:root {
  --ink: #19211f;
  --ink-soft: #5f6965;
  --paper: #f4f1e9;
  --panel: #fbfaf6;
  --line: #d8d4c9;
  --line-strong: #aca89d;
  --accent: #e4522f;
  --shadow: 0 10px 35px rgba(31, 37, 34, 0.06);
  --reader-font-size: 14px;
}

* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
}

body {
  margin: 0;
  overflow: hidden;
  color: var(--ink);
  background:
    radial-gradient(circle at 12% -10%, rgba(228, 82, 47, 0.08), transparent 32rem),
    var(--paper);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

button {
  font: inherit;
}

.reader-shell {
  display: grid;
  grid-template-rows: 64px minmax(0, 1fr) 72px;
  gap: 10px;
  height: 100dvh;
  padding: 12px;
}

.app-header {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 0 8px;
}

.brand-lockup {
  display: flex;
  align-items: center;
  gap: 11px;
}

.brand-mark {
  width: 9px;
  height: 37px;
  border-radius: 9px;
  background: var(--accent);
  transform: skewY(-12deg);
}

.eyebrow,
.panel-index {
  margin: 0 0 3px;
  color: var(--ink-soft);
  font-size: 9px;
  font-weight: 750;
  letter-spacing: 0.15em;
}

h1 {
  margin: 0;
  /* font-family: Georgia, serif; */
  font-size: 25px;
  line-height: 1;
  font-weight: 500;
}

.header-note {
  margin: 0;
  color: var(--ink-soft);
  /* font-family: Georgia, serif; */
  font-size: 14px;
  font-style: italic;
}

.reader-size-control {
  display: flex;
  align-items: center;
  gap: 7px;
  margin-left: auto;
  color: var(--ink-soft);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.reader-size-label {
  white-space: nowrap;
}

.reader-size-small {
  /* font-family: Georgia, serif; */
  font-size: 10px;
  text-transform: none;
}

.reader-size-large {
  /* font-family: Georgia, serif; */
  font-size: 16px;
  line-height: 1;
  text-transform: none;
}

.reader-size-control input[type="range"] {
  width: 90px;
  height: 3px;
  margin: 0;
  accent-color: var(--accent);
  cursor: pointer;
}

.reader-size-control output {
  width: 16px;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
  text-align: right;
}

.connection-status {
  display: flex;
  align-items: center;
  gap: 7px;
  margin-left: 2px;
  color: var(--ink-soft);
  font-size: 10px;
  font-weight: 650;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.status-dot,
.activity-pulse {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #4c8a6c;
  box-shadow: 0 0 0 3px rgba(76, 138, 108, 0.12);
}

.workspace {
  display: grid;
  grid-template-columns: minmax(150px, 0.56fr) repeat(3, minmax(250px, 1fr));
  gap: 10px;
  min-height: 0;
}

.panel {
  min-width: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: var(--shadow);
}

.panel-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  padding: 17px 18px 14px;
  border-bottom: 1px solid var(--line);
  background: rgba(251, 250, 246, 0.96);
}

.panel-heading h2 {
  margin: 0;
  /* font-family: Georgia, "Times New Roman", serif; */
  font-size: 17px;
  font-weight: 500;
  line-height: 1.15;
}

.sticky-heading {
  position: sticky;
  top: 0;
  z-index: 5;
}

.source-panel,
.output-panel {
  overflow-y: auto;
  scrollbar-color: #c5c1b7 transparent;
}

.category-rail {
  display: flex;
  min-height: 0;
  flex-direction: column;
}

.rail-heading {
  flex: none;
}

.category-count,
.document-meta {
  color: var(--ink-soft);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.rail-instruction {
  margin: 4px 4px 4px 14px;
  color: var(--ink-soft);
  /* font-family: Georgia, serif; */
  font-size: 12px;
  font-style: italic;
  line-height: 1.15;
}

.focus-mode-toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin: 4px 10px 7px;
  padding: 7px 9px;
  border: 1px solid var(--line);
  border-radius: 4px;
  color: var(--ink-soft);
  background: transparent;
  cursor: pointer;
  font-size: 10px;
  font-weight: 750;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.focus-mode-toggle:hover,
.focus-mode-toggle:focus-visible {
  border-color: var(--ink);
  color: var(--ink);
  background: #fff;
  outline: none;
}

.focus-mode-toggle[aria-pressed="true"] {
  border-color: color-mix(in srgb, var(--accent) 70%, var(--line));
  color: var(--ink);
  background: color-mix(in srgb, var(--accent) 9%, white);
}

.focus-mode-state {
  min-width: 23px;
  color: var(--accent);
  text-align: right;
}

.selection-area {
  margin: 0 10px 7px;
  border: 1px solid var(--line);
  border-radius: 4px;
  color: var(--ink-soft);
}

.selection-area summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 7px 9px;
  cursor: pointer;
  font-size: 10px;
  font-weight: 750;
  letter-spacing: 0.06em;
  list-style: none;
  text-transform: uppercase;
}

.selection-area summary::-webkit-details-marker {
  display: none;
}

.selection-area summary::after {
  color: var(--accent);
  content: "+";
  font-size: 13px;
  line-height: 1;
}

.selection-area[open] summary {
  border-bottom: 1px solid var(--line);
  color: var(--ink);
}

.selection-area[open] summary::after {
  content: "−";
}

.selection-area summary:hover,
.selection-area summary:focus-visible {
  color: var(--ink);
  background: #fff;
  outline: none;
}

.selection-controls {
  display: grid;
  gap: 7px;
  padding: 8px;
}

.selection-source-toggle {
  display: grid;
  grid-template-columns: 1fr 1fr 0.8fr;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 4px;
}

.selection-source-button {
  padding: 6px 5px;
  border: 0;
  color: var(--ink-soft);
  background: transparent;
  cursor: pointer;
  font-size: 10px;
  font-weight: 750;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.selection-source-button+.selection-source-button {
  border-left: 1px solid var(--line);
}

.selection-source-button:hover,
.selection-source-button:focus-visible {
  color: var(--ink);
  background: #fff;
  outline: none;
}

.selection-source-button[aria-pressed="true"] {
  color: var(--ink);
  background: #e7e8e4;
}

.selection-action-row {
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr);
  gap: 7px;
  width: 100%;
}

.selection-action-row input {
  width: 100%;
  box-sizing: border-box;
  padding: 5px 6px;
  border: 1px solid var(--line-strong);
  border-radius: 4px;
  color: var(--ink);
  background: #fff;
  font-size: 12px;
  font-weight: 750;
  font-variant-numeric: tabular-nums;
  text-align: center;
}

.selection-action-row input:focus {
  border-color: var(--ink);
  outline: none;
}

.selection-action-button {
  width: 100%;
}

.category-list {
  display: flex;
  flex-direction: column;
  gap: 5px;
  overflow-y: auto;
  padding: 5px 9px 12px;
}

.category-button {
  --category-color: #ddd;
  position: relative;
  width: 100%;
  padding: 10px 9px 10px 16px;
  overflow: hidden;
  border: 1px solid transparent;
  border-radius: 5px;
  color: var(--ink);
  background: transparent;
  cursor: pointer;
  text-align: left;
  transition: background 140ms ease, border-color 140ms ease, transform 140ms ease;
}

.category-button::before {
  position: absolute;
  inset: 7px auto 7px 5px;
  width: 4px;
  border-radius: 6px;
  background: var(--category-color);
  content: "";
}

.category-button:hover,
.category-button:focus-visible {
  background: color-mix(in srgb, var(--category-color) 16%, white);
  outline: none;
}

.category-button[aria-pressed="true"] {
  border-color: color-mix(in srgb, var(--category-color) 65%, #777);
  background: color-mix(in srgb, var(--category-color) 22%, white);
}

.category-name {
  display: block;
  font-size: 12px;
  font-weight: 700;
}

.category-total {
  display: block;
  margin-top: 2px;
  color: var(--ink-soft);
  font-size: 9px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.rail-actions {
  display: grid;
  gap: 5px;
  margin-top: auto;
  padding: 10px;
  border-top: 1px solid var(--line);
}

.text-button {
  padding: 6px 8px;
  border: 1px solid var(--line-strong);
  border-radius: 4px;
  color: var(--ink);
  background: transparent;
  cursor: pointer;
  font-size: 9px;
  font-weight: 750;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.text-button:hover:not(:disabled) {
  border-color: var(--ink);
  background: #fff;
}

.text-button.muted {
  border-color: transparent;
  color: var(--ink-soft);
}

.text-button:disabled {
  cursor: default;
  opacity: 0.35;
}

.document-body {
  counter-reset: paragraph;
  padding: 8px 18px 64px;
}

.source-paragraph {
  position: relative;
  margin: 0;
  padding: 11px 4px 11px 39px;
  border-bottom: 1px solid rgba(216, 212, 201, 0.5);
  background-color: transparent;
  /* font-family: Georgia, "Times New Roman", serif; */
  font-size: var(--reader-font-size);
  line-height: 1.68;
  transition: background-color 160ms ease, background-image 160ms ease;
}

.paragraph-selector {
  position: absolute;
  left: 3px;
  top: 9px;
  display: grid;
  place-items: center;
  width: 28px;
  height: 28px;
  padding: 0;
  border: 1px solid transparent;
  border-radius: 4px;
  color: #8d918c;
  background: transparent;
  cursor: pointer;
  font-family: Inter, sans-serif;
  font-size: 10px;
  font-weight: 750;
  letter-spacing: 0.04em;
  line-height: 1;
}

.paragraph-selector:hover,
.paragraph-selector:focus-visible {
  border-color: #b9bbb6;
  color: var(--ink);
  background: #ecece8;
  outline: none;
}

.paragraph-selector[aria-pressed="true"] {
  border-color: #a7aaa5;
  color: var(--ink);
  background: #d5d7d2;
}

.source-paragraph.selected {
  background-color: #e7e8e4;
}

.source-paragraph.has-evidence {
  cursor: default;
}

.source-paragraph.highlighted {
  background: var(--highlight-background);
}

.source-paragraph.highlighted::after {
  position: absolute;
  inset: 0 auto 0 0;
  width: 3px;
  background: var(--highlight-bar);
  content: "";
}

.source-paragraph.focused {
  animation: evidence-flash 1.25s ease;
}

@keyframes evidence-flash {

  0%,
  100% {
    outline: 0 solid transparent;
  }

  35% {
    outline: 4px solid color-mix(in srgb, var(--highlight-color, var(--accent)) 35%, transparent);
    outline-offset: 2px;
  }
}

.evidence-tooltip {
  position: fixed;
  z-index: 50;
  width: min(265px, calc(100vw - 24px));
  padding: 12px 13px;
  border: 1px solid #313835;
  border-radius: 6px;
  color: #f7f5ef;
  background: #202725;
  box-shadow: 0 10px 30px rgba(0, 0, 0, .2);
  pointer-events: none;
  font-size: 11px;
  line-height: 1.45;
}

.tooltip-category {
  display: flex;
  align-items: center;
  gap: 7px;
  margin-bottom: 5px;
  font-size: 9px;
  font-weight: 800;
  letter-spacing: .1em;
  text-transform: uppercase;
}

.tooltip-swatch {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--tooltip-color);
}

.tooltip-copy {
  margin: 0;
  color: #dedfd9;
  /* font-family: Georgia, serif; */
  font-size: 12px;
}

.output-body {
  padding: 14px 15px 60px;
}

.empty-state {
  display: grid;
  place-items: center;
  min-height: 270px;
  padding: 30px;
  color: var(--ink-soft);
  text-align: center;
}

.empty-state p {
  max-width: 190px;
  margin: 10px 0 0;
  font-family: Georgia, serif;
  font-size: 13px;
  font-style: italic;
  line-height: 1.5;
}

.empty-glyph {
  color: var(--accent);
  /* font-family: Georgia, serif; */
  font-size: 28px;
}

.output-item {
  --item-color: #ddd;
  position: relative;
  padding: 14px 8px 15px 15px;
  border-bottom: 1px solid var(--line);
}

.output-item::before {
  position: absolute;
  inset: 17px auto 17px 1px;
  width: 3px;
  border-radius: 4px;
  background: var(--item-color);
  content: "";
}

.output-item-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 7px;
}

.output-category {
  margin: 0;
  color: var(--ink-soft);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: .13em;
  text-transform: uppercase;
}

.output-remove {
  display: grid;
  flex: none;
  place-items: center;
  width: 19px;
  height: 19px;
  padding: 0;
  border: 1px solid transparent;
  border-radius: 3px;
  color: var(--ink-soft);
  background: transparent;
  cursor: pointer;
  font-family: Arial, sans-serif;
  font-size: 16px;
  line-height: 1;
}

.output-remove:hover,
.output-remove:focus-visible {
  border-color: var(--line-strong);
  color: var(--ink);
  background: #fff;
  outline: none;
}

.output-quote {
  margin: 0;
  /* font-family: Georgia, serif; */
  font-size: var(--reader-font-size);
  line-height: 1.55;
}

.output-provenance {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  margin-top: 9px;
  color: var(--ink-soft);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: .07em;
  text-transform: uppercase;
}

.output-heading {
  display: grid;
  grid-template: "index actions" auto "title order" auto / minmax(0, 1fr) auto;
  align-items: center;
  gap: 3px 12px;
}

.output-heading .panel-index {
  grid-area: index;
  margin-bottom: 0;
}

.output-heading h2 {
  grid-area: title;
}

.output-actions {
  grid-area: actions;
  display: flex;
  align-items: center;
  gap: 2px;
}

.output-actions .text-button {
  padding: 0 3px;
  line-height: 1.15;
}

.output-order-toggle {
  grid-area: order;
  display: inline-grid;
  grid-template-columns: 1fr 1fr;
  min-width: 112px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 4px;
}

.output-order-button {
  min-height: 16px;
  padding: 3px 7px;
  border: 0;
  color: var(--ink-soft);
  background: transparent;
  cursor: pointer;
  font-size: 8px;
  font-weight: 750;
  letter-spacing: .06em;
  text-transform: uppercase;
}

.output-order-button+.output-order-button {
  border-left: 1px solid var(--line);
}

.output-order-button:hover,
.output-order-button:focus-visible {
  color: var(--ink);
  background: #fff;
  outline: none;
}

.output-order-button[aria-pressed="true"] {
  color: var(--ink);
  background: #e7e8e4;
}

.source-link {
  padding: 0;
  border: 0;
  border-bottom: 1px solid currentColor;
  color: var(--ink-soft);
  background: transparent;
  cursor: pointer;
  font-size: inherit;
  font-weight: inherit;
  letter-spacing: inherit;
  text-transform: inherit;
}

.source-link:hover,
.source-link:focus-visible {
  color: var(--ink);
  outline: none;
}

.tooltip-entry+.tooltip-entry {
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px solid rgba(255, 255, 255, .16);
}

.activity-strip {
  display: grid;
  grid-template-columns: 150px 1fr;
  gap: 12px;
  min-height: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #202725;
  color: #eef0e9;
  box-shadow: var(--shadow);
}

.activity-label {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 0 16px;
  border-right: 1px solid rgba(255, 255, 255, .12);
}

.activity-label h2 {
  margin: 0;
  font-size: 9px;
  letter-spacing: .11em;
  text-transform: uppercase;
}

.activity-pulse {
  background: #e86a49;
  box-shadow: 0 0 0 3px rgba(232, 106, 73, .16);
}

.activity-strip ol {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 3px;
  min-width: 0;
  margin: 0;
  padding: 8px 16px 8px 22px;
  overflow-y: auto;
  color: #b9c0bc;
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  font-size: 9px;
  line-height: 1.35;
}

.activity-strip li::marker {
  color: #66716c;
}

.activity-strip li:last-child {
  color: #fff;
}

@media (max-width: 1000px) {
  body {
    overflow: auto;
  }

  .reader-shell {
    display: block;
    height: auto;
    min-height: 100dvh;
    padding: 10px;
  }

  .app-header {
    height: 64px;
  }

  .workspace {
    grid-template-columns: 150px repeat(3, minmax(300px, 1fr));
    overflow-x: auto;
    min-height: 660px;
  }

  .panel {
    height: 660px;
  }

  .activity-strip {
    height: 72px;
    margin-top: 10px;
  }
}

@media (max-width: 760px) {

  .reader-size-label,
  .reader-size-small,
  .reader-size-large,
  .reader-size-control output {
    display: none;
  }

  .reader-size-control input[type="range"] {
    width: 72px;
  }
}

@media (max-width: 600px) {
  .header-note {
    display: none;
  }

  .workspace {
    display: flex;
    flex-direction: column;
    overflow: visible;
  }

  .panel,
  .category-rail {
    width: 100%;
    height: min(68vh, 600px);
  }

  .category-rail {
    height: auto;
  }

  .category-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
  }

  .activity-strip {
    grid-template-columns: 118px 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}