/**
 * Universal Operational Workspace — WP-OIP-05A R4A
 * Constitutional grid layout + quiet orientation typography.
 */

:root {
  --uw-nav-width: 14rem;
  --uw-right-width: 12.5rem;
  --uw-splitter-width: 5px;
  --uw-stream-height: 3rem;
  --uw-work-surface: rgba(14, 19, 27, 0.72);
  --uw-center-surface: rgba(22, 30, 44, 0.92);
  --uw-op-surface: rgba(14, 18, 26, 0.97);
  --uw-region-pad-x: 0.9rem;
  --uw-border-subtle: rgba(255, 255, 255, 0.06);
  --uw-border-accent: rgba(77, 163, 255, 0.14);
  /* TSF UI baseline — metadata label/value layout (inherited by all workspaces) */
  --uw-meta-label-value-gap: 10px;
  --uw-meta-group-gap: 24px;
}

.uw-body {
  margin: 0;
  min-height: 100vh;
  overflow: hidden;
}

.uw-body .app-header,
.uw-body .app-footer {
  display: none;
}

/* Constitutional shell: Region 1 | nav splitter | main column */
.uw-root {
  display: grid;
  grid-template-columns: var(--uw-nav-width) var(--uw-splitter-width) minmax(0, 1fr);
  height: 100vh;
  max-height: 100vh;
  background: radial-gradient(circle at 28% 0%, #172033 0%, var(--bg) 52%);
  color: var(--text);
  position: relative;
}

.uw-main-column {
  display: grid;
  grid-template-rows: auto auto minmax(0, 1fr) auto;
  min-width: 0;
  min-height: 0;
}

/* Region 1 — Organization Navigator (layout-owned, visually quiet) */
.uw-nav {
  min-width: 0;
  min-height: 0;
  margin: 0;
  padding: 0.7rem 0.35rem 1rem 0.5rem;
  overflow-y: auto;
  color: var(--muted);
  font-size: 0.72rem;
  background: transparent;
}

.uw-nav-brand {
  margin: 0 0 1rem;
  padding: 0 0.1rem;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.35rem;
}

.tsf-brand-home {
  appearance: none;
  border: 0;
  margin: 0;
  padding: 0;
  background: transparent;
  cursor: pointer;
  line-height: 0;
  border-radius: 6px;
}

.tsf-brand-home:focus-visible {
  outline: 2px solid rgba(77, 163, 255, 0.55);
  outline-offset: 3px;
}

.tsf-brand-logo {
  display: block;
  width: auto;
  height: 1.45rem;
  max-width: 100%;
}

.tsf-brand-subtitle {
  display: block;
  font-size: 0.52rem;
  font-weight: 400;
  line-height: 1.35;
  color: rgba(160, 172, 188, 0.62);
}

.uw-nav-brand span {
  display: block;
  margin-top: 0.12rem;
  font-size: 0.52rem;
  font-weight: 400;
  color: rgba(160, 172, 188, 0.62);
}

.uw-nav-group li button:not([disabled]) {
  cursor: pointer;
}

.uw-op-file.is-disabled {
  opacity: 0.5;
  pointer-events: none;
}

.uw-op-file.is-disabled em {
  font-style: normal;
  margin-left: 0.35rem;
  color: var(--muted);
  font-size: 0.68rem;
}

.uw-nav-group {
  margin: 0 0 0.8rem;
}

.uw-nav-nested {
  list-style: none;
  margin: 0;
  padding: 0;
}

.uw-nav-nested .uw-nav-subgroup {
  margin: 0.35rem 0 0.45rem;
}

.uw-nav-nested .uw-nav-subgroup summary {
  padding-left: 0.35rem;
  color: rgba(162, 176, 194, 0.68);
}

.uw-nav-nested .uw-nav-subgroup ul {
  margin: 0.12rem 0 0;
  padding-left: 0.45rem;
  border-left: 1px solid rgba(120, 140, 165, 0.18);
}

.uw-nav-nested .uw-nav-subgroup li button {
  padding-left: 0.45rem;
  font-size: 0.72rem;
}

.uw-nav-l0 {
  list-style: none;
  margin: 0 0 0.65rem;
  padding: 0;
}

.uw-nav-l0 li button {
  display: block;
  width: 100%;
  margin: 0;
  padding: 0.28rem 0.35rem;
  border: none;
  border-left: 2px solid transparent;
  background: none;
  color: rgba(210, 220, 235, 0.82);
  font: inherit;
  font-weight: 600;
  font-size: 0.78rem;
  text-align: left;
  cursor: pointer;
  line-height: 1.35;
}

.uw-nav-l0 li.is-active button {
  border-left-color: rgba(77, 163, 255, 0.42);
  color: rgba(230, 236, 246, 0.96);
}

.uw-nav-plane-label {
  list-style: none;
  margin: 0.35rem 0 0.2rem;
  padding: 0 0 0.12rem 0.35rem;
  font-size: 0.48rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: rgba(155, 172, 192, 0.58);
  pointer-events: none;
}

.uw-nav-operator {
  margin-bottom: 0.55rem;
}

.uw-nav-derived summary {
  color: rgba(155, 168, 184, 0.52);
}

.uw-nav-group summary {
  list-style: none;
  cursor: pointer;
  padding: 0 0 0.22rem 0.12rem;
  font-size: 0.52rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: rgba(162, 176, 194, 0.62);
}

.uw-nav-group summary::-webkit-details-marker {
  display: none;
}

.uw-nav-group ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.uw-nav-group li button {
  display: block;
  width: 100%;
  margin: 0;
  padding: 0.18rem 0.3rem 0.18rem 0.35rem;
  border: none;
  border-left: 2px solid transparent;
  background: none;
  color: rgba(188, 198, 212, 0.68);
  font: inherit;
  font-size: 0.72rem;
  text-align: left;
  cursor: default;
  line-height: 1.35;
}

.uw-nav-group li.is-active button {
  border-left-color: rgba(77, 163, 255, 0.42);
  color: rgba(228, 234, 244, 0.94);
}

.uw-nav-group li button em {
  font-style: normal;
  margin-left: 0.3rem;
  font-size: 0.62rem;
  opacity: 0.5;
}

.uw-nav-group--muted summary {
  color: rgba(130, 140, 155, 0.36);
}

.uw-nav-group--muted li button {
  color: rgba(130, 140, 155, 0.38);
}

.uw-root[data-nav-layout="compact"] .uw-nav-group summary,
.uw-root[data-nav-layout="compact"] .uw-nav-group button {
  font-size: 0;
  line-height: 0;
  color: transparent;
}

.uw-root[data-nav-layout="compact"] .tsf-brand-subtitle {
  display: none;
}

.uw-root[data-nav-layout="compact"] .tsf-brand-logo {
  height: 1.2rem;
}

.uw-root[data-nav-layout="compact"] .uw-nav-group li button {
  font-size: 0;
  padding: 0.35rem;
  text-align: center;
}

.uw-root[data-nav-layout="compact"] .uw-nav-group li button::before {
  content: "";
  display: inline-block;
  width: 0.28rem;
  height: 0.28rem;
  border-radius: 1px;
  background: rgba(165, 175, 190, 0.45);
  font-size: initial;
}

.uw-root[data-nav-layout="compact"] .uw-nav-group li.is-active button::before {
  border-radius: 50%;
  background: rgba(77, 163, 255, 0.55);
}

.uw-root[data-nav-layout="compact"] .uw-nav-group li button em {
  display: none;
}

.uw-root[data-nav-layout="hidden"] .uw-nav {
  opacity: 0;
  pointer-events: none;
  overflow: hidden;
}

.uw-path-option,
.uw-op-cap-tab {
  cursor: pointer;
}

.uw-resize-grip {
  position: absolute;
  top: 40%;
  width: 5px;
  height: 2.5rem;
  border-radius: 4px;
  background: rgba(77, 163, 255, 0.4);
  border: 1px solid rgba(77, 163, 255, 0.6);
  cursor: col-resize;
  z-index: 2;
  opacity: 0.6;
}

.uw-resize-grip-nav {
  right: 2px;
}

.uw-resize-grip-dock {
  left: 2px;
  top: 35%;
}

/* Global Header — WP-OIP-05A R3 UX-008 */
.uw-global-header {
  border-bottom: 1px solid var(--uw-border-subtle);
  background: rgba(13, 17, 24, 0.96);
  padding: 0.38rem var(--uw-region-pad-x);
  /* TSF-UI-003 closure: breathing room before Navigation Header (pairs with toolbar margin) */
  margin-bottom: 0;
  flex-shrink: 0;
}

.uw-global-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 2.35rem;
}

.uw-global-context {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--uw-meta-group-gap);
  min-width: 0;
  flex: 1;
}

.uw-global-ctx-segment {
  display: inline-flex;
  align-items: baseline;
  gap: var(--uw-meta-label-value-gap);
  min-width: 0;
  max-width: 100%;
}

.uw-global-ctx-label {
  font-size: 0.54rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
  opacity: 0.8;
  flex-shrink: 0;
  line-height: 1.2;
}

.uw-global-ctx-value {
  font-size: 0.76rem;
  font-weight: 500;
  color: var(--text);
  min-width: 0;
  max-width: 18rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  line-height: 1.25;
}

.uw-global-ctx-value--select {
  list-style: none;
  cursor: pointer;
  padding: 0.12rem 0.4rem;
  margin: 0;
  border-radius: 5px;
  border: 1px solid transparent;
  display: inline-block;
  max-width: 18rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  vertical-align: baseline;
}

.uw-global-ctx-value--select::-webkit-details-marker {
  display: none;
}

.uw-global-context details[open] .uw-global-ctx-value--select {
  border-color: var(--uw-border-subtle);
  background: rgba(255, 255, 255, 0.03);
}

.uw-global-context .uw-path-dropdown {
  min-width: 0;
  max-width: 18rem;
}

/* Legacy separator retained for markup safety; spacing is owned by --uw-meta-group-gap */
.uw-global-ctx-sep {
  display: none;
}

.uw-global-user {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  flex-shrink: 0;
}

.uw-global-notify {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.85rem;
  height: 1.85rem;
  padding: 0;
  border: 1px solid var(--uw-border-subtle);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.02);
  cursor: default;
}

.uw-global-notify-icon {
  width: 0.8rem;
  height: 0.85rem;
  border: 1.5px solid var(--muted);
  border-top: none;
  border-radius: 0 0 4px 4px;
  position: relative;
  opacity: 0.7;
}

.uw-global-notify-icon::before {
  content: "";
  position: absolute;
  top: -0.45rem;
  left: 50%;
  transform: translateX(-50%);
  width: 0.35rem;
  height: 0.35rem;
  border: 1.5px solid var(--muted);
  border-radius: 50% 50% 0 0;
  border-bottom: none;
}

.uw-global-notify-badge {
  position: absolute;
  top: -0.2rem;
  right: -0.2rem;
  min-width: 0.95rem;
  height: 0.95rem;
  padding: 0 0.2rem;
  border-radius: 999px;
  background: rgba(77, 163, 255, 0.85);
  color: #041018;
  font-size: 0.52rem;
  font-weight: 700;
  line-height: 0.95rem;
  text-align: center;
}

.uw-global-user-block {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.15rem 0.15rem 0.15rem 0.2rem;
  border: 1px solid var(--uw-border-subtle);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.02);
}

.uw-global-avatar {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.65rem;
  height: 1.65rem;
  border-radius: 50%;
  background: rgba(77, 163, 255, 0.15);
  color: var(--accent);
  font-size: 0.58rem;
  font-weight: 700;
  flex-shrink: 0;
}

.uw-global-user-text {
  display: flex;
  flex-direction: column;
  gap: 0.02rem;
  min-width: 0;
}

.uw-global-user-name {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--text);
  white-space: nowrap;
}

.uw-global-user-role {
  font-size: 0.58rem;
  color: var(--muted);
  white-space: nowrap;
}

.uw-global-user-menu {
  padding: 0.1rem 0.25rem;
  border: none;
  background: transparent;
  color: var(--muted);
  font-size: 0.7rem;
  cursor: default;
  line-height: 1;
}

/* Legacy path/context — retained for hash routes */
.uw-active-path {
  border-bottom: 1px solid var(--border);
  background: rgba(15, 20, 25, 0.75);
  padding: 0.28rem 0.85rem;
}

.uw-active-path-inner {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  flex-wrap: wrap;
}

.uw-path-segment {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.uw-path-label {
  font-size: 0.6rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--muted);
}

.uw-path-dropdown {
  position: relative;
}

.uw-path-dropdown summary {
  list-style: none;
  cursor: pointer;
  font-size: inherit;
  font-weight: inherit;
  color: inherit;
  padding: 0;
  border: none;
  background: transparent;
}

.uw-path-dropdown summary::-webkit-details-marker {
  display: none;
}

.uw-path-dropdown[open] summary {
  border-color: transparent;
  background: transparent;
  color: inherit;
}

.uw-path-value-static {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--accent);
  padding: 0.2rem 0.45rem;
}

.uw-path-menu {
  position: absolute;
  top: calc(100% + 0.25rem);
  left: 0;
  z-index: 10;
  list-style: none;
  margin: 0;
  padding: 0.25rem;
  min-width: 9rem;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.uw-path-option {
  display: block;
  width: 100%;
  padding: 0.35rem 0.55rem;
  border: none;
  border-radius: 4px;
  background: transparent;
  color: var(--muted);
  font: inherit;
  font-size: 0.75rem;
  text-align: left;
  cursor: default;
}

.uw-path-option.is-active {
  background: var(--accent-soft);
  color: var(--accent);
  font-weight: 600;
}

.uw-path-divider {
  width: 1px;
  height: 1.1rem;
  background: var(--border);
  flex-shrink: 0;
}

.uw-path-context-expanded {
  position: absolute;
  top: calc(100% + 0.25rem);
  left: 0;
  z-index: 10;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.3rem;
  padding: 0.45rem 0.6rem;
  font-size: 0.72rem;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  box-shadow: var(--shadow);
  white-space: nowrap;
}

.uw-path-context-expanded .is-active {
  color: var(--accent);
  font-weight: 600;
}

/* Operational Context — EUXR-005 minimal strip */
.uw-context {
  border-bottom: 1px solid var(--border);
  background: rgba(26, 35, 50, 0.8);
  padding: 0.18rem 0.85rem;
}

.uw-context-strip {
  display: flex;
  align-items: center;
}

.uw-context-expand summary {
  list-style: none;
  cursor: pointer;
}

.uw-context-expand summary::-webkit-details-marker {
  display: none;
}

.uw-context-line {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem;
  margin: 0;
  font-size: 0.72rem;
  color: var(--text);
}

.uw-ctx-field em {
  font-style: normal;
  color: var(--muted);
  font-weight: 600;
  font-size: 0.62rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  margin-right: 0.2rem;
}

.uw-ctx-sep {
  opacity: 0.4;
  font-size: 0.65rem;
}

.uw-ctx-priority {
  color: var(--success);
}

.uw-context-chain-expanded {
  margin: 0.2rem 0 0;
  font-size: 0.68rem;
  color: var(--muted);
}

/* Compact toolbar — UX-001 reserved slot (hidden) */
.uw-toolbar {
  display: none;
}

.uw-toolbar--reserved {
  display: none !important;
  height: 0;
  min-height: 0;
  padding: 0;
  margin: 0;
  border: none;
  overflow: hidden;
}

.uw-toolbar-inner {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  flex-wrap: wrap;
}

.uw-toolbar-control summary {
  list-style: none;
  cursor: pointer;
  font-size: 0.68rem;
  font-weight: 500;
  color: var(--muted);
  padding: 0.18rem 0.45rem;
  border-radius: 5px;
  border: 1px solid transparent;
}

.uw-toolbar-control summary::-webkit-details-marker {
  display: none;
}

.uw-toolbar-control[open] summary {
  border-color: var(--border);
  background: var(--surface);
  color: var(--text);
}

.uw-toolbar-menu {
  position: absolute;
  margin-top: 0.2rem;
  padding: 0.25rem;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 6px;
  display: grid;
  gap: 0.15rem;
  z-index: 5;
}

.uw-toolbar-control {
  position: relative;
}

.uw-toolbar-menu button {
  font: inherit;
  font-size: 0.68rem;
  padding: 0.25rem 0.45rem;
  border: none;
  border-radius: 4px;
  background: transparent;
  color: var(--muted);
  text-align: left;
  cursor: default;
}

/* Work area — Conversation Workspace dominates (UX-005 / UX-006) */
.uw-work-area {
  display: grid;
  grid-template-columns: minmax(380px, 1fr) var(--uw-splitter-width) minmax(176px, var(--uw-right-width));
  min-height: 0;
  overflow: hidden;
  background: var(--uw-work-surface);
}

.uw-splitter-nav::before {
  opacity: 0.3;
}

.uw-center {
  min-width: 0;
  min-height: 0;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  background: var(--uw-center-surface);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.03);
}

.uw-workspace-host {
  flex: 1;
  min-height: 0;
  min-width: 0;
  overflow-x: hidden;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
}

.uw-hic-host {
  flex-shrink: 0;
}

.uw-splitter {
  position: relative;
  width: var(--uw-splitter-width);
  cursor: col-resize;
  background: transparent;
  transition: background 0.15s ease;
  z-index: 3;
  flex-shrink: 0;
  align-self: stretch;
  min-height: 0;
}

.uw-splitter::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 1px;
  transform: translateX(-50%);
  background: var(--border);
  transition: background 0.15s ease, width 0.15s ease;
}

.uw-splitter:hover::before,
.uw-splitter.is-active::before {
  width: 3px;
  background: rgba(77, 163, 255, 0.65);
}

.uw-splitter:hover,
.uw-splitter.is-active {
  background: rgba(77, 163, 255, 0.08);
}

.uw-splitter-dragging {
  cursor: col-resize !important;
  user-select: none;
}

.uw-splitter-dragging .uw-splitter::before {
  width: 3px;
  background: var(--accent);
}

.uw-right {
  min-width: 0;
  min-height: 0;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  background: var(--uw-op-surface);
  border-left: 1px solid var(--uw-border-accent);
  box-shadow: inset 1px 0 0 rgba(0, 0, 0, 0.2);
}

/* Region identity — unified rhythm (UX-006) */
.uw-region-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1rem;
  flex-shrink: 0;
  padding: 0.55rem var(--uw-region-pad-x) 0.45rem;
  border-bottom: 1px solid var(--uw-border-subtle);
}

.uw-region-title {
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--muted);
}

.uw-region-header--conversation {
  background: rgba(24, 34, 48, 0.55);
  border-bottom-color: var(--uw-border-accent);
}

.uw-region-header--conversation .uw-region-title {
  color: var(--text);
  font-size: 0.72rem;
}

.uw-conversation-identity {
  display: flex;
  flex-direction: column;
  gap: 0.12rem;
}

.uw-conversation-tagline {
  font-size: 0.62rem;
  color: var(--muted);
  letter-spacing: 0.01em;
}

.uw-conversation-lifecycle {
  margin: 0;
  font-size: 0.62rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  color: var(--accent);
  opacity: 0.9;
  text-align: right;
  white-space: nowrap;
}
.uw-conversation {
  display: flex;
  flex-direction: column;
  min-height: 0;
  height: 100%;
  overflow: hidden;
}

.uw-conversation-surface {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding: 0.85rem var(--uw-region-pad-x) 1rem;
  align-content: start;
  overflow-y: auto;
  min-height: 0;
}

.uw-work-card {
  background: rgba(26, 35, 50, 0.42);
  border: 1px solid var(--uw-border-subtle);
  border-radius: 8px;
  padding: 0;
  box-shadow: none;
}

.uw-work-card-primary {
  background: rgba(32, 44, 62, 0.82);
  border-left: 3px solid rgba(77, 163, 255, 0.65);
  border-color: rgba(77, 163, 255, 0.12);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.12);
}

.uw-work-card summary {
  list-style: none;
  cursor: pointer;
  padding: 0.7rem 0.9rem;
  font-size: 0.84rem;
  font-weight: 600;
  color: var(--muted);
}

.uw-work-card summary::-webkit-details-marker {
  display: none;
}

.uw-work-card summary::before {
  content: "▶ ";
  font-size: 0.65rem;
  opacity: 0.7;
}

.uw-work-card[open] summary::before {
  content: "▼ ";
}

.uw-work-card-primary summary {
  color: var(--text);
}

.uw-work-card[open] summary {
  border-bottom: 1px solid var(--border);
  color: var(--text);
}

.uw-work-card p,
.uw-work-card li {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.55;
  color: var(--text);
  padding: 0.75rem 0.9rem;
}

.uw-work-card ul {
  margin: 0;
  padding: 0.65rem 0.85rem 0.65rem 1.75rem;
}

.uw-work-card-collapsed summary {
  color: var(--muted);
}

/* Human Interaction Center — UX-003 organizational gateway */
.uw-hic {
  flex-shrink: 0;
  margin-top: 0.35rem;
  padding: 0.65rem var(--uw-region-pad-x) 0.85rem;
  background: rgba(10, 14, 20, 0.92);
  border-top: 1px solid var(--uw-border-accent);
  box-shadow: 0 -8px 24px rgba(0, 0, 0, 0.28);
}

.uw-hic-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.5rem;
  margin-bottom: 0.55rem;
}

.uw-hic-label {
  font-size: 0.62rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--text);
}

.uw-hic-sublabel {
  font-size: 0.58rem;
  color: var(--muted);
}

.uw-hic-gateway {
  display: flex;
  align-items: stretch;
  gap: 0.65rem;
}

.uw-hic-anchor {
  flex-shrink: 0;
  width: 2.5rem;
  min-height: 2.65rem;
  padding: 0;
  border: 1px solid rgba(77, 163, 255, 0.45);
  border-radius: 10px;
  background: linear-gradient(180deg, rgba(40, 58, 82, 0.95) 0%, rgba(26, 38, 56, 0.95) 100%);
  color: var(--accent);
  font-size: 1.35rem;
  font-weight: 500;
  line-height: 1;
  cursor: not-allowed;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 8px rgba(77, 163, 255, 0.12);
}

.uw-hic-input {
  flex: 1;
  display: flex;
  align-items: center;
  min-height: 2.65rem;
  padding: 0.65rem 0.9rem;
  border-radius: 10px;
  border: 1px solid var(--uw-border-subtle);
  background: rgba(18, 24, 34, 0.88);
}

.uw-hic-placeholder {
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.4;
}

.uw-hic-send {
  flex-shrink: 0;
  align-self: center;
  padding: 0.45rem 0.85rem;
  border: 1px solid var(--uw-border-subtle);
  border-radius: 8px;
  background: rgba(26, 35, 50, 0.65);
  color: var(--muted);
  font-weight: 600;
  font-size: 0.72rem;
  cursor: not-allowed;
  line-height: 1.2;
}

.uw-has-tooltip {
  position: relative;
}

.uw-has-tooltip::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: calc(100% + 0.35rem);
  left: 50%;
  transform: translateX(-50%);
  padding: 0.3rem 0.5rem;
  font-size: 0.62rem;
  font-weight: 500;
  white-space: nowrap;
  color: var(--text);
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 5px;
  box-shadow: var(--shadow);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.15s ease;
  z-index: 20;
}

.uw-has-tooltip:hover::after,
.uw-has-tooltip:focus-visible::after {
  opacity: 1;
}

/* Operational Center — UX-002 execution environment */
.uw-op-center {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 0;
  height: 100%;
}

.uw-op-hero {
  flex-shrink: 0;
  padding: 0.7rem var(--uw-region-pad-x) 0.55rem;
  border-bottom: 1px solid var(--uw-border-accent);
  background: rgba(18, 24, 34, 0.9);
}

.uw-op-hero-title {
  margin: 0;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text);
  line-height: 1.2;
}

.uw-op-hero-sub {
  margin: 0.2rem 0 0;
  font-size: 0.58rem;
  color: var(--muted);
  letter-spacing: 0.02em;
}

.uw-op-cap-band {
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  padding: 0.35rem var(--uw-region-pad-x) 0;
  border-bottom: 1px solid var(--uw-border-subtle);
  background: rgba(16, 22, 32, 0.85);
}

.uw-op-cap-band-label {
  font-size: 0.55rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--muted);
  opacity: 0.85;
}

.uw-op-cap-tabs {
  flex-shrink: 0;
  display: flex;
  align-items: stretch;
  gap: 0;
  padding: 0;
  border-bottom: none;
  background: transparent;
  min-height: 1.85rem;
}

.uw-op-cap-tab {
  font: inherit;
  font-size: 0.66rem;
  font-weight: 600;
  padding: 0.35rem 0.55rem 0.45rem;
  border: none;
  border-bottom: 2px solid transparent;
  background: transparent;
  color: var(--muted);
  cursor: default;
  margin-bottom: 0;
}

.uw-op-cap-tab.is-active {
  color: var(--accent);
  border-bottom-color: var(--accent);
  background: rgba(77, 163, 255, 0.06);
}

.uw-op-cap-panel {
  flex: 1;
  overflow-y: auto;
  min-height: 0;
}

.uw-op-panel-body {
  padding: 0.5rem 0.65rem 0.65rem;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}

.uw-op-section {
  padding-bottom: 0.45rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.uw-op-section:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.uw-op-section-label {
  margin: 0 0 0.25rem;
  font-size: 0.62rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--muted);
}

.uw-op-section-collapsible summary {
  list-style: none;
  cursor: pointer;
}

.uw-op-section-collapsible summary::-webkit-details-marker {
  display: none;
}

.uw-op-section-value {
  margin: 0;
  font-size: 0.75rem;
  color: var(--text);
}

.uw-op-tree {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  margin-top: 0.35rem;
  font-size: 0.7rem;
  font-family: ui-monospace, monospace;
  color: var(--muted);
}

.uw-op-tree .is-active {
  color: var(--accent);
}

.uw-op-file-list {
  list-style: none;
  margin: 0.35rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.2rem;
}

.uw-op-file {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.7rem;
  font-family: ui-monospace, monospace;
  color: var(--muted);
  padding: 0.2rem 0.15rem;
  border-radius: 4px;
}

.uw-op-file:hover {
  background: rgba(77, 163, 255, 0.06);
  color: var(--text);
}

.uw-op-file-icon {
  opacity: 0.55;
  font-size: 0.65rem;
}

.uw-op-status-list {
  list-style: none;
  margin: 0.25rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.25rem;
}

.uw-op-status-list li {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.68rem;
  color: var(--muted);
}

.uw-op-status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  flex-shrink: 0;
}

.uw-op-status-dot.is-synced {
  background: var(--accent);
}

.uw-op-status-dot.is-clean {
  background: var(--success);
}

.uw-op-status-dot.is-watch {
  background: #c9a227;
}

/* Operational Event Stream — UX-004 heartbeat */
.uw-timeline {
  border-top: 1px solid var(--uw-border-accent);
  background: rgba(8, 12, 18, 0.99);
  min-height: var(--uw-stream-height);
  flex-shrink: 0;
  box-shadow: 0 -4px 16px rgba(0, 0, 0, 0.28);
}

.uw-stream-bar {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.5rem var(--uw-region-pad-x);
  min-height: var(--uw-stream-height);
  border-left: 3px solid rgba(77, 163, 255, 0.55);
}

.uw-stream-pulse {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 0 3px rgba(52, 199, 123, 0.18);
  flex-shrink: 0;
}

.uw-stream-compact-label {
  font-size: 0.62rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--muted);
  flex-shrink: 0;
}

.uw-stream-now {
  font-size: 0.58rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--success);
  flex-shrink: 0;
}

.uw-stream-latest {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text);
  margin-left: auto;
}

.uw-stream-dot--live {
  width: 7px;
  height: 7px;
  background: var(--success);
  opacity: 1;
  box-shadow: 0 0 6px rgba(52, 199, 123, 0.45);
}

.uw-stream-wrap summary::before {
  content: "▶ ";
  font-size: 0.6rem;
  opacity: 0.6;
  flex-shrink: 0;
}

.uw-stream-wrap[open] summary::before {
  content: "▼ ";
}

.uw-stream-wrap summary {
  list-style: none;
  cursor: pointer;
  display: block;
  padding: 0.15rem var(--uw-region-pad-x) 0.3rem;
  font-size: 0.58rem;
  font-weight: 500;
  color: var(--muted);
  opacity: 0.75;
}

.uw-stream-wrap summary::-webkit-details-marker {
  display: none;
}

.uw-memory-compact {
  margin-left: auto;
  font-size: 0.62rem;
  color: var(--success);
  flex-shrink: 0;
}

.uw-stream-expanded {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.35rem 0.85rem 0.55rem;
  border-top: 1px solid var(--border);
  overflow-x: auto;
}

.uw-stream-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  white-space: nowrap;
}

.uw-stream-item {
  display: flex;
  align-items: center;
  gap: 0.3rem;
  font-size: 0.68rem;
  color: var(--muted);
}

.uw-stream-item.is-latest {
  color: var(--text);
}

.uw-stream-dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--accent);
  opacity: 0.7;
  flex-shrink: 0;
}

.uw-memory {
  margin-left: auto;
  display: flex;
  gap: 0.3rem;
  flex-shrink: 0;
}

.uw-memory-pill {
  font-size: 0.58rem;
  padding: 0.15rem 0.4rem;
  border-radius: 999px;
  border: 1px solid rgba(62, 207, 142, 0.3);
  color: var(--success);
  background: rgba(62, 207, 142, 0.08);
  white-space: nowrap;
}

.uw-center-legacy-wrap {
  padding: 1.25rem 1.5rem 2rem;
  max-width: 1100px;
}

/* Responsive */
@media (max-width: 960px) {
  :root {
    --uw-right-width: 13rem;
  }
}

@media (max-width: 768px) {
  .uw-root {
    grid-template-columns: 1fr;
    height: auto;
    min-height: 100vh;
    max-height: none;
  }

  .uw-body {
    overflow: auto;
  }

  .uw-nav {
    max-height: 10rem;
  }

  .uw-splitter-nav {
    display: none;
  }

  .uw-resize-grip,
  .uw-splitter-right {
    display: none;
  }

  .uw-work-area {
    grid-template-columns: 1fr;
    grid-template-rows: minmax(16rem, 1fr) auto;
  }

  .uw-right {
    border-top: 1px solid var(--border);
    max-height: 14rem;
  }

  .uw-active-path-inner {
    gap: 0.4rem;
  }

  .uw-path-divider {
    display: none;
  }
}

@media (max-width: 480px) {
  .uw-context-line {
    font-size: 0.65rem;
  }
}