.open-house-popup-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 999999;
    opacity: 1;
    visibility: visible;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.open-house-popup-overlay.hidden {
    opacity: 0;
    visibility: hidden;
}

.open-house-popup-content {
    background: #ffffff;
    padding: 30px;
    border-radius: 8px;
    width: 90%;
    max-width: 500px;
    position: relative;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
    font-family: sans-serif;
}

.open-house-popup-close {
    position: absolute;
    top: 15px;
    right: 15px;
    background: transparent;
    border: none;
    font-size: 28px;
    line-height: 1;
    cursor: pointer;
    color: #888;
    transition: color 0.2s ease;
}

.open-house-popup-close:hover {
    color: #333;
}

.open-house-popup-content h2 {
    margin-top: 0;
    margin-bottom: 20px;
    font-size: 24px;
    color: #333;
}

.form-group {
    margin-bottom: 15px;
}

.form-group label {
    display: block;
    margin-bottom: 6px;
    font-weight: 600;
    font-size: 14px;
    color: #444;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-family: inherit;
    font-size: 14px;
    box-sizing: border-box;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #0073aa;
    box-shadow: 0 0 0 1px #0073aa;
}

.submit-btn {
    width: 100%;
    padding: 12px;
    background: #0073aa;
    color: #fff;
    border: none;
    border-radius: 4px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s ease;
}

.submit-btn:hover {
    background: #005177;
}

.form-message {
    margin-top: 15px;
    text-align: center;
    font-size: 14px;
    font-weight: bold;
}

.form-message.success {
    color: #2e7d32;
}

.form-message.error {
    color: #d32f2f;
}