:root { color-scheme: light dark; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; color: #202333; background: #f7f7fb; }
* { box-sizing: border-box; }
body { margin: 0; padding: 36px 24px; min-height: 100svh; display: grid; place-items: center; }
main { width: min(100%, 480px); text-align: center; }
.brand { color: #5c68d0; font-size: 16px; font-weight: 650; letter-spacing: -.02em; margin: 0 0 56px; }
.illustration { width: 126px; height: 80px; margin: 0 auto 30px; position: relative; }
.illustration span { border: 5px solid #7984e1; border-radius: 50%; width: 76px; height: 76px; position: absolute; left: 0; }
.illustration span + span { left: 48px; border-color: #b3b9ee; }
h1 { font-size: clamp(28px, 6vw, 36px); line-height: 1.2; font-weight: 650; letter-spacing: -.045em; margin: 0 0 20px; }
.intro { color: #595e74; font-size: 17px; line-height: 1.6; margin: 0 0 28px; }
.button { background: #5c68d0; color: #fff; display: block; border-radius: 16px; padding: 18px 22px; text-decoration: none; font-size: 17px; font-weight: 650; }
.button:hover { background: #4b57bb; }
.button:focus-visible { outline: 3px solid #303c9a; outline-offset: 5px; }
.hint, .help p, .status { font-size: 15px; line-height: 1.6; color: #595e74; }
.hint { margin: 18px 8px 30px; }
.help { text-align: left; padding: 22px; border-radius: 18px; background: #fff; border: 1px solid #e8e9f2; }
h2 { font-size: 16px; margin: 0 0 8px; }
.help p { margin: 0; }
.status:empty { display: none; }
footer { margin-top: 44px; color: #6b7085; font-size: 13px; line-height: 1.5; }
[hidden] { display: none !important; }
@media (prefers-color-scheme: dark) {
  :root { color: #f4f4fb; background: #121320; }
  .brand { color: #a6afff; }
  .intro, .hint, .help p, .status { color: #bec2d7; }
  .help { background: #1c1e30; border-color: #30334c; }
  footer { color: #a4a9c0; }
}