*{margin:0;padding:0;box-sizing:border-box}body{font-family:system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;min-height:100vh;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}h1{font-size:3.2em;line-height:1.1}.auth-container{position:fixed;top:0;left:0;width:100vw;height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#667eea,#764ba2);padding:20px;overflow:hidden;z-index:1000}.auth-container:before{content:"";position:absolute;width:200%;height:200%;background:radial-gradient(circle,rgba(255,255,255,.1) 1px,transparent 1px);background-size:50px 50px;animation:backgroundMove 20s linear infinite}@keyframes backgroundMove{0%{transform:translate(0)}to{transform:translate(50px,50px)}}.auth-card{background:#fffffff2;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-radius:12px;padding:32px 40px;width:100%;max-width:400px;box-shadow:0 8px 32px #00000026;position:relative;z-index:1;animation:slideIn .5s ease-out}@keyframes slideIn{0%{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}.auth-card h2{margin:0 0 8px;font-size:28px;font-weight:600;background:linear-gradient(135deg,#667eea,#764ba2);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.auth-card p{margin:0 0 24px;color:#666;font-size:14px}.auth-form{display:flex;flex-direction:column;gap:16px}.form-group{display:flex;flex-direction:column;gap:6px}.form-group label{font-size:13px;font-weight:500;color:#555}.form-group input{padding:12px 14px;border:1px solid #e0e0e0;border-radius:8px;font-size:15px;transition:all .3s ease;background:#fff}.form-group input:focus{outline:none;border-color:#667eea;box-shadow:0 0 0 2px #667eea1a}.auth-button{padding:12px 24px;border:none;border-radius:8px;font-size:15px;font-weight:500;cursor:pointer;transition:all .3s ease;position:relative;overflow:hidden;width:100%}.auth-button:before{content:"";position:absolute;top:50%;left:50%;width:0;height:0;border-radius:50%;background:#ffffff4d;transform:translate(-50%,-50%);transition:width .6s,height .6s}.auth-button:hover:before{width:300px;height:300px}.auth-button:disabled{opacity:.6;cursor:not-allowed}.btn-primary{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff}.btn-primary:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 10px 25px #667eea66}.btn-google{background:#fff;color:#333;border:2px solid #e0e0e0;display:flex;align-items:center;justify-content:center;gap:10px}.btn-google:hover:not(:disabled){background:#f8f9fa;border-color:#667eea;transform:translateY(-2px);box-shadow:0 10px 25px #0000001a}.divider{display:flex;align-items:center;gap:12px;margin:8px 0}.divider:before,.divider:after{content:"";flex:1;height:1px;background:#e0e0e0}.divider span{color:#999;font-size:14px}.auth-link{text-align:center;margin-top:16px;font-size:13px;color:#666}.auth-link a{color:#667eea;text-decoration:none;font-weight:600;transition:color .3s ease}.auth-link a:hover{color:#764ba2;text-decoration:underline}.error-message{background:#ffebee;color:#c62828;padding:12px 16px;border-radius:8px;font-size:14px;border-left:4px solid #c62828;animation:shake .5s ease}@keyframes shake{0%,to{transform:translate(0)}25%{transform:translate(-10px)}75%{transform:translate(10px)}}.success-message{background:#e8f5e9;color:#2e7d32;padding:12px 16px;border-radius:8px;font-size:14px;border-left:4px solid #2e7d32;animation:slideIn .5s ease}.user-profile{background:#fffffff2;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-radius:20px;padding:30px;box-shadow:0 10px 40px #0000001a;text-align:center;animation:slideIn .5s ease}.user-avatar{width:100px;height:100px;border-radius:50%;margin:0 auto 20px;border:4px solid #667eea;object-fit:cover;box-shadow:0 5px 20px #667eea4d}.user-avatar-placeholder{width:100px;height:100px;border-radius:50%;margin:0 auto 20px;background:linear-gradient(135deg,#667eea,#764ba2);display:flex;align-items:center;justify-content:center;font-size:40px;font-weight:700;color:#fff;box-shadow:0 5px 20px #667eea4d}.user-name{font-size:24px;font-weight:700;margin:0 0 5px;color:#333}.user-email{font-size:14px;color:#666;margin:0 0 25px}.loading-spinner{display:inline-block;width:20px;height:20px;border:3px solid rgba(255,255,255,.3);border-radius:50%;border-top-color:#fff;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}@media(max-width:768px){.auth-card{padding:28px 32px;max-width:90%}.auth-card h2{font-size:24px}}@media(max-width:480px){.auth-card{padding:24px 28px}.auth-card h2{font-size:22px}}.app-container{min-height:100vh;padding:40px;max-width:1200px;margin:0 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summary{cursor:pointer;color:#666;font-size:.9em}.error-details pre{margin-top:12px;font-size:.85em;color:#d32f2f;white-space:pre-wrap;word-break:break-word}.retry-button{background:#1976d2;color:#fff;border:none;padding:12px 32px;border-radius:8px;font-size:1em;cursor:pointer;transition:background .2s}.retry-button:hover{background:#1565c0}