.age-gate {
    min-height: 70vh;
    display: grid;
    place-items: center;
    background: radial-gradient(circle at center, rgba(166, 63, 49, .15), transparent 55%);
}
.age-gate .panel { max-width: 680px; text-align: center; padding: 50px; }
.age-gate h1 { font: 48px Georgia, serif; }
.age-gate .inline { justify-content: center; }