:root {
  color-scheme: dark;
  --surface-0: #09090b;
  --surface-1: rgba(15, 15, 18, 0.96);
  --surface-2: rgba(22, 22, 26, 0.92);
  --surface-2-5: rgba(28, 28, 30, 0.92);
  --surface-3: rgba(36, 36, 44, 0.88);
  --surface-inset: rgba(17, 17, 23, 0.94);
  --surface-overlay: rgba(12, 12, 16, 0.86);
  --border-subtle: rgba(244, 244, 245, 0.08);
  --border-strong: rgba(244, 244, 245, 0.16);
  --text-primary: #f4f4f5;
  --text-secondary: rgba(221, 221, 235, 0.68);
  --text-tertiary: rgba(161, 161, 170, 0.76);
  --accent-positive-soft: rgba(34, 197, 94, 0.18);
  --accent-positive-soft-hover: rgba(34, 197, 94, 0.26);
  --accent-positive-strong: #34d399;
  --accent-warning-soft: rgba(251, 191, 36, 0.22);
  --accent-warning-soft-hover: rgba(251, 191, 36, 0.32);
  --accent-warning-strong: #fbbf24;
  --accent-critical-soft: rgba(248, 113, 113, 0.24);
  --accent-critical-soft-hover: rgba(248, 113, 113, 0.32);
  --accent-critical-strong: #f87171;
  --accent-neutral-soft: rgba(148, 163, 184, 0.18);
  --accent-neutral-strong: #e4e4e7;
  --tag-accent-soft: rgba(250, 204, 21, 0.24);
  --tag-accent-soft-hover: rgba(250, 204, 21, 0.32);
  --tag-accent-strong: #facc15;
  --button-bg: rgba(63, 63, 70, 0.45);
  --button-bg-hover: rgba(82, 82, 91, 0.55);
  --shadow-elevated: 0 22px 42px rgba(0, 0, 0, 0.48);
  --resize-handle-bg: rgba(244, 244, 245, 0.06);
  --resize-handle-hover: rgba(244, 244, 245, 0.14);
  --resize-handle-grip-top: rgba(244, 244, 245, 0.45);
  --resize-handle-grip-bottom: rgba(244, 244, 245, 0.18);

  /* Spacing scale */
  --space-unit: 0.25rem;
  --space-1: calc(var(--space-unit) * 1);
  --space-2: calc(var(--space-unit) * 2);
  --space-3: calc(var(--space-unit) * 3);
  --space-4: calc(var(--space-unit) * 4);
  --space-5: calc(var(--space-unit) * 5);
  --space-6: calc(var(--space-unit) * 6);
  --space-7: calc(var(--space-unit) * 7);
  --space-8: calc(var(--space-unit) * 8);
  --space-9: calc(var(--space-unit) * 9);
  --space-10: calc(var(--space-unit) * 10);
  --space-12: calc(var(--space-unit) * 12);

  /* Semantic spacing */
  /* Panel & workspace */
  --panel-gap: var(--space-2);
  --panel-padding: var(--space-2);
  --panel-padding-lg: var(--space-6);
  --panel-padding-sm: var(--space-4);
  --inset-padding: var(--space-4);

  /* Item spacing */
  --item-gap: var(--space-3);
  --item-gap-sm: var(--space-2);
  --item-gap-lg: var(--space-4);
  --item-gap-xs: var(--space-1);
  --item-spacing: var(--space-2);
  --item-spacing-sm: var(--space-1);

  /* Card & list item */
  --card-padding-y: var(--space-3);
  --card-padding-x: var(--space-4);
  --card-padding-sm-y: var(--space-2);
  --card-padding-sm-x: var(--space-4);

  /* Controls & inputs */
  --control-offset: var(--space-2);
  --button-padding-x: var(--space-3);
  --input-padding-x: var(--space-2);
  --input-padding-y: var(--space-1);

  /* Tags & badges */
  --tag-padding-x: var(--space-2);
  --badge-gap: var(--space-2);
}


:root[data-theme='charcoal'] {
  color-scheme: dark;
}
:root[data-theme='midnight'] {
  color-scheme: dark;
  --surface-0: #030712;
  --surface-1: rgba(6, 11, 26, 0.96);
  --surface-2: rgba(9, 17, 36, 0.9);
  --surface-3: rgba(17, 28, 54, 0.88);
  --surface-inset: rgba(9, 15, 34, 0.94);
  --surface-overlay: rgba(5, 10, 26, 0.9);
  --border-subtle: rgba(147, 197, 253, 0.16);
  --border-strong: rgba(147, 197, 253, 0.28);
  --text-primary: #e0f2fe;
  --text-secondary: rgba(164, 202, 253, 0.75);
  --text-tertiary: rgba(125, 180, 248, 0.68);
  --accent-positive-soft: rgba(34, 197, 94, 0.2);
  --accent-positive-soft-hover: rgba(34, 197, 94, 0.32);
  --accent-positive-strong: #4ade80;
  --accent-warning-soft: rgba(251, 191, 36, 0.26);
  --accent-warning-soft-hover: rgba(251, 191, 36, 0.36);
  --accent-warning-strong: #fde68a;
  --accent-critical-soft: rgba(248, 113, 113, 0.3);
  --accent-critical-soft-hover: rgba(248, 113, 113, 0.38);
  --accent-critical-strong: #fb7185;
  --accent-neutral-soft: rgba(147, 197, 253, 0.22);
  --accent-neutral-strong: #bfdbfe;
  --tag-accent-soft: rgba(253, 224, 71, 0.28);
  --tag-accent-soft-hover: rgba(253, 224, 71, 0.38);
  --tag-accent-strong: #fde047;
  --button-bg: rgba(37, 99, 235, 0.24);
  --button-bg-hover: rgba(59, 130, 246, 0.32);
  --shadow-elevated: 0 24px 48px rgba(8, 47, 73, 0.5);
  --resize-handle-bg: rgba(147, 197, 253, 0.14);
  --resize-handle-hover: rgba(191, 219, 254, 0.24);
  --resize-handle-grip-top: rgba(191, 219, 254, 0.6);
  --resize-handle-grip-bottom: rgba(96, 165, 250, 0.24);
}

:root[data-theme='dawn'] {
  color-scheme: light;
  --surface-0: #f3f4f8;
  --surface-1: rgba(255, 255, 255, 0.94);
  --surface-2: rgba(248, 250, 252, 0.92);
  --surface-3: rgba(236, 240, 244, 0.9);
  --surface-inset: rgba(232, 236, 242, 0.92);
  --surface-overlay: rgba(248, 250, 252, 0.85);
  --border-subtle: rgba(15, 23, 42, 0.12);
  --border-strong: rgba(15, 23, 42, 0.24);
  --text-primary: #0f172a;
  --text-secondary: rgba(30, 41, 59, 0.75);
  --text-tertiary: rgba(71, 85, 105, 0.78);
  --accent-positive-soft: rgba(22, 163, 74, 0.12);
  --accent-positive-soft-hover: rgba(22, 163, 74, 0.22);
  --accent-positive-strong: #166534;
  --accent-warning-soft: rgba(202, 138, 4, 0.14);
  --accent-warning-soft-hover: rgba(202, 138, 4, 0.26);
  --accent-warning-strong: #b45309;
  --accent-critical-soft: rgba(220, 38, 38, 0.15);
  --accent-critical-soft-hover: rgba(220, 38, 38, 0.26);
  --accent-critical-strong: #b91c1c;
  --accent-neutral-soft: rgba(30, 64, 175, 0.12);
  --accent-neutral-strong: #1e3a8a;
  --tag-accent-soft: rgba(234, 179, 8, 0.18);
  --tag-accent-soft-hover: rgba(234, 179, 8, 0.28);
  --tag-accent-strong: #ca8a04;
  --button-bg: rgba(226, 232, 240, 0.75);
  --button-bg-hover: rgba(203, 213, 225, 0.9);
  --shadow-elevated: 0 18px 36px rgba(15, 23, 42, 0.16);
  --resize-handle-bg: rgba(71, 85, 105, 0.08);
  --resize-handle-hover: rgba(71, 85, 105, 0.18);
  --resize-handle-grip-top: rgba(71, 85, 105, 0.5);
  --resize-handle-grip-bottom: rgba(148, 163, 184, 0.24);
}

html,
body {
  height: 100%;
}

* {
  box-sizing: border-box;
}

/* Smooth theme transitions - only on containers, not text */
*,
*::before,
*::after {
  transition: background-color 250ms ease,
              border-color 250ms ease,
              box-shadow 250ms ease,
              backdrop-filter 250ms ease;
}

/* Text content - instant color change to avoid flicker/antialiasing issues */
span,
p,
h1, h2, h3, h4, h5, h6,
label {
  transition: none;
}

/* Interactive elements - keep snappy with color transitions */
button,
input,
select,
textarea,
a {
  transition: background-color 150ms ease,
              color 150ms ease,
              border-color 150ms ease,
              transform 150ms ease,
              opacity 150ms ease;
}

body {
  margin: 0;
  font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  background-color: var(--surface-0);
  color: var(--text-primary);
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

#root {
  height: 100%;
}

.auth-shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: var(--space-8);
  background:
    radial-gradient(circle at top left, var(--surface-2), transparent 60%),
    radial-gradient(circle at bottom right, var(--surface-3), transparent 55%),
    var(--surface-0);
}

.auth-card {
  width: 100%;
  max-width: calc(var(--space-12) * 9);
  background: var(--surface-1);
  border: 1px solid var(--border-subtle);
  border-radius: var(--space-4);
  padding: var(--panel-padding-lg);
  box-shadow: var(--shadow-elevated);
  display: grid;
  gap: var(--item-gap-lg);
}

.auth-header {
  display: grid;
  gap: var(--item-gap-sm);
}

.auth-kicker {
  margin: 0;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: calc(var(--space-1) + var(--space-2));
  color: var(--text-tertiary);
}

.auth-title {
  margin: 0;
  font-size: calc(var(--space-6) + var(--space-1));
  color: var(--text-primary);
}

.auth-subtitle {
  margin: 0;
  color: var(--text-secondary);
}

.auth-form {
  display: grid;
  gap: var(--item-gap);
}

.auth-field {
  display: grid;
  gap: var(--item-gap-xs);
}

.auth-label {
  font-size: calc(var(--space-3) + var(--space-1));
  color: var(--text-tertiary);
}

.auth-input {
  border: 1px solid var(--border-subtle);
  border-radius: var(--space-2);
  background: var(--surface-inset);
  color: var(--text-primary);
  padding: var(--input-padding-y) var(--input-padding-x);
}

.auth-input:focus {
  outline: none;
  border-color: var(--border-strong);
  box-shadow: 0 0 0 var(--space-1) var(--accent-neutral-soft);
}

.auth-error {
  margin: 0;
  color: var(--accent-critical-strong);
  background: var(--accent-critical-soft);
  border: 1px solid var(--accent-critical-soft-hover);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--space-2);
  font-size: calc(var(--space-3) + var(--space-1));
}

.auth-submit {
  border: 1px solid transparent;
  border-radius: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background: var(--accent-positive-soft);
  color: var(--text-primary);
  cursor: pointer;
  font-weight: 600;
}

.auth-submit:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.auth-submit:not(:disabled):hover {
  background: var(--accent-positive-soft-hover);
}

.auth-divider {
  display: flex;
  align-items: center;
  gap: var(--item-gap-sm);
  color: var(--text-tertiary);
  font-size: calc(var(--space-2) + var(--space-1));
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.auth-divider::before,
.auth-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border-subtle);
}

.auth-oauth-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--item-gap-sm);
  text-decoration: none;
  border: 1px solid var(--border-strong);
  border-radius: var(--space-2);
  padding: var(--space-2) var(--space-4);
  color: var(--text-primary);
  background: var(--surface-2);
}

.auth-oauth-button:hover {
  background: var(--surface-3);
}

.auth-toggle {
  border: none;
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  padding: var(--space-2) 0 0;
}

.auth-toggle:hover {
  color: var(--text-primary);
}

/* Semantic component classes */

/* Layout containers */
.app-container {
  display: flex;
  min-height: 100vh;
  height: 100%;
  flex-direction: column;
  background-color: var(--surface-0);
  color: var(--text-primary);
  transition: background-color 200ms ease, color 200ms ease;
}

.main-workspace {
  display: flex;
  flex: 1 1 0%;
  min-height: 0;
  overflow: hidden;
}

.workspace-inner {
  display: flex;
  flex: 1 1 0%;
  min-height: 0;
  width: 100%;
  border-radius: 4px;
  border: 1px solid var(--border-subtle);
  background-color: var(--surface-1);
  box-shadow: var(--shadow-elevated);
}

/* Header */
.dashboard-header {
  display: flex;
  height: 3.5rem;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-strong);
  background-color: var(--surface-overlay);
  padding-left: calc(var(--panel-padding) * 2);
  padding-right: calc(var(--panel-padding) * 2);
  backdrop-filter: blur(12px);
}

.header-title {
  font-size: 1.25rem;
  line-height: 1.75rem;
  font-weight: 600;
  color: var(--text-primary);
}

.header-subtitle {
  font-size: 0.875rem;
  line-height: 1.25rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.header-controls {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: var(--space-6);
  font-size: 0.875rem;
  line-height: 1.25rem;
  color: var(--text-secondary);
}

.status-indicators-wrapper {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: var(--space-6);
}

.header-user {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.header-user-info {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: var(--item-gap-xs);
}

.header-user-name {
  color: var(--text-primary);
  font-weight: 600;
  font-size: calc(var(--space-3) + var(--space-1));
}

.header-user-role {
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: calc(var(--space-2) + var(--space-1));
}

.header-logout-button:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

/* Status indicator */
.status-indicator {
  display: flex;
  align-items: center;
  gap: var(--item-gap);
}

.status-dot {
  height: 0.625rem;
  width: 0.625rem;
  border-radius: 9999px;
  box-shadow: inset 0 2px 4px 0 rgb(0 0 0 / 0.05);
}

.status-dot--positive { background-color: var(--accent-positive-strong); }
.status-dot--warning { background-color: var(--accent-warning-strong); }
.status-dot--critical { background-color: var(--accent-critical-strong); }
.status-dot--muted { background-color: var(--border-subtle); }

.status-info {
  display: flex;
  align-items: center;
}

.status-label {
  font-size: 0.875rem;
  line-height: 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
}

.status-description {
  display: none;
}

/* Theme selector */
.theme-selector {
  display: flex;
  align-items: center;
  gap: var(--item-gap-sm);
  font-size: 0.75rem;
  line-height: 1rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--text-tertiary);
}

.panel-controls {
  display: flex;
  align-items: center;
  gap: var(--item-gap);
  flex-wrap: wrap;
  padding-top: var(--panel-padding);
  padding-bottom: calc(var(--panel-padding)*2);
}

/* Panel content areas */
.panel-content {
  display: flex;
  flex: 1 1 0%;
  width: 100%;
  min-height: 0;
  flex-direction: column;
  overflow: auto;
}

.panel-content--padded {
  padding: var(--panel-padding-lg);
}

.panel-content--flush {
  padding: 0;
}

/* Panel titles */
.panel-title {
  font-size: 1.125rem;
  line-height: 1.75rem;
  font-weight: 600;
  color: var(--text-primary);
}

.panel-subtitle {
  font-size: 0.875rem;
  line-height: 1.25rem;
  font-weight: 500;
  color: var(--text-tertiary);
}

/* Lists */
.item-list {
  display: flex;
  flex-direction: column;
  gap: var(--item-gap);
}

.item-list--tight {
  gap: var(--item-gap-xs);
}

/* List item cards */
.list-item-card {
  width: 100%;
  border-radius: 3px;
  border: 1px solid var(--border-subtle);
  background-color: var(--surface-2);
  padding: var(--card-padding-y) var(--card-padding-x);
  text-align: left;
  transition: background-color 150ms ease, border-color 150ms ease;
}

.list-item-card:hover {
  border-color: var(--border-strong);
  background-color: var(--surface-inset);
}

.list-item-card--selected {
  border-color: var(--border-strong);
  background-color: var(--surface-inset);
  box-shadow: inset 0 2px 4px 0 rgb(0 0 0 / 0.05);
}

.list-item-card--static {
  border-radius: 3px;
  border: 1px solid var(--border-subtle);
  background-color: var(--surface-2);
  padding: var(--inset-padding);
  font-size: 0.875rem;
  line-height: 1.25rem;
  color: var(--text-primary);
  box-shadow: inset 0 2px 4px 0 rgb(0 0 0 / 0.05);
}

.list-item-card--static .badge {
  margin-top: 0.75rem;
}

/* File tree items */
.file-item {
  border-radius: 3px;
  border: 1px solid transparent;
  padding: var(--card-padding-sm-y) var(--card-padding-sm-x);
  font-size: 0.875rem;
  line-height: 1.25rem;
  color: var(--text-primary);
  transition: background-color 150ms ease, border-color 150ms ease;
}

.file-item:hover {
  border-color: var(--border-subtle);
  background-color: var(--surface-2);
}

.file-item-info {
  display: flex;
  flex-direction: column;
}

.file-item-name {
  font-weight: 500;
  color: var(--text-primary);
}

.file-item-path {
  font-size: 0.75rem;
  line-height: 1rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--text-tertiary);
}

.dir-item {
  display: flex;
  width: 100%;
  align-items: center;
  justify-content: space-between;
  border-radius: 3px;
  border: 1px solid;
  padding: var(--card-padding-sm-y) var(--card-padding-sm-x);
  font-size: 0.875rem;
  line-height: 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
  transition: background-color 150ms ease, border-color 150ms ease;
}

.dir-item--expanded {
  border-color: var(--border-strong);
  background-color: var(--surface-inset);
}

.dir-item--collapsed {
  border-color: var(--border-subtle);
  background-color: var(--surface-2);
}

.dir-item--collapsed:hover {
  border-color: var(--border-strong);
  background-color: var(--surface-inset);
}

.dir-toggle {
  font-size: 0.75rem;
  line-height: 1rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--text-tertiary);
}

/* Metadata and labels */
.item-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.75rem;
  line-height: 1rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--text-tertiary);
}

.item-meta--label {
  display: flex;
  align-items: center;
  gap: var(--item-gap);
  font-size: 0.75rem;
  line-height: 1rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--text-tertiary);
}

.item-id {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 11px;
  color: var(--text-secondary);
}

.item-timestamp {
  font-size: 0.75rem;
  line-height: 1rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--text-tertiary);
}

/* Item content */
.item-title {
  margin-top: var(--item-spacing);
  font-size: 1rem;
  line-height: 1.5rem;
  font-weight: 600;
  color: var(--text-primary);
}

.item-description {
  margin-top: var(--item-spacing-sm);
  font-size: 0.875rem;
  line-height: 1.25rem;
  color: var(--text-secondary);
}

.item-preview {
  margin-top: var(--item-gap);
  max-height: 4rem;
  overflow: hidden;
  text-overflow: ellipsis;
  font-size: 1rem;
  line-height: 1.5rem;
  font-weight: 500;
  color: var(--text-primary);
}

/* Tags and badges */
.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--item-gap-sm);
  margin-top: var(--item-gap);
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--text-tertiary);
}

.tag-list--meta {
  margin-top: var(--item-spacing);
  letter-spacing: 0.18em;
}

.tag {
  border-radius: 2px;
  background-color: var(--surface-3);
  padding: 0.125rem var(--tag-padding-x);
}

.tag--role {
  border-radius: 2px;
  padding: 0.125rem var(--tag-padding-x);
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
}

.tag--role-assistant { background-color: var(--accent-neutral-soft); color: var(--accent-neutral-strong); }
.tag--role-tool { background-color: var(--accent-positive-soft); color: var(--accent-positive-strong); }
.tag--role-user { background-color: var(--accent-neutral-soft); color: var(--accent-neutral-strong); }

.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--item-gap-sm);
  border-radius: 2px;
  padding: 0.125rem var(--tag-padding-x);
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--text-primary);
}

.badge--positive { background-color: var(--accent-positive-soft); color: var(--accent-positive-strong); }
.badge--warning { background-color: var(--accent-warning-soft); color: var(--accent-warning-strong); }
.badge--critical { background-color: var(--accent-critical-soft); color: var(--accent-critical-strong); }
.badge--neutral { background-color: var(--accent-neutral-soft); color: var(--accent-neutral-strong); }

.badge--large {
  border-radius: 3px;
  padding: var(--input-padding-y) var(--button-padding-x);
  font-size: 0.875rem;
  line-height: 1.25rem;
}

.badge-dot {
  height: 0.5rem;
  width: 0.5rem;
  border-radius: 9999px;
  background-color: currentColor;
}

.badge-dot--small {
  height: 0.375rem;
  width: 0.375rem;
}

/* Content blocks */
.content-block {
  border-radius: 3px;
  border: 1px solid var(--border-subtle);
  background-color: var(--surface-2);
  padding: var(--panel-padding);
  font-size: 1rem;
  line-height: 1.5rem;
  color: var(--text-primary);
  box-shadow: inset 0 2px 4px 0 rgb(0 0 0 / 0.05);
}

.content-block--code {
  background-color: var(--surface-inset);
  font-size: 0.875rem;
  line-height: 1.25rem;
}

.content-block--overlay {
  background-color: var(--surface-overlay);
  font-size: 0.875rem;
  line-height: 1.25rem;
}

.content-block-header {
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--text-secondary);
}

.content-block-body {
  margin-top: var(--item-gap);
  overflow-x: auto;
  white-space: pre-wrap;
  color: var(--text-secondary);
}

/* Info section */
.info-section {
  display: flex;
  flex-direction: column;
  gap: var(--item-gap);
  border-radius: 3px;
  border: 1px solid var(--border-subtle);
  background-color: var(--surface-inset);
  padding: var(--inset-padding);
}

.info-section-title {
  font-size: 0.75rem;
  line-height: 1rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--text-tertiary);
}

.info-section-content {
  font-size: 0.875rem;
  line-height: 1.25rem;
  color: var(--text-tertiary);
}

.info-section-list {
  display: flex;
  flex-direction: column;
  gap: var(--item-gap-xs);
  font-size: 0.875rem;
  line-height: 1.25rem;
  color: var(--text-secondary);
}

.info-section-list-item {
  display: flex;
  align-items: center;
  gap: var(--item-gap);
}

.info-section-bullet {
  height: 0.375rem;
  width: 0.375rem;
  border-radius: 9999px;
  background-color: var(--border-subtle);
}

/* Empty state */
.empty-state {
  display: flex;
  height: 100%;
  width: 100%;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  border-radius: 4px;
  border: 1px dashed var(--border-subtle);
  background-color: var(--surface-2);
  text-align: center;
  font-size: 1rem;
  line-height: 1.5rem;
  color: var(--text-tertiary);
}

.empty-state-subtitle {
  font-size: 0.875rem;
  line-height: 1.25rem;
  color: var(--text-tertiary);
  opacity: 0.8;
}

/* Panel menu */
.panel-menu {
  display: inline-flex;
  align-items: center;
  gap: var(--item-gap-sm);
  font-size: 0.75rem;
  line-height: 1rem;
  color: var(--text-tertiary);
  pointer-events: auto;
}

.panel-menu-title {
  font-size: 0.85rem;
  line-height: 1rem;
  color: var(--text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 20rem;
  padding-left: var(--space-5);
}

.panel-menu-controls {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--text-tertiary);
}

.panel-menu-controls .btn {
  width: 1.5rem;
  height: 1.5rem;
  padding: 0.25rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-transform: none;
  letter-spacing: normal;
}

/* Workspace controls */
.workspace-message {
  font-size: 0.75rem;
  line-height: 1rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--text-tertiary);
  pointer-events: none;
}

/* Panel wrapper */
.workspace-inner [data-panel] {
  display: flex;
  flex-direction: column;
  min-height: 0;
  min-width: 0;
}

.workspace-inner [data-panel] > * {
  flex: 1 1 0%;
  min-height: 0;
  min-width: 0;
}

.panel-wrapper {
  position: relative;
  display: flex;
  min-height: 0;
  width: 100%;
  flex: 1 1 0%;
  flex-direction: column;
  border-radius: 4px;
  border: 1px solid var(--border-subtle);
  background-color: var(--surface-2);
  box-shadow: var(--shadow-elevated);
  overflow: hidden;
}

.panel-wrapper.is-focused {
  border-color: var(--border-strong);
}

.panel-menu-anchor {
  position: absolute;
  right: var(--panel-padding);
  top: var(--panel-padding);
  z-index: 40;
  pointer-events: none;
}

.panel-drag-handle {
  position: absolute;
  left: var(--control-offset);
  top: var(--control-offset);
  z-index: 25;
  pointer-events: auto;
}

.panel-drag-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.75rem;
  height: 1.75rem;
  border-radius: 0.5rem;
  border: 1px solid var(--border-subtle);
  background-color: var(--surface-2);
  color: var(--text-tertiary);
  cursor: grab;
  transition: background-color 150ms ease, border-color 150ms ease, color 150ms ease, box-shadow 150ms ease;
  pointer-events: auto;
}

.panel-drag-button:hover {
  border-color: var(--border-strong);
  color: var(--text-primary);
}

.panel-drag-button.is-dragging {
  cursor: grabbing;
  background-color: var(--surface-3);
  border-color: var(--border-strong);
  color: var(--text-primary);
  box-shadow: 0 0 0 1px var(--border-strong), 0 8px 18px rgba(0, 0, 0, 0.3);
}

.panel-drag-button:active {
  cursor: grabbing;
}

.panel-drag-icon {
  display: inline-block;
  width: 0.75rem;
  height: 0.75rem;
  background-image:
    radial-gradient(currentColor 12%, transparent 13%),
    radial-gradient(currentColor 12%, transparent 13%),
    radial-gradient(currentColor 12%, transparent 13%),
    radial-gradient(currentColor 12%, transparent 13%);
  background-size: 50% 50%;
  background-position:
    0 0,
    100% 0,
    0 100%,
    100% 100%;
  background-repeat: no-repeat;
}

/* Unified panel header */
.panel-header-bar {
  position: relative;
  display: flex;
  align-items: center;
  padding: var(--panel-padding);
  background-color: transparent;
  cursor: grab;
  user-select: none;
  z-index: 30;
}

.panel-header-bar:active {
  cursor: grabbing;
}

.panel-header-bar.is-dragging {
  cursor: grabbing;
  opacity: 0.8;
}

.panel-header-title {
  font-size: 0.9375rem;
  line-height: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  pointer-events: none;
}

.panel-wrapper.is-drag-source {
  opacity: 0.92;
}

.panel-wrapper.is-drop-target {
  border-color: var(--border-strong);
  box-shadow: 0 0 0 1px var(--border-strong);
}

.panel-drop-overlay {
  position: absolute;
  inset: calc(-1 * var(--panel-padding));
  pointer-events: none;
  z-index: 60;
}

.panel-drop-preview {
  position: absolute;
  inset: var(--space-1);
  border-radius: 8px;
  pointer-events: none;
}

.panel-drop-preview--center {
  inset: var(--space-1);
}

.panel-drop-preview__pane {
  width: 100%;
  height: 100%;
  border-radius: inherit;
  border: 1px dashed var(--border-subtle);
  background-color: var(--surface-overlay);
  transition: border-color 150ms ease, background-color 150ms ease, box-shadow 150ms ease;
}

.panel-drop-preview__pane--full {
  border-radius: inherit;
}

.panel-wrapper.is-drop-target .panel-drop-preview__pane {
  background-color: var(--accent-neutral-soft);
  border-color: var(--accent-neutral-strong);
  box-shadow: 0 0 0 1px var(--accent-neutral-strong);
}

.panel-content-wrapper {
  display: flex;
  min-height: 0;
  width: 100%;
  flex: 1 1 0%;
  overflow: auto;
  padding: 0 var(--panel-padding) var(--panel-padding);
  pointer-events: auto;
}

/* Workspace background */
.workspace-background {
  position: relative;
  display: flex;
  width: 100%;
  min-height: 0;
  flex: 1 1 0%;
  flex-direction: column;
  background-color: var(--surface-0);
}

.workspace-top-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--item-gap);
  padding: var(--item-gap);
  padding-left: calc(var(--panel-padding) * 2);
  padding-right: calc(var(--panel-padding) * 2);
  border-bottom: 1px solid var(--border-subtle);
  background-color: var(--surface-1);
  z-index: 10;
}

.workspace-tabs {
  display: flex;
  align-items: center;
  gap: var(--item-gap);
  min-width: 0;
}

.workspace-tab-list {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  min-width: 0;
  overflow-x: auto;
  scrollbar-width: thin;
}

.workspace-tab-list::-webkit-scrollbar {
  height: 6px;
}

.workspace-tab-list::-webkit-scrollbar-thumb {
  border-radius: 9999px;
  background-color: rgba(148, 163, 184, 0.24);
}

.workspace-tab {
  display: flex;
  align-items: stretch;
  flex: 0 1 var(--workspace-tab-width, 18rem);
  min-width: var(--workspace-tab-min-width, 7rem);
}

.workspace-tab-trigger {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 0;
  border-radius: 3px;
  border: 1px solid;
  padding: 0.35rem 0.5rem;
  font-size: 0.75rem;
  line-height: 1rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  background-color: var(--button-bg);
  border-color: var(--border-subtle);
  color: var(--text-primary);
  cursor: pointer;
  white-space: nowrap;
  width: 100%;
  min-width: 0;
  transition: background-color 150ms ease, border-color 150ms ease, color 150ms ease;
}

.workspace-tab-trigger:hover {
  background-color: var(--button-bg-hover);
  border-color: var(--border-strong);
}

.workspace-tab.is-active .workspace-tab-trigger {
  background-color: var(--button-bg-hover);
  border-color: var(--border-strong);
}

.workspace-tab-close {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 1rem;
  width: 1rem;
  border-radius: 2px;
  border: none;
  background: transparent;
  color: var(--text-tertiary);
  padding: 0;
  text-transform: none;
  letter-spacing: normal;
  transition: background-color 150ms ease, color 150ms ease;
  flex-shrink: 0;
  margin-left: auto;
}

.workspace-tab-close:hover {
  background-color: var(--accent-critical-soft);
  color: var(--accent-critical-strong);
}

.workspace-tab-label {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  text-align: left;
  padding-right: 0.25rem;
}

.workspace-tab.is-editing .workspace-tab-trigger {
  cursor: default;
}

.workspace-tab-editor {
  background-color: var(--button-bg);
}

.workspace-tab-input {
  flex: 1;
  min-width: 0;
  background: transparent;
  border: none;
  color: inherit;
  font: inherit;
  letter-spacing: inherit;
  text-transform: none;
  outline: none;
  padding: 0;
}

.workspace-tab-input::placeholder {
  color: var(--text-tertiary);
}

.workspace-tab-add {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 1.5rem;
  width: 1.5rem;
  border-radius: 3px;
  text-transform: none;
  letter-spacing: normal;
  padding: 0;
}

.workspace-controls {
  display: flex;
  align-items: center;
  gap: var(--item-gap);
}

.workspace-wrapper {
  padding: calc(var(--panel-padding) * 2);
}

.workspace-content {
  display: flex;
  min-height: 0;
  width: 100%;
  flex: 1 1 0%;
  gap: var(--panel-gap);
  position: relative;
}

.workspace-edge-handle {
  position: absolute;
  z-index: 3;
  display: block;
}

.workspace-edge-handle::after {
  content: '';
  position: absolute;
  opacity: 0.4;
  background: var(--divider-strong);
  pointer-events: none;
  transition: opacity 0.15s ease, background-color 0.15s ease;
}

.workspace-edge-handle--left,
.workspace-edge-handle--right {
  top: 0;
  bottom: 0;
  width: 12px;
  cursor: col-resize;
}

.workspace-edge-handle--left {
  left: 0;
}

.workspace-edge-handle--right {
  right: 0;
}

.workspace-edge-handle--left::after,
.workspace-edge-handle--right::after {
  top: 0;
  bottom: 0;
  width: 2px;
  left: 50%;
  transform: translateX(-50%);
  border-radius: 999px;
}

.workspace-edge-handle--top,
.workspace-edge-handle--bottom {
  left: 0;
  right: 0;
  height: 12px;
  cursor: row-resize;
}

.workspace-edge-handle--top {
  top: 0;
}

.workspace-edge-handle--bottom {
  bottom: 0;
}

.workspace-edge-handle--top::after,
.workspace-edge-handle--bottom::after {
  left: 0;
  right: 0;
  height: 2px;
  top: 50%;
  transform: translateY(-50%);
  border-radius: 999px;
}

.workspace-edge-handle:hover::after,
.workspace-content[data-edge-dragging='true'] .workspace-edge-handle::after {
  opacity: 0.9;
  background: var(--divider-emphasis, var(--divider-strong));
}

.workspace-edge-preview {
  position: absolute;
  pointer-events: none;
  display: flex;
  align-items: stretch;
  justify-content: stretch;
  opacity: 0.35;
  transition: opacity 0.12s ease, transform 0.12s ease;
  z-index: 2;
}

.workspace-edge-preview[data-eligible='true'] {
  opacity: 1;
}

.workspace-edge-preview--left,
.workspace-edge-preview--right {
  top: var(--panel-gap);
  bottom: var(--panel-gap);
}

.workspace-edge-preview--left {
  left: var(--panel-gap);
}

.workspace-edge-preview--right {
  right: var(--panel-gap);
}

.workspace-edge-preview--top,
.workspace-edge-preview--bottom {
  left: var(--panel-gap);
  right: var(--panel-gap);
}

.workspace-edge-preview--top {
  top: var(--panel-gap);
}

.workspace-edge-preview--bottom {
  bottom: var(--panel-gap);
}

.workspace-edge-placeholder {
  flex: 1 1 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px dashed var(--border-strong);
  border-radius: 8px;
  background: rgba(244, 244, 245, 0.05);
  color: var(--text-tertiary);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-align: center;
}

/* Form controls */
.form-label {
  display: flex;
  align-items: center;
  gap: var(--item-gap-sm);
  font-weight: 600;
  color: var(--text-secondary);
}

.form-label-text {
  font-size: 0.75rem;
  line-height: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
}

.form-controls {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--item-gap-lg);
  font-size: 0.875rem;
  line-height: 1.25rem;
  color: var(--text-secondary);
}

/* App panel specific */
.app-panel-content {
  display: flex;
  flex: 1;
  min-height: 0;
  width: 100%;
}

.app-panel-iframe {
  width: 100%;
  height: 100%;
  border: none;
  flex: 1;
}

.app-panel-empty {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
}

.app-panel-loading {
  color: var(--text-tertiary);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  opacity: 0.4;
}

.app-panel-error {
  color: var(--text-tertiary);
  font-size: 96px;
  font-weight: 700;
  letter-spacing: 0.08em;
  opacity: 0.1;
}

.app-panel-url-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding: var(--space-2) var(--panel-padding);
  border-top: 1px solid var(--border-subtle);
  background-color: var(--surface-inset);
  overflow: hidden;
}

.app-panel-url-text {
  flex: 1;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.75rem;
  line-height: 1rem;
  color: var(--text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.app-panel-console {
  display: flex;
  flex-direction: column;
  max-height: 300px;
  border-top: 1px solid var(--border-strong);
  background-color: var(--surface-2);
}

.app-panel-console-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-2) var(--panel-padding);
  border-bottom: 1px solid var(--border-subtle);
  background-color: var(--surface-3);
}

.app-panel-console-title {
  font-size: 0.75rem;
  line-height: 1rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--text-primary);
}

.app-panel-console-messages {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-2);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.75rem;
  line-height: 1.5;
}

.app-panel-console-empty {
  padding: var(--space-4);
  text-align: center;
  color: var(--text-tertiary);
  font-style: italic;
}

.app-panel-console-message {
  display: flex;
  gap: var(--space-3);
  padding: var(--space-1) var(--space-2);
  border-radius: 2px;
  margin-bottom: var(--space-1);
}

.app-panel-console-message--log {
  color: var(--text-primary);
}

.app-panel-console-message--info {
  color: var(--accent-neutral-strong);
  background-color: var(--accent-neutral-soft);
}

.app-panel-console-message--warn {
  color: var(--accent-warning-strong);
  background-color: var(--accent-warning-soft);
}

.app-panel-console-message--error {
  color: var(--accent-critical-strong);
  background-color: var(--accent-critical-soft);
}

.app-panel-console-timestamp {
  flex-shrink: 0;
  color: var(--text-tertiary);
  font-size: 0.6875rem;
}

.app-panel-console-content {
  flex: 1;
  word-break: break-word;
}

/* Agent panel specific */
.agent-status-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: var(--panel-padding);
  font-size: 0.875rem;
  line-height: 1.25rem;
}

.agent-status-connection {
  font-weight: 500;
  color: var(--text-tertiary);
}

.agent-models-menu-container {
  position: relative;
  display: inline-flex;
}

/* Context Menu */
.context-menu {
  z-index: 50;
  min-width: 12rem;
  border-radius: 3px;
  border: 1px solid var(--border-strong);
  background-color: var(--surface-overlay);
  box-shadow: var(--shadow-elevated);
  backdrop-filter: blur(12px);
}

.context-menu--bottom-right,
.context-menu--top-right {
  transform: translateX(-100%);
}

.context-menu--top-left,
.context-menu--top-right {
  transform: translateY(-100%);
}

.context-menu-content {
  display: flex;
  flex-direction: column;
  padding: var(--space-1);
}

.context-menu-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  width: 100%;
  padding: var(--space-2) var(--space-3);
  font-size: 0.875rem;
  font-weight: 500;
  text-align: left;
  color: var(--text-primary);
  background: none;
  border: none;
  border-radius: 2px;
  cursor: pointer;
  transition: background-color 150ms ease, color 150ms ease;
}

.context-menu-item:hover {
  background-color: var(--surface-3);
  color: var(--text-primary);
}

.context-menu-item:active {
  background-color: var(--surface-inset);
}

.context-menu-item--checked {
  background-color: var(--surface-3);
}

.context-menu-item-check {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1rem;
  font-size: 0.875rem;
  color: var(--accent-positive-strong);
  flex-shrink: 0;
}

.context-menu-item-label {
  flex: 1;
}

/* Message metadata */
.message-metadata {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: var(--space-2);
  padding: var(--space-3) var(--panel-padding-lg);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.8125rem;
  line-height: 1.5;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border-subtle);
  background-color: var(--surface-inset);
}

.message-metadata-key {
  font-weight: 600;
  color: var(--text-primary);
}

.message-metadata-separator {
  color: var(--text-tertiary);
  opacity: 0.5;
}

/* Message detail header */
.message-detail-header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--item-gap-lg);
}

.message-detail-meta {
  min-width: 0;
}

.message-detail-badges {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--item-gap);
  font-size: 0.75rem;
  line-height: 1rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--text-tertiary);
}

.message-detail-version {
  border-radius: 2px;
  background-color: var(--surface-3);
  padding: 0.125rem 0.5rem;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 11px;
  color: var(--text-tertiary);
}

.message-detail-tools {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: var(--item-gap-sm);
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--text-tertiary);
}

.message-detail-content {
  display: flex;
  flex: 1 1 0%;
  width: 100%;
  min-height: 0;
  flex-direction: column;
  gap: var(--item-gap-lg);
  overflow: auto;
  padding: var(--panel-padding) var(--panel-padding-lg);
}


/* Component classes */
.panel-shell {
  display: flex;
  flex: 1;
  min-height: 0;
  width: 100%;
  flex-direction: column;
  color: var(--text-primary);
}

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-left: var(--panel-padding-lg);
  padding-right: var(--panel-padding-lg);
  padding-top: var(--panel-padding);
  padding-bottom: var(--panel-padding);
  border-color: var(--border-strong);
}

.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  white-space: nowrap;
  border-radius: 3px;
  border: 1px solid;
  padding-left: var(--button-padding-x);
  padding-right: var(--button-padding-x);
  padding-top: 0.375rem;
  padding-bottom: 0.375rem;
  font-size: 0.75rem;
  line-height: 1rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  transition-property: color, background-color, border-color, text-decoration-color, fill, stroke;
  transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
  transition-duration: 150ms;
  background-color: var(--button-bg);
  border-color: var(--border-subtle);
  color: var(--text-primary);
  overflow: hidden;
}

.btn:hover {
  background-color: var(--button-bg-hover);
  border-color: var(--border-strong);
}

.toggle-btn {
  gap: var(--space-2);
}

/* Radial sheen effect for panel-controls buttons */
.panel-controls .btn::before {
  content: '';
  position: absolute;
  top: var(--sheen-y, 50%);
  left: var(--sheen-x, 50%);
  width: 0;
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(
    circle,
    rgba(255, 255, 255, 0.3) 0%,
    rgba(255, 255, 255, 0.1) 50%,
    transparent 100%
  );
  transform: translate(-50%, -50%);
  pointer-events: none;
  opacity: 0;
}

.panel-controls .btn.sheen-active::before {
  animation: sheen-radial 0.5s ease-out;
}

@keyframes sheen-radial {
  0% {
    width: 0;
    opacity: 1;
  }
  100% {
    width: 400%;
    opacity: 0;
  }
}

.btn-close-panel:hover {
  background-color: var(--accent-critical-soft);
  border-color: var(--accent-critical-strong);
  color: var(--accent-critical-strong);
}

.btn-positive {
  background-color: var(--accent-positive-soft);
  border-color: var(--accent-positive-strong);
  color: var(--accent-positive-strong);
}

.btn-positive:hover {
  background-color: var(--accent-positive-soft-hover);
}

.btn-warning {
  background-color: var(--accent-warning-soft);
  border-color: var(--accent-warning-strong);
  color: var(--accent-warning-strong);
}

.btn-warning:hover {
  background-color: var(--accent-warning-soft-hover);
}

.btn--delete:hover {
  background-color: var(--accent-critical-strong);
}

.btn-critical {
  background-color: var(--accent-critical-soft);
  border-color: var(--accent-critical-strong);
  color: var(--accent-critical-strong);
}

.btn-critical:hover {
  background-color: var(--accent-critical-soft-hover);
}

.btn--toggle {
  gap: var(--item-gap-sm);
}

.btn--toggle .badge-dot {
  background-color: var(--text-tertiary);
  transition: background-color 150ms ease;
}

.btn--toggle[data-active="true"] .badge-dot {
  background-color: var(--accent-positive-strong);
}

.btn-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 3px;
  border: 1px solid;
  padding-left: var(--input-padding-x);
  padding-right: var(--input-padding-x);
  padding-top: var(--input-padding-y);
  padding-bottom: var(--input-padding-y);
  font-size: 0.75rem;
  line-height: 1rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  transition-property: color, background-color, border-color, text-decoration-color, fill, stroke;
  transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
  transition-duration: 150ms;
  background-color: transparent;
  border-color: transparent;
  color: var(--text-tertiary);
}

.btn-ghost:hover {
  background-color: var(--surface-3);
  border-color: var(--border-subtle);
  color: var(--text-primary);
}

.btn-ghost-critical {
  color: var(--accent-critical-strong);
}

.btn-ghost-critical:hover {
  background-color: var(--accent-critical-soft);
  border-color: var(--accent-critical-strong);
  color: var(--accent-critical-strong);
}

.btn-ghost.disabled,
.btn-ghost-critical.disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.input-surface {
  border-radius: 3px;
  border: 1px solid;
  padding-left: var(--input-padding-x);
  padding-right: var(--input-padding-x);
  padding-top: var(--input-padding-y);
  padding-bottom: var(--input-padding-y);
  font-size: 0.75rem;
  line-height: 1rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  transition-property: color, background-color, border-color, text-decoration-color, fill, stroke;
  transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
  transition-duration: 150ms;
  background-color: var(--surface-3);
  border-color: var(--border-subtle);
  color: var(--text-primary);
}

.input-surface:focus {
  outline: none;
  border-color: var(--border-strong);
  box-shadow: 0 0 0 1px var(--border-strong);
}

.input-checkbox {
  width: 16px;
  height: 16px;
  border-radius: 4px;
  border: 1px solid var(--border-subtle);
  background-color: var(--surface-3);
  accent-color: var(--accent-positive-strong);
}

.panel-resize-handle {
  position: relative;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--resize-handle-bg);
  transition: background-color 150ms ease;
}

.panel-resize-handle::after {
  content: "";
  display: block;
  border-radius: 9999px;
  background: linear-gradient(180deg, var(--resize-handle-grip-top), var(--resize-handle-grip-bottom));
  box-shadow: 0 0 0 1px rgba(15, 15, 23, 0.25);
}

.panel-resize-handle[data-orientation="horizontal"] {
  width: 4px;
  min-width: 4px;
  height: 100%;
}

.panel-resize-handle[data-orientation="horizontal"]::after {
  width: 2px;
  height: 40px;
}

.panel-resize-handle[data-orientation="vertical"] {
  height: 4px;
  min-height: 4px;
  width: 100%;
}

.panel-resize-handle[data-orientation="vertical"]::after {
  height: 2px;
  width: 40px;
}

.panel-resize-handle:hover {
  background-color: var(--resize-handle-hover);
}

/* Prompt panel specific */
.prompt-panel {
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.prompt-wrapper {
  display: flex;
  flex-direction: column;
  height: 100%;
  overflow: hidden;
}

.prompt-search-indicator {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--item-gap);
  padding: var(--space-2) var(--inset-padding);
  border-radius: 3px;
  border: 1px solid var(--border-strong);
  background-color: var(--accent-neutral-soft);
  margin-bottom: var(--item-gap);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.8125rem;
  line-height: 1.5;
}

.prompt-search-label {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--text-primary);
  font-weight: 600;
}

.prompt-search-query {
  display: inline-block;
  padding: 0.125rem var(--space-2);
  border-radius: 2px;
  background-color: var(--surface-inset);
  color: var(--accent-neutral-strong);
  font-weight: 700;
  letter-spacing: 0.02em;
}

.prompt-search-matches {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent-positive-strong);
  padding: 0.125rem var(--space-2);
  border-radius: 2px;
  background-color: var(--accent-positive-soft);
}

.prompt-search-no-matches {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent-warning-strong);
  padding: 0.125rem var(--space-2);
  border-radius: 2px;
  background-color: var(--accent-warning-soft);
}

.prompt-container {
  display: flex;
  flex-direction: column;
  gap: var(--item-gap);
  flex: 1;
  min-height: 0;
  overflow: hidden;
}

.prompt-textarea-wrapper {
  position: relative;
  width: 100%;
  flex: 1;
  min-height: 0;
  overflow: hidden;
}

.prompt-textarea {
  position: relative;
  width: 100%;
  height: 100%;
  border-radius: 3px;
  border: 1px solid var(--border-subtle);
  background-color: var(--surface-inset);
  padding: var(--inset-padding);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.875rem;
  line-height: 1.5;
  color: var(--text-primary);
  resize: none;
  overflow: auto;
  z-index: 1;
}

.prompt-textarea:focus {
  outline: none;
  border-color: var(--border-strong);
  box-shadow: 0 0 0 1px var(--border-strong);
}

.prompt-textarea::placeholder {
  color: var(--text-tertiary);
  opacity: 0.7;
}

.prompt-textarea:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.prompt-highlight-overlay {
  position: absolute;
  top: 1px;
  left: 1px;
  right: 1px;
  bottom: 1px;
  padding: var(--inset-padding);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.875rem;
  line-height: 1.5;
  color: transparent;
  pointer-events: none;
  overflow: hidden;
  white-space: pre-wrap;
  word-wrap: break-word;
  word-break: break-word;
  z-index: 2;
}

.prompt-highlight-match {
  background-color: rgba(251, 191, 36, 0.35);
  color: transparent;
  border-radius: 2px;
}

.prompt-actions {
  display: flex;
  justify-content: flex-end;
  flex-shrink: 0;
}

/* Chat panel specific */
.chat-panel-wrapper {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-height: 0;
  overflow: hidden;
}

.chat-messages-container {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  padding: 0;
}

.chat-messages-list {
  display: flex;
  flex-direction: column;
  gap: var(--item-gap-lg);
}

.chat-message {
  display: flex;
  flex-direction: column;
  max-width: 80%;
  gap: var(--item-gap-xs);
}

.chat-message--user {
  align-self: flex-end;
  align-items: flex-end;
  padding-right: var(--space-3);
}

.chat-message--assistant {
  align-self: flex-start;
  align-items: flex-start;
}

.chat-message-content {
  display: grid;
  border-radius: 3px;
  border: 1px solid var(--border-subtle);
  padding: var(--inset-padding);
  width: 100%;
}

.chat-message-copy-controls {
  grid-area: 1 / 1;
  justify-self: end;
  align-self: start;
  display: flex;
  justify-content: flex-end;
  align-items: center;
  position: sticky;
  top: var(--panel-padding);
  margin-left: auto;
  opacity: 0;
  pointer-events: none;
  transition: opacity 120ms ease-out;
  z-index: 1;
}

.chat-message-copy-controls.panel-controls {
  padding: 0;
  gap: 0;
  flex-wrap: nowrap;
}

.chat-message-content:hover .chat-message-copy-controls,
.chat-message-copy-controls:focus-within {
  opacity: 1;
  pointer-events: auto;
}

.chat-message-copy-controls .btn {
  min-height: 1.5rem;
  padding: 0 var(--tag-padding-x);
}

.chat-message--user .chat-message-content {
  background-color: var(--surface-3);
  border-color: var(--border-strong);
}

.chat-message--assistant .chat-message-content {
  background-color: var(--surface-inset);
  border-color: var(--border-subtle);
}

.chat-message-text {
  grid-area: 1 / 1;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.875rem;
  line-height: 1.5;
  color: var(--text-primary);
  white-space: pre-wrap;
  word-break: break-word;
}

.chat-message-timestamp {
  font-size: 0.75rem;
  line-height: 1rem;
  color: var(--text-tertiary);
  padding: 0 var(--input-padding-x);
}

.chat-message-badges-line {
  display: flex;
  flex-wrap: wrap;
  gap: var(--badge-gap);
  padding: var(--panel-padding);
}

.tool-call-badge {
  position: relative;
  display: inline-flex;
  align-items: center;
}

.tool-call-badge-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 2px;
  border: none;
  padding: 0.125rem var(--tag-padding-x);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.16em;
  background-color: var(--accent-positive-soft);
  color: var(--accent-positive-strong);
  cursor: pointer;
  transition: background-color 150ms ease, color 150ms ease;
}

.tool-call-badge-button:hover {
  background-color: var(--accent-positive-soft-hover);
}

.tool-call-badge-details {
  position: fixed;
  z-index: 100;
  min-width: 20rem;
  max-width: 40rem;
  max-height: 80vh;
  overflow: auto;
  border-radius: 3px;
  border: 1px solid var(--border-strong);
  background-color: var(--surface-overlay);
  box-shadow: var(--shadow-elevated);
  backdrop-filter: blur(12px);
}

.tool-call-block {
  display: flex;
  flex-direction: column;
  gap: var(--item-gap-xs);
  border-radius: 3px;
  border: 1px solid var(--border-subtle);
  background-color: var(--surface-2);
  padding: var(--item-spacing);
}

.tool-call-toggle {
  display: flex;
  align-items: center;
  gap: var(--item-gap-xs);
  border: none;
  background: none;
  padding: var(--item-spacing-sm);
  font-size: 0.75rem;
  line-height: 1rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--text-tertiary);
  cursor: pointer;
  text-align: left;
}

.tool-call-toggle:hover {
  color: var(--text-primary);
}

.tool-call-collapsed {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.75rem;
  line-height: 1.25rem;
  color: var(--text-secondary);
  padding: var(--item-spacing);
  overflow: hidden;
  text-overflow: ellipsis;
}

.tool-call-code {
  margin: 0;
  border-radius: 3px;
  background-color: var(--surface-inset);
  padding: var(--inset-padding);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.75rem;
  line-height: 1.5;
  color: var(--text-primary);
  overflow-x: auto;
}

.tool-call-code code {
  font-family: inherit;
  font-size: inherit;
  line-height: inherit;
}

.tool-call-result-heading {
  margin: var(--space-4) var(--inset-padding) var(--space-2);
  font-size: 0.75rem;
  line-height: 1rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--text-tertiary);
}

.tool-call-result {
  margin-top: var(--space-2);
}

/* File Panel */
.file-panel-container {
  position: relative;
  display: flex;
  flex-direction: column;
  width: 100%;
  height: 100%;
  min-height: 0;
}

.file-panel-header {
  position: absolute;
  top: var(--space-4);
  left: var(--panel-padding);
  z-index: 20;
  padding: var(--space-2) var(--space-3);
  border-radius: 3px;
  background-color: rgba(0, 0, 0, 0.5);
  opacity: 0;
  transition: opacity 400ms ease;
  pointer-events: none;
}

.file-panel-container:hover .file-panel-header,
.file-panel-header--visible {
  opacity: 1;
}

.file-panel-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

.file-panel-content {
  display: flex;
  flex: 1;
  min-height: 0;
  width: 100%;
}

/* Text Content Viewer */
.text-content-viewer {
  position: relative;
  display: flex;
  flex-direction: column;
  width: 100%;
  height: 100%;
  border-radius: 3px;
  border: 1px solid var(--border-subtle);
  background-color: var(--surface-2);
  overflow: hidden;
}

.text-content-viewer__toolbar {
  position: absolute;
  top: var(--space-4);
  right: var(--space-6);
  z-index: 10;
  display: flex;
  gap: var(--item-gap-sm);
  opacity: 0;
  transition: opacity 400ms ease;
}

.text-content-viewer:hover .text-content-viewer__toolbar,
.text-content-viewer--editing .text-content-viewer__toolbar {
  opacity: 1;
}

.text-content-viewer__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 2px;
  border: 1px solid transparent;
  padding: 0.25rem var(--button-padding-x);
  font-size: 0.6875rem;
  line-height: 1rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  transition: background-color 300ms ease, border-color 300ms ease, color 300ms ease;
  background-color: transparent;
  color: var(--text-primary);
  cursor: pointer;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.6);
}

.text-content-viewer__btn:hover:not(:disabled) {
  background-color: var(--surface-3);
  border-color: var(--border-subtle);
  color: var(--text-primary);
  text-shadow: none;
}

.text-content-viewer__btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.text-content-viewer__content {
  display: flex;
  flex: 1;
  min-height: 0;
  width: 100%;
  overflow: hidden;
}

.text-content-viewer__editor {
  position: relative;
  width: 100%;
  height: 100%;
  min-height: 0;
  background-color: var(--surface-2);
  overflow: hidden;
  box-sizing: border-box;
  padding: var(--panel-padding);
}

.text-content-viewer__editor--monaco {
  flex: 1;
}

.text-content-viewer__editor--textarea {
  flex: 1;
  width: 100%;
  height: 100%;
  min-height: 0;
  border: none;
  outline: none;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.875rem;
  line-height: 1.5;
  color: var(--text-primary);
  resize: none;
  overflow: auto;
}

.text-content-viewer__display {
  width: 100%;
  height: 100%;
  margin: 0;
  padding: var(--panel-padding);
  overflow: auto;
  background-color: var(--surface-2);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.875rem;
  line-height: 1.5;
  color: var(--text-primary);
}

.text-content-viewer__display code {
  font-family: inherit;
  font-size: inherit;
  line-height: inherit;
  color: inherit;
}

.text-content-viewer__display--lines {
  padding: 0;
}

.text-content-viewer__code--lines {
  display: flex;
  flex-direction: column;
  width: 100%;
  min-height: 100%;
  gap: 0;
  padding: var(--panel-padding);
  box-sizing: border-box;
}

.text-content-viewer__line {
  display: grid;
  grid-template-columns: minmax(3ch, auto) 1fr;
  column-gap: var(--space-3);
  padding: 0 var(--space-1);
  min-height: 1.5rem;
}

.text-content-viewer__line-number {
  text-align: right;
  color: var(--text-tertiary);
  font-variant-numeric: tabular-nums;
  padding-right: var(--space-2);
  user-select: none;
}

.text-content-viewer__line-content {
  white-space: pre;
}

.text-content-viewer__line--focused {
  background-color: var(--surface-2);
}

.text-content-viewer__line--focused .text-content-viewer__line-number {
  color: var(--text-primary);
}

.text-content-viewer__match {
  background-color: var(--accent-neutral-soft);
  color: var(--text-primary);
  border-radius: 2px;
  padding: 0 var(--space-1);
}

/* Diff panel */
.diff-panel {
  display: flex;
  flex-direction: column;
  height: 100%;
  gap: var(--panel-gap);
}

.diff-panel__toggle-group {
  display: inline-flex;
  border: 1px solid var(--border-subtle);
  border-radius: 3px;
  overflow: hidden;
}

.diff-panel__toggle {
  border: none;
  background-color: transparent;
  color: var(--text-secondary);
  padding: var(--input-padding-y) var(--button-padding-x);
  font-size: 0.75rem;
  line-height: 1rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  cursor: pointer;
  transition: background-color 150ms ease, color 150ms ease;
}

.diff-panel__toggle:hover {
  background-color: var(--surface-3);
  color: var(--text-primary);
}

.diff-panel__toggle--active {
  background-color: var(--surface-3);
  color: var(--text-primary);
}

.diff-panel__notice {
  border: 1px solid var(--border-subtle);
  border-radius: 3px;
  padding: var(--space-2) var(--space-3);
  font-size: 0.75rem;
  line-height: 1rem;
  color: var(--text-secondary);
  background-color: var(--surface-overlay);
}

.diff-panel__viewer {
  flex: 1 1 auto;
  min-height: 0;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.diff-panel__footer {
  font-size: 0.75rem;
  line-height: 1rem;
  color: var(--text-secondary);
}

.diff-panel__footer-text {
  display: inline-block;
  padding: var(--space-1) var(--space-2);
  border-radius: 3px;
  background-color: var(--surface-3);
}

.diff-view {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  padding: var(--panel-padding);
  box-sizing: border-box;
  overflow: auto;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.875rem;
  line-height: 1.5;
  color: var(--text-primary);
}

.diff-view--empty {
  justify-content: center;
  align-items: center;
}

.diff-view__empty-text {
  font-size: 0.875rem;
  line-height: 1.5;
  color: var(--text-secondary);
}

.diff-view__line {
  display: grid;
  gap: var(--space-3);
  padding: 0 var(--space-2);
  align-items: stretch;
  min-width: 0;
}

.diff-view__line--inline {
  grid-template-columns: minmax(4ch, auto) minmax(4ch, auto) minmax(2ch, auto) minmax(0, 1fr);
}

.diff-view__line--side-by-side {
  grid-template-columns: minmax(4ch, auto) minmax(0, 1fr) minmax(4ch, auto) minmax(0, 1fr);
}

.diff-line__number {
  text-align: right;
  color: var(--text-tertiary);
  font-variant-numeric: tabular-nums;
  padding-right: var(--space-2);
  user-select: none;
  min-width: 0;
}

.diff-line__marker {
  text-align: center;
  color: var(--text-tertiary);
  user-select: none;
}

.diff-line__content {
  display: block;
  white-space: pre;
  overflow: hidden;
  text-overflow: ellipsis;
  min-width: 0;
}

.diff-view__line.diff-line--removed .diff-line__number,
.diff-view__line.diff-line--removed .diff-line__marker,
.diff-view__line.diff-line--removed .diff-line__content {
  background-color: var(--accent-critical-soft);
  color: var(--text-primary);
}

.diff-view__line.diff-line--added .diff-line__number,
.diff-view__line.diff-line--added .diff-line__marker,
.diff-view__line.diff-line--added .diff-line__content {
  background-color: var(--accent-positive-soft);
  color: var(--text-primary);
}

.diff-line__number--removed,
.diff-line__content--removed {
  background-color: var(--accent-critical-soft);
  color: var(--text-primary);
}

.diff-line__number--added,
.diff-line__content--added {
  background-color: var(--accent-positive-soft);
  color: var(--text-primary);
}

.diff-line__number--blank,
.diff-line__content--blank {
  background-color: transparent;
  color: var(--text-tertiary);
}

.diff-view__collapse {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  margin: var(--space-1) var(--space-2);
  padding: var(--space-1) var(--space-2);
  border: 1px dashed var(--border-subtle);
  border-radius: 3px;
  background-color: var(--surface-3);
  font-size: 0.75rem;
  line-height: 1rem;
}

.diff-view__collapse-text {
  color: var(--text-secondary);
}

.diff-view__collapse-button {
  border: 1px solid var(--border-subtle);
  border-radius: 2px;
  background-color: transparent;
  color: var(--text-primary);
  padding: var(--input-padding-y) var(--input-padding-x);
  font-size: 0.75rem;
  line-height: 1rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  cursor: pointer;
  transition: background-color 150ms ease, border-color 150ms ease;
}

.diff-view__collapse-button:hover {
  background-color: var(--surface-3);
  border-color: var(--border-strong);
}

.diff-panel__content {
  display: flex;
  flex: 1;
  min-height: 0;
  min-width: 0;
  gap: var(--panel-gap);
}

.diff-panel__nav {
  flex: 0 0 18rem;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  padding: var(--space-3);
  border: 1px solid var(--border-subtle);
  border-radius: 3px;
  background-color: var(--surface-inset);
  max-height: 100%;
  overflow: hidden;
  min-width: 0;
}

.diff-nav__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.75rem;
  line-height: 1rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--text-tertiary);
}

.diff-nav__title {
  color: inherit;
}

.diff-nav__count {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  color: var(--text-secondary);
}

.diff-nav__list {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  margin-top: var(--space-2);
  overflow-y: auto;
  padding-right: var(--space-1);
}

.diff-nav__item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
  padding: var(--space-1) var(--space-2);
  border: none;
  border-radius: 3px;
  background-color: transparent;
  color: var(--text-secondary);
  font-size: 0.8125rem;
  line-height: 1.25rem;
  text-align: left;
  cursor: pointer;
  transition: background-color 150ms ease, color 150ms ease;
}

.diff-nav__item:focus-visible {
  outline: 1px solid var(--border-strong);
  outline-offset: 1px;
}

.diff-nav__item:hover {
  background-color: var(--surface-3);
  color: var(--text-primary);
}

.diff-nav__item[data-active='true'] {
  background-color: var(--surface-3);
  color: var(--text-primary);
}

.diff-nav__item[data-folder='true'] .diff-nav__label {
  font-weight: 600;
}

.diff-nav__item--root {
  margin-top: var(--space-1);
}

.diff-nav__item--depth-0 {
  padding-left: var(--space-2);
}

.diff-nav__item--depth-1 {
  padding-left: calc(var(--space-2) + 1 * var(--space-4));
}

.diff-nav__item--depth-2 {
  padding-left: calc(var(--space-2) + 2 * var(--space-4));
}

.diff-nav__item--depth-3 {
  padding-left: calc(var(--space-2) + 3 * var(--space-4));
}

.diff-nav__item--depth-4 {
  padding-left: calc(var(--space-2) + 4 * var(--space-4));
}

.diff-nav__item--depth-5 {
  padding-left: calc(var(--space-2) + 5 * var(--space-4));
}

.diff-nav__item--depth-6 {
  padding-left: calc(var(--space-2) + 6 * var(--space-4));
}

.diff-nav__item--depth-7 {
  padding-left: calc(var(--space-2) + 7 * var(--space-4));
}

.diff-nav__item--depth-8 {
  padding-left: calc(var(--space-2) + 8 * var(--space-4));
}

.diff-nav__label {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.diff-nav__metrics {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.75rem;
}

.diff-nav__delta {
  font-weight: 600;
}

.diff-nav__delta--added {
  color: var(--accent-positive-strong);
}

.diff-nav__delta--removed {
  color: var(--accent-critical-strong);
}

.diff-nav__empty {
  margin-top: var(--space-2);
  font-size: 0.75rem;
  line-height: 1rem;
  color: var(--text-tertiary);
}

.diff-view__file-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  margin-top: var(--space-3);
  margin-bottom: var(--space-3);
  background-color: #444;
  padding: 6px;
}

.diff-view__file-header:first-of-type {
  margin-top: 0;
}

.diff-view__file-id {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
}

.diff-view__file-name {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--text-primary);
}

.diff-view__badge {
  display: inline-flex;
  align-items: center;
  border-radius: 2px;
  padding: 0 var(--space-2);
  font-size: 0.6875rem;
  line-height: 1rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.diff-view__badge--positive {
  background-color: var(--accent-positive-soft);
  color: var(--accent-positive-strong);
}

.diff-view__badge--critical {
  background-color: var(--accent-critical-soft);
  color: var(--accent-critical-strong);
}

.diff-view__file-metrics {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.8125rem;
}

.diff-view__delta {
  font-weight: 600;
}

.diff-view__delta--added {
  color: var(--accent-positive-strong);
}

.diff-view__delta--removed {
  color: var(--accent-critical-strong);
}

.diff-view__empty-section {
  margin: var(--space-2) 0;
  padding: var(--space-2);
  border-radius: 3px;
  background-color: var(--surface-inset);
  color: var(--text-secondary);
  font-size: 0.8125rem;
}

/* Code viewer (used in FilePanel) */
.code-viewer {
  width: 100%;
  height: 100%;
  margin: 0;
  padding: var(--panel-padding);
  overflow: auto;
  background-color: var(--surface-inset);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.875rem;
  line-height: 1.5;
  color: var(--text-primary);
}

.code-viewer code {
  font-family: inherit;
  font-size: inherit;
  line-height: inherit;
}

/* Syntax highlighting */
.hl-keyword { color: #c792ea; }
.hl-literal { color: #f78c6c; }
.hl-comment { color: var(--text-tertiary); font-style: italic; }
.hl-string { color: #c3e88d; }
.hl-tag { color: #f07178; }
.hl-attr { color: #c792ea; }
.hl-selector { color: #ffcb6b; }
.hl-property { color: #82aaff; }
.hl-value { color: #c3e88d; }

/* TextContentViewer inside content blocks */
.content-block .text-content-viewer {
  border: none;
  background-color: transparent;
}

.content-block .text-content-viewer__display {
  background-color: transparent;
  padding: 0;
}

.content-block .text-content-viewer__editor {
  background-color: var(--surface-inset);
  padding: var(--inset-padding);
}

/* Console-style file tree */
.file-explorer-panel {
  gap: var(--panel-gap);
}

.file-explorer-panel__tree {
  flex: 1;
  min-height: 0;
  overflow: auto;
}

.file-explorer-panel__tree--root-target {
  box-shadow: inset 0 0 0 1px var(--border-strong);
  background-color: var(--surface-2);
}

.file-explorer-panel__filesystem-select {
  min-width: 12rem;
}

.file-tree-console {
  display: flex;
  flex-direction: column;
  gap: 0;
  list-style: none;
  padding: 0;
  margin: 0;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.9375rem;
  line-height: 1.6;
}

.file-tree-console li {
  display: block;
}

.file-tree-item {
  display: block;
  width: 100%;
  padding: 0.25rem 0.5rem;
  border: none;
  background: none;
  text-align: left;
  font-family: inherit;
  font-size: inherit;
  line-height: inherit;
  color: var(--text-secondary);
  cursor: pointer;
  transition: background-color 100ms ease, color 100ms ease;
  white-space: pre;
  overflow: hidden;
  text-overflow: ellipsis;
}

.file-tree-item:hover {
  background-color: var(--surface-2);
  color: var(--text-primary);
}

.file-tree-item--dir {
  color: var(--text-tertiary);
}

.file-tree-item--dir:hover {
  background-color: var(--surface-2);
  color: var(--text-secondary);
}

.file-tree-item--selected {
  background-color: var(--surface-3);
  color: var(--text-primary);
}

.file-tree-item--selected:hover {
  background-color: var(--surface-3);
}

.file-tree-item--drop-target,
.file-tree-item--drop-target.file-tree-item--selected {
  background-color: var(--accent-neutral-soft);
  color: var(--text-primary);
}

.file-explorer-panel__search {
  padding: 0 var(--panel-padding) var(--space-2);
}

.file-explorer-panel__search-controls {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.file-explorer-panel__search-input {
  flex: 1;
}

.file-explorer-panel__search-clear {
  border: none;
  background: none;
  color: var(--text-tertiary);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
  padding: var(--space-1) var(--space-2);
  border-radius: 3px;
  transition: color 150ms ease, background-color 150ms ease;
}

.file-explorer-panel__search-clear:hover {
  color: var(--text-primary);
  background-color: var(--surface-2);
}

.file-explorer-panel__results {
  flex: 1;
  min-height: 0;
  overflow: auto;
  padding: 0 var(--panel-padding) var(--panel-padding);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.file-explorer-panel__search-results-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.file-explorer-panel__search-result {
  width: 100%;
  text-align: left;
  border: 1px solid var(--border-subtle);
  border-radius: 4px;
  padding: var(--card-padding-sm-y) var(--card-padding-sm-x);
  background-color: var(--surface-inset);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  cursor: pointer;
  color: var(--text-primary);
  transition: border-color 150ms ease, background-color 150ms ease;
}

.file-explorer-panel__search-result:hover {
  border-color: var(--border-strong);
  background-color: var(--surface-2);
}

.file-explorer-panel__search-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
  font-size: 0.75rem;
  color: var(--text-tertiary);
}

.file-explorer-panel__search-path {
  color: var(--text-secondary);
  font-weight: 600;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.file-explorer-panel__search-line {
  flex-shrink: 0;
}

.file-explorer-panel__search-snippet {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.875rem;
  color: var(--text-secondary);
  white-space: pre-wrap;
  word-break: break-word;
}

.file-explorer-panel__search-snippet-text {
  color: inherit;
}

.file-explorer-panel__search-match {
  background-color: var(--accent-neutral-soft);
  color: var(--text-primary);
  border-radius: 3px;
  padding: 0 var(--space-1);
}

.file-explorer-panel__search-status {
  border: 1px dashed var(--border-subtle);
  border-radius: 4px;
  padding: var(--panel-padding);
  text-align: center;
  font-size: 0.875rem;
  color: var(--text-tertiary);
  background-color: var(--surface-inset);
}

.file-explorer-panel__search-status--error {
  color: var(--accent-critical-strong);
  border-color: var(--accent-critical-strong);
}

.image-content-viewer {
  display: flex;
  align-items: center;
  justify-content: center;
  flex: 1;
  min-height: 0;
  padding: var(--panel-padding);
  box-sizing: border-box;
  background-color: var(--surface-1);
}

.image-content-viewer__canvas {
  width: 100%;
  height: 100%;
  max-width: 100%;
  max-height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.image-content-viewer__image {
  display: block;
  max-width: 100%;
  max-height: 100%;
  width: auto;
  height: auto;
  background-color: var(--surface-1);
  background-image:
    linear-gradient(45deg, var(--surface-2) 25%, transparent 25%),
    linear-gradient(-45deg, var(--surface-2) 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, var(--surface-2) 75%),
    linear-gradient(-45deg, transparent 75%, var(--surface-2) 75%);
  background-size: var(--space-6) var(--space-6);
  background-position:
    0 0,
    0 var(--space-3),
    var(--space-3) var(--space-3),
    var(--space-3) 0;
}

.image-content-viewer__message {
  color: var(--text-secondary);
  text-align: center;
}

/* Versions list */
.versions-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  list-style: none;
  padding: 0;
  margin: 0;
  width: 100%;
}

.version-row {
  display: grid;
  grid-template-columns: 3rem 7rem 2em 1fr;
  grid-template-areas: "id date files badges";
  align-items: center;
  width: 100%;
  height: 2.5rem;
  padding: 0 var(--space-5);
  gap: var(--space-6);
  transition: background-color 150ms ease;
  cursor: pointer;
  box-sizing: border-box;
}

.version-row--even {
  background-color: var(--surface-1);
}

.version-row--odd {
  background-color: var(--surface-2);
}

.version-row:hover {
  background-color: var(--surface-3);
}

.version-row--selected {
  background-color: var(--surface-3);
  box-shadow: inset 3px 0 0 var(--accent-neutral-strong);
}

.version-row-content {
  display: contents;
}

.version-row-info {
  display: contents;
}

.version-row-tags {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  flex-wrap: wrap;
}

.panel-error {
  margin-left: var(--space-3);
  color: var(--accent-critical-strong);
  font-size: 0.875rem;
}

.agent-manager {
  display: flex;
  flex-direction: row-reverse;
  gap: var(--panel-padding);
  width: 100%;
  height: 100%;
}

.agent-manager__column {
  display: flex;
  flex-direction: column;
  min-height: 0;
}

.agent-manager__column--list {
  flex: 0 0 18rem;
  max-width: 20rem;
  overflow-y: auto;
}

.agent-manager__column--editor {
  flex: 1 1 auto;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.agent-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  list-style: none;
  margin: 0;
  padding: 0;
  padding-right: var(--panel-padding);
}

.agent-list__row {
  width: 100%;
  border: 1px solid transparent;
  border-radius: 2px;
  background-color: var(--surface-2-5);
  color: inherit;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--space-2);
  padding: var(--space-2);
  cursor: pointer;
  transition: background-color 150ms ease, border-color 150ms ease;
}

.agent-list__row:hover {
  background-color: var(--button-bg-hover);
}

.agent-list__row--selected {
  border-color: var(--accent-neutral-soft);
  background-color: var(--surface-3);
}

.agent-list__row--dropping {
  border-color: var(--accent-neutral-strong);
  background-color: var(--surface-3);
}

.agent-list__row:focus-visible {
  outline: 2px solid var(--accent-neutral-strong);
  outline-offset: 2px;
}

.agent-list__row-header {
  display: flex;
  width: 100%;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-3);
}

.agent-list__name-section {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.agent-list__name-row {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.agent-list__led {
  flex-shrink: 0;
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background-color: #22c55e;
  box-shadow: 0 0 0.25rem rgba(34, 197, 94, 0.6);
}

.agent-list__name {
  font-weight: 600;
  font-size: 0.9375rem;
  color: var(--text-primary);
  white-space: nowrap;
}

.agent-list__slug {
  font-size: 0.75rem;
  color: var(--text-tertiary);
  text-transform: lowercase;
  text-align: left;
}

.agent-list__model-label {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.agent-list__row-footer {
  display: flex;
  width: 100%;
  justify-content: space-between;
  align-items: center;
}

.agent-list__row-footer--compact {
  justify-content: flex-end;
  width: auto;
  gap: var(--space-2);
}

.agent-list__provider {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  flex: 0 1 auto;
}

.agent-list__model {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  flex: 0 1 auto;
  white-space: nowrap;
  text-align: right;
}

.agent-list__tags {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
}

.agent-editor {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
  padding: var(--panel-padding);
}

.agent-editor__wrapper {
  flex: 1 1 auto;
  overflow-y: auto;
  padding-right: var(--space-2);
  padding-bottom: var(--panel-padding);
}

.agent-editor__section {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.agent-editor__section--flex {
  flex: 1 1 auto;
  min-height: 0;
}

.agent-editor__row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
}

.agent-editor__slug {
  padding: var(--space-3);
  border: 1px solid var(--border-subtle);
  border-radius: 4px;
  background-color: var(--surface-1);
  color: var(--text-secondary);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.875rem;
  line-height: 1.5rem;
}

.agent-editor__label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.agent-editor__input {
  width: 100%;
  padding: var(--space-3);
  border: 1px solid var(--border-subtle);
  border-radius: 4px;
  background-color: var(--surface-1);
  color: var(--text-primary);
  font: inherit;
}

.agent-editor__input:focus {
  outline: none;
  border-color: var(--accent-neutral-strong);
  box-shadow: 0 0 0 1px var(--accent-neutral-soft);
}

.agent-editor__hint {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 0.8125rem;
  color: var(--text-tertiary);
}

.agent-editor__hint-label {
  font-weight: 600;
  color: var(--text-secondary);
}

.agent-editor__hint-value {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  letter-spacing: 0.02em;
}

.agent-editor__prompt-search {
  position: relative;
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.agent-editor__search-clear {
  position: absolute;
  right: var(--space-2);
}

.agent-editor__clear {
  border: 1px solid var(--border-subtle);
  border-radius: 4px;
  background-color: var(--surface-1);
  color: var(--text-secondary);
  padding: 0 var(--space-3);
  height: 2rem;
  cursor: pointer;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.agent-editor__clear:hover {
  background-color: var(--surface-2);
}

.agent-editor__prompt-summary {
  border: 1px solid var(--border-subtle);
  border-radius: 4px;
  background-color: var(--surface-2);
  padding: var(--space-3);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.agent-editor__prompt-summary-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
}

.agent-editor__prompt-hash,
.agent-editor__prompt-option-hash {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.75rem;
  color: var(--text-tertiary);
  word-break: break-all;
}

.agent-editor__prompt-hash[role="button"] {
  cursor: pointer;
  padding: var(--space-1) var(--space-2);
  margin: calc(-1 * var(--space-1)) calc(-1 * var(--space-2));
  border-radius: var(--radius-sm);
  transition: background-color 0.2s ease, color 0.5s ease-out;
}

.agent-editor__prompt-hash[role="button"]:hover {
  background-color: var(--bg-tertiary);
}

.agent-editor__prompt-hash[role="button"].copied {
  color: #a8e890;
  transition: none;
}

.agent-editor__prompt-tags {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
}

.agent-editor__prompt-preview,
.agent-editor__prompt-option-preview {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.5;
  color: var(--text-secondary);
}

.agent-editor__prompt-preview {
  min-height: calc(1.5em * 3);
  cursor: pointer;
  padding: var(--space-1);
  border-radius: 3px;
  transition: background-color 150ms ease;
  white-space: pre-wrap;
  word-break: break-word;
}

.agent-editor__prompt-preview:hover {
  background-color: var(--surface-3);
}

.agent-editor__prompt-preview:not(.agent-editor__prompt-preview--expanded) {
  display: -webkit-box;
  -webkit-line-clamp: 4;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.agent-editor__prompt-preview--expanded {
  max-height: none;
}

.agent-editor__prompt-placeholder {
  margin: 0;
  font-size: 0.875rem;
  color: var(--text-tertiary);
}

.agent-editor__prompt-results {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  flex: 1 1 auto;
  overflow-y: auto;
  padding: var(--space-2) 0;
  min-height: 0;
}

.agent-editor__prompt-loading,
.agent-editor__prompt-empty {
  font-size: 0.875rem;
  color: var(--text-tertiary);
}

.agent-editor__prompt-option {
  border: 1px solid transparent;
  border-radius: 4px;
  background-color: var(--surface-1);
  padding: var(--space-3);
  text-align: left;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  cursor: pointer;
  transition: background-color 150ms ease, border-color 150ms ease;
}

.agent-editor__prompt-option:hover {
  background-color: var(--surface-2);
}

.agent-editor__prompt-option--selected {
  border-color: var(--accent-neutral-soft);
  background-color: var(--surface-3);
}

.agent-editor__prompt-option-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
}

.agent-editor__prompt-option-badges {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex-wrap: wrap;
}

.agent-editor__actions {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.agent-editor__button-group,
.agent-editor__secondary {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.agent-editor__footer {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  padding-top: var(--panel-padding);
  flex: 0 0 auto;
  justify-content: flex-end;
  align-items: flex-end;
}

.agent-editor__footer .agent-editor__button-group {
  width: 100%;
  justify-content: flex-end;
}

.agent-editor__notice {
  margin: 0;
  font-size: 0.8125rem;
  color: var(--text-secondary);
  align-self: flex-end;
}

.apps-manager {
  display: flex;
  flex-direction: row-reverse;
  gap: var(--panel-padding);
  width: 100%;
  height: 100%;
}

.apps-manager__column {
  display: flex;
  flex-direction: column;
  min-height: 0;
}

.apps-manager__column--list {
  flex: 0 0 calc(var(--space-12) * 6);
  max-width: calc(var(--space-12) * 7);
  overflow-y: auto;
}

.apps-manager__column--editor {
  flex: 1 1 auto;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.apps-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  list-style: none;
  margin: 0;
  padding: 0;
  padding-right: var(--panel-padding);
}

.apps-list__empty {
  flex: 1 1 auto;
  min-height: 0;
  padding-right: var(--panel-padding);
  display: flex;
}

.apps-list__empty .empty-state {
  flex: 1 1 auto;
}

.apps-list__row {
  width: 100%;
  border: 1px solid transparent;
  border-radius: 2px;
  background-color: var(--surface-2-5);
  color: inherit;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--space-2);
  padding: var(--space-2);
  cursor: pointer;
  transition: background-color 150ms ease, border-color 150ms ease;
}

.apps-list__row:hover {
  background-color: var(--button-bg-hover);
}

.apps-list__row--selected {
  border-color: var(--accent-neutral-soft);
  background-color: var(--surface-3);
}

.apps-list__row:focus-visible {
  outline: 2px solid var(--accent-neutral-strong);
  outline-offset: 2px;
}

.apps-list__row-header {
  display: flex;
  width: 100%;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-3);
}

.apps-list__name-section {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.apps-list__name {
  font-weight: 600;
  font-size: 0.9375rem;
  color: var(--text-primary);
  white-space: nowrap;
}

.apps-list__slug {
  font-size: 0.75rem;
  color: var(--text-tertiary);
  text-transform: lowercase;
  text-align: left;
}

.apps-list__badges {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
}

.apps-list__row-footer {
  display: flex;
  width: 100%;
  justify-content: space-between;
  align-items: center;
}

.apps-list__domain {
  font-size: 0.8125rem;
  color: var(--text-secondary);
}

.apps-list__domain--empty {
  color: var(--text-tertiary);
}

.app-editor {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
  padding: var(--panel-padding);
}

.app-editor__wrapper {
  flex: 1 1 auto;
  overflow-y: auto;
  padding-right: var(--space-2);
  padding-bottom: var(--panel-padding);
}

.app-editor__section {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.app-editor__row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
}

.app-editor__label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.app-editor__input {
  width: 100%;
  padding: var(--space-3);
  border: 1px solid var(--border-subtle);
  border-radius: 4px;
  background-color: var(--surface-1);
  color: var(--text-primary);
  font: inherit;
}

.app-editor__input:focus {
  outline: none;
  border-color: var(--accent-neutral-strong);
  box-shadow: 0 0 0 1px var(--accent-neutral-soft);
}

.app-editor__hint {
  margin: 0;
  font-size: 0.8125rem;
  color: var(--text-tertiary);
}

.app-editor__toggle {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.app-editor__toggle-label {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.app-editor__placeholder {
  padding: var(--space-3);
  border: 1px solid var(--border-subtle);
  border-radius: 4px;
  background-color: var(--surface-1);
  color: var(--text-secondary);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.875rem;
  line-height: 1.5rem;
}

.app-editor__copy {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.75rem;
  color: var(--text-tertiary);
  word-break: break-all;
}

.app-editor__copy[role="button"] {
  cursor: pointer;
  padding: var(--space-1) var(--space-2);
  margin: calc(-1 * var(--space-1)) calc(-1 * var(--space-2));
  border-radius: var(--radius-sm);
  transition: background-color 0.2s ease, color 0.5s ease-out;
}

.app-editor__copy[role="button"]:hover {
  background-color: var(--bg-tertiary);
}

.app-editor__copy[role="button"].copied {
  color: var(--accent-positive-strong);
  transition: none;
}

.app-editor__button-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.app-editor__footer {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  padding-top: var(--panel-padding);
  flex: 0 0 auto;
  justify-content: flex-end;
  align-items: flex-end;
}

.app-editor__footer .app-editor__button-group {
  width: 100%;
  justify-content: flex-end;
}

.version-row-id {
  grid-area: id;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-tertiary);
}

.version-row-date {
  grid-area: date;
  font-size: 0.8125rem;
  color: var(--text-secondary);
  cursor: help;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

.version-row-files {
  grid-area: files;
  font-size: 0.8125rem;
  color: var(--text-tertiary);
  white-space: nowrap;
}

.version-row-badges {
  grid-area: badges;
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-wrap: nowrap;
  overflow: hidden;
}

/* Tag editor popup - minimal like context menu */
.tag-editor {
  z-index: 50;
  max-width: 18rem;
  border-radius: 3px;
  border: 1px solid var(--border-strong);
  background-color: var(--surface-overlay);
  box-shadow: var(--shadow-elevated);
  backdrop-filter: blur(12px);
}

.tag-editor-content {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  padding: var(--space-2);
  max-height: 20rem;
  overflow-y: auto;
}

.tag-editor-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1);
  padding-bottom: var(--space-2);
  border-bottom: 1px solid var(--border-subtle);
}

/* Remove buttons in tag editor - just badges */

.tag-editor-input {
  height: 2rem;
  border-radius: 3px;
  border: 1px solid var(--border-subtle);
  background-color: var(--surface-inset);
  color: var(--text-primary);
  font-size: 0.8125rem;
  padding: 0 var(--space-2);
}

.tag-editor-input:focus-visible {
  outline: 2px solid var(--tag-accent-strong);
  outline-offset: -1px;
}

.tag-editor-error {
  font-size: 0.75rem;
  color: var(--accent-critical-strong);
  padding: 0 var(--space-1);
}

.tag-editor-add {
  border-radius: 3px;
  border: 1px solid var(--border-subtle);
  background-color: var(--button-bg);
  color: var(--text-primary);
  font-size: 0.8125rem;
  font-weight: 500;
  padding: 0.375rem var(--space-2);
  cursor: pointer;
  transition: background-color 150ms ease, border-color 150ms ease, opacity 150ms ease;
  text-align: left;
}

.tag-editor-add:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.tag-editor-add:not(:disabled):hover {
  background-color: var(--button-bg-hover);
  border-color: var(--border-strong);
}

.tag-editor-suggestions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1);
  list-style: none;
  padding: 0;
  margin: 0;
}

.tag-editor-suggestions li {
  display: inline;
}

.tag-editor-suggestions button {
  width: auto;
  filter: grayscale(100%);
}

.tag-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  border-radius: 2px;
  padding: 0.125rem var(--tag-padding-x);
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  background-color: var(--tag-accent-soft);
  color: var(--tag-accent-strong);
  border: 1px solid transparent;
  cursor: default;
}

.tag-badge[type="button"] {
  background-color: var(--tag-accent-soft);
  color: var(--tag-accent-strong);
  border: 1px solid transparent;
  cursor: pointer;
  transition: opacity 150ms ease;
}

.tag-badge[type="button"]:hover:not(:disabled) {
  opacity: 0.9;
}

.tag-badge[type="button"]:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.tag-badge--assigned {
  background-color: var(--tag-accent-soft);
}

.tag-badge--interactive {
  cursor: pointer;
  transition: background-color 150ms ease, border-color 150ms ease, color 150ms ease, opacity 150ms ease;
}

.tag-badge--interactive:hover {
  background-color: var(--tag-accent-soft-hover);
  border-color: var(--tag-accent-strong);
}

.tag-badge--disabled {
  opacity: 0.55;
  cursor: not-allowed;
  pointer-events: none;
}

.tag-badge--static {
  pointer-events: none;
}

.tag-badge--empty {
  background-color: var(--button-bg) !important;
  border-color: var(--border-subtle) !important;
  color: var(--text-primary) !important;
  cursor: pointer;
  transition: background-color 150ms ease, border-color 150ms ease;
}

.tag-badge--empty:hover:not(:disabled) {
  background-color: var(--button-bg-hover) !important;
  border-color: var(--border-strong) !important;
}

.tag-badge__remove {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.5rem;
  height: 1.5rem;
  border-radius: 999px;
  border: none;
  background-color: transparent;
  color: inherit;
  cursor: pointer;
  transition: background-color 150ms ease, opacity 150ms ease;
}

.tag-badge__remove:hover {
  background-color: var(--border-subtle);
  opacity: 0.9;
}

.tag-badge__remove:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.tag-badge__remove:focus-visible {
  outline: 2px solid var(--tag-accent-strong);
  outline-offset: 2px;
}

.tag-badge__meta {
  font-size: 0.6875rem;
  font-weight: 500;
  opacity: 0.72;
}

.tag-editor-loading {
  font-size: 0.875rem;
  color: var(--text-tertiary);
}

.tag-editor-footer {
  display: flex;
  justify-content: flex-end;
  gap: var(--space-3);
}

.tag-editor-dismiss {
  border-radius: 8px;
  border: 1px solid var(--border-subtle);
  background-color: transparent;
  color: var(--text-secondary);
  font-size: 0.8125rem;
  font-weight: 600;
  padding: 0.5rem var(--space-4);
  cursor: pointer;
  transition: background-color 150ms ease, border-color 150ms ease;
}

.tag-editor-dismiss:hover {
  background-color: var(--surface-2);
  border-color: var(--border-strong);
}

/* Sessions list */
.sessions-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  list-style: none;
  padding: 0;
  margin: 0;
  width: 100%;
}

.session-row {
  display: block;
  width: 100%;
  border: none;
  text-align: left;
  cursor: pointer;
  transition: background-color 150ms ease;
}

.session-row--even {
  background-color: var(--surface-1);
}

.session-row--odd {
  background-color: var(--surface-2);
}

.session-row:hover {
  background-color: var(--surface-3);
}

.session-row--selected {
  background-color: var(--surface-3);
  box-shadow: inset 3px 0 0 var(--accent-neutral-strong);
}

.session-row-info {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  padding: var(--space-4) var(--space-5);
  width: 100%;
}

.session-row-id {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-tertiary);
  min-width: 3rem;
}

.session-row-date {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  min-width: 10rem;
}

.session-row-title {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Messages list */
.messages-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  list-style: none;
  padding: 0;
  margin: 0;
  width: 100%;
}

.message-row {
  display: block;
  width: 100%;
  border: none;
  text-align: left;
  cursor: pointer;
  transition: background-color 150ms ease;
}

.message-row--even {
  background-color: var(--surface-1);
}

.message-row--odd {
  background-color: var(--surface-2);
}

.message-row:hover {
  background-color: var(--surface-3);
}

.message-row--selected {
  background-color: var(--surface-3);
  box-shadow: inset 3px 0 0 var(--accent-neutral-strong);
}

.message-row-header {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-3) var(--space-5);
  padding-bottom: var(--space-2);
}

.message-row-id {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-tertiary);
  min-width: 3rem;
}

.message-row-date {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  min-width: 7rem;
}

.message-row-role {
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 0.125rem 0.375rem;
  border-radius: 2px;
}

.message-row-role--assistant {
  background-color: var(--accent-neutral-soft);
  color: var(--accent-neutral-strong);
}

.message-row-role--system {
  background-color: var(--accent-positive-soft);
  color: var(--accent-positive-strong);
}

.message-row-role--user {
  background-color: var(--accent-neutral-soft);
  color: var(--accent-neutral-strong);
}

.message-row-tools {
  display: flex;
  flex-wrap: wrap;
  gap: var(--item-gap-xs);
  margin-left: auto;
}

.message-row-tools .badge {
  text-transform: none;
}

.message-row-preview {
  margin: 0;
  padding: 0 var(--space-5);
  padding-bottom: var(--space-3);
  font-size: 0.8125rem;
  line-height: 1.4;
  color: var(--text-tertiary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.message-row-preview--text {
  font-weight: 600;
  color: var(--text-secondary);
}

/* Live panel specific */
.live-panel-content {
  display: flex;
  flex: 1;
  min-height: 0;
  width: 100%;
  overflow: auto;
  padding: var(--panel-padding);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.875rem;
  line-height: 1.5;
  background-color: var(--surface-inset);
}

.voice-prompt-panel-content {
  display: flex;
  flex: 1;
  min-height: 0;
  width: 100%;
  overflow: auto;
  padding: var(--panel-padding);
  background-color: var(--surface-inset);
  align-items: stretch;
  justify-content: stretch;
  outline: none;
  cursor: pointer;
  transition: box-shadow 150ms ease;
}

.voice-prompt-canvas {
  display: block;
  width: 100%;
  height: 100%;
  flex: 1;
}

.voice-prompt-panel-focused {
  box-shadow: 0 0 0 2px var(--accent-positive-strong);
}

.live-panel-text {
  margin: 0;
  white-space: pre-wrap;
  word-wrap: break-word;
  color: var(--text-primary);
  width: 100%;
}

.live-panel-empty {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  color: var(--text-tertiary);
  font-style: italic;
}

.live-panel-event-wrapper {
  display: block;
  margin-bottom: var(--space-1);
}

.live-panel-event-name {
  color: var(--accent-positive-strong);
  cursor: pointer;
  font-size: 0.875rem;
  line-height: 1.5;
  font-weight: 500;
  user-select: none;
  transition: color 150ms ease;
}

.live-panel-event-name:hover {
  color: var(--text-primary);
}

.live-panel-event-payload {
  margin-top: var(--space-1);
  padding-left: var(--space-4);
  color: var(--text-secondary);
  white-space: pre-wrap;
  word-wrap: break-word;
  font-size: 0.8125rem;
  line-height: 1.4;
}

.live-panel-streaming-text {
  color: var(--text-primary);
  font-size: 0.875rem;
  line-height: 1.5;
  cursor: pointer;
  transition: background-color 150ms ease;
  padding: var(--space-1) var(--space-2);
  border-radius: 2px;
  display: block;
  white-space: pre-wrap;
  word-break: break-word;
}

.live-panel-streaming-text:hover {
  background-color: var(--surface-2);
}

.live-panel-streaming-text--collapsed {
  max-height: calc(1.5em * 5);
  overflow: hidden;
  color: var(--text-secondary);
}

/* Prompt composer panel */
.prompt-composer-panel {
  display: grid;
  grid-template-columns: minmax(0, 320px) minmax(0, 1fr);
  gap: var(--panel-gap);
  height: 100%;
}

.prompt-library {
  display: flex;
  flex-direction: column;
  background-color: var(--surface-2);
  border: 1px solid var(--border-subtle);
  border-radius: 6px;
  padding: var(--panel-padding);
  overflow: hidden;
}

.prompt-library__header {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  margin-bottom: var(--panel-gap);
}

.prompt-library__search {
  width: 100%;
  border: 1px solid var(--border-subtle);
  border-radius: 3px;
  padding: var(--input-padding-y) var(--input-padding-x);
  font-size: 0.875rem;
  line-height: 1.25rem;
  background-color: var(--surface-inset);
  color: var(--text-primary);
  transition: border-color 150ms ease, box-shadow 150ms ease;
}

.prompt-library__search:focus {
  outline: none;
  border-color: var(--border-strong);
  box-shadow: 0 0 0 1px var(--border-strong);
}

.prompt-library__summary {
  display: flex;
  gap: var(--space-4);
  font-size: 0.75rem;
  color: var(--text-tertiary);
}

.prompt-library__empty {
  flex: 1;
  display: grid;
  place-items: center;
  font-size: 0.875rem;
  color: var(--text-tertiary);
  background-color: var(--surface-inset);
  border: 1px dashed var(--border-subtle);
  border-radius: 4px;
  padding: var(--panel-padding);
}

.prompt-library__list {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin: 0;
  padding: 0;
  list-style: none;
  overflow-y: auto;
}

.prompt-library__list {
  padding: var(--space-1);
  border: 1px dashed var(--border-subtle);
  border-radius: 4px;
  background-color: var(--surface-inset);
}

.prompt-library__chip {
  width: 100%;
  text-align: left;
}

.prompt-library__chip:focus-visible {
  outline: none;
  box-shadow: 0 0 0 2px var(--border-strong);
}

.prompt-library__title {
  flex: 1;
  font-weight: 600;
  font-size: 0.875rem;
  line-height: 1.4;
  color: var(--text-primary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.prompt-library__meta {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.prompt-library__meta-text {
  font-size: 0.75rem;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  white-space: nowrap;
}

.prompt-library__tag {
  text-transform: uppercase;
}

.prompt-composer {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--border-subtle);
  border-radius: 6px;
  background-color: var(--surface-2);
  padding: var(--panel-padding);
  gap: var(--panel-gap);
  flex: 1;
  min-height: 0;
  overflow: hidden;
}

.prompt-composer__header {
  display: flex;
  flex-direction: column;
  gap: var(--panel-gap);
  border-bottom: 1px solid var(--border-subtle);
  padding-bottom: var(--panel-gap);
}

.prompt-composer__settings {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-4);
}

.prompt-composer__setting {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.prompt-composer__setting-label {
  font-size: 0.75rem;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.prompt-composer__type-select {
  border: 1px solid var(--border-subtle);
  border-radius: 3px;
  padding: var(--input-padding-y) var(--input-padding-x);
  background-color: var(--surface-3);
  color: var(--text-primary);
  font-size: 0.875rem;
  line-height: 1.25rem;
  transition: border-color 150ms ease, box-shadow 150ms ease;
}

.prompt-composer__type-select:focus {
  outline: none;
  border-color: var(--border-strong);
  box-shadow: 0 0 0 1px var(--border-strong);
}

.prompt-composer__hash {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.prompt-composer__hash[role="button"] {
  cursor: pointer;
  padding: var(--space-1) var(--space-2);
  margin: calc(-1 * var(--space-1)) calc(-1 * var(--space-2));
  border-radius: var(--radius-sm);
  transition: background-color 0.2s ease, color 0.5s ease-out;
}

.prompt-composer__hash[role="button"]:hover {
  background-color: var(--bg-tertiary);
}

.prompt-composer__hash[role="button"].copied {
  color: #a8e890;
  transition: none;
}

.prompt-composer__controls {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  justify-content: flex-end;
}

.prompt-composer__body {
  display: grid;
  grid-template-columns: minmax(0, 320px) minmax(0, 1fr);
  grid-template-rows: minmax(0, 1fr);
  gap: var(--panel-gap);
  flex: 1;
  min-height: 0;
}

.prompt-composer__list {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  padding: var(--space-1);
  border: 1px dashed var(--border-subtle);
  border-radius: 4px;
  background-color: var(--surface-inset);
  min-height: calc(var(--space-10) * 4);
  max-height: 100%;
  overflow-y: auto;
}

.prompt-composer__body--preview-only {
  grid-template-columns: minmax(0, 1fr);
}

.prompt-composer__preview--full {
  grid-column: 1 / -1;
}

.prompt-composer__list.prompt-composer__list--hidden {
  display: none;
}

.prompt-composer__empty {
  text-align: center;
  font-size: 0.875rem;
  color: var(--text-tertiary);
  padding: var(--panel-padding);
}

.prompt-composer__chip {
  position: relative;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-3);
  padding: var(--card-padding-y) var(--card-padding-x);
  border: 1px solid var(--border-subtle);
  border-radius: 4px;
  background-color: var(--surface-3);
  cursor: grab;
  user-select: none;
  transition: border-color 150ms ease, background-color 150ms ease;
}

.prompt-composer__chip:active {
  cursor: grabbing;
}

.prompt-composer__chip--hovered {
  border-color: var(--accent-neutral-strong);
  background-color: var(--surface-2);
}

.prompt-composer__chip--selected {
  background-color: var(--accent-neutral-soft);
  color: var(--text-primary);
}

.prompt-composer__chip--hovered.prompt-composer__chip--selected {
  border-color: var(--accent-neutral-strong);
}

.prompt-composer__chip::before,
.prompt-composer__chip::after {
  content: '';
  position: absolute;
  left: var(--space-1);
  right: var(--space-1);
  height: 6px;
  border-radius: 9999px;
  background-color: transparent;
  pointer-events: none;
  transition: background-color 120ms ease, box-shadow 120ms ease;
}

.prompt-composer__chip::before {
  top: calc(var(--space-1) * -1);
}

.prompt-composer__chip::after {
  bottom: calc(var(--space-1) * -1);
}

.prompt-composer__chip--drop-before::before,
.prompt-composer__chip--drop-after::after {
  background-color: var(--accent-neutral-soft);
  box-shadow: 0 0 0 1px var(--accent-neutral-strong);
}

.prompt-composer__chip-title {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-weight: 600;
  color: var(--text-primary);
}

.prompt-composer__chip-meta {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.prompt-composer__chip-meta-text {
  font-size: 0.75rem;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.prompt-composer__chip--selected .prompt-composer__chip-meta-text {
  color: var(--text-secondary);
}

.prompt-composer__chip-tag {
  text-transform: uppercase;
}

.prompt-composer__preview {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  min-height: 0;
}

.prompt-composer__preview-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8125rem;
  color: var(--text-tertiary);
}

.prompt-composer__preview-title {
  font-weight: 600;
  color: var(--text-primary);
}

.prompt-composer__preview-content {
  flex: 1;
  min-height: calc(var(--space-10) * 6);
  border: 1px solid var(--border-subtle);
  border-radius: 4px;
  background-color: var(--surface-inset);
  padding: var(--space-2);
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.prompt-composer__preview-empty {
  display: grid;
  place-items: center;
  min-height: calc(var(--space-10) * 6);
  padding: var(--panel-padding);
  text-align: center;
  font-size: 0.875rem;
  color: var(--text-tertiary);
}

.prompt-composer__preview-segment {
  border: 1px solid transparent;
  border-radius: 4px;
  background-color: transparent;
  color: var(--text-secondary);
  padding: var(--space-3);
  transition: background-color 150ms ease, box-shadow 150ms ease, border-color 150ms ease;
}

.prompt-composer__preview-segment--hovered {
  border-color: var(--accent-neutral-soft);
  background-color: var(--surface-3);
}

.prompt-composer__preview-segment--selected {
  background-color: var(--accent-neutral-soft);
  color: var(--text-primary);
}

.prompt-composer__preview-segment--hovered.prompt-composer__preview-segment--selected {
  border-color: var(--accent-neutral-strong);
}

.prompt-composer__preview-text {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.5;
  white-space: pre-wrap;
  word-break: break-word;
  font-family: inherit;
}

.prompt-composer__error {
  border-radius: 3px;
  padding: var(--space-2) var(--space-3);
  background-color: var(--accent-critical-soft);
  color: var(--accent-critical-strong);
  font-size: 0.8125rem;
}


.live-panel-event-badges {
  display: flex;
  flex-wrap: wrap;
  padding: var(--space-1);
}

/* Tool Selector */
.tool-selector {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-6);
  padding: var(--space-4);
  background-color: var(--surface-inset);
  border-radius: 4px;
  border: 1px solid var(--border-subtle);
}

.tool-selector__column {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  min-width: 0;
}

.tool-selector__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
}

.tool-selector__heading {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-tertiary);
  margin: 0;
}

.tool-selector__action {
  border-radius: 2px;
  border: 1px solid var(--border-subtle);
  background-color: var(--button-bg);
  color: var(--text-secondary);
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 0.25rem var(--space-3);
  cursor: pointer;
  transition: background-color 150ms ease, border-color 150ms ease, opacity 150ms ease;
}

.tool-selector__action:hover:not(:disabled) {
  background-color: var(--button-bg-hover);
  border-color: var(--border-strong);
}

.tool-selector__action:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.tool-selector__tools {
  display: flex;
  flex-wrap: wrap;
  gap: var(--badge-gap);
  min-height: 2rem;
}

.tool-selector__tool {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 2px;
  border: none;
  padding: 0.125rem var(--tag-padding-x);
  max-height: 16px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: none;
  white-space: nowrap;
  cursor: pointer;
  transition: background-color 150ms ease, color 150ms ease;
}

.tool-selector__tool--available {
  background-color: var(--accent-neutral-soft);
  color: var(--accent-neutral-strong);
}

.tool-selector__tool--available:hover {
  background-color: rgba(148, 163, 184, 0.26);
}

.tool-selector__tool--selected {
  background-color: var(--accent-positive-soft);
  color: var(--accent-positive-strong);
}

.tool-selector__tool--selected:hover {
  background-color: var(--accent-positive-soft-hover);
}

.tool-selector__empty {
  font-size: 0.8125rem;
  color: var(--text-tertiary);
  margin: 0;
  font-style: italic;
}

/* Tasks panel */
.tasks-panel__quick-input {
  display: flex;
  flex-direction: column;
  gap: var(--item-gap);
  padding: var(--panel-padding) var(--panel-padding) 0;
}

.tasks-panel__quick-textarea {
  width: 100%;
  border-radius: 3px;
  border: 1px solid var(--border-subtle);
  background-color: var(--surface-inset);
  padding: var(--inset-padding);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.875rem;
  line-height: 1.5;
  color: var(--text-primary);
  resize: none;
}

.tasks-panel__quick-textarea:focus {
  outline: none;
  border-color: var(--border-strong);
  box-shadow: 0 0 0 1px var(--border-strong);
}

.tasks-panel__quick-textarea::placeholder {
  color: var(--text-tertiary);
  opacity: 0.7;
}

.tasks-panel__quick-textarea:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.tasks-panel__quick-actions {
  display: flex;
  justify-content: flex-end;
}

.tasks-panel__content {
  display: flex;
  flex-direction: column;
  gap: var(--panel-gap);
  min-height: 0;
}

.tasks-panel__editor {
  display: flex;
  flex-direction: column;
  flex: 1;
  gap: var(--space-3);
  min-height: 0;
}

.tasks-panel__editor .text-content-viewer {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 0;
}

.tasks-panel__editor .text-content-viewer__content {
  flex: 1;
  min-height: 0;
}

.tasks-panel__editor-bar {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--space-4);
}

.tasks-panel__editor-title {
  margin: 0;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
}

.tasks-panel__editor-hint {
  margin: var(--space-1) 0 0;
  color: var(--text-tertiary);
  font-size: 0.875rem;
}

.tasks-panel__validation {
  margin: 0;
  padding: var(--space-2) var(--space-3);
  border-radius: 4px;
  background-color: var(--accent-critical-soft);
  color: var(--accent-critical-strong);
  font-size: 0.875rem;
}

.tasks-panel__toolbar {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--panel-padding) var(--panel-padding) 0;
}

.tasks-panel__search {
  flex: 1;
  border: 1px solid var(--border-subtle);
  border-radius: 4px;
  padding: var(--space-2) var(--space-3);
  background-color: var(--surface-inset);
  color: var(--text-primary);
  font-size: 0.875rem;
}

.tasks-panel__search:focus {
  outline: none;
  border-color: var(--accent-neutral-soft);
  box-shadow: 0 0 0 1px var(--accent-neutral-soft);
}

.tasks-panel__count {
  font-size: 0.875rem;
  color: var(--text-tertiary);
}

.tasks-panel__list {
  overflow-y: auto;
  flex: 1;
  min-height: 0;
}

.tasks-panel__destroy-target {
  margin: var(--panel-padding);
  padding: var(--card-padding-y) var(--card-padding-x);
  border: 1px solid var(--border-subtle);
  border-radius: 4px;
  background-color: var(--surface-3);
  text-align: center;
  color: var(--text-tertiary);
  font-size: 0.875rem;
  transition: background-color 150ms ease, border-color 150ms ease, color 150ms ease;
}

.tasks-panel__destroy-target--active {
  background-color: var(--accent-critical-strong);
  border-color: var(--accent-critical-strong);
  color: var(--text-on-critical);
}

.tasks-list {
  list-style: none;
  margin: 0;
  padding: var(--panel-padding);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  position: relative;
}

.tasks-list__item {
  position: relative;
}

.tasks-list__item--drop-before {
  box-shadow: inset 0 3px 0 0 var(--accent-neutral-strong);
}

.tasks-list__item--drop-after {
  box-shadow: inset 0 -3px 0 0 var(--accent-neutral-strong);
}

.tasks-list--drop-after::after {
  content: '';
  display: block;
  height: 3px;
  background-color: var(--accent-neutral-strong);
  border-radius: 999px;
  margin-top: var(--space-2);
}

.task-card {
  position: relative;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-3);
  padding: var(--card-padding-y) var(--card-padding-x);
  border: 1px solid var(--border-subtle);
  border-radius: 4px;
  background-color: var(--surface-3);
  cursor: grab;
  user-select: none;
  transition: border-color 150ms ease, background-color 150ms ease;
}

.task-card:active {
  cursor: grabbing;
}

.task-card__title {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-weight: 600;
  color: var(--text-primary);
}

.task-card__meta {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.task-card__meta-text {
  font-size: 0.75rem;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* Assignments panel */
.assignments-panel__content {
  display: grid;
  grid-template-columns: minmax(220px, 280px) 1fr;
  gap: var(--panel-gap);
  height: 100%;
}

.assignments-panel__column {
  display: flex;
  flex-direction: column;
  gap: var(--panel-gap);
  min-height: 0;
  overflow-y: auto;
}

.assignments-panel__column--detail {
  flex: 1;
}

.assignments-panel__placeholder {
  border: 1px dashed var(--border-subtle);
  border-radius: 6px;
  padding: var(--panel-padding);
  text-align: center;
  color: var(--text-tertiary);
  font-size: 0.875rem;
}

.agent-tasks {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  border: 1px solid var(--border-subtle);
  border-radius: 6px;
  padding: var(--panel-padding);
  background-color: var(--surface-1);
  min-height: 0;
}

.agent-tasks--dropping {
  border-color: var(--accent-neutral-soft);
  background-color: var(--surface-2);
}

.agent-tasks__header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--space-4);
}

.agent-tasks__title {
  margin: 0;
  font-size: 1rem;
  font-weight: 600;
}

.agent-tasks__count {
  font-weight: 600;
  color: var(--text-secondary);
}

.agent-task-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  position: relative;
}

.agent-task {
  display: flex;
  gap: var(--space-3);
  align-items: flex-start;
  position: relative;
}

.agent-task--drop-before {
  box-shadow: inset 0 3px 0 0 var(--accent-neutral-strong);
}

.agent-task--drop-after {
  box-shadow: inset 0 -3px 0 0 var(--accent-neutral-strong);
}

.agent-task-list--drop-after::after {
  content: '';
  display: block;
  height: 3px;
  background-color: var(--accent-neutral-strong);
  border-radius: 999px;
  margin-top: var(--space-2);
}

.assignments-panel__placeholder--dropping {
  border-color: var(--accent-neutral-soft);
  background-color: var(--surface-2);
}

.agent-status-viewer,
.agent-activity {
  border: 1px solid var(--border-subtle);
  border-radius: 6px;
  padding: var(--panel-padding);
  background-color: var(--surface-1);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.agent-status-viewer__header,
.agent-activity__header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-3);
}

.agent-status-viewer__title,
.agent-activity__title {
  margin: 0;
  font-weight: 600;
  color: var(--text-primary);
}

.agent-status-viewer {
  flex: 1;
  min-height: 0;
}

.agent-status-viewer .text-content-viewer {
  flex: 1;
  min-height: 0;
}

.agent-activity__badges {
  display: flex;
  flex-wrap: nowrap;
  gap: var(--badge-gap);
  align-items: center;
  overflow: hidden;
  padding-bottom: var(--space-1);
  min-height: 2rem;
}

.agent-activity__badges .tool-call-badge {
  flex-shrink: 0;
}

.agent-activity__empty {
  font-size: 0.85rem;
  color: var(--text-tertiary);
}

.agent-delta-line {
  width: 100%;
  padding: var(--space-1) var(--space-2);
  border-radius: 4px;
  background-color: var(--surface-2);
  font-size: 0.8rem;
  color: var(--text-primary);
  white-space: nowrap;
  overflow-x: auto;
  scrollbar-width: thin;
}

.agent-delta-line--empty {
  color: var(--text-tertiary);
}

.agent-delta-ticker {
  margin-top: var(--space-1);
}

.agent-activity__delta-line {
  margin-top: var(--space-1);
}

.agent-status-badge {
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border-radius: 999px;
  padding: 0 var(--space-2);
  height: 1.5rem;
  line-height: 1.5rem;
  border: 1px solid transparent;
}

.agent-status-badge--running {
  background-color: var(--accent-neutral-soft);
  color: var(--text-primary);
  border-color: var(--accent-neutral-soft);
}

.agent-status-badge--idle {
  background-color: transparent;
  color: var(--text-tertiary);
  border-color: var(--border-subtle);
}

.agent-status-badge--error {
  background-color: var(--accent-critical-soft);
  color: var(--accent-critical-strong);
  border-color: var(--accent-critical-strong);
}

@media (max-width: 960px) {
  .assignments-panel__content {
    grid-template-columns: 1fr;
  }
}