:root {
  --primary: #4361ee;
  --secondary: #3a0ca3;
  --accent: #4cc9f0;
  --dark: #1a1a2e;
  --light: #f8f9fa;
  --success: #4caf50;
  --danger: #f44336;
  --warning: #ff9800;
  --info: #2196f3;
  --gray: #6c757d;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  margin: 0;
  font-family: 'Poppins', sans-serif;
  background-color: var(--dark);
  color: var(--light);
  line-height: 1.6;
}

.app-container {
  max-width: 600px;
  margin: 0 auto;
  padding: 20px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

header {
  display: flex;
  align-items: center;
  gap: 15px;
  padding: 15px 0;
  margin-bottom: 20px;
  border-bottom: 2px solid var(--primary);
  position: relative;
}

.logo {
  width: 50px;
  height: 50px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  color: white;
  font-size: 1.5rem;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

h1 {
  font-size: 1.8rem;
  background: linear-gradient(to right, var(--primary), var(--accent));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  font-weight: 700;
}

.user-status {
  margin-left: auto;
  font-size: 0.8rem;
  color: var(--accent);
  display: flex;
  align-items: center;
  gap: 5px;
}

.user-status::before {
  content: "";
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--accent);
}

.auth-card {
  background-color: rgba(255, 255, 255, 0.05);
  padding: 30px;
  border-radius: 15px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  text-align: center;
  max-width: 400px;
  margin: 0 auto;
}

.auth-card h2 {
  margin-bottom: 10px;
  color: var(--light);
}

.auth-card p {
  color: var(--gray);
  margin-bottom: 25px;
  font-size: 0.9rem;
}

.auth-btn {
  width: 100%;
  padding: 12px;
  border-radius: 8px;
  border: none;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  transition: all 0.3s ease;
  margin-top: 15px;
}

.google-btn {
  background-color: white;
  color: #4285F4;
}

.google-btn:hover {
  background-color: #f1f1f1;
  transform: translateY(-2px);
}

.email-btn {
  background-color: var(--primary);
  color: white;
}

.email-btn:hover {
  background-color: var(--secondary);
  transform: translateY(-2px);
}

.input-group {
  position: relative;
  margin-bottom: 15px;
}

.input-group i {
  position: absolute;
  left: 15px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--gray);
}

.input-group input {
  padding: 12px 15px 12px 40px;
  width: 100%;
  margin-top: 0;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background-color: rgba(255, 255, 255, 0.05);
  color: white;
  border-radius: 8px;
  transition: all 0.3s ease;
}

.input-group input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 2px rgba(67, 97, 238, 0.2);
}

.divider {
  margin: 20px 0;
  text-align: center;
  color: var(--gray);
  position: relative;
  font-size: 0.8rem;
}

.divider::before,
.divider::after {
  content: "";
  position: absolute;
  top: 50%;
  width: 45%;
  height: 1px;
  background-color: rgba(255, 255, 255, 0.1);
}

.divider::before {
  left: 0;
}

.divider::after {
  right: 0;
}

#chat-window {
  height: 60vh;
  overflow-y: auto;
  background-color: rgba(255, 255, 255, 0.05);
  padding: 15px;
  margin-bottom: 15px;
  border-radius: 15px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.message-form {
  margin-bottom: 15px;
}

.message-form .input-group {
  display: flex;
  gap: 10px;
}

.message-form input {
  flex: 1;
  padding-right: 50px;
}

.send-btn {
  position: absolute;
  right: 10px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--primary);
  cursor: pointer;
  font-size: 1.2rem;
}

.my-msg {
  align-self: flex-end;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  padding: 10px 15px;
  border-radius: 15px 15px 0 15px;
  max-width: 80%;
  color: white;
  animation: fadeIn 0.3s ease;
}

.other-msg {
  align-self: flex-start;
  background-color: rgba(255, 255, 255, 0.1);
  padding: 10px 15px;
  border-radius: 15px 15px 15px 0;
  max-width: 80%;
  color: white;
  animation: fadeIn 0.3s ease;
}

.msg-info {
  font-size: 0.7rem;
  opacity: 0.7;
  display: block;
  margin-bottom: 3px;
}

.logout-btn {
  width: 100%;
  padding: 12px;
  border-radius: 8px;
  border: none;
  background-color: rgba(255, 255, 255, 0.1);
  color: var(--danger);
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  transition: all 0.3s ease;
}

.logout-btn:hover {
  background-color: rgba(244, 67, 54, 0.1);
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Responsive Design */
@media (max-width: 768px) {
  .app-container {
    padding: 15px;
  }
  
  header {
    padding: 10px 0;
  }
  
  h1 {
    font-size: 1.5rem;
  }
  
  .auth-card {
    padding: 20px;
  }
  
  #chat-window {
    height: 65vh;
  }
}

@media (max-width: 480px) {
  header {
    flex-direction: column;
    text-align: center;
    gap: 10px;
  }
  
  .user-status {
    margin-left: 0;
  }
  
  #chat-window {
    height: 70vh;
  }
}
/* Add these new styles to your existing CSS */

.chat-container {
    display: flex;
    height: 70vh;
    gap: 15px;
    margin-bottom: 15px;
  }
  
  .contacts-sidebar {
    width: 250px;
    background-color: rgba(255, 255, 255, 0.05);
    border-radius: 15px;
    padding: 15px;
    display: flex;
    flex-direction: column;
  }
  
  .sidebar-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
  }
  
  .sidebar-header h3 {
    color: var(--light);
    font-size: 1.2rem;
  }
  
  .icon-btn {
    background: none;
    border: none;
    color: var(--light);
    cursor: pointer;
    font-size: 1rem;
    padding: 5px;
    border-radius: 50%;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
  }
  
  .icon-btn:hover {
    background-color: rgba(255, 255, 255, 0.1);
  }
  
  .contacts-list {
    flex: 1;
    overflow-y: auto;
  }
  
  .contact-item {
    padding: 10px;
    border-radius: 8px;
    margin-bottom: 5px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 10px;
  }
  
  .contact-item:hover {
    background-color: rgba(255, 255, 255, 0.1);
  }
  
  .contact-item.active {
    background-color: rgba(67, 97, 238, 0.2);
  }
  
  .contact-avatar {
    width: 35px;
    height: 35px;
    border-radius: 50%;
    background-color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
  }
  
  .contact-name {
    font-weight: 500;
  }
  
  .contact-status {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    margin-left: auto;
  }
  
  .contact-status.online {
    background-color: var(--success);
  }
  
  .contact-status.offline {
    background-color: var(--gray);
  }
  
  .chat-main {
    flex: 1;
    display: flex;
    flex-direction: column;
    background-color: rgba(255, 255, 255, 0.05);
    border-radius: 15px;
    overflow: hidden;
  }
  
  .chat-header {
    padding: 15px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: space-between;
  }
  
  #current-chat-info {
    display: flex;
    align-items: center;
    gap: 10px;
  }
  
  .chat-title {
    font-weight: 600;
  }
  
  /* Modal styles */
  .modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    z-index: 1000;
    align-items: center;
    justify-content: center;
  }
  
  .modal-content {
    background-color: var(--dark);
    border-radius: 15px;
    width: 90%;
    max-width: 400px;
    overflow: hidden;
  }
  
  .modal-header {
    padding: 15px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
  }
  
  .close-modal {
    font-size: 1.5rem;
    cursor: pointer;
  }
  
  .modal-body {
    padding: 15px;
  }
  
  #user-search {
    width: 100%;
    padding: 10px 15px;
    margin-bottom: 15px;
    border-radius: 8px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    background-color: rgba(255, 255, 255, 0.05);
    color: white;
  }
  
  .user-list {
    max-height: 300px;
    overflow-y: auto;
  }
  
  .user-item {
    padding: 10px;
    border-radius: 8px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 10px;
  }
  
  .user-item:hover {
    background-color: rgba(255, 255, 255, 0.1);
  }

  .app-footer {
    text-align: center;
    padding: 10px;
    background-color: #062646;
    color: #d9dfe4;
    font-size: 14px;
    border-top: 1px solid #e9ecef;
    position: relative; /* Change from fixed to relative */
    width: 100%;
    margin-top: auto; /* Push the footer to the bottom of the content */
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .chat-container {
      height: 65vh;
    }
    
    .contacts-sidebar {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      z-index: 100;
      display: none;
    }
    
    .contacts-sidebar.active {
      display: flex;
    }
    
    .chat-main {
      width: 100%;
    }
    
    .mobile-only {
      display: block;
    }
  }
  
  @media (min-width: 769px) {
    .mobile-only {
      display: none !important;
    }
  }