:root {
  --bubble-mine: #4f6bff;
  --bubble-mine-text: #ffffff;
  --bubble-theirs: #ffffff;
  --bubble-theirs-text: #1b1d22;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bubble-theirs: #2a2d38;
    --bubble-theirs-text: #eef0f5;
  }
}

.primary-btn { width: 100%; }

.messages {
  flex: 1;
  overflow-y: auto;
  padding: 18px 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.msg-row {
  display: flex;
  flex-direction: column;
  max-width: 76%;
}

.msg-row.mine {
  align-self: flex-end;
  align-items: flex-end;
}

.msg-row.theirs {
  align-self: flex-start;
  align-items: flex-start;
}

.msg-with-avatar {
  display: flex;
  align-items: flex-start;
  gap: 8px;
}

.msg-content {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.msg-nickname {
  font-size: 11px;
  color: var(--text-muted);
  margin: 0 4px 3px;
}

.msg-bubble-wrap {
  display: flex;
  align-items: flex-end;
  gap: 6px;
}

.msg-row.mine .msg-bubble-wrap {
  flex-direction: row-reverse;
}

.msg-bubble {
  padding: 10px 14px;
  border-radius: 18px;
  font-size: 14.5px;
  line-height: 1.45;
  word-break: break-word;
  white-space: pre-wrap;
  box-shadow: 0 1px 1px rgba(0,0,0,0.04);
}

.msg-row.mine .msg-bubble {
  background: var(--bubble-mine);
  color: var(--bubble-mine-text);
  border-bottom-right-radius: 4px;
}

.msg-row.theirs .msg-bubble {
  background: var(--bubble-theirs);
  color: var(--bubble-theirs-text);
  border: 1px solid var(--border);
  border-bottom-left-radius: 4px;
}

.msg-time {
  font-size: 10.5px;
  color: var(--text-muted);
  white-space: nowrap;
  margin-bottom: 2px;
}

.msg-system {
  align-self: center;
  color: var(--text-muted);
  font-size: 12px;
  background: transparent;
  padding: 4px 10px;
  text-align: center;
}

.typing-indicator {
  padding: 0 18px 6px;
  font-size: 12px;
  color: var(--text-muted);
  font-style: italic;
}

.message-form {
  display: flex;
  gap: 10px;
  padding: 14px 16px;
  background: var(--card-bg);
  border-top: 1px solid var(--border);
}

.message-form input {
  flex: 1;
  min-width: 0;
  padding: 12px 14px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
  font-size: 15px;
  outline: none;
}

.message-form input:focus {
  border-color: var(--accent);
}

.message-form .primary-btn {
  width: auto;
  padding: 12px 20px;
}

@media (max-width: 480px) {
  .msg-row {
    max-width: 88%;
  }
}