:root{font-family:Inter,system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color-scheme:light dark;color:#ffffffde;background:linear-gradient(135deg,#1a1a2e,#16213e,#0f3460);font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}*{margin:0;padding:0;box-sizing:border-box}html,body,#root{height:100%;width:100%}.app{min-height:100vh;display:flex;flex-direction:column;align-items:center;padding:2rem}.header{text-align:center;margin-bottom:2rem}.header h1{font-size:2.5rem;margin-bottom:.5rem;background:linear-gradient(90deg,#00d4ff,#7c3aed);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.header p{color:#fff9;font-size:1rem}.main{flex:1;display:flex;justify-content:center;align-items:flex-start;width:100%;max-width:800px}.footer{margin-top:2rem;text-align:center;color:#fff6;font-size:.875rem}.chat-container{width:100%;height:600px;border-radius:16px;overflow:hidden;box-shadow:0 25px 50px -12px #00000080;background:#ffffff0d;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid rgba(255,255,255,.1)}.chat-loading{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100%;gap:1rem}.chat-loading .spinner{width:40px;height:40px;border:3px solid rgba(255,255,255,.1);border-top-color:#00d4ff;border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.chat-error{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100%;gap:1rem;color:#ff6b6b;text-align:center;padding:2rem}.chat-error button{padding:.75rem 1.5rem;border:none;border-radius:8px;background:linear-gradient(90deg,#00d4ff,#7c3aed);color:#fff;font-weight:600;cursor:pointer;transition:transform .2s,box-shadow .2s}.chat-error button:hover{transform:translateY(-2px);box-shadow:0 10px 20px -10px #7c3aed80}@media(max-width:768px){.app{padding:1rem}.header h1{font-size:1.75rem}.chat-container{height:calc(100vh - 200px);min-height:400px}}