:root {
  --pane-conversations: 260px;
  --pane-post: 380px;
  --pane-resizer: 6px;
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

html,
body {
  height: 100%;
}

body {
  margin: 0;
  background: var(--color-page);
  color: var(--color-ink);
}

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

button {
  cursor: pointer;
  background: none;
  border: none;
}

button:disabled {
  cursor: default;
  color: var(--color-disabled);
}

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

input,
select {
  height: var(--control-field);
  padding: 0 var(--space-10);
  border: 1px solid var(--color-field-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  min-width: 0;
}

button:focus-visible,
input:focus-visible,
select:focus-visible,
.timeline:focus-visible,
a:focus-visible {
  outline: var(--space-2) solid var(--color-ink);
  outline-offset: var(--space-2);
}

/* Sign-in */

.signin {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100%;
  padding: var(--space-24);
}

.signin-card {
  width: min(calc(var(--space-24) * 16), 100%);
  display: flex;
  flex-direction: column;
  gap: var(--space-12);
  padding: var(--space-24);
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--elevation-2);
}

.signin-brand {
  color: var(--color-accent);
}

.signin-intro {
  color: var(--color-muted);
}

.signin-error {
  margin: 0;
  color: var(--color-error);
}

.signin-error.ok {
  color: var(--color-success);
}

.field {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
  color: var(--color-muted);
}

/* Layout */

.review {
  display: grid;
  grid-template-columns:
    var(--pane-conversations) var(--pane-resizer) minmax(0, 1fr) var(--pane-resizer) var(--pane-post);
  height: 100%;
  overflow: hidden;
}

.pane-resizer {
  cursor: col-resize;
  touch-action: none;
  background: var(--color-line);
  min-height: 0;
}

.pane-resizer:hover,
.pane-resizer.is-dragging {
  background: color-mix(in srgb, var(--color-accent) 35%, var(--color-line));
}

body.is-pane-resizing {
  cursor: col-resize;
  user-select: none;
}

.pane {
  min-width: 0;
  min-height: 0;
}

.pane-title {
  margin: 0;
  padding: var(--space-8) var(--space-4);
}

.pane-conversations {
  display: flex;
  flex-direction: column;
  min-height: 0;
  padding: var(--space-12);
}

.pane-conversations .conversation-list {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
}

.pane-conversations-foot {
  flex-shrink: 0;
  display: flex;
  justify-content: center;
  padding-block-start: var(--space-12);
  margin-block-start: auto;
}

.pane-timeline {
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.pane-post {
  overflow-y: auto;
  padding: var(--space-16);
  display: flex;
  flex-direction: column;
  gap: var(--space-12);
}

/* Conversations */

.conversation-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
}

.conversation-item {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
  padding: var(--space-8);
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
}

.conversation-item.active {
  border-color: var(--color-ink);
}

.conversation-open {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  padding: 0;
  text-align: left;
}

.conversation-open .t-name {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.conversation-counts,
.conversation-done {
  color: var(--color-muted);
}

.progress {
  height: var(--space-6);
  border-radius: var(--radius-pill);
  background: var(--color-line);
  overflow: hidden;
}

.progress > span {
  display: block;
  height: 100%;
  background: var(--color-success);
}

/* Toolbar */

.toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-8);
  padding: var(--space-10);
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-line);
}

.segmented {
  display: inline-flex;
  overflow: hidden;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-pill);
  background: var(--color-surface);
}

.segmented button {
  height: var(--control-choice-chip);
  padding: 0 var(--space-10);
  color: var(--color-muted);
}

.segmented button[aria-pressed='true'] {
  background: var(--color-accent);
  color: var(--color-surface);
}

.filters {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: var(--space-8);
}

.filters label {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  color: var(--color-muted);
}

.filters input,
.filters select {
  height: var(--control-choice-chip);
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-8);
}

.button-primary,
.button-secondary {
  height: var(--control-choice-chip);
  padding: 0 var(--space-12);
  border-radius: var(--radius-pill);
}

.button-primary {
  background: var(--color-accent);
  color: var(--color-surface);
}

.button-primary:hover {
  background: var(--color-accent-strong);
}

.button-secondary {
  border: 1px solid var(--color-line);
  background: var(--color-surface);
}

.button-secondary:hover {
  border-color: var(--color-ink);
}

.toolbar-status {
  flex-basis: 100%;
  min-height: var(--space-14);
  margin: 0;
  color: var(--color-muted);
}

.toolbar-status.error {
  color: var(--color-error);
}

/* Timeline */

.timeline {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-16);
  display: flex;
  flex-direction: column;
  gap: var(--space-10);
}

.timeline-empty {
  padding: var(--space-16);
  color: var(--color-muted);
}

.bubble {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
  padding: var(--space-10) var(--space-12);
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  box-shadow: var(--elevation-1);
}

.bubble.selected {
  outline: var(--space-2) solid var(--color-ink);
  outline-offset: var(--space-2);
}

.bubble.focused {
  border-color: var(--color-ink);
}

.bubble.missing-post {
  background: var(--color-error-soft);
  border-color: var(--color-error);
}

.bubble.flash {
  animation: flash-warning 2s ease-out;
}

@keyframes flash-warning {
  from {
    background-color: var(--color-warning-soft);
  }
  to {
    background-color: var(--color-surface);
  }
}

.bubble-head {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: var(--space-8);
}

.bubble-time {
  margin-left: auto;
  color: var(--color-muted);
}

.bubble-body {
  margin: 0;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.bubble-controls {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-8);
}

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

.heart-chip {
  height: var(--control-choice-chip);
  padding: 0 var(--space-8);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-pill);
  background: var(--color-surface);
  color: var(--color-muted);
}

.heart-chip[aria-pressed='true'] {
  border-color: var(--color-accent);
  background: var(--color-accent-soft);
  color: var(--color-accent-strong);
}

.reply-block {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--space-4);
}

.reply {
  margin: 0;
  color: var(--color-muted);
  width: 100%;
}

.reply.missing {
  color: var(--color-error);
}

.reply-preview {
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 4;
  overflow: hidden;
  white-space: pre-wrap;
}

.attach-other-link {
  font-weight: 700;
  text-decoration: underline;
  padding: 0;
  color: var(--color-accent);
}

.photo-missing {
  display: block;
  padding: var(--space-8);
  border: 1px dashed var(--color-line);
  border-radius: var(--radius-md);
  color: var(--color-error);
}

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

.row-note {
  margin: 0;
  color: var(--color-warning);
}

.row-note.error {
  color: var(--color-error);
}

/* Photos */

.photo-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-4);
}

.photo-grid img {
  width: 100%;
  height: calc(var(--space-24) * 5);
  object-fit: cover;
  border-radius: var(--radius-md);
  background: var(--color-media-bg);
}

.post-card .photo-grid img {
  height: calc(var(--space-24) * 7);
}

/* Post panel */

.post-card {
  display: flex;
  flex-direction: column;
  gap: var(--space-10);
  padding: var(--space-14);
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  box-shadow: var(--elevation-1);
}

.post-card.dragover {
  outline: var(--space-2) dashed var(--color-accent);
  outline-offset: var(--space-2);
}

.post-inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-10);
}

.comment-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
}

.post-empty {
  padding: var(--space-16);
  color: var(--color-muted);
  text-align: center;
}

.post-head {
  display: flex;
  align-items: flex-start;
  gap: var(--space-10);
}

.post-author {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  min-width: 0;
}

.post-meta,
.post-topic {
  color: var(--color-muted);
}

.post-body {
  margin: 0;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.stamp {
  display: inline-flex;
  align-items: center;
  gap: var(--space-4);
  height: var(--stamp-height);
  padding: 0 var(--space-4);
  border: 1px solid var(--color-accent);
  border-radius: var(--radius-xs);
  background: var(--color-surface);
  color: var(--color-accent);
  white-space: nowrap;
}

.stamp.exceptional {
  background: var(--color-accent);
  color: var(--color-surface);
}

.comment-item {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
  padding-top: var(--space-8);
  border-top: 1px solid var(--color-line-soft);
}

.comment-head {
  display: flex;
  align-items: baseline;
  gap: var(--space-8);
}

.comment-head .bubble-time {
  margin-left: auto;
}

.comment-body {
  margin: 0;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.comment-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-8);
}

.button-link {
  color: var(--color-accent);
  text-decoration: underline;
}

/* History */

.post-history {
  padding: var(--space-12);
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
}

.history-entry {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  padding: var(--space-8) 0;
  border-top: 1px solid var(--color-line-soft);
}

.history-head {
  display: flex;
  align-items: baseline;
  gap: var(--space-8);
}

.history-head .bubble-time {
  margin-left: auto;
}

.history-entry.undone {
  color: var(--color-faint);
}

/* Attach picker (centered modal) */

.attach-modal {
  grid-column: 1 / -1;
  grid-row: 1;
  position: fixed;
  inset: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-24);
}

.attach-modal[hidden] {
  display: none;
}

.attach-modal-backdrop {
  position: absolute;
  inset: 0;
  background: color-mix(in srgb, var(--color-ink) 35%, transparent);
}

.attach-dialog {
  position: relative;
  z-index: 1;
  width: min(44rem, 100%);
  max-height: min(85vh, calc(var(--space-24) * 28));
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-12);
  padding: var(--space-20);
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  box-shadow: var(--elevation-3);
}

.attach-dialog-title {
  margin: 0;
}

.attach-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
}

.attach-option {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
  padding: var(--space-12);
  text-align: left;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  cursor: pointer;
}

.attach-option:hover,
.attach-option.suggested {
  border-color: var(--color-accent);
  background: var(--color-accent-soft);
}

.attach-preview-body {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  align-items: flex-start;
}

.attach-preview-text {
  display: block;
  white-space: pre-wrap;
  color: var(--color-muted);
  line-height: 1.45;
  max-height: calc(1.45em * 4);
  overflow: hidden;
}

.attach-preview-text--full {
  max-height: none;
  overflow: visible;
}

.attach-preview-more {
  padding: 0;
}