:root { color-scheme: light; font-family: system-ui, sans-serif; color: #19231d; background: #f7f4ed; }
* { box-sizing: border-box; }
body { margin: 0; min-height: 100svh; display: grid; place-items: center; padding: 24px 16px; }
main { width: min(100%, 460px); padding: clamp(24px, 6vw, 40px); background: #fffdf8; border: 1px solid #e4dfd4; border-radius: 28px; }
.brand { color: #255c48; font-weight: 750; letter-spacing: .15em; font-size: 1rem; }
.brand span { display: block; font-size: .75rem; letter-spacing: .12em; margin-top: 6px; }
h1 { font-size: clamp(1.65rem, 5vw, 2rem); line-height: 1.18; margin: 28px 0 20px; }
p { line-height: 1.6; font-size: 1rem; overflow-wrap: anywhere; }
#open-app { display: block; padding: 17px 18px; margin: 26px 0; color: white; background: #255c48; border-radius: 16px; text-align: center; font-weight: 700; font-size: 1.05rem; text-decoration: none; }
#open-app:focus-visible { outline: 3px solid #19231d; outline-offset: 4px; }
#open-app:hover { background: #194434; }
.help { color: #526057; font-size: .95rem; }