html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  font-family: Arial, sans-serif;
  background: #f2f2f2;
}
#chat-container {
  display: flex;
  flex-direction: column;
  height: 100vh;
  max-width: 500px;
  margin: 0 auto;
  background: #fff;
}
#chat-header {
  display: flex;
  align-items: center;
  padding: 10px;
  background: #007BFF;
  color: #fff;
}
#chat-header img {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  margin-right: 10px;
}
#chat-box {
  flex: 1;
  overflow-y: auto;
  padding: 10px;
  background: #fafafa;
}
.message {
  display: flex;
  align-items: flex-start;
  margin-bottom: 10px;
}
.user {
  flex-direction: row-reverse;
}
.message img.avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
}
.bubble {
  max-width: 70%;
  padding: 10px;
  border-radius: 10px;
  margin: 0 10px;
  background: #eee;
  word-wrap: break-word;
}
.user .bubble {
  background: #d1eaff;
}
.bubble img.content-img {
  max-width: 100%;
  border-radius: 6px;
  margin-top: 5px;
}
.timestamp {
  font-size: 12px;
  color: #999;
  margin-top: 4px;
  text-align: right;
}
#input-box {
  display: flex;
  padding: 8px;
  border-top: 1px solid #ccc;
  gap: 6px;
  background: #fff;
}
#emoji-btn, #upload-btn {
  font-size: 20px;
  background: none;
  border: none;
  cursor: pointer;
}
#input {
  flex: 1;
  padding: 8px;
  border: 1px solid #ccc;
  border-radius: 5px;
  font-size: 14px;
}
#send {
  background: #007BFF;
  color: white;
  border: none;
  border-radius: 5px;
  padding: 8px 14px;
  font-size: 14px;
}
#emoji-picker {
  display: none;
  position: absolute;
  bottom: 60px;
  background: #fff;
  border: 1px solid #ccc;
  padding: 6px;
  z-index: 999;
}
#emoji-picker span {
  font-size: 20px;
  padding: 4px;
  cursor: pointer;
}

.name::after {
  content: '';
  display: inline-block;
  width: 8px;
  height: 8px;
  background: #00d400;
  border-radius: 50%;
  margin-left: 8px;
}