* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: #f4f1ea;
  color: #23262e;
}
.hidden { display: none !important; }

.login-screen {
  max-width: 320px;
  margin: 120px auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
  text-align: center;
}
.login-screen h1 { margin-bottom: 12px; }
.login-screen input, .login-screen button {
  padding: 12px;
  font-size: 1rem;
  border-radius: 8px;
  border: 1px solid #d1cfc9;
}
.login-screen button { background: #d9481f; color: white; border: none; cursor: pointer; }
.error-text { color: #c0392b; }