:root {
            --primary: #5737c4;
            --secondary: #cc2eb2;
            --accent: #6c5ce7;
            --gradient: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
            --gradient-hover: linear-gradient(135deg, var(--secondary) 0%, var(--primary) 100%);
            --shadow: 0 20px 40px rgba(87, 55, 196, 0.1);
            --shadow-hover: 0 30px 60px rgba(87, 55, 196, 0.15);
            --border-radius: 16px;
            --transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        }

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

        body {
            font-family: 'Inter', 'Segoe UI', system-ui, sans-serif;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            min-height: 100vh;
            color: #2d3748;
            line-height: 1.6;
        }

        /* Main Wrapper */
        .main-wrapper {
            min-height: 100vh;
            display: flex;
            align-items: center;
            padding: 2rem 0;
            margin-top: 80px;
        }

        .container-contact {
            max-width: 800px;
        }

        /* Header Section */
        .header-section {
            text-align: center;
            margin-bottom: 3rem;
        }

        .logo {
            display: inline-flex;
            align-items: center;
            gap: 0.75rem;
            margin-bottom: 1.5rem;
            font-size: 1.75rem;
            font-weight: 700;
            color: white;
        }

        .logo i {
            font-size: 2.25rem;
            background: linear-gradient(135deg, #fff 0%, #e2e8f0 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .main-title {
            font-size: 3rem;
            font-weight: 800;
            margin-bottom: 1rem;
            background: linear-gradient(135deg, #fff 0%, #e2e8f0 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            line-height: 1.2;
        }

        .subtitle {
            font-size: 1.2rem;
            color: rgba(255, 255, 255, 0.9);
            max-width: 600px;
            margin: 0 auto;
        }

        /* Form Wrapper */
        .form-wrapper {
            display: flex;
            justify-content: center;
        }

        /* Form Container */
        .form-container {
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(20px);
            border-radius: var(--border-radius);
            padding: 3rem;
            box-shadow: var(--shadow);
            border: 1px solid rgba(255, 255, 255, 0.2);
            transition: var(--transition);
            width: 100%;
            max-width: 700px;
        }

        .form-container:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-hover);
        }

        /* Form Styles */
        .modern-form {
            display: flex;
            flex-direction: column;
            gap: 1.5rem;
        }

        .form-group {
            position: relative;
            margin-bottom: 1.5rem;
        }

        .form-floating {
            position: relative;
        }

        .form-control {
            border: 2px solid #e2e8f0;
            border-radius: 12px;
            padding: 1.25rem 1rem;
            font-size: 1rem;
            transition: var(--transition);
            background: #fff;
            box-shadow: 0 2px 4px rgba(0, 0, 0, 0.02);
            height: auto;
        }

        .form-control:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(87, 55, 196, 0.1);
            transform: translateY(-2px);
        }

        .form-label {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-weight: 600;
            margin-bottom: 0.5rem;
            color: #4a5568;
        }

        .form-label i {
            color: var(--primary);
            font-size: 1.1rem;
        }

        /* Submit Button */
        .submit-btn {
            background: var(--gradient);
            border: none;
            border-radius: 12px;
            padding: 1.25rem 2rem;
            font-size: 1.1rem;
            font-weight: 600;
            color: white;
            transition: var(--transition);
            margin-top: 1rem;
            position: relative;
            overflow: hidden;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 0.75rem;
            box-shadow: 0 10px 30px rgba(87, 55, 196, 0.3);
            width: 100%;
        }

        .submit-btn:hover {
            background: var(--gradient-hover);
            transform: translateY(-3px);
            box-shadow: 0 20px 40px rgba(87, 55, 196, 0.4);
        }

        .submit-btn:active {
            transform: translateY(-1px);
        }

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

        .btn-loader {
            display: none;
        }

        .submit-btn.loading .btn-text {
            opacity: 0;
        }

        .submit-btn.loading .btn-loader {
            display: block;
        }

        .submit-btn.loading .btn-icon {
            opacity: 0;
        }

        /* Success Toast */
        .toast {
            border-radius: 12px;
            margin-top: 120px !important;
            border: none;
            box-shadow: var(--shadow-hover);
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(20px);
        }

        .toast-header {
            background: var(--gradient);
            color: white;
            border-radius: 12px 12px 0 0;
            border: none;
            padding: 1rem 1.25rem;
        }

        .toast-body {
            padding: 1.25rem;
            color: #4a5568;
        }

        /* Error Messages */
        .error-message {
            color: #e53e3e;
            font-size: 0.875rem;
            margin-top: 0.5rem;
            font-weight: 500;
            display: block;
            min-height: 1.25rem;
        }

        /* Floating Labels */
        .form-floating>.form-control:focus~label,
        .form-floating>.form-control:not(:placeholder-shown)~label {
            color: var(--primary);
            font-weight: 600;
        }

        .form-floating>label {
            padding: 1.25rem 1rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        /* Animation Keyframes */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .form-container {
            animation: fadeInUp 0.6s ease-out;
        }

        /* Loading Animation */
        @keyframes pulse {
            0%, 100% {
                opacity: 1;
            }
            50% {
                opacity: 0.7;
            }
        }

        .submit-btn.loading {
            animation: pulse 1.5s ease-in-out infinite;
        }

        /* Responsive Design */
        @media (max-width: 768px) {
            .main-wrapper {
               margin-top: 120px;
            }
            .container-contact {
                padding: 1rem;
            }
            
            .main-title {
                font-size: 2.3rem;
            }
            
            .subtitle {
                font-size: 1.1rem;
            }
            
            .form-container {
                padding: 2rem 1.5rem;
            }
            
            .logo {
                font-size: 1.5rem;
            }
            
            .logo i {
                font-size: 2rem;
            }
        }

        @media (max-width: 480px) {
            .main-title {
                font-size: 2rem;
            }
            
            .subtitle {
                font-size: 1rem;
            }
            
            .form-container {
                padding: 1.5rem 1rem;
            }
            
            .form-control {
                padding: 1rem 0.875rem;
            }
            
            .submit-btn {
                padding: 1rem 1.5rem;
                font-size: 1rem;
            }
        }

        @media (max-width: 360px) {
            .container-contact {
                padding: 0.5rem;
            }
            
            .form-container {
                padding: 1.25rem 1rem;
            }
            
            .main-title {
                font-size: 1.75rem;
            }
            
            .logo {
                font-size: 1.25rem;
            }
        }

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

        ::-webkit-scrollbar-track {
            background: #f1f1f1;
        }

        ::-webkit-scrollbar-thumb {
            background: var(--primary);
            border-radius: 4px;
        }

        ::-webkit-scrollbar-thumb:hover {
            background: var(--secondary);
        }