:root {
  color-scheme: light;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Roboto", sans-serif;
  background: radial-gradient(circle at 10% 20%, #f6f8fb, #e8edf6 45%, #dde4f0 100%);
  color: #1f2937;
}

.login-shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 1.5rem;
}

.login-card {
  width: min(480px, 100%);
  background: #ffffff;
  border: 1px solid #d6dee9;
  border-radius: 14px;
  box-shadow: 0 16px 36px rgba(31, 41, 55, 0.08);
  padding: 2rem;
}

.eyebrow {
  margin: 0;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #607086;
}

h1 {
  margin: 0.6rem 0 0;
  font-size: 1.9rem;
  color: #111827;
}

.subtle {
  margin: 0.8rem 0 1.4rem;
  color: #4b5563;
  line-height: 1.5;
}

.separator {
  margin: 1rem 0;
  text-align: center;
  color: #64748b;
  font-size: 0.9rem;
}

.login-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  min-height: 44px;
  border-radius: 10px;
  text-decoration: none;
  font-weight: 600;
  color: #ffffff;
  background: #1d4ed8;
}

.login-btn:hover {
  background: #1e40af;
}

.local-form {
  display: grid;
  gap: 0.55rem;
}

.local-form label {
  font-size: 0.9rem;
  color: #334155;
}

.local-form input {
  width: 100%;
  min-height: 42px;
  border: 1px solid #cdd6e1;
  border-radius: 10px;
  padding: 0 0.75rem;
  font-family: "Roboto", sans-serif;
  font-size: 0.95rem;
}

.login-btn.local {
  margin-top: 0.55rem;
}

.disabled-box {
  border: 1px solid #f0b429;
  border-radius: 10px;
  background: #fff8e7;
  color: #713f12;
  padding: 0.9rem 1rem;
  line-height: 1.5;
}