*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}#root{min-height:100vh;display:flex;flex-direction:column}.loading-spinner-container{display:flex;justify-content:center;align-items:center;min-height:100vh;background:#f9fafb}.loading-spinner{text-align:center}.spinner{border:3px solid #e5e7eb;border-top:3px solid #667eea;border-radius:50%;width:40px;height:40px;animation:spin 1.2s ease-in-out infinite;margin:0 auto 1rem}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.heartbeat{width:40px;height:40px;background:#667eea;border-radius:50%;animation:heartbeat 1.2s ease-in-out infinite}@keyframes heartbeat{0%,to{transform:scale(1);opacity:1}50%{transform:scale(1.3);opacity:.7}}.loading-message{color:#6b7280;font-size:14px;margin:0}.error-boundary{display:flex;justify-content:center;align-items:center;min-height:100vh;background:linear-gradient(135deg,#f5f7fa,#c3cfe2);padding:2rem}.error-container{background:#fff;padding:3rem 2rem;border-radius:12px;box-shadow:0 10px 40px #0000001a;max-width:700px;text-align:center}.error-icon{font-size:64px;margin-bottom:1rem;animation:shake .5s ease-in-out}@keyframes shake{0%,to{transform:translate(0)}25%{transform:translate(-10px)}75%{transform:translate(10px)}}.error-container h1{color:#dc2626;margin-bottom:1rem;font-size:28px;font-weight:700}.error-message{color:#4b5563;margin-bottom:1.5rem;font-size:16px;line-height:1.6}.error-id{background:#fef3c7;border:1px solid #fbbf24;border-radius:6px;padding:1rem;margin:1.5rem 0;font-size:14px;color:#92400e}.error-id strong{color:#78350f}.error-id small{display:block;margin-top:.5rem;color:#a16207;font-size:12px}.error-details{text-align:left;margin:2rem 0;padding:0;background:#f9fafb;border-radius:8px;border:1px solid #e5e7eb;overflow:hidden}.error-details summary{cursor:pointer;font-weight:600;padding:1rem;background:#f3f4f6;border-bottom:1px solid #e5e7eb;color:#374151;user-select:none;transition:background .2s}.error-details summary:hover{background:#e5e7eb}.error-details[open] summary{background:#e5e7eb}.error-details-content{padding:1.5rem}.error-details-content section{margin-bottom:1.5rem}.error-details-content section:last-child{margin-bottom:0}.error-details-content h3{color:#1f2937;font-size:14px;font-weight:600;margin-bottom:.75rem;text-transform:uppercase;letter-spacing:.5px}.error-details-content p{color:#6b7280;font-size:13px;margin-bottom:.5rem;line-height:1.5}.error-details-content strong{color:#374151;font-weight:600}.error-stack,.component-stack{white-space:pre-wrap;word-wrap:break-word;font-size:11px;font-family:Courier New,monospace;color:#dc2626;background:#fef2f2;padding:1rem;border-radius:4px;border:1px solid #fecaca;overflow-x:auto;line-height:1.5;margin:0}.component-stack{color:#ea580c;background:#fff7ed;border-color:#fed7aa}.error-actions{display:flex;gap:1rem;justify-content:center}.btn-primary,.btn-secondary{padding:.75rem 1.5rem;border:none;border-radius:4px;cursor:pointer;font-size:14px;font-weight:500;transition:all .3s ease}.btn-primary{background:#3498db;color:#fff}.btn-primary:hover{background:#2980b9}.btn-secondary{background:#95a5a6;color:#fff}.btn-secondary:hover{background:#7f8c8d}