static/style.css

body, html {
  height: 100%;
  margin: 0;
  background: var(--bg-color);
  background: linear-gradient(to right, var(--gradient-start), var(--gradient-mid), var(--gradient-end));
  color: var(--text-color);
}
:root {
  --bg-color: rgb(44, 47, 59);
  --gradient-start: rgb(38, 51, 61);
  --gradient-mid: rgb(50, 55, 65);
  --gradient-end: rgb(33, 33, 78);
  --card-bg: rgba(0, 0, 0, 0.4);
  --text-color: white;
  --msg-bg: rgb(82, 172, 255);
  --msg-send-bg: #58cc71;
  --placeholder-color: #ccc;
  --input-bg: rgba(0,0,0,0.3);
  --border-color: white;
}
.light-mode {
  --bg-color: #e6e6e6;
  --gradient-start: #dcdcdc;
  --gradient-mid: #e6e6e6;
  --gradient-end: #cfcfcf;
  --card-bg: rgba(255, 255, 255, 0.95);
  --text-color: #222;
  --msg-bg: #3498db;
  --msg-send-bg: #2ecc71;
  --placeholder-color: #666;
  --input-bg: rgba(255, 255, 255, 0.85);
  --border-color: #444;
  
  background-image: linear-gradient(to right, #74ebd5 0%, #9face6 100%)!important;
  color: var(--text-color) !important;
}

.dark-mode {
  --bg-color: #1a1a1a;
  --gradient-start: #2c2f36;
  --gradient-mid: #343a40;
  --gradient-end: #23272a;
  --card-bg: rgba(0, 0, 0, 0.6);
  --text-color: #f8f8f8;
  --msg-bg: #3498db;
  --msg-send-bg: #2ecc71;
  --placeholder-color: #bbb;
  --input-bg: rgba(0,0,0,0.5);
  --border-color: #777;
  
  background-image: linear-gradient(to top, #09203f 0%, #537895 100%)!important;
  color: var(--text-color) !important;
}
.dark-mode .msg_container {
  background-color: var(--msg-bg) !important;
  color: #000000 !important;
}
.dark-mode .msg_container_send {
  background-color: var(--msg-send-bg) !important;
  color: #000000 !important;
}
.dark-mode .type_msg::placeholder {
  color: rgba(255, 255, 255, 0.7) !important;
}
.dark-mode #themeToggle {
  background-color: #ddd !important;
  color: black !important;
  border: 1px solid #333 !important;
}
.light-mode #themeToggle {
  background-color: #333 !important;
  color: white !important;
  border: 1px solid #000 !important;
}
.light-mode .user_info span,
.light-mode .user_info p {
  color: var(--text-color) !important;
}
.light-mode .type_msg {
  background-color: var(--input-bg) !important;
  color: var(--text-color) !important;
  border: 1px solid var(--border-color) !important;
}
::placeholder {
  color: var(--placeholder-color);
  opacity: 1;
}

/* Chat Container */
.chat {
  height: 90vh;
  max-height: 700px;
}
.card {
  height: calc(100%);
  max-height: calc(100%);
  overflow: hidden;
  position: relative;
  background-color: var(--card-bg) !important;
  border-radius: 15px !important;
}
.msg_card_body {
  max-height: 70vh;
  overflow-y: auto;
}

/* Predictive Text */
.predictive-text {
  position: absolute;
  background-color: var(--input-bg);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 5px;
  z-index: 999;
  cursor: pointer;
  max-height: 150px;
  overflow-y: auto;
  width: calc(100% - 22px);
  bottom: 65px;
  left: 10px;
  color: var(--text-color);
}
.predictive-text p {
  margin: 5px 0;
  padding: 5px;
  cursor: pointer;
  transition: background-color 0.3s;
  border-radius: 5px;
}
.predictive-text p:hover {
  background-color: rgba(255, 255, 255, 0.2);
}
.predictive-text p:not(:last-child) {
  border-bottom: 1px solid #555;
}

/* Input Fields */
input[type="text"] {
  white-space: normal;
  overflow-wrap: break-word;
  word-wrap: break-word;
  width: 100%;
  padding: 10px;
  height: auto;
  background-color: var(--input-bg) !important;
  color: var(--text-color) !important;
  border: 0 !important;
}
::placeholder {
  white-space: normal;
  overflow-wrap: break-word;
  word-wrap: break-word;
  color: var(--placeholder-color);
}

/* Button styles */
a {
  text-decoration: underline !important;
  color: blue;
}
.attach_btn, .send_btn, .search_btn {
  border-radius: 15px !important;
  background-color: var(--input-bg) !important;
  border: 0 !important;
  color: var(--text-color) !important;
  cursor: pointer;
}

/* User Info */
.user_info span {
  font-size: 20px;
  color: var(--text-color);
}
.user_info p {
  font-size: 10px;
  color: rgba(255, 255, 255, 0.6);
}

.chat {
  margin-top: auto;
  margin-bottom: auto;
}
.contacts_body {
  padding: 0.75rem 0 !important;
  overflow-y: auto;
  white-space: nowrap;
}
.msg_card_body {
  overflow-y: auto;
}
.card-header {
  border-radius: 15px 15px 0 0 !important;
  border-bottom: 0 !important;
}
.card-footer {
  border-radius: 0 0 15px 15px !important;
  border-top: 0 !important;
}
.container {
  display: flex;
  flex-direction: column;
  height: 100vh;
}
.msg_card_body {
  flex-grow: 1;
}
.search {
  border-radius: 15px 0 0 15px !important;
  background-color: rgba(0,0,0,0.3) !important;
  border: 0 !important;
  color: white !important;
}
.search:focus {
  box-shadow: none !important;
  outline: 0px !important;
}
.type_msg {
  background-color: rgba(0,0,0,0.3) !important;
  border: 0 !important;
  color: white !important;
  height: 60px !important;
  overflow-y: auto;
}
.type_msg:focus {
  box-shadow: none !important;
  outline: 0px !important;
}
.attach_btn {
  border-radius: 15px 0 0 15px !important;
  background-color: rgba(0,0,0,0.3) !important;
  border: 0 !important;
  color: white !important;
  cursor: pointer;
}
.send_btn {
  border-radius: 0 15px 15px 0 !important;
  background-color: rgba(0,0,0,0.3) !important;
  border: 0 !important;
  color: white !important;
  cursor: pointer;
}
.search_btn {
  border-radius: 0 15px 15px 0 !important;
  background-color: rgba(0,0,0,0.3) !important;
  border: 0 !important;
  color: white !important;
  cursor: pointer;
}
.contacts {
  list-style: none;
  padding: 0;
}
.contacts li {
  width: 100% !important;
  padding: 5px 10px;
  margin-bottom: 15px !important;
}
.active {
  background-color: rgba(0,0,0,0.3);
}
.user_img {
  height: 70px;
  width: 70px;
  border: 1.5px solid #f5f6fa;
}
.user_img_msg {
  height: 40px;
  width: 40px;
  border: 1.5px solid #f5f6fa;
}
.img_cont {
  position: relative;
  height: 70px;
  width: 70px;
}
.img_cont_msg {
  height: 40px;
  width: 40px;
}
.online_icon {
  position: absolute;
  height: 15px;
  width: 15px;
  background-color: #4cd137;
  border-radius: 50%;
  bottom: 0.2em;
  right: 0.4em;
  border: 1.5px solid white;
}
.offline {
  background-color: #c23616 !important;
}
.user_info {
  margin-top: auto;
  margin-bottom: auto;
  margin-left: 15px;
}
.user_info span {
  font-size: 20px;
  color: white;
}
.user_info p {
  font-size: 10px;
  color: rgba(255,255,255,0.6);
}
.video_cam {
  margin-left: 50px;
  margin-top: 5px;
}
.video_cam span {
  color: white;
  font-size: 20px;
  cursor: pointer;
  margin-right: 20px;
}
.msg_container {
  background-color: var(--msg-bg);
  padding: 10px;
  border-radius: 25px;
}
.dark-mode .predictive-text {
  background-color: rgba(0, 0, 0, 0.8) !important;
  color: white !important;
  border: 1px solid var(--border-color) !important;
}
.dark-mode .predictive-text p {
  background-color: transparent !important;
  color: white !important;
}
.dark-mode .predictive-text p:hover {
  background-color: rgba(255, 255, 255, 0.2) !important;
}
.msg_container_send {
  background-color: var(--msg-send-bg);
  padding: 10px;
  border-radius: 25px;
  margin-right: 10px;
  padding-left: 20px;
  padding-right: 20px;
}
.msg_time {
  position: absolute;
  left: 0;
  bottom: -15px;
  color: rgba(255,255,255,0.5);
  font-size: 10px;
}
.msg_time_send {
  position: absolute;
  right: 0;
  bottom: -15px;
  color: rgba(255,255,255,0.5);
  font-size: 10px;
}
.msg_head {
  position: relative;
}
#action_menu_btn {
  position: absolute;
  right: 10px;
  top: 10px;
  color: white;
  cursor: pointer;
  font-size: 20px;
}
.action_menu {
  z-index: 1;
  position: absolute;
  padding: 15px 0;
  background-color: var(--input-bg);
  color: var(--text-color);
  border-radius: 15px;
  top: 30px;
  right: 15px;
  display: none;
}
.action_menu ul li {
  width: 100%;
  padding: 10px 15px;
  margin-bottom: 5px;
  cursor: pointer;
}
.action_menu ul li:hover {
  background-color: rgba(0,0,0,0.2);
}
.predefined-text a {
  color: #0a66c2;
  text-decoration: none;
  font-weight: bold;
  margin-right: 10px;
}
.predefined-text a i {
  margin-right: 5px;
}
.predefined-text a:hover {
  text-decoration: underline;
}

/* Mobile Adaptability Enhancements */
@media (max-width: 576px) {
  /* Adjust overall card spacing and sizing */
  .card {
    margin: 10px;
    border-radius: 10px;
  }
  .card-header,
  .card-footer {
    padding: 10px;
  }

  /* Stack header elements vertically and center them */
  .card-header .d-flex {
    flex-direction: column;
    align-items: center;
  }
  .user_info {
    margin-left: 0;
    text-align: center;
    margin-bottom: 10px;
  }
  /* Center the button container */
  .d-flex.flex-column.align-items-end.ml-auto {
    margin: 0 auto;
  }

  /* Adjust chat container height */
  .chat {
    height: 80vh;
  }
  .msg_card_body {
    max-height: 50vh;
  }

  /* Reduce sizes of images for header and messages */
  .img_cont,
  .user_img {
    height: 50px;
    width: 50px;
  }
  .img_cont_msg,
  .user_img_msg {
    height: 30px;
    width: 30px;
  }

  /* Adjust text sizes for header info */
  .user_info span {
    font-size: 18px;
  }
  .user_info p {
    font-size: 10px;
  }

  /* Adjust input field and button sizes */
  .type_msg {
    height: 50px;
    font-size: 14px;
  }
  .btn {
    font-size: 12px;
    padding: 5px 8px;
  }

  /* Adjust predictive text positioning on mobile */
  .predictive-text {
    bottom: 55px;
  }
}