.signup-box {
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    padding: 24px;
    margin: 32px 0;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.signup-box h4 {
    margin: 0 0 16px 0;
    color: #1a202c;
    font-size: 1.25rem;
    font-weight: 600;
}

.signup-box p {
    margin: 0 0 20px 0;
    color: #4a5568;
    font-size: 1rem;
    line-height: 1.5;
}

.signup-form {
    display: flex;
    gap: 12px;
    margin-bottom: 12px;
}

.signup-form input[type="email"] {
    flex: 1;
    padding: 8px 16px;
    border: 1px solid #cbd5e0;
    border-radius: 6px;
    font-size: 1rem;
    outline: none;
    transition: border-color 0.2s;
}

.signup-form input[type="email"]:focus {
    border-color: #4299e1;
    box-shadow: 0 0 0 3px rgba(66, 153, 225, 0.1);
}

.signup-form button {
    padding: 8px 24px;
    background-color: #4299e1;
    color: white;
    border: none;
    border-radius: 6px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.2s;
}

.signup-form button:hover {
    background-color: #3182ce;
}

.signup-form button:disabled {
    background-color: #a0aec0;
    cursor: not-allowed;
}

.signup-message {
    margin: 8px 0 0 0;
    font-size: 0.875rem;
}

.signup-message.success {
    color: #48bb78;
}

.signup-message.error {
    color: #e53e3e;
}

/* Animation for success/error messages */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}

.signup-message {
    animation: fadeIn 0.3s ease-out;
}