:root { color-scheme: light dark; font-family: system-ui, sans-serif; background: #10232a; color: #eaf6f5; }
* { box-sizing: border-box; }
body { margin: 0; padding: 24px 16px; min-height: 100vh; display: grid; place-items: center; }
main { width: min(100%, 460px); padding: 28px; border: 1px solid #45656d; border-radius: 18px; background: #193139; }
.brand { color: #85ded1; font-weight: 700; }
h1 { font-size: 1.5rem; line-height: 1.5; }
p { line-height: 1.7; }
form { display: grid; gap: 12px; }
label { margin-top: 8px; font-weight: 600; }
input, button { font: inherit; min-width: 0; width: 100%; border-radius: 10px; padding: 13px; }
input { border: 1px solid #829ca3; background: #10232a; color: #fff; }
input:focus-visible, button:focus-visible { outline: 3px solid #a6e9df; outline-offset: 3px; }
button { margin-top: 8px; border: 0; font-weight: 700; background: #85ded1; color: #10232a; cursor: pointer; }
button:disabled { opacity: .65; cursor: wait; }
#gate-status { min-height: 1.7em; margin: 0; color: #ffe2b2; overflow-wrap: anywhere; }
@media (max-width: 380px) { main { padding: 20px; } h1 { font-size: 1.3rem; } }