:root { color-scheme: dark; font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; background: #111714; color: #edf1ed; }
* { box-sizing: border-box; }
body { min-width: 320px; min-height: 100dvh; margin: 0; display: grid; place-items: center; background: radial-gradient(circle at 74% 22%, #1e3024 0, transparent 30rem), #111714; }
main { width: min(100% - 48px, 640px); padding: 28px 0; }
.mark { margin: 0; color: #c8df84; font-size: .76rem; font-weight: 750; letter-spacing: .16em; }
.rule { width: 42px; height: 1px; margin: 28px 0 25px; background: #c8df84; }
h1 { margin: 0; font-size: clamp(3.25rem, 11vw, 6.4rem); line-height: .94; letter-spacing: -.07em; font-weight: 720; }
.message { margin: 20px 0 0; color: #aeb9b1; font-size: clamp(1rem, 2vw, 1.18rem); letter-spacing: -.015em; }
@media (max-width: 560px) { main { width: min(100% - 40px, 640px); } }