.buy-now {
    box-sizing: border-box;
    display: inline-block;
    padding: 10px 20px;
    margin: 15px 0;
    border: 1px solid #fcd200;
    border-radius: 8px;
    background: #ffd814;
    color: #111;
    font-family: inherit;
    font-size: 16px;
    font-weight: bold;
    line-height: 1.4;
    text-align: center;
    text-decoration: none;
    opacity: 1;
    cursor: pointer;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.15);
}
.buy-now:hover { background: #f7ca00; color: #111; text-decoration: none; }
html.dark a.buy-now { color: #111; }
.buy-now--disabled,
.buy-now--disabled:hover {
    background: #d1d5db;
    border-color: #9ca3af;
    color: #4b5563;
    cursor: not-allowed;
    box-shadow: none;
}
.buy-inline--grey { color: #6b7280; cursor: not-allowed; }
.buy-inline--inactive { color: var(--primary, #2563eb); text-decoration: underline; cursor: pointer; }