.rrc-tool {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.rrc-layout {
  display: grid;
  grid-template-columns: minmax(260px, 340px) minmax(0, 1fr);
  gap: 12px;
}

.rrc-panel {
  background: var(--bg-canvas);
  border: 1px solid var(--border-default);
  border-radius: var(--radius);
  padding: 12px;
  min-width: 0;
}

.rrc-panel-head {
  margin-bottom: 10px;
}

.rrc-panel-head h2 {
  margin: 0;
  font-size: 13px;
  font-weight: 600;
}

.rrc-form {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.rrc-field {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 11px;
  color: var(--fg-muted);
}

.rrc-field > span {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--fg-subtle);
}

.rrc-select,
.rrc-input {
  background: var(--bg-subtle);
  border: 1px solid var(--border-default);
  color: var(--fg-default);
  border-radius: var(--radius);
  font: inherit;
  font-size: 12px;
  padding: 7px 8px;
  box-sizing: border-box;
  width: 100%;
  color-scheme: dark;
}

.rrc-select option {
  background-color: var(--bg-subtle);
  color: var(--fg-default);
}

.rrc-side-tabs {
  display: flex;
  gap: 4px;
}

.rrc-side-tab {
  flex: 1;
  background: var(--bg-subtle);
  border: 1px solid var(--border-default);
  color: var(--fg-muted);
  border-radius: var(--radius);
  font: inherit;
  font-size: 11px;
  padding: 6px 8px;
  cursor: pointer;
}

.rrc-side-tab.is-active {
  color: var(--fg-default);
  border-color: var(--accent-emphasis);
  background: var(--bg-muted);
}

.rrc-load-plan {
  background: transparent;
  border: 1px dashed var(--border-default);
  color: var(--accent);
  border-radius: var(--radius);
  font: inherit;
  font-size: 11px;
  padding: 7px 8px;
  cursor: pointer;
}

.rrc-load-plan:hover {
  border-color: var(--accent-emphasis);
}

.rrc-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 10px;
  padding-top: 8px;
  border-top: 1px solid var(--border-muted);
  font-size: 11px;
  color: var(--fg-muted);
}

.rrc-hero-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 8px;
  margin-bottom: 12px;
}

.rrc-hero-card {
  background: var(--bg-subtle);
  border: 1px solid var(--border-muted);
  border-radius: var(--radius);
  padding: 10px;
}

.rrc-hero-label {
  display: block;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--fg-subtle);
}

.rrc-hero-value {
  display: block;
  font-size: 20px;
  font-weight: 700;
  margin: 4px 0 2px;
}

.rrc-hero-sub {
  display: block;
  font-size: 10px;
  color: var(--fg-muted);
}

.rrc-kv-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 8px;
}

.rrc-kv .k {
  font-size: 10px;
  color: var(--fg-subtle);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.rrc-kv .v {
  font-size: 13px;
  margin-top: 2px;
}

.rrc-table-wrap {
  overflow-x: auto;
}

.rrc-table tbody tr.is-current {
  background: color-mix(in srgb, var(--accent-emphasis) 12%, transparent);
}

.rrc-empty {
  color: var(--fg-muted);
  font-size: 12px;
}

/* Tool guide */
.rrc-tool > .tf-guide-box {
  margin-top: 4px;
}

.rrc-tool .tf-guide-box {
  background: var(--bg-canvas);
  border: 1px solid var(--border-default);
  border-left: 3px solid var(--accent-emphasis);
  border-radius: var(--radius);
  padding: 12px 14px;
  font-size: 12px;
  color: var(--fg-muted);
}

.rrc-tool .tf-guide-box summary {
  cursor: pointer;
  color: var(--fg-default);
  font-weight: 600;
  font-size: 13px;
  list-style: none;
}

.rrc-tool .tf-guide-box summary::-webkit-details-marker {
  display: none;
}

.rrc-tool .tf-guide-content {
  margin-top: 12px;
}

.rrc-tool .tf-guide-intro {
  margin: 0 0 14px;
  line-height: 1.55;
  max-width: 90ch;
  opacity: 0.9;
}

.rrc-tool .tf-guide-heading {
  margin: 0 0 8px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--fg-default);
}

.rrc-tool .tf-guide-list {
  margin: 0;
  padding-left: 18px;
  line-height: 1.55;
}

.rrc-tool .tf-guide-list li + li {
  margin-top: 6px;
}

.rrc-tool .tf-guide-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}

.rrc-tool .tf-guide-block {
  min-width: 0;
  padding: 10px 12px;
  border-radius: var(--radius);
  background: var(--bg-subtle);
  border: 1px solid var(--border-muted);
}

.rrc-tool .tf-guide-list-consider li::marker {
  color: var(--accent-emphasis);
}

@media (max-width: 900px) {
  .rrc-layout {
    grid-template-columns: 1fr;
  }
}