:root {
  --bg: #111111;
  --panel: #171717;
  --panel-2: #1e1e1e;
  --border: #343434;
  --text: #f3f3f3;
  --muted: #9c9c9c;
  --accent: #89e089;
  --warning: #ffcc66;
  --selected: #203120;
  --core: #183b18;
  --related: #2f2a14;
  --link: #8bbdff;
  --danger: #ff8f8f;
  --mono: "IBM Plex Mono", "SFMono-Regular", Menlo, Monaco, Consolas, monospace;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: var(--mono);
  font-size: 13px;
  line-height: 1.55;
  overflow: hidden;
}

button,
input,
select,
textarea {
  font: inherit;
}

a {
  color: var(--link);
}

.shell {
  height: 100vh;
  display: grid;
  grid-template-rows: auto auto minmax(0, 1fr);
  gap: 8px;
  padding: 8px;
}

.topbar,
.controls,
.panel,
.topic-item,
.article-item {
  border: 1px solid var(--border);
}

.topbar,
.panel-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.topbar {
  background: var(--panel);
  padding: 12px 14px;
}

.brand-title {
  font-size: 15px;
  font-weight: 700;
}

.brand-subtitle,
.statusline,
.panel-header,
.topic-item-summary,
.topic-item-meta,
.article-meta,
.article-links,
.context-muted,
.field-label,
.meta-list {
  color: var(--muted);
}

.statusline {
  display: flex;
  gap: 16px;
}

.controls {
  background: var(--panel);
  padding: 12px;
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 10px;
}

.control-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.control-group-wide {
  grid-column: span 2;
}

.checkbox-group {
  justify-content: flex-end;
}

.control-group label {
  color: var(--muted);
  text-transform: lowercase;
}

.control-group input,
.control-group select {
  border: 1px solid var(--border);
  background: var(--panel-2);
  color: var(--text);
  padding: 8px 10px;
}

.masked-input-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 8px;
  align-items: stretch;
}

.toggle-secret {
  min-width: 68px;
}

.actions {
  grid-column: span 6;
  display: flex;
  gap: 8px;
}

button {
  border: 1px solid var(--border);
  background: var(--panel-2);
  color: var(--text);
  padding: 8px 12px;
  cursor: pointer;
}

button:hover,
.topic-item:hover,
.article-open:hover {
  border-color: var(--accent);
}

button.secondary {
  color: var(--muted);
}

.workspace {
  display: grid;
  grid-template-columns:
    var(--topics-width, 320px)
    10px
    minmax(0, 1fr)
    10px
    var(--context-width, 420px);
  gap: 8px;
  min-height: 0;
  height: 100%;
  align-items: stretch;
  overflow: hidden;
}

.panel {
  background: var(--panel);
  min-height: 0;
  display: grid;
  grid-template-rows: auto 1fr;
  height: 100%;
}

.panel-header {
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
  text-transform: lowercase;
}

.panel-body {
  padding: 8px;
  min-height: 0;
  height: 100%;
  display: flex;
  flex-direction: column;
}

.topics-scroll {
  flex: 1;
  min-height: 0;
}

.articles-scroll {
  flex: 1;
  min-height: 0;
}

.scroll {
  overflow: auto;
}

.panel-resizer {
  position: relative;
  min-height: 0;
  height: 100%;
  cursor: col-resize;
  background: transparent;
  touch-action: none;
}

.panel-resizer::before {
  content: "";
  position: absolute;
  inset: 0;
  margin: 0 auto;
  width: 2px;
  background: var(--border);
  transition: background 120ms ease;
}

.panel-resizer:hover::before,
.panel-resizer.is-dragging::before,
.panel-resizer:focus-visible::before {
  background: var(--accent);
}

.panel-resizer:focus-visible {
  outline: none;
}

.tabbar {
  display: flex;
  gap: 6px;
  margin-bottom: 8px;
}

.subcontrols {
  display: flex;
  gap: 12px;
  align-items: center;
  margin-bottom: 8px;
  flex-wrap: wrap;
}

.control-inline {
  display: flex;
  align-items: center;
  gap: 8px;
}

.control-inline label {
  color: var(--muted);
}

.control-inline select {
  border: 1px solid var(--border);
  background: var(--panel-2);
  color: var(--text);
  padding: 4px 8px;
}

.tab {
  padding: 6px 10px;
  color: var(--muted);
  background: var(--panel-2);
}

.tab.is-active {
  color: var(--text);
  border-color: var(--accent);
  background: var(--selected);
}

.topic-item {
  width: 100%;
  text-align: left;
  background: var(--panel-2);
  padding: 10px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 8px;
}

.topic-card {
  margin-bottom: 8px;
}

.topic-item.active {
  background: var(--selected);
  border-color: var(--accent);
}

.topic-item-title {
  color: var(--text);
  font-weight: 700;
}

.article-item {
  background: var(--panel-2);
  padding: 10px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 12px;
  margin-bottom: 8px;
}

.article-item.is-selected {
  background: var(--selected);
}

.article-main {
  min-width: 0;
}

.article-open {
  width: 100%;
  text-align: left;
  border: none;
  background: transparent;
  padding: 0;
  color: var(--text);
  font-weight: 700;
}

.article-actions {
  display: flex;
  flex-direction: column;
  gap: 8px;
  align-items: flex-end;
  min-width: 180px;
}

.checkbox-inline {
  display: flex;
  gap: 8px;
  align-items: center;
}

.topic-actions {
  display: flex;
  gap: 8px;
  align-items: center;
  padding: 6px 2px 0;
}

.topic-note,
.article-note {
  border: 1px solid var(--border);
  background: var(--panel);
  color: var(--text);
  padding: 4px 8px;
}

.topic-note {
  flex: 1;
}

.article-note {
  width: 180px;
}

.article-role {
  min-width: 92px;
  border: 1px solid var(--border);
  background: var(--panel);
  color: var(--text);
  padding: 4px 8px;
}

.role-core {
  color: var(--accent);
}

.role-related {
  color: var(--warning);
}

.context-empty,
.empty-state {
  color: var(--muted);
  padding: 8px;
}

.context-block {
  margin-bottom: 16px;
}

.context-title {
  font-weight: 700;
  color: var(--text);
  margin-bottom: 8px;
}

.context-copy {
  white-space: pre-wrap;
}

.chip-row {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.chip {
  border: 1px solid var(--border);
  background: var(--panel-2);
  color: var(--muted);
  padding: 2px 6px;
}

.chip.core {
  color: var(--accent);
  border-color: #315031;
}

.chip.related {
  color: var(--warning);
  border-color: #665220;
}

.chip.danger {
  color: var(--danger);
}

@media (max-width: 1200px) {
  .workspace {
    grid-template-columns: 1fr;
  }

  .panel-resizer {
    display: none;
  }

  .controls {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .actions {
    grid-column: span 2;
    flex-wrap: wrap;
  }

  .control-group-wide {
    grid-column: span 2;
  }
}