.datasheet-modal {
    display: none;
    position: fixed;
    z-index: 9999;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.6);
    animation: fadeIn 0.3s;
}

.datasheet-modal-content {
    background-color: #fff;
    margin: 5% auto;
    padding: 30px;
    border-radius: 8px;
    max-width: 500px;
    max-height: 90vh;
    width: 90%;
    position: relative;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    animation: slideIn 0.3s;
    overflow-y: auto;
}

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

@keyframes slideIn {
    from {
        transform: translateY(-50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.datasheet-modal-close {
    color: #aaa;
    float: right;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    line-height: 1;
}

.datasheet-modal-close:hover,
.datasheet-modal-close:focus {
    color: #000;
}

.datasheet-modal-content h2 {
    margin-top: 0;
    margin-bottom: 10px;
    color: #333;
}

.datasheet-modal-content p {
    color: #666;
    margin-bottom: 20px;
}

/* Modal header & logo */
.modal-header {
    text-align: center;
    margin-bottom: 25px;
}

.modal-logo {
    max-width: 285px;
    height: auto;
    display: block;
    margin: 0 auto 15px auto;
}

/* Form layout */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: #333;
    font-size: 14px;
}

.form-row {
    display: flex;
    gap: 15px;
    margin-bottom: 0;
}

.form-group.half {
    flex: 1;
}

/* All input fields unified */
.form-group input[type="email"],
.form-group input[type="text"],
.form-group input[type="tel"] {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 16px;
    box-sizing: border-box;
    font-family: inherit;
}

.form-group input[type="email"]:focus,
.form-group input[type="text"]:focus,
.form-group input[type="tel"]:focus {
    outline: none;
    border-color: #298543;
}

/* Checkbox */
.checkbox-group {
    display: flex;
    align-items: flex-start;
    gap: 10px;
}

.checkbox-group input[type="checkbox"] {
    margin-top: 4px;
    flex-shrink: 0;
}

.checkbox-group label {
    margin-bottom: 0;
    font-weight: normal;
    font-size: 14px;
}

.checkbox-group a {
    color: #298543;
    text-decoration: underline;
}

/* Submit button */
.datasheet-submit-btn {
    width: 100%;
    padding: 12px;
    background-color: #298543;
    color: white;
    border: none;
    border-radius: 15px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.3s;
}

.datasheet-submit-btn:hover {
    background-color: #000;
}

.datasheet-submit-btn:disabled {
    background-color: #ccc;
    cursor: not-allowed;
}

/* Messages */
.datasheet-message {
    display: none;
    padding: 12px;
    border-radius: 4px;
    margin-top: 15px;
    text-align: center;
}

.datasheet-message.success {
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.datasheet-message.error {
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

/* Responsive */
@media (max-width: 768px) {
    .datasheet-modal-content {
        margin: 10% auto;
        padding: 20px;
        width: 95%;
        overflow-y: auto;
        
    }

    .form-row {
        flex-direction: column;
        gap: 0;
    }

    .form-group.half {
        width: 100%;
    }
}