*{margin:0;padding:0;box-sizing:border-box}:root{--primary-color: #6366f1;--primary-dark: #4f46e5;--primary-light: #818cf8;--secondary-color: #10b981;--error-color: #ef4444;--warning-color: #f59e0b;--text-dark: #1f2937;--text-light: #6b7280;--bg-light: #f9fafb;--bg-white: #ffffff;--border-color: #e5e7eb;--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .05);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .1);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .1);--transition: all .3s cubic-bezier(.4, 0, .2, 1)}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;background:linear-gradient(135deg,#f5f7fa,#c3cfe2);min-height:100vh;color:var(--text-dark)}#root{display:flex;align-items:center;justify-content:center;min-height:100vh;padding:20px}.container{width:100%;max-width:480px;background:var(--bg-white);border-radius:12px;box-shadow:var(--shadow-lg);padding:40px;animation:slideUp .5s ease-out}@keyframes slideUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.form-group{margin-bottom:24px}.form-group label{display:block;margin-bottom:8px;font-weight:500;color:var(--text-dark);font-size:14px}input[type=text],input[type=email],input[type=password]{width:100%;padding:12px 14px;border:1px solid var(--border-color);border-radius:8px;font-size:14px;color:var(--text-dark);transition:var(--transition);background-color:var(--bg-white)}input[type=text]:focus,input[type=email]:focus,input[type=password]:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 3px #6366f11a}input[type=text]::placeholder,input[type=email]::placeholder,input[type=password]::placeholder{color:var(--text-light)}.btn{width:100%;padding:12px 16px;border:none;border-radius:8px;font-size:15px;font-weight:600;cursor:pointer;transition:var(--transition);display:flex;align-items:center;justify-content:center;gap:8px;text-decoration:none;text-align:center}.btn-primary{background:linear-gradient(135deg,var(--primary-color) 0%,var(--primary-dark) 100%);color:#fff}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 12px #6366f14d}.btn-primary:active{transform:translateY(0)}.btn-secondary{background:transparent;color:var(--primary-color);border:2px solid var(--primary-color)}.btn-secondary:hover{background:var(--primary-color);color:#fff}.btn-logout{background:linear-gradient(135deg,var(--error-color) 0%,#dc2626 100%);color:#fff;width:auto;padding:10px 20px;margin-top:20px}.btn-logout:hover{transform:translateY(-2px);box-shadow:0 8px 12px #ef44444d}.btn:disabled{opacity:.6;cursor:not-allowed;transform:none}h1{font-size:32px;font-weight:700;margin-bottom:8px;color:var(--text-dark)}h2{font-size:28px;font-weight:700;margin-bottom:16px;color:var(--text-dark);background:linear-gradient(135deg,var(--primary-color) 0%,var(--primary-dark) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}p{font-size:14px;color:var(--text-light);line-height:1.6}a{color:var(--primary-color);text-decoration:none;font-weight:500;transition:var(--transition)}a:hover{color:var(--primary-dark);text-decoration:underline}.error-message{background-color:#fee2e2;color:var(--error-color);padding:12px 14px;border-radius:8px;margin-bottom:20px;border-left:4px solid var(--error-color);font-size:14px;animation:slideDown .3s ease-out}@keyframes slideDown{0%{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}.auth-link{margin-top:24px;padding-top:20px;border-top:1px solid var(--border-color);text-align:center;font-size:14px}.auth-link p{margin:0}.auth-link a{color:var(--primary-color);font-weight:600}.app-container{max-width:800px;margin:0 auto;background:var(--bg-white);border-radius:12px;box-shadow:var(--shadow-lg);padding:40px;animation:slideUp .5s ease-out}.app-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:32px;padding-bottom:20px;border-bottom:2px solid var(--border-color)}.app-header h2{margin:0}.user-info{background:var(--bg-light);border-radius:8px;padding:24px;margin:20px 0;border:1px solid var(--border-color)}.user-info pre{background:var(--text-dark);color:#4ade80;padding:16px;border-radius:6px;overflow-x:auto;font-size:12px;line-height:1.5;font-family:Monaco,Menlo,Ubuntu Mono,monospace}.loading{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:200px;gap:16px}.spinner{width:40px;height:40px;border:4px solid var(--border-color);border-top:4px solid var(--primary-color);border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.loading-text{color:var(--text-light);font-size:14px}@media(max-width:640px){.container,.app-container{padding:24px}h1{font-size:24px}h2{font-size:22px}.app-header{flex-direction:column;gap:16px;align-items:flex-start}}