:root {
  color-scheme: light;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: #17231e;
  background: #edf2ef;
  --brand: #174d3a;
  --muted: #6e7c75;
  --line: #d6e0da;
}

* { box-sizing: border-box; }
body { margin: 0; min-height: 100vh; background: #edf2ef; }
.login-shell { min-height: 100vh; display: grid; place-items: center; padding: 24px; }
.login-card { width: min(430px, 100%); padding: 38px; border: 1px solid rgba(214,224,218,.95); border-radius: 28px; background: rgba(255,255,255,.97); box-shadow: 0 26px 80px rgba(23,77,58,.12); }
.wordmark { margin: 0 0 22px; color: var(--brand); font-size: 12px; font-weight: 900; letter-spacing: .18em; }
h1 { margin: 0; font-size: clamp(30px, 8vw, 42px); line-height: 1; letter-spacing: -.045em; }
.intro { margin: 14px 0 26px; color: var(--muted); line-height: 1.5; }
form { display: grid; gap: 17px; }
label { display: grid; gap: 8px; color: #36443d; font-size: 14px; font-weight: 800; }
input { width: 100%; border: 1px solid var(--line); border-radius: 14px; padding: 14px 15px; background: #fff; color: #17231e; font: inherit; outline: none; }
input:focus { border-color: #35b98a; box-shadow: 0 0 0 4px rgba(53,185,138,.13); }
button { margin-top: 3px; border: 0; border-radius: 14px; padding: 14px 18px; background: var(--brand); color: #fff; font: inherit; font-weight: 850; cursor: pointer; }
button:hover { background: #103e2e; }
.login-error { margin: -8px 0 20px; padding: 12px 14px; border-radius: 13px; background: #fbe7e5; color: #963b38; font-size: 14px; font-weight: 750; }
.security-note { margin: 22px 0 0; color: #89948e; text-align: center; font-size: 12px; }

@media (max-width: 480px) {
  .login-shell { align-items: start; padding: 12px; }
  .login-card { margin-top: 8vh; padding: 28px 22px; border-radius: 23px; }
}