body {
    font-family: 'Segoe UI', Arial, sans-serif;
    background: #f5fbf8;
    margin: 0;
    padding: 0 0 40px 0;
    color: #222;
}
h1 {
    text-align: center;
    color: #217a57;
    margin: 30px 0 10px 0;
    letter-spacing: 1px;
    font-size: 1.6em;
}
form {
    max-width: 700px;
    margin: 0 auto;
    background: #fff;
    padding: 20px 26px 12px 26px;
    border: 1px solid #c1e1ce;
    border-radius: 8px;
    box-shadow: 0 3px 10px #d3ede58e;
}
fieldset {
    border: 1px solid #a5d6b5;
    padding: 1.2em 1em 0.9em;
    margin-bottom: 1.5em;
    border-radius: 6px;
    background: #f7fcfa;
}
legend {
    font-weight: bold;
    color: #217a57;
    font-size: 1.13em;
    letter-spacing: 0.5px;
    padding: 0 10px;
}
.form-group {
    display: flex;
    flex-direction: column;
    margin-bottom: 1.1em;
}
.form-group label {
    margin-bottom: 0.27em;
    font-weight: 500;
    color: #217a57;
}
.form-group input,
.form-group select,
.form-group textarea {
    padding: 0.5em 0.7em;
    font-size: 1em;
    border: 1px solid #a5d6b5;
    border-radius: 4px;
    background: #fcfffd;
    transition: border-color 0.2s;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: #40b178;
    outline: none;
    background: #f2fbf5;
}
textarea {
    min-height: 45px;
    resize: vertical;
}
.form-actions {
    text-align: right;
    margin-top: 0.5em;
}
.btn-submit, .button {
    background: #217a57;
    color: #fff;
    padding: 0.7em 1.5em;
    font-size: 1em;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    margin-top: 10px;
    margin-right: 10px;
    text-decoration: none;
    display: inline-block;
    transition: background 0.2s;
}
.btn-submit:hover, .button:hover {
    background: #14523b;
}
.success {
    background: #d4edda;
    color: #155724;
    padding: 10px;
    margin-bottom: 10px;
    border-radius: 4px;
    border: 1px solid #a8e1bc;
    max-width: 650px;
    margin: 15px auto;
}
.error {
    background: #f8d7da;
    color: #721c24;
    padding: 10px;
    margin-bottom: 10px;
    border-radius: 4px;
    border: 1px solid #efa2a7;
    max-width: 650px;
    margin: 15px auto;
}
@media (min-width: 650px) {
    .form-group {
        flex-direction: row;
        align-items: center;
    }
    .form-group label {
        width: 180px;
        min-width: 140px;
        margin-bottom: 0;
        margin-right: 10px;
        text-align: right;
    }
    .form-group input,
    .form-group select,
    .form-group textarea {
        width: auto;
        flex: 1;
    }
}
@media (max-width: 540px) {
    form { padding: 12px 2vw; }
    h1 { font-size: 1.18em; }
    .form-actions { text-align: center; }
}