:root {
  color-scheme: light dark;
  --font-sans: "Söhne", "Avenir Next", "IBM Plex Sans", "Segoe UI", sans-serif;
  --font-mono: "Berkeley Mono", "SFMono-Regular", "JetBrains Mono", monospace;
  --topbar-control-font-size: 0.94rem;
  --editor-font-size: 16px;
  --comments-pane-width: 360px;
  --bg: #f3f4f6;
  --panel: #ffffff;
  --panel-muted: #f7f8fa;
  --editor: #ffffff;
  --text: #171a21;
  --text-muted: #5e6672;
  --text-soft: #8b93a1;
  --border: #d7dce4;
  --border-strong: #c4cbd5;
  --shadow: 0 8px 22px rgba(15, 23, 42, 0.04);
  --accent: #5a616b;
  --accent-soft: rgba(90, 97, 107, 0.12);
  --primary: #f2c424;
  --primary-soft: rgba(242, 196, 36, 0.18);
  --primary-strong: #d3a60b;
  --danger: #9d6074;
  --success: #51606e;
}

body[data-theme="dark"] {
  --bg: #17181c;
  --panel: #1f2126;
  --panel-muted: #1b1d22;
  --editor: #1c1e23;
  --text: #f2f4f7;
  --text-muted: #afb6c2;
  --text-soft: #8f97a4;
  --border: #2f333b;
  --border-strong: #3b414b;
  --shadow: 0 16px 34px rgba(0, 0, 0, 0.24);
  --accent: #c7ccd4;
  --accent-soft: rgba(199, 204, 212, 0.12);
  --danger: #d08c9f;
  --success: #b4bdc8;
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

html,
body {
  height: 100%;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--text);
  background: var(--bg);
  overflow: hidden;
  transition: background-color 180ms ease, color 180ms ease;
}

body.comment-modal-open {
  overflow: hidden;
}

body.fullscreen-mode {
  overflow: hidden;
}

button,
input,
textarea {
  font: inherit;
}

.app-shell {
  height: 100vh;
  display: grid;
  grid-template-rows: auto 1fr;
  overflow: hidden;
}

.fullscreen-controls {
  position: absolute;
  top: 14px;
  right: 14px;
  z-index: 30;
  display: flex;
  align-items: center;
  gap: 8px;
}

.topbar {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 14px;
  align-items: end;
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
  background: var(--panel);
  box-shadow: var(--shadow);
  transition: background-color 180ms ease, border-color 180ms ease, box-shadow 220ms ease;
}

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

.brand-mark {
  width: 24px;
  height: 24px;
  display: grid;
  place-items: center;
  border-radius: 7px;
  background: var(--panel-muted);
  color: var(--accent);
  font-family: var(--font-mono);
  font-weight: 700;
  border: 1px solid var(--border);
}

.brand-copy {
  display: grid;
  gap: 2px;
}

.brand-copy strong {
  font-size: 0.96rem;
  font-weight: 600;
}

.brand-copy span {
  color: var(--text-muted);
  font-size: 0.8rem;
}

.topbar-controls {
  display: grid;
  grid-template-columns: minmax(180px, 1fr) auto;
  gap: 6px;
  align-items: end;
  min-width: 0;
}

.compact-field {
  display: grid;
  gap: 6px;
  min-width: 0;
}

.compact-label-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.compact-field span,
.session-pill span {
  color: var(--text-soft);
  font-size: 0.66rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.compact-field-hint {
  color: var(--text-muted);
  font-size: 0.68rem;
  letter-spacing: 0;
  text-transform: none;
  white-space: nowrap;
}

.compact-field input {
  width: 100%;
  min-width: 0;
  height: 34px;
  padding: 0 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--panel-muted);
  color: var(--text);
  outline: none;
  font-size: var(--topbar-control-font-size);
  line-height: 1.2;
  transition: border-color 160ms ease, box-shadow 160ms ease, background-color 160ms ease;
}

.compact-field input::placeholder {
  font-size: var(--topbar-control-font-size);
  line-height: 1.2;
}

.compact-field input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.topbar-actions {
  display: flex;
  gap: 6px;
  align-items: center;
}

.primary-button,
.secondary-button,
.ghost-button,
.comment-button,
.comments-tab {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 34px;
  padding: 0 11px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--panel-muted);
  color: var(--text);
  cursor: pointer;
  transition:
    background-color 160ms ease,
    border-color 160ms ease,
    color 160ms ease,
    transform 160ms ease,
    box-shadow 160ms ease;
  font-size: var(--topbar-control-font-size);
  line-height: 1.2;
  font-weight: 500;
}

.primary-button {
  border-color: color-mix(in srgb, var(--primary) 55%, var(--border));
  background: var(--primary);
  color: #221700;
  box-shadow: inset 0 -1px 0 color-mix(in srgb, var(--primary-strong) 35%, transparent);
}

.secondary-button {
  border-color: var(--border);
  background: var(--panel);
}

.ghost-button {
  min-width: 34px;
}

.comment-button {
  height: 30px;
  padding: 0 10px;
  font-size: 0.82rem;
  background: var(--panel);
}

.primary-button:hover,
.secondary-button:hover,
.ghost-button:hover,
.comment-button:hover,
.comments-tab:hover {
  border-color: var(--border-strong);
  transform: translateY(-1px);
}

.primary-button:hover {
  background: color-mix(in srgb, var(--primary) 88%, white);
  border-color: var(--primary-strong);
}

.primary-button:disabled,
.secondary-button:disabled,
.ghost-button:disabled,
.comment-button:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.session-strip {
  display: flex;
  gap: 6px;
  align-items: center;
  justify-content: flex-end;
  align-self: end;
  min-width: 0;
}

.session-pill {
  min-width: 0;
  display: flex;
  align-items: center;
  gap: 6px;
  min-height: 34px;
  padding: 0 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--panel-muted);
  flex-shrink: 1;
  transition:
    background-color 160ms ease,
    border-color 160ms ease,
    box-shadow 160ms ease;
}

.session-pill[data-connection-state="connected"] {
  border-color: color-mix(in srgb, #7fcf9b 34%, var(--border));
  background: color-mix(in srgb, #7fcf9b 11%, var(--panel));
}

.session-pill[data-connection-state="connecting"] {
  border-color: color-mix(in srgb, var(--primary) 32%, var(--border));
  background: color-mix(in srgb, var(--primary) 10%, var(--panel));
}

.session-pill[data-connection-state="disconnected"] {
  border-color: color-mix(in srgb, #d88a8a 28%, var(--border));
  background: color-mix(in srgb, #d88a8a 8%, var(--panel));
}

.session-pill strong {
  font-size: var(--topbar-control-font-size);
  font-weight: 600;
  line-height: 1.2;
  white-space: nowrap;
}

.settings-shell {
  position: relative;
}

.icon-button {
  width: 34px;
  height: 34px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--panel);
  color: var(--text-muted);
  cursor: pointer;
  flex: 0 0 auto;
  transition:
    border-color 160ms ease,
    color 160ms ease,
    background-color 160ms ease,
    transform 160ms ease,
    box-shadow 160ms ease;
}

.icon-button:hover {
  border-color: var(--border-strong);
  color: var(--text);
  background: var(--panel-muted);
  transform: translateY(-1px);
}

.icon-button svg {
  width: 15px;
  height: 15px;
}

.fullscreen-exit-button {
  box-shadow: var(--shadow);
  background: var(--panel);
}

#fullscreen-toggle {
  order: 2;
}

.session-pill {
  order: 1;
}

.settings-shell {
  order: 3;
}

.settings-menu {
  position: absolute;
  right: 0;
  top: calc(100% + 8px);
  z-index: 20;
  width: 320px;
  display: grid;
  gap: 12px;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--panel);
  box-shadow: 0 18px 36px rgba(15, 23, 42, 0.12);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateY(-6px) scale(0.985);
  transform-origin: top right;
  transition: opacity 180ms ease, transform 180ms ease, visibility 180ms ease;
}

.settings-menu.is-open {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateY(0) scale(1);
}

.settings-section {
  display: grid;
  gap: 8px;
}

.settings-menu .compact-field input {
  background: var(--panel-muted);
}

.settings-label {
  color: var(--text-soft);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.segmented-control {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 6px;
}

.segmented-button {
  height: 32px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--panel-muted);
  color: var(--text-muted);
  cursor: pointer;
  font-size: 0.88rem;
  transition: border-color 160ms ease, background-color 160ms ease, color 160ms ease, transform 160ms ease;
}

.segmented-button:hover {
  transform: translateY(-1px);
}

.segmented-button.is-active {
  border-color: var(--primary-strong);
  background: var(--primary-soft);
  color: var(--text);
}

.settings-color-field {
  cursor: default;
}

.color-control {
  display: flex;
  align-items: center;
  gap: 8px;
  height: 34px;
  padding: 0 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--panel-muted);
}

.settings-slider-field {
  cursor: default;
}

.slider-control {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 10px;
  min-height: 34px;
  padding: 0 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--panel-muted);
}

.slider-control input {
  width: 100%;
  accent-color: var(--primary);
}

.slider-control span {
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 0.78rem;
}

.color-control input {
  width: 22px;
  height: 22px;
  padding: 0;
  border: 0;
  background: transparent;
}

.color-control span {
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 0.78rem;
}

.workspace {
  height: 100%;
  min-height: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 8px var(--comments-pane-width);
  overflow: hidden;
  transition: grid-template-columns 220ms ease;
}

body.fullscreen-mode .topbar {
  display: none;
}

body.fullscreen-mode .app-shell {
  grid-template-rows: 1fr;
}

body.fullscreen-mode .workspace {
  height: 100vh;
}

.comments-toggle-button {
  display: none;
}

.editor-pane,
.comments-pane {
  min-height: 0;
  overflow: hidden;
}

.editor-pane {
  position: relative;
  min-width: 0;
  display: grid;
  grid-template-rows: 1fr auto;
  border-right: 1px solid var(--border);
  background: var(--editor);
}

.comments-resizer {
  position: relative;
  background: transparent;
  cursor: col-resize;
  transition: background-color 160ms ease;
}

.comments-resizer::before {
  content: "";
  position: absolute;
  inset: 0;
  margin: 0 auto;
  width: 2px;
  border-radius: 999px;
  background: transparent;
  transition: background-color 160ms ease;
}

.comments-resizer:hover::before,
body.is-resizing-comments .comments-resizer::before {
  background: color-mix(in srgb, var(--primary) 40%, var(--border));
}

.selection-state,
.sync-status,
.comments-room-state,
.comments-header p {
  color: var(--text-muted);
}

.sync-status {
  font-size: 0.9rem;
}

.collaborator-strip {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 6px;
  min-width: 0;
}

.collaborator-avatar {
  position: relative;
  width: 26px;
  height: 26px;
  display: inline-grid;
  place-items: center;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--panel-muted);
  color: var(--text-muted);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  cursor: default;
}

.collaborator-avatar::after {
  content: attr(data-label);
  position: absolute;
  right: 0;
  top: calc(100% + 8px);
  z-index: 5;
  padding: 4px 7px;
  border-radius: 999px;
  background: var(--panel);
  color: var(--text);
  font-size: 0.75rem;
  font-weight: 600;
  white-space: nowrap;
  box-shadow: 0 8px 18px rgba(0, 0, 0, 0.12);
  opacity: 0;
  transform: translateY(-4px);
  pointer-events: none;
  transition: opacity 120ms ease, transform 120ms ease;
}

.collaborator-avatar:hover::after,
.collaborator-avatar:focus-visible::after {
  opacity: 1;
  transform: translateY(0);
}

.editor-frame {
  position: relative;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
  min-height: 0;
  height: auto;
  background: var(--editor);
  overflow: hidden;
  transition: background-color 180ms ease;
}

body.fullscreen-mode .editor-frame {
  height: auto;
}

.editor-surface {
  position: relative;
  min-height: 0;
  min-width: 0;
  overflow: hidden;
}

.editor-empty-state {
  position: absolute;
  top: 24px;
  left: 24px;
  right: 24px;
  z-index: 1;
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: var(--editor-font-size);
  line-height: 1.8;
  pointer-events: none;
  opacity: 0;
}

.editor-surface.is-empty .editor-empty-state {
  opacity: 1;
}

.editor-root,
.cm-editor {
  height: 100%;
  min-height: 100%;
  background: transparent;
}

.cm-editor {
  color: var(--text);
}

.cm-editor.cm-focused {
  outline: none;
}

.cm-content,
.cm-line,
.cm-line * {
  color: var(--text);
}

.cm-scroller {
  overflow: auto;
}

.cm-image-embed {
  display: grid;
  gap: 10px;
  padding: 10px 0 14px;
}

.cm-image-embed-frame {
  position: relative;
  display: inline-block;
  width: fit-content;
  max-width: 100%;
}

.cm-image-embed-image,
.cm-image-embed-missing {
  display: block;
  max-width: min(100%, 720px);
  height: auto;
  border-radius: 14px;
  border: 1px solid var(--border);
  box-shadow: 0 10px 24px rgba(15, 23, 42, 0.06);
  background: var(--panel-muted);
}

.cm-image-embed-missing {
  min-width: 220px;
  padding: 18px;
  color: var(--text-muted);
}

.cm-image-embed-caption {
  color: var(--text-muted);
  font-size: 0.84rem;
}

.cm-image-comment-pin {
  position: absolute;
  transform: translate(-50%, -50%);
  z-index: 3;
  width: 34px;
  height: 34px;
  display: inline-grid;
  place-items: center;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--panel);
  box-shadow: 0 8px 18px rgba(15, 23, 42, 0.18);
  cursor: pointer;
}

.cm-comment-highlight {
  border-radius: 4px;
  background: color-mix(in srgb, var(--primary) 46%, transparent);
  box-shadow: inset 0 -1px 0 color-mix(in srgb, var(--primary-strong) 55%, transparent);
  cursor: pointer;
}

.cm-comment-bubble {
  display: inline-grid;
  place-items: center;
  width: 28px;
  height: 28px;
  margin-left: 6px;
  vertical-align: middle;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--panel);
  box-shadow: 0 8px 18px rgba(15, 23, 42, 0.14);
  cursor: pointer;
}

.editor-statusbar {
  min-height: 30px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 4px 10px;
  border-top: 1px solid var(--border);
  background: var(--panel);
}

body.fullscreen-mode .editor-statusbar {
  display: none;
}

.editor-statusbar-group {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}

.editor-statusbar-group-right {
  margin-left: auto;
}

.selection-state {
  display: inline-flex;
  align-items: center;
  min-height: 22px;
  padding: 0 8px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--panel-muted) 88%, #e5e7eb);
  color: var(--text-muted);
  font-size: 0.82rem;
}

.sync-status,
.status-metric {
  color: var(--text-muted);
  font-size: 0.82rem;
}

.cursor-overlay {
  position: absolute;
  inset: 1px;
  z-index: 2;
  overflow: hidden;
  pointer-events: none;
}

.comment-popover {
  position: absolute;
  z-index: 5;
  display: grid;
  gap: 6px;
  padding: 6px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--panel);
  box-shadow: 0 10px 22px rgba(8, 15, 30, 0.12);
  pointer-events: none;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-4px);
  transition: opacity 120ms ease, transform 120ms ease, visibility 120ms ease;
}

.comment-popover.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.comment-popover[data-placement="below"] {
  transform: translateY(4px);
}

.comment-popover[data-placement="below"].is-visible {
  transform: translateY(0);
}

.comment-popover-button {
  height: 30px;
  padding: 0 12px;
  border: 1px solid var(--primary-strong);
  border-radius: 999px;
  background: var(--primary);
  color: #221700;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  cursor: pointer;
  pointer-events: auto;
}

.comment-popover-button:hover {
  border-color: var(--primary-strong);
  background: color-mix(in srgb, var(--primary) 88%, white);
}

.comment-modal {
  position: fixed;
  inset: 0;
  z-index: 40;
  display: grid;
  place-items: center;
  padding: 28px;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 160ms ease, visibility 160ms ease;
}

.comment-modal.is-open {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.comment-modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(6, 8, 14, 0.48);
  backdrop-filter: blur(8px);
}

.comment-modal-panel {
  position: relative;
  z-index: 1;
  width: min(640px, 100%);
  max-height: min(76vh, 820px);
  display: grid;
  gap: 14px;
  padding: 18px;
  border: 1px solid var(--border);
  border-radius: 18px;
  background: var(--panel);
  color: var(--text);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.26);
  overflow: auto;
}

.comment-modal-header {
  display: flex;
  gap: 12px;
  justify-content: space-between;
  align-items: flex-start;
}

.comment-modal-heading {
  display: grid;
  gap: 4px;
  min-width: 0;
}

.comment-modal-heading h2 {
  margin: 0;
  font-size: 1rem;
  font-weight: 600;
}

.comment-modal-target {
  margin: 0;
  color: var(--text-muted);
  line-height: 1.45;
  font-size: 0.9rem;
}

.comment-modal-body {
  display: grid;
  gap: 12px;
}

.comment-modal-thread-content {
  display: grid;
  gap: 8px;
}

.comment-modal-preview {
  display: grid;
  gap: 6px;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--panel-muted);
}

.comment-modal-preview-target {
  margin: 0;
  font-weight: 500;
}

.comment-modal-preview-hint {
  margin: 0;
  color: var(--text-muted);
}

.comment-modal-empty {
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 12px;
  color: var(--text-muted);
  background: var(--panel-muted);
}

.comment-modal-form {
  display: grid;
  gap: 10px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
}

.comment-modal-field {
  display: grid;
  gap: 6px;
}

.comment-modal-field span {
  color: var(--text-soft);
  font-size: 0.7rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

#comment-modal-input {
  min-height: 90px;
  resize: vertical;
  padding: 12px 13px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--editor);
  color: var(--text);
  outline: none;
}

#comment-modal-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.comment-modal-actions {
  display: flex;
  gap: 10px;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
}

.comment-modal-secondary-actions {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.cursor-bubble {
  position: absolute;
  width: 0;
  height: 0;
  overflow: visible;
}

.cursor-bubble-line {
  position: absolute;
  left: -1px;
  top: 0;
  width: 2px;
  height: 1.8em;
  border-radius: 999px;
  background: color-mix(in srgb, var(--text-muted) 56%, var(--border));
  box-shadow: 0 0 0 1px rgb(0 0 0 / 0.08);
}

.cursor-bubble-label {
  position: absolute;
  left: -1px;
  bottom: calc(100% + 8px);
  transform: translateX(-8px);
  max-width: 180px;
  padding: 4px 8px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--panel);
  color: var(--text);
  font-size: 0.74rem;
  font-weight: 600;
  line-height: 1.2;
  white-space: nowrap;
  box-shadow: 0 8px 18px rgb(0 0 0 / 0.12);
}

.comments-pane {
  min-width: 0;
  display: grid;
  grid-template-rows: auto 1fr;
  background: var(--panel);
  min-height: 0;
  transition: background-color 180ms ease, border-color 180ms ease;
}

body.fullscreen-mode .comments-pane {
  height: 100vh;
}

.comments-flyout-backdrop {
  position: fixed;
  inset: 0;
  z-index: 24;
  background: rgba(7, 10, 18, 0.28);
  backdrop-filter: blur(3px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 180ms ease;
}

body.comments-flyout-open .comments-flyout-backdrop {
  opacity: 1;
  pointer-events: auto;
}

body.settings-flyout-open .comments-flyout-backdrop {
  opacity: 1;
  pointer-events: auto;
}

.comments-header,
.comments-workbench {
  padding-left: 16px;
  padding-right: 16px;
}

.comments-header {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
  padding-top: 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border);
}

.comments-header h2 {
  margin: 0;
  font-size: 0.92rem;
  font-weight: 600;
}

.comments-workbench {
  min-height: 0;
  padding-top: 12px;
  padding-bottom: 12px;
  overflow: auto;
}

.thread-stack-panel {
  min-height: 0;
  display: grid;
  gap: 10px;
  align-content: start;
}

.thread-list {
  display: grid;
  gap: 7px;
  align-content: start;
  overflow: visible;
}

.thread-list-empty {
  display: grid;
  place-items: start;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--panel-muted);
  color: var(--text-muted);
}

.thread-list-empty p {
  margin: 0;
  font-size: 0.88rem;
  color: var(--text-muted);
}

.thread-card {
  display: grid;
  gap: 6px;
  width: 100%;
  padding: 10px 11px;
  border: 1px solid var(--border);
  border-radius: 11px;
  background: var(--panel-muted);
  color: var(--text);
  text-align: left;
  cursor: pointer;
  transition: border-color 160ms ease, background-color 160ms ease, transform 160ms ease, box-shadow 160ms ease;
}

.thread-card:hover {
  border-color: var(--border-strong);
  transform: translateY(-1px);
  box-shadow: 0 10px 24px rgba(15, 23, 42, 0.08);
}

.thread-card-active {
  border-color: var(--border-strong);
  background: color-mix(in srgb, var(--text) 4%, var(--panel-muted));
}

.thread-card-header,
.thread-message-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
}

.thread-card-target,
.thread-card-preview {
  margin: 0;
}

.thread-card-target {
  color: var(--text-muted);
  font-size: 0.76rem;
}

.thread-card-preview {
  color: var(--text);
  font-size: 0.82rem;
  line-height: 1.34;
}

.thread-status {
  padding: 2px 6px;
  border-radius: 999px;
  font-size: 0.64rem;
  text-transform: capitalize;
  background: var(--panel);
  color: var(--text-muted);
  border: 1px solid var(--border);
}

.thread-status-active {
  color: var(--text);
  background: var(--panel);
}

.thread-status-resolved {
  color: var(--text-muted);
  background: var(--panel);
}

.thread-status-archived {
  color: var(--text-soft);
  background: var(--panel);
}

.thread-message-list {
  display: grid;
  gap: 10px;
}

.thread-message {
  display: grid;
  gap: 8px;
  padding: 10px 11px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--panel);
}

.thread-message-root {
  background: var(--panel-muted);
}

.thread-message-header {
  font-size: 0.84rem;
}

.thread-message-body {
  margin: 0;
  line-height: 1.5;
  white-space: pre-wrap;
}

.thread-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.thread-composer {
  display: grid;
  gap: 8px;
  padding-top: 2px;
  border-top: 1px solid var(--border);
}

.thread-composer-field {
  display: grid;
  gap: 6px;
}

.thread-composer-field span {
  color: var(--text-soft);
  font-size: 0.7rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.thread-composer-input {
  min-height: 72px;
  resize: vertical;
  padding: 10px 11px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--panel);
  color: var(--text);
  outline: none;
}

.thread-composer-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.thread-composer-actions {
  display: flex;
  gap: 10px;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
}

.thread-card strong,
.thread-message strong {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.84rem;
}

.swatch {
  display: inline-grid;
  place-items: center;
  width: 16px;
  height: 16px;
  border-radius: 999px;
  background: var(--panel);
  color: var(--text-muted);
  border: 1px solid var(--border);
  font-size: 0.58rem;
  font-weight: 700;
}

.thread-message .swatch {
  width: 16px;
  height: 16px;
  font-size: 0.58rem;
}

.secondary-button-small,
.ghost-button-small {
  height: 28px;
  padding: 0 10px;
  border-radius: 999px;
  font-size: 0.78rem;
}

.reply-hint {
  color: var(--text-soft);
  font-size: 0.82rem;
}

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

  .brand-lockup {
    align-self: start;
  }

  .session-strip {
    justify-content: flex-start;
    flex-wrap: wrap;
  }
}

@media (max-width: 980px), (orientation: portrait) {
  .topbar {
    grid-template-columns: 1fr;
    align-items: start;
  }

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

  .compact-field-hint {
    display: none;
  }

  .session-strip {
    justify-content: flex-start;
  }

  .workspace {
    grid-template-columns: 1fr;
    position: relative;
  }

  .comments-resizer {
    display: none;
  }

  .editor-pane {
    border-right: 0;
  }

  .comments-toggle-button {
    display: inline-flex;
  }

  body.fullscreen-mode .fullscreen-controls .comments-toggle-button {
    display: inline-flex;
  }

  .settings-menu {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    z-index: 26;
    width: min(360px, calc(100vw - 32px));
    border: 0;
    border-left: 1px solid var(--border);
    border-radius: 0;
    padding: 18px 16px 20px;
    box-shadow: -18px 0 42px rgba(8, 15, 30, 0.14);
    opacity: 1;
    visibility: hidden;
    pointer-events: none;
    transform: translateX(100%);
  }

  .settings-menu.is-open {
    visibility: visible;
    pointer-events: auto;
    transform: translateX(0);
  }

  .comments-pane {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    z-index: 25;
    width: min(380px, calc(100vw - 32px));
    min-height: 0;
    border-left: 1px solid var(--border);
    box-shadow: -18px 0 42px rgba(8, 15, 30, 0.14);
    transform: translateX(100%);
    transition:
      transform 220ms ease,
      background-color 180ms ease,
      border-color 180ms ease;
  }

  body.comments-flyout-open .comments-pane {
    transform: translateX(0);
  }
}

@media (max-width: 760px) {
  .topbar-controls {
    grid-template-columns: 1fr;
  }

  .topbar-actions {
    flex-wrap: wrap;
  }

  .session-strip {
    gap: 8px;
  }

  .comments-header,
  .editor-toolbar {
    align-items: start;
    flex-direction: column;
  }

  .editor-toolbar-spacer {
    display: none;
  }

  .session-pill span {
    display: none;
  }
}

@media (max-width: 560px) {
  .topbar {
    padding: 10px;
  }

  .brand-copy span {
    display: none;
  }

  .primary-button,
  .secondary-button,
  .ghost-button,
  .comment-button,
  .comments-tab,
  .session-pill {
    min-height: 32px;
  }

  .session-strip {
    width: 100%;
  }

  .settings-menu,
  .comments-pane {
    width: min(100vw - 12px, 360px);
  }

  .fullscreen-controls {
    top: 10px;
    right: 10px;
  }
}