:root{--wcd-purple-50:#faf5ff;--wcd-purple-100:#f3e8ff;--wcd-purple-200:#e9d5ff;--wcd-purple-300:#d8b4fe;--wcd-purple-500:#8b5cf6;--wcd-purple-600:#7c3aed;--wcd-purple-700:#6d28d9;--wcd-purple-800:#5b21b6;--wcd-purple-900:#4c1d95;--wcd-indigo-500:#6366f1;--wcd-gray-50:#f9fafb;--wcd-gray-100:#f3f4f6;--wcd-gray-200:#e5e7eb;--wcd-gray-300:#d1d5db;--wcd-gray-400:#9ca3af;--wcd-gray-600:#4b5563;--wcd-gray-700:#374151;--wcd-gray-800:#1f2937;--wcd-gray-900:#111827;--wcd-header-gradient:linear-gradient(135deg,var(--wcd-purple-600) 0%,var(--wcd-indigo-500) 50%,var(--wcd-purple-500) 100%);--wcd-body-gradient:linear-gradient(180deg,#ffffff 0%,var(--wcd-purple-50) 100%);--wcd-shadow:-16px 0 32px rgba(124,58,237,0.18),-2px 0 8px rgba(124,58,237,0.10);--wcd-backdrop:rgba(15,23,42,0.45);--wcd-width-standard:520px;--wcd-width-wide:560px;--wcd-width-tablet:460px;--wcd-z-backdrop:1400;--wcd-z-drawer:1401}.whit-chat-backdrop{position:fixed;inset:0;background:var(--wcd-backdrop);backdrop-filter:blur(2px);-webkit-backdrop-filter:blur(2px);z-index:var(--wcd-z-backdrop);opacity:0;visibility:hidden;transition:opacity 0.25s ease,visibility 0.25s ease}.whit-chat-backdrop.is-open{opacity:1;visibility:visible}.whit-chat-drawer{position:fixed;top:0;right:0;bottom:0;width:var(--wcd-width-standard);max-width:100vw;background:var(--wcd-body-gradient);box-shadow:var(--wcd-shadow);z-index:var(--wcd-z-drawer);transform:translateX(100%);transition:transform 0.35s cubic-bezier(0.4,0,0.2,1);display:flex;flex-direction:column;overflow:hidden}.whit-chat-drawer[data-size="wide"]{width:var(--wcd-width-wide)}.whit-chat-backdrop.is-open .whit-chat-drawer{transform:translateX(0)}@media (max-width:1024px){.whit-chat-drawer{width:var(--wcd-width-tablet)}.whit-chat-drawer[data-size="wide"]{width:var(--wcd-width-tablet)}}@media (max-width:640px){.whit-chat-drawer,.whit-chat-drawer[data-size="wide"]{width:100vw}}.whit-chat-header{padding:1rem 1.1rem 0.85rem;background:var(--wcd-header-gradient);color:#fff;position:relative;border-bottom:1px solid rgba(124,58,237,0.18)}.whit-chat-kicker{font-size:0.7rem;font-weight:600;letter-spacing:0.08em;text-transform:uppercase;color:rgba(255,255,255,0.78);margin:0 0 0.2rem 0}.whit-chat-title{font-family:'Playfair Display',Georgia,serif;font-size:1.15rem;font-weight:700;margin:0;line-height:1.2;color:#fff}.whit-chat-subtitle{margin:0.25rem 0 0 0;font-size:0.78rem;color:rgba(255,255,255,0.92);line-height:1.35}.whit-chat-close{position:absolute;top:0.85rem;right:0.9rem;width:32px;height:32px;border-radius:50%;background:rgba(255,255,255,0.2);border:none;color:#fff;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;font-size:1rem;line-height:1;transition:background 0.15s ease,transform 0.15s ease}.whit-chat-close:hover{background:rgba(255,255,255,0.32);transform:scale(1.05)}.whit-chat-close:focus-visible{outline:2px solid #fff;outline-offset:2px}.whit-chat-messages{flex:1 1 auto;overflow-y:auto;padding:1rem 1.1rem;display:flex;flex-direction:column;gap:0.75rem;scroll-behavior:smooth}.whit-chat-msg{display:flex;max-width:100%}.whit-chat-msg[data-role="user"]{justify-content:flex-end}.whit-chat-msg[data-role="assistant"],.whit-chat-msg[data-role="system"]{justify-content:flex-start}.whit-chat-bubble{max-width:85%;padding:0.7rem 0.85rem;border-radius:14px;font-size:0.9rem;line-height:1.5;box-shadow:0 1px 2px rgba(15,23,42,0.04);word-wrap:break-word;overflow-wrap:anywhere}.whit-chat-msg[data-role="user"] .whit-chat-bubble{background:var(--wcd-purple-600);color:#fff;border-bottom-right-radius:4px}.whit-chat-msg[data-role="assistant"] .whit-chat-bubble{background:#fff;border:1px solid var(--wcd-purple-200);color:var(--wcd-gray-800);border-bottom-left-radius:4px}.whit-chat-msg[data-role="system"] .whit-chat-bubble{background:var(--wcd-gray-100);color:var(--wcd-gray-700);border:1px solid var(--wcd-gray-200);font-style:italic;font-size:0.82rem}.whit-chat-msg[data-role="error"] .whit-chat-bubble{background:#fef2f2;color:#991b1b;border:1px solid #fecaca;font-size:0.82rem}.whit-chat-sender{display:block;font-size:0.72rem;font-weight:600;color:var(--wcd-purple-700);margin-bottom:0.25rem;letter-spacing:0.01em}.whit-chat-bubble .streaming-content{white-space:normal;line-height:inherit}.whit-chat-bubble .streaming-content p{display:block;margin:0 0 0.4rem 0}.whit-chat-bubble .streaming-content p:last-child{margin-bottom:0}.whit-chat-bubble>*:first-child{margin-top:0}.whit-chat-bubble>*:last-child{margin-bottom:0}.whit-chat-bubble p{margin:0 0 0.4rem 0}.whit-chat-bubble p:last-child{margin-bottom:0}.whit-chat-bubble p:empty{display:none}.whit-chat-bubble h1,.whit-chat-bubble h2,.whit-chat-bubble h3,.whit-chat-bubble h4{font-family:'Playfair Display',Georgia,serif;font-weight:700;color:var(--wcd-purple-900);margin:0.55rem 0 0.25rem 0;line-height:1.25}.whit-chat-bubble h1{font-size:1.05rem}.whit-chat-bubble h2{font-size:0.98rem}.whit-chat-bubble h3,.whit-chat-bubble h4{font-size:0.92rem}.whit-chat-bubble h1 + p,.whit-chat-bubble h2 + p,.whit-chat-bubble h3 + p,.whit-chat-bubble h4 + p,.whit-chat-bubble h1 + ul,.whit-chat-bubble h2 + ul,.whit-chat-bubble h3 + ul,.whit-chat-bubble h4 + ul,.whit-chat-bubble h1 + ol,.whit-chat-bubble h2 + ol,.whit-chat-bubble h3 + ol,.whit-chat-bubble h4 + ol,.whit-chat-bubble h1 + blockquote,.whit-chat-bubble h2 + blockquote,.whit-chat-bubble h3 + blockquote,.whit-chat-bubble h4 + blockquote{margin-top:0.15rem}.whit-chat-bubble ul,.whit-chat-bubble ol{margin:0.2rem 0 0.4rem 1.15rem;padding:0}.whit-chat-bubble li{margin-bottom:0.1rem}.whit-chat-bubble li>p{display:inline;margin:0}.whit-chat-bubble li>p + ul,.whit-chat-bubble li>p + ol{display:block;margin-top:0.2rem}.whit-chat-bubble li + li{margin-top:0.1rem}.whit-chat-bubble blockquote{margin:0.3rem 0 0.4rem 0;padding:0.15rem 0 0.15rem 0.7rem;border-left:3px solid var(--wcd-purple-200);color:var(--wcd-gray-700)}.whit-chat-bubble blockquote>*:first-child{margin-top:0}.whit-chat-bubble blockquote>*:last-child{margin-bottom:0}.whit-chat-bubble hr{border:0;border-top:1px solid var(--wcd-purple-200);margin:0.5rem 0}.whit-chat-bubble strong{color:var(--wcd-purple-900);font-weight:700}.whit-chat-bubble code{background:var(--wcd-purple-50);color:var(--wcd-purple-800);padding:0.1rem 0.35rem;border-radius:4px;font-size:0.85em;font-family:'SF Mono',Menlo,Consolas,monospace}.whit-chat-bubble pre{background:var(--wcd-gray-900);color:var(--wcd-gray-100);padding:0.75rem;border-radius:8px;overflow-x:auto;margin:0.5rem 0;font-size:0.82rem}.whit-chat-bubble pre code{background:transparent;color:inherit;padding:0}.whit-chat-bubble table{width:100%;border-collapse:collapse;font-size:0.82rem;margin:0.5rem 0}.whit-chat-bubble th,.whit-chat-bubble td{border:1px solid var(--wcd-purple-200);padding:0.4rem 0.55rem;text-align:left}.whit-chat-bubble th{background:var(--wcd-purple-50);font-weight:600;color:var(--wcd-purple-900)}.whit-chat-bubble a{color:var(--wcd-purple-700);text-decoration:underline}.whit-chat-bubble .student-alias.real-name-display{color:var(--wcd-purple-700);font-weight:600}.whit-chat-bubble .student-alias{font-family:'SF Mono',Menlo,Consolas,monospace;font-size:0.85em;color:var(--wcd-gray-600)}.whit-chat-bubble.is-streaming::after{content:'';display:inline-block;width:2px;height:1em;background:var(--wcd-purple-600);vertical-align:text-bottom;margin-left:2px;animation:whit-chat-caret 1s steps(2) infinite}@keyframes whit-chat-caret{to{opacity:0}}.whit-chat-typing{display:none;align-items:center;gap:0.45rem;padding:0.4rem 0.85rem;color:var(--wcd-purple-700);font-size:0.78rem}.whit-chat-typing.is-visible{display:inline-flex}.whit-chat-typing-dots{display:inline-flex;gap:3px}.whit-chat-typing-dots span{width:5px;height:5px;border-radius:50%;background:var(--wcd-purple-500);animation:whit-chat-bounce 1.2s infinite ease-in-out}.whit-chat-typing-dots span:nth-child(2){animation-delay:0.15s}.whit-chat-typing-dots span:nth-child(3){animation-delay:0.3s}@keyframes whit-chat-bounce{0%,80%,100%{transform:scale(0.6);opacity:0.5}40%{transform:scale(1);opacity:1}}.whit-chat-chips{display:flex;flex-direction:column;gap:0.55rem;padding:0.4rem 0 0.2rem 0;transition:opacity 0.25s ease}.whit-chat-chips.is-dismissing{opacity:0;pointer-events:none}.whit-chat-chips-label{font-size:0.72rem;font-weight:600;color:var(--wcd-gray-400);text-transform:uppercase;letter-spacing:0.06em;margin:0}.whit-chat-chips-row{display:flex;flex-wrap:wrap;gap:0.45rem}.whit-chat-chip{display:inline-flex;align-items:center;gap:0.45rem;padding:0.45rem 0.8rem;border-radius:999px;background:#fff;border:1px solid var(--wcd-purple-200);color:var(--wcd-purple-700);font-size:0.82rem;font-weight:500;cursor:pointer;box-shadow:0 1px 2px rgba(124,58,237,0.08);transition:background 0.15s ease,border-color 0.15s ease,color 0.15s ease,transform 0.1s ease}.whit-chat-chip:hover{background:var(--wcd-purple-50);border-color:var(--wcd-purple-300);color:var(--wcd-purple-800)}.whit-chat-chip:active{transform:scale(0.97)}.whit-chat-chip-icon{font-size:0.9rem;color:var(--wcd-purple-600)}.whit-chat-scroll-latest{position:absolute;bottom:5.5rem;left:50%;transform:translateX(-50%);background:var(--wcd-purple-600);color:#fff;border:none;border-radius:999px;padding:0.4rem 0.85rem;font-size:0.78rem;cursor:pointer;box-shadow:0 4px 12px rgba(124,58,237,0.35);display:none;align-items:center;gap:0.35rem;z-index:2}.whit-chat-scroll-latest.is-visible{display:inline-flex}.whit-chat-footer{border-top:1px solid var(--wcd-purple-200);background:#fff;padding:0.7rem 0.85rem 0.85rem;position:relative}.whit-chat-input-row{display:flex;align-items:flex-end;gap:0.5rem}.whit-chat-prompts-btn{flex:0 0 auto;width:38px;height:38px;border-radius:10px;border:1px solid var(--wcd-purple-200);background:#fff;color:var(--wcd-purple-600);cursor:pointer;display:inline-flex;align-items:center;justify-content:center;font-size:0.95rem;transition:background 0.15s ease,border-color 0.15s ease}.whit-chat-prompts-btn:hover{background:var(--wcd-purple-50);border-color:var(--wcd-purple-300)}.whit-chat-prompts-btn[hidden]{display:none}.whit-chat-textarea{flex:1 1 auto;min-height:38px;max-height:160px;padding:0.5rem 0.7rem;border:1px solid var(--wcd-purple-200);border-radius:10px;font:inherit;font-size:0.9rem;line-height:1.4;color:var(--wcd-gray-800);background:#fff;resize:none;overflow-y:auto;outline:none;transition:border-color 0.15s ease,box-shadow 0.15s ease;font-family:inherit}.whit-chat-textarea:focus{border-color:var(--wcd-purple-600);box-shadow:0 0 0 3px rgba(124,58,237,0.16)}.whit-chat-textarea::placeholder{color:var(--wcd-gray-400)}.whit-chat-send{flex:0 0 auto;height:38px;padding:0 0.95rem;border-radius:10px;background:var(--wcd-purple-600);color:#fff;border:none;font-size:0.85rem;font-weight:600;cursor:pointer;display:inline-flex;align-items:center;gap:0.35rem;transition:background 0.15s ease,transform 0.1s ease}.whit-chat-send:hover:not(:disabled){background:var(--wcd-purple-700)}.whit-chat-send:active:not(:disabled){transform:scale(0.97)}.whit-chat-send:disabled{opacity:0.5;cursor:not-allowed}.whit-chat-footer-hint{font-size:0.7rem;color:var(--wcd-gray-400);margin:0.4rem 0 0 0;text-align:right}.whit-chat-demo-notice{margin:0.5rem 1.1rem;padding:0.6rem 0.75rem;border-radius:10px;background:var(--wcd-purple-50);border:1px dashed var(--wcd-purple-300);color:var(--wcd-purple-800);font-size:0.8rem;line-height:1.4}.whit-chat-drawer[data-enabled="false"] .whit-chat-textarea,.whit-chat-drawer[data-enabled="false"] .whit-chat-send,.whit-chat-drawer[data-enabled="false"] .whit-chat-prompts-btn{opacity:0.5;pointer-events:none}