, 199, 0.42), transparent 28%),
    rgba(255, 255, 255, 0.96);
}

.number-action-helper {
  margin: 0.8rem 0 0;
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.4;
}

.number-range-grid,
.number-settings-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.85rem;
}

.number-mode-tabs {
  display: inline-grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.45rem;
  margin-bottom: 1rem;
  padding: 0.3rem;
  border-radius: 999px;
  border: 1px solid rgba(226, 232, 240, 0.96);
  background: rgba(248, 250, 252, 0.9);
}

.number-mode-tab {
  min-height: 2.8rem;
  padding: 0.7rem 1rem;
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: var(--text-muted);
  font: inherit;
  font-weight: 700;
  letter-spacing: -0.02em;
  cursor: pointer;
  transition: background-color 0.2s ease, color 0.2s ease, box-shadow 0.2s ease;
}

.number-mode-tab.is-active {
  background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
  color: #fff;
  box-shadow: 0 12px 24px rgba(37, 99, 235, 0.18);
}

.number-mode-tab:focus-visible {
  outline: none;
  box-shadow: 0 0 0 4px rgba(29, 78, 216, 0.12);
}

.number-range-hint {
  margin-top: 0.7rem;
}

.number-settings {
  margin-top: 1rem;
  padding: 1.05rem;
  border-radius: 22px;
  border: 1px solid rgba(226, 232, 240, 0.96);
  background: rgba(255, 255, 255, 0.9);
}

.number-settings-grid {
  margin-bottom: 0.9rem;
}

.number-toggle-stack {
  display: grid;
  gap: 0.85rem;
}

.number-result-panel {
  margin-bottom: 1rem;
}

.number-result-panel strong {
  margin-bottom: 0.2rem;
}

.number-result-panel[data-state="drawing"] strong {
  color: var(--blue);
}

.number-result-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin: 1rem 0 0;
  padding: 0;
  list-style: none;
}

.number-result-list li {
  padding: 0.5rem 0.8rem;
  border-radius: 999px;
  border: 1px solid rgba(191, 219, 254, 0.96);
  background: rgba(239, 246, 255, 0.92);
  color: var(--text);
  font-weight: 700;
}

.number-settings[hidden] {
  display: none;
}

.number-generator-seo h2 {
  margin: 2rem 0 0.7rem;
  font-size: clamp(1.45rem, 2.4vw, 2rem);
  line-height: 1.14;
  letter-spacing: -0.04em;
}

.number-generator-seo h2:first-of-type {
  margin-top: 1.1rem;
}

@media (max-width: 920px) {
  .number-range-grid,
  .number-settings-grid {
    grid-template-columns: 1fr;
  }

  .number-mode-tabs {
    width: 100%;
  }
}