:root { font-family: system-ui, sans-serif; color: #243047; background: #f2f5f8; }
* { box-sizing: border-box; }
body { min-height: 100vh; margin: 0; padding: 24px; display: grid; place-items: center; }
.card { width: min(100%, 440px); padding: 32px; border-radius: 16px; background: #fff; box-shadow: 0 12px 36px #24304718; }
.brand { color: #527391; font-size: 13px; font-weight: 700; letter-spacing: .04em; }
h1 { margin: 12px 0; font-size: 30px; }
p { line-height: 1.5; }
form { display: grid; gap: 12px; margin-top: 24px; }
[hidden] { display: none !important; }
a { color: #1b5279; text-underline-offset: 3px; }
.hint { color: #526579; font-size: 14px; }
label { font-weight: 600; }
input { width: 100%; padding: 12px; border: 1px solid #a8b6c6; border-radius: 8px; font: inherit; }
input:focus-visible, button:focus-visible, a:focus-visible { outline: 3px solid #7ab5e7; outline-offset: 2px; }
button { padding: 12px; border: 0; border-radius: 8px; background: #1b5279; color: #fff; font: inherit; font-weight: 700; cursor: pointer; }
button:disabled { opacity: .6; cursor: wait; }
#message { min-height: 24px; margin-bottom: 0; }