:root { color-scheme: light; font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; color: #173b38; background: #f1f6f5; }
* { box-sizing: border-box; }
body { margin: 0; min-height: 100vh; display: grid; place-items: center; padding: 28px 18px; background: radial-gradient(ellipse at 15% 15%, #d8ece6, transparent 55%), #f1f6f5; }
.login-card { width: 100%; max-width: 440px; background: #fff; border: 1px solid #dce7e3; border-radius: 20px; padding: 42px; box-shadow: 0 18px 60px #173b3810; }
.brand-mark { display: grid; place-items: center; width: 46px; height: 46px; border-radius: 12px; background: #116d5c; color: white; font-size: 32px; margin-bottom: 25px; }
.eyebrow { font-size: 11px; font-weight: 700; letter-spacing: .13em; color: #52746b; margin: 0 0 12px; }
h1 { margin: 0; font-size: 30px; font-weight: 650; letter-spacing: -.04em; }
.intro { font-size: 14px; line-height: 1.6; color: #647b75; margin: 12px 0 28px; }
label { display: block; font-size: 13px; font-weight: 600; margin: 18px 0 8px; }
input:not([type=hidden]) { display: block; width: 100%; min-height: 46px; border: 1px solid #bfd1ca; border-radius: 8px; padding: 10px 12px; font: inherit; color: #173b38; background: white; }
input:focus-visible, button:focus-visible { outline: 3px solid #b9e1d5; outline-offset: 2px; }
button { display: flex; justify-content: space-between; align-items: center; width: 100%; min-height: 47px; margin-top: 26px; border: 0; border-radius: 8px; background: #116d5c; color: white; padding: 12px 16px; font: inherit; font-weight: 600; cursor: pointer; }
button:hover { background: #0c5749; }
.footnote { font-size: 12px; line-height: 1.6; color: #758982; margin: 24px 0 0; }
.error { font-size: 13px; line-height: 1.5; color: #8d2e2e; background: #fff1ef; padding: 12px; border-radius: 8px; }
@media (max-width: 480px) { .login-card { padding: 30px 25px; } }