:root {
  --ink: #14191e;
  --paper: #f2f5f3;
  --surface: #ffffff;
  --rail-blue: #174ea6;
  --rail-blue-line: #7ca0d8;
  --muted-ink: #56616a;
  --divider: #c8d0d3;
  --table-header: #e6eceb;
  --selection: #b8d2fb;
  --code-ink: #26323a;
  --placeholder-ink: #65717a;
  --display: "DIN Condensed", "Avenir Next Condensed", "Arial Narrow", sans-serif;
  --body: "Avenir Next", "Helvetica Neue", sans-serif;
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  --topbar-height: 72px;
}

* {
  box-sizing: border-box;
}

html {
  min-width: 320px;
  background: var(--paper);
  color: var(--ink);
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--body);
  font-size: 16px;
  line-height: 1.55;
}

button,
input {
  font: inherit;
}

button,
a,
input {
  -webkit-tap-highlight-color: transparent;
}

button {
  color: inherit;
}

a {
  color: inherit;
  text-underline-offset: 0.2em;
}

::selection {
  background: var(--selection);
}

:focus-visible {
  outline: 3px solid var(--rail-blue);
  outline-offset: 3px;
}

[hidden] {
  display: none;
}

.skip-link {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 100;
  transform: translateY(-180%);
  background: var(--ink);
  color: var(--surface);
  padding: 12px 16px;
  border: 1px solid var(--surface);
}

.skip-link:focus {
  transform: translateY(0);
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  min-height: var(--topbar-height);
  display: grid;
  grid-template-columns: minmax(280px, 1fr) auto auto;
  align-items: center;
  gap: 28px;
  padding: 10px 24px;
  background: var(--ink);
  color: var(--surface);
  border-bottom: 1px solid var(--ink);
}

.topbar__identity {
  min-width: 0;
  display: flex;
  align-items: center;
  gap: 12px;
}

.identity-mark {
  display: grid;
  width: 44px;
  height: 44px;
  place-items: center;
  flex: none;
  background: var(--rail-blue);
  border: 1px solid var(--rail-blue-line);
  border-radius: 2px;
  font-family: var(--display);
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.identity-product {
  margin: 0;
  color: var(--divider);
  font-size: 0.7rem;
  font-weight: 650;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.topbar h1 {
  max-width: 24ch;
  margin: 0;
  overflow: hidden;
  font-family: var(--display);
  font-size: clamp(1.35rem, 2.4vw, 2rem);
  font-weight: 700;
  line-height: 0.98;
  letter-spacing: -0.02em;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.topbar__metrics {
  display: flex;
  gap: 22px;
  color: var(--divider);
  font-size: 0.78rem;
  white-space: nowrap;
}

.topbar__metrics strong {
  color: var(--surface);
  font-family: var(--mono);
  font-size: 0.9rem;
  font-variant-numeric: tabular-nums;
}

.source-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}

.source-nav a {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  padding: 0 13px;
  border: 1px solid var(--muted-ink);
  border-radius: 2px;
  color: var(--surface);
  font-size: 0.8rem;
  font-weight: 650;
  text-decoration: none;
}

.source-nav a:hover {
  background: var(--surface);
  color: var(--ink);
}

.control-deck {
  position: sticky;
  top: var(--topbar-height);
  z-index: 18;
  min-height: 58px;
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 7px 24px;
  background: var(--surface);
  border-bottom: 1px solid var(--divider);
}

.view-switch {
  display: flex;
  flex: none;
}

.control,
.step-button {
  min-height: 44px;
  padding: 8px 14px;
  background: var(--surface);
  border: 1px solid var(--divider);
  border-radius: 2px;
  cursor: pointer;
  font-size: 0.82rem;
  font-weight: 650;
}

.view-switch .control + .control {
  margin-left: -1px;
}

.control:hover,
.step-button:hover {
  border-color: var(--ink);
}

.control:disabled,
.step-button:disabled {
  cursor: not-allowed;
  opacity: 0.45;
}

.control.is-active,
.control[aria-pressed="true"] {
  position: relative;
  z-index: 1;
  background: var(--ink);
  border-color: var(--ink);
  color: var(--surface);
}

.search-control,
.jump-control {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--muted-ink);
  font-size: 0.72rem;
  font-weight: 650;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.search-control {
  flex: 1 1 320px;
  max-width: 520px;
}

.search-control input,
.jump-control input {
  min-height: 44px;
  min-width: 0;
  background: var(--surface);
  border: 1px solid var(--divider);
  border-radius: 2px;
  color: var(--ink);
}

.search-control input {
  width: 100%;
  padding: 8px 12px;
}

.jump-control input {
  width: 70px;
  padding: 8px;
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
}

.search-control input::placeholder,
.jump-control input::placeholder {
  color: var(--placeholder-ink);
  text-transform: none;
}

.filter-status {
  min-width: 80px;
  margin: 0 0 0 auto;
  color: var(--muted-ink);
  font-size: 0.78rem;
  text-align: right;
  white-space: nowrap;
}

.replay-layout {
  display: grid;
  grid-template-columns: 228px minmax(540px, 1fr) 296px;
  max-width: 1720px;
  min-height: calc(100vh - 130px);
  margin: 0 auto;
}

.episode-rail,
.episode-dossier {
  align-self: start;
  max-height: calc(100vh - 130px);
  position: sticky;
  top: 130px;
  overflow: auto;
  background: var(--surface);
}

.episode-rail {
  border-right: 1px solid var(--divider);
}

.episode-dossier {
  border-left: 1px solid var(--divider);
}

.rail-heading,
.dossier-heading {
  padding: 18px 20px 14px;
  border-bottom: 1px solid var(--divider);
}

.rail-heading {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
}

.rail-heading h2,
.dossier-heading h2 {
  margin: 0;
  font-family: var(--display);
  font-weight: 700;
  letter-spacing: -0.01em;
}

.rail-heading h2 {
  font-size: 1.45rem;
}

.rail-heading span {
  color: var(--muted-ink);
  font-family: var(--mono);
  font-size: 0.72rem;
}

.episode-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.episode-button {
  width: 100%;
  min-height: 58px;
  display: grid;
  grid-template-columns: 28px 1fr;
  gap: 10px;
  padding: 10px 14px;
  background: var(--surface);
  border: 0;
  border-bottom: 1px solid var(--divider);
  border-radius: 0;
  color: var(--ink);
  cursor: pointer;
  text-align: left;
}

.episode-button:hover {
  background: var(--paper);
}

.episode-button[aria-current="true"] {
  background: var(--rail-blue);
  color: var(--surface);
}

.episode-number {
  font-family: var(--mono);
  font-size: 0.78rem;
  font-variant-numeric: tabular-nums;
}

.episode-copy {
  min-width: 0;
}

.episode-name {
  display: block;
  overflow: hidden;
  font-size: 0.82rem;
  font-weight: 650;
  line-height: 1.25;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.episode-range {
  display: block;
  margin-top: 3px;
  color: var(--muted-ink);
  font-family: var(--mono);
  font-size: 0.68rem;
}

.episode-button[aria-current="true"] .episode-range {
  color: var(--surface);
}

.rail-key {
  display: grid;
  gap: 8px;
  padding: 16px 20px 24px;
  color: var(--muted-ink);
  font-size: 0.72rem;
}

.rail-key span {
  display: flex;
  align-items: center;
  gap: 8px;
}

.key-dot {
  width: 10px;
  height: 10px;
  border: 1px solid var(--ink);
  border-radius: 50%;
}

.key-dot--table {
  background: var(--rail-blue);
  border-color: var(--rail-blue);
}

.key-dot--world {
  background: var(--surface);
}

.reader {
  min-width: 0;
  padding: 26px clamp(18px, 3vw, 48px) 96px;
}

.reader-heading {
  min-height: 74px;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--ink);
}

.reader-heading p,
.dossier-heading p {
  margin: 0 0 4px;
  color: var(--rail-blue);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.reader-heading h2 {
  max-width: 22ch;
  margin: 0;
  font-family: var(--display);
  font-size: clamp(2rem, 4vw, 3.5rem);
  font-weight: 700;
  line-height: 0.95;
  letter-spacing: -0.02em;
  text-wrap: balance;
}

.turn-stepper {
  display: flex;
  align-items: center;
  flex: none;
}

.turn-stepper .step-button + * {
  margin-left: -1px;
}

.turn-stepper span {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  padding: 0 12px;
  border: 1px solid var(--divider);
  background: var(--surface);
  font-family: var(--mono);
  font-size: 0.75rem;
  font-variant-numeric: tabular-nums;
}

.loading-state,
.error-state,
.empty-state {
  margin-top: 24px;
  padding: 32px;
  background: var(--surface);
  border: 1px solid var(--divider);
  border-radius: 2px;
}

.loading-line {
  display: block;
  width: 100%;
  height: 18px;
  margin-bottom: 12px;
  background: var(--table-header);
  animation: load-pulse 1.4s ease-in-out infinite;
}

.loading-line--short {
  width: 62%;
}

.loading-state p,
.error-state p,
.empty-state p {
  margin: 16px 0 0;
  color: var(--muted-ink);
}

.error-state h2,
.empty-state h2 {
  margin: 0;
  font-family: var(--display);
  font-size: 2rem;
}

.error-state .control,
.empty-state .control {
  margin-top: 18px;
}

@keyframes load-pulse {
  0%, 100% { opacity: 0.55; }
  50% { opacity: 1; }
}