* {
    margin:0;
    padding: 0;
    box-sizing: border-box;
}
body{
    background: url('https://img.goodfon.com/original/1600x1200/1/40/pirs-prichal-gorizont-more-voda.jpg') ;
    height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: white;
    text-align: center;
    font-family: Arial, Helvetica, sans-serif;
}
nav{
    position: absolute;
    top: 0;
    width: 100%;
    background:rgba(0,0,0,0.5);
    padding: 15px 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.logo {
    font-size: 20px;
    font-weight: bold;
    color: white;
    align-items: left;
}

.menu {
    list-style: none;
    display: flex;
}

.menu li {
    margin: 0 15px;
}

.menu li a {
    color: white;
    text-decoration: none;
    font-size: 14px;
}
.container {
    position: relative;
    z-index: 1;
    text-align: center ;
}
h1{
    font-size: 24px;
    background:rgba(255,255,255,0.2);
    display: inline-block;
    padding: 5px 10px;
    border-radius: 5px;
   
}
p{
    font-size: 14px;
    background: rgba(255,255,255,0.2);
    display: inline-block;
    padding: 3px 7px;
    border-radius: 5px;
    margin-top: 5px;
}
.buttons{
    margin-top: 15px;
}
.btn{
    padding: 8px 15px;
    border: none;
    cursor: pointer;
    font-size: 14px;
    border-radius: 5px;
    background:#28a745;
    color: white;
    margin: 5px;
}
.btn-sec{
    background: #007bff ;
}