.platform-choices { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
.platform-choice { padding: clamp(20px, 3vw, 32px); border: 1px solid #595362; border-radius: 12px; background: #15131d; display: flex; flex-direction: column; align-items: flex-start; }
.platform-choice h3 { margin: 0 0 12px; font-size: 1.5rem; }
.platform-choice .r-button { margin-top: auto; }
.platform-current { border-color: #ec80dc; box-shadow: 0 0 0 2px #ec80dc; }
.platform-match { color: #f4a5e7; font-size: .78rem; font-weight: 700; margin: 0 0 12px; }
.platform-match[hidden] { display: none; }
.purchase-help { margin: 20px 0; padding: 16px 20px; border-left: 3px solid #cb79bc; background: #ffffff06; font-size: .86rem; line-height: 1.65; color: #c8c2d1; }
.purchase-help p { margin: 0; }
.purchase-help p + p { margin-top: 8px; }
.purchase-help strong { color: #f7f3fa; }
.purchase-help a { color: #f3a4e7; text-underline-offset: 3px; }
@media (max-width: 640px) { .platform-choices { grid-template-columns: 1fr; } }