/* Scoped CSS for Random Username Generator (Prefix: rung) */
:root {
  --rung-bg: #f8fafc;
  --rung-card-bg: #ffffff;
  --rung-text: #0f172a;
  --rung-text-muted: #64748b;
  --rung-border: #e2e8f0;
  --rung-primary: var(--tf-accent);
  --rung-primary-hover: var(--tf-accent-hover);
  --rung-primary-light: var(--tf-accent-wash);
  --rung-secondary: #f1f5f9;
  --rung-secondary-hover: #e2e8f0;
  --shadow: none;
  --rung-radius: 10px;
}

.rung-main {
  box-sizing: border-box;
  max-width: 46rem;
  margin-inline: auto;
  padding: 1.5rem 1rem 3rem;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  color: var(--rung-text);
  line-height: 1.5;
}

.rung-wrap {
  box-sizing: border-box;
  padding-inline: 1.5rem;
  margin-inline: auto;
  max-width: 46rem;
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
}

.rung-panel {
  background-color: var(--rung-card-bg);
  border: 1px solid var(--rung-border);
  border-radius: 2px;
  padding: 1.5rem;
  box-shadow: none;
}

.rung-panel-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--rung-border);
}

.rung-panel-title {
  font-size: 1.2rem;
  font-weight: 700;
  margin: 0;
  color: var(--rung-text);
}

.rung-btn-ghost {
  background: none;
  border: none;
  color: var(--rung-primary);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  padding: 0.35rem 0.6rem;
  border-radius: 2px;
}

.rung-btn-ghost:hover {
  background-color: var(--rung-primary-light);
}

.rung-form {
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}

.rung-row {
  display: flex;
  gap: 1rem;
  flex-direction: column;
}

@media (min-width: 640px) {
  .rung-row {
    flex-direction: row;
  }
  .rung-field-half {
    flex: 1;
  }
  .rung-field-third {
    flex: 1;
  }
}

.rung-field {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.rung-field label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--rung-text);
}

.rung-select,
.rung-input {
  width: 100%;
  padding: 0.7rem 0.85rem;
  border: 1px solid var(--rung-border);
  border-radius: 2px;
  background-color: var(--rung-card-bg);
  color: var(--rung-text);
  font-size: 0.95rem;
  box-sizing: border-box;
  transition: border-color 0.15s ease;
}

.rung-select:focus,
.rung-input:focus {
  outline: none;
  border-color: var(--rung-primary);
  box-shadow: none;
}

.rung-actions-row {
  display: flex;
  gap: 0.75rem;
}

.rung-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.4rem;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: 2px;
  border: none;
  cursor: pointer;
  transition: background-color 0.15s ease;
}

.rung-btn-primary {
  background-color: var(--tf-accent-ink, #ffffff);
  color: var(--tf-accent-ink, #ffffff);
  flex: 2;
}

.rung-btn-primary:hover {
  background-color: var(--rung-primary-hover);
}

.rung-btn-secondary {
  background-color: var(--rung-secondary);
  color: var(--rung-text);
  flex: 1;
}

.rung-btn-secondary:hover {
  background-color: var(--rung-secondary-hover);
}

.rung-stats-row {
  display: flex;
  gap: 1.5rem;
  padding: 0.6rem 0.85rem;
  background-color: var(--rung-secondary);
  border-radius: 2px;
  font-size: 0.825rem;
  align-items: center;
  flex-wrap: wrap;
}

.rung-stat-item {
  display: flex;
  gap: 0.35rem;
  align-items: center;
}

.rung-stat-label {
  color: var(--rung-text-muted);
}

.rung-stat-val {
  font-weight: 700;
  color: var(--rung-text);
}

.rung-copied-toast {
  font-weight: 700;
  color: #16a34a;
  opacity: 0;
  transition: opacity 0.2s ease;
}

.rung-toast-visible {
  opacity: 1;
}

.rung-results {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.rung-results-header {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.rung-results-title {
  font-size: 1.15rem;
  font-weight: 700;
  margin: 0;
  color: var(--rung-text);
}

.rung-results-sub {
  font-size: 0.825rem;
  color: var(--rung-text-muted);
}

.rung-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 0.85rem;
}

.rung-card {
  background-color: var(--rung-card-bg);
  border: 1px solid var(--rung-border);
  border-radius: 2px;
  padding: 1rem;
  box-shadow: none;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  cursor: pointer;
  transition: border-color 0.15s ease, transform 0.1s ease;
}

.rung-card:hover {
  border-color: var(--rung-primary);
  transform: translateY(-2px);
}

.rung-card-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.5rem;
}

.rung-handle-name {
  font-size: 1.05rem;
  color: var(--rung-text);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  word-break: break-all;
}

.rung-copy-btn {
  background-color: var(--rung-secondary);
  border: 1px solid var(--rung-border);
  color: var(--rung-text);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.25rem 0.6rem;
  border-radius: 2px;
  cursor: pointer;
  transition: all 0.15s ease;
}

.rung-copy-btn:hover {
  background-color: var(--rung-primary);
  border-color: var(--rung-primary);
  color: #ffffff;
}

.rung-btn-copied {
  background-color: #16a34a !important;
  border-color: #16a34a !important;
  color: #ffffff !important;
}

.rung-platform-badges {
  display: flex;
  gap: 0.4rem;
}

.rung-badge {
  font-size: 0.7rem;
  font-weight: 700;
  padding: 0.15rem 0.45rem;
  border-radius: 2px;
}

.rung-badge-ok {
  background-color: var(--rung-secondary);
  color: #16a34a;
}

.rung-badge-warn {
  background-color: rgba(220, 38, 38, 0.1);
  color: #dc2626;
}

/* tf:dark-palette — generated by migrate_chrome.py */
/* Neutrals inherit the shared chrome tokens so all tools share one
   ground; brand hues are kept and lightened, never inverted. */
[data-theme="dark"] {
  --rung-bg: var(--tf-surface);
  --rung-card-bg: var(--tf-surface);
  --rung-text: var(--tf-ink);
  --rung-text-muted: var(--tf-ink-faint);
  --rung-border: var(--tf-surface);
  --rung-secondary: var(--tf-surface);
  --rung-secondary-hover: var(--tf-surface);
}