body{
    font-family:system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,Cantarell,Noto Sans,sans-serif;
    max-width:900px;
    margin:2rem auto;
    padding:0 1rem;
    background:#fff
}

header{
    display:flex;
    justify-content:space-between;
    align-items:center;
    margin-bottom:1rem
}

nav a{margin-right:.5rem}

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

th,td{
    border:1px solid #ddd;
    padding:.5rem
}

th{
    background:#f6f8fa;
    text-align:left
}
tr:nth-child(even){
    background:#fafbfc
}

.btn{
    display:inline-block;
    padding:.35rem .6rem;
    border:1px solid #888;
    border-radius:.4rem;
    text-decoration:none
}
.btn.primary{
    background:#0a7;
    color:#fff;
    border-color:#0a7
}
.btn.warn{
    background:#e33;
    color:#fff;
    border-color:#e33
}
input[type=text], input[type=email]{
    width:100%;
    padding:.4rem;
    border:1px solid #bbb;
    border-radius:.35rem
}

form .row{
    display:grid;
    grid-template-columns:150px 1fr;
    gap:.5rem;
    margin:.4rem 0
}
footer{
    margin-top:2rem;
    color:#666;
    font-size:.9rem
}
.alert{
    padding:.5rem .6rem;
    background:#eef9ff;
    border:1px solid #b5def7;
    border-radius:.35rem;
    margin:.6rem 0
}
.actions{display:flex;gap:.4rem}
.actions form{display:inline}