/* Room + Thread layout */
.room-with-thread {
  display: flex;
  flex: 1;
  min-height: 0;
  overflow: hidden;
}

.room-with-thread__main {
  display: flex;
  flex: 1;
  flex-direction: column;
  min-width: 0;
  position: relative;
}

.room-with-thread__side {
  background: var(--surface, oklch(0.98 0 0));
  border-inline-start: 3px solid oklch(0.55 0.15 250);
  display: none;
  flex-direction: column;
  overflow: hidden;
  width: 380px;
}

.room-with-thread__side.thread-panel--open {
  display: flex;
}

/* Thread panel */
.thread-panel {
  display: flex;
  flex: 1;
  flex-direction: column;
  min-height: 0;
}

.thread-panel__header {
  align-items: center;
  border-block-end: 1px solid oklch(0.85 0 0);
  display: flex;
  flex-shrink: 0;
  font-size: 1rem;
  justify-content: space-between;
  padding: 0.75rem 1rem;
}

.thread-panel__close {
  background: none;
  border: none;
  color: oklch(0.4 0 0);
  cursor: pointer;
  font-size: 1.5rem;
}

.thread-panel__close:hover {
  color: oklch(0.2 0 0);
}

.thread-panel__parent {
  border-block-end: 1px solid oklch(0.9 0 0);
  flex-shrink: 0;
  max-height: 200px;
  overflow-y: auto;
  padding: 0.5rem;
}

.thread-panel__parent .message {
  margin: 0;
}

.thread-panel__separator {
  background: oklch(0.95 0 0);
  color: oklch(0.5 0 0);
  font-size: 0.75rem;
  padding: 0.4rem 1rem;
  text-align: center;
}

.thread-panel__replies {
  flex: 1;
  overflow-y: auto;
  padding: 0.5rem;
}

/* Thread message (simplified message for panel) */
.thread-message {
  padding: 0.5rem 0.75rem;
}

.thread-message + .thread-message {
  border-block-start: 1px solid oklch(0.92 0 0);
}

.thread-message__header {
  align-items: center;
  display: flex;
  gap: 0.5rem;
  margin-block-end: 0.25rem;
}

.thread-message__avatar {
  border-radius: 50%;
  flex-shrink: 0;
  height: 20px;
  object-fit: cover;
  width: 20px;
}

.thread-message__author {
  font-size: 0.85rem;
}

.thread-message__time {
  color: oklch(0.55 0 0);
  font-size: 0.75rem;
}

.thread-message__body {
  font-size: 0.9rem;
  padding-inline-start: 1.75rem;
}

.thread-panel__composer {
  border-block-start: 1px solid oklch(0.85 0 0);
  flex-shrink: 0;
  padding: 0.75rem;
}

.thread-panel__form {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.thread-panel__input-row {
  align-items: flex-end;
  display: flex;
  gap: 0.5rem;
}

.thread-panel__text-input {
  border: 1px solid oklch(0.8 0 0);
  border-radius: 0.5rem;
  flex: 1;
  font-size: 0.9rem;
  min-height: 36px;
  outline: none;
  padding: 0.5rem 0.75rem;
}

.thread-panel__text-input:focus {
  border-color: oklch(0.6 0 0);
}

.thread-panel__send {
  flex-shrink: 0;
  padding: 0.5rem;
}

/* Active thread message highlight */
.message--thread-active {
  background: oklch(0.95 0.02 250 / 0.5);
  border-inline-end: 3px solid oklch(0.55 0.15 250);
}

/* Thread indicator on messages */
.thread-indicator {
  align-items: center;
  background: none;
  border: none;
  color: oklch(0.45 0.15 250);
  cursor: pointer;
  display: flex;
  font-size: 0.8rem;
  gap: 0.35rem;
  margin-block-start: 0.25rem;
  padding: 0.2rem 0;
}

.thread-indicator:hover {
  color: oklch(0.35 0.15 250);
  text-decoration: underline;
}

/* Dark mode */
@media (prefers-color-scheme: dark) {
  .room-with-thread__side {
    background: oklch(0.15 0 0);
    border-color: oklch(0.25 0 0);
  }

  .thread-panel__header {
    border-color: oklch(0.25 0 0);
  }

  .thread-panel__close {
    color: oklch(0.6 0 0);
  }

  .thread-panel__close:hover {
    color: oklch(0.8 0 0);
  }

  .thread-panel__parent {
    border-color: oklch(0.25 0 0);
  }

  .thread-panel__separator {
    background: oklch(0.2 0 0);
    color: oklch(0.5 0 0);
  }

  .thread-panel__composer {
    border-color: oklch(0.25 0 0);
  }

  .thread-panel__input-row trix-editor {
    background: oklch(0.2 0 0);
    border-color: oklch(0.35 0 0);
    color: white;
  }
}

/* Mobile */
@media (max-width: 768px) {
  .room-with-thread__side {
    bottom: 0;
    left: 0;
    position: fixed;
    right: 0;
    top: 0;
    width: 100%;
    z-index: 100;
  }
}