.auth-container{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#667eea,#764ba2);padding:20px}.auth-card{background:#fff;border-radius:16px;box-shadow:0 20px 60px #0000004d;padding:40px;width:100%;max-width:440px;animation:slideUp .4s ease-out}@keyframes slideUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.auth-header{text-align:center;margin-bottom:32px}.auth-header h1{font-size:28px;font-weight:700;color:#1a202c;margin:0 0 8px}.auth-header p{font-size:14px;color:#718096;margin:0}.auth-error{background:#fed7d7;color:#c53030;padding:12px 16px;border-radius:8px;margin-bottom:20px;font-size:14px;border-left:4px solid #c53030}.auth-form{margin-bottom:24px}.form-group{margin-bottom:20px}.form-group label{display:block;font-size:14px;font-weight:600;color:#2d3748;margin-bottom:8px}.form-group input{width:100%;padding:12px 16px;border:2px solid #e2e8f0;border-radius:8px;font-size:15px;transition:all .2s;box-sizing:border-box;color:#1a202c;background:#fff}.form-group input::placeholder{color:#a0aec0}.form-group input:focus{outline:none;border-color:#667eea;box-shadow:0 0 0 3px #667eea1a}.form-group input:disabled{background:#f7fafc;cursor:not-allowed}.password-strength{margin-top:8px;display:flex;align-items:center;gap:12px}.strength-bar{flex:1;height:4px;background:#e2e8f0;border-radius:2px;position:relative;overflow:hidden}.strength-bar:after{content:"";position:absolute;left:0;top:0;height:100%;transition:all .3s}.password-strength.weak .strength-bar:after{width:33%;background:#fc8181}.password-strength.medium .strength-bar:after{width:66%;background:#f6ad55}.password-strength.strong .strength-bar:after{width:100%;background:#48bb78}.strength-text{font-size:12px;font-weight:600;min-width:40px}.password-strength.weak .strength-text{color:#fc8181}.password-strength.medium .strength-text{color:#f6ad55}.password-strength.strong .strength-text{color:#48bb78}.auth-button{width:100%;padding:14px 24px;border:none;border-radius:8px;font-size:16px;font-weight:600;cursor:pointer;transition:all .2s}.auth-button.primary{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff}.auth-button.primary:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 8px 20px #667eea66}.auth-button:disabled{opacity:.6;cursor:not-allowed}.auth-divider{text-align:center;margin:24px 0;position:relative}.auth-divider:before{content:"";position:absolute;left:0;top:50%;width:100%;height:1px;background:#e2e8f0}.auth-divider span{position:relative;background:#fff;padding:0 16px;font-size:13px;color:#718096}.oauth-buttons{display:flex;flex-direction:column;gap:12px}.oauth-button{display:flex;align-items:center;justify-content:center;gap:12px;padding:12px 24px;border:2px solid #e2e8f0;border-radius:8px;background:#fff;font-size:15px;font-weight:600;cursor:pointer;transition:all .2s}.oauth-button:hover:not(:disabled){border-color:#cbd5e0;background:#f7fafc;transform:translateY(-1px)}.oauth-button:disabled{opacity:.6;cursor:not-allowed}.oauth-button.google{color:#4285f4}.oauth-button.facebook{color:#1877f2}.oauth-button.twitter{color:#1da1f2}.auth-footer{text-align:center;margin-top:24px;padding-top:24px;border-top:1px solid #e2e8f0}.auth-footer p{font-size:14px;color:#718096;margin:0}.auth-footer a{color:#667eea;text-decoration:none;font-weight:600}.auth-footer a:hover{text-decoration:underline}@media(max-width:480px){.auth-card{padding:24px}.auth-header h1{font-size:24px}}