/* css/message-collapse.css - Styles cho message collapse/expand */

/* Message collapse wrapper */
.message-collapse-wrapper {
  width: 100%;
}

/* Collapsed state với gradient fade - white blend */
.message-content.message-collapsed::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 60px;
  background: linear-gradient(transparent, rgba(255, 255, 255, 0.7));
  border-radius: 0 0 5px 5px;
  pointer-events: none;
}

/* Toggle button styling - horizontal layout */
.message-toggle-btn {
  font-size: 0.75rem;
  padding: 0.4rem 0.8rem;
  border: 1px solid rgba(255, 255, 255, 0.4) !important;
  color: white !important;
  background: rgba(255, 255, 255, 0.15) !important;
  backdrop-filter: blur(10px);
  transition: all 0.3s ease;
  display: flex !important;
  flex-direction: row !important;
  align-items: center !important;
  justify-content: center !important;
  gap: 0.4rem !important;
  margin: 0.75rem auto 0 auto !important;
  width: auto !important;
  min-width: 110px !important;
  border-radius: 8px !important;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1) !important;
}

/* Specific margin for different button states */
.message-toggle-btn.btn-expand {
  margin-top: 0px !important;
}

.message-toggle-btn.btn-collapse {
  margin-top: 10px !important;
}

.message-toggle-btn:hover {
  border-color: rgba(255, 255, 255, 0.6) !important;
  color: white !important;
  background: rgba(255, 255, 255, 0.25) !important;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15) !important;
}

.message-toggle-btn:active {
  transform: translateY(0);
}

/* Icon animation */
.message-toggle-btn i {
  transition: transform 0.2s ease;
}

.message-toggle-btn:hover i {
  transform: scale(1.1);
}

/* Smooth transitions cho expand/collapse */
.message-content {
  transition: max-height 0.3s ease-in-out;
}

/* Bubble với collapse toggle */
.chat-bubble-user.has-collapse-toggle {
  position: relative;
}

/* Responsive adjustments */
@media (max-width: 768px) {
  .message-toggle-btn {
    font-size: 0.7rem;
    padding: 0.35rem 0.6rem;
    min-width: 80px !important;
    margin: 0.5rem auto 0 auto !important;
  }
}

/* Dark mode support - white blend */
@media (prefers-color-scheme: dark) {
  .message-content.message-collapsed::after {
    background: linear-gradient(transparent, rgba(255, 255, 255, 0.7));
    height: 60px;
    border-radius: 0 0 5px 5px;
  }
}

/* Animation cho first message */
.chat-msg.user.first-message {
  animation: slideInFromBottom 0.4s ease-out;
}

@keyframes slideInFromBottom {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Welcome screen hide animation */
#chatbot-welcome.hiding {
  animation: fadeOutUp 0.3s ease-in forwards;
}

@keyframes fadeOutUp {
  from {
    opacity: 1;
    transform: translateY(0);
  }
  to {
    opacity: 0;
    transform: translateY(-20px);
  }
}