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

        body {
            font-family: 'Inter', sans-serif;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            min-height: 100vh;
            position: relative;
            overflow-x: hidden;
        }

        /* Animated Background Particles */
        body::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: 
                radial-gradient(circle at 25% 75%, rgba(255, 119, 198, 0.3) 0%, transparent 50%),
                radial-gradient(circle at 75% 25%, rgba(120, 198, 255, 0.3) 0%, transparent 50%),
                radial-gradient(circle at 50% 50%, rgba(120, 255, 198, 0.2) 0%, transparent 50%);
            animation: floatParticles 25s ease-in-out infinite;
        }

        @keyframes floatParticles {
            0%, 100% { transform: translateY(0px) rotate(0deg); }
            33% { transform: translateY(-30px) rotate(120deg); }
            66% { transform: translateY(15px) rotate(240deg); }
        }

        .login-container {
            min-height: 100vh;
            position: relative;
            z-index: 1;
            animation: containerFadeIn 1.2s ease-out;
        }

        @keyframes containerFadeIn {
            from { opacity: 0; transform: scale(0.95); }
            to { opacity: 1; transform: scale(1); }
        }

        .register-card {
            background: rgba(255, 255, 255, 0.95);
            border: none;
            border-radius: 28px;
            backdrop-filter: blur(25px);
            box-shadow: 
                0 30px 60px rgba(0, 0, 0, 0.12),
                0 0 0 1px rgba(255, 255, 255, 0.2),
                inset 0 1px 0 rgba(255, 255, 255, 0.9);
            transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            animation: cardSlideUp 1s ease-out 0.3s both;
            position: relative;
            overflow: hidden;
        }

        .register-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 2px;
            background: linear-gradient(90deg, transparent, #667eea, #764ba2, transparent);
            animation: cardShine 3s ease-in-out infinite;
        }

        @keyframes cardShine {
            0% { left: -100%; }
            100% { left: 100%; }
        }

        @keyframes cardSlideUp {
            from { opacity: 0; transform: translateY(60px) scale(0.9); }
            to { opacity: 1; transform: translateY(0) scale(1); }
        }

        .register-card:hover {
            transform: translateY(-8px);
            box-shadow: 
                0 40px 80px rgba(0, 0, 0, 0.18),
                0 0 0 1px rgba(255, 255, 255, 0.3),
                inset 0 1px 0 rgba(255, 255, 255, 0.9);
        }

        .register-card-body {
            padding: 3.5rem 3rem;
        }

        .register-title {
            color: #1a202c;
            font-weight: 700;
            font-size: 2.2rem;
            margin-bottom: 0.5rem;
            text-align: center;
            position: relative;
            animation: titleSlide 1s ease-out 0.8s both;
        }

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

        .register-title::after {
            content: '';
            position: absolute;
            bottom: -15px;
            left: 50%;
            transform: translateX(-50%);
            width: 0;
            height: 4px;
            background: linear-gradient(135deg, #667eea, #764ba2);
            border-radius: 2px;
            animation: titleUnderline 1.2s ease-out 1.5s both;
        }

        @keyframes titleUnderline {
            to { width: 80px; }
        }

        .register-subtitle {
            color: #718096;
            text-align: center;
            margin-bottom: 2.5rem;
            font-weight: 400;
            font-size: 1.1rem;
            animation: subtitleFade 1s ease-out 1s both;
        }

        @keyframes subtitleFade {
            from { opacity: 0; }
            to { opacity: 1; }
        }

        .form-floating {
            position: relative;
            margin-bottom: 1.8rem;
            animation: inputSlide 0.8s ease-out both;
        }

        .form-floating:nth-child(1) { animation-delay: 1.2s; }
        .form-floating:nth-child(2) { animation-delay: 1.4s; }
        .form-floating:nth-child(3) { animation-delay: 1.6s; }

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

        .form-floating .form-control {
            background: rgba(255, 255, 255, 0.9);
            border: 2px solid transparent;
            border-radius: 18px;
            padding: 1.2rem 1.5rem;
            font-size: 1.05rem;
            color: #2d3748;
            transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            height: auto;
            min-height: 62px;
            position: relative;
        }

        .form-floating .form-control::placeholder {
            color: transparent;
        }

        .form-floating .form-control:focus {
            background: rgba(255, 255, 255, 1);
            border-color: #667eea;
            box-shadow: 
                0 0 0 4px rgba(102, 126, 234, 0.15),
                0 8px 25px rgba(102, 126, 234, 0.1);
            transform: translateY(-3px);
        }

        .form-floating .form-control:valid {
            border-color: #48bb78;
        }

        .form-floating label {
            color: #718096;
            font-weight: 500;
            font-size: 1rem;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            padding-left: 1.5rem;
        }

        .form-floating .form-control:focus ~ label,
        .form-floating .form-control:not(:placeholder-shown) ~ label {
            color: #667eea;
            transform: scale(0.85) translateY(-0.8rem) translateX(0.2rem);
            font-weight: 600;
        }

        .btn-register {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            border: none;
            border-radius: 18px;
            padding: 1.2rem;
            font-size: 1.15rem;
            font-weight: 600;
            color: white;
            transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            position: relative;
            overflow: hidden;
            text-transform: uppercase;
            letter-spacing: 1px;
            animation: buttonSlide 0.8s ease-out 1.8s both;
        }

        @keyframes buttonSlide {
            from { opacity: 0; transform: translateY(30px); }
            to { opacity: 1; transform: translateY(0); }
        }

        .btn-register::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
            transition: left 0.6s ease;
        }

        .btn-register::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, #5a6fd8 0%, #6b4190 100%);
            opacity: 0;
            transition: opacity 0.3s ease;
        }

        .btn-register:hover {
            transform: translateY(-4px) scale(1.02);
            box-shadow: 
                0 20px 40px rgba(102, 126, 234, 0.4),
                0 0 20px rgba(102, 126, 234, 0.2);
        }

        .btn-register:hover::before {
            left: 100%;
        }

        .btn-register:hover::after {
            opacity: 1;
        }

        .btn-register:active {
            transform: translateY(-2px) scale(1.01);
        }

        .btn-register:disabled {
            opacity: 0.7;
            cursor: not-allowed;
            transform: none;
        }

        .btn-register span {
            position: relative;
            z-index: 1;
        }

        .alert {
            border: none;
            border-radius: 14px;
            font-weight: 500;
            padding: 1rem 1.5rem;
            animation: alertBounce 0.6s cubic-bezier(0.68, -0.55, 0.265, 1.55);
        }

        @keyframes alertBounce {
            0% { opacity: 0; transform: scale(0.3) translateY(-20px); }
            50% { transform: scale(1.05) translateY(-5px); }
            100% { opacity: 1; transform: scale(1) translateY(0); }
        }

        .alert-success {
            background: linear-gradient(135deg, #48bb78, #38a169);
            color: white;
            box-shadow: 0 8px 25px rgba(72, 187, 120, 0.3);
        }

        .alert-danger {
            background: linear-gradient(135deg, #f56565, #e53e3e);
            color: white;
            box-shadow: 0 8px 25px rgba(245, 101, 101, 0.3);
        }

        .alert-info {
            background: linear-gradient(135deg, #4299e1, #3182ce);
            color: white;
            box-shadow: 0 8px 25px rgba(66, 153, 225, 0.3);
        }

        .link-login {
            color: #667eea;
            text-decoration: none;
            font-weight: 600;
            transition: all 0.3s ease;
            position: relative;
            display: inline-block;
        }

        .link-login::after {
            content: '';
            position: absolute;
            bottom: -3px;
            left: 0;
            width: 0;
            height: 2px;
            background: linear-gradient(135deg, #667eea, #764ba2);
            transition: width 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        }

        .link-login:hover {
            color: #5a6fd8;
            transform: translateY(-1px);
        }

        .link-login:hover::after {
            width: 100%;
        }

        .login-link-container {
            text-align: center;
            margin-top: 2rem;
            animation: linkFade 0.8s ease-out 2s both;
        }

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

        .spinner-border-sm {
            width: 1.2rem;
            height: 1.2rem;
        }

        .turnstile-container {
            display: flex;
            justify-content: center;
            margin: 2rem 0;
            animation: turnstileFade 0.8s ease-out 1.7s both;
        }

        @keyframes turnstileFade {
            from { opacity: 0; transform: scale(0.9); }
            to { opacity: 1; transform: scale(1); }
        }

        /* Loading Animation */
        .loading-overlay {
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(255, 255, 255, 0.95);
            display: none;
            align-items: center;
            justify-content: center;
            border-radius: 28px;
            z-index: 10;
            backdrop-filter: blur(10px);
        }

        .loading-spinner {
            width: 50px;
            height: 50px;
            border: 5px solid #e2e8f0;
            border-top: 5px solid #667eea;
            border-radius: 50%;
            animation: spinLoader 1s linear infinite;
        }

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

        /* Responsive Design */
        @media (max-width: 768px) {
            .register-card-body {
                padding: 2.5rem 2rem;
            }
            
            .register-title {
                font-size: 1.8rem;
            }
            
            .register-subtitle {
                font-size: 1rem;
            }
            
            .form-floating .form-control {
                min-height: 58px;
                padding: 1rem 1.25rem;
            }
        }

        @media (max-width: 480px) {
            .register-card-body {
                padding: 2rem 1.5rem;
            }
            
            .register-title {
                font-size: 1.6rem;
            }
        }

        /* Focus indicators */
        .form-control:focus {
            outline: none;
        }

        /* Custom scrollbar */
        ::-webkit-scrollbar {
            width: 8px;
        }

        ::-webkit-scrollbar-track {
            background: rgba(255, 255, 255, 0.1);
        }

        ::-webkit-scrollbar-thumb {
            background: linear-gradient(135deg, #667eea, #764ba2);
            border-radius: 4px;
        }

        /* Password strength indicator */
        .password-strength {
            height: 3px;
            background: #e2e8f0;
            border-radius: 2px;
            margin-top: 0.5rem;
            overflow: hidden;
        }

        .password-strength-fill {
            height: 100%;
            width: 0%;
            background: linear-gradient(90deg, #f56565, #ed8936, #48bb78);
            transition: width 0.3s ease;
        }