body {
    background-image: url('../img/RIR_Astra.jpg'); 
    background-size: cover;
    background-repeat: no-repeat; 
    background-attachment: fixed; 
    background-position: center center; 
    color: #333; 
}

.header-container {
    background-color: white;
    padding: 10px 0;
    text-align: center; 
}

.header-logo {
    max-height: 60px; 
}

.navbar-nav .nav-item {
    margin-left: 10px;
}

.greet {
    color: white; 
    display: flex;
    align-items: center;
}

.video-container {
    position: relative;
    width: 100%;
    padding-bottom: 56.25%; /* 16:9 соотношение сторон */
    overflow: hidden;
}

.video-container video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.rectangle-2 {
    border: 1px solid #ccc;
    border-radius: 10px;
    padding: 20px;
    background-color: #f9f9f9;
    text-align: center;
}
.rectangle-2 p {
    margin: 10px 0;
}
.rectangle-2 button {
    margin-top: 20px;
}

ul, li {
    list-style: none;
}