.hero {
    position: relative;
    background: url('../images/hero-image1.png') no-repeat center center/cover;
    height: 700px;
    color: white;
    text-align: center;
    display: flex;
    align-items: center;
    justify-content: center;
}
.hero .overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
}
.hero-content {
    position: relative;
    z-index: 1;
}
.hero-content h2 {
    font-size: 3em;
    margin: 0 0 10px;
}
.hero-content p {
    font-size: 1.2em;
    margin: 0 0 20px;
}
.hero-content button {
    background: #ff0000;
    border: none;
    padding: 10px 20px;
    color: white;
    cursor: pointer;
    border-radius: 5px;
    margin: 5px;
}
.introduction {
    padding: 20px;
    text-align: center;
    background: #f9f9f9;
}
.introduction h2 {
    font-size: 2em;
    margin: 0 0 10px;
}
.introduction p {
    font-size: 1.2em;
    margin: 0;
}