:root { color-scheme: light; font-family: system-ui, -apple-system, "Segoe UI", sans-serif; color: #1e293b; background: #f1f5f9; }
* { box-sizing: border-box; }
body { margin: 0; min-height: 100vh; min-height: 100dvh; display: grid; place-items: center; padding: 24px; }
.login-card { width: min(100%, 420px); padding: 32px; background: #fff; border: 1px solid #cbd5e1; border-radius: 16px; }
h1 { margin: 0 0 12px; font-size: 2rem; }
p { line-height: 1.6; }
button { width: 100%; min-height: 48px; padding: 12px 16px; border: 0; border-radius: 8px; background: #2563eb; color: #fff; font: inherit; font-weight: 600; cursor: pointer; }
button:hover { background: #1d4ed8; }
button:disabled { opacity: .6; cursor: wait; }
a { color: #1d4ed8; overflow-wrap: anywhere; }
button:focus-visible, a:focus-visible { outline: 3px solid #f59e0b; outline-offset: 3px; }
.status { min-height: 3em; font-size: .9rem; }
.status.error { color: #b91c1c; }
.support { margin-bottom: 0; font-size: .85rem; color: #475569; }
[hidden] { display: none !important; }
.login-divider { margin: 24px 0 18px; padding-top: 20px; border-top: 1px solid #cbd5e1; color: #475569; font-size: .9rem; }
label { display: block; margin: 14px 0 6px; font-size: .9rem; font-weight: 600; }
input { width: 100%; min-height: 46px; border: 1px solid #94a3b8; border-radius: 8px; padding: 10px 12px; font: inherit; color: #1e293b; background: #fff; }
input:focus-visible { outline: 3px solid #f59e0b; outline-offset: 3px; }
#schoolSignInButton { margin-top: 18px; }
.school-help { margin-bottom: 0; color: #475569; font-size: .85rem; }