:root { color-scheme: light dark; font-family: ui-sans-serif, system-ui, sans-serif; }
* { box-sizing: border-box; }
body { margin: 0; min-height: 100vh; display: grid; place-items: center; background: #eef2ff; color: #172033; }
.card { width: min(92vw, 32rem); margin: 3rem auto; padding: 2rem; border-radius: 1rem; background: white; box-shadow: 0 1.5rem 4rem #27346a22; }
.brand { color: #5b63d3; font-weight: 750; letter-spacing: .08em; text-transform: uppercase; }
.logo { display: block; max-width: 10rem; max-height: 4rem; margin-bottom: 1rem; }
h1 { margin-top: .25rem; }
h2 { margin-top: 2rem; font-size: 1.15rem; }
label { display: grid; gap: .35rem; margin: 1rem 0; font-weight: 650; }
input { width: 100%; border: 1px solid #9aa4bd; border-radius: .5rem; padding: .7rem; font: inherit; background: white; color: #172033; }
button { border: 0; border-radius: .5rem; padding: .7rem 1rem; background: #4d55c7; color: white; font: inherit; font-weight: 700; cursor: pointer; }
button.secondary { margin-top: .75rem; background: #30384d; }
button.link { padding: 0; background: transparent; color: #4d55c7; }
a { color: #4048b6; }
.notice { padding: .75rem; border-radius: .5rem; background: #e8f8ee; color: #145b30; }
.error { padding: .75rem; border-radius: .5rem; background: #fff0f0; color: #8a2020; }
dl { display: grid; grid-template-columns: 7rem 1fr; gap: .5rem; }
dt { font-weight: 700; } dd { margin: 0; overflow-wrap: anywhere; }
.passkeys { padding-left: 1.25rem; }
.passkeys li { margin: .5rem 0; }
.passkeys form { display: inline; margin-left: .75rem; }
@media (prefers-color-scheme: dark) { body { background: #111827; color: #e8ebf5; } .card { background: #1f2937; } input { background: #111827; color: #e8ebf5; } a, button.link { color: #aeb4ff; } }