:root {
  --core-black: #000000;
  --core-white: #FFFFFF;
  --core-accent: #B0C4DE; /* Platinum/Accent color */
  --core-accent-dark: #7B8A9E;
  --core-card-bg: #1a1a1a;
  --core-accent-glow: rgba(176, 196, 222, 0.45); /* Refined glow */
  --core-line-subtle: rgba(176, 196, 222, 0.08);
  --core-line-active: rgba(176, 196, 222, 0.3);
}
html, body {
  font-family: Arial, sans-serif;
  margin: 0;
  background: var(--core-black);
  color: var(--core-white);
  height: 100%;
  overflow: hidden; 
}
#chat-wrapper {
  display: flex;
  flex-direction: column;
  height: calc(var(--vh, 1vh) * 100);
  background: var(--core-black);
}
#main-content {
  flex: 1;
  overflow-y: auto;
  padding: 20px;
}
#welcome-screen {
  display: flex;
  flex-direction: column; 
  align-items: center;
  justify-content: center;
  text-align: center;
  min-height: calc(var(--vh, 1vh) * 100 - 150px);
}
#welcome-screen h1 {
  font-size: 2.8rem; /* Slightly larger to pop */
  color: var(--core-accent); 
  margin: 20px 0 5px 0;
  font-weight: 700;
  text-shadow: 0 0 10px var(--core-accent-glow); /* Glow for pop */
  letter-spacing: 1px; /* Spacing for modernity */
  animation: titleFadeIn 1.5s ease-out forwards; /* Gentle fade-in */
}
#welcome-screen p {
  font-size: 1.1rem;
  color: var(--core-white); 
  margin: 0 0 20px 0;
  font-weight: 300;
  text-shadow: 0 0 5px var(--core-accent-glow); /* Subtle glow */
  animation: titleFadeIn 1.5s ease-out forwards 0.5s; /* Delayed fade-in */
}
.welcome-animation-container {
  position: relative;
  width: 300px;
  height: 300px;
  perspective: 1500px;
  overflow: hidden;
  transform: scale(0.9); 
}
#chat-container {
  display: none; 
  flex-direction: column;
  gap: 10px;
  width: 100%;
  max-width: 800px; 
  margin: 0 auto; 
  padding-bottom: 20px;
}
#loading-animation {
  position: fixed;
  bottom: 140px; /* Adjusted higher to be above input bar */
  left: 20px;
  z-index: 10;
  display: none; 
  width: 200px; 
  height: 200px;
  transform: scale(0.25); 
  transform-origin: bottom left;
  perspective: 1500px;
  overflow: hidden;
}
/* --- Refined Animation Sub-Elements --- */
.veridian-core-outer{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:220px;height:220px;background:var(--core-card-bg);border:3px solid var(--core-accent);box-shadow:0 0 50px var(--core-accent-glow),inset 0 0 30px var(--core-accent-glow);animation:core-pulseGlow 2s ease-in-out infinite alternate,core-rotate3D 12s linear infinite;clip-path:polygon(50% 0,90% 20%,90% 80%,50% 100%,10% 80%,10% 20%)}
.veridian-core-inner{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:70%;height:70%;background:transparent;border:1px dashed rgba(176,196,222,.4);animation:core-rotateInner 6s linear infinite reverse;clip-path:polygon(50% 0,90% 20%,90% 80%,50% 100%,10% 80%,10% 20%)}
.veridian-core-innermost{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:15px;height:15px;background:var(--core-accent);border-radius:50%;box-shadow:0 0 20px var(--core-white),0 0 30px var(--core-accent);animation:core-pulseCoreDot 1.2s ease-in-out infinite alternate}
.veridian-core-orbiter-path{position:absolute;top:50%;left:50%;width:300px;height:300px;transform:translate(-50%,-50%) rotateX(70deg) rotateY(20deg);border:1px dashed rgba(176,196,222,.1);border-radius:50%;animation:core-rotate3D 18s linear infinite}
.veridian-core-orbiter{position:absolute;width:6px;height:6px;background:var(--core-accent);border-radius:50%;box-shadow:0 0 10px var(--core-white);top:50%;left:50%;margin:-3px;animation:core-orbit 3.5s linear infinite}
.veridian-core-orbiter:nth-child(2){animation-delay:-1s}
.veridian-core-orbiter:nth-child(3){animation-delay:-2s}
.veridian-core-orbiter:nth-child(4){animation-delay:-3s}
.veridian-core-flow-line{position:absolute;top:50%;left:50%;width:120px;height:2px;background:linear-gradient(to right,transparent,var(--core-line-active),transparent);transform-origin:left center;animation:core-radialFlow 3.5s ease-in-out infinite;opacity:0}
.veridian-core-grid-line{position:absolute;background:var(--core-line-subtle);height:1px;opacity:0;animation:core-gridFadeAndMove 10s ease-in-out infinite;z-index:0;width:150%}
@keyframes core-pulseGlow{from{box-shadow:0 0 20px var(--core-accent-glow),inset 0 0 10px var(--core-accent-glow)}to{box-shadow:0 0 60px var(--core-accent),inset 0 0 40px var(--core-accent)}}
@keyframes core-rotate3D{from{transform:translate(-50%,-50%) rotateY(0deg) rotateX(10deg)}to{transform:translate(-50%,-50%) rotateY(360deg) rotateX(10deg)}}
@keyframes core-rotateInner{from{transform:translate(-50%,-50%) rotate(0deg)}to{transform:translate(-50%,-50%) rotate(-360deg)}}
@keyframes core-pulseCoreDot{from{opacity:.7;transform:translate(-50%,-50%) scale(.8)}to{opacity:1;transform:translate(-50%,-50%) scale(1.2)}}
@keyframes core-orbit{from{transform:rotate(0deg) translateX(150px) rotate(0deg)}to{transform:rotate(360deg) translateX(150px) rotate(-360deg)}}
@keyframes core-radialFlow{0%{transform:scaleX(.1) rotate(var(--rotation-deg,0deg));opacity:0}20%{transform:scaleX(1.5) rotate(var(--rotation-deg,0deg));opacity:1}80%{transform:scaleX(.2) rotate(var(--rotation-deg,0deg));opacity:.5}100%{transform:scaleX(.1) rotate(var(--rotation-deg,0deg));opacity:0}}
@keyframes core-gridFadeAndMove{0%{transform:translateX(-100%) rotate(var(--line-rotate,0deg));opacity:0}25%{opacity:.2}50%{transform:translateX(100%) rotate(var(--line-rotate,0deg));opacity:.1}75%{opacity:.2}100%{transform:translateX(-100%) rotate(var(--line-rotate,0deg));opacity:0}}
/* --- Message Bubbles --- */
.message {
  margin: 5px 0;
  padding: 12px;
  border-radius: 8px;
  line-height: 1.5;
  max-width: 90%; 
  word-wrap: break-word;
}
.user {
  text-align: right;
  color: var(--core-accent);
  background: rgba(176, 196, 222, 0.1);
  align-self: flex-end; 
}
.assistant { 
  text-align: left;
  color: var(--core-white);
  background: var(--core-card-bg); 
  align-self: flex-start; 
}
/* --- UPDATED Input Form Styling --- */
#chat-form-container {
  width: 100%;
  padding: 10px 0;
  background: var(--core-black);
  border-top: 1px solid var(--core-accent-dark);
  flex-shrink: 0;
  position: fixed;
  bottom: 0;
  left: 0;
  z-index: 5;
  transition: position 0.3s ease, opacity 0.3s ease; /* Smooth shift */
}
#chat-form-container.welcome-state {
  position: absolute;
  top: calc(50% + 200px); /* Positioned below animation/title on desktop */
  bottom: auto;
  transform: translateY(0);
  padding: 0;
  background: transparent;
  border-top: none;
  opacity: 1;
}
#chat-form {
  display: flex;
  align-items: flex-end; 
  background: var(--core-card-bg);
  border: 1px solid var(--core-accent-dark);
  border-radius: 8px;
  padding: 8px;
  max-width: 800px; 
  margin: 0 auto; 
  box-shadow: 0 0 15px var(--core-accent-glow); /* Subtle glow for interactivity */
  transition: box-shadow 0.3s ease; /* Smooth transition */
}
#chat-form:focus-within, #chat-form:hover {
  box-shadow: 0 0 25px var(--core-accent-glow); /* Pulsing glow on interaction */
  animation: chatGlowPulse 1.5s ease-in-out infinite alternate; /* Faint pulse */
}
textarea#user-input {
  flex: 1;
  background: transparent;
  color: var(--core-white);
  border: none;
  font-size: 1rem;
  font-family: Arial, sans-serif;
  line-height: 1.5;
  resize: none;
  overflow-y: hidden; 
  max-height: 200px; 
  padding: 8px;
}
textarea#user-input:focus {
  outline: none;
}
button[type="submit"] {
  background: var(--core-accent);
  color: var(--core-black);
  border: 1px solid var(--core-accent);
  border-radius: 5px;
  cursor: pointer;
  font-size: 1rem;
  font-weight: bold;
  padding: 8px 16px;
  margin-left: 8px;
  height: 40px; 
}
button[type="submit"]:hover {
  background: var(--core-white);
  border-color: var(--core-white);
}
/* --- MARKDOWN AND CODE STYLES --- */
.code-block-wrapper {
  position: relative;
  background: #0D0D0D; 
  border-radius: 8px;
  margin: 10px 0;
}
.copy-code-btn {
  position: absolute;
  top: 8px;
  right: 8px;
  background: #333;
  color: var(--core-white);
  border: 1px solid var(--core-accent-dark);
  border-radius: 4px;
  padding: 4px 8px;
  font-size: 0.8rem;
  cursor: pointer;
  opacity: 0.7;
  z-index: 1;
}
.code-block-wrapper:hover .copy-code-btn {
  opacity: 1;
}
.message.assistant pre {
  padding: 16px;
  padding-top: 40px; 
  overflow-x: auto;
  color: #f8f8f2; 
  background: transparent;
  border-radius: 8px;
  margin: 0;
}
.message.assistant code {
  font-family: 'Courier New', Courier, monospace;
  font-size: 0.9rem;
  background: none;
  padding: 0;
}
/* --- THIS SECTION IS UPDATED --- */
.message.assistant code:not([class*="language-"]) {
  background: none; /* No more ugly highlight */
  padding: 0;
  font-family: Arial, sans-serif; /* Use same font */
  font-size: 1em; /* Use same font size */
  color: var(--core-accent-dark); /* Muted color */
}
.message.assistant p,
.message.assistant li {
  margin: 16px 0 0 0;
  line-height: 1.6;
  font-weight: bold; /* Make all body text bold */
}
.message.assistant p:first-child,
.message.assistant li:first-child {
  margin-top: 0;
}
/* --- END UPDATED SECTION --- */
.message.assistant h1,
.message.assistant h2,
.message.assistant h3 {
  color: var(--core-accent);
  margin: 24px 0 10px 0;
  padding-bottom: 4px;
  border-bottom: 1px solid var(--core-accent-dark);
}
.message.assistant h1 { font-size: 1.8rem; }
.message.assistant h2 { font-size: 1.5rem; }
.message.assistant h3 { font-size: 1.2rem; }
.message.assistant ul {
  margin: 16px 0;
  padding-left: 25px;
}
.message.assistant li {
  margin-bottom: 8px;
}
/* --- STYLE FOR LINKS --- */
.message.assistant a {
  color: var(--core-accent); /* Use your platinum color */
  text-decoration: underline;
  font-weight: normal; /* Make links NOT bold to stand out */
}
.message.assistant a:hover {
  color: var(--core-white); /* Brighter on hover */
}
/* --- END NEW STYLE --- */
@keyframes titleFadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes chatGlowPulse {
  from { box-shadow: 0 0 15px var(--core-accent-glow); }
  to { box-shadow: 0 0 25px var(--core-accent-glow); }
}
@media (max-width: 768px) {
  #main-content {
    padding: 10px;
  }
  #chat-form-container {
    padding: 10px 0;
  }
  #chat-form-container.welcome-state {
    top: calc(50% + 150px); /* Adjusted for mobile animation size */
  }
  #loading-animation {
    bottom: 110px; /* Adjusted for mobile input height */
  }
  .welcome-animation-container {
    transform: scale(0.7);
  }
  #loading-animation {
    left: 5px;
  }
}
/* --- New: Chart Container Styling --- */
.chart-container {
  margin: 10px 0;
  padding: 10px;
  background: var(--core-card-bg);
  border-radius: 8px;
  box-shadow: 0 0 10px var(--core-accent-glow);
  max-height: 300px; /* Limit height for chat flow */
}
/* --- New: Data Table Styling --- */
.message.assistant table {
  width: 100%;
  border-collapse: collapse;
  margin: 10px 0;
  border: 1px solid var(--core-accent-dark);
  box-shadow: 0 0 10px var(--core-accent-glow);
}
.message.assistant th, .message.assistant td {
  padding: 8px;
  border: 1px solid var(--core-accent-dark);
  text-align: left;
}
.message.assistant th {
  background: var(--core-card-bg);
  color: var(--core-accent);
}
.message.assistant tr:nth-child(even) {
  background: rgba(176, 196, 222, 0.1);
}
.message.assistant table:hover {
  box-shadow: 0 0 15px var(--core-accent-glow);
}
/* --- New: Progress Bar Styling --- */
.progress-container {
  margin: 10px 0;
  padding: 10px;
  background: var(--core-card-bg);
  border-radius: 8px;
  box-shadow: 0 0 10px var(--core-accent-glow);
}
.progress-bar {
  height: 20px;
  background: linear-gradient(to right, var(--core-accent), var(--core-accent-dark));
  border-radius: 10px;
  transition: width 0.3s ease;
}
.progress-container span {
  display: block;
  margin-top: 5px;
  color: var(--core-white);
  font-size: 0.9rem;
}