body {
    font-family: Arial, sans-serif;
    background: #f4f6f8;
    margin: 0;
}
.container {
    width: 85%;
    max-width: 900px;
    margin: 50px auto;
    background: white;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,.08);
}
h1 { margin-top: 0; }
.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-bottom: 15px;
}
input[type=text] {
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 5px;
}
.button {
    display: inline-block;
    padding: 10px 18px;
    background: #333;
    color: white;
    text-decoration: none;
    border: 0;
    border-radius: 5px;
    cursor: pointer;
}
.message {
    display: block;
    margin-bottom: 15px;
    font-weight: bold;
}
.grid {
    width: 100%;
    margin-top: 15px;
    border-collapse: collapse;
}
.grid th, .grid td {
    padding: 9px;
    border: 1px solid #ddd;
}