/* Modern dark theme with vibrant colors
   - user: purple/pink gradient, right-aligned
   - assistant: cyan/blue gradient, left-aligned
*/

:root {
  --radius: 16px;
  --bubble-shadow: 0 6px 18px rgba(0, 0, 0, .25);
  --bg-dark: #1a1b26;
  --bg-darker: #16171f;
}

.chat-surface[data-bs-theme="light"] {
  background: var(--bg-dark);
  border: 1px solid rgba(255,255,255,.1);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
  color: #e2e8f0; /* Light text color for better visibility */
}

/* Card header and footer text */
.chat-surface .card-header,
.chat-surface .card-footer {
  color: #e2e8f0;
}

/* Tips text color */
.chat-surface .form-text {
  color: #94a3b8 !important; /* Light gray, important to override Bootstrap */
}

/* Code snippets in tips */
.chat-surface .form-text code {
  color: #60a5fa; /* Light blue for code elements */
  background: rgba(59, 130, 246, 0.1);
  padding: 2px 4px;
  border-radius: 4px;
}

.chat-scroll {
  min-height: 44vh;
  max-height: 62vh;
  overflow: auto;
  background: var(--bg-darker);
  padding: .75rem .5rem;
  border-top: 1px solid rgba(255,255,255,.05);
}

/* Base message row */
.message {
  margin: 1.2rem 0;
  display: flex;
  align-items: flex-end;
  gap: .75rem;
  position: relative;
}

.message .avatar {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  flex: 0 0 40px;
  font-size: 20px;
  color: #fff;
  box-shadow: var(--bubble-shadow);
  transition: transform 0.2s ease;
}

.message .avatar:hover {
  transform: scale(1.05);
}

/* Message label */
.message::before {
  position: absolute;
  top: -1.2rem;
  font-size: 0.8rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Bubble base */
.message .bubble {
  max-width: min(860px, 88%);
  padding: 1rem 1.2rem;
  border-radius: var(--radius);
  border: 1px solid rgba(255,255,255,.1);
  box-shadow: var(--bubble-shadow);
  line-height: 1.5;
  word-wrap: break-word;
  transition: transform 0.2s ease;
}

.message .bubble:hover {
  transform: translateY(-2px);
}

/* Assistant (LEFT) */
.message.assistant { justify-content: flex-start; }
.message.assistant::before {
  left: 52px;
  color: #64dfdf;
  content: "Assistant";
}
.message.assistant .avatar {
  background: linear-gradient(135deg, #06b6d4, #3b82f6);
}
.message.assistant .bubble {
  background: linear-gradient(135deg, rgba(6, 182, 212, 0.1), rgba(59, 130, 246, 0.1));
  color: #e2e8f0;
  border-top-left-radius: 6px;
  border: 1px solid rgba(6, 182, 212, 0.2);
}

/* User (RIGHT) */
.message.user { justify-content: flex-end; }
.message.user::before {
  right: 52px;
  color: #c084fc;
  content: "You";
}
.message.user .avatar {
  background: linear-gradient(135deg, #8b5cf6, #d946ef);
}
.message.user .bubble {
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.1), rgba(217, 70, 239, 0.1));
  color: #e2e8f0;
  border-top-right-radius: 6px;
  border: 1px solid rgba(139, 92, 246, 0.2);
}

/* Hidden roles (kept for completeness if you ever show them) */
.message.system .bubble {
  background: rgba(255, 243, 205, 0.1);
  border-color: rgba(255, 230, 156, 0.2);
  color: #ffd700;
  font-style: italic;
}

.message.tool .bubble {
  background: rgba(248, 249, 250, 0.05);
  border-color: rgba(233, 236, 239, 0.1);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  white-space: pre-wrap;
  color: #a8b3cf;
}

/* Code output card */
#codeCard { 
  margin-bottom: 1rem;
  background: var(--bg-darker);
  border: 1px solid rgba(255,255,255,.1);
}

#codeCard pre {
  margin: 0;
  padding: 1rem;
  background: #0b1220;
  color: #d6e7ff;
  border-radius: 0;
}

/* Inputs */
textarea#userInput { 
  resize: none;
  background: var(--bg-darker);
  color: #ffffff;
  border-color: rgba(255,255,255,.2);
  font-size: 1rem;
  padding: 0.75rem;
}

/* Input group styling */
.input-group-text {
  background: var(--bg-darker) !important;
  border-color: rgba(255,255,255,.2) !important;
  color: #94a3b8 !important;
}

textarea#userInput:focus {
  background: var(--bg-darker);
  color: #ffffff;
  border-color: rgba(139, 92, 246, 0.5);
  box-shadow: 0 0 0 0.2rem rgba(139, 92, 246, 0.25);
}

/* Placeholder color */
textarea#userInput::placeholder {
  color: #94a3b8;
  opacity: 0.8;
}

/* Small screens */
@media (max-width: 576px) {
  .message .bubble { max-width: 84%; }
}