:root {
  color-scheme: light;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #eef2ed;
  color: #17221d;
}

* { box-sizing: border-box; }

body { margin: 0; }

.login-shell {
  min-height: 100svh;
  display: grid;
  place-items: center;
  padding: 24px;
  background: linear-gradient(145deg, #176b4d 0 34%, #eef2ed 34% 100%);
}

.login-card {
  width: min(100%, 420px);
  padding: 36px;
  border: 1px solid #d8dfd9;
  border-radius: 24px;
  background: #fff;
  box-shadow: 0 22px 60px rgb(20 62 46 / 18%);
}

.eyebrow { margin: 0; color: #176b4d; font-size: 12px; font-weight: 800; letter-spacing: .16em; }
h1 { margin: 10px 0 8px; font-size: 30px; }
.intro { margin: 0 0 24px; color: #657169; line-height: 1.55; }
.error { padding: 10px 12px; border-radius: 10px; background: #fde8e5; color: #a52d22; }
label { display: grid; gap: 8px; margin: 16px 0; font-weight: 700; }
input {
  width: 100%;
  min-height: 48px;
  padding: 0 14px;
  border: 1px solid #bfc9c1;
  border-radius: 12px;
  font: inherit;
  background: #fff;
}
input:focus { outline: 3px solid rgb(23 107 77 / 18%); border-color: #176b4d; }
button {
  width: 100%;
  min-height: 50px;
  margin: 10px 0 22px;
  border: 0;
  border-radius: 14px;
  background: #176b4d;
  color: #fff;
  font: inherit;
  font-weight: 800;
}
small { color: #7a857e; }

@media (max-width: 520px) {
  .login-shell { padding: 16px; place-items: end center; }
  .login-card { padding: 28px 22px; border-radius: 22px; }
}