html,
body {
  height: 100%;
  color: black;
  overflow: hidden; /* Prevent entire page scrolling */
}

/* Card layout */
.chat-card {
  display: flex;
  flex-direction: column;
  height: calc(100vh - 200px); /* Fixed height for the card */
  padding: 20px;
}

.example-question {
  white-space: normal; /* allow wrapping */
  text-align: left; /* optional */
}

.chat-header {
  margin-bottom: 0.75rem;
}

/* Messages area - now scrollable independently */
.chat-messages {
  flex: 1; /* Take remaining space in the card */
  overflow-y: auto; /* Enable scrolling only for messages */
  padding: 0.75rem 0.25rem 0.75rem 0;
  display: flex;
  flex-direction: column;
}

/* Center empty state within messages area */
.chat-empty {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

/* Message bubbles */
.message {
  margin-bottom: 0.75rem;
}

.bubble {
  display: inline-block;
  padding: 0.6rem 0.9rem;
  border-radius: 14px;
  max-width: 80%;
  white-space: pre-wrap;
  font-size: 0.95rem;
}

.user-msg {
  text-align: right;
}

.user-bubble {
  background-color: #0d6efd;
  color: #ffffff;
}

.bot-msg {
  text-align: left;
}

.bot-bubble {
  background-color: #f3f4f6;
  color: #212529;
}

/* Loading row */
.chat-loading {
  display: none;
  padding: 0.5rem 0;
  font-size: 0.9rem;
  text-align: left;
}

/* Input area fixed at bottom of card */
.chat-input {
  margin-top: 0.25rem;
  padding-top: 0.5rem;
}

/* Drawer scroll areas */
.drawer-scroll {
  max-height: calc(100vh - 120px);
  overflow-y: auto;
}

/* Footer */
footer span {
  line-height: 1.4;
}

/* Source modal styling */
.source-modal {
  border-radius: 0.75rem;
}

#sourceModal .modal-content {
  /* Superhero theme is dark; keep it consistent */
  background-color: #1b2a41;
}

#sourceModal .modal-header {
  background: transparent;
}

#sourceModal .modal-title {
  font-size: 1.05rem;
  font-weight: 600;
}

.source-modal-meta {
  color: rgba(255, 255, 255, 0.7);
}

.source-modal-body {
  white-space: pre-wrap;
  line-height: 1.5;
}

/* Make buttons wrap nicely on small screens */
#sourceModal #sourceModalLinks .btn {
  min-width: 120px;
}

/* Small screen adjustments */
@media (max-width: 768px) {
  /* Navbar brand adjustments */
  .navbar-brand {
    font-size: 0.9rem;
  }

  .navbar-brand img {
    height: 22px !important; /* Reduce icon size */
  }

  /* Button spacing */
  .navbar .d-flex.gap-2 {
    gap: 0.25rem !important;
  }

  /* Header text adjustments */
  .chat-header p {
    font-size: 0.85rem;
    padding: 0.5rem;
    margin-bottom: 0.5rem;
  }

  /* Chat card height adjustment */
  .chat-card {
    height: calc(100vh - 180px);
    padding: 10px;
  }

  /* Message bubbles full width on mobile */
  .bubble {
    max-width: 90%;
  }

  /* Footer text adjustments */
  footer .container-xxl {
    text-align: center;
  }

  footer .text-muted {
    font-size: 0.75rem;
  }
}

/* Extra small screens */
@media (max-width: 576px) {
  .navbar-brand span {
    display: none; /* Hide text, show only icon on very small screens */
  }

  .chat-header p {
    font-size: 0.8rem;
  }

  .bubble {
    max-width: 95%;
    font-size: 0.9rem;
  }

  /* Adjust button text if needed */
  .btn-secondary {
    font-size: 0.8rem;
    padding: 0.25rem 0.5rem;
  }
}