.register-container {
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(rgba(0,0,0,0.7), rgba(0,0,0,0.7)), 
                        url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1200 800"><rect fill="%238B4513" width="1200" height="800"/><path fill="%23654321" d="M0,400 Q300,350 600,400 T1200,400 V800 H0 Z"/></svg>');
            background-size: cover;
            background-attachment: fixed;
            padding: 20px;
        }

        .register-box {
            background: rgba(26, 20, 16, 0.95);
            padding: 40px;
            border-radius: 15px;
            box-shadow: 0 10px 50px rgba(0,0,0,0.5);
            max-width: 500px;
            width: 100%;
            border: 2px solid var(--accent-gold);
        }

        .register-header {
            text-align: center;
            margin-bottom: 30px;
        }

        .register-header h1 {
            font-family: 'Rye', cursive;
            color: var(--accent-gold);
            font-size: 2.5rem;
            margin-bottom: 10px;
        }

        .register-header p {
            color: var(--cream);
            font-size: 1rem;
        }

        .register-form {
            display: flex;
            flex-direction: column;
            gap: 15px;
        }

        .form-group {
            display: flex;
            flex-direction: column;
            gap: 5px;
        }

        .form-group label {
            color: var(--accent-gold);
            font-size: 0.95rem;
            font-weight: 600;
        }

        .form-group input {
            padding: 12px;
            background: rgba(255,255,255,0.1);
            border: 1px solid rgba(212, 175, 55, 0.3);
            border-radius: 5px;
            color: var(--text-light);
            font-family: 'Crimson Text', serif;
            font-size: 1rem;
            transition: all 0.3s ease;
        }

        .form-group input:focus {
            outline: none;
            border-color: var(--accent-gold);
            background: rgba(255,255,255,0.15);
        }

        .form-group input::placeholder {
            color: rgba(255,255,255,0.4);
        }

        .form-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 15px;
        }

        .btn-register {
            padding: 15px;
            background: var(--accent-gold);
            color: var(--dark-brown);
            border: none;
            border-radius: 5px;
            font-size: 1.1rem;
            font-weight: bold;
            cursor: pointer;
            transition: all 0.3s ease;
            font-family: 'Crimson Text', serif;
            margin-top: 10px;
        }

        .btn-register:hover:not(:disabled) {
            background: var(--secondary-color);
            transform: translateY(-2px);
            box-shadow: 0 5px 20px rgba(212, 175, 55, 0.4);
        }

        .btn-register:disabled {
            opacity: 0.5;
            cursor: not-allowed;
        }

        .register-footer {
            text-align: center;
            margin-top: 20px;
            color: var(--cream);
        }

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

        .register-footer a:hover {
            color: var(--secondary-color);
        }

        .error-message, .success-message {
            padding: 12px;
            border-radius: 5px;
            display: none;
            margin-bottom: 15px;
        }

        .error-message {
            background: rgba(220, 53, 69, 0.2);
            border: 1px solid #dc3545;
            color: #ff6b6b;
        }

        .success-message {
            background: rgba(40, 167, 69, 0.2);
            border: 1px solid #28a745;
            color: #5dffb3;
        }

        .pin-display {
            background: rgba(212, 175, 55, 0.1);
            border: 2px solid var(--accent-gold);
            padding: 20px;
            border-radius: 10px;
            text-align: center;
            margin-top: 15px;
            display: none;
        }

        .pin-display h3 {
            color: var(--accent-gold);
            margin-bottom: 10px;
        }

        .pin-code {
            font-size: 2rem;
            font-weight: bold;
            color: var(--text-light);
            letter-spacing: 5px;
            font-family: monospace;
        }

        .pin-warning {
            color: #ff6b6b;
            margin-top: 10px;
            font-size: 0.9rem;
        }

        .back-link {
            text-align: center;
            margin-top: 15px;
        }

        .back-link a {
            color: var(--cream);
            text-decoration: none;
            font-size: 0.9rem;
            transition: color 0.3s ease;
        }

        .back-link a:hover {
            color: var(--accent-gold);
        }

        @media (max-width: 600px) {
            .form-row {
                grid-template-columns: 1fr;
            }

            .register-box {
                padding: 30px 20px;
            }
        }