:root { color-scheme: light; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; color: #101014; background: #f5f7fc; font-synthesis: none; }
* { box-sizing: border-box; }
body { margin: 0; min-height: 100svh; padding: 0 24px 32px; background: radial-gradient(ellipse at 50% 0%, #eaf0ff, transparent 65%), #f5f7fc; }
.masthead { max-width: 1080px; margin: 0 auto; padding: 32px 0; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.wordmark { color: #101014; font-size: 35px; font-weight: 850; letter-spacing: -2px; text-decoration: none; }
.wordmark span { color: #1d55f5; }
select { padding: 10px 12px; border: 1px solid #d1d6e0; border-radius: 10px; background: #fff; color: #343b4c; font: inherit; font-size: 14px; min-height: 44px; }
.card { max-width: 480px; margin: 32px auto 0; padding: 40px; background: #fff; border: 1px solid #e6e9f1; border-radius: 28px; box-shadow: 0 16px 64px #14235008; }
.mark { width: 52px; height: 52px; border-radius: 16px; background: #eaf0ff; color: #1d55f5; font-size: 32px; font-weight: 600; display: grid; place-items: center; margin-bottom: 30px; }
.eyebrow { color: #3355a0; font-size: 11px; line-height: 1.5; font-weight: 750; letter-spacing: 1.8px; margin: 0 0 12px; }
h1 { font-size: 32px; line-height: 1.16; letter-spacing: -.9px; margin: 0 0 16px; font-weight: 750; }
h1:focus { outline: none; }
.intro { color: #555d70; font-size: 16px; line-height: 1.6; margin: 0 0 24px; }
.account { background: #f3f5fa; border-radius: 10px; padding: 12px 14px; font-weight: 600; line-height: 1.5; overflow-wrap: anywhere; margin: 0 0 24px; }
label { display: block; font-size: 14px; font-weight: 650; margin: 0 0 9px; }
input { display: block; width: 100%; padding: 14px; border: 1px solid #cdd3df; border-radius: 12px; font: inherit; font-size: 17px; color: #101014; min-height: 52px; background: #fff; }
input[aria-invalid="true"] { border-color: #a22a35; }
.hint { color: #5c6475; font-size: 12px; line-height: 1.5; margin: 8px 0 23px; }
.primary { display: block; width: 100%; min-height: 52px; padding: 16px; border: 0; border-radius: 12px; background: #1d55e7; color: white; font: inherit; font-size: 15px; font-weight: 700; text-align: center; text-decoration: none; cursor: pointer; margin-top: 24px; }
.primary:hover { background: #1645c6; }
.primary:disabled { opacity: .65; cursor: wait; }
:focus-visible { outline: 3px solid #789eff; outline-offset: 4px; }
.notice { background: #fff0f1; border-radius: 10px; padding: 12px 14px; color: #922333; font-size: 14px; line-height: 1.5; }
.footnote { color: #646c7d; font-size: 12px; line-height: 1.6; text-align: center; margin: 28px 0 0; }
footer { margin: 28px auto 0; text-align: center; color: #616a7c; font-size: 12px; line-height: 1.6; }
[hidden] { display: none !important; }
@media (max-width: 520px) { body { padding: 0 20px 28px; } .masthead { padding: 24px 0; } .card { margin-top: 16px; padding: 28px 24px; border-radius: 24px; } h1 { font-size: 29px; } }
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { scroll-behavior: auto !important; } }