:root {
  color-scheme: light;
  --ink: #202722;
  --muted: #59635d;
  --faint: #8d9992;
  --paper: #f2f4f2;
  --panel: #ffffff;
  --line: #dfe5e1;
  --line-strong: #bdcac3;
  --accent: #52645a;
  --accent-deep: #2b3832;
  --accent-soft: #e7ece8;
  --rail: #171f1c;
  --rail-deep: #0d1311;
  --blue: #2f78a8;
  --bad: #c0392f;
  --good: #149165;
  --warn: #b57917;
  --sun: #83907a;
  --bronze: #a76a3c;
  --bronze-deep: #8a5a30;
  --shadow: 0 22px 60px rgba(28, 38, 33, 0.17);
  --shadow-soft: 0 8px 22px rgba(28, 38, 33, 0.1);
  --radius: 16px;
  --cell: 26px;
  --cell-gap: 4px;
  --meta-w: 158px;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  height: 100%;
}

body {
  color: var(--ink);
  background:
    linear-gradient(120deg, rgba(82, 100, 90, 0.15) 0 18%, transparent 18% 72%, rgba(131, 144, 122, 0.17) 72% 100%),
    repeating-linear-gradient(90deg, rgba(32, 39, 34, 0.045) 0 1px, transparent 1px 72px),
    repeating-linear-gradient(0deg, rgba(32, 39, 34, 0.035) 0 1px, transparent 1px 72px),
    linear-gradient(180deg, #ffffff 0%, var(--paper) 54%, #edf1ed 100%);
  background-attachment: fixed;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  -webkit-font-smoothing: antialiased;
}

code {
  font-family: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.85em;
  background: rgba(82, 100, 90, 0.13);
  color: var(--accent-deep);
  padding: 0.05em 0.4em;
  border-radius: 6px;
}

button {
  cursor: pointer;
  font: inherit;
}
button:disabled {
  cursor: not-allowed;
  opacity: 0.4;
}

/* ----------------------------------------------------------- shell */
.rp-shell {
  display: grid;
  grid-template-columns: 264px 1fr;
  min-width: 0;
  min-height: 100vh;
}

/* ------------------------------------------------------------- rail */
.rp-rail {
  background:
    linear-gradient(150deg, rgba(82, 100, 90, 0.38), transparent 34%),
    linear-gradient(180deg, var(--rail) 0%, var(--rail-deep) 100%);
  color: #d7e0da;
  padding: 22px 20px 28px;
  display: flex;
  flex-direction: column;
  gap: 22px;
  position: sticky;
  top: 0;
  height: 100vh;
  min-width: 0;
}
.rp-back {
  color: #a7b5ad;
  text-decoration: none;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.01em;
}
.rp-back:hover {
  color: #f8fbe5;
}
.rp-brand {
  display: flex;
  align-items: center;
  gap: 12px;
}
.rp-brand strong {
  display: block;
  font-size: 1.05rem;
  color: #fff;
  letter-spacing: -0.01em;
}
.rp-brand small {
  color: #a9b7af;
  font-size: 0.74rem;
}
.rp-dot {
  width: 34px;
  height: 34px;
  border-radius: 11px;
  background: linear-gradient(135deg, #64786c, var(--accent-deep) 64%, var(--sun) 150%);
  box-shadow: 0 0 0 4px rgba(82, 100, 90, 0.3);
  flex: none;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
}
.rp-dot svg {
  width: 20px;
  height: 20px;
}
.rp-chapters {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 3px;
  flex: 1;
  min-width: 0;
}
.rp-chapter {
  display: flex;
  gap: 12px;
  align-items: center;
  padding: 10px 12px;
  border-radius: 11px;
  color: #b8c4bd;
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
  border: 1px solid transparent;
}
.rp-chapter:hover {
  background: rgba(255, 255, 255, 0.06);
  color: #eef4ef;
}
.rp-chapter.active {
  background: rgba(82, 100, 90, 0.32);
  border-color: rgba(130, 151, 139, 0.52);
  color: #fff;
}
.rp-chapter.done .rp-chapter-num {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}
.rp-chapter-num {
  width: 24px;
  height: 24px;
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  display: grid;
  place-items: center;
  font-size: 0.74rem;
  font-weight: 700;
  flex: none;
}
.rp-chapter.active .rp-chapter-num {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}
.rp-chapter-label {
  font-size: 0.84rem;
  font-weight: 600;
  line-height: 1.2;
}
.rp-rail-foot p {
  font-size: 0.74rem;
  color: #91a099;
  line-height: 1.5;
  margin: 0;
}

/* ------------------------------------------------------------- main */
.rp-main {
  padding: 26px 30px 30px;
  display: flex;
  flex-direction: column;
  gap: 18px;
  max-width: 1240px;
  min-width: 0;
  width: 100%;
}
.rp-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 24px;
}
.rp-kicker {
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--accent-deep);
  margin: 0 0 6px;
}
.rp-head h1 {
  margin: 0;
  font-size: 1.7rem;
  letter-spacing: -0.02em;
}
#chapterLede {
  margin: 8px 0 0;
  color: var(--muted);
  max-width: 62ch;
  line-height: 1.5;
}
.rp-head-stats {
  display: flex;
  gap: 10px;
  flex: none;
}
.rp-stat {
  background: linear-gradient(180deg, var(--panel), #ffffff);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 8px 12px;
  text-align: center;
  min-width: 64px;
  box-shadow: var(--shadow-soft);
}
.rp-stat span {
  display: block;
  font-size: 0.62rem;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--faint);
  font-weight: 700;
  white-space: nowrap;
}
.rp-stat strong {
  font-size: 1.3rem;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}
.rp-stat.warn strong {
  color: var(--bad);
}
.rp-stat.good strong {
  color: var(--good);
}

/* ------------------------------------------------------------ stage */
.rp-stage {
  position: relative;
  background: linear-gradient(180deg, rgba(255, 254, 246, 0.96), #ffffff);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 22px 24px;
  display: grid;
  grid-template-columns: 172px minmax(0, 1fr);
  gap: 22px;
  min-height: 340px;
  overflow: hidden;
}
.rp-stage::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 4px;
  background: linear-gradient(90deg, var(--accent), #728176, var(--sun));
}
.rp-station {
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-width: 0;
}
.rp-station-title {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-weight: 700;
  color: var(--faint);
  display: flex;
  align-items: baseline;
  gap: 8px;
  flex-wrap: wrap;
}
.rp-station-title code {
  text-transform: none;
  letter-spacing: 0;
}
.rp-station-sub {
  text-transform: none;
  letter-spacing: 0;
  font-weight: 500;
  color: var(--accent-deep);
}

/* ------- producer ------- */
.rp-producer {
  justify-content: flex-start;
}
.rp-card {
  background: linear-gradient(160deg, #ffffff, #edf2ee);
  border: 1px solid var(--line-strong);
  border-radius: 14px;
  padding: 14px;
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 4px;
  box-shadow: var(--shadow-soft);
}
.rp-card-glyph {
  align-self: center;
  border: 2px solid var(--accent);
  border-radius: 5px;
  color: var(--accent-deep);
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 0.54rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  padding: 5px 8px 4px;
  position: relative;
}
.rp-card-glyph::before {
  background: var(--accent);
  content: "";
  height: 3px;
  left: 0;
  position: absolute;
  right: 0;
  top: 4px;
}
.rp-card strong {
  font-size: 0.9rem;
}
.rp-card small {
  color: var(--muted);
  font-size: 0.72rem;
}
.rp-acksbadge {
  border: 1px dashed var(--accent);
  background: var(--accent-soft);
  border-radius: 10px;
  padding: 7px 10px;
  text-align: center;
}
.rp-acksbadge b {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.78rem;
  color: var(--accent-deep);
  display: block;
}
.rp-acksbadge span {
  font-size: 0.64rem;
  color: var(--muted);
}
.rp-prodstatus {
  min-height: 48px;
  font-size: 0.78rem;
  line-height: 1.4;
  color: var(--muted);
  display: flex;
  align-items: flex-start;
}
.rp-prod {
  border-radius: 9px;
  padding: 7px 9px;
  width: 100%;
  border: 1px solid var(--line);
  background: var(--panel);
}
.rp-prod b {
  color: var(--ink);
}
.rp-prod.ok {
  border-color: #9fd5bd;
  background: #edf9f2;
  color: var(--good);
}
.rp-prod.ok b {
  color: var(--good);
}
.rp-prod.wait {
  border-color: var(--line-strong);
  background: var(--accent-soft);
  color: var(--accent-deep);
}
.rp-prod.risk {
  border-color: #e6cb82;
  background: #fff7d8;
  color: var(--warn);
}
.rp-prod.risk b {
  color: var(--warn);
}
.rp-prod.bad {
  border-color: #ecc4b8;
  background: #fff1ec;
  color: var(--bad);
}
.rp-prod.bad b {
  color: var(--bad);
}

/* ------- cluster ------- */
.rp-clustercol {
  justify-content: flex-start;
  min-width: 0;
}
.rp-cluster {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.rp-broker {
  display: grid;
  grid-template-columns: var(--meta-w) 1fr auto;
  align-items: center;
  gap: 12px;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 9px 12px;
  background: var(--panel);
  min-width: 0;
}
.rp-broker.leader {
  border-color: var(--accent);
  background: linear-gradient(100deg, color-mix(in srgb, var(--accent) 8%, #fff), #fff 60%);
  box-shadow: var(--shadow-soft);
}
.rp-broker.down {
  border-style: dashed;
  border-color: var(--line-strong);
  background: repeating-linear-gradient(45deg, #ffffff, #ffffff 8px, #d5f5e6 8px, #d5f5e6 16px);
  opacity: 0.82;
}
.rp-broker-meta {
  display: flex;
  flex-direction: column;
  gap: 3px;
  min-width: 0;
}
.rp-broker-top {
  display: flex;
  align-items: center;
  gap: 7px;
}
.rp-role {
  font-size: 0.6rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 2px 7px;
  border-radius: 999px;
  white-space: nowrap;
  font-family: "JetBrains Mono", monospace;
}
.rp-role.leader {
  background: var(--accent);
  color: #fff;
}
.rp-role.follower {
  background: var(--accent-soft);
  color: var(--accent-deep);
}
.rp-role.down {
  background: #edf0d8;
  color: var(--faint);
}
.rp-broker-name {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--ink);
}
.rp-broker-sub {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.66rem;
  color: var(--faint);
}
.rp-isr {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-weight: 700;
}
.rp-pinner {
  font-weight: 800;
  font-size: 0.62rem;
  color: var(--accent-deep);
  background: var(--accent-soft);
  border-radius: 999px;
  padding: 1px 8px;
}
.rp-behind {
  font-weight: 800;
  font-size: 0.62rem;
  color: var(--warn);
  background: #fff1c8;
  border-radius: 999px;
  padding: 1px 8px;
}
.rp-broker.lagging {
  border-color: var(--warn);
  box-shadow: 0 0 0 2px color-mix(in srgb, var(--warn) 32%, transparent);
}
.rp-resume {
  align-items: center;
  gap: 10px;
}
.rp-resume-note {
  font-size: 0.72rem;
  color: var(--muted);
}
.rp-isr::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--good);
}
.rp-isr.out {
  color: var(--warn);
}
.rp-isr.out::before {
  background: var(--warn);
}
.rp-isr.down {
  color: var(--faint);
}
.rp-isr.down::before {
  background: var(--faint);
}
.rp-laginfo {
  font-variant-numeric: tabular-nums;
}

/* orientation chapter: a broker hosting many partitions (orders-7 highlighted) */
.rp-host {
  display: flex;
  flex-direction: column;
  gap: 5px;
  min-width: 0;
}
.rp-other,
.rp-this {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
}
.rp-other {
  opacity: 0.4;
}
.rp-pname {
  flex: 0 0 72px;
  width: 72px;
  text-align: right;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.62rem;
  color: var(--faint);
  white-space: nowrap;
}
.rp-this .rp-pname {
  color: var(--accent-deep);
  font-weight: 700;
}
.rp-this .rp-log {
  flex: 1;
}
.rp-pbar {
  flex: 1;
  height: 12px;
  border-radius: 4px;
  background: repeating-linear-gradient(
    90deg,
    var(--line-strong) 0 var(--cell),
    transparent var(--cell) calc(var(--cell) + var(--cell-gap))
  );
}

.rp-log {
  display: flex;
  align-items: center;
  gap: var(--cell-gap);
  min-width: 0;
  overflow: hidden;
}
.rp-more {
  font-size: 0.6rem;
  font-weight: 700;
  color: var(--faint);
  font-family: "JetBrains Mono", monospace;
  flex: none;
  margin-right: 2px;
}
.rp-cell {
  width: var(--cell);
  height: 30px;
  flex: none;
  border-radius: 5px;
  display: grid;
  place-items: center;
  font-size: 0.6rem;
  font-weight: 700;
  font-style: normal;
  font-family: "JetBrains Mono", monospace;
  font-variant-numeric: tabular-nums;
  border: 1.5px solid transparent;
  position: relative;
}
.rp-cell.committed {
  background: var(--accent);
  color: #fff;
  box-shadow: inset 0 -4px 0 rgba(0, 0, 0, 0.16);
}
.rp-cell.pending {
  background: var(--accent-soft);
  color: var(--accent-deep);
  border-color: var(--line-strong);
}
.rp-cell.risk {
  background: #fff1c8;
  color: var(--warn);
  border-color: #dfc06d;
  border-style: dashed;
}
.rp-cell.ghost {
  background: repeating-linear-gradient(45deg, #ffffff, #ffffff 4px, #d5f5e6 4px, #d5f5e6 8px);
  color: transparent;
  border-color: var(--line);
  border-style: dashed;
}
.rp-cell.doomed {
  background: #fbe3e0;
  color: var(--bad);
  border-color: var(--bad);
  text-decoration: line-through;
  animation: rpDoom 0.6s ease-in-out infinite;
}
@keyframes rpDoom {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.45; }
}
.rp-cell.edge::after {
  content: "";
  position: absolute;
  right: calc(-1px - var(--cell-gap) / 2);
  top: -7px;
  bottom: -7px;
  width: 2px;
  background: var(--ink);
  border-radius: 2px;
}
.rp-cell.fresh-in {
  animation: rpPop 0.34s cubic-bezier(0.2, 0.8, 0.3, 1);
}
.rp-log-empty {
  font-size: 0.7rem;
  color: var(--faint);
}

.rp-broker-act {
  display: flex;
  gap: 6px;
  flex: none;
}
.rp-op {
  border: 1px solid var(--line-strong);
  background: var(--panel);
  border-radius: 8px;
  padding: 4px 9px;
  font-size: 0.68rem;
  font-weight: 600;
  color: var(--muted);
  white-space: nowrap;
}
.rp-op:hover:not(:disabled) {
  border-color: var(--accent);
  color: var(--accent-deep);
}
.rp-op.danger {
  border-color: #e6b9ad;
  color: var(--bad);
}
.rp-op.danger:hover:not(:disabled) {
  background: #fdf1ed;
  border-color: var(--bad);
}
.rp-op.on {
  background: var(--warn);
  border-color: var(--warn);
  color: #fff;
}

/* ------- consumer strip + hwm ------- */
.rp-consumer {
  margin-top: 4px;
  border-top: 1px dashed var(--line-strong);
  padding-top: 10px;
  display: flex;
  flex-direction: column;
  gap: 5px;
}
.rp-consumer-row {
  display: grid;
  grid-template-columns: var(--meta-w) 1fr auto;
  align-items: center;
  gap: 12px;
}
.rp-consumer-label {
  font-size: 0.66rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--bronze-deep);
  padding-left: 12px;
}
.rp-consumer-track {
  display: flex;
  align-items: center;
  gap: var(--cell-gap);
  overflow: hidden;
}
.rp-consumer-track .rp-cell.committed {
  background: var(--bronze);
  box-shadow: inset 0 -4px 0 rgba(0, 0, 0, 0.14);
}
.rp-consumer-track .rp-cell.hidden-cell {
  background: var(--panel);
  border-color: var(--line);
  border-style: dashed;
  color: var(--faint);
}
.rp-consumer-note {
  margin: 0;
  font-size: 0.72rem;
  color: var(--muted);
  padding-left: 12px;
  line-height: 1.45;
}
.rp-consumer-note b {
  color: var(--ink);
}

.rp-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 6px;
  padding-top: 8px;
}
.rp-legend span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.66rem;
  color: var(--muted);
}
.rp-legend i {
  width: 13px;
  height: 13px;
  border-radius: 3px;
  border: 1.5px solid transparent;
  font-style: normal;
}
.rp-legend i.committed {
  background: var(--accent);
}
.rp-legend i.pending {
  background: var(--accent-soft);
  border-color: var(--line-strong);
}
.rp-legend i.risk {
  background: #fff1c8;
  border-color: #dfc06d;
  border-style: dashed;
}
.rp-legend i.ghost {
  background: #d5f5e6;
  border-color: var(--line);
  border-style: dashed;
}
.rp-legend i.hwm {
  width: 2px;
  height: 15px;
  background: var(--ink);
  border-radius: 2px;
}

/* ------------------------------------------------------------- deck */
.rp-deck {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 16px;
  align-items: start;
}

/* ---- closing recap (last chapter) ---- */
/* a class-level display would otherwise override the [hidden] attribute */
.rp-stage[hidden],
.rp-deck[hidden],
.rp-recap[hidden] {
  display: none !important;
}
.rp-recap {
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.rp-recap-intro {
  margin: 0;
  color: var(--muted);
  font-size: 0.86rem;
  line-height: 1.5;
}
.rp-map {
  margin: 2px 0 14px;
  padding-left: 20px;
  display: grid;
  gap: 7px;
  font-size: 0.9rem;
  line-height: 1.45;
  color: var(--ink);
}
.rp-map b {
  color: var(--accent-deep);
}
.rp-map code {
  background: #d5f5e6;
  border: 1px solid var(--line);
  border-radius: 5px;
  padding: 1px 5px;
  font-size: 0.82em;
}
.rp-matrix-wrap {
  overflow-x: auto;
}
.rp-matrix {
  width: 100%;
  min-width: 560px;
  border-collapse: collapse;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-soft);
  font-size: 0.82rem;
}
.rp-matrix th,
.rp-matrix td {
  text-align: left;
  padding: 11px 14px;
  border-bottom: 1px solid var(--line);
  border-right: 1px solid var(--line);
  vertical-align: top;
}
.rp-matrix thead th {
  background: var(--rail);
  color: #eef4ef;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.rp-matrix thead th:first-child {
  background: var(--accent-deep);
}
.rp-matrix tbody th {
  background: var(--accent-soft);
  color: var(--accent-deep);
  font-weight: 700;
}
.rp-matrix tbody tr:last-child th,
.rp-matrix tbody tr:last-child td {
  border-bottom: none;
}
.rp-matrix th:last-child,
.rp-matrix td:last-child {
  border-right: none;
}
.rp-matrix code {
  background: #d5f5e6;
  border: 1px solid var(--line);
  border-radius: 5px;
  padding: 1px 5px;
  font-size: 0.78em;
}
.rp-matrix em {
  color: var(--muted);
  font-style: italic;
}
.rp-tradeoff {
  background: linear-gradient(180deg, var(--panel), #ffffff);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
  padding: 18px 20px;
}
.rp-tradeoff-head h3 {
  margin: 0 0 4px;
  color: var(--accent-deep);
  font-size: 1rem;
}
.rp-tradeoff-head p {
  margin: 0 0 14px;
  color: var(--muted);
  font-size: 0.86rem;
}
.rp-pick {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 12px;
}
.rp-pick-chip {
  background: var(--accent);
  color: #fff;
  font-weight: 700;
  font-size: 0.82rem;
  padding: 6px 14px;
  border-radius: 999px;
}
.rp-pick-plus {
  color: var(--faint);
  font-weight: 700;
}
.rp-pick-eq {
  color: var(--accent-deep);
  font-weight: 700;
  font-size: 0.86rem;
  margin-left: 4px;
}
.rp-recap-close {
  margin: 0;
  color: var(--ink);
  font-size: 0.9rem;
  line-height: 1.55;
}
.rp-recap-close em {
  font-style: normal;
  font-weight: 700;
  color: var(--accent-deep);
}
.rp-controls-card {
  background: linear-gradient(180deg, rgba(255, 254, 246, 0.96), #ffffff);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
  padding: 16px 18px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.rp-controls {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.rp-control-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}
.rp-btn {
  border: 1px solid var(--line-strong);
  background: var(--panel);
  border-radius: 10px;
  padding: 8px 14px;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--ink);
  display: inline-flex;
  align-items: center;
  gap: 7px;
  transition: background 0.15s, border-color 0.15s, transform 0.08s;
}
.rp-btn:hover:not(:disabled) {
  border-color: var(--accent);
  background: var(--accent-soft);
}
.rp-btn:active:not(:disabled) {
  transform: translateY(1px);
}
.rp-btn.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}
.rp-btn.primary:hover:not(:disabled) {
  background: var(--accent-deep);
}
.rp-btn.danger {
  border-color: #e6b9ad;
  color: var(--bad);
}
.rp-btn.danger:hover:not(:disabled) {
  background: #fdf1ed;
  border-color: var(--bad);
}
.rp-btn.on {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.rp-transport {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  padding: 10px 12px;
  background: linear-gradient(135deg, var(--rail), var(--rail-deep));
  border-radius: 12px;
}
.rp-transport .rp-btn {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.16);
  color: #eef4ef;
}
.rp-transport .rp-btn:hover:not(:disabled) {
  background: rgba(255, 255, 255, 0.16);
  border-color: var(--accent);
}
.rp-transport .rp-btn.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}
.rp-transport .rp-btn.on {
  background: var(--bad);
  border-color: var(--bad);
  color: #fff;
}
.rp-speeddial {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: auto;
}
.rp-speed-btn {
  width: 32px;
  padding: 6px 0;
  justify-content: center;
  font-size: 1rem;
  font-weight: 700;
}
.rp-speed-readout {
  display: flex;
  flex-direction: column;
  align-items: center;
  min-width: 52px;
  line-height: 1.05;
}
.rp-speed-readout small {
  font-size: 0.58rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #a7b5ad;
}
.rp-speed-readout b {
  color: #eef4ef;
  font-variant-numeric: tabular-nums;
  font-size: 0.92rem;
}

.rp-keychips {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
}
.rp-keychip {
  border: 1px solid var(--line-strong);
  background: var(--panel);
  border-radius: 999px;
  padding: 4px 12px;
  font-size: 0.74rem;
  font-family: "JetBrains Mono", monospace;
  font-weight: 600;
  color: var(--muted);
}
.rp-keychip:hover:not(:disabled) {
  border-color: var(--accent);
}
.rp-keychip.on {
  border-color: var(--accent);
  background: var(--accent-soft);
  color: var(--accent-deep);
}
.rp-chiplabel {
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--faint);
  margin-right: 2px;
}

.rp-sliders {
  gap: 22px;
}
.rp-slider {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 170px;
  flex: 1;
  max-width: 260px;
}
.rp-slider-head {
  display: flex;
  justify-content: space-between;
  font-size: 0.76rem;
  font-weight: 600;
  color: var(--muted);
}
.rp-slider-head b {
  color: var(--ink);
  font-variant-numeric: tabular-nums;
}
.rp-slider input[type="range"] {
  width: 100%;
  accent-color: var(--accent);
}
.rp-control-note {
  font-size: 0.76rem;
  color: var(--muted);
  line-height: 1.5;
  margin: 0;
}

/* ------- event narration ------- */
.rp-event {
  border: 1px solid var(--line-strong);
  border-left: 4px solid var(--blue);
  background: linear-gradient(180deg, #eef7fb, #fbfefd);
  border-radius: 12px;
  padding: 12px 14px;
  display: flex;
  flex-direction: column;
  gap: 7px;
  animation: rpRise 0.22s cubic-bezier(0.2, 0.8, 0.3, 1);
}
.rp-event-head {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
.rp-event-badge {
  background: var(--blue);
  color: #fff;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  padding: 3px 9px;
  border-radius: 999px;
  white-space: nowrap;
}
.rp-event-head strong {
  font-size: 0.86rem;
}
.rp-event-note {
  margin: 0;
  font-size: 0.78rem;
  color: var(--ink);
  line-height: 1.45;
}
.rp-event.warn {
  border-color: #e6cb82;
  border-left-color: var(--warn);
  background: linear-gradient(180deg, #fff7d8, #fffdf4);
}
.rp-event.warn .rp-event-badge {
  background: var(--warn);
}
.rp-event.bad {
  border-color: #ecc4b8;
  border-left-color: var(--bad);
  background: linear-gradient(180deg, #fff1ec, #fffaf8);
}
.rp-event.bad .rp-event-badge {
  background: var(--bad);
}
.rp-event.good {
  border-color: #9fd5bd;
  border-left-color: var(--good);
  background: linear-gradient(180deg, #edf9f2, #fbfffd);
}
.rp-event.good .rp-event-badge {
  background: var(--good);
}
.rp-event.accent {
  border-left-color: var(--accent);
  background: linear-gradient(180deg, #edf2ee, #fffef8);
}
.rp-event.accent .rp-event-badge {
  background: var(--accent);
}

/* ------- explainer ------- */
.rp-explainer {
  background: linear-gradient(165deg, #ffffff, #edf2ee);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
  padding: 16px 18px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.rp-explainer h3 {
  margin: 0;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent-deep);
}
.rp-explainer ul {
  margin: 0;
  padding-left: 18px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.rp-explainer li {
  font-size: 0.86rem;
  line-height: 1.5;
  color: var(--ink);
}
.rp-keyidea {
  background: linear-gradient(145deg, var(--rail), var(--rail-deep));
  color: #eef4ef;
  border-radius: 11px;
  padding: 11px 13px;
  font-size: 0.82rem;
  line-height: 1.5;
}
.rp-keyidea b {
  color: #7be3b4;
}
.rp-callout {
  font-size: 0.82rem;
  color: var(--ink);
  background: #fbfce9;
  border: 1px solid #a7ddc4;
  border-left: 4px solid var(--accent);
  border-radius: 10px;
  padding: 10px 12px;
  line-height: 1.5;
}
.rp-callout b {
  color: var(--accent-deep);
}
.rp-try {
  font-size: 0.82rem;
  color: var(--ink);
  background: var(--accent-soft);
  border: 1px dashed var(--accent);
  border-radius: 11px;
  padding: 10px 12px;
  line-height: 1.5;
}
.rp-try b {
  color: var(--accent-deep);
}

/* ------------------------------------------------------------- foot */
.rp-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.rp-nav {
  border: 1px solid var(--line-strong);
  background: var(--panel);
  border-radius: 11px;
  padding: 10px 18px;
  font-weight: 600;
  font-size: 0.88rem;
  color: var(--ink);
}
.rp-nav:hover:not(:disabled) {
  border-color: var(--accent);
}
.rp-nav-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}
.rp-nav-primary:hover {
  background: var(--accent-deep);
}
.rp-progress {
  display: flex;
  gap: 7px;
}
.rp-pdot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--line-strong);
  cursor: pointer;
  transition: background 0.15s, transform 0.15s;
}
.rp-pdot.active {
  background: var(--accent);
  transform: scale(1.3);
}
.rp-pdot.done {
  background: var(--accent-deep);
}

/* ----------------------------------------------------- animations */
@keyframes rpPop {
  from {
    transform: scale(0.4);
    opacity: 0;
  }
  to {
    transform: scale(1);
    opacity: 1;
  }
}
@keyframes rpRise {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 1080px) {
  .rp-shell {
    grid-template-columns: 1fr;
  }
  .rp-rail {
    position: static;
    height: auto;
  }
  .rp-chapters {
    flex-direction: row;
    overflow-x: auto;
  }
  .rp-chapter {
    flex: none;
  }
  .rp-deck {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 900px) {
  .rp-rail {
    gap: 16px;
    padding: 16px 14px;
  }
  .rp-rail-foot {
    display: none;
  }
  .rp-main {
    gap: 14px;
    padding: 18px 14px 24px;
  }
  .rp-head {
    flex-direction: column;
    gap: 14px;
  }
  .rp-head h1 {
    font-size: 1.5rem;
  }
  .rp-head-stats {
    max-width: 100%;
    overflow-x: auto;
    padding-bottom: 4px;
    width: 100%;
  }
  .rp-stat {
    flex: 1 0 64px;
  }
  .rp-stage {
    grid-template-columns: minmax(0, 1fr);
    min-height: 0;
    padding: 16px;
    gap: 16px;
  }
  .rp-broker {
    grid-template-columns: 1fr;
    gap: 8px;
  }
  .rp-broker-act {
    justify-content: flex-start;
  }
  .rp-consumer-row {
    grid-template-columns: 1fr;
    gap: 6px;
  }
  .rp-consumer-label,
  .rp-consumer-note {
    padding-left: 0;
  }
  .rp-log,
  .rp-consumer-track {
    overflow-x: auto;
  }
  .rp-controls-card,
  .rp-explainer {
    padding: 14px;
  }
  .rp-transport {
    align-items: stretch;
    flex-direction: column;
  }
  .rp-speeddial {
    margin-left: 0;
  }
  .rp-speed-readout {
    flex: 1;
  }
  .rp-foot {
    gap: 10px;
  }
  .rp-nav {
    padding: 9px 12px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .rp-cell.fresh-in,
  .rp-cell.doomed,
  .rp-event {
    animation: none !important;
    transition: none !important;
  }
}