/* Chat Page Styles */
.chat-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  box-shadow: 0 4px 12px rgba(102, 126, 234, 0.2);
  position: sticky;
  top: 0;
  z-index: 100;
}

.btn-back {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: none;
  background: rgba(255, 255, 255, 0.2);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.2s;
  flex-shrink: 0;
}

.btn-back:hover {
  background: rgba(255, 255, 255, 0.3);
  transform: scale(1.05);
}

.chat-user-info {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.chat-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid white;
  flex-shrink: 0;
}

.chat-user-details {
  flex: 1;
  min-width: 0;
}

.chat-user-name {
  font-size: 16px;
  font-weight: 700;
  color: white;
  margin: 0 0 2px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.chat-user-status {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.9);
  margin: 0;
}

.chat-user-status.typing {
  font-weight: 500;
  color: #fff;
}

.typing-dots {
  display: inline-flex;
  gap: 3px;
  margin-left: 4px;
}

.typing-dot {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.9);
  animation: typingDotBounce 1.4s infinite;
}

.typing-dot:nth-child(2) {
  animation-delay: 0.2s;
}

.typing-dot:nth-child(3) {
  animation-delay: 0.4s;
}

@keyframes typingDotBounce {
  0%, 60%, 100% {
    transform: translateY(0);
    opacity: 0.7;
  }
  30% {
    transform: translateY(-6px);
    opacity: 1;
  }
}

.btn-more {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: none;
  background: rgba(255, 255, 255, 0.2);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.2s;
  flex-shrink: 0;
}

.btn-more:hover {
  background: rgba(255, 255, 255, 0.3);
  transform: scale(1.05);
}

/* Chat Container */
.chat-container {
  display: flex;
  flex-direction: column;
  height: calc(100vh - 68px);
  background: #f5f5f5;
}

/* Messages Area */
.messages-area {
  flex: 1;
  overflow-y: auto;
  padding: 20px 16px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

/* Message */
.message {
  display: flex;
  gap: 8px;
  max-width: 80%;
  animation: messageSlideIn 0.3s ease-out;
}

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

.message.received {
  align-self: flex-start;
}

.message.sent {
  align-self: flex-end;
  flex-direction: row-reverse;
}

.message-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
  margin-top: 4px;
}

.message-bubble {
  background: white;
  padding: 10px 14px;
  border-radius: 16px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
  position: relative;
}

.message.sent .message-bubble {
  background: linear-gradient(135deg, #667eea, #764ba2);
  color: white;
}

.message-bubble p {
  margin: 0 0 4px;
  font-size: 15px;
  line-height: 1.5;
  word-wrap: break-word;
}

.message-time {
  font-size: 11px;
  color: #999;
  display: block;
  text-align: right;
}

.message.sent .message-time {
  color: rgba(255, 255, 255, 0.8);
}

/* Input Area */
.input-area {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  background: white;
  border-top: 1px solid #e0e0e0;
  box-shadow: 0 -2px 8px rgba(0, 0, 0, 0.05);
}

.btn-attach {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: none;
  background: #f5f5f5;
  color: #667eea;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.2s;
  flex-shrink: 0;
}

.btn-attach:hover {
  background: #e8e8e8;
  transform: scale(1.05);
}

.input-wrapper {
  flex: 1;
  position: relative;
  display: flex;
  align-items: center;
  background: #f5f5f5;
  border-radius: 24px;
  padding-right: 8px;
}

.message-input {
  flex: 1;
  border: none;
  background: transparent;
  padding: 12px 16px;
  font-size: 15px;
  outline: none;
  color: #333;
}

.message-input::placeholder {
  color: #999;
}

.btn-emoji {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: none;
  background: transparent;
  color: #667eea;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.2s;
  flex-shrink: 0;
}

.btn-emoji:hover {
  background: rgba(102, 126, 234, 0.1);
  transform: scale(1.1);
}

.btn-send {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: none;
  background: linear-gradient(135deg, #667eea, #764ba2);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.2s;
  flex-shrink: 0;
  box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}

.btn-send:hover {
  transform: scale(1.05);
  box-shadow: 0 6px 16px rgba(102, 126, 234, 0.4);
}

.btn-send:active {
  transform: scale(0.95);
}

/* Scrollbar */
.messages-area::-webkit-scrollbar {
  width: 6px;
}

.messages-area::-webkit-scrollbar-track {
  background: transparent;
}

.messages-area::-webkit-scrollbar-thumb {
  background: #d0d0d0;
  border-radius: 3px;
}

.messages-area::-webkit-scrollbar-thumb:hover {
  background: #b0b0b0;
}

/* Responsive */
@media (min-width: 768px) {
  .chat-header {
    padding: 16px 20px;
  }
  
  .chat-avatar {
    width: 48px;
    height: 48px;
  }
  
  .chat-user-name {
    font-size: 18px;
  }
  
  .chat-user-status {
    font-size: 13px;
  }
  
  .messages-area {
    padding: 24px 20px;
    max-width: 800px;
    margin: 0 auto;
    width: 100%;
  }
  
  .message {
    max-width: 60%;
  }
  
  .message-bubble p {
    font-size: 16px;
  }
  
  .input-area {
    padding: 16px 20px;
    max-width: 800px;
    margin: 0 auto;
    width: 100%;
  }
}

@media (min-width: 1024px) {
  .chat-container {
    max-width: 1200px;
    margin: 0 auto;
  }
  
  .message {
    max-width: 50%;
  }
}