* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background: #f4f7f4;
    color: #1f2a21;
    line-height: 1.6;
}

.hero {
    background: #2E7D32;
    color: #fff;
    padding: 70px 20px;
    text-align: center;
}

.hero h1 {
    margin: 0;
    font-size: 42px;
}

.hero p {
    max-width: 720px;
    margin: 16px auto 0;
    font-size: 19px;
}

.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 36px 20px;
}

.card {
    background: #fff;
    border: 1px solid #dfe7dd;
    border-radius: 18px;
    padding: 26px;
    margin-bottom: 22px;
    box-shadow: 0 4px 14px rgba(0,0,0,.05);
}

.card h2 {
    margin-top: 0;
}

.warning {
    border-color: #f0c36d;
    background: #fff8e6;
}

pre {
    background: #142018;
    color: #e9f5ea;
    border-radius: 12px;
    padding: 18px;
    overflow-x: auto;
    font-size: 13px;
    line-height: 1.5;
}

code {
    background: #edf3ed;
    padding: 2px 5px;
    border-radius: 4px;
}

.button {
    display: inline-block;
    margin: 6px;
    padding: 13px 20px;
    border-radius: 10px;
    background: #2E7D32;
    color: #fff !important;
    font-weight: 800;
    text-decoration: none;
}

.button.secondary {
    background: #e6eee6;
    color: #1f2a21 !important;
}

.centre {
    text-align: center;
}

footer {
    text-align: center;
    padding: 36px 20px;
    color: #667066;
}