body {
    font-family: system-ui, sans-serif;
    background: #f6f7fb;
    padding: 20px;
}

h1, h2 { text-align: center; }

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 15px;
}

.card {
    background: white;
    padding: 15px;
    border-radius: 12px;
    box-shadow: 0 10px 20px rgba(0,0,0,.05);
    text-align: center;
}

input, textarea, button {
    width: 100%;
    padding: 10px;
    margin-top: 8px;
}

button {
    background: black;
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
}

.notice {
    background: #fff3cd;
    padding: 12px;
    border-radius: 8px;
    margin-bottom: 15px;
    text-align: center;
}

.cart-link {
    text-align: center;
    margin-bottom: 15px;
}

.order-summary {
    background: white;
    padding: 15px;
    border-radius: 10px;
    list-style: none;
}