:root {
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: #16221b;
  background: #eef2ec;
  font-synthesis: none;
}

* { box-sizing: border-box; }
body { margin: 0; min-height: 100vh; }
.login-shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
  background:
    radial-gradient(circle at 12% 18%, rgba(234, 255, 71, .22), transparent 26rem),
    linear-gradient(145deg, #f7f9f4 0%, #e7ece5 100%);
}
.login-card {
  width: min(100%, 440px);
  padding: 38px;
  border: 1px solid #d2dbd1;
  border-radius: 24px;
  background: rgba(255, 255, 255, .96);
  box-shadow: 0 24px 70px rgba(22, 34, 27, .12);
}
.brand-mark {
  display: grid;
  place-items: center;
  width: 58px;
  height: 58px;
  border-radius: 16px;
  color: #19221b;
  background: #eaff47;
  font-weight: 950;
  font-size: 22px;
  letter-spacing: -.06em;
}
.eyebrow { margin: 28px 0 7px; color: #6d786f; font-size: 11px; font-weight: 850; letter-spacing: .15em; }
h1 { margin: 0; font-size: clamp(29px, 7vw, 38px); line-height: 1.04; letter-spacing: -.045em; }
.intro { margin: 14px 0 26px; color: #68736a; font-size: 15px; line-height: 1.55; }
form { display: grid; gap: 17px; }
label { display: grid; gap: 7px; color: #4c594f; font-size: 13px; font-weight: 750; }
input {
  width: 100%;
  height: 50px;
  padding: 0 14px;
  border: 1px solid #cbd5cb;
  border-radius: 12px;
  background: #fbfcfa;
  color: #16221b;
  font: inherit;
  outline: none;
}
input:focus { border-color: #6e7e21; box-shadow: 0 0 0 4px rgba(211, 235, 52, .2); }
button {
  height: 52px;
  margin-top: 5px;
  border: 0;
  border-radius: 13px;
  background: #1c2a20;
  color: white;
  font: inherit;
  font-weight: 850;
  cursor: pointer;
}
button:hover { background: #2d3d31; }
.error { padding: 12px 14px; border-radius: 10px; background: #fff0eb; color: #a23520; font-size: 13px; font-weight: 700; }
.security-note { display: flex; gap: 9px; align-items: center; margin: 22px 0 0; color: #7a857c; font-size: 12px; }
.security-note i { width: 8px; height: 8px; border-radius: 50%; background: #b5cf1b; box-shadow: 0 0 0 4px rgba(181, 207, 27, .17); }

@media (max-width: 520px) {
  .login-shell { padding: 14px; }
  .login-card { padding: 28px 22px; border-radius: 20px; }
}