:root { color-scheme: light dark; font-family: system-ui, sans-serif; color: #163e35; background: #f5f8f6; }
body { margin: 0; padding: 24px; }
[hidden] { display: none !important; }
main { max-width: 460px; margin: 7vh auto; padding: 32px; border: 1px solid #cbd8d0; border-radius: 24px; background: #fff; }
nav { text-align: right; }
.brand { font-size: 26px; font-weight: 750; margin: 12px 0; }
.environment { color: #0a866d; font-size: 13px; font-weight: 700; }
h1 { font-size: clamp(28px, 6vw, 38px); letter-spacing: -.035em; line-height: 1.15; }
p { line-height: 1.6; }
form { display: grid; gap: 12px; margin-top: 24px; }
label { font-weight: 600; }
input { box-sizing: border-box; width: 100%; min-height: 48px; padding: 12px; border: 1px solid #9aafa3; border-radius: 10px; font: inherit; }
button { min-height: 44px; border-radius: 10px; font: inherit; font-weight: 600; cursor: pointer; }
#submit { border: 0; background: #0a866d; color: #fff; margin-top: 12px; padding: 12px 18px; }
#language { border: 1px solid #9aafa3; padding: 4px 12px; background: transparent; color: inherit; }
button:disabled { cursor: wait; opacity: .65; }
:focus-visible { outline: 3px solid #0a866d; outline-offset: 4px; }
.footnote { font-size: 13px; opacity: .75; margin-top: 28px; }
#status { font-weight: 600; overflow-wrap: anywhere; }
@media (max-width: 420px) { body { padding: 16px; } main { margin: 3vh auto; padding: 22px; } }
@media (prefers-color-scheme: dark) { :root { color: #edf7f2; background: #0b1411; } main { background: #13211b; border-color: #31493c; } .environment { color: #65d5b6; } }