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

body {
  font-family: Arial, sans-serif;
  height: 100vh;
  display: flex;
  flex-direction: column;
  color: #333;
  overflow: hidden; /* prevent scrolling outside the main layout */
}

/* Container for the entire layout */
.app-container {
  display: flex;
  flex: 1;
  overflow: hidden;
}

/* --- SIDEBAR --- */
.sidebar {
  width: 250px;
  background-color: #f8f8f8;
  border-right: 1px solid #ddd;
  padding: 16px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  /* On desktop, sidebar is visible in its full width */
}

/* Close button (inside sidebar) */
.close-sidebar-btn {
  display: none; /* hidden on desktop */
  position: absolute;
  top: 10px;
  right: 10px;
  background: transparent;
  border: none;
  font-size: 1.5rem;
  color: #333;
  cursor: pointer;
}

/* Sidebar content spacing */
.sidebar h2 {
  margin-bottom: 1rem;
  font-size: 1.2rem;
}

.sidebar nav,
.pre-prompts ul {
  list-style: none;
  padding-left: 0;
  margin-bottom: 1rem;
}

.nav-list {
  list-style: none;
  padding-left: 0;
  margin-bottom: 1rem;
}

.nav-list li {
  margin-bottom: 0.5rem;
}

.nav-btn {
  width: 100%;
  padding: 8px 12px;
  background-color: transparent;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  text-align: left;
  transition: background-color 0.2s ease;
  font-size: 0.95rem;
}

.nav-btn i {
  margin-right: 8px;
}

.nav-btn:hover {
  background-color: #ddd;
}

body.dark-mode .nav-btn {
  background-color: #3c3c3c;
  color: #f0f0f0;
}

body.dark-mode .nav-btn:hover {
  background-color: #4c4c4c;
}

.sidebar nav {
  margin-bottom: 60px;
}

.pre-prompts h3 {
  margin-bottom: 0.5rem;
  font-size: 1rem;
}

.pre-prompts-list {
  list-style: none;
  padding-left: 0;
  margin-bottom: 1rem;
}

.pre-prompts-list li {
  margin-bottom: 0.5rem;
}

.pre-prompt-btn {
  width: 100%;
  padding: 12px;
  background-color: transparent;
  border: 1px solid #ccc;
  border-radius: 4px;
  cursor: pointer;
  text-align: center;
  transition: background-color 0.2s ease;
  font-size: 0.95rem;
}

.pre-prompt-btn:hover {
  background-color: #ddd;
}

body.dark-mode .pre-prompt-btn {
  background-color: #3c3c3c;
  border-color: #555;
  color: #f0f0f0;
}

body.dark-mode .pre-prompt-btn:hover {
  background-color: #4c4c4c;
}

.dark-mode-toggle {
  margin-top: 8rem;
  padding: 10px;
  border: none;
  background: #e0e0e0;
  cursor: pointer;
  border-radius: 4px;
  font-weight: bold;
  width: 100%;
}

/* --- MAIN CHAT AREA --- */
.chat-area {
  max-width: 100%;
  flex: 1;
  display: flex;
  flex-direction: column;
  background-color: #ffffff;
}

.chat-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
  height: 60px;
  border-bottom: 1px solid #ddd;
  background-color: #fff;
}

.chat-header-left {
  display: flex;
  align-items: center;
  gap: 16px;
}

.chat-header-left h1 {
  font-size: 1.2rem;
  font-weight: bold;
}

.chat-header-right button {
  margin-left: 8px;
  padding: 6px 12px;
  border: none;
  background-color: #f0f0f0;
  border-radius: 4px;
  cursor: pointer;
}

.chat-content {
  flex: 1;
  padding: 16px;
  overflow-y: auto;
}

.chat-input {
  display: inline-block;
  width: 60%;
  height: 120px;
  margin: 10px auto;
  align-items: center;
  border: 1px solid #ddd;
  border-radius: 15px;
  padding: 8px;
}

.chat-input .message input {
  width: 95%;
  padding: 8px;
  margin: 15px;
  border: none;
  border-radius: 4px;
}

.chat-input input:focus {
  outline: none;
  border-color: transparent;
  box-shadow: none;
}

.chat-input .btn {
  margin-left: 10px;
  margin-right: 5px;
  width: 96%;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.chat-input button i{
  margin: 0 auto;
}

.chat-input button:nth-child(1) {
  width: 35px;
  height: 32px;
  border: none;
  background-color: #007bff;
  color: #fff;
  border-radius: 50%;
  cursor: pointer;
}

.chat-input button:nth-child(3) {
  margin-right: 10px;
  padding: 8px 16px;
  border: none;
  background-color: #007bff;
  color: #fff;
  border-radius: 50%;
  cursor: pointer;
}

/* Basic styling for the PDF content container */
#pdfContent {
  background-color: #f8f9fa;
  white-space: pre-wrap;
  font-family: monospace;
}

/* --- DARK MODE STYLES --- */
body.dark-mode {
  background-color: #1e1e1e;
  color: #f0f0f0;
}

body.dark-mode .sidebar {
  background-color: #2b2b2b;
  border-right-color: #444;
}

body.dark-mode .chat-header {
  background-color: #2b2b2b;
  border-bottom-color: #444;
}

body.dark-mode .chat-area {
  background-color: #1e1e1e;
}

body.dark-mode .chat-content {
  background-color: #1e1e1e;
}

body.dark-mode .chat-input {
  border-top-color: #444;
}

body.dark-mode .chat-input input {
  background-color: #2b2b2b;
  color: #f0f0f0;
  border-color: #444;
}

body.dark-mode .chat-input button {
  background-color: #007bff;
  color: #fff;
}

body.dark-mode .chat-header-right button {
  background-color: #444;
  color: #fff;
}

body.dark-mode .dark-mode-toggle {
  background-color: #444;
  color: #fff;
}

.nav-btn i,
.pre-prompt-btn i {
  color: #bbb;
}

/* --- RESPONSIVE STYLES --- */

/* Hide hamburger button by default */
.hamburger-btn {
  display: none;
}

/* Mobile and Tablet adjustments */
@media (max-width: 768px) {
  /* Show hamburger button */
  .hamburger-btn {
    display: block;
    position: fixed;
    top: 10px;
    left: 10px;
    z-index: 1001;
    background-color: #007bff;
    border: none;
    color: #fff;
    width: 40px;
    height: 40px;
    border-radius: 50%;
  }
  
  /* Make sidebar off-canvas by default, with different widths for mobile vs. tablet */
  @media (max-width: 576px) {
    /* Mobile: full width */
    .sidebar {
      position: fixed;
      top: 0;
      left: -100%;
      width: 100%;
      height: 100%;
      transition: left 0.3s ease;
      z-index: 1000;
    }
    .sidebar.active {
      left: 0;
    }
  }
  
  @media (min-width: 577px) and (max-width: 768px) {
    /* Tablet: 50% width */
    .sidebar {
      position: fixed;
      top: 0;
      left: -50%;
      width: 50%;
      height: 100%;
      transition: left 0.3s ease;
      z-index: 1000;
    }
    .sidebar.active {
      left: 0;
    }
  }
  
  /* Show the close button inside sidebar on mobile/tablet */
  .close-sidebar-btn {
    display: block;
  }
  
  /* Adjust main chat area so it occupies full screen when sidebar is hidden */
  .chat-area {
    max-width: 100%;
    flex: 1;
    margin-left: 0;
  }
  
  /* Optionally, adjust chat-input width for mobile */
  .chat-input {
    width: 90%;
  }
  
  /* ADDITION: Give the chat header-left some left margin so that the text "Chad AI" doesn't overlap with the hamburger icon */
  .chat-header-left {
    margin-left: 60px;
  }
}

.user-msg {
  background-color: transparent;
  font-family: Arial, sans-serif;
  border: 1px solid #ccc;
  padding: 18px;
  width: 50%;
  border-radius: 8px;
  margin-bottom: 6px;
  text-align: right;
  margin-left: auto;
}

.document-controls {
  margin-top: 20px;
}

#uploadedFilesList {
  margin-top: 10px;
  max-height: 150px;
  overflow-y: auto;
  font-size: 0.9rem;
  padding-left: 8px;
  border-left: 2px solid #ccc;
}

#uploadedFilesList p {
  margin-bottom: 4px;
  color: #333;
}

body.dark-mode #uploadedFilesList p {
  color: #f0f0f0;
}

#chatContent h3 {
  margin-bottom: 10px;
  font-size: 1.1rem;
}

#chatContent div {
  width: 100%;
  font-size: 0.9rem;
}


.uploaded-files-chat {
  margin: 8px 0;
  font-size: 0.9rem;
}
.uploaded-files-chat ul {
  list-style: disc inside;
  padding-left: 0;
  margin: 0;
}
.uploaded-files-chat li {
  margin-bottom: 2px;
}

 /* Card container */
    .card {
      background: #ffffff;
      margin: auto;
      width: 100%;
      max-width: 400px;
      padding: 20px;
      border-radius: 12px;
      box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
      transition: transform 0.2s ease;
      display: none;
    }
    .card:hover {
      transform: translateY(-4px);
    }

    /* Input fields */
    .card input.item-input {
      width: 100%;
      padding: 10px 12px;
      margin-bottom: 12px;
      border: 1px solid #d1d9e6;
      border-radius: 6px;
      font-size: 16px;
      transition: border-color 0.2s;
    }
    .card input.item-input:focus {
      outline: none;
      border-color: #5b9dff;
      box-shadow: 0 0 0 2px rgba(91, 157, 255, 0.2);
    }

    .card h4{
      margin: 10px;
    }

    /* Button group */
    .buttons {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
    }
    .buttons button {
      flex: 1 1 calc(33.33% - 8px);
      padding: 10px 0;
      font-size: 14px;
      border: none;
      border-radius: 6px;
      cursor: pointer;
      transition: background-color 0.2s;
    }
    #addBtn { background-color: #28a745; color: #fff; }
    #addBtn:hover { background-color: #218838; }
    #removeBtn { background-color: #dc3545; color: #fff; }
    #removeBtn:hover { background-color: #c82333; }
    #submitBtn { background-color: #007bff; color: #fff; }
    #submitBtn:hover { background-color: #0069d9; }

/* Export PDF button styling */
/* Center the SVG and remove extra padding */
.export-pdf-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  max-width:20px; 
  cursor: pointer;  
  border:none;
}

/* Slight lift on hover */
.export-pdf-btn:hover svg {
  transform: scale(1.1);
}
.export-pdf-btn svg {
  transition: transform 0.2s ease;
}


/* make export + remove buttons line up */
.btncontainerDiv {
  display: flex;
  align-items: center;
  gap: 8px;       /* space between buttons */
}

.btncontainerDiv .remove-msg-btn {
  margin-left: 8px;
  background-color: transparent;
  border:none;
}
















/* Bubble messages: fluid widths */
.user-msg {
  width: auto;
  font-family: Arial, sans-serif
  max-width: 50%;    /* up to half the container on large screens */
  background-color: transparent;
  border: 1px solid #ccc;
  padding: 18px;
  border-radius: 8px;
  margin-bottom: 6px;
}
.user-msg {
  text-align: right;
  font-family: Arial, sans-serif
  margin-left: auto;
}

/* Chat input: fluid width */
.chat-input {
  display: inline-block;
  width: 60%;
  max-width: 800px;
  height: 120px;
  margin: 10px auto;
  border: 1px solid #ddd;
  border-radius: 15px;
  padding: 8px;
}

/* Sidebar */
.sidebar {
  width: 250px;
  background-color: #f8f8f8;
  border-right: 1px solid #ddd;
  padding: 16px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: relative;
}

.close-sidebar-btn {
  display: none;
  position: absolute;
  top: 10px;
  right: 10px;
  background: transparent;
  border: none;
  font-size: 1.5rem;
  color: #333;
  cursor: pointer;
}

/* Cards: responsive */
.card {
  background: #ffffff;
  margin: auto;
  width: 100%;
  max-width: 400px;
  padding: 20px;
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  transition: transform 0.2s ease;
  display: none;
}
.card:hover {
  transform: translateY(-4px);
}

/* Export PDF + remove button container */
.btncontainerDiv {
  display: flex;
  align-items: center;
  gap: 8px;
}

/* --- DARK MODE STYLES --- */
body.dark-mode {
  background-color: #1e1e1e;
  color: #f0f0f0;
}
body.dark-mode .sidebar {
  background-color: #2b2b2b;
  border-right-color: #444;
}

/* Responsive breakpoints */

/* Small tablets and below */
@media (max-width: 768px) {
  .app-container {
    flex-direction: column;
  }
  .sidebar {
    position: fixed;
    top: 0;
    left: -100%;    /* hidden by default */
    width: 100%;
    height: 100%;
    transition: left 0.3s ease;
    z-index: 1000;
  }
  .sidebar.active {
    left: 0;
  }
  .close-sidebar-btn {
    display: block;
  }
  .hamburger-btn {
    display: block;
    position: fixed;
    top: 10px;
    left: 10px;
    z-index: 1001;
    background-color: #007bff;
    border: none;
    color: #fff;
    width: 40px;
    height: 40px;
    border-radius: 50%;
  }
  .chat-header-left {
    margin-left: 60px;
  }
  .chat-area {
    margin-left: 0;
    flex: 1;
  }
  .chat-input {
    width: 90%;
  }
  /* Increase bubble max-width on mobile */
  .user-msg,
  .assistant-msg {
    max-width: 80%;
  }
  /* Card full width on small screens */
  .card {
    max-width: 95%;
  }
}

/* Medium devices (portrait tablets) */
@media (min-width: 577px) and (max-width: 992px) {
  .sidebar {
    position: fixed;
    top: 0;
    left: -50%;
    width: 50%;
    height: 100%;
    transition: left 0.3s ease;
    z-index: 1000;
  }
  .sidebar.active {
    left: 0;
  }
  .programmeCard{
    width: 250px;
  }
}

/* Larger desktops: adjust chat-input */
@media (min-width: 1201px) {
  .chat-input {
    width: 50%;
  }
}

.chat-header-right span {
  font-size: 0.9rem;
  color: #444;
}

body.dark-mode .chat-header-right span {
  color: #ccc;
}

/* full-page white overlay with centered spinner */
#loader {
  position: fixed;
  inset: 0;
  background: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  opacity: 1;
  transition: opacity 0.5s ease;
}

/* hide loader by fading it out */
#loader.hidden {
  opacity: 0;
  pointer-events: none;
}

/* simple CSS spinner */
.spinner {
  width: 60px;
  height: 60px;
  border: 6px solid #f3f3f3;
  border-top: 6px solid #3498db;  /* change to your brand color */
  border-radius: 50%;
  animation: spin 2s linear infinite;
}
@keyframes spin {
  to { transform: rotate(360deg); }
}

/* app container starts invisible, then fades in */
#app {
  opacity: 0.2;
  transition: opacity .5s ease;
}
#app.visible {
  opacity: 1;
}

.chat-input {
  position: sticky;
  bottom: 0;
  width: 100%;
  background: #fff;        /* make sure it sits on top of the chat content */
  padding: 10px 16px;
}
.chat-input .message {
  flex: 1;
}

.chat-content {
  flex: 1;
  overflow-y: auto;
  padding: 16px;
}
html, body, #app, .app-container, .chat-area {
  height: 100%;
}


.assistant-msg {
   font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen,
               Ubuntu, Cantarell, "Open Sans", "Helvetica Neue", sans-serif;
  font-size: 16px;
  line-height: 1.5;
  color: #202123;
  padding: 1em;
  border-radius: 8px;
}

/* Headings */
.assistant-msg h1 {
  font-size: 1.8em;
  font-weight: bold;
  margin-top: 1em;
  margin-bottom: 0.5em;
}

.assistant-msg h2 {
  font-size: 1.5em;
  font-weight: bold;
  margin-top: 1em;
  margin-bottom: 0.5em;
}

.assistant-msg h3 {
  font-size: 1.25em;
  font-weight: bold;
  margin-top: 0.8em;
  margin-bottom: 0.3em;
}

/* Paragraphs */

/* Bold and italic */
.assistant-msg strong {
  font-weight: bold;
}

.assistant-msg em {
  font-style: italic;
}

/* Lists */
.assistant-msg ul,
.assistant-msg ol {
  padding-left: 1.5em;
  margin-bottom: 0.2em;
}

.assistant-msg li {
  margin-bottom: 0.1em;
}

/* Code blocks */
.assistant-msg pre {
  background-color: #202123;
  padding: 1em;
  border-radius: 6px;
  overflow-x: auto;
  font-family: "Courier New", Courier, monospace;
  font-size: 14px;
  color: #dcdcdc;
}

.assistant-msg code {
  background-color: #2f3136;
  padding: 0.2em 0.4em;
  border-radius: 4px;
  font-family: "Courier New", Courier, monospace;
  font-size: 14px;
  color: #f8f8f2;
}

/* Blockquotes */
.assistant-msg blockquote {
  border-left: 4px solid #888;
  padding-left: 1em;
  color: #ccc;
  margin: 1em 0;
  font-style: italic;
}

/* Horizontal Rule */
.assistant-msg hr {
  border: 0;
  border-top: 1px solid #444;
  margin: 2em 0;
}

.assistant-msg table {
  width: 100%;
  border-collapse: collapse;
  margin: 20px 0;
  background-color: #2d2d2d;
  color: #fff;
  font-size: 14px;
}

.assistant-msg th,
.assistant-msg td {
  border: 1px solid #444;
  padding: 10px;
  text-align: left;
}

.assistant-msg th {
  background-color: #444;
  font-weight: 600;
}

/* Container card */
.programme-card {
  background: #f9f9f9;
  border: 1px solid #ddd;
  border-radius: 8px;
  padding: 16px;
  max-width: 400px;
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
  margin: 16px auto;
  font-family: sans-serif;
}

/* Heading */
.programme-card h3 {
  margin-top: 0;
  font-size: 1.25rem;
  color: #333;
}

/* Each checkbox wrapper */
.programme-card > div {
  display: flex;
  align-items: center;
  margin: 8px 0;
}

/* Checkbox itself */
.programme-card input[type="checkbox"] {
  margin-right: 8px;
  width: 1em;
  height: 1em;
  accent-color: #007bff; /* blue accent */
}

/* Label for checkbox */
.programme-card label {
  font-size: 1rem;
  color: #555;
  cursor: pointer;
}

/* Submit button */
.programme-card button {
  display: inline-block;
  margin-top: 12px;
  padding: 8px 16px;
  font-size: 1rem;
  border: none;
  border-radius: 4px;
  background-color: #007bff;
  color: #fff;
  cursor: pointer;
  transition: background-color .2s ease;
}

.programme-card button:hover {
  background-color: #0056b3;
}

#uploadButton:hover,#sendBtn:hover{
  scale:1.2;
}