:root{font-family:SF Pro Display,PingFang SC,Segoe UI,system-ui,sans-serif;background-color:#f4f4f5;color:#111827;line-height:1.5}*{box-sizing:border-box}body,#root{margin:0;min-height:100vh}.app-shell{min-height:100vh;display:grid;grid-template-rows:auto 1fr}.app-header{padding:48px 24px 0;background:linear-gradient(120deg,#111827,#312e81);color:#f9fafb}.eyebrow{text-transform:uppercase;font-size:12px;letter-spacing:.2em;margin:0 0 8px;color:#a5b4fc}.app-header h1{margin:0 0 8px;font-size:clamp(32px,5vw,48px)}.subhead{margin:0;color:#e0e7ff}.app-main{padding:24px}.chat-window{margin:0 auto;max-width:960px;background:#fff;border-radius:24px;padding:24px;box-shadow:0 10px 40px #0f172a14,0 2px 10px #0f172a14;display:flex;flex-direction:column;gap:16px;min-height:70vh}.chat-meta{display:flex;justify-content:space-between;gap:16px;align-items:center}.chat-meta h2{margin:0 0 4px}.chat-meta p{margin:0;color:#6b7280}.status-dot{font-size:14px;padding:6px 12px;border-radius:999px;color:#fff}.status-idle{background-color:#10b981}.status-busy{background-color:#f97316}.chat-log{flex:1;overflow-y:auto;padding:0 4px 8px;display:flex;flex-direction:column;gap:12px}.bubble{max-width:70%;padding:12px 16px;border-radius:18px;position:relative;display:inline-flex;flex-direction:column;gap:6px}.bubble-user{align-self:flex-end;background:#312e81;color:#f8fafc}.bubble-assistant{align-self:flex-start;background:#f3f4f6}.bubble span{font-size:12px;opacity:.65}.empty-state,.loading-state{border:1px dashed #cbd5f5;border-radius:16px;padding:32px;text-align:center;color:#6b7280}.composer{border-top:1px solid #e5e7eb;padding-top:12px;display:flex;flex-direction:column;gap:8px}.composer textarea{width:100%;border:1px solid #cbd5f5;border-radius:16px;padding:12px 16px;resize:none;font-size:16px;font-family:inherit}.composer textarea:disabled{background-color:#f5f3ff}.composer-actions{display:flex;justify-content:flex-end}.composer button{background-color:#312e81;border:none;border-radius:999px;color:#fff;padding:10px 24px;font-size:15px;cursor:pointer}.composer button:disabled{opacity:.55;cursor:not-allowed}.composer-error,.error-banner{margin:0;color:#dc2626;font-size:14px}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);border:0}@media (max-width: 768px){.chat-window{padding:16px}.bubble{max-width:100%}}