.messages-hub {
  --messages-accent: var(--link-color);
  --messages-accent-soft: color-mix(in srgb, var(--link-color) 16%, transparent);
  --messages-accent-strong: color-mix(in srgb, var(--link-color) 34%, transparent);
  --messages-badge-start: color-mix(in srgb, var(--link-color) 72%, white 28%);
  --messages-badge-end: color-mix(in srgb, var(--link-color) 52%, var(--warning-color) 48%);
  width: 100%;
  height: 100%;
  min-height: 0;
  display: flex;
  flex-direction: column;
  border: 1px solid var(--border-medium);
  border-radius: 28px;
  overflow: hidden;
  background:
    radial-gradient(circle at top right, var(--messages-accent-soft), transparent 26%),
    radial-gradient(circle at bottom left, color-mix(in srgb, var(--warning-color) 14%, transparent), transparent 24%),
    linear-gradient(180deg, var(--surface-elevated), var(--surface-color));
}

.messages-hub__sidebar-header,
.messages-hub__panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 22px;
  border-bottom: 1px solid var(--border-light);
}

.messages-hub__eyebrow {
  font-size: 0.72rem;
  font-weight: 800;
  color: var(--link-color);
}

.messages-hub__title {
  margin: 4px 0 0;
  font-size: 1.2rem;
  font-weight: 900;
  color: var(--text-main);
}

.messages-hub__sidebar-actions,
.messages-hub__thread-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.messages-hub__summary {
  padding: 8px 12px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--surface-elevated) 76%, transparent);
  color: var(--text-secondary);
  font-size: 0.75rem;
  font-weight: 800;
}

.messages-hub__close,
.messages-hub__back {
  height: 38px;
  padding: 0 14px;
  border: 1px solid var(--border-light);
  border-radius: 14px;
  background: color-mix(in srgb, var(--surface-elevated) 80%, transparent);
  color: var(--text-main);
  font: inherit;
  font-weight: 800;
  cursor: pointer;
}

.messages-hub__thread-list {
  flex: 1;
  min-height: 0;
  padding: 14px;
  overflow-y: auto;
}

.messages-hub__thread-list--full {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.messages-hub__thread {
  width: 100%;
  display: grid;
  grid-template-columns: 52px 1fr auto;
  align-items: center;
  gap: 12px;
  padding: 12px;
  border: 1px solid transparent;
  border-radius: 20px;
  background: color-mix(in srgb, var(--surface-elevated) 88%, transparent);
  color: inherit;
  text-align: right;
  cursor: pointer;
  transition: background var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast);
}

.messages-hub__thread:hover,
.messages-hub__thread.is-active,
.messages-hub__thread:focus-within {
  border-color: var(--messages-accent-strong);
  background: var(--surface-hover);
  transform: translateY(-1px);
}

.messages-hub__thread-main-button {
  min-width: 0;
  width: 100%;
  padding: 0;
  border: 0;
  background: transparent;
  color: inherit;
  font: inherit;
  text-align: right;
  cursor: pointer;
}

.messages-hub__thread-avatar,
.messages-hub__panel-avatar,
.messages-hub__message-avatar,
.messages-hub__message-avatar-spacer {
  position: relative;
  width: 52px;
  height: 52px;
  flex: 0 0 auto;
}

.messages-hub__panel-avatar {
  width: 56px;
  height: 56px;
}

.messages-hub__message-avatar,
.messages-hub__message-avatar-spacer {
  width: 38px;
  height: 38px;
  display: block;
}

.messages-hub__thread-avatar--button,
.messages-hub__panel-avatar--button,
.messages-hub__message-avatar--button {
  padding: 0;
  border: 0;
  background: transparent;
  cursor: pointer;
}

.messages-hub__thread-avatar--button,
.messages-hub__panel-avatar--button {
  display: inline-flex;
}

.messages-hub__message-avatar--button {
  display: inline-flex;
}

.messages-hub__thread-avatar--button:focus-visible,
.messages-hub__panel-avatar--button:focus-visible,
.messages-hub__message-avatar--button:focus-visible {
  outline: 2px solid var(--messages-accent);
  outline-offset: 3px;
}

.messages-hub__thread-avatar img,
.messages-hub__panel-avatar img,
.messages-hub__message-avatar img {
  width: 100%;
  height: 100%;
  border-radius: 18px;
  object-fit: cover;
  display: block;
}

.messages-hub__message-avatar img {
  border-radius: 14px;
}

.messages-hub__thread-online {
  position: absolute;
  left: 2px;
  bottom: 2px;
  width: 11px;
  height: 11px;
  border: 2px solid var(--surface-color);
  border-radius: 50%;
}

.messages-hub__thread-online--online,
.messages-hub__panel-presence-dot--online {
  background: var(--success-color);
}

.messages-hub__thread-online--offline,
.messages-hub__panel-presence-dot--offline {
  background: var(--danger-color);
}

.messages-hub__thread-main {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 5px;
}

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

.messages-hub__thread-name,
.messages-hub__panel-name,
.messages-hub__empty-title {
  font-size: 0.98rem;
  font-weight: 900;
  color: var(--text-main);
}

.messages-hub__thread-time,
.messages-hub__thread-preview,
.messages-hub__panel-status,
.messages-hub__bubble-time,
.messages-hub__empty-copy,
.messages-hub__loading {
  font-size: 0.78rem;
  color: var(--text-muted);
}

.messages-hub__panel-status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.messages-hub__panel-presence-dot {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  flex: 0 0 auto;
}

.messages-hub__panel-status-note {
  line-height: 1.35;
}

.messages-hub__thread-preview {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.messages-hub__thread-badge {
  min-width: 24px;
  height: 24px;
  padding: 0 7px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--messages-badge-start), var(--messages-badge-end));
  color: var(--text-inverse);
  font-size: 0.72rem;
  font-weight: 900;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.messages-hub__thread-badge--ghost {
  visibility: hidden;
}

.messages-hub__panel-headline {
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 14px;
}

.messages-hub__panel-person {
  display: flex;
  align-items: center;
  gap: 14px;
}

.messages-hub__conversation {
  flex: 1;
  min-height: 0;
  padding: 18px 24px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.messages-hub__notice {
  margin: 0 24px 18px;
  padding: 14px 16px;
  border: 1px solid var(--messages-accent-strong);
  border-radius: 18px;
  background: color-mix(in srgb, var(--info-color) 12%, var(--surface-elevated) 88%);
}

.messages-hub__notice--warn {
  border-color: color-mix(in srgb, var(--warning-color) 35%, transparent);
  background: color-mix(in srgb, var(--warning-color) 12%, var(--surface-elevated) 88%);
}

.messages-hub__notice--danger {
  border-color: color-mix(in srgb, var(--danger-color) 35%, transparent);
  background: color-mix(in srgb, var(--danger-color) 12%, var(--surface-elevated) 88%);
}

.messages-hub__notice-title {
  color: var(--text-main);
  font-size: 0.9rem;
  font-weight: 900;
}

.messages-hub__notice-copy {
  margin-top: 4px;
  color: var(--text-secondary);
  font-size: 0.82rem;
  line-height: 1.7;
}

.messages-hub__message-row {
  display: flex;
  align-items: flex-end;
  gap: 10px;
  width: 100%;
}

.messages-hub__message-row.is-mine {
  flex-direction: row-reverse;
}

.messages-hub__message-row.is-series-start:not(:first-child) {
  margin-top: 8px;
}

.messages-hub__bubble {
  max-width: min(74%, 560px);
  padding: 12px 14px;
  border: 1px solid var(--border-light);
  border-radius: 18px 18px 18px 6px;
  background: color-mix(in srgb, var(--surface-elevated) 84%, transparent);
  overflow: hidden;
}

.messages-hub__bubble.is-mine {
  border-radius: 18px 18px 6px 18px;
  background: linear-gradient(135deg, color-mix(in srgb, var(--info-color) 30%, transparent), color-mix(in srgb, var(--link-color) 22%, transparent));
}

.messages-hub__bubble-text {
  color: var(--text-main);
  font-size: 0.92rem;
  line-height: 1.8;
  white-space: pre-wrap;
  word-break: break-word;
}

.messages-hub__bubble-time {
  margin-top: 6px;
}

.messages-hub__composer {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 14px;
  padding: 18px 24px 24px;
  border-top: 1px solid var(--border-light);
}

.messages-hub__composer.is-disabled {
  opacity: 0.92;
}

.messages-hub__input {
  min-height: 92px;
  resize: none;
  border: 1px solid var(--border-light);
  border-radius: 20px;
  background: color-mix(in srgb, var(--surface-color) 88%, transparent);
  color: var(--text-main);
  padding: 14px 16px;
  font: inherit;
  outline: none;
}

.messages-hub__input[disabled] {
  cursor: not-allowed;
  opacity: 0.78;
  background: color-mix(in srgb, var(--surface-hover) 82%, transparent);
}

.messages-hub__send {
  min-width: 112px;
  align-self: end;
  height: 48px;
  border: 0;
  border-radius: 16px;
  background: linear-gradient(135deg, color-mix(in srgb, var(--info-color) 80%, white 20%), color-mix(in srgb, var(--link-color) 80%, white 20%));
  color: var(--text-inverse);
  font: inherit;
  font-weight: 900;
  cursor: pointer;
}

.messages-hub__send[disabled] {
  opacity: 0.65;
  cursor: not-allowed;
}

.messages-hub__error {
  margin: 12px 0;
  padding: 12px 14px;
  border: 1px solid color-mix(in srgb, var(--danger-color) 35%, transparent);
  border-radius: 16px;
  background: color-mix(in srgb, var(--danger-color) 12%, var(--surface-elevated) 88%);
  color: var(--danger-color);
  font-size: 0.84rem;
}

.messages-hub__empty,
.messages-hub__loading {
  margin: auto;
  text-align: center;
  padding: 24px;
}

@media (max-width: 960px) {
  .messages-hub__sidebar-header,
  .messages-hub__panel-header,
  .messages-hub__sidebar-actions,
  .messages-hub__thread-actions {
    align-items: flex-start;
    flex-direction: column;
  }

  .messages-hub__composer {
    grid-template-columns: 1fr;
  }

  .messages-hub__send {
    width: 100%;
  }

  .messages-hub__bubble {
    max-width: 100%;
  }
}