body {
    font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    margin: 0;
    padding: 0;
    background: #f7f7f7;
    color: #222;
}
a { color: #5b2a86; }
main {
    padding: 1rem;
}
.checkout-wrapper, .thanks-wrapper, .admin-auth-wrapper {
    max-width: 960px;
    margin: 0 auto;
    padding: 2rem 1rem;
    background: #fff;
}
.checkout-wrapper {
    display: grid;
    grid-template-columns: 1.2fr 1.8fr;
    gap: 2rem;
}
.checkout-summary {
    background: #f3ecff;
    padding: 1.5rem;
    border-radius: .75rem;
}
.checkout-form form label {
    display: block;
    margin-bottom: 1rem;
}
.checkout-form input {
    width: 100%;
    padding: .5rem;
    margin-top: .25rem;
    border-radius: .25rem;
    border: 1px solid #ccc;
}
button#submit, .admin-auth-wrapper button {
    background: #00b650;
    color: #fff;
    border: none;
    padding: 1rem 1.5rem;
    font-size: 1rem;
    cursor: pointer;
    border-radius: .25rem;
}
button#submit:disabled {
    opacity: .7;
    cursor: default;
}
.admin-header {
    background: #5b2a86;
    color: #fff;
    padding: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.admin-header nav a {
    color: #fff;
    margin-left: 1rem;
    text-decoration: none;
    font-size: .95rem;
}
.admin-dashboard .stats {
    display: flex;
    gap: 1rem;
    margin: 1rem;
}
.admin-dashboard .card {
    background: #fff;
    padding: 1rem;
    border-radius: .5rem;
    flex: 1;
    text-align: center;
}
.admin-dashboard .list {
    margin: 1rem;
}
.admin-dashboard table {
    width: 100%;
    border-collapse: collapse;
    background: #fff;
}
.admin-dashboard th, .admin-dashboard td {
    padding: .5rem;
    border: 1px solid #ddd;
    font-size: .88rem;
    vertical-align: top;
}
.error { color: #b00020; }
.success { color: #008000; }
pre {
    white-space: pre-wrap;
    word-wrap: break-word;
    font-size: .75rem;
}
@media (max-width: 768px) {
    .checkout-wrapper {
        grid-template-columns: 1fr;
    }
    .admin-dashboard .stats {
        flex-direction: column;
    }
}