.login-shell {
  display: grid;
  min-height: 100vh;
  padding: 24px;
  place-items: center;
  background: linear-gradient(160deg, #0f172a, #1e293b 50%, #0f172a);
}

.login-card {
  width: min(420px, 100%);
  padding: 28px;
  background: #fff;
  border-radius: 16px;
  box-shadow: 0 20px 50px rgb(0 0 0 / 25%);
}

.login-card h1 {
  margin: 0 0 8px;
  font-size: 1.4rem;
}

.login-card p {
  margin: 0 0 20px;
  color: #64748b;
  font-size: 0.95rem;
}

.login-card label {
  display: block;
  margin: 0 0 6px;
  font-size: 0.85rem;
  font-weight: 600;
}

.login-card input {
  box-sizing: border-box;
  width: 100%;
  padding: 12px 14px;
  margin-bottom: 14px;
  font: inherit;
  border: 1px solid #cbd5e1;
  border-radius: 10px;
}

.login-card button {
  width: 100%;
  padding: 12px 14px;
  color: #fff;
  font-weight: 600;
  background: #0f172a;
  border: 0;
  border-radius: 10px;
}

.login-error {
  min-height: 1.2em;
  margin-bottom: 10px;
  color: #b91c1c;
  font-size: 0.9rem;
}