body {
  margin: 0;
  font-family: system-ui, sans-serif;
  background: #f5f5f5;
}

.login-container {
  max-width: 360px;
  margin: 80px auto;
  padding: 32px;
  background: white;
  border-radius: 12px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.08);
}

h1 {
  text-align: center;
  margin-bottom: 24px;
  font-weight: 600;
}

label {
  display: block;
  margin-bottom: 16px;
  font-size: 14px;
}

input {
  width: 100%;
  padding: 10px;
  margin-top: 6px;
  border: 1px solid #ccc;
  border-radius: 6px;
  font-size: 15px;
}

.btn-login {
  width: 100%;
  padding: 12px;
  margin-top: 12px;
  background: #0078d4;
  color: white;
  border: none;
  border-radius: 6px;
  font-size: 16px;
  cursor: pointer;
}

.btn-login:hover {
  background: #005fa3;
}

.error {
  background: #ffdddd;
  color: #a00;
  padding: 10px;
  border-radius: 6px;
  margin-top: 10px;
  font-size: 14px;
}
/* Placeholder premium para logo futuro */
.app-placeholder {
  width: 160px;
  height: 160px;
  margin: 0 auto 24px;
  border-radius: 20px;
  background: #e5e5e7;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  font-weight: 600;
  color: #555;
  box-shadow: 0 4px 20px rgba(0,0,0,0.12);
  letter-spacing: 0.5px;
}

/* Bloqueo global de selección de texto */
body, body * {
  user-select: none !important;
  -webkit-user-select: none !important;
  -ms-user-select: none !important;
}