* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: 'Segoe UI', 'Arial', sans-serif;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            min-height: 100vh;
            color: #333;
            overflow-x: hidden;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 20px;
        }

        /* Enhanced Background Animation */
        body::before {
            content: '';
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: 
                radial-gradient(circle at 20% 80%, rgba(120, 119, 198, 0.3) 0%, transparent 50%),
                radial-gradient(circle at 80% 20%, rgba(255, 119, 198, 0.3) 0%, transparent 50%),
                radial-gradient(circle at 40% 40%, rgba(120, 219, 226, 0.2) 0%, transparent 50%);
            z-index: -1;
            animation: backgroundFloat 20s ease-in-out infinite;
        }

        @keyframes backgroundFloat {
            0%, 100% { transform: translateY(0px) rotate(0deg); }
            33% { transform: translateY(-20px) rotate(1deg); }
            66% { transform: translateY(10px) rotate(-1deg); }
        }

        /* Floating particles */
        .particle {
            position: absolute;
            background: rgba(255, 255, 255, 0.1);
            border-radius: 50%;
            pointer-events: none;
            animation: float 15s infinite linear;
        }

        @keyframes float {
            0% {
                transform: translateY(100vh) rotate(0deg);
                opacity: 0;
            }
            10% {
                opacity: 1;
            }
            90% {
                opacity: 1;
            }
            100% {
                transform: translateY(-100vh) rotate(360deg);
                opacity: 0;
            }
        }

        /* Registration Container */
        .registration-container {
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(15px);
            border-radius: 25px;
            padding: 40px;
            max-width: 500px;
            width: 100%;
            box-shadow: 0 20px 60px rgba(0,0,0,0.2);
            border: 1px solid rgba(255, 255, 255, 0.2);
            position: relative;
            overflow: hidden;
            animation: slideInUp 0.8s ease-out;
        }

        .registration-container::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.1), transparent);
            transform: rotate(45deg);
            animation: shimmer 3s ease-in-out infinite;
        }

        @keyframes shimmer {
            0% { transform: translateX(-100%) translateY(-100%) rotate(45deg); }
            50% { transform: translateX(100%) translateY(100%) rotate(45deg); }
            100% { transform: translateX(200%) translateY(200%) rotate(45deg); }
        }

        @keyframes slideInUp {
            from {
                opacity: 0;
                transform: translateY(50px) scale(0.9);
            }
            to {
                opacity: 1;
                transform: translateY(0) scale(1);
            }
        }

        /* Header */
        .auth-header {
            text-align: center;
            margin-bottom: 35px;
            position: relative;
            z-index: 1;
        }

        .auth-header h1 {
            color: #2c3e50;
            font-size: 2.5rem;
            margin-bottom: 10px;
            background: linear-gradient(45deg, #667eea, #764ba2);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            animation: titleGlow 2s ease-in-out infinite alternate;
        }

        @keyframes titleGlow {
            0% { filter: brightness(1); }
            100% { filter: brightness(1.2); }
        }

        .auth-header p {
            color: #6c757d;
            font-size: 1.1rem;
            animation: fadeInUp 0.6s ease-out 0.3s both;
        }

        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        /* Form Styles */
        .auth-form {
            position: relative;
            z-index: 1;
        }

        .form-group {
            margin-bottom: 25px;
            animation: slideInLeft 0.6s ease-out both;
        }

        .form-group:nth-child(1) { animation-delay: 0.1s; }
        .form-group:nth-child(2) { animation-delay: 0.2s; }
        .form-group:nth-child(3) { animation-delay: 0.3s; }
        .form-group:nth-child(4) { animation-delay: 0.4s; }
        .form-group:nth-child(5) { animation-delay: 0.5s; }

        @keyframes slideInLeft {
            from {
                opacity: 0;
                transform: translateX(-30px);
            }
            to {
                opacity: 1;
                transform: translateX(0);
            }
        }

        .form-group label {
            display: block;
            margin-bottom: 8px;
            color: #2c3e50;
            font-weight: 600;
            font-size: 0.95rem;
        }

        .form-input {
            width: 100%;
            padding: 15px;
            border: 2px solid #e9ecef;
            border-radius: 12px;
            font-size: 1rem;
            transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
            background: rgba(248, 249, 250, 0.8);
        }

        .form-input:focus {
            outline: none;
            border-color: #4CAF50;
            box-shadow: 0 0 0 3px rgba(76, 175, 80, 0.2);
            transform: translateY(-2px);
            background: white;
        }

        .form-input.error {
            border-color: #e74c3c;
            box-shadow: 0 0 0 3px rgba(231, 76, 60, 0.2);
            animation: shake 0.5s ease-in-out;
        }

        @keyframes shake {
            0%, 100% { transform: translateX(0); }
            25% { transform: translateX(-5px); }
            75% { transform: translateX(5px); }
        }

        .error-message {
            color: #e74c3c;
            font-size: 0.85rem;
            margin-top: 5px;
            display: none;
            animation: fadeInUp 0.3s ease-out;
        }

        .error-message.show {
            display: block;
        }

        /* Password Strength Indicator */
        .password-strength {
            margin-top: 8px;
            height: 4px;
            background: #e9ecef;
            border-radius: 2px;
            overflow: hidden;
            transition: all 0.3s ease;
        }

        .password-strength-bar {
            height: 100%;
            transition: all 0.3s ease;
            border-radius: 2px;
        }

        .strength-weak { 
            background: #e74c3c; 
            width: 25%;
        }
        .strength-fair { 
            background: #f39c12; 
            width: 50%;
        }
        .strength-good { 
            background: #3498db; 
            width: 75%;
        }
        .strength-strong { 
            background: #27ae60; 
            width: 100%;
        }

        .password-strength-text {
            font-size: 0.8rem;
            margin-top: 5px;
            font-weight: 500;
        }

        /* Social Login Section */
        .social-login {
            margin: 30px 0;
            position: relative;
            z-index: 1;
            animation: fadeInUp 0.6s ease-out 0.6s both;
        }

        .social-divider {
            text-align: center;
            margin: 25px 0;
            position: relative;
        }

        .social-divider::before {
            content: '';
            position: absolute;
            top: 50%;
            left: 0;
            right: 0;
            height: 1px;
            background: #dee2e6;
        }

        .social-divider span {
            background: rgba(255, 255, 255, 0.95);
            padding: 0 20px;
            color: #6c757d;
            font-size: 0.9rem;
        }

        .login-with-google-btn {
            width: 100%;
            background: white;
            color: #333;
            border: 2px solid #ddd;
            padding: 15px;
            border-radius: 12px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 12px;
            position: relative;
            overflow: hidden;
        }

        .google-btn::before {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            width: 0;
            height: 0;
            background: rgba(66, 133, 244, 0.1);
            border-radius: 50%;
            transform: translate(-50%, -50%);
            transition: all 0.3s ease;
        }

        .google-btn:hover::before {
            width: 300px;
            height: 300px;
        }

        .google-btn:hover {
            border-color: #4285f4;
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(66, 133, 244, 0.2);
        }

        .google-icon {
            width: 20px;
            height: 20px;
            background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path fill="%234285f4" d="M22.56 12.25c0-.78-.07-1.53-.2-2.25H12v4.26h5.92c-.26 1.37-1.04 2.53-2.21 3.31v2.77h3.57c2.08-1.92 3.28-4.74 3.28-8.09z"/><path fill="%2334a853" d="M12 23c2.97 0 5.46-.98 7.28-2.66l-3.57-2.77c-.98.66-2.23 1.06-3.71 1.06-2.86 0-5.29-1.93-6.16-4.53H2.18v2.84C3.99 20.53 7.7 23 12 23z"/><path fill="%23fbbc05" d="M5.84 14.09c-.22-.66-.35-1.36-.35-2.09s.13-1.43.35-2.09V7.07H2.18C1.43 8.55 1 10.22 1 12s.43 3.45 1.18 4.93l2.85-2.22.81-.62z"/><path fill="%23ea4335" d="M12 5.38c1.62 0 3.06.56 4.21 1.64l3.15-3.15C17.45 2.09 14.97 1 12 1 7.7 1 3.99 3.47 2.18 7.07l3.66 2.84c.87-2.6 3.3-4.53 6.16-4.53z"/></svg>') no-repeat center;
            background-size: contain;
        }

        /* Submit Button */
        .submit-btn {
            width: 100%;
            background: linear-gradient(135deg, #4CAF50, #45a049);
            color: white;
            border: none;
            padding: 18px;
            border-radius: 12px;
            font-size: 1.1rem;
            font-weight: bold;
            cursor: pointer;
            transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
            position: relative;
            overflow: hidden;
            animation: fadeInUp 0.6s ease-out 0.7s both;
        }

        .submit-btn::before {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            width: 0;
            height: 0;
            background: rgba(255, 255, 255, 0.3);
            border-radius: 50%;
            transform: translate(-50%, -50%);
            transition: all 0.4s ease;
        }

        .submit-btn:hover:not(:disabled)::before {
            width: 300px;
            height: 300px;
        }

        .submit-btn:hover:not(:disabled) {
            background: linear-gradient(135deg, #45a049, #4CAF50);
            transform: translateY(-3px);
            box-shadow: 0 10px 30px rgba(76, 175, 80, 0.4);
        }

        .submit-btn:disabled {
            background: #ccc;
            cursor: not-allowed;
            opacity: 0.7;
        }

        /* Loading Animation */
        .loading {
            display: none;
            width: 20px;
            height: 20px;
            border: 2px solid #f3f3f3;
            border-top: 2px solid #4CAF50;
            border-radius: 50%;
            animation: spin 1s linear infinite;
            margin-left: 10px;
        }

        @keyframes spin {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }

        /* Login Link */
        .auth-switch {
            text-align: center;
            margin-top: 30px;
            position: relative;
            z-index: 1;
            animation: fadeInUp 0.6s ease-out 0.8s both;
        }

        .auth-switch p {
            color: #6c757d;
            margin-bottom: 15px;
        }

        .auth-switch a {
            color: #4CAF50;
            text-decoration: none;
            font-weight: 600;
            transition: all 0.3s ease;
            padding: 10px 25px;
            border: 2px solid #4CAF50;
            border-radius: 25px;
            display: inline-block;
        }

        .auth-switch a:hover {
            background: #4CAF50;
            color: white;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(76, 175, 80, 0.3);
        }

        /* Success/Error Messages */
        .message {
            padding: 15px;
            border-radius: 12px;
            margin-bottom: 25px;
            animation: slideInDown 0.5s ease-out;
            position: relative;
            z-index: 1;
        }

        @keyframes slideInDown {
            from {
                opacity: 0;
                transform: translateY(-20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .message.success {
            background: linear-gradient(135deg, #d4edda, #c3e6cb);
            color: #155724;
            border: 2px solid #28a745;
        }

        .message.error {
            background: linear-gradient(135deg, #f8d7da, #f5c6cb);
            color: #721c24;
            border: 2px solid #dc3545;
        }

        /* Responsive Design */
        @media (max-width: 768px) {
            .registration-container {
                padding: 30px 25px;
                margin: 10px;
            }

            .auth-header h1 {
                font-size: 2.2rem;
            }

            .form-input {
                padding: 12px;
            }

            .submit-btn, .google-btn {
                padding: 15px;
            }
        }

        @media (max-width: 480px) {
            .registration-container {
                padding: 25px 20px;
            }

            .auth-header h1 {
                font-size: 2rem;
            }

            .form-group {
                margin-bottom: 20px;
            }
        }

        /* Form validation states */
        .form-input.valid {
            border-color: #28a745;
            background: rgba(212, 237, 218, 0.1);
        }

        .form-input.valid:focus {
            box-shadow: 0 0 0 3px rgba(40, 167, 69, 0.2);
        }

        /* Phone number formatting */
        .phone-input {
            position: relative;
        }

        .phone-input::before {
            content: '+233';
            position: absolute;
            left: 15px;
            top: 50%;
            transform: translateY(-50%);
            color: #6c757d;
            font-weight: 500;
            pointer-events: none;
        }

        .phone-input input {
            padding-left: 65px;
        }