* {
    padding: 0;
    margin: 0;
    box-sizing: border-box;
}

html {
    font-size: 62.5%
}

body {
    font-family: Arial, Helvetica, sans-serif;
    font-size: 1.6rem;
    background-color: #1d1b1b;
}

table, th, td {
  border: 1px solid #ddd;
}


main, header {
    text-align: center;
}

header h1 {
    margin-bottom: 1rem;
    color: #ddd
}


input {
    border: none;
    padding: 0.5rem;
    border: 1px solid #ddd;
    border-radius: 0.5rem;
}

button {
    border: none;
    background-color: #ddd;
    color: #222;
    padding: 0.5rem;
    border-radius: 0.5rem;
    cursor: pointer;
    transition: 0.3s;
}


button:hover {
    background-color: #222;
    color: #ddd
}




.contacts {
    display: flex;
    justify-content: center;
    margin-top: 3rem;


}


.table_container {
    max-height: 70rem;
    overflow-y: scroll;

}


table {
    border-collapse: collapse;
    min-width: 700px;
}

thead th {
    position: sticky;
    top: 0;
    z-index: 1;
    background-color: #222;
}

th,
td {
    padding: 1rem;
    text-align: left;
    border: 1px solid #ccc;

}

tr:nth-child(even) td {
    background-color: #ddd;
}

tr:nth-child(odd) td {
    color: #fff;
}


th {
    color: #ddd
}