:root { font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; color: #17382f; background: #f3f5f0; }
* { box-sizing: border-box; }
body { min-height: 100vh; margin: 0; display: grid; place-items: center; padding: 24px; background: radial-gradient(circle at 50% 10%, #fff 0, #f3f5f0 48%, #e8eee7 100%); }
.login-card { width: min(100%, 430px); padding: 42px; border: 1px solid #d8e0d8; border-radius: 18px; background: #fff; box-shadow: 0 24px 70px rgba(28, 62, 50, .12); }
.brand-mark { width: 48px; height: 48px; display: grid; place-items: center; border-radius: 12px; color: #dff36d; background: #174b39; font-size: 20px; font-weight: 800; letter-spacing: -.04em; }
.eyebrow { margin: 28px 0 8px; color: #6a7e75; font-size: 12px; font-weight: 700; letter-spacing: .09em; text-transform: uppercase; }
h1 { margin: 0; font-size: clamp(28px, 7vw, 38px); line-height: 1.08; letter-spacing: -.04em; }
.intro { margin: 14px 0 28px; color: #64756e; font-size: 15px; line-height: 1.55; }
.error { margin: -8px 0 20px; padding: 11px 13px; border-radius: 9px; color: #8b2e24; background: #fff0ed; font-size: 14px; }
form { display: grid; gap: 10px; }
label { font-size: 13px; font-weight: 700; }
input { width: 100%; height: 48px; padding: 0 14px; border: 1px solid #cbd6cd; border-radius: 9px; color: #17382f; background: #fff; font: inherit; }
input:focus { outline: 3px solid #dff1ce; border-color: #4f7a65; }
button { height: 48px; margin-top: 6px; border: 0; border-radius: 9px; color: #fff; background: #174b39; font: inherit; font-weight: 750; cursor: pointer; }
button:hover { background: #103e30; }
button:focus-visible { outline: 3px solid #bedaa9; outline-offset: 2px; }
@media (max-width: 520px) { .login-card { padding: 30px 24px; border-radius: 14px; } }