:root {
            --primary-green: #1B4D3E;
            --secondary-green: #2A7C5F;
            --accent-green: #4A9B8E;
            --dark-gray: #2C3E50;
            --light-gray: #ECF0F1;
            --off-white: #FAFAFA;
            --text-dark: #2C3E50;
            --text-light: #7F8C8D;
            --shadow-light: rgba(27, 77, 62, 0.1);
            --shadow-medium: rgba(27, 77, 62, 0.2);
        }

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

        body {
            font-family: 'Inter', sans-serif;
            line-height: 1.6;
            color: var(--text-dark);
            background-color: var(--off-white);
            overflow-x: hidden;
        }

        /* Navigation */
        .navbar {
            background: linear-gradient(135deg, var(--primary-green), var(--secondary-green));
            padding: 1rem 0;
            box-shadow: 0 4px 20px var(--shadow-light);
            position: fixed;
            width: 100%;
            top: 0;
            z-index: 1000;
            transition: all 0.3s ease;
        }

        .navbar-brand {
            font-weight: 700;
            font-size: 1.5rem;
            color: var(--off-white) !important;
            text-decoration: none;
        }

        .navbar-nav .nav-link {
            color: var(--off-white) !important;
            font-weight: 500;
            margin: 0 0.5rem;
            transition: all 0.3s ease;
        }

        .navbar-nav .nav-link:hover {
            color: var(--accent-green) !important;
        }

        .btn-client {
            background: var(--accent-green);
            border: none;
            padding: 0.5rem 1.5rem;
            border-radius: 25px;
            font-weight: 600;
            transition: all 0.3s ease;
        }

        .btn-client:hover {
            background: var(--secondary-green);
            transform: translateY(-2px);
            box-shadow: 0 8px 25px var(--shadow-medium);
        }

        /* Register Hero */
        .register-hero {
            background: linear-gradient(135deg, var(--primary-green), var(--secondary-green), var(--accent-green));
            color: var(--off-white);
            padding: 150px 0 50px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .register-hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1000 1000"><polygon fill="rgba(255,255,255,0.05)" points="0,1000 1000,800 1000,1000"/></svg>');
            background-size: cover;
        }

        .register-hero h1 {
            font-size: 2.5rem;
            font-weight: 700;
            margin-bottom: 1rem;
        }

        .register-hero p {
            font-size: 1.1rem;
            opacity: 0.9;
            max-width: 600px;
            margin: 0 auto 2rem;
        }

        /* Progress Steps */
        .progress-steps {
            display: flex;
            justify-content: center;
            margin: 2rem auto;
            max-width: 800px;
            position: relative;
        }

        .progress-steps::before {
            content: '';
            position: absolute;
            top: 15px;
            left: 0;
            right: 0;
            height: 3px;
            background: rgba(255,255,255,0.3);
            z-index: 1;
        }

        .step {
            display: flex;
            flex-direction: column;
            align-items: center;
            position: relative;
            z-index: 2;
            padding: 0 2rem;
        }

        .step-number {
            width: 30px;
            height: 30px;
            border-radius: 50%;
            background: rgba(255,255,255,0.3);
            color: white;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            margin-bottom: 0.5rem;
            transition: all 0.3s ease;
        }

        .step.active .step-number {
            background: var(--accent-green);
            transform: scale(1.1);
        }

        .step-label {
            font-size: 0.9rem;
            color: rgba(255,255,255,0.8);
            transition: all 0.3s ease;
        }

        .step.active .step-label {
            color: white;
            font-weight: 500;
        }

        /* Register Form */
        .register-form-container {
            background: white;
            border-radius: 20px;
            box-shadow: 0 20px 50px var(--shadow-light);
            padding: 3rem;
            max-width: 500px;
            margin: -50px auto 5rem;
            position: relative;
            z-index: 10;
            border: 1px solid rgba(27, 77, 62, 0.1);
            transform: translateY(0);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }

        .register-form-container:hover {
            transform: translateY(-5px);
            box-shadow: 0 25px 60px var(--shadow-medium);
        }

        .register-form-container h2 {
            color: var(--primary-green);
            font-weight: 600;
            margin-bottom: 2rem;
            text-align: center;
        }

        .form-floating label {
            color: var(--text-light);
        }

        .form-floating .form-control {
            height: 60px;
            border-radius: 10px;
            border: 1px solid rgba(27, 77, 62, 0.2);
            padding-top: 1.5rem;
            transition: all 0.3s ease;
        }

        .form-floating .form-control:focus {
            border-color: var(--accent-green);
            box-shadow: 0 0 0 0.25rem rgba(42, 124, 95, 0.25);
        }

        .form-floating > .form-control:focus~label,
        .form-floating > .form-control:not(:placeholder-shown)~label {
            color: var(--accent-green);
            opacity: 1;
            transform: scale(0.85) translateY(-1rem) translateX(0.5rem);
        }

        .form-text {
            color: var(--text-light);
            font-size: 0.85rem;
        }

        .btn-register {
            background: linear-gradient(135deg, var(--secondary-green), var(--primary-green));
            color: white;
            border: none;
            padding: 1rem;
            border-radius: 10px;
            font-weight: 600;
            font-size: 1.1rem;
            width: 100%;
            margin-top: 1rem;
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
        }

        .btn-register:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 30px var(--shadow-medium);
        }

        .btn-register:active {
            transform: translateY(0);
        }

        /* Alert */
        .alert-danger {
            background: rgba(220, 53, 69, 0.1);
            border-color: rgba(220, 53, 69, 0.3);
            color: #dc3545;
        }

        /* Footer */
        .register-footer {
            background: var(--dark-gray);
            color: var(--off-white);
            padding: 2rem 0;
            text-align: center;
        }

        .register-footer a {
            color: var(--accent-green);
            text-decoration: none;
            transition: all 0.3s ease;
        }

        .register-footer a:hover {
            color: white;
            text-decoration: underline;
        }

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

        .fade-in {
            animation: fadeInUp 0.6s ease-out forwards;
        }

        /* Responsive */
        @media (max-width: 768px) {
            .register-hero {
                padding: 120px 0 30px;
            }
            
            .register-hero h1 {
                font-size: 2rem;
            }
            
            .register-form-container {
                padding: 2rem;
                margin: -30px auto 3rem;
            }
            
            .progress-steps {
                flex-wrap: wrap;
            }
            
            .step {
                padding: 0 1rem;
                margin-bottom: 1rem;
            }
        }