body, html {
  height: 100%;
  margin: 0;
  font-family: 'Poppins', sans-serif;

}

.container {
  display: grid;
  grid-template-columns: 20% 1fr;
  height: 100%;
}

.sidebar {
  background-color: #f2f2f2;
  padding: 1vh;
  overflow-y: auto;
}

.sidebar h1 {
  margin-bottom: 1vh;
  margin-top: 0;
  font-size: 4vh;
}

.sidebar ul {
  list-style-type: none;
  padding: 0;
  margin: 0;
}

.sidebar li {
  cursor: pointer;
  padding: 1vh;
  margin-bottom: 0.5vh;
  font-size: 2vh;
}

.sidebar li.active {
  background-color: #e6e6e6;
}

.chat {
  padding: 1.5vh;
  background-color: #fff;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
}

.chat-header {
  padding-bottom: 0.5vh;
  border-bottom: 0.1vh solid #ccc;
}

.contact-name {
  margin: 0;
  font-size: 4vh;
}

.message-container {
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  position: relative;
  max-height: 85vh;
}

.message {
  display: flex;
  flex-direction: column;
  margin-bottom: 0.75vh;
  margin-top: 0.75vh;
}

.bubble {
  background-color: #f2f2f2;
  padding: 0.75vh;
  border-radius: 1vh;
  word-wrap: break-word;
  max-width: 80%;
}

.bubble.recieved {
  background-color: #f2f2f2;
  padding: 0.75vh;
  border-radius: 1vh;
  word-wrap: break-word;
  max-width: 80%;
}

.bubble.sent {
  background-color: #dcf8c6;
  align-self: flex-end;
  margin-right: 0.4vw;
}

.content {
  margin: 0;
  font-size: 2vh;
}

.message-input {
  display: flex;
  margin-top: 2vh;
}

.message-input input {
  flex: 1;
  padding: 1vh;
  width: 100%;
  height: 3vh;
  font-size: 2vh;
}

.message-input button {
  padding: 1vh 2vh;
  background-color: #4CAF50;
  color: #fff;
  border: none;
  cursor: pointer;
  transition: background-color 0.3s ease;
  font-size: 2vh;
}

#popup {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
  z-index:5000;
}
    
#popup-content {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background-color: white;
  padding: 20px;
  border-radius: 5px;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.3);
}

.popup_input {
  margin: 10px 0;
  padding: 5px;
  font-size: 16px;
  width: 200px;
}

.popup_button {
  padding: 10px 20px;
  font-size: 16px;
  margin: 10px;
}

.add_contact {
/*  position: absolute;*/
  bottom: 0;
/*  width: 100%;*/
  margin: 0;
  padding: 0;
}

.new-contact-input {
  height: 4vh;
  font-size: 2vh;
  width: calc(100% - 6vh);
  border: 0.2vh solid #4CAF50;
  border-radius: 1vh;
  vertical-align: middle;
  text-indent: 0.25vw;
  margin: 0;
  padding: 0;
}

.add-contact-btn {
  vertical-align: middle;
  height: 4.5vh;
  font-size: 3vh;
  width: 4.5vh;
  background-color: #4CAF50;
  color: #fff;
  border: none;
  cursor: pointer;
  border-radius: 0.75vh;
  margin: 0 0 0 0vh;
  padding: 0;
}

#message-box {
  position: fixed;
  top: 2vh;
  left: 50%;
  transform: translateX(-50%);
  background-color: #f65656;
  color: #ffffff;
  padding: 1vh 1vw;
  display: none;
  border-radius: 1vh;
  z-index: 6000;
  font-size: 2.5vh;
  font-family: 'Poppins', sans-serif;
}