body {
    font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;
    margin: 0;
}

header {
    background: #0a0f1a;
    color: #fff;
    padding: 10px;
}

nav a,
nav form button {
    color: #fff;
    margin-right: 10px;
    text-decoration: none;
}

.container {
    max-width: 960px;
    margin: 20px auto;
    padding: 0 16px;
}

label {
    display: block;
    margin: 8px 0;
}

input,
select,
button {
    padding: 8px;
    font-size: 14px;
}

table {
    border-collapse: collapse;
    width: 100%;
}

th,
td {
    border: 1px solid #e3e6ea;
    padding: 8px;
    text-align: left;
}