*,
*::before,
*::after {
  box-sizing: border-box;
}

:root {
  --rnm-bg0: #e0f2fe;
  --rnm-bg1: #f0fdfa;
  --rnm-surface: #ffffff;
  --rnm-surface-2: #f8fafc;
  --rnm-line: #e2e8f0;
  --rnm-line-strong: #cbd5e1;
  --rnm-text: #0f172a;
  --rnm-text-soft: #475569;
  --rnm-muted: #64748b;
  --rnm-accent: #0891b2;
  --rnm-accent-2: #06b6d4;
  --rnm-accent-deep: #0e7490;
  --rnm-accent-soft: #ecfeff;
  --rnm-diff: #c2410c;
  --rnm-diff-bg: #fff7ed;
  --rnm-changed: #0d9488;
  --rnm-changed-bg: #f0fdfa;
  --rnm-danger: #dc2626;
  --rnm-danger-bg: #fef2f2;
  --rnm-radius-sm: 8px;
  --rnm-radius: 14px;
  --rnm-radius-lg: 18px;
  --rnm-shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.06);
  --rnm-shadow: 0 10px 40px -12px rgba(15, 23, 42, 0.18);
  --rnm-shadow-inset: inset 0 1px 0 rgba(255, 255, 255, 0.8);
  --rnm-font: 'Noto Sans JP', 'Segoe UI', 'Hiragino Sans', sans-serif;
  --rnm-mono: ui-monospace, 'Cascadia Code', 'Consolas', monospace;
}

html {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--rnm-font);
  font-size: 15px;
  line-height: 1.6;
  color: var(--rnm-text);
  background:
    radial-gradient(ellipse 80% 50% at 50% -20%, rgba(6, 182, 212, 0.22), transparent),
    radial-gradient(ellipse 60% 40% at 100% 0%, rgba(8, 145, 178, 0.12), transparent),
    linear-gradient(180deg, var(--rnm-bg0) 0%, var(--rnm-bg1) 40%, #f8fafc 100%);
}

.rnm-page-body {
  margin: 0;
  overflow-x: clip;
}

#pctrouble-site {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

#pctrouble-header-menu {
  flex-shrink: 0;
}

#tool-footer-container {
  flex-shrink: 0;
}

#tool-footer-container footer {
  background: #1f2937;
  color: #ffffff;
}

.rnm-page-main {
  flex: 1 0 auto;
}

.rnm-app {
  max-width: 1120px;
  margin: 0 auto;
  padding: clamp(1rem, 3vw, 1.75rem) clamp(1rem, 3vw, 1.5rem) 2.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.rnm-browser-banner {
  padding: 0.85rem 1.1rem;
  border-radius: var(--rnm-radius);
  font-size: 0.875rem;
  line-height: 1.65;
  color: var(--rnm-text-soft);
}

.rnm-browser-banner--warn {
  background: #fffbeb;
  border: 1px solid #fcd34d;
  color: #92400e;
}

.rnm-browser-banner--warn strong {
  color: #78350f;
}

.rnm-fsa-hint {
  padding: 1rem 1.15rem;
  border-radius: var(--rnm-radius);
  border: 1px solid #fcd34d;
  background: #fffbeb;
  color: #78350f;
  font-size: 0.875rem;
  line-height: 1.65;
}

.rnm-fsa-hint__title {
  margin: 0 0 0.5rem;
  font-size: 0.95rem;
  font-weight: 700;
  color: #92400e;
}

.rnm-fsa-hint__lead {
  margin: 0.75rem 0 0;
}

.rnm-fsa-hint ul,
.rnm-fsa-hint ol {
  margin: 0.5rem 0 0;
  padding-left: 1.35rem;
}

.rnm-fsa-hint li + li {
  margin-top: 0.35rem;
}

.rnm-fsa-hint code {
  padding: 0.1rem 0.35rem;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.65);
  font-family: var(--rnm-mono);
  font-size: 0.85em;
}

.rnm-fsa-hint a:any-link {
  color: #0e7490;
  font-weight: 600;
}

.rnm-fsa-hint__details {
  margin-top: 0.75rem;
  padding: 0.65rem 0.85rem;
  border-radius: var(--rnm-radius-sm);
  background: rgba(255, 255, 255, 0.55);
  border: 1px solid #fde68a;
}

.rnm-fsa-hint__details summary {
  cursor: pointer;
  font-weight: 700;
  color: #92400e;
}

/* —— Top bar —— */
.rnm-topbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem 1.25rem;
  padding: 1.1rem 1.25rem;
  background: linear-gradient(135deg, #0e7490 0%, #0891b2 45%, #22d3ee 100%);
  border-radius: var(--rnm-radius-lg);
  box-shadow: var(--rnm-shadow), var(--rnm-shadow-inset);
  color: #fff;
}

.rnm-topbar__brand {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  flex: 1 1 220px;
  min-width: 0;
}

.rnm-logo {
  flex-shrink: 0;
  display: grid;
  place-items: center;
  width: 3rem;
  height: 3rem;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.18);
  backdrop-filter: blur(8px);
}

.rnm-logo svg {
  width: 1.5rem;
  height: 1.5rem;
  stroke: #ecfeff;
}

.rnm-topbar__brand h1 {
  margin: 0;
  font-size: clamp(1.35rem, 2.5vw, 1.65rem);
  font-weight: 700;
  letter-spacing: 0.02em;
  line-height: 1.25;
}

.rnm-topbar__brand p {
  margin: 0.15rem 0 0;
  font-size: 0.8125rem;
  font-weight: 500;
  color: rgba(236, 254, 255, 0.92);
}

.rnm-privacy-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.4rem 0.75rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.16);
  border: 1px solid rgba(255, 255, 255, 0.28);
  font-size: 0.75rem;
  font-weight: 600;
  color: #ecfeff;
  white-space: nowrap;
}

.rnm-privacy-badge svg {
  width: 1rem;
  height: 1rem;
  flex-shrink: 0;
}

.rnm-topbar__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-left: auto;
}

/* —— Buttons —— */
.rnm-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.6rem 1.1rem;
  border-radius: var(--rnm-radius-sm);
  border: 1px solid transparent;
  font-family: inherit;
  font-size: 0.875rem;
  font-weight: 600;
  line-height: 1.2;
  cursor: pointer;
  transition:
    background 0.18s,
    border-color 0.18s,
    box-shadow 0.18s,
    transform 0.12s;
  white-space: nowrap;
}

.rnm-btn:focus-visible {
  outline: 2px solid #67e8f9;
  outline-offset: 2px;
}

.rnm-btn:active:not(:disabled) {
  transform: scale(0.98);
}

.rnm-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

.rnm-btn--primary {
  background: linear-gradient(180deg, #22d3ee 0%, #0891b2 100%);
  color: #fff;
  box-shadow: 0 2px 8px rgba(8, 145, 178, 0.35);
}

.rnm-btn--primary:hover:not(:disabled) {
  box-shadow: 0 4px 14px rgba(8, 145, 178, 0.45);
}

.rnm-btn--on-dark {
  background: rgba(255, 255, 255, 0.95);
  color: var(--rnm-accent-deep);
  box-shadow: var(--rnm-shadow-sm);
}

.rnm-btn--on-dark:hover:not(:disabled) {
  background: #fff;
}

.rnm-btn--outline-dark {
  background: transparent;
  border-color: rgba(255, 255, 255, 0.45);
  color: #ecfeff;
}

.rnm-btn--outline-dark:hover:not(:disabled) {
  background: rgba(255, 255, 255, 0.12);
}

.rnm-btn--secondary {
  background: var(--rnm-surface);
  border-color: var(--rnm-line);
  color: var(--rnm-accent-deep);
  box-shadow: var(--rnm-shadow-sm);
}

.rnm-btn--secondary:hover:not(:disabled) {
  border-color: #a5f3fc;
  background: var(--rnm-accent-soft);
}

.rnm-btn--ghost {
  background: transparent;
  color: var(--rnm-muted);
}

.rnm-btn--ghost:hover:not(:disabled) {
  background: var(--rnm-surface-2);
  color: var(--rnm-text);
}

label.rnm-btn input {
  display: none;
}

.rnm-btn--lg {
  padding: 0.75rem 1.35rem;
  font-size: 0.9375rem;
}

.rnm-btn--sm {
  padding: 0.4rem 0.75rem;
  font-size: 0.8125rem;
}

/* —— Cards —— */
.rnm-card {
  background: var(--rnm-surface);
  border: 1px solid var(--rnm-line);
  border-radius: var(--rnm-radius-lg);
  box-shadow: var(--rnm-shadow);
  overflow: hidden;
}

.rnm-card__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem 1rem;
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--rnm-line);
  background: linear-gradient(180deg, #fafafa 0%, var(--rnm-surface) 100%);
}

.rnm-card__head h2 {
  margin: 0;
  font-size: 1rem;
  font-weight: 700;
  color: var(--rnm-text);
  letter-spacing: 0.03em;
}

.rnm-grid-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4rem;
  margin: 0;
  min-height: 1.5rem;
}

.rnm-stat {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.2rem 0.65rem;
  border-radius: 999px;
  background: var(--rnm-surface-2);
  border: 1px solid var(--rnm-line);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--rnm-text-soft);
}

.rnm-stat strong {
  font-weight: 700;
  color: var(--rnm-text);
}

.rnm-stat--accent {
  background: var(--rnm-changed-bg);
  border-color: #99f6e4;
  color: var(--rnm-changed);
}

.rnm-stat--accent strong {
  color: var(--rnm-changed);
}

.rnm-stat--warn {
  background: var(--rnm-danger-bg);
  border-color: #fecaca;
  color: var(--rnm-danger);
}

/* —— Preview grid —— */
.rnm-grid-wrap {
  position: relative;
  min-height: 280px;
  max-height: min(52vh, 460px);
  overflow: auto;
  background: var(--rnm-surface-2);
}

.rnm-grid-wrap::before {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  border: 2px dashed transparent;
  border-radius: 0;
  transition: border-color 0.2s, background 0.2s;
  z-index: 2;
}

.rnm-grid-wrap:not(.has-files)::before {
  border-color: #bae6fd;
  background: rgba(236, 254, 255, 0.35);
}

.rnm-grid-wrap.is-dragover::before {
  border-color: var(--rnm-accent);
  background: rgba(6, 182, 212, 0.12);
}

.rnm-grid-wrap.is-dragover {
  background: var(--rnm-accent-soft);
}

.rnm-grid {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  font-size: 0.875rem;
}

.rnm-grid thead th {
  position: sticky;
  top: 0;
  z-index: 3;
  padding: 0.65rem 1rem;
  background: #f1f5f9;
  border-bottom: 1px solid var(--rnm-line-strong);
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--rnm-muted);
  text-align: left;
  white-space: nowrap;
}

.rnm-grid tbody td {
  padding: 0.7rem 1rem;
  border-bottom: 1px solid var(--rnm-line);
  vertical-align: middle;
  background: var(--rnm-surface);
}

.rnm-grid tbody tr:last-child td {
  border-bottom: none;
}

.rnm-grid tbody tr:hover td {
  background: #fafbfc;
}

.rnm-grid tbody tr.is-changed td {
  background: var(--rnm-changed-bg);
}

.rnm-grid tbody tr.is-changed:hover td {
  background: #ccfbf1;
}

.rnm-grid tbody tr.is-duplicate td {
  background: var(--rnm-danger-bg);
}

.rnm-grid tbody tr.is-invalid td {
  background: #fff7ed;
}

.rnm-name-warn {
  margin: 0.35rem 0 0;
  font-size: 0.7rem;
  line-height: 1.35;
  color: #c2410c;
}

.rnm-name-info {
  margin: 0.35rem 0 0;
  font-size: 0.7rem;
  line-height: 1.35;
  color: #0369a1;
}

.rnm-grid tbody tr.is-trim td {
  background: #f0f9ff;
}

.rnm-stat--info {
  color: #0369a1;
  font-weight: 600;
}

.rnm-preview-card__head {
  flex-wrap: wrap;
  gap: 0.75rem 1.25rem;
}

.rnm-preview-card__tools {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem 1.25rem;
  margin-left: auto;
}

.rnm-sort-label {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: var(--rnm-muted);
}

.rnm-sort-label select {
  min-width: 9.5rem;
}

.rnm-serial-block {
  margin: 1rem 0 0;
  padding: 0.85rem 1rem;
  border: 1px solid var(--rnm-line);
  border-radius: var(--rnm-radius);
  background: #fafbfc;
}

.rnm-serial-block__legend {
  padding: 0 0.35rem;
  font-size: 0.875rem;
  font-weight: 600;
}

.rnm-serial-block__fields {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1rem;
  margin-top: 0.65rem;
}

.rnm-serial-block__fields[hidden] {
  display: none !important;
}

.rnm-serial-block__hint {
  margin: 0.65rem 0 0;
}

.col-num {
  width: 2.5rem;
  text-align: right;
  font-variant-numeric: tabular-nums;
  color: var(--rnm-muted);
  font-size: 0.8125rem;
}

.col-status {
  width: 5.75rem;
  text-align: center;
  vertical-align: middle;
}

.col-ext {
  width: 6.5rem;
}

.rnm-grid thead th.col-remove {
  text-align: center;
  text-transform: none;
  letter-spacing: 0;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.55rem 0.5rem;
  vertical-align: middle;
}

.rnm-col-remove-head {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.15rem;
  line-height: 1.2;
  color: var(--rnm-muted);
}

.rnm-col-remove-head__icon {
  width: 0.9rem;
  height: 0.9rem;
  opacity: 0.85;
}

.rnm-col-remove-head__text {
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.06em;
}

.col-remove {
  width: 3.25rem;
  padding-left: 0.5rem;
  padding-right: 0.5rem;
  text-align: center;
  vertical-align: middle;
}

.rnm-row-remove {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  padding: 0;
  border: none;
  border-radius: 999px;
  background: linear-gradient(180deg, #f8fafc 0%, #f1f5f9 100%);
  color: #94a3b8;
  box-shadow: var(--rnm-shadow-sm), inset 0 1px 0 rgba(255, 255, 255, 0.9);
  cursor: pointer;
  transition:
    background 0.18s ease,
    color 0.18s ease,
    box-shadow 0.18s ease,
    transform 0.12s ease;
}

.rnm-row-remove svg {
  width: 0.9rem;
  height: 0.9rem;
}

.rnm-row-remove:hover {
  background: linear-gradient(180deg, #fff1f2 0%, #ffe4e6 100%);
  color: #e11d48;
  box-shadow: 0 2px 10px rgba(225, 29, 72, 0.18);
}

.rnm-row-remove:focus-visible {
  outline: 2px solid #fda4af;
  outline-offset: 2px;
  color: #e11d48;
  background: #fff1f2;
}

.rnm-row-remove:active {
  transform: scale(0.92);
}

.rnm-grid tbody tr:hover .rnm-row-remove {
  color: #64748b;
  background: linear-gradient(180deg, #ffffff 0%, #f1f5f9 100%);
}

.rnm-badge {
  display: inline-block;
  padding: 0.2rem 0.55rem;
  border-radius: 6px;
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.rnm-badge--changed {
  background: #14b8a6;
  color: #fff;
}

.rnm-badge--same {
  background: var(--rnm-surface-2);
  color: var(--rnm-muted);
  border: 1px solid var(--rnm-line);
}

.rnm-status-wrap {
  display: inline-flex;
  flex-direction: row;
  flex-wrap: nowrap;
  align-items: center;
  justify-content: center;
  gap: 0.2rem;
  max-width: 100%;
}

.rnm-status-wrap .rnm-badge {
  flex-shrink: 0;
  white-space: nowrap;
  line-height: 1.2;
  font-size: 0.625rem;
  padding: 0.12rem 0.35rem;
  letter-spacing: 0;
}

.rnm-badge--direct {
  background: #dbeafe;
  color: #1d4ed8;
  border: 1px solid #93c5fd;
  font-size: 0.625rem;
  padding: 0.12rem 0.35rem;
  letter-spacing: 0;
}

.rnm-badge--zip {
  background: #f1f5f9;
  color: #64748b;
  border: 1px solid var(--rnm-line);
  font-size: 0.625rem;
  padding: 0.12rem 0.35rem;
  letter-spacing: 0;
}

.rnm-chip {
  display: inline-block;
  max-width: 100%;
  padding: 0.2rem 0.5rem;
  border-radius: 6px;
  background: #f1f5f9;
  border: 1px solid var(--rnm-line);
  font-family: var(--rnm-mono);
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--rnm-text-soft);
  word-break: break-all;
}

.rnm-mono {
  font-family: var(--rnm-mono);
  font-size: 0.8125rem;
  line-height: 1.45;
  word-break: break-all;
}

.rnm-preview {
  font-family: var(--rnm-mono);
  font-size: 0.8125rem;
  line-height: 1.45;
  word-break: break-all;
}

.rnm-preview strong.rnm-diff {
  color: var(--rnm-diff);
  font-weight: 700;
  background: var(--rnm-diff-bg);
  border-radius: 3px;
  padding: 0 0.1em;
}

.rnm-preview.is-same {
  color: var(--rnm-muted);
}

.rnm-grid-empty td {
  padding: 0;
  border: none;
  background: transparent !important;
}

.rnm-drop-hint {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 280px;
  padding: 2rem 1.5rem;
  text-align: center;
  pointer-events: none;
}

.rnm-drop-hint__icon {
  display: grid;
  place-items: center;
  width: 4rem;
  height: 4rem;
  margin-bottom: 1rem;
  border-radius: 50%;
  background: linear-gradient(145deg, #cffafe, #a5f3fc);
  color: var(--rnm-accent-deep);
}

.rnm-drop-hint__icon svg {
  width: 2rem;
  height: 2rem;
}

.rnm-drop-hint__title {
  margin: 0 0 0.35rem;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--rnm-text);
}

.rnm-drop-hint__sub {
  margin: 0;
  font-size: 0.875rem;
  color: var(--rnm-muted);
}

/* —— Settings panel —— */
.rnm-settings-card .rnm-card__body {
  padding: 1.25rem;
}

.rnm-tabs {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 0.25rem;
  padding: 0.25rem;
  margin-bottom: 1.25rem;
  background: #f1f5f9;
  border-radius: var(--rnm-radius-sm);
  border: 1px solid var(--rnm-line);
}

.rnm-tab {
  padding: 0.5rem 1rem;
  border: none;
  border-radius: 6px;
  background: transparent;
  font-family: inherit;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--rnm-muted);
  cursor: pointer;
  transition: background 0.15s, color 0.15s, box-shadow 0.15s;
}

.rnm-tab:hover {
  color: var(--rnm-text);
}

.rnm-tab.is-active {
  background: var(--rnm-surface);
  color: var(--rnm-accent-deep);
  box-shadow: var(--rnm-shadow-sm);
}

.rnm-tab-panel[hidden] {
  display: none !important;
}

.rnm-tab-panel {
  animation: rnm-fade 0.2s ease;
}

@keyframes rnm-fade {
  from {
    opacity: 0;
    transform: translateY(4px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.rnm-width-group {
  grid-column: 1 / -1;
}

.rnm-width-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 0.75rem;
}

.rnm-width-bar__conv {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-shrink: 0;
}

.rnm-width-bar__label {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--rnm-muted);
  white-space: nowrap;
}

.rnm-width-bar__conv select {
  width: auto;
  min-width: 8.5rem;
  min-height: 2.25rem;
  padding: 0.35rem 0.55rem;
  border: 1px solid var(--rnm-line-strong);
  border-radius: var(--rnm-radius-sm);
  background: var(--rnm-surface);
  font-family: inherit;
  font-size: 0.875rem;
  color: var(--rnm-text);
}

.rnm-width-bar__conv select:hover {
  border-color: #94a3b8;
}

.rnm-width-bar__conv select:focus {
  outline: none;
  border-color: var(--rnm-accent);
  box-shadow: 0 0 0 3px rgba(8, 145, 178, 0.2);
}

.rnm-width-targets {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem 0.5rem;
  margin: 0;
  padding: 0;
  min-width: 0;
  flex: 1 1 auto;
  border: none;
  background: transparent;
}

.rnm-width-targets:disabled,
.rnm-width-targets.is-disabled {
  opacity: 0.55;
  pointer-events: none;
}

.rnm-width-targets__legend {
  margin: 0;
  padding: 0;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--rnm-muted);
  white-space: nowrap;
  float: none;
}

.rnm-width-targets__checks {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.3rem 0.45rem;
  margin: 0;
}

.rnm-width-targets .rnm-check--compact {
  padding: 0.2rem 0.4rem;
  font-size: 0.8125rem;
  border-radius: 6px;
}

.rnm-width-targets .rnm-check--compact input {
  width: 0.95rem;
  height: 0.95rem;
  margin-top: 0;
}

.rnm-check--compact {
  padding: 0.25rem 0.45rem;
  font-size: 0.8125rem;
}

.rnm-field-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 1rem 1.25rem;
}

.rnm-field-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.rnm-field-group--delete {
  grid-column: 1 / -1;
}

.rnm-field-group__label {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--rnm-muted);
}

.rnm-field-group__row {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: 0.65rem 1rem;
}

.rnm-field-group__row .rnm-field--inline {
  flex: 1 1 10rem;
  min-width: 0;
  margin: 0;
}

.rnm-field-group__row .rnm-field--count {
  flex: 0 0 auto;
  width: 5.5rem;
}

.rnm-field__sub {
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--rnm-muted);
  opacity: 0.9;
}

.rnm-field {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.rnm-field > span {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--rnm-muted);
}

.rnm-field--wide {
  grid-column: 1 / -1;
}

.rnm-field input,
.rnm-field select,
.rnm-field textarea {
  width: 100%;
  min-height: 2.75rem;
  padding: 0.55rem 0.75rem;
  border: 1px solid var(--rnm-line-strong);
  border-radius: var(--rnm-radius-sm);
  background: var(--rnm-surface);
  font-family: inherit;
  font-size: 0.875rem;
  color: var(--rnm-text);
  transition: border-color 0.15s, box-shadow 0.15s;
}

.rnm-field input:hover,
.rnm-field select:hover,
.rnm-field textarea:hover {
  border-color: #94a3b8;
}

.rnm-field input:focus,
.rnm-field select:focus,
.rnm-field textarea:focus {
  outline: none;
  border-color: var(--rnm-accent);
  box-shadow: 0 0 0 3px rgba(8, 145, 178, 0.2);
}

.rnm-field textarea {
  min-height: 5.5rem;
  resize: vertical;
}

.rnm-check {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  padding: 0.75rem 1rem;
  border-radius: var(--rnm-radius-sm);
  border: 1px solid var(--rnm-line);
  background: var(--rnm-surface-2);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--rnm-text-soft);
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
}

.rnm-check:hover {
  border-color: #a5f3fc;
  background: var(--rnm-accent-soft);
}

.rnm-check input {
  width: 1.125rem;
  height: 1.125rem;
  margin-top: 0.15rem;
  accent-color: var(--rnm-accent);
  flex-shrink: 0;
}

.rnm-cleanup-actions {
  display: grid;
  gap: 0.65rem;
}

.rnm-hint {
  margin: 0 0 1rem;
  padding: 0.75rem 1rem;
  border-radius: var(--rnm-radius-sm);
  border-left: 3px solid var(--rnm-accent);
  background: var(--rnm-accent-soft);
  font-size: 0.8125rem;
  color: var(--rnm-text-soft);
  line-height: 1.6;
}

.rnm-hint code {
  padding: 0.1rem 0.35rem;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.7);
  font-family: var(--rnm-mono);
  font-size: 0.8em;
}

.rnm-ai-examples {
  margin: 0 0 0.75rem;
  padding: 0.65rem 0.75rem;
  border: 1px solid var(--rnm-border, #d8dee9);
  border-radius: 8px;
  background: var(--rnm-surface-muted, #f6f8fb);
}

.rnm-ai-examples__title {
  margin: 0 0 0.4rem;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--rnm-text-muted, #4a5568);
}

.rnm-ai-examples__list {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.rnm-ai-examples__group {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  list-style: none;
}

.rnm-ai-examples__group-title {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--rnm-muted, #718096);
  letter-spacing: 0.02em;
}

.rnm-ai-examples__group-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 0.5rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.rnm-ai-examples__group-list li {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
}

.rnm-ai-examples__btn {
  font: inherit;
  font-size: 0.8125rem;
  padding: 0.2rem 0.55rem;
  border: 1px solid var(--rnm-border, #c5cdd8);
  border-radius: 999px;
  background: #fff;
  color: var(--rnm-text, #1a202c);
  cursor: pointer;
}

.rnm-ai-examples__btn:hover {
  border-color: var(--rnm-accent, #2563eb);
  color: var(--rnm-accent, #2563eb);
}

.rnm-ai-examples__note {
  font-size: 0.6875rem;
  color: var(--rnm-text-muted, #718096);
}

.rnm-ai-examples__hint {
  margin: 0.5rem 0 0;
  font-size: 0.75rem;
  line-height: 1.45;
  color: var(--rnm-text-muted, #4a5568);
}

.rnm-ai-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.75rem;
}

.rnm-ai-plan {
  margin-top: 1rem;
  padding: 0.85rem 1rem;
  border: 1px solid var(--rnm-line);
  border-radius: var(--rnm-radius);
  background: #f0fdfa;
}

.rnm-ai-plan__summary {
  margin: 0 0 0.65rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--rnm-ink);
}

.rnm-ai-plan__steps {
  margin: 0;
  padding-left: 1.25rem;
  font-size: 0.8125rem;
  color: var(--rnm-muted);
}

.rnm-ai-plan__steps li {
  margin: 0.35rem 0;
}

.rnm-ai-plan__steps code {
  font-family: var(--rnm-mono);
  font-size: 0.78em;
  word-break: break-all;
}

.rnm-ai-status {
  margin: 0.75rem 0 0;
  font-size: 0.8125rem;
  color: var(--rnm-muted);
}

.rnm-ai-download {
  margin-top: 0.85rem;
  padding: 0.85rem 1rem;
  border: 1px solid #a5f3fc;
  border-radius: var(--rnm-radius);
  background: #ecfeff;
}

.rnm-ai-download__label {
  margin: 0 0 0.5rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--rnm-ink);
}

.rnm-ai-download__track {
  height: 0.65rem;
  border-radius: 999px;
  background: #cffafe;
  overflow: hidden;
}

.rnm-ai-download__bar {
  height: 100%;
  width: 0%;
  border-radius: inherit;
  background: linear-gradient(90deg, #06b6d4 0%, #0891b2 100%);
  transition: width 0.35s ease;
}

.rnm-ai-download__eta {
  margin: 0.45rem 0 0;
  font-size: 0.8125rem;
  color: var(--rnm-muted);
}

.rnm-ai-status.is-busy {
  color: var(--rnm-accent);
}

.rnm-ai-status.is-ok {
  color: #047857;
}

.rnm-ai-status.is-ng {
  color: var(--rnm-danger);
}

/* —— Execute bar —— */
.rnm-execute {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem 1rem;
  margin-top: 1.5rem;
  padding: 1.1rem 1.25rem;
  border-radius: var(--rnm-radius);
  background: linear-gradient(180deg, #f8fafc 0%, #f1f5f9 100%);
  border: 1px solid var(--rnm-line);
}

.rnm-execute__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.rnm-execute-note {
  flex: 1 1 200px;
  margin: 0;
  font-size: 0.8125rem;
  color: var(--rnm-muted);
  line-height: 1.5;
}

/* —— Log（折りたたみ） —— */
.rnm-log-card {
  padding: 0;
}

.rnm-log-details {
  margin: 0;
}

.rnm-log-summary {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.35rem 0.75rem;
  padding: 0.85rem 1.15rem;
  list-style: none;
  cursor: pointer;
  user-select: none;
}

.rnm-log-summary::-webkit-details-marker {
  display: none;
}

.rnm-log-summary::before {
  content: '▸';
  margin-right: 0.45rem;
  color: var(--rnm-muted);
  transition: transform 0.15s ease;
}

.rnm-log-details[open] .rnm-log-summary::before {
  transform: rotate(90deg);
}

.rnm-log-summary__title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--rnm-text);
}

.rnm-log-summary__note {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--rnm-muted);
}

.rnm-log-body {
  padding: 0 1.15rem 1.15rem;
  border-top: 1px solid var(--rnm-line);
}

.rnm-log-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin: 0.75rem 0 0.65rem;
}

.rnm-log-view {
  display: block;
  width: 100%;
  margin: 0;
  min-height: 8rem;
  max-height: 220px;
  padding: 0.75rem 0.85rem;
  border: 1px solid var(--rnm-line);
  border-radius: var(--rnm-radius-sm);
  background: #0f172a;
  color: #e2e8f0;
  font-family: var(--rnm-mono);
  font-size: 0.75rem;
  line-height: 1.55;
  resize: vertical;
  tab-size: 2;
}

.rnm-log-card.has-errors .rnm-log-view {
  border-color: #f87171;
  box-shadow: 0 0 0 2px rgba(248, 113, 113, 0.25);
}

.rnm-log-card.has-errors .rnm-log-summary__title {
  color: var(--rnm-danger);
}

/* —— Footer —— */
.rnm-footer {
  padding-top: 0.5rem;
  text-align: center;
}

.rnm-ad-slot {
  min-height: 72px;
  margin-bottom: 0.85rem;
  border-radius: var(--rnm-radius-sm);
  border: 1px dashed var(--rnm-line-strong);
  background: rgba(255, 255, 255, 0.55);
}

.rnm-ad-slot--filled {
  position: relative;
  min-height: 0;
  padding: 0.35rem 0;
  border: none;
  background: transparent;
}

.rnm-ad-slot__link {
  display: block;
  max-width: 100%;
  margin: 0 auto;
  line-height: 0;
}

.rnm-ad-slot__img {
  display: block;
  width: 100%;
  max-width: 720px;
  height: auto;
  margin: 0 auto;
  border: none;
}

.rnm-ad-slot__pixel {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.rnm-footer-link {
  margin: 0;
  font-size: 0.8125rem;
  color: var(--rnm-muted);
}

.rnm-footer-link a:any-link {
  color: var(--rnm-accent);
  font-weight: 600;
  text-decoration: none;
}

.rnm-footer-link a:hover {
  text-decoration: underline;
}

/* —— History —— */
.rnm-field__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
}

.rnm-field__head label {
  margin: 0;
}

.rnm-history-toggle {
  flex-shrink: 0;
  padding: 0.2rem 0.55rem;
  border: 1px solid var(--rnm-border);
  border-radius: var(--rnm-radius-sm);
  background: var(--rnm-surface);
  color: var(--rnm-muted);
  font-size: 0.75rem;
  font-weight: 600;
  cursor: pointer;
}

.rnm-history-toggle:hover,
.rnm-history-toggle[aria-expanded='true'] {
  border-color: var(--rnm-accent);
  color: var(--rnm-accent);
}

.rnm-history-panel {
  margin-top: 0.45rem;
  padding: 0.5rem;
  border: 1px solid var(--rnm-border);
  border-radius: var(--rnm-radius-sm);
  background: var(--rnm-bg);
}

.rnm-history-panel__actions {
  display: flex;
  justify-content: flex-end;
  margin-bottom: 0.35rem;
}

.rnm-history-clear {
  padding: 0;
  border: none;
  background: none;
  color: var(--rnm-muted);
  font-size: 0.7rem;
  cursor: pointer;
  text-decoration: underline;
}

.rnm-history-clear:hover {
  color: var(--rnm-accent);
}

.rnm-history-list {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  max-height: 10rem;
  overflow-y: auto;
}

.rnm-history-empty {
  margin: 0;
  padding: 0.35rem 0;
  font-size: 0.75rem;
  color: var(--rnm-muted);
  text-align: center;
}

.rnm-history-item {
  display: flex;
  align-items: stretch;
  gap: 0.2rem;
}

.rnm-history-item__apply {
  flex: 1;
  min-width: 0;
  display: flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.35rem 0.5rem;
  border: 1px solid transparent;
  border-radius: var(--rnm-radius-sm);
  background: var(--rnm-surface);
  color: var(--rnm-text);
  font-size: 0.8125rem;
  text-align: left;
  cursor: pointer;
}

.rnm-history-item__apply:hover {
  border-color: var(--rnm-accent);
  background: #f0fdfa;
}

.rnm-history-item__label {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.rnm-history-tag {
  flex-shrink: 0;
  padding: 0.05rem 0.35rem;
  border-radius: 4px;
  background: #e0e7ff;
  color: #3730a3;
  font-size: 0.65rem;
  font-weight: 600;
}

.rnm-history-item__delete {
  flex-shrink: 0;
  width: 1.75rem;
  padding: 0;
  border: 1px solid var(--rnm-border);
  border-radius: var(--rnm-radius-sm);
  background: var(--rnm-surface);
  color: var(--rnm-muted);
  font-size: 1rem;
  line-height: 1;
  cursor: pointer;
}

.rnm-history-item__delete:hover {
  border-color: #dc2626;
  color: #dc2626;
  background: #fef2f2;
}

.rnm-replace-history {
  margin-top: 0.75rem;
  padding-top: 0.75rem;
  border-top: 1px solid var(--rnm-border);
}

.rnm-replace-history__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
}

.rnm-replace-history__head h3 {
  margin: 0;
  font-size: 0.875rem;
  font-weight: 600;
}

.rnm-replace-history__hint {
  margin: 0.35rem 0 0;
  font-size: 0.75rem;
  color: var(--rnm-muted);
}

.rnm-history-panel--replace {
  margin-top: 0.5rem;
}

/* —— Regex samples —— */
.rnm-regex-samples {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--rnm-border);
}

.rnm-regex-samples__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.5rem;
  margin-bottom: 0.35rem;
}

.rnm-regex-samples__title {
  font-size: 0.875rem;
  font-weight: 700;
}

.rnm-regex-samples__note {
  font-size: 0.7rem;
  color: var(--rnm-muted);
}

.rnm-regex-samples__intro {
  margin: 0 0 0.6rem;
}

.rnm-regex-samples__list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.rnm-regex-samples__group-title {
  margin: 0 0 0.35rem;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--rnm-muted);
  letter-spacing: 0.02em;
}

.rnm-regex-samples__group-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(13.5rem, 1fr));
  gap: 0.45rem;
}

.rnm-regex-sample__role {
  font-size: 0.65rem;
  line-height: 1.35;
  color: #0f766e;
}

.rnm-regex-sample {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.2rem;
  padding: 0.5rem 0.6rem;
  border: 1px solid var(--rnm-border);
  border-radius: var(--rnm-radius-sm);
  background: var(--rnm-surface);
  text-align: left;
  cursor: pointer;
}

.rnm-regex-sample:hover,
.rnm-regex-sample.is-active {
  border-color: var(--rnm-accent);
  background: #f0fdfa;
}

.rnm-regex-sample__title {
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--rnm-text);
}

.rnm-regex-sample__desc {
  font-size: 0.7rem;
  line-height: 1.35;
  color: var(--rnm-muted);
}

.rnm-regex-sample__pattern {
  display: block;
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 0.65rem;
  color: #0f766e;
  font-family: ui-monospace, 'Cascadia Code', monospace;
}

/* —— Toast —— */
.rnm-toast {
  position: fixed;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%) translateY(0);
  max-width: min(92vw, 400px);
  padding: 0.85rem 1.15rem;
  border-radius: var(--rnm-radius-sm);
  background: #134e4a;
  color: #fff;
  font-size: 0.875rem;
  font-weight: 500;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.22);
  z-index: 200;
  animation: rnm-toast-in 0.25s ease;
}

@keyframes rnm-toast-in {
  from {
    opacity: 0;
    transform: translateX(-50%) translateY(12px);
  }
}

.rnm-toast.is-error {
  background: #991b1b;
}

@media (max-width: 720px) {
  .rnm-width-bar {
    flex-direction: column;
    align-items: stretch;
  }

  .rnm-width-bar__conv {
    width: 100%;
  }

  .rnm-width-bar__conv select {
    flex: 1;
    min-width: 0;
    width: 100%;
  }

  .rnm-width-targets {
    width: 100%;
  }

  .rnm-topbar {
    flex-direction: column;
    align-items: stretch;
  }

  .rnm-topbar__actions {
    margin-left: 0;
    width: 100%;
  }

  .rnm-topbar__actions .rnm-btn {
    flex: 1;
  }

  .rnm-privacy-badge {
    align-self: flex-start;
  }

  .rnm-grid thead .col-before,
  .rnm-grid tbody .col-before {
    max-width: 100px;
  }

  .rnm-execute__actions {
    width: 100%;
  }

  .rnm-execute__actions .rnm-btn {
    flex: 1;
  }
}