:root {
  color-scheme: light dark;
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #0d0d0d;
  color: #f5f5f5;
}

* { box-sizing: border-box; }
body { margin: 0; min-height: 100vh; display: grid; place-items: center; padding: 24px; }
.card {
  width: min(520px, 100%);
  border: 1px solid #333;
  border-radius: 18px;
  background: #171717;
  padding: 32px;
  box-shadow: 0 22px 80px rgba(0, 0, 0, .35);
}
.brand { font-weight: 800; font-size: 15px; letter-spacing: .08em; text-transform: uppercase; }
h1 { font-size: 30px; margin: 18px 0 10px; }
p { color: #bdbdbd; line-height: 1.55; }
.price { margin: 24px 0; }
.price strong { font-size: 38px; }
.price span { color: #aaa; }
.local-price { min-height: 22px; font-weight: 650; color: #fff; }
.methods { display: flex; flex-wrap: wrap; gap: 8px; margin: 18px 0; }
.methods span { border: 1px solid #3d3d3d; border-radius: 7px; padding: 6px 9px; font-size: 12px; }
.oauth { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.button.secondary { background: #252525; color: #f5f5f5; border: 1px solid #444; margin-top: 8px; }
.divider { display: flex; align-items: center; gap: 12px; color: #777; margin: 20px 0; }
.divider::before, .divider::after { content: ""; height: 1px; background: #333; flex: 1; }
.tabs { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-bottom: 14px; }
.tab { background: #252525; color: #aaa; margin: 0; padding: 9px; }
.tab.active { color: #111; background: #f5f5f5; }
.account-row { display: flex; justify-content: space-between; align-items: center; color: #aaa; font-size: 13px; }
.link-button { width: auto; margin: 0; padding: 5px 9px; background: transparent; color: #ddd; border: 1px solid #444; }
label { display: block; font-size: 13px; font-weight: 650; margin: 18px 0 7px; }
input {
  width: 100%; border: 1px solid #3f3f3f; border-radius: 9px; padding: 12px;
  background: #111; color: inherit; font: inherit;
}
button, .button {
  display: block; width: 100%; border: 0; border-radius: 10px; padding: 13px;
  background: #f5f5f5; color: #111; font: inherit; font-weight: 750;
  text-align: center; text-decoration: none; cursor: pointer; margin-top: 18px;
}
button:disabled { opacity: .55; cursor: wait; }
.fine { font-size: 11px; color: #868686; margin-top: 14px; }
.error { color: #ff7676; min-height: 20px; font-size: 13px; margin-top: 12px; }
.success { color: #70d98b; }